With Optical Storage Medium; E.g., Optical Disc, Etc. Patents (Class 250/201.5)
  • Patent number: 10429012
    Abstract: A solution for packaging an optoelectronic device by aligning an optical element with respect to the package is provided. After initial placement of the optical element on the device package, an emitted light pattern can be measured and compared to a target light pattern. Subsequently, the position of the optical element can be adjusted. The emitted light pattern can be repeatedly compared to the target light pattern until the emitted light pattern is within an acceptable range of error and the optical element can be secured to the device package.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: October 1, 2019
    Assignee: Sensor Electronic Technology, Inc.
    Inventors: Igor Agafonov, Michael Shur, Alexander Dobrinsky
  • Patent number: 10413186
    Abstract: A neural imaging system may include an imaging array, an image data processor operably coupled to the imaging array to process image data received from the imaging array, and a beam angle separator disposed between the imaging array and an object being imaged. The beam angle separator may be configured to separate an object beam reflected from the object being imaged into a plurality of reference beams each having different angular separation with respect to the object beam. The image data processor may be configured to generate image data of the object for each one of the reference beams to correspond to a respective different depth within the object.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: September 17, 2019
    Assignee: The Johns Hopkins University
    Inventors: David W. Blodgett, Mark A. Chevillet, Michael P. McLoughlin
  • Patent number: 10374724
    Abstract: Adaptive communications focal plane arrays that may be implemented in, e.g., a specially-configured camera that can be utilized to receive and/or process information in the form of optical beams are presented. A specialized focal plane array (FPA) having a plurality of optical detectors is utilized, where one or more optical detectors are suppressed such that data is not allowed to be output from the one or more suppressed optical detectors, and only a significantly smaller number or subset of optical detectors receiving optical beams are allowed to output data. In this way, the rate at which data is to be output by an adaptive communications FPA (ACFPA) can be significantly reduced.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: August 6, 2019
    Assignee: ARON SUREFIRE, LLC
    Inventors: John C. Bortz, Narkis Shatz
  • Patent number: 10366718
    Abstract: A signal is monitored that provides an indicator of disturbance affecting a hard disk drive. In response to determining that the indicator of the disturbance satisfies a threshold, a lattice recursive least squares computation is applied to the signal to determine at least one notch frequency. A notch filter is formed using the at least one notch frequency. The notch filter is used by a servo controller loop that positions a read/write head over a disk of the hard disk drive. The notch filter is applied to the servo control loop for subsequent positioning of the read/write head.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: July 30, 2019
    Assignee: Seagate Technology LLC
    Inventor: Lou Supino
  • Patent number: 10361554
    Abstract: A circuit system includes a current sensor circuit, a subtractor circuit, a multiplier circuit, and a divider circuit. The current sensor circuit generates a current sense signal that indicates a current through an inductor. The circuit system generates a current value based on the current sense signal. The subtractor circuit determines a voltage difference across the inductor. The multiplier circuit multiplies the voltage difference by a time period that the voltage difference is applied across the inductor to generate a product. The divider circuit divides the product by the current value to generate an estimated inductance of the inductor.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: July 23, 2019
    Assignee: Altera Corporation
    Inventors: Jeffrey Demski, Douglas Lopata, Ashraf Lotfi
  • Patent number: 10274413
    Abstract: In some aspects, a flow cytometer system is provided that includes beam shaping optics positioned to manipulate a light beam and produce a resulting light beam that irradiates the core stream at the interrogation zone of the flow cell. The beam shaping optics include an acylindrical lens positioned to receive and focus light in a direction of a first axis orthogonal to a direction of light travel, and a cylindrical lens positioned to receive the light output from the acylindrical lens and to focus the light output from the acylindrical lens in a direction of a second axis orthogonal to the first axis and to the direction of light travel. The resulting light beam output has a flat-top shaped intensity profile along the first axis, and a Gaussian-shaped intensity profile along the second axis. Related methods of shaping a light beam at an interrogation zone of a flow cell are also provided.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: April 30, 2019
    Assignee: Abbott Laboratories
    Inventors: John F. Heanue, Stuart L. Friedman
  • Patent number: 10185144
    Abstract: An optical assembly is provided. The optical assembly includes a light transmitting terminal, a light receiving terminal, an optical component located between the light transmitting terminal and the light receiving terminal, a collimating unit located between the optical component and the light transmitting terminal, and a focusing unit located between the optical component and the light receiving terminal. The collimating unit includes a first lens located between the optical component and the light transmitting terminal, and a field lens located between the first lens and the optical component and configured to absorb an alignment error between the light transmitting terminal and the first lens. The focusing unit includes a second lens located between the optical component and the light receiving terminal.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: January 22, 2019
    Assignee: InnoLight Technology (Suzhou) Ltd.
    Inventors: Long Chen, Yuzhou Sun, Donghan Wang, Weilong Li, Dengqun Yu
  • Patent number: 10009565
    Abstract: An imaging apparatus 10 includes an imaging panel 11 formed by arranging imaging element units 20 included in one pixel or a plurality of pixels, in a two-dimensional matrix form. Each of the imaging element units 20 includes an imaging element 30 which converts an incident electromagnetic wave to a current, and a current/voltage conversion circuit 40A which converts the current from the imaging element to a voltage.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: June 26, 2018
    Assignee: Sony Corporation
    Inventors: Takahiro Sonoda, Atsushi Suzuki
  • Patent number: 10001622
    Abstract: Multifunction autofocus for automated microscopy includes automatic coarse focusing of an automated microscope by reflective positioning, followed by automatic image-based autofocusing of the automated microscope performed in reference to a coarse focus position. In some aspects, the image-based autofocusing utilizes astigmatism in microscope optics for multi-planar image acquisition along a Z axis direction of a microscope. In some other aspects, the image-based autofocusing utilizes astigmatism in microscope optics in combination with chromatic aberration for multi-planar image acquisition along the Z axis direction.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: June 19, 2018
    Assignees: Sanford Burnham Medical Research Institute, Vala Sciences, Inc.
    Inventors: Jeffrey H. Price, Derek N. Fuller, Albert L. Kellner, Behrad Azimi
  • Patent number: 10001562
    Abstract: A light receiver has a shield wall disposed facing a part of a near-side light-receiving face of a light receiving element from an end opposite from a far-side light-receiving face. The shield wall blocks a portion of reflection light from a detection object located at a distance at which the detection object reflects reflection light that causes an amount of light received by the light receiving element to be larger than or equal to a predetermined value.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: June 19, 2018
    Assignee: AZBIL CORPORATION
    Inventors: Nagayuki Sato, Shinichiro Suzuki, Tetsuo Koike
  • Patent number: 9972353
    Abstract: The disclosed technology provides a method that improves SMR throughput in vibration in storage systems. In one implementation, the method comprises receiving a write command to write data on a first track in a band of a storage medium, performing a vibration detection scheme to identify vibration events, determining if a number of vibration events is above a predetermined threshold, skipping the first track responsive to determining the number of vibration events is above a predetermined threshold, seeking to a second track adjacent to the first track, increasing an OCLIM on the second track adjacent to the first track from a default OCLIM to an increased OCLIM, and shifting the writer center on the second track adjacent to the first track.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: May 15, 2018
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Jian Qiang, Xiong Liu
  • Patent number: 9971129
    Abstract: An optical lens assembly, which has an optical axis, includes, at least one dual molded lens element having two plastic parts with different colors. The dual molded lens element includes a transparent portion and a light absorbing portion, wherein the transparent portion has an optical effective region. The dual molded lens element has an outer diameter surface connecting a first side surface and a second side surface of the dual molded lens element, the transparent portion is arranged from an optical effective region of the dual molded lens element to the outer diameter surface and surrounds the dual molded lens element, thus the transparent portion is a part of the outer diameter surface, and the light absorbing portion is located on one of the first side surface and the second side surface of the dual molded lens element.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: May 15, 2018
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Yeo-Chih Huang, Ming-Shun Chang
  • Patent number: 9946068
    Abstract: An optical method of displaying an expanded color image comprising extracting from input light bearing said colored image a first spectral portion and a second spectral portion such that together the two portions contain sufficient information for the image to be displayed in substantially its original colors, separately expanding the two spectral portions each in two dimensions and recombining the expanded spectral portions to display the expanded color image.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: April 17, 2018
    Assignee: BAE SYSTEMS plc
    Inventors: Mohmed Salim Valera, Michael David Simmonds
  • Patent number: 9900493
    Abstract: A CPU detects an image displacement amount using a signal acquired from an image sensor and converts a defocus amount using a conversion factor. The CPU predicts a future image-plane position of a moving object based on data on the defocus amount, time and a lens position. The CPU corrects the conversion factor using the data. The CPU predicts the future image-plane position of the moving object using the corrected conversion factor.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: February 20, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takayuki Akaguma
  • Patent number: 9857036
    Abstract: A servo includes a servo casing, a servo cover connected to the servo casing, a circuit board, a light emitting member, and a light guide. The servo cover and the servo casing defines a receiving space. The circuit board is received in the receiving space. The light emitting member is arranged on the circuit board and electrically coupled to the circuit board. The light emitting member is capable of emitting light according to signals indicative of a motion state from the circuit board. The light guide includes a light incident surface that is located adjacent to the light emitting member, and a light exit surface that is exposed to an external surface of the servo cover.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: January 2, 2018
    Assignee: UBTECH ROBOTICS CORP.
    Inventors: Wenquan Shu, Youjun Xiong
  • Patent number: 9818338
    Abstract: An LED driver includes a current driver receiving a reference voltage providing a charging current for driving channel output(s) of an LED panel. A pre-charge circuit includes a voltage selector having a first and second select input, a control input receiving a pre-charge voltage select signal based on a next ON/OFF state that is after a current sub-period, and a voltage selector output for switchably outputting a higher voltage level (V_H) when the next state is OFF and a lower level (V_L) when the next state ON. An enable circuit has an enable input receiving an enable signal active during a break time of the current sub-period for driving the channel output when enabled with a pre-charge current to V_H or a relatively higher voltage level when the next state is OFF, and to V_L or a relatively lower voltage level when the next state is ON.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: November 14, 2017
    Assignee: Texas Instruments Incorporated
    Inventors: Jiancong Ruan, Minyi Xie, Runqin Tan
  • Patent number: 9749614
    Abstract: An image capturing system comprises a first image capturing module, a second image capturing module and a depth map processing/generating device. The first image capturing module having a first lens, a first aperture and a first image sensor generates a first image corresponding to a first optical-wavelength range. The second image capturing module having a second lens, a second aperture, a third aperture and a second image sensor generates a second image of the first optical-wavelength range and a third image of a second optical-wavelength range. The depth map processing/generating device generates a first depth map according to the parallax of the scene observed in the first image and the second image, and generates a second depth map according to the difference/ratio of sharpness/blur between the second image and the third image, therefore wider range of resolving the object distance and accuracy of the image could be both considered.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: August 29, 2017
    Assignee: LITE-ON TECHNOLOGY CORPORATION
    Inventor: Jau-Yu Chen
  • Patent number: 9671527
    Abstract: An optical lens assembly, which has an optical axis, includes, at least one dual molded lens element having two plastic parts with different colors. The dual molded lens element includes a transparent portion and a light absorbing portion, wherein the transparent portion has an optical effective region. The dual molded lens element has an outer diameter surface connecting a first side surface and a second side surface of the dual molded lens element, the transparent portion is arranged from an optical effective region of the dual molded lens element to the outer diameter surface and surrounds the dual molded lens element, thus the transparent portion is a part of the outer diameter surface, and the light absorbing portion is located on one of the first side surface and the second side surface of the dual molded lens element.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: June 6, 2017
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Yeo-Chih Huang, Ming-Shun Chang
  • Patent number: 9673166
    Abstract: A three-dimensional mounting method for successively laminating N number of upper-layer joining materials includes positioning a first upper-layer joining material relative to a lowermost-layer joining material by recognizing an alignment position of the lowermost-layer joining material and a lower face alignment position of the first upper-layer joining material by a two-field image recognition unit, storing positional coordinates of the alignment position of the lowermost-layer joining material, positioning an (n+1)-th upper-layer joining material relative to an n-th upper-layer joining material by recognizing an upper face alignment position of the n-th upper-layer joining material and a lower face alignment position of the (n+1)-th upper-layer joining material, storing positional coordinates of the upper face alignment position of the n-th upper-layer joining material, recognizing an upper face alignment position of the N-th uppermost-layer joining material, and storing positional coordinates of the upper
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: June 6, 2017
    Assignee: TORAY ENGINEERING CO., LTD.
    Inventors: Koji Nishimura, Katsumi Terada, Mikio Kawakami
  • Patent number: 9594238
    Abstract: An aberration correction device (3) corrects wave front aberration arising in an optical system that includes an object lens (4) disposed in an optical path for light beams output by a coherent light source (1). The aberration correction device (3) has a symmetrical aberration correction element (3a) that corrects symmetrical aberrations, which are the wave front aberrations that are symmetrical with respect to the optical axis among the wave front aberrations generated in the optical path, and an asymmetrical aberration correction element (3b) that corrects asymmetrical aberrations, which are wave front aberrations that are asymmetrical with respect to the optical axis, generated in light beams incident obliquely on the object lens (4).
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 14, 2017
    Assignee: CITIZEN WATCH CO., LTD.
    Inventors: Kenji Matsumoto, Ayano Tanabe, Nobuyuki Hashimoto, Makoto Kurihara, Masafumi Yokoyama
  • Patent number: 9523846
    Abstract: A 3D localization microscopy system, 4D localization microscopy system, or an emitter tracking system arranged to cause a phase difference between light passing to or from one part of the objective relative to light passing to or from another part of the objective, to produce a point emitter image which comprises two lobes, a separation between which is related to the position of the emitter relative to the objective of the imaging system, and in the 4D system a further property of which image or of said light to or from the objective is related to another location independent property of the emitter.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: December 20, 2016
    Assignee: Carl Zeiss Microscopy GmbH
    Inventors: Christian Soeller, David Michael Baddeley, Mark Bryden Cannell
  • Patent number: 9369208
    Abstract: An optical signal emitter includes a transmitting lens; a lens supporting portion, extending from an edge of the transmitting lens to defined a containing space surrounded by the transmitting lens and the lens supporting portion; a lens carrier, for carrying the transmitting lens and the lens supporting portion, wherein a coupling surface is defined on the lens carrier and at least a part of the lens supporting portion is coplanar with the lens carrier with respect to the coupling surface; a light transmitter, disposed in the containing space and coaxially with the transmitting lens, so as to define an light transmission path for light passing through coupling surface by an alignment between the light transmitter and the transmitting lens; at least one engagement portion, disposed on the coupling surface; at least one magnet, disposed on the lens carrier.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: June 14, 2016
    Assignee: OPTOMEDIA TECHNOLOGY INC.
    Inventors: Hui-Tsuo Chou, Tung Lou Lin, Hsieh Yi Chou
  • Patent number: 9291449
    Abstract: Technology for detecting a change in a configuration position of one or more elements in an illumination system is described. A light source generates an illumination signal, and an element of the system directs a portion of the light of the signal back to a light detector. In one example, the portion of light is reflected back to the light detector. By monitoring an output signal of the light detector based on the directed light, control circuitry can detect that a position of an element of the system has changed. In one example, an off-the-shelf integrated circuit laser diode package including a monitor photodiode can be used with a reflective element. In one example, the reflective element is a tilted optical element. Changes can be detected in the configuration of one or more optical elements of the illumination system which are outside the laser diode package.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: March 22, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Scott McEldowney, Dawson Yee
  • Patent number: 9285321
    Abstract: A fluorescence detection device includes: a light source that emits excitation light in a first direction; a base unit (30) to which the light source is attached; an opening (30a) that is provided on a side in the first direction of the base unit (30) with respect to the light source; a cantilever (31) that is cantilevered to the base unit (30) to extend from an inner edge of the opening (30a) toward a center side of the opening (30a); an optical path conversion unit (20) that is fixed to a free end of the cantilever (31), converts a traveling direction of the excitation light emitted from the light source into a second direction different from the first direction, and irradiates a measurement object with the excitation light turned in the second direction; and a photodetection element that is disposed on a side of the opening (30a) opposite to the measurement object and detects fluorescence passing through the opening (30a) in fluorescence emitted from the measurement object irradiated with the excitation li
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: March 15, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Ryohhei Kawamuki
  • Patent number: 9279718
    Abstract: Methods, systems, and devices are provided that may facilitate multibeam coherent detection and/or speckle mitigation. For example, some embodiments provide for multiple simultaneous independent speckle realizations in light reflected from an actively illuminated target while also may simultaneously provide reference beams inherently aligned to each speckle. These tools and techniques may facilitate coherent detection of light returned from a target. In some cases, this may provide the basis for substantial speckle mitigation. With the addition of illumination phase or frequency modulation and/or intelligent algorithmic methods, some designs may utilize the multiple speckle returns to actively mitigate speckle noise, and can further be used to separately measure speckle phase to implement interferometric resolution surface tilt measurement and/or surface imaging. These tools and techniques may be utilized for other purposes related to multibeam coherent detection and/or speckle mitigation.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: March 8, 2016
    Assignee: Light Works II, LLC
    Inventor: Christian J. Grund
  • Patent number: 9245570
    Abstract: Provided is a reproducing apparatus including: an optical system that obtains a signal light by radiating light emitted from a light source and generates a reference light from the light emitted from the light source, with respect to a recording medium, and that generates first to fourth groups of the signal light beams and the reference light beams, with respect to the superposed light in which the signal light and the reference light are superposed onto each other; a light receiving unit that receives light beams of the first to fourth groups of the signal light beams and the reference light beams respectively through first to fourth light receiving elements; and a reproduction signal generation circuit that calculates a first differential signal and a second differential signal, and that generates a reproduction signal by performing an arithmetic operation using the first and second differential signals.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: January 26, 2016
    Assignee: SONY CORPORATION
    Inventors: Kimihiro Saito, Koji Sekiguchi
  • Patent number: 9188532
    Abstract: An inspection apparatus includes a light emitting device, a first lens, a second lens, a light receiving device, and an inspection device. The light emitting device emits a light beam. The first lens is disposed such that an optical axis thereof extends in one direction and changes divergence of the light beam having been emitted from the light emitting device and passing therethrough. The second lens is disposed such that an optical axis of the second lens extends in the one direction. The light beam having exited the first lens and passing through the second lens is condensed on the inspection object by the second lens. The light receiving device is disposed between the first lens and the second lens and receives at least part of the reflected light beam. The inspection device detects a reflection characteristic in accordance with a result of light reception.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: November 17, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Hiroyuki Hotta
  • Patent number: 8495813
    Abstract: A method of making an energy-assisted magnetic recording apparatus is provided. The method comprises the step of aligning a first wafer including a plurality of vertical cavity surface emitting lasers (VCSELs) with a second wafer including a plurality of magnetic recording heads, such that an emitting region of each of the plurality of VCSELs is disposed over a light redirecting structure of a corresponding one of the plurality of magnetic recording heads. The method further comprises the step of bonding the first wafer to the second wafer.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: July 30, 2013
    Assignee: Western Digital (Fremont), LLC
    Inventors: Yufeng Hu, Jinshan Li
  • Patent number: 8455805
    Abstract: Processing a two dimensional (2D) barcode using a mobile telecommunications terminal having an image scanner includes obtaining a scanned image of the 2D barcode from the image scanner, decoding the image to obtain data, including a web address, and associating an identifier with the decoded web address, such that the identifier is identifiable by a remote proxy server to obtain information relating to the use of the barcode. A browser of the mobile terminal transmits a web page request including the decoded web address and the identifier. The web page request may be identified as originating from a 2D barcode at a server in a mobile telecommunications network. The request is received from a mobile terminal, an inserted identifier is identified in the request, and a record is saved, the record including an identifier of the mobile terminal or a user of the mobile terminal and the web page address.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: June 4, 2013
    Assignee: Vodafone Group PLC
    Inventor: Edward Hall
  • Patent number: 8393074
    Abstract: A method of manufacturing a thermally-assisted magnetic recording head includes: providing a light source unit including a laser diode; providing a slider having a thermally-assisted magnetic recording head section thereon, the thermally-assisted magnetic recording head section including a magnetic pole, an optical waveguide, and a plasmon generator, the magnetic pole and the optical waveguide both extending toward an air bearing surface, the plasmon generator being located between the magnetic pole and the optical waveguide; driving the laser diode to allow a light beam to be emitted therefrom, the light beam including both a TE polarization component and a TM polarization component; performing an alignment between the light source unit and the thermally-assisted magnetic recording head section, based on a light intensity distribution of the TE polarization component in the light beam which has been emitted from the laser diode and then passed through the optical waveguide; and bonding the light source unit
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: March 12, 2013
    Assignees: TDK Corporation, Sae Magnetics (H.K) Ltd.
    Inventors: Seiichi Takayama, Koji Shimazawa, Shinji Hara, Yasuhiro Ito, Nobuyuki Mori, Ryo Hosoi, Kazuaki Takanuki, Youichi Ando, Chimoto Sugiyama
  • Patent number: 8329106
    Abstract: The present invention relates to a apparatus for quantitative continuous real-time monitoring to monitor a continuous reaction of biochemical reagent and the reaction, such as DNA. More particularly, the present invention is directed to a miniaturized apparatus for real-time monitoring of biochemical reaction, which comprises capillary tubes (100) wherein biochemical reaction mixture flow; a thermal conduction block (120) which is coiled with capillary tube several rounds in order and composed of several blocks for temperature control of which temperatures are different from each other for heating or cooling the biochemical reaction mixture which flow in capillary tube, and a temperature controller which controls the temperature of above temperature control block; a radiation part (130) to radiate the reaction mixture flowing through the capillary tube and a light receiving section (140) which receives and measures the intensity of the fluorescence generated from the capillary tubes.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: December 11, 2012
    Assignee: Bioneer Corporation
    Inventors: Han Oh Park, Hanee Park, Jong Soo Baek
  • Patent number: 8269157
    Abstract: A system includes an objective lens, an imaging module, and a measurement module. The objective lens is configured to receive light emitted by a light source, focus the emitted light onto a target object, and receive light reflected by the target object. The imaging module is configured to receive a first portion of the reflected light. The measurement module is configured to receive a second portion of the reflected light and includes a photo detector and an astigmatic lens configured to direct the second beam onto the photo detector.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: September 18, 2012
    Assignee: Academia Sinica
    Inventors: Ing-Shouh Hwang, En-Te Hwu, Shao-Kang Hung
  • Patent number: 8270283
    Abstract: There is herein described a Transmedian Storage and Transfer Device (TSTD) that will provide a more useful system for information storage, retrieval, and computation. This is achieved by increasing the speed and storage capacity beyond that provided by existing computers and related systems. To obtain these benefits, the TSTD utilizes a spherical surface for information storage along with a system detector that can be point-like, line-like, or spherical. Further more, multiple spheres can be incorporated into the TSTD thus resulting in a sphere matrix.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: September 18, 2012
    Inventors: Jack V. Smith, Ben T. Foster
  • Patent number: 8159908
    Abstract: A photodetector detecting reflected light components from an optical medium, the photodetector including a first detector divided into eight sections detecting the reflected light components and converting the light components into electrical signals, a first calculating portion calculating a first tracking error signal from the electrical signals by a differential push-pull method, a second calculating portion calculating a first focusing error signal by an astigmatism method and calculating a second tracking error signal by a differential phase detection method from the electrical signals converted by the first detector; a second detector divided into four sections detecting the reflected light components reflected by the optical recording medium to convert the light components into electrical signals; and a third calculating portion calculating a second focusing error signal by the astigmatism method and calculating a third tracking error signal by the differential phase detection method from the electrica
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: April 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soo-han Park, Jong-uk Kim
  • Patent number: 8154808
    Abstract: An autofocus imaging apparatus (200) for three-dimensional imaging on a surface of a flexible media mounted on a cylindrical drum (104) includes a carriage (210) which moves parallel to a surface of the drum and an imaging stage (208) mounted on the carriage. The imaging stage includes a displacement sensor (112) for measuring a distance to the surface of the flexible media; imaging optics (216) for producing a three-dimensional image on the flexible media; and an autofocus drive (220) for changing a focus of the imaging optics. Encoders (256, 260) provide data on the drum and carriage position. A controller (116) receives and processes data from the displacement sensor and the encoders. A computer (236) receives data from the controller, processes controller data, and transmits instructions to the controller. The controller receives computer instructions and transmits focus commands to the autofocus drive or the imaging stage.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: April 10, 2012
    Assignee: Eastman Kodak Company
    Inventors: Vitaly Burkatovsky, David Aviel
  • Patent number: 8111598
    Abstract: An optical disk apparatus according to the present invention includes a spindle motor that rotates an optical disk on whose information recording surface a plurality of addresses is recorded, an optical pickup that records/reproduces an information signal on/from the information recording surface of the optical disk rotated by the spindle motor, an strobe light-emitting unit that irradiates a label surface of the optical disk with light, and a control unit that causes the strobe light-emitting unit to emit light based on an address selected from the plurality of addresses as a reference address and a reference signal readable from the optical disk.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: February 7, 2012
    Assignee: Sony Corporation
    Inventors: Yuichiro Ikemoto, Shintaro Tanaka, Koji Ashizaki
  • Patent number: 7982169
    Abstract: An apparatus and a method are presented for detecting the focal position of an optical system (10) with a radiation source (12), a focusing imaging system (16), an at least partially reflective surface (18) on the focus (18a), a digital camera (24) for recording an image reflected by said surface (18), a computer (C) for evaluating the image recorded by the camera (24), and with an optical element (34; 36) in the beam path of the optical system (10) upstream of the focusing imaging system (16), which element influences said image depending on the focal position.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: July 19, 2011
    Assignee: Wavelight AG
    Inventors: Olaf Kittelmann, Peter Triebel
  • Patent number: 7956312
    Abstract: An optical disc device comprising: first and second laser diodes to radiate first and second laser beams with different first and second wavelengths, respectively; a first objective lens to irradiate the first laser beam to reflection area to read out image recording control data for controlling record of image recorded in the reflection area on label side of optical disc; a second objective lens to irradiate the second laser beam to image recording area to record image in the image recording area on the label side after reading out the data; a lens holder that the lenses are fixed thereon to be arranged side by side in radial direction, to be displaced in direction toward signal side and the radial direction; and a control unit to obtain distance between the lenses in the radial direction to calibrate recording position of image signal recorded in the image recording area.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: June 7, 2011
    Assignees: Sanyo Electric Co., Ltd., Sanyo Optec Design Co., Ltd.
    Inventors: Kiyoshi Hibino, Kenichirou Kawabuchi
  • Patent number: 7915569
    Abstract: A method for calibrating a focus level on a light scribe disc includes driving a pick-up head with a predetermined speed in a predetermined direction to calibrate a focus level for a moving stage, detecting light summed signals along the light path of the moving stage, and finding and recording the maximum light summed signal and corresponding position of the pick-up head as the focus level for the moving stage. When a number of the moving stages is greater than a predetermined value, the focus level of the moving stage serves as the optimum focus level of the light scribe disc. When the number of moving stages is fewer, lowering the speed with a stage reduction and change the direction opposite to the predetermined direction, and proceeding to a next moving stage to calibrate the focus level.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: March 29, 2011
    Assignee: Quanta Storage Inc.
    Inventors: Shih-Wei Huang, Shih-Jung Huang
  • Patent number: 7821652
    Abstract: A method for focusing discrete points on an under-measured object is provided. The method includes: (a) receiving an image of the object, selecting measurement points on the image, and obtaining X, Y coordinate values of the measurement points; (b) searching a solid point on the under-measured object according to the X, Y coordinate value of one of the measurement points, wherein the solid point corresponds to the measuring point; (c) emitting a laser light to the solid point for computing a vertical distance “h” between the laser aid and the solid point; (d) computing a Z coordinate value of the measurement point according to the “h”; repeating step (b) to step (d) until all the Z coordinate values of the measurement points have been computed; and (e) focusing the solid points according to the X, Y and Z coordinate values of the measurement points. A related system is also provided.
    Type: Grant
    Filed: December 29, 2007
    Date of Patent: October 26, 2010
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Chih-Kuang Chang, Li Jiang
  • Patent number: 7755014
    Abstract: An optical pickup device is equipped with a diffraction element (8) that includes liquid crystal, two transparent electrodes sandwiching the liquid crystal, and a liquid crystal control portion (21) with electrodes connected electrically to the transparent electrode for controlling a voltage to be applied between the two transparent electrodes. The diffraction element (8) is provided with two types of diffraction areas (19) and (20). Each of the diffraction areas (19) and (20) generate predetermined diffracted light only from one of different wavelengths of light beams. The transparent electrodes of the diffraction areas (19) and (20) that are patterned are connected electrically to different electrodes (22c) and (22a), respectively.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: July 13, 2010
    Assignee: Funai Electric Co., Ltd.
    Inventor: Kenji Nagashima
  • Patent number: 7750276
    Abstract: In multilayer optical discs and high-speed optical discs, the amount of reproduction light per unit time greatly decreases and the reproduction signal quality (S/N) significantly drops due to the low effective reflectivity and the short read time of the medium. These problems are solved by causing reflected signal light from the optical disc and reference light, which is separated from the same light source and introduced into a detector without being shone onto the optical disc, to interference with each other on the detector. Detector outputs having four different interference states are simultaneously obtained, the interference states being displaced at intervals of 90° in terms of the phase relationship between the reference light and the signal. Based on a operation of the four detector outputs, a reproduction signal can be obtained that is stable at all times and amplified with high quality, even when there is an optical path length variation due to disc undulations.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: July 6, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Harukazu Miyamoto, Hideharu Mikami, Takeshi Shimano
  • Patent number: 7718939
    Abstract: An optical pickup apparatus includes a light source to emit light of a predetermined wavelength, an objective lens to focus the light emitted from the light source to form a light spot on an optical disc having a plurality of recording layers, a photodetector to detect a signal and an error signal by detecting the light reflected from the optical disc, and a light scattering portion to reduce an amount of the light reflected from a non-target layer of the recording layers and incident on the photodetector by scattering part of the light reflected from the optical disc during a reproduction of data from the optical disc.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: May 18, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Bong-gi Kim
  • Patent number: 7671312
    Abstract: The present invention provides an optical pickup system including a first light source emitting a light flux with a first wavelength; a second light source emitting a light flux with a second wavelength; and a light-converging optical system converging the light flux with the first wavelength from the first light source with a first magnification onto a first reference surface set at a first depth, and converging the light flux with the second wavelength from the second light source with a second magnification onto a second reference surface set at a second depth. The first and second wavelengths, the first and second depths, and the first and second magnifications satisfy: a first condition according to an aberration and a second condition according to a working distance.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: March 2, 2010
    Assignee: Konica Minolta Opto, Inc.
    Inventor: Katsuya Sakamoto
  • Patent number: 7636286
    Abstract: A front photo detector (FPD) of an optical pick-up for an optical recording and playing apparatus having no gain selection switch, a simplified configuration, an improved prevention of an abnormal operation due to an error in gain selection, and improved reliability. The front photo detector includes a photo diode unit, a current-voltage amplifying circuit, and a voltage amplifying unit. The photo diode unit outputs current proportional to the power of the light emitted from one of a plurality of laser diodes. The current-voltage amplifying circuit converts the current output from the photo diode unit into a voltage. The voltage amplifying circuit amplifies the voltage output from the current-voltage amplifying circuit by a predetermined gain.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: December 22, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong-kyu Lee, Hee-dong Kim, Pyong-yong Seong
  • Patent number: 7630152
    Abstract: A guide shaft and a guide portion movably guide a lens holder for holding a collimator lens (i.e. correction lens) in an optical axis direction. A stepping motor rotates a screw shaft arranged in parallel to the optical axis direction. A nut member converts a rotating movement of the screw shaft into a rectilinear movement of the optical axis direction. An urging spring urges the lens holder against the guide shaft and the guide portion. The lens holder is driven in the optical axis direction along the guide shaft by the stepping motor, with a first contact portion and a second contact portion of the lens holder being contacted with the guide shaft, and a third contact portion of the lens holder being contacted with the guide portion by an urging force of the urging spring. The optical pickup device having the above arrangement allows for stable driving of a correction lens.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: December 8, 2009
    Assignee: Panasonic Corporation
    Inventors: Masahiro Inata, Kanji Wakabayashi, Hironori Tomita
  • Patent number: 7622696
    Abstract: An optical head device is provided with an objective lens (5) for collecting light emitted from a light source on an optical recording medium (6); a diffraction optical element (8a) for diffracting the reflection light of the emitted light reflected by the recording medium (6) and enters through the objective lens (5); and a photodetector (10a) for receiving a light flux of the reflection light diffracted by the diffraction optical element (8a). The light flux has a first light flux group passed through an area in the diffraction optical element (8a), and a second light flux group passed through a part of the area. The photodetector (10a) detects the first light flux group and the second light flux group by separate photodetector sections (14a to 14h).
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: November 24, 2009
    Assignee: NEC Corporation
    Inventor: Ryuichi Katayama
  • Publication number: 20090278029
    Abstract: A pickup device includes an irradiation optical system containing an objective lens for forming a spot by converging a light beam onto a track of a recording surface of an optical recording medium having a plurality of laminated recording layers; and a detection optical system containing a photodetector for receiving, through the objective lens, return light which was reflected and returned from the spot to perform a photoelectric conversion, in which a position of the objective lens is controlled in response to an electric signal arithmetically operated from an output of the photodetector. The photodetector includes a plurality of photosensing element groups which are arranged away from each other on a plane to which an optical axis of the return light penetrates perpendicularly and each of the groups is composed of a plurality of photosensing elements. The pickup device further comprises a dividing element disposed on another plane to which the optical axis of the return light penetrates perpendicularly.
    Type: Application
    Filed: November 1, 2006
    Publication date: November 12, 2009
    Applicant: PIONEER CORPORATION
    Inventors: Masakazu Ogasawara, Takuma Yanagisawa, Makoto Sato
  • Patent number: 7595472
    Abstract: An optical head device includes a light source which emits a light beam, an objective lens which condenses the light beam on the optical disk, a condensing lens which condenses reflected light from the optical disk, a liquid crystal panel disposed near a focal point of the condensing lens and having pixels, a driver which drives the pixels of the liquid crystal panel to pass the reflected light from a reproduction layer of the optical disk and partially interrupt the reflected light from a non-reproduction layer of the optical disk, and a photodetector which detects light passed through the liquid crystal panel.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: September 29, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yuichiro Yamamoto
  • Patent number: 7592585
    Abstract: The soldered connection of an end portion of a cable extending from each element with a main substrate is prevented from being broken. An end portion of a cable t1 extending from a light source element LD that is fixed to a standing frame 2A on a slide base 2 movable back-and-forth in the radial direction of a disk passes through an insertion opening 9 in the slide base 2 to be connected by soldering 8b to a main substrate 3, and an extended portion 15 extending from the peripheral edge of the insertion opening 9 close to the main substrate 3 is formed integrally with the slide base 2, the clearance “?” between the leading end face 15A of the extended portion 15 and the main substrate 3 being set slightly greater than the thickness “d” of the cable t1, so that the cable t1, if tensioned when positioning the light source element LD, is brought into contact with the edge 15a of the leading end face 15A.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: September 22, 2009
    Assignee: Funai Electric Co., Ltd.
    Inventor: Masaaki Suetsugu