Patents Assigned to OmniVision Technologies
  • Patent number: 7944467
    Abstract: A task-based imaging system for obtaining data regarding a scene for use in a task includes an image data capturing arrangement for (a) imaging a wavefront of electromagnetic energy from the scene to an intermediate image over a range of spatial frequencies, (b) modifying phase of the wavefront, (c) detecting the intermediate image, and (d) generating image data over the range of spatial frequencies. The task-based imaging system also includes an image data processing arrangement for processing the image data and performing the task. The image data capturing and image data processing arrangements cooperate so that signal-to-noise ratio (SNR) of the task-based imaging system is greater than SNR of the task-based imaging system without phase modification of the wavefront over the range of spatial frequencies.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: May 17, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventors: Paulo E. X. Silveira, Ramkumar Narayanswamy, Robert H. Cormack, Gregory E. Johnson, Edward R. Dowski, Jr.
  • Patent number: 7940170
    Abstract: A location tracking service includes a location tracking server and individual tracking modules. An individual tracking module can be attached or embedded in a consumer product. Each tracking module is programmable by an end-user to include a private ID that is sent along with tracking data to the location tracking server. The end-user can define and edit the private ID in the tracking module independent of the location tracking service to improve privacy protection. The tracking data may include raw (unprocessed) location data to reduce processing requirements at the tracking module.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: May 10, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventor: Guannho George Tsau
  • Patent number: 7939940
    Abstract: A resin coated copper foil is used to fabricate a multilayer Chip Scale Package (CSP). A CSP package base has a first electrical routing layer. A resin coated copper foil is hot pressed onto the CSP package base and then patterned to form a second electrical routing layer. Conductive vias are then formed between the electrical routing layers. An Organic Solder Preservative (OSP) is used a surface finish for solder balls of the CSP.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: May 10, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventor: Jari Hiltunen
  • Patent number: 7939357
    Abstract: An active pixel using a photodiode with multiple species of P type dopants is disclosed. The pixel comprises a photodiode formed in a semiconductor substrate. The photodiode is a P? region formed within an N-type region. The P? region is formed from an implant of boron and an implant of indium. Further, the pixel includes a transfer transistor formed between the photodiode and a floating node and selectively operative to transfer a signal from the photodiode to the floating node. Finally, the pixel includes an amplification transistor controlled by the floating node.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: May 10, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventor: Howard E. Rhodes
  • Patent number: 7940310
    Abstract: A method of automatic white balance for an image capture system is disclosed. The automatic white balance mechanism ascertains the illuminant source of an image by analyzing the number of white pixels within a predefined white area in a color space diagram. The automatic white balance mechanism also determines gain adjustments based on the evaluating the average RGB values to achieve white balance.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: May 10, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventor: Ge Shi
  • Patent number: 7936394
    Abstract: Mobile devices and methods of operating mobile devices are disclosed herein. In one embodiment, a mobile device includes a rechargeable battery, a battery charger electrically coupled to the battery, and an image sensor operably coupled to the battery charger to selectively charge the battery. As such, the image sensor is configured to capture images and provide current to charge the battery. The image sensor can be a CMOS image sensor or a CCD image sensor. The mobile device may further include a housing, with the battery, battery charger, and image sensor contained within the housing.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: May 3, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventor: Raymond Wu
  • Publication number: 20110090968
    Abstract: A method for encoding a new unit of video data includes: (1) incrementally, in raster order, decoding blocks within a search window of a unit of encoded reference video data into a reference window buffer, and (2) encoding, in raster order, each block of the new unit of video data based upon a decoded block of the reference window buffer. A system for encoding a new unit of video data includes a reference window buffer, a decoding subsystem, and an encoding subsystem. The decoding subsystem is configured to incrementally decode, in raster order, blocks within a search window of a unit of encoded reference video data into the reference window buffer. The encoding subsystem is configured to encode, in raster order, each block of the new unit of video data based upon a decoded block of the reference window buffer.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 21, 2011
    Applicant: OmniVision Technologies, Inc.
    Inventor: Yuguo YE
  • Patent number: 7916347
    Abstract: A method of automatic white balance for an image capture system is disclosed. The automatic white balance mechanism ascertains the illuminant source of an image by analyzing the number of white pixels within a predefined white area in a color space diagram. The automatic white balance mechanism also determines gain adjustments based on the evaluating the average RGB values to achieve white balance.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: March 29, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventor: Ge Shi
  • Patent number: 7910961
    Abstract: A color pixel array includes first, second, and third pluralities of color pixels each including a photosensitive region disposed within a first semiconductor layer. In one embodiment, a second semiconductor layer including deep dopant regions is disposed below the first semiconductor layer. The deep dopant regions each reside below a corresponding one of the first plurality of color pixels but substantially not below the second and third pluralities of color pixels. In one embodiment, buried wells are disposed beneath the second and third pluralities of color pixels but substantially not below the first plurality of color pixels.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: March 22, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventors: Duli Mao, Vincent Venezia, Hsin-Chih Tai, Yin Qian, Howard E. Rhodes
  • Patent number: 7911019
    Abstract: A reflowable camera module has a set of solder joints formed on a bottom surface of the camera module that provide electrical signal and power connections between the camera module and a printed circuit substrate. The solder joints are susceptible to failure caused by shear forces, particularly in corner regions. Additional localized mechanical supports are provided to protect those solder joints carrying power and electrical signals for the camera module. The localized mechanical supports are formed outside of a region containing the solder joints carrying power and electrical signals. The localized mechanical supports may include dummy solder joints formed in corner regions and/or dummy leads used to support the camera module. Solder joint reliability is enhanced without requiring the use of an underfill encapsulant.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: March 22, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventors: Jari Hiltunen, Ian Montandon
  • Patent number: 7911501
    Abstract: Systems and methods include optics having one or more phase modifying elements that modify wavefront phase to introduce image attributes into an optical image. A detector converts the optical image to electronic data while maintaining the image attributes. A signal processor subdivides the electronic data into one or more data sets, classifies the data sets, and independently processes the data sets to form processed electronic data. The processing may optionally be nonlinear. Other imaging systems and methods include optics having one or more phase modifying elements that modify wavefront phase to form an optical image. A detector generates electronic data having one or more image attributes that are dependent on characteristics of the phase modifying elements and/or the detector. A signal processor subdivides the electronic data into one or more data sets, classifies the data sets and independently processes the data sets to form processed electronic data.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: March 22, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventors: Gregory E. Johnson, Edward R. Dowski, Jr., Kenneth S. Kubala, Ramkumar Narayanswamy, Hans Brandon Wach
  • Patent number: 7901974
    Abstract: A technique for fabricating an array of imaging pixels includes fabricating front side components on a front side of the array. After fabricating the front side components, a dopant layer is implanted on a backside of the array. A mask is formed over the dopant layer to selectively expose portions of the dopant layer. Next, the exposed portions of the dopant layer are laser annealed. Alternatively, the mask may be disposed over the backside prior to the formation of the dopant layer and the dopants implanted through the exposed portions and subsequently laser annealed.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: March 8, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventors: Vincent Venezia, Hsin-Chih Tai, Duli Mao, Yin Qian
  • Patent number: 7888763
    Abstract: A backside illuminated imaging sensor includes a semiconductor layer and an infrared detecting layer. The semiconductor layer has a front surface and a back surface. An imaging pixel includes a photodiode region formed within the semiconductor layer. The infrared detecting layer is disposed above the front surface of the semiconductor layer to receive infrared light that propagates through the imaging sensor from the back surface of the semiconductor layer.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: February 15, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventors: Yin Qian, Howard E. Rhodes, Hsin-Chih Tai, Vincent Venezia, Duli Mao
  • Patent number: 7889903
    Abstract: A biometric optical recognition system includes optics, including a wavefront coding mask, for imaging a wavefront of object to be recognized to an intermediate image, and a detector for detecting the intermediate image. A modulation transfer function detected by the detector contains no zeros such that subsequent task based image processing recognizes the object. A biometric recognition system includes optics for imaging a wavefront of an object to be recognized to a first intermediate image, and a detector for detecting the first intermediate image. The optics include a phase changing element configured for modifying the wavefront such that a modulation transfer function characterizing detection of the first intermediate image contains no zeros such that subsequent task based image processing recognizes the object.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: February 15, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventors: Edward Raymond Dowski, Jr., Kenneth Scott Kubala, Alan Eugene Baron
  • Patent number: 7888159
    Abstract: The invention involves the integration of curved micro-mirrors over a photodiode active area (collection area) in a CMOS image sensor (CIS) process. The curved micro-mirrors reflect light that has passed through the collection area back into the photo diode. The curved micro-mirrors are best implemented in a backside illuminated device (BSI).
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: February 15, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventors: Vincent Venezia, Hsin-chih Tai
  • Patent number: 7888215
    Abstract: An image sensor with a high full-well capacity includes a photosensitive region, a transfer gate, and sidewall spacers. The photosensitive region is formed to accumulate an image charge in response to light. The transfer gate disposed adjacent to the photosensitive region and coupled to selectively transfer the image charge from the photosensitive region to other pixel circuitry. First and second sidewall spacers are disposed on either side of the transfer gate. The first sidewall spacer closest to the photosensitive region is narrower than the second sidewall spacer. In some cases, the first sidewall spacer may be omitted.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: February 15, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventors: Duli Mao, Hsin-Chih Tai, Vincent Venezia, Yin Qian, Howard E. Rhodes
  • Patent number: 7876417
    Abstract: An optical lithography system that has extended depth of focus exposes a photoresist coating on a wafer, and includes an illumination sub-system, a reticle, and an imaging lens that has a pupil plane function to form an aerial image of the reticle proximate to the photoresist. The pupil plane function provides the extended depth of focus such that the system may be manufactured or used with relaxed tolerance, reduced cost and/or increased throughput. The system may be used to form precise vias within integrated circuits even in the presence of misfocus or misalignment.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: January 25, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventors: Edward Raymond Dowski, Jr., Gregory E. Johnson, Kenneth S. Kubala, Wade Thomas Cathey, Jr.
  • Patent number: 7875918
    Abstract: An image sensor pixel includes a substrate, a first epitaxial layer, a collector layer, a second epitaxial layer and a light collection region. The substrate is doped to have a first conductivity type. The first epitaxial layer is disposed over the substrate and doped to have the first conductivity type as well. The collector layer is selectively disposed over at least a portion of the first epitaxial layer and doped to have a second conductivity type. The second epitaxial layer is disposed over the collector layer and doped to have the first conductivity type. The light collection region collects photo-generated charge carriers and is disposed within the second epitaxial layer. The light collection region is also doped to have the second conductivity type.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: January 25, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventors: Vincent Venezia, Ashish Shah, Rongsheng Yang, Duli Mao, Yin Qian, Hsin-Chih Tai, Howard E. Rhodes
  • Patent number: 7875913
    Abstract: A transistor contact over a gate active area includes a transistor gate formed on a substrate of an integrated circuit. A gate insulator is formed beneath the transistor gate and helps define an active area for the transistor gate. An insulating layer is formed over the transistor gate. A metal contact plug is formed within a portion of the insulating layer that lies over the active area such that the metal contact plug forms an electrical contact with the transistor gate.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: January 25, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventor: Howard E. Rhodes
  • Patent number: 7872672
    Abstract: A method of automatic white balance for an image capture system is disclosed. The automatic white balance mechanism ascertains the illuminant source of an image by analyzing the number of white pixels within a predefined white area in a color space diagram. The automatic white balance mechanism also determines gain adjustments based on the evaluating the average RGB values to achieve white balance.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: January 18, 2011
    Assignee: OmniVision Technologies, Inc.
    Inventor: Ge Shi