Patents Examined by Andrew Faile
  • Patent number: 5761370
    Abstract: A dual-deck VCR includes a delaying portion for delaying a color signal of 629 KHz reproduced from one deck by a horizontal scanning period, a color comb filter for removing crosstalk from the delayed color signal and a not-delayed color signal, a burst level processing portion for integrating the burst to output the integrated level of the burst and a color gain controller for controlling the amplitude of the color signal output from the color comb filter in response to the integrated level output from the burst level processing portion. The characteristics of the components of the dual-deck VCR are chosen so that crosstalk and a pickup noise generated from the non-uniformity of friction between head and tape are removed.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: June 2, 1998
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang-wook Kim
  • Patent number: 5757429
    Abstract: An automatic focusing apparatus includes a circuit to generate a focus evaluating value; a control unit for moving a focusing lens position so that the focus evaluating value attains the maximum value; four memories for respectively storing four successive focus evaluating values; and four memories for storing four position data of the focusing lens corresponding to the focus evaluating values. The automatic focusing apparatus further includes a circuit for calculating an amount of change of the focus evaluating value based on the focus evaluating values of the current and second last fields, a circuit for calculating an amount of change of the lens position corresponding thereto, and a circuit for calculating the rate of change of the focus evaluating value based on these amounts of change.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: May 26, 1998
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Toshinobu Haruki
  • Patent number: 5757431
    Abstract: A system for providing a printed output image including information from a data collection system onto a single print medium is disclosed. Data collection systems and methods are disclosed for collecting data from a plurality of spatially separated sources and for providing that data as a sequence of output signals. The data collection system includes a housing a selection element, one or more image paths and an image plane. The selection element selectively and alternatively couples visual images from separate object sources along the image paths and onto the image plane. The selection element may include optical shutters for selectively occluding or transmitting the visual images and may include illumination elements for providing a controlled sequence of illumination at selected ones of the object sources. The system can assemble the printed data in a format suitable for printing as an identification card.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: May 26, 1998
    Assignee: LAU Technologies
    Inventors: William C. Bradley, Mark L. Mesher
  • Patent number: 5757424
    Abstract: A system enables high-resolution videoconferencing images to be transmitted, without extreme demands on bandwidth. A mosaicing camera sequentially samples a series of small portions of a general scene, and a composite image of the entire general scene is transmitted. Simultaneously, an individual small area of the general scene where high time resolution is desirable is sampled at a high time resolution by a dedicated camera. The high-time-resolution images are then patched into the composite image.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: May 26, 1998
    Assignee: Xerox Corporation
    Inventor: Ronald A. Frederick
  • Patent number: 5757423
    Abstract: There is disclosed an image taking apparatus comprising a first optical unit for forming an image, a second optical unit positioned on the optical axis of the first optical unit, a third optical unit positioned behind the second optical unit and having plural lens units for re-focusing parts of the image of the first optical unit, converters for converting the plural images, formed by the third optical unit, into electrical signals, and a processor for processing the electrical signals from the converters in order to obtain an image of a high definition.
    Type: Grant
    Filed: October 19, 1994
    Date of Patent: May 26, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsunefumi Tanaka, Sadahiko Tsuji, Kenichi Shinbori, Shigeo Ogura, Makoto Sekita, Nobuhiro Takeda, Masashi Hori, Yasuyuki Yamazaki, Yoshihiro Honma, Masato Kosugi, Toshikazu Yanai
  • Patent number: 5757426
    Abstract: A photoelectric converter output processing system includes a photoelectric converter for converting light signals into electric output signals, a voltage storage device capable of storing a reference voltage, a voltage supply device that supplies a preset voltage, a control device that selectively couples the voltage supply device to the voltage storage device so that the voltage storage device is charged to the reference voltage when the photoelectric converter is generating one of the electric output signals and a reset reference signal, and an amplifier coupled to the photoelectric converter and the voltage storage device. The amplifier amplifies the photoelectric converter electric output signals based on the reference voltage stored in the voltage storage device. Thus, reliable CCD output amplification is achieved, starting with the first effective CCD sensor output cycle.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: May 26, 1998
    Assignee: Nikon Corporation
    Inventor: Fumiya Taguchi
  • Patent number: 5754956
    Abstract: A radiotelephone handset (120) includes an antenna (122) and receiver (124) for receiving a control channel from a plurality of base stations (102, 104, 106). A time division multiple access controller circuit (126) coupled to the receiver stores all received control channel information in a captured data buffer (134). Under control of a processor (128), the handset identifies as candidate suitable base stations those base stations having acceptable received signal strength, acceptable identity or system capability. From the candidates, the handset (120) chooses a suitable base station having acceptable signal quality, access rights and system capability and synchronizes communication with the suitable base station.
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: May 19, 1998
    Assignee: Motorola, Inc.
    Inventors: Victor M. Abreu, Raul A. Pombo, Paul D. Marko, David L.. Brown
  • Patent number: 5754226
    Abstract: An imaging apparatus includes: an imaging plate having a light receiving face; focusing device for focusing light from a subject on the light receiving face of the imaging plate as the image formed on the light receiving face; image position displacing device for displacing a position of the image formed by the focusing device with respect to a reference position; image position displacement control device for controlling the image position displacing device; motion vector detecting device for detecting a motion vector of each image with respect to a reference image; and image synthesis device for displacing pixels constituting each image and for interpolating the displaced pixels constituting each image between adjacent pixels of the reference image, thereby synthesizing the images into a single image.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: May 19, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Eiji Yamada, Tetsuo Iwaki
  • Patent number: 5754229
    Abstract: An image sensor device capable of snap shot color applications comprising an array of image registers for converting the light from successive image frame exposures into indicative charge packets, and an array of light-shielded storage registers interspersed in regular displacements among the array of image registers for receiving the transfer of the charge packets from adjacent image registers over multiple image frame exposures, whereby, for example, red, green, and blue color image frames can be rapidly acquired upon the opening of a flash exposure shutter, and very rapidly transferred in parallel into the storage registers from which the three frames can be read out as a color image when the shutter is closed.
    Type: Grant
    Filed: November 14, 1995
    Date of Patent: May 19, 1998
    Assignee: Lockheed Martin Corporation
    Inventor: Hammam Elabd
  • Patent number: 5754223
    Abstract: An image speed indicator displayed in a monitor to be used as an aid during the filming process with a video camera and monitor or a film camera being used with a video assist unit. The indicator can be adjusted to move at a selected speed horizontally and/or at a selected speed vertically. When both horizontal and vertical non-zero speeds are set the marker will move at an angle across the monitor. The apparatus displays and saves the speed setting so that it can be reproduced at later time Therefore shots recorded at different times can be shot with the marker set on a desired scene object and the camera panned at the same speed and angle or wholly horizontally or vertically.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: May 19, 1998
    Inventor: Mark Telemachus John Palmos
  • Patent number: 5751350
    Abstract: This invention relates to an electronic still camera to image a desired object through an imaging device, and provides a continuous-shot means with large-capacity recording. When image data RAW retrieved through predetermined imaging means 20 is data processed to record on a recording medium 10, the buffer memory 40 with high speed is provided which stores image data RAW temporarily.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: May 12, 1998
    Assignee: Sony Corporation
    Inventor: Satomi Tanaka
  • Patent number: 5751348
    Abstract: A movie camera having: a strobe light for illuminating a subject; a shutter speed switching circuit for changing speeds of a shutter for the charge coupled device (CCD); a white balance switching circuit for adjusting the balance between color signals; an automatic gain control (AGC) circuit for adjusting amplifying gain for an image signal; a control circuit for energizing the shutter speed switching circuit so that a flash of the strobe light is terminated within the storing time of the CCD by changing the shutter speed to a higher speed, for energizing the white balance switching circuit so that the white balance is adjusted to coincide with the color temperature of the strobe light, and for fixing the gain of the AGC circuit.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: May 12, 1998
    Assignee: Fuji Photo Film Company, Ltd.
    Inventors: Masafumi Inuiya, Yoshiaki Nakayama
  • Patent number: 5751779
    Abstract: A general absolute value circuit for developing a true, symmetric or bipolar, absolute value output signal from an input charge signal, compact enough to be used on a sensor chip incorporated into (or used in combination with) a pixel processor of the type used in imaging and other systems that collect electromagnetic radiation as part of on-chip circuitry, includes a balanced differential amplifier combined with a merged dual shelf transistor structure. The balanced differential amplifier, in response to an input charge signal, drives the merged dual shelf transistor structure which in turn generates the desired true absolute value output signal. Such circuitry may be used in imaging systems to implement focal-plane processing algorithms or may be used for performing a single read true absolute value computation by a pixel processor located on a sensor chip. The merged dual shelf transistor structure enhances performance and speed of the processor in which it is incorporated.
    Type: Grant
    Filed: June 27, 1995
    Date of Patent: May 12, 1998
    Assignee: Lockheed Martin Corporation
    Inventor: Michael Paul Weir
  • Patent number: 5751892
    Abstract: A multi-scene recording disk and a data reproducing apparatus, which enables a user to select and enjoy one of simultaneously proceeding scenes, and also enables a program editor to edit programs using a new concept and novel fashion. Related program movements, each consisting of program bars, are recorded on the disk 100. The data reproducing apparatus includes a data string processing section 203, a system control section 204, an operator panel 205, a video processing section 206, and audio processing sections 211 and 213. The sections 203 and 204 and the panel 205 select any one of the program movements and switch one movement to another, and select any one of the program bars of the movement selected and switch one bar to another. The information thus selected is supplied to the video processing section 206 and the audio processing sections 211 and 213.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: May 12, 1998
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koichi Hirayama, Masatoshi Nakai, Kenji Shimoda
  • Patent number: 5751354
    Abstract: A digital electronic camera has a first stroke switch and a second stroke switch. When the first stroke switch is pressed, adjustment of focus, coarse adjustment of exposure and detection of light-source flicker are detected using a signal from an image sensing device such as a CCD. When the second stroke switch is pressed, main exposure is performed in accordance with the conditions that have been set. Thus, adjustment of focus and exposure can be performed by relying solely upon the image sensing device and without using various sensors. Moreover, processing is completed in a short period of time by the second stroke switch, which is pressed following the first stroke switch. As a result, focus and exposure adjustments can be carried out in a short period of time using solely an image sensing device without relying upon a rangefinder sensor and photometric sensor, and release time lag can be reduced.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: May 12, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masao Suzuki, Saburo Nakazato
  • Patent number: 5751352
    Abstract: An exposure control device of a still-video camera has a CCD and a photoreceptor element for sensing a photometry value of an object. First, the camera is aimed at the main object in such a manner that the main object is positioned in the center of the frame, and a first photometry value is obtained. Then, the aim of the camera is changed so that the main object is offset from the center of the frame, and a second photometry value is obtained. A provisional exposure is carried out in accordance with an aperture value and an electric charge accumulating time which are obtained based on the second photometry value, and thus an exposure value is obtained. A ratio of the proper exposure value and the provisional exposure value is obtained. A normal exposure is carried out in accordance with the aperture value and a normal electric charge accumulating time TT=T.times.(E0/E2).times.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: May 12, 1998
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventor: Kimiaki Ogawa
  • Patent number: 5751189
    Abstract: A charge amplifier with DC offset canceling for use in a pixel element of an MOS image sensor is disclosed. The charge amplifier can be manufactured using a standard CMOS single polycrystalline process, making it much more cost effective than prior art designs. The charge amplifier includes an operational amplifier, a source capacitor, a series capacitor, and a feedback capacitor. The source capacitor holds the input signal. The output of the operational amplifier provides the output signal. Switches control the routing of the signal flow from the source capacitor, the series capacitor, and the feedback capacitor.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: May 12, 1998
    Assignee: OmniVision Technologies, Inc.
    Inventors: Tai-Ching Shyu, Datong Chen, Jun Liu
  • Patent number: 5752175
    Abstract: The device includes a first frequency synthesizer loop with fractional division to a apply a first wide frequency band transposition signal to an input of the first mixing stage of the receiver, a second phase-lock frequency synthesizer loop to apply a second narrow frequency band transposition signal to an input of the second mixer stage of the receiver and a common frequency source coupled to the first loop and to the second loop for the application, to their reference inputs, of a frequency reference signal. Application to wideband (20 MHz to GHz) V/UHF receivers.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: May 12, 1998
    Assignee: Thomson-CSF
    Inventors: Andre Roullet, Daniel Peris
  • Patent number: 5751890
    Abstract: A magnetic type recording and reproducing apparatus comprises means for extracting by a first head and a second head a plurality of pilot signal components and means for finding an error for control of tracking with using a proper pilot signal component in accordance with a data rate of signals.The magnetic type recording and reproducing apparatus controls a recording tape speed in accordance with the data rate of signals, controls a playback tape speed in accordance with a high playback speed and the data rate, and arranges high speed playback data in areas which are to be traced by both heads during a playback with a plurality of data rates.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: May 12, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tatsuo Yamasaki, Masako Asamura, Sadayuki Inoue, Junko Shinohara, Ken Onishi
  • Patent number: 5748830
    Abstract: A color signal processor is provided for removing a leakage component from a harmonic wave of a color signal, which causes crosstalk on a screen when a video signal is reproduced from or recorded on a recording medium. To remove the leakage component of the color signal an additional main converter having the same function as that of an existing main converter, a 1H delay and a subtracter are added to a conventional color signal processor. A 180.degree. phase-inverted signal, generated by delaying a signal in the 1H delay, is subtracted from the signal output from the existing main converter, thereby outputting a pure color signal which does not include a leakage component due to the harmonic wave, thereby providing an excellent quality picture.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: May 5, 1998
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Soon-mo Jang