Patents Examined by Andrew Christensen
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Patent number: 6798448Abstract: An imaging apparatus can obtain a high quality still picture imaging signal in the all pixels read out mode and output it by means of an output processing means adapted to the interlaced read out mode. The imaging signal read out from a CCD image sensor 23 in the interlaced read out mode is directly supplied to a DV recording/reproducing processing section 4 by way of a camera signal processing circuit 24. The imaging signal read out from said CCD image sensor 23 in the apparatus is converted into an interlaced signal by a scan conversion section 3A, which is then supplied to the DV recording/reproducing processing section 4.Type: GrantFiled: July 20, 1999Date of Patent: September 28, 2004Assignee: Sony CorporationInventors: Chihiro Motono, Koji Okumoto, Toshitaka Yoshihiro, Masaya Nakatani, Masatoshi Sase, Hidehiko Teshirogi, Seishin Asato
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Patent number: 6798453Abstract: For accomplishing increase in S/N ratios, improvement in operability, and decrease of cost, a photoelectric conversion device comprises: a photoelectric conversion portion comprising a plurality of photoelectric conversion pixels arranged in row and column directions, a plurality of signal wires wired in the column direction, each of the signal wires connecting outputs of photoelectric conversion pixels arranged in the same column, and a plurality of control lines wired in the row direction, each of the control lines connecting control terminals for controlling signal output operation of photoelectric conversion pixels arranged in the same row; a plurality of analog memory means for storing analog voltages obtained from analog voltage conversion means for converting information charges based on the photoelectric conversion pixels to the analog voltages and for maintaining the analog voltages as outputs, each of the analog memory means being connected to each of the signal wires; and a plurality of A/D conversType: GrantFiled: November 16, 1998Date of Patent: September 28, 2004Assignee: Canon Kabushiki KaishaInventor: Noriyuki Kaifu
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Patent number: 6798446Abstract: A calibration system activates all or a majority of a display with the same value, such as with the same color. The camera is pointed at the display, but doesn't have to precisely pick up the whole display. The computer compares the pixel information received in the camera photosensor, and can store an appropriate correction factor. Not only does the user not have to precisely position the camera, jitter due to use hand movement is not a problem since this smoothes out the color information from the various pixels on the display, and actually improves the calibration. A target can be provided on the display to indicate if the user is properly pointing the camera at the display.Type: GrantFiled: July 9, 2001Date of Patent: September 28, 2004Assignee: Logitech Europe S.A.Inventor: Sergio Maggi
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Patent number: 6795118Abstract: An image sensor testing system is described. The system includes a differencing element, first and second comparators, and a counter. The differencing element is arranged to provide a difference value between a given pixel value and a pixel stream value. The first comparator operates to compare the difference value with at least one tolerance value. The counter is configured to increment a count when the difference value exceeds at least one tolerance value. The second comparator is configured to indicate a sensor as having failed if the count exceeds at least one threshold value.Type: GrantFiled: October 18, 2000Date of Patent: September 21, 2004Assignee: Micron Technology, Inc.Inventor: Kwang-Bo Cho
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Patent number: 6795122Abstract: A focal-plane shutter for digital still cameras includes a first blade and a second blade, each having a plurality of arms and at least one blade component pivotally supported thereby; a driving member for the first blade, opening an exposure aperture through the first blade; a driving member for the second blade, closing the exposure aperture through the second blade; a retaining means for the first blade and a retaining means for the second blade, retaining individual driving members at positions where the exposure operation is started, immediately before the exposure operation is started, and releasing their retaining forces at preset timing when the exposure operation is started; and a cocking member for actuating the driving member for the second blade when moved from the initial position to the cocked position thereof, and actuating the driving member for the first blade in photography.Type: GrantFiled: July 12, 2001Date of Patent: September 21, 2004Assignee: Nidec Copal CorporationInventor: Shigemi Takahashi
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Patent number: 6791604Abstract: An electronic camera of the present invention includes a paper exit opening for removal of printed paper provided on the upper surface of the case of the camera main body, a protection sheet having a base end fixed to the inside of the paper exit opening, with a free end revertible to a wound-up roll shape retracted inside the case, and capable of being extended by the front end of the printed paper when the printed paper is transported from the case to the outside so that the protection sheet covers the photosensitive surface of the paper, and an open-and-close lid having one end edge axially supported to be rotatable to the case so that the paper exit opening is closed from the outside of the case when the protection sheet is retracted within the case. Further, the protection sheet includes a linking mechanism for linking the protection sheet to the open-and-close lid so that the open-and-close lid is opened or closed interlocked with a movement of the protection sheet.Type: GrantFiled: July 21, 2000Date of Patent: September 14, 2004Assignees: Polaroid Corporation, Olympus Optical Company, Ltd.Inventors: Chin-Loo Lama, Hiroyuki Sakayauchi, Tatsutoshi Hashimoto
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Patent number: 6791617Abstract: A distance detecting device comprising an optical system, a pair of image sensors having a plurality of pixels which receives light flux from a photographic subject through said optical system, a distance calculator which calculates the distance to a photographic subject 3 from the image information of a region of the image sensors, and an posture detector detects the posture of the distance detecting device, wherein the distance to a photographic subject is detected from image information of the measurement region which is set such that the length of the region in the vertical direction is longer than the length in the horizontal direction relative to the normal ground surface and in accordance with the posture of the distance detecting device.Type: GrantFiled: March 24, 1999Date of Patent: September 14, 2004Assignee: Minolta Co., Ltd.Inventor: Kenji Nakamura
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Patent number: 6791616Abstract: An image lens distortion correcting method having step (A) for printing an arbitrary image I1 in a computer; step (B) for photographing the printed image I1 with a camera having a lens distortion and obtaining a photographed image I2 in the computer; step (C) for obtaining a parameter &thgr; such that the image I1 is artificially distorted with the parameter &thgr; and an obtained distorted image I1ud equals with the photographed image 2; and step (D) for using the obtained parameter &thgr; to correct the image photographed by the camera. Thereby, (1) no correspondence point needs to be given, (2) no special tool or object is used, and (3) all points on the image are used, so that an internal parameter can automatically be obtained with high precision, and image lens distortion can be corrected with high precision.Type: GrantFiled: July 13, 2001Date of Patent: September 14, 2004Assignee: RikenInventors: Toru Tamaki, Tsuyoshi Yamamura, Noboru Ohnishi
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Patent number: 6788337Abstract: In a television voice control system which controls voices obtained through a plurality of microphones (14a to 14n) coincidentally with an image pick up by a television camera (11) to be displayed as a scene on a screen, the television voice control system has a calculating unit 12 and a microphone control unit 13 which adjust and control the voices obtained through a plurality of microphones (14a to 14n) by interlocking an image pick up condition of the television camera (11) so that the voices be adapted to the scene.Type: GrantFiled: March 1, 1999Date of Patent: September 7, 2004Assignee: NEC CorporationInventor: Koujyu Fujii
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Patent number: 6784937Abstract: The present invention discloses a lens assembly comprising an enclosure, annular rotating means, gear assembly, spring, leaf spring, cap, and lens. The enclosure has a housing and haft. The housing has a lower hole for supporting the image capture apparatus, and an upper hole, which is consisted of three slope sets. Each slope set has a sub-slope and a main slope, the main slopes of the slope sets having a same gradient and being in a same height at highest points or lowest points of the main slopes. The annular rotating means having three extrusive portions is connected to the slope sets of enclosure. The gear assembly, which is supported by the haft of enclosure and connected with the annular rotating means, is applied for driving the annular rotating means. The spring is mounted on the first inner rim of the upper surface of the annular rotating means. The leaf spring is placed on the second inner rim of the upper surface of the annular rotating means.Type: GrantFiled: July 22, 1999Date of Patent: August 31, 2004Assignee: Nu-Cam CorporationInventor: Nai-Sim Goh
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Patent number: 6784929Abstract: A programmable two-dimensional timing generator according to the invention employs a clock generator (102) and a user-defined two-stage waveform generator (106, 108). A single static random access memory (SRAM) (112) stores a user-defined waveform control word for both waveform generator control units. The SRAM data is entered via the host controller external data bus. A single waveform control word may be used to control both waveform generators.Type: GrantFiled: August 20, 1999Date of Patent: August 31, 2004Assignee: Infineon Technologies North America Corp.Inventor: Tai-Ming Chen
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Patent number: 6784941Abstract: A digital camera with video input is disclosed. An image sensor is provided to capture an image and convert the captured image into R/G/B image signals the are processed by a video signal processing unit for being converted into pixel data having a first format. A TV decoder converts input analog video signals into pixel data having a second format. A scaling unit performs aspect ratio processing and zoom/pan function to pixel data. A TV interface unit converts pixel data having the second format into pixel data having the first format for being selectively output to the scaling unit directly and output to the scaling unit after transferring to the video signal processing unit for performing edge enhancement. A compressing and storage unit performs compress operation to the pixel data output from the video signal processing unit and the scaling unit. An USB unit converts pixel data after being compressed into serial data for output.Type: GrantFiled: August 9, 2000Date of Patent: August 31, 2004Assignee: Sunplus Technology Co., Ltd.Inventors: Te-Sung Su, Jiann-Jong Tsai
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Patent number: 6784939Abstract: A method for automatically controlling an exposure time in image sensor having a pixel array includes the steps of producing total pixel value of the green pixels from the pixel array, producing a mean value of the green pixels dividing the total pixel value of the green pixels by the number of the green pixels, producing a deviation value, wherein the deviation value is an absolute value of a difference between the mean value and a predetermined reference value, comparing the deviation value with a predetermined boundary value, in case where the deviation value is smaller than the predetermined boundary value, capturing a next image according to a current exposure time, and in case where the deviation value is larger than the predetermined boundary value, calculating an exposure control rate and determining whether an automatic exposure control mode is enabled, and in case where the automatic exposure control mode is disabled, capturing the next image according to the current exposure time, and in case whereType: GrantFiled: October 28, 1999Date of Patent: August 31, 2004Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Suk-Joong Lee, Gyu-Tae Hwang
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Patent number: 6784928Abstract: A solid state image pickup device has a drive unit with an all pixel drive mode for reading all pixels in a horizontal direction and a pixel skip drive mode for reading pixels in the horizontal direction by skipping some pixels, and a plurality of read-out systems for reading pixels. In the all pixel drive mode, signals of pixels are divisionally read by the plurality of read-out systems, and in the pixel skip drive mode, signals of pixels are read by one of the plurality of read-out systems. In this manner, in the pixel skip drive mode, the power consumption can be reduced and a difference between output signal levels to be caused by a variation in characteristics of elements of the read-out system can be suppressed.Type: GrantFiled: December 15, 1998Date of Patent: August 31, 2004Assignee: Canon Kabushiki KaishaInventors: Katsuhito Sakurai, Shigetoshi Sugawa, Isamu Ueno, Katsuhisa Ogawa, Toru Koizumi, Tetsunobu Kochi, Hiroki Hiyama
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Patent number: 6781623Abstract: A hand-held device comprising a housing (10) shaped and dimensioned to allow the device to be hand held, a display (12) secured to the housing for displaying moving pictures on a frame-by-frame basis, and a camera (16, 18) having an optical axis (O) extending generally away from the display to image a person who is viewing the display. The hand-held device further comprises a sensor (20) configured to determine a rotational angle between an alignment axis (V) of the hand-held device and a reference alignment axis in real space. Alternative embodiments use a reference alignment axis obtained on the basis of data content of the images, as determined by image processing techniques. In this way, subjective picture quality can be improved by compensating for vertical mis-alignment of the image content of the frames obtained by the camera.Type: GrantFiled: July 13, 2000Date of Patent: August 24, 2004Assignee: Texas Instruments IncorporatedInventor: David Thomas
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Patent number: 6781629Abstract: The digital camera and the image reproducing apparatus and method can reduce a waiting time when a compressed image recorded in a recording medium is reproduced and displayed on a display device, and allows the user to promptly check the reproduced image. Before the user inputs an instruction for sequential or reverse frame feeding, image data is beforehand read out from a recording medium, decompressed, and held in a memory inside the digital camera as prepared images for display. When the instruction for the frame feeding is given, the corresponding prepared image is read out from the memory and then output to the liquid crystal monitor, thereby reducing the reproduction time to achieve fast reproduction. A range of the image which is subjected to a preceding read is a frame image before or after the currently displayed frame, all thumbnail images stored in the recording medium, all main images stored in the recording medium, or all of main images and the thumbnail.Type: GrantFiled: September 24, 2001Date of Patent: August 24, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Yasuharu Ohnogi
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Patent number: 6781625Abstract: First and second noise detecting circuits detect whether image data output from a signal processing circuit includes noise. If the image data includes noise, first and second noise reducing circuits reduce the noise. An edge extracting circuit extracts edge data from the first image data in which noise has been reduced. An adding circuit adds the edge data and second image data, which has been output by the second noise reducing circuit, and outputs the resultant data. Even though edge enhancement is applied, noise is not enhanced but noise is reduced.Type: GrantFiled: March 14, 2003Date of Patent: August 24, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Kenkichi Hayashi
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Patent number: 6781628Abstract: A solid-state image pickup device includes image pickup means having at least two sensor arrays disposed so as to be adjacent to each other, and horizontal charge transfer means having at least two horizontal registers which are disposed so as to be adjacent to the image pickup means and provided in association with the at least two sensor arrays respectively. A method of driving the solid-state image pickup device transfers the charges picked up at the respective pixels of the sensor arrays to the corresponding horizontal registers. After all the charges picked up at the respective pixels of the sensor arrays are transferred to the horizontal registers, the charges are successively transferred in the horizontal direction.Type: GrantFiled: November 25, 1998Date of Patent: August 24, 2004Assignee: Sony CorporationInventors: Satoshi Yoshihara, Masahide Hirama
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Patent number: 6781622Abstract: An apparatus for detecting a deviation of a camera as a result of a shaking. The apparatus includes a shaking detector which detects a deviation of the camera from shaking based upon an output of at least two pairs of acceleration sensors which are located on different axes of the camera coordinates. A calculator calculates tilt angles of each of the axes from outputs of the pairs of the acceleration sensors.Type: GrantFiled: June 28, 1999Date of Patent: August 24, 2004Assignee: Ricoh Company, Ltd.Inventors: Yasuhiro Sato, Takashi Kitaguchi
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Patent number: 6781624Abstract: To realize low noise and chip area reduction, a signal processing apparatus including a signal source, an arithmetic circuit for performing an arithmetic operation, and a non-inverting output circuit for outputting a signal from the arithmetic circuit which includes at least a transfer circuit for transferring a signal from the signal source to the non-inverting output circuit, and a difference signal formation circuit for forming a difference signal obtained by subtracting a signal from the non-inverting output circuit from the signal from the signal source.Type: GrantFiled: July 23, 1999Date of Patent: August 24, 2004Assignee: Canon Kabushiki KaishaInventor: Hidekazu Takahashi