Patents Examined by Mark Monk
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Patent number: 8023013Abstract: A method of pixel correction is disclosed. The method generally includes the steps of (A) calibrating a per-pixel correction model of a sensor at a plurality of different illumination levels, (B) generating a plurality of pixel values from the sensor in response to an optical signal and (C) generating a plurality of corrected values by applying the per-pixel correction model to the pixel values.Type: GrantFiled: March 28, 2007Date of Patent: September 20, 2011Assignee: Ambarella, Inc.Inventors: Elliot N. Linzer, Leslie D. Kohn
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Patent number: 8023025Abstract: A photoelectric conversion apparatus includes photoelectric conversion elements configured to convert incident light to electric carriers, amplifier sections configured to read signals based on the electric carriers generated in the photoelectric conversion elements, transfer sections configured to transfer electric carriers in the photoelectric conversion elements to input units of the amplifier sections, and voltage supply sections configured to set potentials of the input units, arranged in a two-dimensional array. The photoelectric conversion apparatus further includes output lines configured to read signals from the amplifier sections and voltage supply lines configured to supply voltages to the voltage supply sections. Out of the output lines and the voltage supply lines, only one output line and one voltage supply line related to a first photoelectric conversion element are disposed between the first photoelectric conversion element and an adjacent second photoelectric conversion element.Type: GrantFiled: July 2, 2007Date of Patent: September 20, 2011Assignee: Canon Kabushiki KaishaInventors: Tetsuya Itano, Takanori Watanabe
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Patent number: 8018494Abstract: A color correction device (1) including: color set information storage portions (11) which store color set information inclusive of source colors and reference colors; region selection portions (6) which select specific source regions from source images picked up by two cameras 2 respectively; region color decision portions (7) which decide source region colors as colors representative of the source regions; color set update portions (10) which update source colors in color sets by using the source region colors; and color correction portions (8) which calibrate colors in ranges similar to the source colors in the two source images to reference colors by using the color sets. It is possible to eliminate the necessity of holding information of color sets unnecessary for color correction, so that it is possible to reduce the load imposed on calculation and adapt to a change of lighting environment in real time.Type: GrantFiled: January 5, 2007Date of Patent: September 13, 2011Assignee: Panasonic CorporationInventors: Sumio Yokomitsu, Hiromichi Sotodate, Hailin Yan, Chak Joo Lee
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Patent number: 8018515Abstract: There is provided a solid-state imaging device with an improved linearity as well as dynamic range. Each pixel portion Pm,n in the solid-state imaging device includes: a buried photodiode PD for generating charges of an amount corresponding to the intensity of incident light; a capacitive element C connected in parallel to the buried photodiode PD to accumulate charges generated in the buried photodiode PD; an amplifying transistor T1 for outputting a voltage value corresponding to a voltage value input to the gate terminal; a transferring transistor T2 for inputting a voltage value corresponding to the amount of accumulated charges in the capacitive element C to the gate terminal of the amplifying transistor T1; a discharging transistor T3 for discharging the charges of the capacitive element C; and a selecting transistor T4 for selectively outputting a voltage value output from the amplifying transistor T1 to a wiring Ln.Type: GrantFiled: February 2, 2006Date of Patent: September 13, 2011Assignee: Hamamatsu Photonics K.K.Inventors: Harumichi Mori, Kazuki Fujita, Ryuji Kyushima, Masahiko Honda, Seiichiro Mizuno
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Patent number: 8013927Abstract: Solid-state image sensors are disclosed that include one or more pixels formed on a semiconductor substrate. Each pixel includes a photoelectric converter to convert light to an electric signal, and a microlens above the photoelectric converter. The microlens has a plan profile in which the direct distance from a center to a lens edge is variable. The microlens has first base regions and second base regions not including the first base regions. The first base regions are provided near n positions (n being a natural number) of the lens edge from which the direct distance is relatively long. The vertical height of the first base regions from an upper surface of the photoelectric converter is less than the vertical height of the second base regions from the upper surface of the photoelectric converter.Type: GrantFiled: May 17, 2006Date of Patent: September 6, 2011Assignee: Nikon CorporationInventor: Toru Takagi
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Patent number: 8009224Abstract: It is possible to improve a response of a dynamic range expansion processing. The present image signal processing method includes a first step (ST2) of extracting distribution parameters from a distribution of pixel signal levels composing an image signal of one picture, a second step (ST4, ST5) of determining a target value (BP1, BP2, etc.) of a break point based on extracted distribution parameters for a break point at which an inclination of an image signal level changes with respect to a cumulative change of amount of incident light upon pixels of the imaging portion changes, and a third step (ST6, ST7) of controlling the imaging portion so as to obtain a target value and change an output saturation characteristic of the image signal.Type: GrantFiled: December 15, 2006Date of Patent: August 30, 2011Assignee: Kyocera CorporationInventor: Hidetoshi Umeda
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Patent number: 7978239Abstract: A method and apparatus for capturing image data from multiple image sensors and generating an output image sequence are disclosed. The multiple image sensors capture data with one or more different characteristics, such as: staggered exposure periods, different length exposure periods, different frame rates, different spatial resolution, different lens systems, and different focal lengths. The data from multiple image sensors is processed and interleaved to generate an improved output motion sequence relative to an output motion sequence generated from an a single equivalent image sensor.Type: GrantFiled: March 1, 2007Date of Patent: July 12, 2011Assignee: Eastman Kodak CompanyInventors: Aaron T. Deever, Kenneth A. Parulski, John R. Fredlund, Majid Rabbani, Andrew F. Kurtz, Joseph A. Manico
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Patent number: 7956923Abstract: A mobile terminal has an image corrector which includes a comparator for receiving a first image signal photographed by a camera in a camera mode and a second image signal displayed in a normal mode, and for comparing them with a reference signal to generate a deviation signal, and a corrector for receiving the deviation signal from the comparator, and for supplying the first or second image signal, in which white balancing and gamma are corrected, in response to the deviation signal so that luminance and white balance of the first image signal displayed in the camera mode become equal to or similar to luminance and white balance of the second image signal displayed in the normal mode.Type: GrantFiled: February 15, 2006Date of Patent: June 7, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventor: Eun-Jung Oh
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Patent number: 7956902Abstract: An imaging device determines whether, in an image captured by an imaging unit, straight lines exist which meet a condition of automatic vertical line determination (S14). If straight lines meeting the condition exist (YES in S15), the imaging device performs a vertical line determination process to extract vertical lines and so on (S16). On LCD, the imaging device displays the vertical lines extracted in S16 together with auxiliary lines including one connecting a calculated vanishing point and a target point (S17). The imaging device detects its inclination based on these lines including the vertical lines, and displays a message of “OK” on LCD when the inclination is within a predetermined range to notify a user to that effect. Thus, without increasing the manufacturing cost, the imaging device can prevent a user from capturing a target object while the imaging device is inclined to the horizontal direction in an image space.Type: GrantFiled: June 27, 2008Date of Patent: June 7, 2011Assignee: Funai Electric Co., Ltd.Inventor: Hiroki Matsubara
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Patent number: 7956905Abstract: An apparatus for giving a title to a captured image includes a unit for storing a captured image group including a plurality of captured images, a unit for storing an image capturing time when each of the stored images is captured, a unit for judging an image capturing period and an image capturing season including the stored image capturing time, a unit for storing terms respectively related to a plurality of periods with different time widths each of which includes a period and a season, the term corresponding to the period and the season, and a unit for giving a title to the stored captured image group by using a term related to a period of a wider time width out of the stored terms as a difference between the image capturing time and either the image capturing season or the acquired output time, whichever is longer.Type: GrantFiled: February 17, 2006Date of Patent: June 7, 2011Assignee: Fujifilm CorporationInventors: Shuji Ono, Akira Yoda
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Patent number: 7952637Abstract: A display apparatus in which a long-time depression of a button for predetermined operations is discriminated, and a light-intensity of a display apparatus is modulated to a maximum or minimum intensity when a long-time depression is identified. This allows for setting a light intensity of a display apparatus by a simple operation.Type: GrantFiled: February 15, 2006Date of Patent: May 31, 2011Assignee: Canon Kabushiki KaishaInventor: Hirotaka Seki
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Patent number: 7948545Abstract: A solid-state imaging device as defined herein, in which each of the signal reading circuits for reading the detection signals of the first-color pixels includes three transistors which are a reset transistor, a row selection transistor, and an output transistor; and each of the signal reading circuits for reading the detection signals of the second-color pixels and each of the signal reading circuits for reading the detection signals of the third-color pixels include four transistors which are a read transistor, a reset transistor, a row selection transistor, and an output transistor.Type: GrantFiled: June 6, 2007Date of Patent: May 24, 2011Assignee: FUJIFILM CorporationInventor: Nobuo Suzuki
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Patent number: 7944474Abstract: An image pickup apparatus which includes a camera shake correction mechanism and determines exposure conditions including at least a shutter speed in response to brightness of an image pickup object, including acquisition means, decision means, and setting means. The acquisition means is configured to acquire a focal distance of a lens for converging an optical image of the image pickup object. The decision means is configured to decide a camera shake limit shutter speed corresponding to the acquired focal distance. The setting means is configured to set, where the camera shake correction mechanism is valid, a shutter speed lower than the camera shake limit shutter speed by an amount corresponding to a predetermined difference in exposure value to one end of a setting range of the shutter speed of the exposure condition.Type: GrantFiled: February 12, 2007Date of Patent: May 17, 2011Assignee: Sony CorporationInventor: Toshiki Ono
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Patent number: 7932942Abstract: A solid-state imaging device is provided and has: three photoelectric conversion layers stacked above a semiconductor substrate 1, each detecting a different color; three signal charge accumulators in a semiconductor substrate for accumulating signal charges generated in each of the three photoelectric conversion layers: and a signal readout circuit in the semiconductor substrate for reading out signals corresponding to the signal charges accumulated in the signal charge accumulators. The three signal charge accumulators are arranged in a direction in the surface of the semiconductor substrate as a pixel and a plurality of the pixels are arranged in a square lattice pattern both in the direction and a direction perpendicular thereto. The three signal charge accumulators arranged in each pixel in an odd row are arranged such that an array of the signal charge accumulators in the first sub-row of each pixel has all of the three signal charge accumulators.Type: GrantFiled: February 14, 2006Date of Patent: April 26, 2011Assignee: Fujifilm CorporationInventors: Tomoki Inoue, Atsuhiko Ishihara
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Patent number: 7929049Abstract: In the imaging apparatus of the invention, a camera assembly 200 including a camera 202 is mounted on and supported by a base 110 in a pivotally rotatable manner in a vertical direction to allow tilting motions of the camera 202. First through fourth rollers 141 through 144 provided in an assembly fixation structure 114 of the base 110 support the camera assembly 200 to allow pivotal rotation of the camera assembly 200. The driving force of a tilting motor 160 built in a pedestal plate unit 130 of the assembly fixation structure 114 is transmitted to frame side faces of the camera assembly 200 via a tilting worm gear shaft 170 and a tilting rotation gear 172 to allow the tilting motions of the camera frame 200. This arrangement of the invention enables further downsizing of the whole imaging apparatus applied to, for example, a security camera.Type: GrantFiled: February 26, 2007Date of Patent: April 19, 2011Assignee: Elmo Company, LimitedInventors: Akira Yamane, Eiji Sugiyama
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Patent number: 7911524Abstract: A photographing apparatus and a still image photographing method thereof are provided where the photographing apparatus includes a lens for forming an optical image of a subject in an image pickup unit; an image pickup unit for photoelectrically converting the optical image formed through the lens to an electrical image signal, a signal processing unit for processing the photo-electrically converted image signal to a luminance signal and a color signal, a compression unit for compressing the processed image signal, and a storage unit for storing the compressed image signal, the image pickup unit comprising two vertical transmission registers for accumulating an image of an even filed and an image of an odd field in a memo. Accordingly, a clear still image can be obtained without an iris diaphragm.Type: GrantFiled: June 7, 2007Date of Patent: March 22, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Sung-jin Kim
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Patent number: 7898583Abstract: An image processing device includes: a frequency divider for performing a frequency division processing of dividing an input image into a plurality of frequency components each having a frequency band; a noise remover for performing a noise component removal processing of removing a noise component from a high frequency component in the frequency components each having the frequency band obtained by the frequency division processing by the frequency divider; an edge preservation information calculator for detecting an edge intensity based on a low frequency component in the frequency components each having the frequency band obtained by the frequency division processing by the frequency divider, and calculating edge preservation information relating to a degree of preserving an edge component based on the detected edge intensity; an edge preserving section for preserving the edge component in the high frequency component, based on the edge preservation information calculated by the edge preservation informatiType: GrantFiled: July 2, 2007Date of Patent: March 1, 2011Assignee: Konica Minolta Holdings, Inc.Inventors: Junya Wakahara, Kazuchika Sato, Koichi Kamon
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Patent number: 7868922Abstract: An implementation efficient method of distinguishing between foreground and background regions of a digital image of a scene includes capturing two images of nominally the same scene and storing the captured images in DCT-coded format. The first image is taken with the foreground more in focus than the background and the second image is taken with the background more in focus than the foreground. Regions of the first image are assigned as foreground or background according to whether the sum of selected higher order DCT coefficients decreases or increases for the equivalent regions of the second image.Type: GrantFiled: August 21, 2006Date of Patent: January 11, 2011Assignee: Tessera Technologies Ireland LimitedInventors: Mihai Ciuc, Adrian Zamfir, Adrian Capata, Peter Corcoran, Eran Steinberg
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Patent number: 7864230Abstract: An inspection apparatus for inspecting a microarray comprises an image sensor for imaging the microarray, a moving means for moving the image sensor relative to the microarray, a memory for memorizing the position of a defective picture element on the image sensor, and a controlling means which determines an overlap state of an imaging area of the defective picture element on reaction areas on the microarray and controls the moving means based on the result of the determination.Type: GrantFiled: July 30, 2007Date of Patent: January 4, 2011Assignee: Canon Kabushiki KaishaInventor: Norio Sugita
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Patent number: 7864241Abstract: A lens barrel includes: a lens frame retaining at least one portion of the plurality of lens groups; a first lens cylinder supporting the lens frame inside thereof and including a plurality of cam followers on an outer circumferential section thereof; and a second lens cylinder including a mutually parallel plurality of cam grooves in an inner circumferential section thereof and storing the first lens cylinder therein in the collapsed state, the plurality of cam grooves are engaged with the plurality of cam followers and configured to advance and retire the first lens cylinder in a direction of an optical axis by a relative rotation of the first lens cylinder, the plurality of cam grooves have a first cam grooves and a second cam grooves, the plurality of cam followers have a first cam follower and a second cam follower, the first cam follower and the second cam follower are engaged with the first cam grooves and the second cam grooves, respectively, and the first cam follower and the second cam follower areType: GrantFiled: October 17, 2006Date of Patent: January 4, 2011Assignee: Ricoh Company, Ltd.Inventor: Tetsuya Iwasaki