Patents by Inventor Hisakazu Hitomi
Hisakazu Hitomi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9706110Abstract: The present technology includes: a recording unit that records a plurality of image data to be displayed, the plurality of image data imaged and obtained by the imaging apparatus; first image data for detecting foreign body information, the first image data acquired before imaging the plurality of image data to be displayed; second image data for detecting foreign body information, the second image data acquired after imaging the plurality of image data to be displayed; and a controller configured to read the plurality of image data to be displayed recorded in the recording unit, and to detect information relating to the foreign body from the plurality of image data.Type: GrantFiled: June 16, 2015Date of Patent: July 11, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hisakazu Hitomi, Yasuhiro Kuwahara, Hiromichi Ono
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Publication number: 20160028978Abstract: An imaging apparatus includes a pixel unit and an analog-to-digital (AD) converter unit which are divided into a first cluster and a second cluster. The first cluster includes a plurality of pixel columns including a first pixel column, and a plurality of AD converters corresponding to the respective pixel columns. The second cluster includes a plurality of pixel columns, a plurality of AD converters corresponding to the respective pixel columns, and an additional AD converter. The pixels of the first pixel column are coupled with both the AD converter and the additional AD converter.Type: ApplicationFiled: October 7, 2015Publication date: January 28, 2016Inventors: TIANYI YU, HISAKAZU HITOMI
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Publication number: 20150281571Abstract: The present technology includes: a recording unit that records a plurality of image data to be displayed, the plurality of image data imaged and obtained by the imaging apparatus; first image data for detecting foreign body information, the first image data acquired before imaging the plurality of image data to be displayed; second image data for detecting foreign body information, the second image data acquired after imaging the plurality of image data to be displayed; and a controller configured to read the plurality of image data to be displayed recorded in the recording unit, and to detect information relating to the foreign body from the plurality of image data.Type: ApplicationFiled: June 16, 2015Publication date: October 1, 2015Inventors: Hisakazu HITOMI, Yasuhiro KUWAHARA, Hiromichi ONO
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Patent number: 8542246Abstract: A color conversion device generates color data in a second color gamut based on first converted color data and input color data, which are obtained from input color data in a first color gamut, and outputs the color data in the second color gamut. The color conversion device includes a first color mapping unit which generates the first converted color data by mapping the input color data into the second color gamut; a color mixing unit which generates color data by mixing the first converted color data and second converted color data at a ratio corresponding to the first color gamut and the second color gamut; and a color data output unit which outputs the color data.Type: GrantFiled: March 11, 2009Date of Patent: September 24, 2013Assignee: Panasonic CorporationInventors: Katsuo Saigo, Hiroshi Miyai, Hisakazu Hitomi, Masanobu Inoe, Masahiro Kawashima, Akihiro Takeuchi
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Patent number: 8212836Abstract: The color management module includes a first color converter color-converting color information contained in an image signal having been input according to a three-dimensional LUT; an interpolator generating a synthetic image signal by synthesizing an image signal converted by the first color converter and an image signal having been input in an arbitrary ratio; and a second color converter color-converting color information on the synthetic image signal in the HSV space and outputting the color information.Type: GrantFiled: December 14, 2009Date of Patent: July 3, 2012Assignee: Panasonic CorporationInventors: Keizo Matsumoto, Masanobu Inoe, Hisakazu Hitomi
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Publication number: 20110012920Abstract: A color conversion device (100) according to the present invention generates color data (24) in a second color gamut based on first converted color data (22) and input color data (21), which are obtained from input color data (20) in a first color gamut, and outputs the color data (24) in the second color gamut, the color conversion device (100) including: a first color mapping unit (11) which generates the first converted color data (22) by mapping the input color data (21) into the second color gamut; a color mixing unit (12) which generates color data (23) by mixing the first converted color data (22) and second converted color data (25) at a ratio corresponding to the first color gamut and the second color gamut; and a color data output unit (13) which outputs the color data (23).Type: ApplicationFiled: March 11, 2009Publication date: January 20, 2011Applicant: PANASONIC CORPORATIONInventors: Katsuo Saigo, Hiroshi Miyai, Hisakazu Hitomi, Masanobu Inoe, Masahiro Kawashima, Akihiro Takeuchi
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Publication number: 20100091034Abstract: The color management module includes a first color converter color-converting color information contained in an image signal having been input according to a three-dimensional LUT; an interpolator generating a synthetic image signal by synthesizing an image signal converted by the first color converter and an image signal having been input in an arbitrary ratio; and a second color converter color-converting color information on the synthetic image signal in the HSV space and outputting the color information.Type: ApplicationFiled: December 14, 2009Publication date: April 15, 2010Applicant: PANASONIC CORPORATIONInventors: Keizo MATSUMOTO, Masanobu Inoe, Hisakazu Hitomi
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Patent number: 6697084Abstract: A tone display method which prevents degradation in image quality of moving images when the subfield method is utilized without an increase in cost. When tone display is performed with 256 tones with respect to one certain color, in each frame, segments 1 to 6 in time are set corresponding to the plural time-shared time bands of the color and each segment includes one or several subfields (sf). In each case, as the tone is increased by 42 (or 43) for segments 1 through 6, sequentially, the subfields in the segment being lit so that the tone is increased continuously.Type: GrantFiled: March 3, 2000Date of Patent: February 24, 2004Assignees: Texas Instruments Incorporated, Matsushita Electric Industrial Co. Ltd.Inventors: Hideki Ohmae, Hisakazu Hitomi, Adam J. Kunzman
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Patent number: 6275271Abstract: A tone display method is provided that can prevent image quality deterioration of the dynamic image and can avoid a cost increase. When an image with 256 tones is displayed, one field is divided into 37 subfields for one color. Among the 8 bits corresponding to the 256 tones, the six high-order bits from the third bit are displayed by means of time width modulation using 35 subfields SF3-SF37 having weights of ““4” and “8”. The two low-order bits are displayed on a binary base using two subfields SF1 and SF2 whose weights are “'1” and “2”, respectively.Type: GrantFiled: March 3, 2000Date of Patent: August 14, 2001Assignees: Matsushita Electric Industrial Co. Ltd., Texas Instruments IncorporatedInventors: Hisakazu Hitomi, Hideki Ohmae, Adam J. Kunzman
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Patent number: 5361103Abstract: The luminance signal-color signal separating circuit obtains signals of three lines by a 1H delaying circuit. Further, by unit delaying circuits, signals at three points are obtained in each line. Thus, signals at nine points continued vertically and horizontally are input into a color signal detecting circuit which determines an oblique correlation of the signals at these nine points to thereby obtain the degree of the color. The color signal detecting circuit obtains a color signal output having had the oblique luminance component removed by the operation of the color signal component from a three-line color separating circuit and the degree of the color.Type: GrantFiled: February 19, 1992Date of Patent: November 1, 1994Assignee: Kabushiki Kaisha ToshibaInventors: Hideyuki Naka, Hisakazu Hitomi
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Patent number: 4855627Abstract: A filter circuit for filtering an input signal including a DC component signal with a prescribed DC level and an AC component signal. The filter circuit includes a time constant circuit for imparting the input signal with prescribed frequency characteristics, the time constant circuit including a variable impedance device and a capacitor, and a control signal source for supplying a control signal for adjusting the impedance of the variable impedance device, the control signal source including a DC source for generating a DC control signal and a compensation source for generating a compensation signal equivalent to the AC component signal of the input signal.Type: GrantFiled: January 13, 1988Date of Patent: August 8, 1989Assignee: Kabushiki Kaisha ToshibaInventor: Hisakazu Hitomi
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Patent number: 4851719Abstract: An automatic adjustment circuit for adjusting the time constant of a filter circuit, which receives a reference signal having a predetermined voltage and a clock signal. The adjustment circuit includes an integration circuit for generating an integrated signal having a variable voltage level with periodic peak values, which includes a controllable current generating circuit, a capacitor coupled for charging a current from the controllable current generating circuit and a switch for alternately charging and discharging the capacitor in response to the clock signal, a comparator for comparing the peak value with the reference voltage and generating a control signal for adjusting the time constant of the filter circuit and a feedback circuit coupled between the comparator and the controllable current generating circuit for automatically controlling the control signal.Type: GrantFiled: August 26, 1988Date of Patent: July 25, 1989Assignee: Kabushiki Kaisha ToshibaInventor: Hisakazu Hitomi
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Patent number: 4717892Abstract: An emitter-coupled astable multivibrator capable of reducing a temperature drift of an oscillation frequency to zero is disclosed.Type: GrantFiled: September 24, 1986Date of Patent: January 5, 1988Assignee: Kabushiki Kaisha ToshibaInventor: Hisakazu Hitomi
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Patent number: 4600897Abstract: A resistor, together with a charging capacitor, is connected in series between the emitters of transistors to constitute an emitter-coupled astable multivibrator to be used with a voltage-controlled oscillator. The resistance of the resistor is given by:R.sub.a =(.tau..sub.d1 +.tau..sub.d2)/2C.sub.awhere C.sub.a is capacitance of the capacitor and (.tau..sub.d1 +.tau..sub.d2) is a delay time during one period of oscillation, as determined by the circuit elements.Type: GrantFiled: October 17, 1984Date of Patent: July 15, 1986Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Koga, Hisakazu Hitomi
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Patent number: 4596960Abstract: A current mirror circuit capable of accurately setting the ratio between input current and output current. The circuit includes a plurality of input terminals and a plurality of output terminals. A plurality of transistor pairs is provided with the first transistor of each pair having its collector connected to an input terminal. In addition, the collector of each first transistor in each pair is coupled to its own base. The bases of the transistors in each pair are coupled together, while the collector of the second transistor in each pair is coupled to an output terminal. The transistors connected to input terminals have their emitters coupled together and grounded through a first resistor. The transistors coupled to output terminals have their emitters coupled together and are grounded through a second resistor. Such a circuit allows ratios between input and output current to be set very accurately.Type: GrantFiled: March 26, 1984Date of Patent: June 24, 1986Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventor: Hisakazu Hitomi
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Patent number: 4492914Abstract: A temperature-compensating bias circuit for biasing a transistor circuit such as a multivibrator is disclosed. In the bias circuit, a series circuit formed of a first resistor and a parallel circuit consisting of a first circuit includes a second resistor and n diodes and a second circuit which includes a third resistor and m diodes, is connected between a power source line and a ground line. A voltage generated from a bias output terminal for driving the multivibrator has the effect of cancelling temperature drift of the multivibrator, and includes temperature drift represented by a temperature coefficient which varies according to the number of diodes in the first and second circuits.Type: GrantFiled: July 20, 1983Date of Patent: January 8, 1985Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventor: Hisakazu Hitomi