Patents by Inventor Eiichiro Tomonaga
Eiichiro Tomonaga 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: 7995146Abstract: According to one embodiment, an image processing apparatus includes a scaling converter, a luminance histogram detector, a determination module, and a super resolution processor. The scaling converter converts a first image signal to a second image signal having more pixels. The luminance histogram detector detects a luminance histogram. The determination module determines whether the second image signal includes a graphics image based on the luminance histogram. The super resolution processor converts the second image signal to a third image signal with a higher resolution than that of the second image signal, and performs sharpening based on the reference gain. When the second image signal includes a graphics image, the super resolution processor sets the gain of sharpening below the reference gain.Type: GrantFiled: September 16, 2009Date of Patent: August 9, 2011Assignee: Kabushiki Kaisha ToshibaInventor: Eiichiro Tomonaga
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Patent number: 7817209Abstract: A buffer delays an input luminance signal by a 1-frame period. A screen unit motion detection section determines whether an image indicated by the input luminance signal is a moving image or a static image by a screen unit, and outputs a gradual determination result from the static image to the moving image. A subtracter outputs a differential signal obtained by subtracting the input luminance signal from the luminance signal delayed by the 1-frame period. A pixel unit motion detector detects motion of a pixel unit and outputs a detection result by using a plurality of level values within a predetermined range. A limiter limits the differential signal in accordance with the determination result of the screen unit motion detector. An adder adds an output signal of the multiplier and the input luminance signal together.Type: GrantFiled: August 30, 2006Date of Patent: October 19, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Eiichiro Tomonaga, Himio Yamauchi
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Publication number: 20100214472Abstract: According to one embodiment, an image processing apparatus includes a scaling converter, a luminance histogram detector, a determination module, and a super resolution processor. The scaling converter converts a first image signal to a second image signal having more pixels. The luminance histogram detector detects a luminance histogram. The determination module determines whether the second image signal includes a graphics image based on the luminance histogram. The super resolution processor converts the second image signal to a third image signal with a higher resolution than that of the second image signal, and performs sharpening based on the reference gain. When the second image signal includes a graphics image, the super resolution processor sets the gain of sharpening below the reference gain.Type: ApplicationFiled: September 16, 2009Publication date: August 26, 2010Applicant: Kabushiki Kaisha ToshibaInventor: Eiichiro Tomonaga
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Patent number: 7742472Abstract: A signal processing apparatus includes, a receiving unit which receives a stream includes compression-encoded data via a network, the stream being formed by packets to which time stamps are respectively added, a generating unit which generates a first stream from the stream received by the receiving unit, based on the time stamps added to the packets in the stream received by the receiving unit to output the first stream from an output port, a selector to which has a first port that receives the first stream output from the output port and a second port that receives a second stream including compression-encoded data and being transmitted in real time from outside, the selector selecting one of the first stream input to the first port and the second stream input to the second port, and a decoding unit which decodes the one stream selected by the selector.Type: GrantFiled: December 13, 2005Date of Patent: June 22, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Eiichiro Tomonaga, Masahiro Yamada
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Publication number: 20100066712Abstract: According an aspect of the invention, a video processing apparatus including: a sensor configured to measure an illuminance level; and a processing unit configured to receive a video signal and perform a gamma correction processing on the video signal to correct luminance of the video signal by using a correction value for the illuminance level so that the correction value becomes smaller as the illuminance level gets larger.Type: ApplicationFiled: April 14, 2009Publication date: March 18, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Eiichiro TOMONAGA
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Publication number: 20080239151Abstract: According to one embodiment, a video signal processing apparatus has a scaling processing unit configured to perform scaling processing on a video signal, an expansion processing unit configured to perform expansion processing on a video signal, and a switching unit configured to switch whether the scaling processing unit uses a video signal after being expanded by the expansion processing unit or uses the video signal before being expanded by the expansion processing unit according to a resolution of the video signal inputted to the expansion processing unit.Type: ApplicationFiled: March 12, 2008Publication date: October 2, 2008Applicant: Kabushiki Kaisha ToshibaInventors: Eiichiro Tomonaga, Toshiyuki Namioka
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Publication number: 20070046825Abstract: A buffer delays an input luminance signal by a 1-frame period. A screen unit motion detection section determines whether an image indicated by the input luminance signal is a moving image or a static image by a screen unit, and outputs a gradual determination result from the static image to the moving image. A subtracter outputs a differential signal obtained by subtracting the input luminance signal from the luminance signal delayed by the 1-frame period. A pixel unit motion detector detects motion of a pixel unit and outputs a detection result by using a plurality of level values within a predetermined range. A limiter limits the differential signal in accordance with the determination result of the screen unit motion detector. An adder adds an output signal of the multiplier and the input luminance signal together.Type: ApplicationFiled: August 30, 2006Publication date: March 1, 2007Inventors: Eiichiro Tomonaga, Himio Yamauchi
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Publication number: 20060197880Abstract: According to one embodiment, a reproduction control unit receives a time stamped stream TTS via a network. A TTS processing unit generates a real time stream TS from the TTS on the basis of the time stamp added to each packet of packets in the TTS. A decode unit decodes the TTS, and outputs video data and audio data in real time. A demultiplexer has a buffer which temporarily records the TTS provided from the reproduction control unit, and provides the TTS recorded in the buffer to the TTS processing unit and provides the same to the decode unit. As a result, the stream received from the network is transmitted and recorded to an external device in real time, and at the same time, the stream is reproduced in real time by a display device or the like.Type: ApplicationFiled: March 3, 2006Publication date: September 7, 2006Inventors: Eiichiro Tomonaga, Masahiro Yamada
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Publication number: 20060140183Abstract: A signal processing apparatus includes, a receiving unit which receives a stream includes compression-encoded data via a network, the stream being formed by packets to which time stamps are respectively added, a generating unit which generates a first stream from the stream received by the receiving unit, based on the time stamps added to the packets in the stream received by the receiving unit to output the first stream from an output port, a selector to which has a first port that receives the first stream output from the output port and a second port that receives a second stream including compression-encoded data and being transmitted in real time from outside, the selector selecting one of the first stream input to the first port and the second stream input to the second port, and a decoding unit which decodes the one stream selected by the selector.Type: ApplicationFiled: December 13, 2005Publication date: June 29, 2006Inventors: Eiichiro Tomonaga, Masahiro Yamada
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Patent number: 6373904Abstract: A digital broadcast receiving device includes a first processor for extracting added information, a storage device for storing the added information, and a second processor having a low power consumption mode and a normal power mode, for effecting the circuit control for the watching and listening operation according to a preset program and the added information. The first processor informs the second processor that the added information is extracted, the second processor changes the mode thereof to the normal power mode when it is informed from the first processor that the added information is extracted while it is set in the low power consumption mode in the standby state, writes the added information extracted by the first processor into the storage device, and changes the mode thereof into the low power consumption mode after completion of the write operation.Type: GrantFiled: July 21, 1998Date of Patent: April 16, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Noriya Sakamoto, Masahiro Yamada, Atsushi Hirota, Natsuki Koshiro, Eiichiro Tomonaga, Tsukasa Kudo