Patents by Inventor Nobuhiro Hoshi

Nobuhiro Hoshi 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).

  • Publication number: 20110134316
    Abstract: The image signal of each pixel of a frame image is multiplied by a gain value set in advance for each coordinate position on a display screen, generating a display frame image in which the luminance value becomes smaller for a pixel closer to the periphery of the display screen and larger for a pixel closer to the center. The image signal of each pixel of a subframe image is multiplied by a gain value set in advance for each coordinate position on the display screen, generating a display subframe image in which the luminance value becomes larger for a pixel closer to the periphery of the display screen and smaller for a pixel closer to the center of the display screen. The display frame image and display subframe image are sequentially displayed.
    Type: Application
    Filed: November 19, 2010
    Publication date: June 9, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takahiro Oguchi, Nobuhiro Hoshi
  • Patent number: 7924817
    Abstract: The tuner unit of a digital broadcast receiving apparatus receives a digital broadcast and generates a data stream from a digital broadcast signal having a desired modulation frequency. A data stream of a digital broadcast is also input from an external digital broadcast receiving apparatus via an external I/F. A stream switching unit and demultiplexer play back the content on a desired channel, contained in the two data streams, on an image display unit in real time, and at the same time, store the content on the other channel, contained in the other data stream, in a storage unit. This makes it possible to watch one of at least two programs with different modulation frequencies while recording the other program.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: April 12, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoyuki Ohno, Nobuhiro Hoshi, Nobuharu Ichihashi
  • Patent number: 7791759
    Abstract: An image processing method includes the steps of detecting the dynamic range of input image data, performing edge enhancement processing to increase the number of grayscale levels of the input image data, and performing dithering processing to reduce the number of grayscale levels of each pixel of the input image data. The number of pseudo grayscale levels is determined based on a parameter indicating the level of the dynamic range and a parameter indicating the level of the edge enhancement processing.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: September 7, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobuhiro Hoshi
  • Patent number: 7787055
    Abstract: A signal processing method comprises the steps of: inputting three signals specifying a color of one pixel; and generating four signals from the input three signals, wherein each of said four signals represents intensities of four different colors to display a color of one pixel by mixing colors, wherein said generating step includes a first converting step of converting the input three signals to two signals representing intensities of two colors among the four colors and a signal representing intensity of a mixed color obtained by mixing (a) the four colors or (b) a plurality of colors among the four colors; and a second converting step of converting the signal representing intensity of the mixed color to a plurality of signals representing intensities of a plurality of colors including at least other two colors different from the two colors.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: August 31, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Seiji Osawa, Yukio Hiraki, Izumi Kanai, Kohei Inamura, Masaru Tada, Nobuhiro Hoshi
  • Patent number: 7742190
    Abstract: An image processing method includes the steps of detecting a dynamic range of input image data, performing resolution conversion processing to increase the number of grayscale levels of the input image data, and performing dithering processing to reduce the number of grayscale levels of each pixel of the input image data. The number of pseudo grayscale levels in the dithering processing is determined, based on a parameter indicating the level of the dynamic range and a parameter concerning the resolution conversion processing.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: June 22, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobuhiro Hoshi
  • Patent number: 7643677
    Abstract: In the image display device according to the present invention, control is performed such that a condition of not using a subsidiary pixel which corresponds to a specific color among the subsidiary pixels constituting a first pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the first pixel, and a condition of using a subsidiary pixel which corresponds to a specific color among the subsidiary pixel constituting a second pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the second pixel adjacent to the first pixel in the first direction.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: January 5, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukio Hiraki, Izumi Kanai, Kohei Inamura, Seiji Osawa, Masaru Tada, Nobuhiro Hoshi
  • Patent number: 7379624
    Abstract: An image processing method includes the steps of performing resolution conversion processing on input image data to increase the number of grayscale levels, performing edge enhancement processing to increase the number of grayscale levels of the input image data, and performing dithering processing to reduce the number of grayscale levels of each pixel of the input image data. The number of pseudo grayscale levels is determined, based on a combination of a parameter concerning the resolution conversion processing and a parameter indicating the level of the edge enhancement processing.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: May 27, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobuhiro Hoshi
  • Patent number: 7197231
    Abstract: A recording apparatus includes an input device for inputting a television signal and channel information relating to the television signal from an external receiving apparatus which receives the television signal and generates the channel information, a recording device for recording the television signal, and a controller for controlling the recording device based on the channel information input by the input device.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: March 27, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuhiro Hoshi, Nobuharu Ichihashi, Tomoyuki Ohno
  • Publication number: 20070052861
    Abstract: A signal processing method comprises the steps of: inputting three signals specifying a color of one pixel; and generating four signals from the input three signals, wherein each of said four signals represents intensities of four different colors to display a color of one pixel by mixing colors, wherein said generating step includes a first converting step of converting the input three signals to two signals representing intensities of two colors among the four colors and a signal representing intensity of a mixed color obtained by mixing (a) the four colors or (b) a plurality of colors among the four colors; and a second converting step of converting the signal representing intensity of the mixed color to a plurality of signals representing intensities of a plurality of colors including at least other two colors different from the two colors.
    Type: Application
    Filed: August 31, 2006
    Publication date: March 8, 2007
    Applicant: Canon Kabushiki Kaisha
    Inventors: Seiji Osawa, Yukio Hiraki, Izumi Kanai, Kohei Inamura, Masaru Tada, Nobuhiro Hoshi
  • Publication number: 20060209097
    Abstract: In the image display device according to the present invention, control is performed such that a condition of not using a subsidiary pixel which corresponds to a specific color among the subsidiary pixels constituting a first pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the first pixel, and a condition of using a subsidiary pixel which corresponds to a specific color among the subsidiary pixel constituting a second pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the second pixel adjacent to the first pixel in the first direction.
    Type: Application
    Filed: March 16, 2006
    Publication date: September 21, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yukio Hiraki, Izumi Kanai, Kohei Inamura, Seiji Osawa, Masaru Tada, Nobuhiro Hoshi
  • Publication number: 20060193604
    Abstract: A recording apparatus includes an input device for inputting a television signal and channel information relating to the television signal from an external receiving apparatus which receives the television signal and generates the channel information, a recording device for recording the television signal, and a controller for controlling the recording device based on the channel information input by the input device.
    Type: Application
    Filed: May 8, 2006
    Publication date: August 31, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventors: Nobuhiro Hoshi, Nobuharu Ichihashi, Tomoyuki Ohno
  • Publication number: 20060039361
    Abstract: The tuner unit of a digital broadcast receiving apparatus receives a digital broadcast and generates a data stream from a digital broadcast signal having a desired modulation frequency. A data stream of a digital broadcast is also input from an external digital broadcast receiving apparatus via an external I/F. A stream switching unit and demultiplexer play back the content on a desired channel, contained in the two data streams, on an image display unit in real time, and at the same time, store the content on the other channel, contained in the other data stream, in a storage unit. This makes it possible to watch one of at least two programs with different modulation frequencies while recording the other program.
    Type: Application
    Filed: August 23, 2005
    Publication date: February 23, 2006
    Inventors: Tomoyuki Ohno, Nobuhiro Hoshi, Nobuharu Ichihashi
  • Patent number: 6961511
    Abstract: The tuner unit of a digital broadcast receiving apparatus receives a digital broadcast and generates a data stream from a digital broadcast signal having a desired modulation frequency. A data stream of a digital broadcast is also input from an external digital broadcast receiving apparatus via an external I/F. A stream switching unit and demultiplexer play back the content on a desired channel, contained in the two data streams, on an image display unit in real time, and at the same time, store the content on the other channel, contained in the other data stream, in a storage unit. This makes it possible to watch one of at least two programs with different modulation frequencies while recording the other program.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: November 1, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoyuki Ohno, Nobuhiro Hoshi, Nobuharu Ichihashi
  • Publication number: 20050105115
    Abstract: An image processing method includes the steps of detecting a dynamic range of input image data, performing resolution conversion processing to increase the number of grayscale levels of the input image data, and performing dithering processing to reduce the number of grayscale levels of each pixel of the input image data. The number of pseudo grayscale levels in the dithering processing is determined, based on a parameter indicating the level of the dynamic range and a parameter concerning the resolution conversion processing.
    Type: Application
    Filed: November 15, 2004
    Publication date: May 19, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Nobuhiro Hoshi
  • Publication number: 20050105114
    Abstract: An image processing method includes the steps of detecting the dynamic range of input image data, performing edge enhancement processing to increase the number of grayscale levels of the input image data, and performing dithering processing to reduce the number of grayscale levels of each pixel of the input image data. The number of pseudo grayscale levels is determined based on a parameter indicating the level of the dynamic range and a parameter indicating the level of the edge enhancement processing.
    Type: Application
    Filed: November 15, 2004
    Publication date: May 19, 2005
    Applicant: Canon Kabushiki Kaisha
    Inventor: Nobuhiro Hoshi
  • Publication number: 20050105818
    Abstract: An image processing method includes the steps of performing resolution conversion processing on input image data to increase the number of grayscale levels, performing edge enhancement processing to increase the number of grayscale levels of the input image data, and performing dithering processing to reduce the number of grayscale levels of each pixel of the input image data. The number of pseudo grayscale levels is determined, based on a combination of a parameter concerning the resolution conversion processing and a parameter indicating the level of the edge enhancement processing.
    Type: Application
    Filed: November 15, 2004
    Publication date: May 19, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Nobuhiro Hoshi
  • Patent number: 6879768
    Abstract: There is provided information processing apparatus/method featured by selecting the desired packets from input stream data containing plural packets multiplexed on time-division basis, counting the number of packets other than the desired packets in the input stream data, and recording, on a recording medium, the data of the desired packets and the information data indicating the number of the counted packets.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: April 12, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenichiro Ono, Nobuhiro Hoshi
  • Patent number: 6438167
    Abstract: An encoding apparatus including a block forming unit for dividing an input signal into blocks each consisting of a plurality of sample values, an orthogonal conversion unit for orthogonally converting the input signal blocks, a detection unit for detecting the characteristic of each block in accordance with orthogonal conversion coefficients obtained by the orthogonal conversion unit, a selection unit for selecting optimal quantization parameters which can realize a constant code amount obtained when the input signal blocks are encoded in a unit consisting of a plurality of input signal blocks, a changing unit for changing the quantization parameters selected by the selection unit in accordance with an output from the detection unit, and an encoding unit for encoding the orthogonal conversion coefficients from the orthogonal conversion unit using the quantization parameters changed by the changing unit.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: August 20, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Shimizu, Nobuhiro Hoshi, Toshihiko Suzuki, Yukinori Yamamoto
  • Patent number: 6304990
    Abstract: An image processing apparatus comprises a receiving device for receiving encoded image data which is encoded by using orthogonal transform in a predetermined block unit, an error detecting device for detecting a transmission error of the encoded image data, a correcting device for correcting the transmission error in the predetermined block unit, and a decoding device for decoding the encoded image data and outputting image data for reproducing an image. The image processing apparatus satisfactorily controls the amount of compressed data and prevents a deterioration of image quality even if any error occurs on a transmission path, thereby reproducing good image quality.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: October 16, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Shikakura, Nobuhiro Hoshi, Yushi Kaneko
  • Publication number: 20010028782
    Abstract: The tuner unit of a digital broadcast receiving apparatus receives a digital broadcast and generates a data stream from a digital broadcast signal having a desired modulation frequency. A data stream of a digital broadcast is also input from an external digital broadcast receiving apparatus via an external I/F. A stream switching unit and demultiplexer play back the content on a desired channel, contained in the two data streams, on an image display unit in real time, and at the same time, store the content on the other channel, contained in the other data stream, in a storage unit. This makes it possible to watch one of at least two programs with different modulation frequencies while recording the other program.
    Type: Application
    Filed: March 27, 2001
    Publication date: October 11, 2001
    Inventors: Tomoyuki Ohno, Nobuhiro Hoshi, Nobuharu Ichihashi