Patents by Inventor Toshihisa Hyakudai

Toshihisa Hyakudai 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: 20190014285
    Abstract: This technology is to enable high quality audio reproduction on the reception side without supplying a transmission clock using a clock signal line from the reception side to the transmission side. The transmission apparatus receives encoded data capable of clock recovery from a reception apparatus (external device), generates an audio clock on the basis of a carrier clock recovered from the encoded data, and transmits audio data to the reception apparatus in synchronization with the audio clock. The reception apparatus transmits the encoded data capable of clock recovery to the external device in synchronization with the carrier clock generated on the basis of an self-generating audio clock, receives the audio data from the transmission apparatus (external device), and processes the audio data on the basis of the self-generating audio clock.
    Type: Application
    Filed: March 16, 2017
    Publication date: January 10, 2019
    Applicant: SONY CORPORATION
    Inventors: Kazuaki TOBA, Toshihisa HYAKUDAI
  • Publication number: 20180351648
    Abstract: [Object] It is desired to provide a technology capable of suppressing deterioration over time due to a specific signal oscillator being intensively used, even in a case where the number of transmission paths used changes. [Solution] Provided is a sending control apparatus including: a transmission path determination section configured to determine, from a plurality of transmission paths connected to different sending sections, respectively, one or more sending transmission paths configured to transmit one or a plurality of transmission object signals, respectively, obtained from sending data, on a basis of the number of sending transmission paths and prescribed information; and a sending control section configured to control the sending section connected to the sending transmission path so that the transmission object signal is sent via the sending transmission path.
    Type: Application
    Filed: September 12, 2016
    Publication date: December 6, 2018
    Inventors: TOSHIHISA HYAKUDAI, TOSHIYUKI MIYAUCHI
  • Patent number: 10142027
    Abstract: A communication device of the disclosure includes: a first terminal that outputs a power supply voltage; a second terminal coupled directly or indirectly to the first terminal; a communication section that operates on a basis of the power supply voltage to communicate with a communication peer; and a communication controller that sets the communication section to be in an ON state or in an OFF state on a basis of a voltage on the second terminal.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: November 27, 2018
    Assignee: Sony Corporation
    Inventors: Toshihisa Hyakudai, Masanari Yamamoto
  • Publication number: 20180338125
    Abstract: [Object] It is desired to provide a technology capable of suppressing the production cost of a system in which a video signal is transmitted via a plurality of transmission paths. [Solution] Provided is a frame generation apparatus including: an image division section configured to, in a case where a horizontal-direction pixel number in a video signal is set to integers of 0 to N?1 and a vertical-direction line number in the video signal is set to integers of 0 to M?1, perform an operation of dividing a pixel group included in a line of which the vertical-direction line number is 2m and a pixel group included in a line of which the vertical-direction line number is (2m+1) on a basis of color format information of the video signal, for all integers m satisfying 0?m?(M/2)?1, and thereby obtain a plurality of divided signals; and a frame generation section configured to generate a plurality of frames individually including the plurality of divided signals.
    Type: Application
    Filed: September 14, 2016
    Publication date: November 22, 2018
    Inventors: TOSHIHISA HYAKUDAI, KAZUAKI TOBA
  • Publication number: 20180324468
    Abstract: [Object] In a case where a video signal is divided and transmitted from a transmitter to a receiver via a plurality of transmission paths, the power consumption required by at least either one of the transmitter and the receiver is reduced. [Solution] Provided is a frame generation apparatus including: an image division section configured to divide a video signal into high-order bits and low-order bits for each pixel element; a frame generation section configured to generate a first frame including the high-order bits and a second frame including the low-order bits; and a transmission operation control section configured to cause an operation of a transmission section of transmitting the second frame to a receiver to stop in a case where information regarding the receiver is prescribed information.
    Type: Application
    Filed: August 18, 2016
    Publication date: November 8, 2018
    Inventors: TOSHIHISA HYAKUDAI, KAZUAKI TOBA
  • Publication number: 20180260013
    Abstract: [Object] To provide a communication device, an information processing device, and a communication method. [Solution] A communication device including: a detector configured to detect an optical signal and convert the optical signal to an electric signal; a data processing unit configured to process the electric signal converted by the detector to acquire data; and a controller configured to control an operating state including a standby state in which the data processing unit is deactivated to reduce power consumption and an active state in which the data processing unit is capable of executing acquisition of the data on a basis of the optical signal detected by the detector, in which the detector detects the optical signal in the standby state.
    Type: Application
    Filed: September 21, 2016
    Publication date: September 13, 2018
    Applicant: SONY CORPORATION
    Inventors: RYOHEI TAKAHASHI, KAZUAKI TOBA, TOSHIHISA HYAKUDAI, HIROSHI MORITA
  • Publication number: 20180249121
    Abstract: [Object] It is desired to provide a technology in which a video audio signal and a control signal can be transmitted via a connector even if the vertical direction of the connector is reversed. [Solution] Provided is a frame generation apparatus including: a first frame generation section configured to generate one or more video audio frames from a video audio signal by a format having a prescribed data capacity as a frame unit; and a second frame generation section configured to generate one or more control frames from a control signal by a format having the same data capacity as the prescribed data capacity as a frame unit.
    Type: Application
    Filed: August 4, 2016
    Publication date: August 30, 2018
    Inventors: TOSHIHISA HYAKUDAI, KAZUAKI TOBA
  • Publication number: 20180076899
    Abstract: A communication device of the disclosure includes: a first terminal that outputs a power supply voltage; a second terminal coupled directly or indirectly to the first terminal; a communication section that operates on a basis of the power supply voltage to communicate with a communication peer; and a communication controller that sets the communication section to be in an ON state or in an OFF state on a basis of a voltage on the second terminal.
    Type: Application
    Filed: March 3, 2016
    Publication date: March 15, 2018
    Inventors: Toshihisa Hyakudai, Masanari Yamamoto
  • Publication number: 20180076986
    Abstract: A transmitting device of the disclosure includes a plurality of transmitters each of which includes a scrambler that performs a scrambling process on transmission data by using random data generated on the basis of an initial value and that transmits the transmission data on which the scrambling process has been performed. An initial value of a first scrambler in a first transmitter is different from an initial value of a second scrambler in a second transmitter, and the first transmitter and the second transmitter belongs to the plurality of transmitters.
    Type: Application
    Filed: March 3, 2016
    Publication date: March 15, 2018
    Inventors: Toshihisa Hyakudai, Takashi Yokokawa
  • Publication number: 20180041286
    Abstract: A communication device includes a transmitter configured to generate a data signal, and a controller configured to stop an operation of the transmitter in response to an optical transmission stop instruction. The optical transmission stop instruction preferably has a predetermined bit pattern.
    Type: Application
    Filed: April 12, 2016
    Publication date: February 8, 2018
    Inventors: Toshihisa Hyakudai, Masanari Yamamoto, Takeshi Ogura, Tsugita Komatsu, Hiroshi Morita, Gen Ichimura
  • Publication number: 20180006850
    Abstract: Communication devices, communication systems and communication methods that implement transmission lane information are disclosed. In one example, circuitry is configured to receive transmission lane information from each of a plurality of reception lanes and to generate physical lane correspondence information based on the received transmission lane information, wherein the transmission lane information identifies a plurality of transmission lanes of a device that transmitted the transmission lane information. The physical lane correspondence information indicates a correspondence relationship between the plurality of transmission lanes and the plurality of reception lanes.
    Type: Application
    Filed: February 18, 2016
    Publication date: January 4, 2018
    Inventor: Toshihisa HYAKUDAI
  • Publication number: 20180006716
    Abstract: There are provided a communication device, a communication system, and a communication method. A communication device includes a first receiver configured to receive a data signal and generate a level control signal based on an initial level of the data signal and on an error rate of the data signal; and a transmitter configured to transmit the level control signal.
    Type: Application
    Filed: April 6, 2016
    Publication date: January 4, 2018
    Inventors: Toshihisa Hyakudai, Masanari Yamamoto
  • Patent number: 8350969
    Abstract: An electronic apparatus is provided and includes a first IC having an internal configuration section, a nonvolatile memory, and an interface section. The electronic apparatus also includes a second IC having a signal processing section, and a correction-data supplying section.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: January 8, 2013
    Assignee: Sony Corporation
    Inventors: Toshihisa Hyakudai, Mitsuru Ikeda, Norihiro Murayama, Kazuya Nakamura, Masatomo Miyashita, Kohei Yamamoto
  • Patent number: 8264617
    Abstract: Disclosed herein is an analog television broadcast signal receiving apparatus including: a tuner section configured to convert an analog television broadcast signal into a predetermined intermediate frequency band signal; a demodulation circuit section configured to obtain a picture output signal and a sound intermediate frequency signal from the predetermined intermediate frequency band signal coming from the tuner section; a picture processing circuit section configured to convert the picture output signal into a display-ready picture signal; a sound demodulation processing circuit section configured to demodulate the sound intermediate frequency signal; and a control section.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: September 11, 2012
    Assignee: Sony Corporation
    Inventors: Tsutomu Takamori, Toshihisa Hyakudai, Nobuaki Tsuchiya, Gerd Spalink
  • Patent number: 7933349
    Abstract: An OFDM receiver may include OFDM-signal receiving means for receiving an orthogonal frequency division multiplexing signal, channel-characteristic estimating means for estimating a channel characteristic, time-direction-channel estimating means used for the estimation of a channel characteristic, judging means for judging a result of the estimation of a time direction channel, switching control means for switching presence or absence of the estimation of a time direction channel in accordance with a result of the judgment on the result of the estimation of a time direction channel, and transmission-distortion compensating means for applying processing for compensating for transmission distortion to the OFDM frequency domain signal received by the OFDM-signal receiving means and subjected to the Fast Fourier Transform.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: April 26, 2011
    Assignee: Sony Corporation
    Inventors: Hidetoshi Kawauchi, Toshihisa Hyakudai
  • Patent number: 7889802
    Abstract: A demodulator includes a complex conjugate signal generator to generate a complex conjugate signal of an OFDM time domain signal (complex signal including an I channel signal and Q channel signal) supplied from an orthogonal demodulation circuit, a delaying unit to delay, by an integral multiple of a predetermined period 1H or 2H, the complex conjugate signal supplied from the complex conjugate signal generator, a complex multiplier to make complex multiplication on the basis of the complex signal generated by the orthogonal demodulation circuit and complex conjugate signal delayed by the integral multiple of the predetermined period by the delay unit, and a determining unit to determine whether an interference wave is included in the modulated signal by making a comparison between the complex multiplication value resulted from the complex multiplication made by the complex multiplier and an arbitrary threshold.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: February 15, 2011
    Assignee: Sony Corporation
    Inventors: Taku Yamagata, Toshihisa Hyakudai, Shigenari Kawabata
  • Patent number: 7701841
    Abstract: An orthogonal frequency division multiplexing (OFDM) demodulating apparatus includes a delay profile creating section, a Fourier converting section, a pilot signal extracting section, a transmission path characteristic estimating section, an inverse Fourier converting section, and a window control section. In this case, the window control section creates a delay profile for defining a calculation range by leaving a path which exists at a same position in both the delay profiles created by the delay profile creating section and the inverse Fourier converting section and the number of times of detection which is equal to or higher than a threshold value and defines a higher threshold value for the path at a predetermined position from the position of the main path within the delay profile created by the inverse Fourier converting section than for the paths at the other positions.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: April 20, 2010
    Assignee: Sony Corporation
    Inventors: Hidetoshi Kawauchi, Toshihisa Hyakudai, Takuya Okamoto, Atsushi Yajima, Taku Yamagata, Kazutaka Yamamoto, Shigenari Kawabata
  • Publication number: 20090251617
    Abstract: An electronic apparatus is provided and includes a first IC having an internal configuration section, a nonvolatile memory, and an interface section. The electronic apparatus also includes a second IC having a signal processing section, and a correction-data supplying section.
    Type: Application
    Filed: March 6, 2009
    Publication date: October 8, 2009
    Applicant: SONY CORPORATION
    Inventors: Toshihisa HYAKUDAI, Mitsuru IKEDA, Norihiro MURAYAMA, Kazuya NAKAMURA, Masatomo MIYASHITA, Kohei YAMAMOTO
  • Publication number: 20090244384
    Abstract: Disclosed herein is an analog television broadcast signal receiving apparatus including: a tuner section configured to convert an analog television broadcast signal into a predetermined intermediate frequency band signal; a demodulation circuit section configured to obtain a picture output signal and a sound intermediate frequency signal from the predetermined intermediate frequency band signal coming from the tuner section; a picture processing circuit section configured to convert the picture output signal into a display-ready picture signal; a sound demodulation processing circuit section configured to demodulate the sound intermediate frequency signal; and a control section.
    Type: Application
    Filed: March 30, 2009
    Publication date: October 1, 2009
    Inventors: Tsutomu TAKAMORI, Toshihisa HYAKUDAI, Nobuaki TSUCHIYA, Gerd SPALINK
  • Publication number: 20080192844
    Abstract: A demodulator includes a complex conjugate signal generator to generate a complex conjugate signal of an OFDM time domain signal (complex signal including an I channel signal and Q channel signal) supplied from an orthogonal demodulation circuit, a delaying unit to delay, by an integral multiple of a predetermined period 1H or 2H, the complex conjugate signal supplied from the complex conjugate signal generator, a complex multiplier to make complex multiplication on the basis of the complex signal generated by the orthogonal demodulation circuit and complex conjugate signal delayed by the integral multiple of the predetermined period by the delay unit, and a determining unit to determine whether an interference wave is included in the modulated signal by making a comparison between the complex multiplication value resulted from the complex multiplication made by the complex multiplier and an arbitrary threshold.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 14, 2008
    Applicant: Sony Corporation
    Inventors: Taku Yamagata, Toshihisa Hyakudai, Shigenari Kawabata