Patents by Inventor Takashi Yokokawa

Takashi Yokokawa 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: 20190215100
    Abstract: A master includes a transmission/reception unit which transmits/receives a signal to/from a slave, and an error detection unit which detects error occurrence by performing parity check to data received by the transmission/reception unit. Then, the error detection unit performs error detection assuming one bit of 2-bit parity included in the data received by the transmission/reception unit as even parity, and the other bit as odd parity. The present technology can be applied to a bus IF which performs communication in compliance with, for example, an I3C standard.
    Type: Application
    Filed: May 2, 2017
    Publication date: July 11, 2019
    Inventors: Hiroo Takahashi, Takashi Yokokawa, Sonfun Lee, Naohiro Koshisaka
  • Publication number: 20190213070
    Abstract: There is provided a communication apparatus, including: a transmission/reception unit that transmits/receives a signal to/from a different apparatus; a confirmation signal detection unit that detects one of a reception confirmation signal and a non-reception confirmation signal, the reception confirmation signal and the non-reception confirmation signal being transmitted from the different apparatus that has received the signal transmitted from the transmission/reception unit; and a conflict avoiding unit that instructs the transmission/reception unit to transmit an abort signal for instructing to interrupt communication after ignoring a predetermined number of bits following the non-reception confirmation signal when the confirmation signal detection unit has detected the non-reception confirmation signal.
    Type: Application
    Filed: May 2, 2017
    Publication date: July 11, 2019
    Inventors: Hiroo Takahashi, Takashi Yokokawa, Sonfun Lee, Naohiro Koshisaka
  • Patent number: 10284398
    Abstract: A transmission device of the disclosure includes: a transmission symbol generator unit that generates, on the basis of a predetermined number of transition signals each of which indicates a transition in a sequence of transmission symbols, transmission symbol signals that are equal in number to the predetermined number; a serializer unit that serializes the predetermined number of the transmission symbol signals, to generate a serial signal; and a driver unit that operates on the basis of the serial signal.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: May 7, 2019
    Assignee: Sony Corporation
    Inventor: Takashi Yokokawa
  • Publication number: 20190130550
    Abstract: Provided is a processing apparatus including a processing unit that is connected to a data bus, and performs control involved with an image which is output by each of a plurality of image sensors connected to the data bus, through the data bus.
    Type: Application
    Filed: April 19, 2017
    Publication date: May 2, 2019
    Inventors: Hideki Mitsubayashi, Takashi Yokokawa, Naoki Yoshimochi
  • Publication number: 20190124235
    Abstract: Provided is a processing apparatus including a processing unit that is connectable to a data bus, and performs output control on respective images captured by a plurality of image sensors connected to the data bus during a predetermined period of time. A timing of output of the image performed by each of the plurality of image sensors is changed by the output control.
    Type: Application
    Filed: April 10, 2017
    Publication date: April 25, 2019
    Applicant: Sony Semiconductor Solutions Corporation
    Inventors: Hideki Mitsubayashi, Takashi Yokokawa, Naoki Yoshimochi
  • Publication number: 20190123858
    Abstract: A master includes a transmission and receiving unit that transmits and receives signals to and from a slave, and the transmission and receiving unit receives read data read out from the slave, and typically drives the second bit of a preamble transmitted/received subsequent to the read data. The master can notify the slave that communication is or is not interrupted at some midpoint, on the basis of the second bit of the preamble. The present technology can be applied to a bus IF that communicates pursuant to, for example, the specification of I3C.
    Type: Application
    Filed: May 2, 2017
    Publication date: April 25, 2019
    Applicant: Sony Corporation
    Inventors: Hiroo Takahashi, Takashi Yokokawa, Sonfun Lee, Naohiro Koshisaka
  • Publication number: 20190109671
    Abstract: There is provided a communication device that performs communication through a bus, including: a transmitting and receiving unit configured to transmit and receive a signal to and from at least one other communication device; and an error detection unit configured to, when the transmitting and receiving unit transmits and receives the signal, detect whether an error has occurred in the signal using a specific error detection method according to transmission and reception of the signal. The signal is transmitted and received between a first communication device, which is the communication device having a communication initiative through the bus, and a second communication device, which is the communication device configured to perform communication under control of the first communication device.
    Type: Application
    Filed: October 25, 2018
    Publication date: April 11, 2019
    Inventors: Hiroo Takahashi, Takashi Yokokawa, Tatsuya Sugioka, Naohiro Koshisaka
  • Publication number: 20190097757
    Abstract: Provided is a communication device, including: a transmission and reception unit that transmits and receives a signal with an other communication device; an error detection unit that detects an occurrence of an error by having the transmission and reception unit receive a preamble specifying a type of data to be transmitted next, and comparing a bit sequence of a signal received following the preamble to a bit sequence that should be transmitted for the type specified for transmission by the preamble; and a conflict avoidance unit that, if the occurrence of an error is detected by the error detection unit, instructs the transmission and reception unit to transmit a clock corresponding to a certain number of bits following the preamble, and then transmit an abort signal giving an instruction to terminate communication partway through.
    Type: Application
    Filed: May 2, 2017
    Publication date: March 28, 2019
    Inventors: Hiroo Takahashi, Takashi Yokokawa, Sonfun Lee, Naohiro Koshisaka
  • Patent number: 10117001
    Abstract: The present technique relates to a data processing device and a data processing method, capable of promptly issuing an emergency alarm under the DVB-C2. A transmission device generates L1 signalling including an emergency alarm signal related to an emergency alarm, in L1 signalling Part 2 under the digital video broadcasting (DVB)-C2. A reception device processes the L1 signalling obtained from data transmitted from the transmission device. The present technique can be applied, under the DVB-C2, for example, to a case where an emergency alarm is issued.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: October 30, 2018
    Assignee: SONY CORPORATION
    Inventors: Naoki Yoshimochi, Makiko Yamamoto, Takashi Yokokawa
  • Patent number: 10116542
    Abstract: There is provided a communication device that performs communication through a bus, including: a transmitting and receiving unit configured to transmit and receive a signal to and from at least one other communication device; and an error detection unit configured to, when the transmitting and receiving unit transmits and receives the signal, detect whether an error has occurred in the signal using a specific error detection method according to transmission and reception of the signal. The signal is transmitted and received between a first communication device, which is the communication device having a communication initiative through the bus, and a second communication device, which is the communication device configured to perform communication under control of the first communication device.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: October 30, 2018
    Assignee: Sony Corporation
    Inventors: Hiroo Takahashi, Takashi Yokokawa, Tatsuya Sugioka, Naohiro Koshisaka
  • Publication number: 20180270015
    Abstract: The present disclosure relates to a data transmission apparatus and a data transmission method, a reception. device and a reception. method, a program, and a data transmission system capable of surely switching transmission systems. A transmission unit capable of transmitting data by switching the plurality of transmission systems transmits a switching command for instructing to switch the transmission system. Then, as a measure against an error generated when the switching command is generated, an error correction code for correcting the error generated in the switching command is transmitted or it is confirmed whether the switching command has been successfully received or reception of the switching command has failed on the basis of the result of error detection relative to the transmitted switching command. The present technology is applied to, for example, a bus IF.
    Type: Application
    Filed: July 15, 2016
    Publication date: September 20, 2018
    Inventors: Takashi Yokokawa, Hiroo Takahashi
  • Publication number: 20180234274
    Abstract: A transmission device of the disclosure includes: a transmission symbol generator unit that generates, on the basis of a predetermined number of transition signals each of which indicates a transition in a sequence of transmission symbols, transmission symbol signals that are equal in number to the predetermined number, a serializer unit that serializes the predetermined number of the transmission symbol signals, to generate a serial signal; and a driver unit that operates on the basis of the serial signal.
    Type: Application
    Filed: October 5, 2015
    Publication date: August 16, 2018
    Inventor: Takashi Yokokawa
  • Publication number: 20180198695
    Abstract: There is provided a communication device that performs communication through a bus, including: a transmitting and receiving unit configured to transmit and receive a signal to and from at least one other communication device; and an error detection unit configured to, when the transmitting and receiving unit transmits and receives the signal, detect whether an error has occurred in the signal using a specific error detection method according to transmission and reception of the signal. The signal is transmitted and received between a first communication device, which is the communication device having a communication initiative through the bus, and a second communication device, which is the communication device configured to perform communication under control of the first communication device.
    Type: Application
    Filed: March 7, 2018
    Publication date: July 12, 2018
    Inventors: Hiroo Takahashi, Takashi Yokokawa, Tatsuya Sugioka, Naohiro Koshisaka
  • Patent number: 9960981
    Abstract: There is provided a communication device that performs communication through a bus, including: a transmitting and receiving unit configured to transmit and receive a signal to and from at least one other communication device; and an error detection unit configured to, when the transmitting and receiving unit transmits and receives the signal, detect whether an error has occurred in the signal using a specific error detection method according to transmission and reception of the signal. The signal is transmitted and received between a first communication device, which is the communication device having a communication initiative through the bus, and a second communication device, which is the communication device configured to perform communication under control of the first communication device.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: May 1, 2018
    Assignee: Sony Corporation
    Inventors: Hiroo Takahashi, Takashi Yokokawa, Tatsuya Sugioka, Naohiro Koshisaka
  • 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: 20180074990
    Abstract: A bus system of the disclosure includes three or more devices that include one or a plurality of imaging devices, and transmit or receive data signals in a time-division manner; and a bus to which the three or more devices are coupled.
    Type: Application
    Filed: March 25, 2016
    Publication date: March 15, 2018
    Applicant: Sony Corporation
    Inventors: Hideyuki Matsumoto, Hiroaki Hayashi, Takashi Yokokawa, Naoki Yoshimochi
  • Publication number: 20180068633
    Abstract: The present technology relates to a transmission apparatus and a transmission method, a reception apparatus and a reception method, a transmission system, and a program by which the communication efficiency can be enhanced and power saving can be realized in transmitting and receiving additional data instead of audio data in addition to visible image data in a DisplayPort (trademark) standard. In the DisplayPort (trademark) standard, the visible image data is provided with a format by which audio data can be transmitted in addition to the visible image data. In transmitting other additional data by using this format for transmitting the audio data, a part of an error correction code included in the format is omitted if high reliability is not required unlike the audio data. The present technology is applicable to a display port.
    Type: Application
    Filed: March 10, 2016
    Publication date: March 8, 2018
    Inventors: Takashi Yokokawa, Kentaro Nakahara
  • Patent number: 9906327
    Abstract: The present disclosure relates to a receiving device, a receiving method, and a program that can reduce power consumption. A Viterbi decoding unit performs Viterbi decoding on a likelihood as a processing target, a byte de-interleaver delays a part of a decoding result of Viterbi decoding, and an RS decoding unit performs RS decoding on the decoding result after delaying by the byte de-interleaver. A likelihood converting unit controls decoding of the likelihood to improve reliability of the decoding result. Then, when all of a predetermined number of decoding results by the RS decoding unit are succeeded or failed, the decode stop determination unit determines to stop subsequent decoding on the likelihood as a processing target. The present technology may be applied to, for example, a receiving device that receives digital terrestrial broadcasting compatible with the ISDB-T standard, or the like.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: February 27, 2018
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Ryoji Ikegaya, Takashi Yokokawa
  • Publication number: 20180054345
    Abstract: The present technology relates to a transmission apparatus and a transmission method, a reception apparatus and a reception method, a transmission system, and a program by which a bandwidth is efficiently used such that power saving can be realized even if transmission of any stream is stopped in transmitting and receiving a plurality of streams formed of visible image data in accordance with a standard in DisplayPort (trademark). In transmitting a plurality of streams, lanes for processing on a stream-by-stream basis are allocated in each of a transmitter and a receiver. With this, even if transmission of any stream is stopped, processing of a corresponding lane can be stopped. Therefore, it is possible to efficiently stop a bandwidth such that power saving can be realized. The present technology is applicable to a display port.
    Type: Application
    Filed: March 10, 2016
    Publication date: February 22, 2018
    Inventor: Takashi Yokokawa
  • Publication number: 20180048924
    Abstract: The present technology relates to a transmission apparatus and a transmission method, a reception apparatus and a reception method, a transmission system, and a program by which the communication efficiency can be enhanced and power saving can be realized in transmitting and receiving additional data instead of audio data in addition to visible image data in a DisplayPort (trademark) standard. In the DisplayPort (trademark) standard, the visible image data is provided with a format by which audio data can be transmitted in addition to the visible image data. In transmitting other additional data by using this format for transmitting the audio data, a part of an error correction code included in the format is omitted if high reliability is not required unlike the audio data. The present technology is applicable to a display port.
    Type: Application
    Filed: March 10, 2016
    Publication date: February 15, 2018
    Inventor: Takashi Yokokawa