Patents by Inventor Masatsugu Sugano

Masatsugu Sugano 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).

  • Patent number: 11750421
    Abstract: A transmission device according to the disclosure includes a driver section that is able to transmit a data signal by using three or more predetermined number of voltage states and set voltages in each of the voltage states; and a control section that sets an emphasis voltage that is based on a transition among the predetermined number of the voltage states, and thereby causes the driver section to perform emphasis.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: September 5, 2023
    Assignee: Sony Group Corporation
    Inventors: Hiroaki Hayashi, Hideyuki Suzuki, Takahiro Shimada, Masatsugu Sugano
  • Patent number: 11722004
    Abstract: The present technology relates to a signal processing device, a signal processing method, and an electronic device that reduce the influence of crosstalk. In one example, a signal processing device includes a plurality of comparators; a delay unit adapted to delay output of each of the plurality of comparators; and a subtractor adapted to subtract, from a supplied signal, a signal from the delay unit. The signal processing device processes signals transmitted in N phases and includes (N-1) or more comparators. Each of the plurality of comparators has a different threshold value set and compares a received signal with the threshold value, and in a case where the signal transitions between a plurality of voltage levels, the threshold value is set to a value within adjacent voltage levels. In a second example, a reception device that receives a signal transmitted in multiple phases and via multiple lines.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: August 8, 2023
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Hiroaki Hayashi, Masatsugu Sugano
  • Patent number: 11394585
    Abstract: A communication system according to an embodiment of the present disclosure is a communication system that transmits data from a plurality of transmission devices to one reception device via a pair of signal lines. In the communication system, each of the transmission devices includes: a mode controller that controls a transmission mode; a transmission data generator that generates the data in accordance with the transmission mode; and a data transmitter that transmits the generated data to the reception device. In a case where the transmission mode of a first transmission device is an HS mode, the mode controller of a second transmission device turns the transmission mode of the second transmission device to a termination mode in which an output terminal of the second transmission device is terminated.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: July 19, 2022
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Hiroaki Hayashi, Hiroshi Shiroshita, Masatsugu Sugano, Yukio Shimomura
  • Publication number: 20220190640
    Abstract: The present technology relates to a signal processing device, a signal processing method, and a program capable of reducing influence of crosstalk. Provided are: a plurality of comparators; a delay unit adapted to delay output of each of the plurality of comparators; and a subtractor adapted to subtract, from a supplied signal, a signal from the delay unit. The signal processing device processes signals transmitted in N phases and includes (N?1) or more comparators. Each of the plurality of comparators has a different threshold value set and compares a received signal with the threshold value, and in a case where the signal transitions between a plurality of voltage levels, the threshold value is set to a value within adjacent voltage levels. The present technology can be applied to a reception device that receives a signal transmitted in multiple phases and via multiple lines.
    Type: Application
    Filed: February 8, 2022
    Publication date: June 16, 2022
    Inventors: Hiroaki Hayashi, Masatsugu Sugano
  • Publication number: 20220191068
    Abstract: A transmission device according to the disclosure includes a driver section that is able to transmit a data signal by using three or more predetermined number of voltage states and set voltages in each of the voltage states; and a control section that sets an emphasis voltage that is based on a transition among the predetermined number of the voltage states, and thereby causes the driver section to perform emphasis.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 16, 2022
    Inventors: Hiroaki Hayashi, Hideyuki Suzuki, Takahiro Shimada, Masatsugu Sugano
  • Patent number: 11264832
    Abstract: The present technology relates to a signal processing device, a signal processing method, and a program capable of reducing influence of crosstalk. Provided are: a plurality of comparators; a delay unit adapted to delay output of each of the plurality of comparators; and a subtractor adapted to subtract, from a supplied signal, a signal from the delay unit. The signal processing device processes signals transmitted in N phases and includes (N?1) or more comparators. Each of the plurality of comparators has a different threshold value set and compares a received signal with the threshold value, and in a case where the signal transitions between a plurality of voltage levels, the threshold value is set to a value within adjacent voltage levels. The present technology can be applied to a reception device that receives a signal transmitted in multiple phases and via multiple lines.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: March 1, 2022
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Hiroaki Hayashi, Masatsugu Sugano
  • Patent number: 11218344
    Abstract: A transmission device according to the disclosure includes a driver section that is able to transmit a data signal by using three or more predetermined number of voltage states and set voltages in each of the voltage states; and a control section that sets an emphasis voltage that is based on a transition among the predetermined number of the voltage states, and thereby causes the driver section to perform emphasis.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: January 4, 2022
    Assignee: Sony Group Corporation
    Inventors: Hiroaki Hayashi, Hideyuki Suzuki, Takahiro Shimada, Masatsugu Sugano
  • Publication number: 20200396108
    Abstract: A communication system according to an embodiment of the present disclosure is a communication system that transmits data from a plurality of transmission devices to one reception device via a pair of signal lines. In the communication system, each of the transmission devices includes: a mode controller that controls a transmission mode; a transmission data generator that generates the data in accordance with the transmission mode; and a data transmitter that transmits the generated data to the reception device. In a case where the transmission mode of a first transmission device is an HS mode, the mode controller of a second transmission device turns the transmission mode of the second transmission device to a termination mode in which an output terminal of the second transmission device is terminated.
    Type: Application
    Filed: January 11, 2019
    Publication date: December 17, 2020
    Inventors: Hiroaki Hayashi, Hiroshi Shiroshita, Masatsugu Sugano, Yukio Shimomura
  • Publication number: 20200304346
    Abstract: A transmission device according to the disclosure includes a driver section that is able to transmit a data signal by using three or more predetermined number of voltage states and set voltages in each of the voltage states; and a control section that sets an emphasis voltage that is based on a transition among the predetermined number of the voltage states, and thereby causes the driver section to perform emphasis.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 24, 2020
    Inventors: Hiroaki Hayashi, Hideyuki Suzuki, Takahiro Shimada, Masatsugu Sugano
  • Patent number: 10763901
    Abstract: A transmission device of the disclosure includes: a plurality of delay sections having changeable delay amounts; a driver section that includes a plurality of drivers and transmits a data signal indicating a sequence of symbols using the plurality of drivers, the plurality of drivers being provided to correspond to the plurality of delay sections and setting a voltage at a corresponding output terminal to a mutually different voltage on the basis of a signal delayed by a corresponding delay section of the plurality of delay sections; and a controller that sets the respective delay amounts of the plurality of delay sections on the basis of a transition of a symbol in the sequence of symbols.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: September 1, 2020
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Hiroaki Hayashi, Masatsugu Sugano
  • Patent number: 10693685
    Abstract: A transmission device according to the disclosure includes a driver section that is able to transmit a data signal by using three or more predetermined number of voltage states and set voltages in each of the voltage states; and a control section that sets an emphasis voltage that is based on a transition among the predetermined number of the voltage states, and thereby causes the driver section to perform emphasis.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: June 23, 2020
    Assignee: Sony Corporation
    Inventors: Hiroaki Hayashi, Hideyuki Suzuki, Takahiro Shimada, Masatsugu Sugano
  • Patent number: 10623032
    Abstract: There is provided a transmission device including a transmission unit that has a function of transmitting a transmission signal with a reduced influence of reflection noise in transmission data after data transition on the basis of the transmission data. The transmission device is connected to a transmission line. Also provided is a reception device connected to the transmission line. The reception device receives data transmitted from the transmission device.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: April 14, 2020
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Hiroaki Hayashi, Masatsugu Sugano
  • Publication number: 20190386855
    Abstract: A transmission device according to the disclosure includes a driver section that is able to transmit a data signal by using three or more predetermined number of voltage states and set voltages in each of the voltage states; and a control section that sets an emphasis voltage that is based on a transition among the predetermined number of the voltage states, and thereby causes the driver section to perform emphasis.
    Type: Application
    Filed: January 18, 2017
    Publication date: December 19, 2019
    Inventors: Hiroaki Hayashi, Hideyuki Suzuki, Takahiro Shimada, Masatsugu Sugano
  • Publication number: 20190305806
    Abstract: A transmission device of the disclosure includes: a plurality of delay sections having changeable delay amounts; a driver section that includes a plurality of drivers and transmits a data signal indicating a sequence of symbols using the plurality of drivers, the plurality of drivers being provided to correspond to the plurality of delay sections and setting a voltage at a corresponding output terminal to a mutually different voltage on the basis of a signal delayed by a corresponding delay section of the plurality of delay sections; and a controller that sets the respective delay amounts of the plurality of delay sections on the basis of a transition of a symbol in the sequence of symbols.
    Type: Application
    Filed: November 29, 2017
    Publication date: October 3, 2019
    Inventors: Hiroaki Hayashi, Masatsugu Sugano
  • Publication number: 20190222059
    Abstract: The present technology relates to a signal processing device, a signal processing method, and a program capable of reducing influence of crosstalk. Provided are: a plurality of comparators; a delay unit adapted to delay output of each of the plurality of comparators; and a subtractor adapted to subtract, from a supplied signal, a signal from the delay unit. The signal processing device processes signals transmitted in N phases and includes (N?1) or more comparators. Each of the plurality of comparators has a different threshold value set and compares a received signal with the threshold value, and in a case where the signal transitions between a plurality of voltage levels, the threshold value is set to a value within adjacent voltage levels. The present technology can be applied to a reception device that receives a signal transmitted in multiple phases and via multiple lines.
    Type: Application
    Filed: October 5, 2017
    Publication date: July 18, 2019
    Inventors: Hiroaki Hayashi, Masatsugu Sugano
  • Publication number: 20190215022
    Abstract: There is provided a transmission device including: a transmission unit that has a function of transmitting a transmission signal with a reduced influence of reflection noise in transmission data after data transition on the basis of the transmission data.
    Type: Application
    Filed: July 11, 2017
    Publication date: July 11, 2019
    Inventors: HIROAKI HAYASHI, MASATSUGU SUGANO
  • Patent number: 9813162
    Abstract: A driving element which performs driving according to a level of a voltage signal to be transmitted optically, a modulation current driving circuit configured to supply a modulation current modulated by the driving element to a light source for optical communication configured to convert a current signal into light and to output the light, and a constant current supply circuit configured to supply a constant current to the light source for optical communication are included. Then, when the voltage signal is at a first level, the driving element is turned on and the modulation current driving circuit supplies the modulation current to the light source for optical communication. When the voltage signal is at a second level, the driving element is turned off and the modulation current driving circuit stops supplying the modulation current. The present technique can be applied, for example, to an optical transmission system.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: November 7, 2017
    Assignee: Sony Corporation
    Inventors: Koki Uchino, Hideyuki Suzuki, Hiroshi Morita, Yoshifumi Miyajima, Masatsugu Sugano
  • Publication number: 20150104190
    Abstract: A driving element which performs driving according to a level of a voltage signal to be transmitted optically, a modulation current driving circuit configured to supply a modulation current modulated by the driving element to a light source for optical communication configured to convert a current signal into light and to output the light, and a constant current supply circuit configured to supply a constant current to the light source for optical communication are included. Then, when the voltage signal is at a first level, the driving element is turned on and the modulation current driving circuit supplies the modulation current to the light source for optical communication. When the voltage signal is at a second level, the driving element is turned off and the modulation current driving circuit stops supplying the modulation current. The present technique can be applied, for example, to an optical transmission system.
    Type: Application
    Filed: September 11, 2014
    Publication date: April 16, 2015
    Inventors: Koki Uchino, Hideyuki Suzuki, Hiroshi Morita, Yoshifumi Miyajima, Masatsugu Sugano