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).
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Patent number: 11750421Abstract: 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: GrantFiled: December 1, 2021Date of Patent: September 5, 2023Assignee: Sony Group CorporationInventors: Hiroaki Hayashi, Hideyuki Suzuki, Takahiro Shimada, Masatsugu Sugano
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Patent number: 11722004Abstract: 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: GrantFiled: February 8, 2022Date of Patent: August 8, 2023Assignee: Sony Semiconductor Solutions CorporationInventors: Hiroaki Hayashi, Masatsugu Sugano
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Patent number: 11394585Abstract: 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: GrantFiled: January 11, 2019Date of Patent: July 19, 2022Assignee: Sony Semiconductor Solutions CorporationInventors: Hiroaki Hayashi, Hiroshi Shiroshita, Masatsugu Sugano, Yukio Shimomura
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Publication number: 20220190640Abstract: 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: ApplicationFiled: February 8, 2022Publication date: June 16, 2022Inventors: Hiroaki Hayashi, Masatsugu Sugano
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Publication number: 20220191068Abstract: 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: ApplicationFiled: December 1, 2021Publication date: June 16, 2022Inventors: Hiroaki Hayashi, Hideyuki Suzuki, Takahiro Shimada, Masatsugu Sugano
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Patent number: 11264832Abstract: 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: GrantFiled: October 5, 2017Date of Patent: March 1, 2022Assignee: Sony Semiconductor Solutions CorporationInventors: Hiroaki Hayashi, Masatsugu Sugano
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Patent number: 11218344Abstract: 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: GrantFiled: June 2, 2020Date of Patent: January 4, 2022Assignee: Sony Group CorporationInventors: Hiroaki Hayashi, Hideyuki Suzuki, Takahiro Shimada, Masatsugu Sugano
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Publication number: 20200396108Abstract: 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: ApplicationFiled: January 11, 2019Publication date: December 17, 2020Inventors: Hiroaki Hayashi, Hiroshi Shiroshita, Masatsugu Sugano, Yukio Shimomura
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Publication number: 20200304346Abstract: 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: ApplicationFiled: June 2, 2020Publication date: September 24, 2020Inventors: Hiroaki Hayashi, Hideyuki Suzuki, Takahiro Shimada, Masatsugu Sugano
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Patent number: 10763901Abstract: 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: GrantFiled: November 29, 2017Date of Patent: September 1, 2020Assignee: Sony Semiconductor Solutions CorporationInventors: Hiroaki Hayashi, Masatsugu Sugano
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Patent number: 10693685Abstract: 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: GrantFiled: January 18, 2017Date of Patent: June 23, 2020Assignee: Sony CorporationInventors: Hiroaki Hayashi, Hideyuki Suzuki, Takahiro Shimada, Masatsugu Sugano
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Patent number: 10623032Abstract: 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: GrantFiled: July 11, 2017Date of Patent: April 14, 2020Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Hiroaki Hayashi, Masatsugu Sugano
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Publication number: 20190386855Abstract: 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: ApplicationFiled: January 18, 2017Publication date: December 19, 2019Inventors: Hiroaki Hayashi, Hideyuki Suzuki, Takahiro Shimada, Masatsugu Sugano
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Publication number: 20190305806Abstract: 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: ApplicationFiled: November 29, 2017Publication date: October 3, 2019Inventors: Hiroaki Hayashi, Masatsugu Sugano
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Publication number: 20190222059Abstract: 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: ApplicationFiled: October 5, 2017Publication date: July 18, 2019Inventors: Hiroaki Hayashi, Masatsugu Sugano
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Publication number: 20190215022Abstract: 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: ApplicationFiled: July 11, 2017Publication date: July 11, 2019Inventors: HIROAKI HAYASHI, MASATSUGU SUGANO
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Patent number: 9813162Abstract: 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: GrantFiled: September 11, 2014Date of Patent: November 7, 2017Assignee: Sony CorporationInventors: Koki Uchino, Hideyuki Suzuki, Hiroshi Morita, Yoshifumi Miyajima, Masatsugu Sugano
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Publication number: 20150104190Abstract: 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: ApplicationFiled: September 11, 2014Publication date: April 16, 2015Inventors: Koki Uchino, Hideyuki Suzuki, Hiroshi Morita, Yoshifumi Miyajima, Masatsugu Sugano