Patents by Inventor Toru Terashima
Toru Terashima 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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Publication number: 20230236308Abstract: When measuring a distance between communication apparatuses, influence by a frequency offset between communication apparatuses is suppressed. A communication apparatus includes a frequency offset acquisition unit, a time acquisition unit, a phase acquisition unit, and a distance generation unit. The frequency offset acquisition unit acquires a frequency offset between frequencies used for transmission/reception by respective ones of the communication apparatuses. The time acquisition unit acquires transmission/reception time between the communication apparatuses. The phase acquisition unit acquires a phase relationship between frequencies used for transmission/reception. The distance generation unit generates distance information on the basis of the phase relationship.Type: ApplicationFiled: March 18, 2021Publication date: July 27, 2023Inventors: Hiroaki Nakano, Toru Terashima, Takuya Ichihara
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Patent number: 11664682Abstract: An electronic unit includes: a power receiving section configured to receive electric power fed from a feed unit by using a magnetic field; and a control section configured to perform, when a receiving current supplied from the power receiving section is less than a predetermined threshold current at a time of a light load, current increasing control to increase the receiving current to the threshold current or more.Type: GrantFiled: August 23, 2021Date of Patent: May 30, 2023Assignee: Sony Group CorporationInventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen, Shinichi Fukuda
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Patent number: 11574160Abstract: A non-contact communication medium according to one disclosed embodiment includes a memory unit, a power generation unit, a power monitoring unit, and a capacitance control unit. The power generation unit includes a resonant circuit and a rectification circuit, and generates electric power to be supplied to the memory unit. The resonant circuit includes an antenna coil and resonant capacitance unit having a variable capacitance value, and the rectification circuit rectifies a resonant output of the resonant circuit. The power monitoring unit includes a current adjustment element, a reference voltage generation source, and an operational amplifier. The operational amplifier controls the current adjustment element such that an output voltage of the rectification circuit is equal to a reference voltage from the reference voltage generation source. The capacitance control unit is configured to control the resonant capacitance unit on the basis of an output of the operational amplifier.Type: GrantFiled: March 19, 2019Date of Patent: February 7, 2023Assignee: Sony Semiconductor Solutions CorporationInventors: Kazutoshi Ono, Toru Terashima, Hiroaki Fujita, Hiroaki Nakano, Hideo Maeda, Nobuhiko Shigyo
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Patent number: 11316382Abstract: A power feeding apparatus is provided. The power feeding apparatus includes a power feeding unit configured to supply electric power to a power receiving apparatus through a magnetic field; a measuring unit configured to measure an electric characteristic value and to generate a measurement value; a power receiving unit configured to provide a set value; and a foreign substance detection unit configured to detect a foreign substance in the magnetic field based on the set value and the measurement value. A power receiving apparatus, a power feeding system, and a method of controlling power feeding are also provided.Type: GrantFiled: June 30, 2017Date of Patent: April 26, 2022Assignee: Sony Group CorporationInventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen, Osamu Kozakai, Kenichi Fujimaki
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Publication number: 20210384773Abstract: An electronic unit includes: a power receiving section configured to receive electric power fed from a feed unit by using a magnetic field; and a control section configured to perform, when a receiving current supplied from the power receiving section is less than a predetermined threshold current at a time of a light load, current increasing control to increase the receiving current to the threshold current or more.Type: ApplicationFiled: August 23, 2021Publication date: December 9, 2021Inventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen, Shinichi Fukuda
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Patent number: 11128177Abstract: An electronic unit includes: a power receiving section configured to receive electric power fed from a feed unit by using a magnetic field; and a control section configured to perform, when a receiving current supplied from the power receiving section is less than a predetermined threshold current at a time of a light load, current increasing control to increase the receiving current to the threshold current or more.Type: GrantFiled: December 23, 2019Date of Patent: September 21, 2021Assignee: Sony CorporationInventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen, Shinichi Fukuda
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Publication number: 20210012174Abstract: A non-contact communication medium according to one disclosed embodiment includes a memory unit, a power generation unit, a power monitoring unit, and a capacitance control unit. The power generation unit includes a resonant circuit and a rectification circuit, and generates electric power to be supplied to the memory unit. The resonant circuit includes an antenna coil and resonant capacitance unit having a variable capacitance value, and the rectification circuit rectifies a resonant output of the resonant circuit. The power monitoring unit includes a current adjustment element, a reference voltage generation source, and an operational amplifier. The operational amplifier controls the current adjustment element such that an output voltage of the rectification circuit is equal to a reference voltage from the reference voltage generation source. The capacitance control unit is configured to control the resonant capacitance unit on the basis of an output of the operational amplifier.Type: ApplicationFiled: March 19, 2019Publication date: January 14, 2021Inventors: Kazutoshi Ono, Toru Terashima, Hiroaki Fujita, Hiroaki Nakano, Hideo Maeda, Nobuhiko Shigyo
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Patent number: 10862594Abstract: A communication system includes one or more communication apparatuses, each including a transmission circuit and a reception circuit. The transmission circuit includes a transmission unit and a signal generator. The transmission unit transmits one of a first transmission signal including first transmission data or a second transmission signal including at least one of a periodic signal with a constant frequency or a narrow band modulation signal having lower speed than the first transmission data. The signal generator generates the second transmission signal. The reception circuit includes a reception unit that receives the first transmission signal and the second transmission signal a narrow band detector that outputs a narrow band detection signal through detecting the second transmission signal in a narrow band, and a determination unit that determines presence of a significant signal or presence of significant signal change in the narrow band detection signal and outputs a determination signal.Type: GrantFiled: May 16, 2017Date of Patent: December 8, 2020Assignee: SONY CORPORATIONInventors: Katsuyuki Tanaka, Fumitaka Kondo, Moonjae Jeong, Toru Terashima, Fumihiro Nishiyama
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Patent number: 10833538Abstract: An electronic unit includes: an electricity reception section configured to receive power fed from a power feeding unit using a magnetic field; a voltage detection section configured to detect a received voltage supplied from the electricity reception section; and a control section, wherein while preliminary power feeding at a lower power than main power feeding is performed from the power feeding unit, and when a received voltage detected by the voltage detection section is equal to or higher than a predetermined threshold voltage, the control section performs voltage reduction control so as to decrease the received voltage to lower than the threshold voltage.Type: GrantFiled: April 12, 2019Date of Patent: November 10, 2020Assignee: Sony CorporationInventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen
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Publication number: 20200136437Abstract: An electronic unit includes: a power receiving section configured to receive electric power fed from a feed unit by using a magnetic field; and a control section configured to perform, when a receiving current supplied from the power receiving section is less than a predetermined threshold current at a time of a light load, current increasing control to increase the receiving current to the threshold current or more.Type: ApplicationFiled: December 23, 2019Publication date: April 30, 2020Inventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen, Shinichi Fukuda
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Patent number: 10547213Abstract: An electronic unit includes: a power receiving section configured to receive electric power fed from a feed unit by using a magnetic field; and a control section configured to perform, when a receiving current supplied from the power receiving section is less than a predetermined threshold current at a time of a light load, current increasing control to increase the receiving current to the threshold current or more.Type: GrantFiled: June 7, 2018Date of Patent: January 28, 2020Assignee: Sony CorporationInventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen, Shinichi Fukuda
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Publication number: 20190238005Abstract: An electronic unit includes: an electricity reception section configured to receive power fed from a power feeding unit using a magnetic field; a voltage detection section configured to detect a received voltage supplied from the electricity reception section; and a control section, wherein while preliminary power feeding at a lower power than main power feeding is performed from the power feeding unit, and when a received voltage detected by the voltage detection section is equal to or higher than a predetermined threshold voltage, the control section performs voltage reduction control so as to decrease the received voltage to lower than the threshold voltage.Type: ApplicationFiled: April 12, 2019Publication date: August 1, 2019Inventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen
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Patent number: 10312741Abstract: An electronic unit includes: an electricity reception section configured to receive power fed from a power feeding unit using a magnetic field; a voltage detection section configured to detect a received voltage supplied from the electricity reception section; and a control section, wherein while preliminary power feeding at a lower power than main power feeding is performed from the power feeding unit, and when a received voltage detected by the voltage detection section is equal to or higher than a predetermined threshold voltage, the control section performs voltage reduction control so as to decrease the received voltage to lower than the threshold voltage.Type: GrantFiled: November 20, 2017Date of Patent: June 4, 2019Assignee: Sony CorporationInventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen
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Publication number: 20190132059Abstract: A communication system of the present disclosure includes one or more communication apparatuses, each of which includes: a transmission circuit including a transmission unit and a signal generator, the transmission unit that selectively transmits, via an antenna unit, one of a first transmission signal including first transmission data or a second transmission signal including at least one of a periodic signal with a constant frequency or a narrow band modulation signal by data having lower speed than the first transmission data, and the signal generator that generates the second transmission signal; and a reception circuit including a reception unit, a narrow band detector, and a determination unit, the reception unit that receives the first transmission signal and the second transmission signal via the antenna unit, the narrow band detector that outputs a narrow band detection signal through detecting the second transmission signal in a narrow band, and the determination unit that determines presence or absType: ApplicationFiled: May 16, 2017Publication date: May 2, 2019Inventors: KATSUYUKI TANAKA, FUMITAKA KONDO, MOONJAE JEONG, TORU TERASHIMA, FUMIHIRO NISHIYAMA
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Publication number: 20180287428Abstract: An electronic unit includes: a power receiving section configured to receive electric power fed from a feed unit by using a magnetic field; and a control section configured to perform, when a receiving current supplied from the power receiving section is less than a predetermined threshold current at a time of a light load, current increasing control to increase the receiving current to the threshold current or more.Type: ApplicationFiled: June 7, 2018Publication date: October 4, 2018Inventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen, Shinichi Fukuda
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Patent number: 10027176Abstract: An electronic unit includes: a power receiving section configured to receive electric power fed from a feed unit by using a magnetic field; and a control section configured to perform, when a receiving current supplied from the power receiving section is less than a predetermined threshold current at a time of a light load, current increasing control to increase the receiving current to the threshold current or more.Type: GrantFiled: August 8, 2016Date of Patent: July 17, 2018Assignee: Sony CorporationInventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen, Shinichi Fukuda
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Publication number: 20180076669Abstract: An electronic unit includes: an electricity reception section configured to receive power fed from a power feeding unit using a magnetic field; a voltage detection section configured to detect a received voltage supplied from the electricity reception section; and a control section, wherein while preliminary power feeding at a lower power than main power feeding is performed from the power feeding unit, and when a received voltage detected by the voltage detection section is equal to or higher than a predetermined threshold voltage, the control section performs voltage reduction control so as to decrease the received voltage to lower than the threshold voltage.Type: ApplicationFiled: November 20, 2017Publication date: March 15, 2018Inventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen
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Patent number: 9882417Abstract: An electronic unit includes: an electricity reception section configured to receive power fed from a power feeding unit using a magnetic field; a voltage detection section configured to detect a received voltage supplied from the electricity reception section; and a control section, wherein while preliminary power feeding at a lower power than main power feeding is performed from the power feeding unit, and when a received voltage detected by the voltage detection section is equal to or higher than a predetermined threshold voltage, the control section performs voltage reduction control so as to decrease the received voltage to lower than the threshold voltage.Type: GrantFiled: September 23, 2016Date of Patent: January 30, 2018Assignee: Sony CorporationInventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen
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Patent number: 9882437Abstract: A power feeding apparatus is provided. The power feeding apparatus includes a power feeding unit configured to supply electric power to a power receiving apparatus through a magnetic field; a measuring unit configured to measure an electric characteristic value and to generate a measurement value; a power receiving unit configured to provide a set value; and a foreign substance detection unit configured to detect a foreign substance in the magnetic field based on the set value and the measurement value. A power receiving apparatus, a power feeding system, and a method of controlling power feeding are also provided.Type: GrantFiled: March 31, 2016Date of Patent: January 30, 2018Assignee: Sony CorporationInventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen, Osamu Kozakai, Kenichi Fujimaki
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Publication number: 20180006503Abstract: A power feeding apparatus is provided. The power feeding apparatus includes a power feeding unit configured to supply electric power to a power receiving apparatus through a magnetic field; a measuring unit configured to measure an electric characteristic value and to generate a measurement value; a power receiving unit configured to provide a set value; and a foreign substance detection unit configured to detect a foreign substance in the magnetic field based on the set value and the measurement value. A power receiving apparatus, a power feeding system, and a method of controlling power feeding are also provided.Type: ApplicationFiled: March 31, 2016Publication date: January 4, 2018Inventors: Hiroaki Nakano, Toru Terashima, Keigo Bunsen, Osamu Kozakai, Kenichi Fujimaki