Patents by Inventor Shinya HITOMI
Shinya HITOMI 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: 20240014845Abstract: A radio-frequency circuit includes a first power amplifier, first and second filters, an attenuation circuit, and a switch. The first power amplifier supports a first power class which allows for maximum output power higher than power class 3. The first filter has a pass band including a first band and is connected between the first power amplifier and an antenna connecting terminal. The second filter has a pass band including a second band and is connected to the antenna connecting terminal. The radio-frequency circuit can perform simultaneous communication of the first band and the second band. The attenuation circuit and the switch are connected in series with each other between a ground and a transmit path connecting the first power amplifier and the antenna connecting terminal.Type: ApplicationFiled: September 20, 2023Publication date: January 11, 2024Applicant: Murata Manufacturing Co., Ltd.Inventors: Shinya HITOMI, Hirotsugu MORI
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Patent number: 11856529Abstract: A communication circuit includes a first transfer circuit that includes a first transmitter circuit, and a second transfer circuit that includes a second transmitter circuit that can transmit a signal simultaneously with the first transmitter circuit. The second transmitter circuit is configured to be placed in a transmission halt state when transmission power of the second transmitter circuit resulting from being decreased by a predetermined value is lower than or equal to a threshold.Type: GrantFiled: August 10, 2022Date of Patent: December 26, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shinya Hitomi, Hidenori Obiya, Hirotsugu Mori
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Patent number: 11811371Abstract: A radio-frequency circuit includes a power amplifying circuit configured to amplify a first radio-frequency signal having a first channel bandwidth and a second radio-frequency signal having a second channel bandwidth greater than the first channel bandwidth. The power amplifying circuit is configured to amplify the first radio-frequency signal in an amplifying mode according to an average power tracking method, and to amplify the second radio-frequency signal in an amplifying mode according to an envelope tracking method.Type: GrantFiled: June 23, 2020Date of Patent: November 7, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shinya Hitomi, Hidenori Obiya, Hirotsugu Mori
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Publication number: 20230327688Abstract: A radio frequency module includes: a first filter circuit disposed on a first path that connects an antenna terminal and a first input/output terminal, and having a passband that is a first frequency band; a second filter circuit disposed on a second path that connects the antenna terminal and a second input/output terminal, and having a passband that is a second frequency band higher than the first frequency band; and a band-elimination filter circuit disposed on the second path and having an attenuation band that is a partial band of a third frequency band that belongs to an unlicensed band ranging from 5 GHz or higher, and is higher than the second frequency band. The second filter circuit is an LC filter circuit that includes an inductor and a capacitor.Type: ApplicationFiled: June 12, 2023Publication date: October 12, 2023Inventors: Shinya HITOMI, Yuichi TANNAN, Hirotsugu MORI
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Patent number: 11722159Abstract: A radio frequency module includes: a first filter circuit disposed on a first path that connects an antenna terminal and a first input/output terminal, and having a passband that is a first frequency band; a second filter circuit disposed on a second path that connects the antenna terminal and a second input/output terminal, and having a passband that is a second frequency band higher than the first frequency band; and a band-elimination filter circuit disposed on the second path and having an attenuation band that is a partial band of a third frequency band that belongs to an unlicensed band ranging from 5 GHz or higher, and is higher than the second frequency band. The second filter circuit is an LC filter circuit that includes an inductor and a capacitor.Type: GrantFiled: April 26, 2022Date of Patent: August 8, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shinya Hitomi, Yuichi Tannan, Hirotsugu Mori
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Publication number: 20220394630Abstract: A communication circuit includes a first transfer circuit that includes a first transmitter circuit, and a second transfer circuit that includes a second transmitter circuit that can transmit a signal simultaneously with the first transmitter circuit. The second transmitter circuit is configured to be placed in a transmission halt state when transmission power of the second transmitter circuit resulting from being decreased by a predetermined value is lower than or equal to a threshold.Type: ApplicationFiled: August 10, 2022Publication date: December 8, 2022Inventors: Shinya HITOMI, Hidenori OBIYA, Hirotsugu MORI
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Patent number: 11509336Abstract: A radio-frequency circuit includes a first power amplifier that outputs a first transmission signal and a second power amplifier that outputs a second transmission signal having a frequency different from a frequency of the first transmission signal. In a period in which the first transmission signal the second transmission signal are simultaneously outputted, at least one of the first power amplifier or the second power amplifier reduces transmission power of the at least one of the first power amplifier or the second power amplifier to cause a power component of intermodulation distortion superimposed on a transmission signal output from the first power amplifier and the second power amplifier to be less than or equal to a threshold value.Type: GrantFiled: June 10, 2020Date of Patent: November 22, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shinya Hitomi, Hirotsugu Mori
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Patent number: 11452050Abstract: A communication circuit includes a first transfer circuit that includes a first transmitter circuit, and a second transfer circuit that includes a second transmitter circuit that can transmit a signal simultaneously with the first transmitter circuit. The second transmitter circuit is configured to be placed in a transmission halt state when transmission power of the second transmitter circuit resulting from being decreased by a predetermined value is lower than or equal to a threshold.Type: GrantFiled: June 10, 2020Date of Patent: September 20, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shinya Hitomi, Hidenori Obiya, Hirotsugu Mori
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Patent number: 11431304Abstract: A radio-frequency circuit includes a power amplifying circuit configured to amplify a first radio-frequency signal having a first channel bandwidth and a second radio-frequency signal having a second channel bandwidth greater than the first channel bandwidth. The power amplifying circuit is configured to amplify the first radio-frequency signal in an amplifying mode according to an envelope tracking method, and to amplify the second radio-frequency signal in an amplifying mode according to an average power tracking method.Type: GrantFiled: June 23, 2020Date of Patent: August 30, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shinya Hitomi, Hidenori Obiya, Hirotsugu Mori
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Publication number: 20220255570Abstract: A radio frequency module includes: a first filter circuit disposed on a first path that connects an antenna terminal and a first input/output terminal, and having a passband that is a first frequency band; a second filter circuit disposed on a second path that connects the antenna terminal and a second input/output terminal, and having a passband that is a second frequency band higher than the first frequency band; and a band-elimination filter circuit disposed on the second path and having an attenuation band that is a partial band of a third frequency band that belongs to an unlicensed band ranging from 5 GHz or higher, and is higher than the second frequency band. The second filter circuit is an LC filter circuit that includes an inductor and a capacitor.Type: ApplicationFiled: April 26, 2022Publication date: August 11, 2022Inventors: Shinya HITOMI, Yuichi TANNAN, Hirotsugu MORI
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Patent number: 11349508Abstract: A radio frequency module includes: a first filter circuit disposed on a first path that connects an antenna terminal and a first input/output terminal, and having a passband that is a first frequency band; a second filter circuit disposed on a second path that connects the antenna terminal and a second input/output terminal, and having a passband that is a second frequency band higher than the first frequency band; and a band-elimination filter circuit disposed on the second path and having an attenuation band that is a partial band of a third frequency band that belongs to an unlicensed band ranging from 5 GHz or higher, and is higher than the second frequency band. The second filter circuit is an LC filter circuit that includes an inductor and a capacitor.Type: GrantFiled: October 9, 2020Date of Patent: May 31, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shinya Hitomi, Yuichi Tannan, Hirotsugu Mori
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Patent number: 11290966Abstract: A communication circuit includes a first transfer circuit that includes a first transmitter circuit, and a second transfer circuit that includes a second transmitter circuit that can transmit a signal simultaneously with the first transmitter circuit. When a difference between requested power and scheduled power is greater than a predetermined value, the second transmitter circuit is configured to change transmission power of the second transmitter circuit to adjust the difference to a value smaller than the predetermined value, the requested power being requested transmission power, the scheduled power being transmission power to be transmitted based on the requested power.Type: GrantFiled: June 10, 2020Date of Patent: March 29, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shinya Hitomi, Hidenori Obiya, Hirotsugu Mori
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Patent number: 11228988Abstract: A communication circuit includes a first transfer circuit that includes a first transmitter circuit, and a second transfer circuit that includes a second transmitter circuit that can transmit a signal simultaneously with the first transmitter circuit. The second transmitter circuit is configured to be placed in a transmission halt state when a difference between requested power and scheduled power is greater than a predetermined value, the requested power being requested transmission power, the scheduled power being transmission power to be transmitted based on the requested power.Type: GrantFiled: June 10, 2020Date of Patent: January 18, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shinya Hitomi, Hidenori Obiya, Hirotsugu Mori
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Patent number: 11211958Abstract: A radio-frequency circuit includes a first power amplifier that amplifies a first transmission signal and outputs the first transmission signal amplified; and a second power amplifier that amplifies a second transmission signal different in frequency from the first transmission signal, and outputs the second transmission signal amplified. At least one of the first power amplifier or the second power amplifier switches from ET mode to APT mode, when (1) both the first power amplifier and the second power amplifier are outputting amplified transmission signals and (2) output power of at least one of the first power amplifier or the second power amplifier is greater than a first threshold power.Type: GrantFiled: March 4, 2020Date of Patent: December 28, 2021Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shinya Hitomi, Hidenori Obiya
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Publication number: 20210111742Abstract: A radio frequency module includes: a first filter circuit disposed on a first path that connects an antenna terminal and a first input/output terminal, and having a passband that is a first frequency band; a second filter circuit disposed on a second path that connects the antenna terminal and a second input/output terminal, and having a passband that is a second frequency band higher than the first frequency band; and a band-elimination filter circuit disposed on the second path and having an attenuation band that is a partial band of a third frequency band that belongs to an unlicensed band ranging from 5 GHz or higher, and is higher than the second frequency band. The second filter circuit is an LC filter circuit that includes an inductor and a capacitor.Type: ApplicationFiled: October 9, 2020Publication date: April 15, 2021Inventors: Shinya HITOMI, Yuichi TANNAN, Hirotsugu MORI
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Patent number: 10971459Abstract: A high-frequency module (1) includes a first substrate (101), a second substrate (102) that faces the first substrate (101), a support (103) that supports the first substrate (101) and the second substrate (102), and a plurality of high-frequency circuit components arranged in internal space formed by the first substrate (101), the second substrate (102), and the support and on both of facing principal faces of the first substrate (101) and the second substrate (102), and the plurality of high-frequency circuit components include a power amplifier element that constitutes a power amplifier circuit (16).Type: GrantFiled: February 26, 2018Date of Patent: April 6, 2021Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shinya Hitomi, Hidenori Obiya, Reiji Nakajima
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Publication number: 20200412306Abstract: A radio-frequency circuit includes a power amplifying circuit configured to amplify a first radio-frequency signal having a first channel bandwidth and a second radio-frequency signal having a second channel bandwidth greater than the first channel bandwidth. The power amplifying circuit is configured to amplify the first radio-frequency signal in an amplifying mode according to an envelope tracking method, and to amplify the second radio-frequency signal in an amplifying mode according to an average power tracking method.Type: ApplicationFiled: June 23, 2020Publication date: December 31, 2020Inventors: Shinya HITOMI, Hidenori OBIYA, Hirotsugu MORI
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Publication number: 20200412307Abstract: A radio-frequency circuit includes a power amplifying circuit configured to amplify a first radio-frequency signal having a first channel bandwidth and a second radio-frequency signal having a second channel bandwidth greater than the first channel bandwidth. The power amplifying circuit is configured to amplify the first radio-frequency signal in an amplifying mode according to an average power tracking method, and to amplify the second radio-frequency signal in an amplifying mode according to an envelope tracking method.Type: ApplicationFiled: June 23, 2020Publication date: December 31, 2020Inventors: Shinya HITOMI, Hidenori OBIYA, Hirotsugu MORI
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Publication number: 20200395962Abstract: A radio-frequency circuit includes a first power amplifier that outputs a first transmission signal and a second power amplifier that outputs a second transmission signal having a frequency different from a frequency of the first transmission signal. In a period in which the first transmission signal the second transmission signal are simultaneously outputted, at least one of the first power amplifier or the second power amplifier reduces transmission power of the at least one of the first power amplifier or the second power amplifier to cause a power component of intermodulation distortion superimposed on a transmission signal output from the first power amplifier and the second power amplifier to be less than or equal to a threshold value.Type: ApplicationFiled: June 10, 2020Publication date: December 17, 2020Inventors: Shinya HITOMI, Hirotsugu MORI
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Publication number: 20200396700Abstract: A communication circuit includes a first transfer circuit that includes a first transmitter circuit, and a second transfer circuit that includes a second transmitter circuit that can transmit a signal simultaneously with the first transmitter circuit. The second transmitter circuit is configured to be placed in a transmission halt state when a difference between requested power and scheduled power is greater than a predetermined value, the requested power being requested transmission power, the scheduled power being transmission power to be transmitted based on the requested power.Type: ApplicationFiled: June 10, 2020Publication date: December 17, 2020Inventors: Shinya HITOMI, Hidenori OBIYA, Hirotsugu MORI