Patents by Inventor Yoshinori Asami
Yoshinori Asami 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: 20240152099Abstract: An electronic apparatus includes a secondary battery, a first power feeder, a second power feeder, and a processor. The first power feeder feeds power to the secondary battery. The second power feeder feeds power to the secondary battery at a current larger than a current fed by the first power feeder. The processor detects a voltage of the secondary battery, and determines a remaining power of the secondary battery based on a comparison of the detected voltage with first or second reference values. The first reference value is a predetermined value set in accordance with the current fed by the first power feeder. The second reference value is a predetermined value set in accordance with the current fed by the second power feeder, and is higher than the first reference value.Type: ApplicationFiled: January 15, 2024Publication date: May 9, 2024Applicant: CASIO COMPUTER CO., LTD.Inventors: Fumiaki OCHIAI, Yoshinori ASAMI, Yohei KAWAGUCHI, Katsuhiko OBATA
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Patent number: 11906936Abstract: An electronic apparatus includes a secondary battery, a first power feeder, a second power feeder, and a processor. The first power feeder feeds power to the secondary battery. The second power feeder feeds power to the secondary battery at a current larger than a current fed by the first power feeder. The processor selects an operation mode of the electronic apparatus based on different reference values selected based on whether the first power feeder is feeding power to the secondary battery or the second power feeder is feeding power to the secondary battery.Type: GrantFiled: July 22, 2021Date of Patent: February 20, 2024Assignee: CASIO COMPUTER CO., LTD.Inventors: Fumiaki Ochiai, Yoshinori Asami, Yohei Kawaguchi, Katsuhiko Obata
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Patent number: 11295686Abstract: A liquid crystal control circuit includes: a first terminal that outputs a rewriting signal for rewriting a plurality of pixels; a second terminal that periodically designates a start timing of the rewriting signal; a third terminal that outputs a polarity signal for designating polarity of AC voltage; a first circuit that identifies a next second inversion timing of any first inversion timing at which the polarity is inverted; a calculator that calculates a first start timing after the first inversion timing based on the start timing; a second circuit that determines whether the second inversion timing is within a period from a predetermined time before the first start timing to the first start timing; and an inversion unit that inverts polarity of the polarity signal after the rewriting signal starting from the first start timing is stopped, when the second inversion timing is within the period.Type: GrantFiled: September 8, 2020Date of Patent: April 5, 2022Assignee: CASIO COMPUTER CO., LTD.Inventors: Takahiro Ono, Fumiaki Ochiai, Yoshinori Asami, Eiji Yamakawa
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Publication number: 20210351596Abstract: An electronic timepiece includes a secondary battery, a first power feeder, a second power feeder, and a processor. The first power feeder feeds power to the secondary battery. The second power feeder feeds power to the secondary battery at a current larger than a current fed by the first power feeder. The processor determines remaining power of the secondary battery based on different references that are a reference of when the first power feeder is feeding the power to the secondary battery and a reference of when the second power feeder is feeding the power to the secondary battery.Type: ApplicationFiled: July 22, 2021Publication date: November 11, 2021Applicant: CASIO COMPUTER CO., LTD.Inventors: Fumiaki OCHIAI, Yoshinori ASAMI, Yohei KAWAGUCHI, Katsuhiko OBATA
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Patent number: 11108258Abstract: An electronic timepiece includes a secondary battery, a first power feeder, a second power feeder, and a processor. The first power feeder feeds power to the secondary battery. The second power feeder feeds power to the secondary battery at a current larger than a current fed by the first power feeder. The processor determines remaining power of the secondary battery based on different references that are a reference of when the first power feeder is feeding the power to the secondary battery and a reference of when the second power feeder is feeding the power to the secondary battery.Type: GrantFiled: February 18, 2019Date of Patent: August 31, 2021Assignee: CASIO COMPUTER CO., LTD.Inventors: Fumiaki Ochiai, Yoshinori Asami, Yohei Kawaguchi, Katsuhiko Obata
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Publication number: 20200402474Abstract: A liquid crystal control circuit includes: a first terminal that outputs a rewriting signal for rewriting a plurality of pixels; a second terminal that periodically designates a start timing of the rewriting signal; a third terminal that outputs a polarity signal for designating polarity of AC voltage; a first circuit that identifies a next second inversion timing of any first inversion timing at which the polarity is inverted; a calculator that calculates a first start timing after the first inversion timing based on the start timing; a second circuit that determines whether the second inversion timing is within a period from a predetermined time before the first start timing to the first start timing; and an inversion unit that inverts polarity of the polarity signal after the rewriting signal starting from the first start timing is stopped, when the second inversion timing is within the period.Type: ApplicationFiled: September 8, 2020Publication date: December 24, 2020Inventors: Takahiro ONO, Fumiaki OCHIAI, Yoshinori ASAMI, Eiji YAMAKAWA
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Patent number: 10783845Abstract: A liquid crystal control circuit is provided for driving a MIP liquid crystal panel. The MIP liquid crystal panel has a plurality of pixels, each of which includes a memory element and a display element. The memory element holds electric potential depending on an image signal. The display element is applied voltage depending on the electric potential which the memory element holds. The liquid crystal control circuit includes an inversion unit that inverts polarity of AC voltage in a first mode in which an enable signal is output. The AC voltage being is applied to the display element in synchronization with outputting of the enable signal. The enable signal activates the image signal output to the MIP liquid crystal panel.Type: GrantFiled: March 19, 2019Date of Patent: September 22, 2020Assignee: Casio Computer Co., Ltd.Inventors: Takahiro Ono, Fumiaki Ochiai, Yoshinori Asami, Eiji Yamakawa
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Patent number: 10568037Abstract: An electronic apparatus includes a first power feeder, a positioning-satellite-signal receiver, and a CPU. The first power feeder receives power from an external device and feeds the power to a secondary battery. The positioning-satellite-signal receiver receives a satellite signal transmitted by a positioning satellite. The CPU limits a receiving operation of the positioning-satellite-signal receiver when the first power feeder is receiving the power from the external device.Type: GrantFiled: February 17, 2019Date of Patent: February 18, 2020Assignee: CASIO COMPUTER CO., LTD.Inventors: Fumiaki Ochiai, Yoshinori Asami, Yohei Kawaguchi, Katsuhiko Obata
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Publication number: 20190295486Abstract: A liquid crystal control circuit includes: a first terminal that outputs a rewriting signal for rewriting a plurality of pixels; a second terminal that periodically designates a start timing of the rewriting signal; a third terminal that outputs a polarity signal for designating polarity of AC voltage; a first circuit that identifies a next second inversion timing of any first inversion timing at which the polarity is inverted; a calculator that calculates a first start timing after the first inversion timing based on the start timing; a second circuit that determines whether the second inversion timing is within a period from a predetermined time before the first start timing to the first start timing; and an inversion unit that inverts polarity of the polarity signal after the rewriting signal starting from the first start timing is stopped, when the second inversion timing is within the period.Type: ApplicationFiled: March 19, 2019Publication date: September 26, 2019Inventors: Takahiro ONO, Fumiaki OCHIAI, Yoshinori ASAMI, Eiji YAMAKAWA
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Publication number: 20190295485Abstract: A liquid crystal control circuit is provided for driving a MIP liquid crystal panel. The MIP liquid crystal panel has a plurality of pixels, each of which includes a memory element and a display element. The memory element holds electric potential depending on an image signal. The display element is applied voltage depending on the electric potential which the memory element holds. The liquid crystal control circuit includes an inversion unit that inverts polarity of AC voltage in a first mode in which an enable signal is output. The AC voltage being is applied to the display element in synchronization with outputting of the enable signal. The enable signal activates the image signal output to the MIP liquid crystal panel.Type: ApplicationFiled: March 19, 2019Publication date: September 26, 2019Inventors: Takahiro ONO, Fumiaki OCHIAI, Yoshinori ASAMI, Eiji YAMAKAWA
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Publication number: 20190281557Abstract: An electronic apparatus includes a first power feeder, a positioning-satellite-signal receiver, and a CPU. The first power feeder receives power from an external device and feeds the power to a secondary battery. The positioning-satellite-signal receiver receives a satellite signal transmitted by a positioning satellite. The CPU limits a receiving operation of the positioning-satellite-signal receiver when the first power feeder is receiving the power from the external device.Type: ApplicationFiled: February 17, 2019Publication date: September 12, 2019Applicant: CASIO COMPUTER CO., LTD.Inventors: Fumiaki OCHIAI, Yoshinori ASAMI, Yohei KAWAGUCHI, Katsuhiko OBATA
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Publication number: 20190280517Abstract: An electronic timepiece includes a secondary battery, a first power feeder, a second power feeder, and a processor. The first power feeder feeds power to the secondary battery. The second power feeder feeds power to the secondary battery at a current larger than a current fed by the first power feeder. The processor determines remaining power of the secondary battery based on different references that are a reference of when the first power feeder is feeding the power to the secondary battery and a reference of when the second power feeder is feeding the power to the secondary battery.Type: ApplicationFiled: February 18, 2019Publication date: September 12, 2019Applicant: CASIO COMPUTER CO., LTD.Inventors: Fumiaki OCHIAI, Yoshinori ASAMI, Yohei KAWAGUCHI, Katsuhiko OBATA
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Patent number: 8111590Abstract: An electronic timepiece comprises a drive module configured to drive a hand, an electricity generation module, first and second capacitor modules, the second capacitor module having smaller capacitance than the first capacitor module, and an auxiliary drive control module which causes the drive module to perform the auxiliary driving when the charge level of the second capacitor module exceeds a third level indicating an amount of electricity which enables the auxiliary driving, and waits until the charge level of the second capacitor module exceeds the third level after performing the auxiliary driving.Type: GrantFiled: December 10, 2009Date of Patent: February 7, 2012Assignee: Casio Computer Co., Ltd.Inventors: Yoshinori Asami, Tomoo Kasuo
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Publication number: 20100182880Abstract: An electronic timepiece comprises a clock module, an electricity generation module, first and second capacitor modules, the second capacitor module having a smaller capacitance than the first capacitor module, a detector configured to detect a charge level of the first capacitor module, a power supply switching module configured to be capable of connecting or disconnecting the first capacitor module to or from the clock module, a control module configured to control the power supply switching module based on the charge level detected by the detector such that the first capacitor module is disconnected from the clock module and to supply electricity from the second capacitor module to the clock module.Type: ApplicationFiled: December 10, 2009Publication date: July 22, 2010Applicant: Casio Computer Co., Ltd.Inventors: Yoshinori Asami, Tomoo Kasuo
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Publication number: 20100165797Abstract: An electronic timepiece comprises a drive module configured to drive a hand, an electricity generation module, first and second capacitor modules, the second capacitor module having smaller capacitance than the first capacitor module, and an auxiliary drive control module which causes the drive module to perform the auxiliary driving when the charge level of the second capacitor module exceeds a third level indicating an amount of electricity which enables the auxiliary driving, and waits until the charge level of the second capacitor module exceeds the third level after performing the auxiliary driving.Type: ApplicationFiled: December 10, 2009Publication date: July 1, 2010Applicant: Casio Computer Co., Ltd.Inventors: Yoshinori Asami, Tomoo Kasuo
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Patent number: 5886954Abstract: An electronic device comprising a solar cell, a secondary battery charged by an output from the solar cell, an illumination detector for detecting the brightness of the environment of the solar cell based on the output from the solar cell, a display unit, an electroluminescence (EL) element for illumining the display unit, an attitude detector for detecting an attitude of the electronic device, a driver for driving the EL element on the basis of the attitude of the electronic device detected by the attitude detector and the result of the detection by the illumination detector. Only when the illumination detector detects that the environment of the solar cell is dark, and the attitude detector detects that the electronic device takes a specified attitude, the EL element is turned on. Otherwise, the illuminator is not turned on. Thus, wasteful power consumption is suppressed to prolong the solar cell's service life.Type: GrantFiled: August 3, 1998Date of Patent: March 23, 1999Assignee: Casio Computer Co., Ltd.Inventors: Yoshinori Asami, Tomoo Kasuo, Haruo Kajitani, Akio Kurosu, Haruo Ono