Patents by Inventor Yoshiyuki Yamagata
Yoshiyuki Yamagata 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: 8238385Abstract: A data processing circuit comprising: a first circuit configured to time-division-multiplex a first digital signal synchronous with a clock signal input from an external controller and a second digital signal asynchronous with the clock signal; and a second circuit configured to output a digital signal time-division-multiplexed by the first circuit to the controller.Type: GrantFiled: July 17, 2007Date of Patent: August 7, 2012Assignees: Semiconductor Components Industries, LLC, Sanyo Semiconductor Co., Ltd.Inventors: Hiroyuki Arai, Tetsuya Tokunaga, Yasuo Osawa, Kensuke Goto, Yoshiyuki Yamagata, Takeshi Kimura
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Patent number: 8154496Abstract: This invention offers an LCD drive circuit that prevents conversion to a wrong duty driving state and an unintended display caused by taking in of serial data corresponding to the wrong duty driving state. The LCD drive circuit is provided with an LCD drive signal generation circuit that generates driving signals to turn LCD segments on and off based on serial data received by a serial data receiving circuit and is switchable between a ¼ duty driving state and a ? duty driving state. The LCD drive circuit is also provided with a driving state setting circuit that sets the LCD drive signal generation circuit to the ¼ duty driving state based on identification data when the serial data receiving circuit receives the serial data corresponding to the ¼ duty driving state and thereafter forbids the LCD drive signal generation circuit to take in serial data corresponding to the ? duty driving state when the serial data receiving circuit receives the serial data corresponding to the ? duty driving state.Type: GrantFiled: November 20, 2008Date of Patent: April 10, 2012Assignees: SANYO Semiconductor Co., Ltd., Semiconductor Components Industries, LLCInventors: Yoshiyuki Yamagata, Tetsuya Tokunaga, Yasuo Osawa, Kensuke Goto
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Patent number: 8081095Abstract: A data output circuit includes: a data generating circuit configured to generate output data; and a serial output circuit configured to receive an address corresponding to the data generating circuit, hold a parallel data input during a time period over which the address is being received, and serially output the output data generated by the data generating circuit and the held parallel data in accordance with an output direction signal for directing output of the data.Type: GrantFiled: June 6, 2008Date of Patent: December 20, 2011Assignees: Semiconductor Components Industries, LLC, Sanyo Semiconductor Co., Ltd.Inventors: Yasuo Osawa, Hiroyuki Arai, Tetsuya Tokunaga, Yoshiyuki Yamagata
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Patent number: 8082375Abstract: This invention offers a data communication system that can perform data communication and detection of a data read-in request signal while reducing the number of communication lines to three, and is tolerant of noise. The data communication between a microcomputer and a key scan IC and the detection of the data read-in request signal are performed through a control line, a clock line and a data line. The data communication system is provided with a data line control circuit that controls the data line so that outputting of the data read-in signal RDRQ to the data line is disabled when first command data is inputted to the key scan IC through the data line, and that the outputting of the data read-in request signal RDRQ to the data line is enabled when second command data is inputted from the microcomputer to the key scan IC through the data line.Type: GrantFiled: August 5, 2008Date of Patent: December 20, 2011Assignees: SANYO Semiconductor Co., Ltd., Semiconductor Components Industries, LLCInventors: Tetsuya Tokunaga, Yoshiyuki Yamagata, Yasuo Osawa, Kensuke Goto
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Patent number: 7619547Abstract: A serial-to-parallel converter circuit comprising: an m-bit serial data holding unit to be input with serial data whose input bit number is set to m or n (<m) bits within a transfer period and a serial clock synchronized therewith, and to shift and hold the serial data by one bit based on the serial clock; an input mode identifying unit to identify whether the input bit number is m or n bits, based on a count value obtained by counting the number of generation of the serial clock during the transfer period; and a parallel data generating unit to output the held m-bit data as first parallel data when the input bit number is identified as m bits, and to output m-bit data obtained by adding predetermined (m?n)-bit data to the held n-bit data as second parallel data when the input bit number is identified as n bits.Type: GrantFiled: March 7, 2008Date of Patent: November 17, 2009Assignees: Sanyo Electric Co., Ltd., Sanyo Semiconductor Co., Ltd.Inventors: Yoshiyuki Yamagata, Tetsuya Tokunaga, Yasuo Osawa, Kensuke Goto
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Publication number: 20090140969Abstract: This invention offers an LCD drive circuit that prevents conversion to a wrong duty driving state and an unintended display caused by taking in of serial data corresponding to the wrong duty driving state. The LCD drive circuit is provided with an LCD drive signal generation circuit that generates driving signals to turn LCD segments on and off based on serial data received by a serial data receiving circuit and is switchable between a ¼ duty driving state and a ? duty driving state. The LCD drive circuit is also provided with a driving state setting circuit that sets the LCD drive signal generation circuit to the ¼ duty driving state based on identification data when the serial data receiving circuit receives the serial data corresponding to the ¼ duty driving state and thereafter forbids the LCD drive signal generation circuit to take in serial data corresponding to the ? duty driving state when the serial data receiving circuit receives the serial data corresponding to the ? duty driving state.Type: ApplicationFiled: November 20, 2008Publication date: June 4, 2009Applicants: SANYO Electric Co., Ltd., SANYO Semiconductor Co., Ltd.Inventors: Yoshiyuki Yamagata, Tetsuya Tokunaga, Yasuo Osawa, Kensuke Goto
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Publication number: 20090043929Abstract: This invention offers a data communication system that can perform data communication and detection of a data read-in request signal while reducing the number of communication lines to three, and is tolerant of noise. The data communication between a microcomputer and a key scan IC and the detection of the data read-in request signal are performed through a control line, a clock line and a data line. The data communication system is provided with a data line control circuit that controls the data line so that outputting of the data read-in signal RDRQ to the data line is disabled when first command data is inputted to the key scan IC through the data line, and that the outputting of the data read-in request signal RDRQ to the data line is enabled when second command data is inputted from the microcomputer to the key scan IC through the data line.Type: ApplicationFiled: August 5, 2008Publication date: February 12, 2009Applicants: SANYO Electric Co., Ltd.Inventors: Tetsuya TOKUNAGA, Yoshiyuki Yamagata, Yasuo Osawa, Kensuke Goto
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Publication number: 20080303761Abstract: A data output circuit includes: a data generating circuit configured to generate output data; and a serial output circuit configured to receive an address corresponding to the data generating circuit, hold a parallel data input during a time period over which the address is being received, and serially output the output data generated by the data generating circuit and the held parallel data in accordance with an output direction signal for directing output of the data.Type: ApplicationFiled: June 6, 2008Publication date: December 11, 2008Applicants: Sanyo Electric Co., Ltd., Sanyo Semiconductor Co., Ltd.Inventors: Yasuo Osawa, Hiroyuki Arai, Tetsuya Tokunaga, Yoshiyuki Yamagata
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Publication number: 20080218389Abstract: A serial-to-parallel converter circuit comprising: an m-bit serial data holding unit to be input with serial data whose input bit number is set to m or n (<m) bits within a transfer period and a serial clock synchronized therewith, and to shift and hold the serial data by one bit based on the serial clock; an input mode identifying unit to identify whether the input bit number is m or n bits, based on a count value obtained by counting the number of generation of the serial clock during the transfer period; and a parallel data generating unit to output the held m-bit data as first parallel data when the input bit number is identified as m bits, and to output m-bit data obtained by adding predetermined (m-n)-bit data to the held n-bit data as second parallel data when the input bit number is identified as n bits.Type: ApplicationFiled: March 7, 2008Publication date: September 11, 2008Applicants: Sanyo Electric Co., Ltd., Sanyo Semiconductor Co., Ltd.Inventors: Yoshiyuki Yamagata, Tetsuya Tokunaga, Yasuo Osawa, Kensuke Goto
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Publication number: 20080019400Abstract: A data processing circuit comprising: a first circuit configured to time-division-multiplex a first digital signal synchronous with a clock signal input from an external controller and a second digital signal asynchronous with the clock signal; and a second circuit configured to output a digital signal time-division-multiplexed by the first circuit to the controller.Type: ApplicationFiled: July 17, 2007Publication date: January 24, 2008Applicant: Sanyo Electric Co., Ltd.Inventors: Hiroyuki Arai, Tetsuya Tokunaga, Yasuo Osawa, Kensuke Goto, Yoshiyuki Yamagata, Takeshi Kimura
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Publication number: 20030065717Abstract: Real-time update of data between a client and a server is enabled to reduce load on a network. There is provided a data distributing method for distributing updated data to a client by a push type distribution after data of a data base of a server is updated, to share data between the server and the client, the method comprising: causing the server to store a client management information including a data range, which the client is using, in the data base of the server, and causing the server to identify data, which is to be transmitted to the client, by referring to the client management information before transmitting data.Type: ApplicationFiled: September 23, 2002Publication date: April 3, 2003Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hidemitsu Saito, Yasunori Onishi, Yoshiyuki Yamagata