Patents by Inventor Hirotaka Osawa

Hirotaka Osawa 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).

  • Publication number: 20240120693
    Abstract: A connector with a floating mechanism includes a socket movable shell configured to cover an outside of a socket movable housing and to move together with the socket movable housing, and a conductive shell connecting unit configured to constantly provide connection between the socket movable shell and a socket fixing shell, the shell connecting unit being interposed between the socket movable shell and the socket fixing shell.
    Type: Application
    Filed: June 1, 2023
    Publication date: April 11, 2024
    Inventors: Hirotaka TSUCHIYA, Yoji OCHI, Fumio OSAWA
  • Patent number: 10943522
    Abstract: A display device comprises a display panel and a display driver. The display panel comprises a plurality of gate lines. The display driver is configured to control, based on a first image data, an order in which the plurality of gate lines are driven.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: March 9, 2021
    Assignee: Synaptics Incorporated
    Inventors: Takahide Iwase, Hirotaka Osawa
  • Patent number: 7504903
    Abstract: In a communication semiconductor integrated circuit device, an oscillator of a PLL circuit can operate in a plurality of frequency bands. With a control voltage (Vc) of the oscillator fixed to a predetermined value (VDC), an oscillation frequency of the oscillator is measured for each band to be stored in a storage. When the PLL operates, a setting value to specify a band is compared with the measured frequency values stored in the storage. As a result of the comparison, a band to be actually used by the oscillator is determined.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: March 17, 2009
    Assignees: Renesas Technology Corp., TTPCom Limited
    Inventors: Masumi Kasahara, Hirotaka Osawa, Robert Astle Henshaw
  • Patent number: 7499688
    Abstract: In a communication semiconductor integrated circuit device using offset PLL architectures and including an oscillator circuit and a frequency divider circuit generating an intermediate frequency signal, the oscillator circuit includes an oscillator, a programmable frequency divider which frequency-divides the oscillation signal in accordance with frequency division information, a phase comparator detecting a phase difference between an output signal of the programmable frequency divider and a reference signal, and a frequency control unit for outputting a signal indicative of the phase difference and controlling the oscillation frequency of the oscillator, wherein a frequency division ratio generator circuit generates an integer part I and a fraction part F/G based on band information concerning the use frequency band and mode information along with channel information and for producing the frequency division ratio information to thereby give it to the programmable frequency divider.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: March 3, 2009
    Assignees: Renesas Technology Corp., TTPOM Limited
    Inventors: Toshiya Uozumi, Yasuyuki Kimura, Hirotaka Osawa, Satoru Yamamoto, Robert Astel Henshaw
  • Patent number: 7499689
    Abstract: In a communication semiconductor integrated circuit device using offset PLL architectures and including an oscillator circuit and a frequency divider circuit generating an intermediate frequency signal, the oscillator circuit includes an oscillator, a programmable frequency divider which frequency-divides the oscillation signal in accordance with frequency division information, a phase comparator detecting a phase difference between an output signal of the programmable frequency divider and a reference signal, and a frequency control unit for outputting a signal indicative of the phase difference and controlling the oscillation frequency of the oscillator, wherein a frequency division ratio generator circuit generates an integer part I and a fraction part F/G based on band information concerning the use frequency band and mode information along with channel information and for producing the frequency division ratio information to thereby give it to the programmable frequency divider.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: March 3, 2009
    Assignees: Renesas Technology Corp., TTPCOM Limited
    Inventors: Toshiya Uozumi, Yasuyuki Kimura, Hirotaka Osawa, Satoru Yamamoto, Robert Astel Henshaw
  • Publication number: 20080278245
    Abstract: An RF IC in which a PLL circuit including a loop filter is incorporated into a semiconductor chip is achieved without increasing power consumption or chip size. The RF IC includes a VCO capable of switching oscillation frequency bands, a variable frequency divider, a phase comparator, and a loop filter, which are contained in the PLL loop. A discrimination circuit discriminates a lead or lag in a phase of an output signal from the variable frequency divider against a reference signal and an automatic band selecting circuit generates a signal for switching the frequency bands of the VCO based on output from the discrimination circuit. While switching the frequency bands of the VCO by means of bisection algorithm, the RF IC detects an optimum frequency band, and adds offset to it to determine a final usable frequency band.
    Type: Application
    Filed: July 10, 2008
    Publication date: November 13, 2008
    Inventors: Toshiya Uozumi, Hirotaka Osawa, Jiro Shinbo, Satoru Yamamoto
  • Patent number: 7423493
    Abstract: An RF IC in which a PLL circuit including a loop filter is incorporated into a semiconductor chip is achieved without increasing power consumption or chip size. The RF IC includes a VCO capable of switching oscillation frequency bands, a variable frequency divider, a phase comparator, and a loop filter, which are contained in the PLL loop. A discrimination circuit discriminates a lead or lag in a phase of an output signal from the variable frequency divider against a reference signal and an automatic band selecting circuit generates a signal for switching the frequency bands of the VCO based on output from the discrimination circuit. While switching the frequency bands of the VCO by means of bisection algorithm, the RF IC detects an optimum frequency band, and adds offset to it to determine a final usable frequency band.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: September 9, 2008
    Assignee: Renesas Technology Corporation
    Inventors: Toshiya Uozumi, Hirotaka Osawa, Jiro Shinbo, Satoru Yamamoto
  • Publication number: 20070164828
    Abstract: In a communication semiconductor integrated circuit device using offset PLL architectures and including an oscillator circuit and a frequency divider circuit generating an intermediate frequency signal, the oscillator circuit includes an oscillator, a programmable frequency divider which frequency-divides the oscillation signal in accordance with frequency division information, a phase comparator detecting a phase difference between an output signal of the programmable frequency divider and a reference signal, and a frequency control unit for outputting a signal indicative of the phase difference and controlling the oscillation frequency of the oscillator, wherein a frequency division ratio generator circuit generates an integer part I and a fraction part F/G based on band information concerning the use frequency band and mode information along with channel information and for producing the frequency division ratio information to thereby give it to the programmable frequency divider.
    Type: Application
    Filed: March 26, 2007
    Publication date: July 19, 2007
    Inventors: Toshiya Uozumi, Yasuyuki Kimura, Hirotaka Osawa, Satoru Yamamoto, Robert Henshaw
  • Publication number: 20070161360
    Abstract: In a communication semiconductor integrated circuit device using offset PLL architectures and including an oscillator circuit and a frequency divider circuit generating an intermediate frequency signal, the oscillator circuit includes an oscillator, a programmable frequency divider which frequency-divides the oscillation signal in accordance with frequency division information, a phase comparator detecting a phase difference between an output signal of the programmable frequency divider and a reference signal, and a frequency control unit for outputting a signal indicative of the phase difference and controlling the oscillation frequency of the oscillator, wherein a frequency division ratio generator circuit generates an integer part I and a fraction part F/G based on band information concerning the use frequency band and mode information along with channel information and for producing the frequency division ratio information to thereby give it to the programmable frequency divider.
    Type: Application
    Filed: March 26, 2007
    Publication date: July 12, 2007
    Inventors: Toshiya Uozumi, Yasuyuki Kimura, Hirotaka Osawa, Satoru Yamamoto, Robert Henshaw
  • Patent number: 7205850
    Abstract: In a communication semiconductor integrated circuit device using offset PLL architectures and including an oscillator circuit and a frequency divider circuit generating an intermediate frequency signal, the oscillator circuit includes an oscillator, a programmable frequency divider which frequency-divides the oscillation signal in accordance with frequency division information, a phase comparator detecting a phase difference between an output signal of the programmable frequency divider and a reference signal, and a frequency control unit for outputting a signal indicative of the phase difference and controlling the oscillation frequency of the oscillator, wherein a frequency division ratio generator circuit generates an integer part I and a fraction part F/G based on band information concerning the use frequency band and mode information along with channel information and for producing the frequency division ratio information to thereby give it to the programmable frequency divider.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: April 17, 2007
    Assignees: Renesas Technology Corp., TTPCom Limited
    Inventors: Toshiya Uozumi, Yasuyuki Kimura, Hirotaka Osawa, Satoru Yamamoto, Robert Astel Henshaw
  • Publication number: 20070052488
    Abstract: In a communication semiconductor integrated circuit device, an oscillator (VCO 10) of a PLL circuit can operate in a plurality of frequency bands. With a control voltage (Vc) of the oscillator fixed to a predetermined value (VDC), an oscillation frequency of the oscillator is measured for each band to be stored in a storage (18). When the PLL operates, a setting value to specify a band is compared with the measured frequency values stored in the storage. As a result of the comparison, a band to be actually used by the oscillator is determined.
    Type: Application
    Filed: November 6, 2006
    Publication date: March 8, 2007
    Inventors: Masumi Kasahara, Hirotaka Osawa, Robert Henshaw
  • Patent number: 7148764
    Abstract: In a communication semiconductor integrated circuit device, an oscillator (VCO 10) of a PLL circuit can operate in a plurality of frequency bands. With a control voltage (Vc) of the oscillator fixed to a predetermined value (VDC), an oscillation frequency of the oscillator is measured for each band to be stored in a storage (18). When the PLL operates, a setting value to specify a band is compared with the measured frequency values stored in the storage. As a result of the comparison, a band to be actually used by the oscillator is determined.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: December 12, 2006
    Assignees: Renesas Technology Corp., TTPCom Limited
    Inventors: Masumi Kasahara, Hirotaka Osawa, Robert Astle Henshaw
  • Publication number: 20060267699
    Abstract: An RF IC in which a PLL circuit including a loop filter is incorporated into a semiconductor chip is achieved without increasing power consumption or chip size. The RF IC includes a VCO capable of switching oscillation frequency bands, a variable frequency divider, a phase comparator, and a loop filter, which are contained in the PLL loop. A discrimination circuit discriminates a lead or lag in a phase of an output signal from the variable frequency divider against a reference signal and an automatic band selecting circuit generates a signal for switching the frequency bands of the VCO based on output from the discrimination circuit. While switching the frequency bands of the VCO by means of bisection algorithm, the RF IC detects an optimum frequency band, and adds offset to it to determine a final usable frequency band.
    Type: Application
    Filed: August 10, 2006
    Publication date: November 30, 2006
    Inventors: Toshiya Uozumi, Hirotaka Osawa, Jiro Shinbo, Satoru Yamamoto
  • Patent number: 7123102
    Abstract: An RF IC in which a PLL circuit including a loop filter is incorporated into a semiconductor chip is achieved without increasing power consumption or chip size. The RF IC includes a VCO capable of switching oscillation frequency bands, a variable frequency divider, a phase comparator, and a loop filter, which are contained in the PLL loop. A discrimination circuit discriminates a lead or lag in a phase of an output signal from the variable frequency divider against a reference signal and an automatic band selecting circuit generates a signal for switching the frequency bands of the VCO based on output from the discrimination circuit. While switching the frequency bands of the VCO by means of bisection algorithm, the RF IC detects an optimum frequency band, and adds offset to it to determine a final usable frequency band.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: October 17, 2006
    Assignee: Renesas Technology Corporation
    Inventors: Toshiya Uozumi, Hirotaka Osawa, Jiro Shinbo, Satoru Yamamoto
  • Publication number: 20060014513
    Abstract: In a communication semiconductor integrated circuit device using offset PLL architectures and including an oscillator circuit and a frequency divider circuit generating an intermediate frequency signal, the oscillator circuit includes an oscillator, a programmable frequency divider which frequency-divides the oscillation signal in accordance with frequency division information, a phase comparator detecting a phase difference between an output signal of the programmable frequency divider and a reference signal, and a frequency control unit for outputting a signal indicative of the phase difference and controlling the oscillation frequency of the oscillator, wherein a frequency division ratio generator circuit generates an integer part I and a fraction part F/G based on band information concerning the use frequency band and mode information along with channel information and for producing the frequency division ratio information to thereby give it to the programmable frequency divider.
    Type: Application
    Filed: July 15, 2005
    Publication date: January 19, 2006
    Inventors: Toshiya Uozumi, Yasuyuki Kimura, Hirotaka Osawa, Satoru Yamamoto, Robert Henshaw
  • Publication number: 20050068119
    Abstract: An RF IC in which a PLL circuit including a loop filter is incorporated into a semiconductor chip is achieved without increasing power consumption or chip size. The RF IC includes a VCO capable of switching oscillation frequency bands, a variable frequency divider, a phase comparator, and a loop filter, which are contained in the PLL loop. A discrimination circuit discriminates a lead or lag in a phase of an output signal from the variable frequency divider against a reference signal and an automatic band selecting circuit generates a signal for switching the frequency bands of the VCO based on output from the discrimination circuit. While switching the frequency bands of the VCO by means of bisection algorithm, the RF IC detects an optimum frequency band, and adds offset to it to determine a final usable frequency band.
    Type: Application
    Filed: September 22, 2004
    Publication date: March 31, 2005
    Inventors: Toshiya Uozumi, Hirotaka Osawa, Jiro Shinbo, Satoru Yamamoto
  • Publication number: 20050068111
    Abstract: In a communication semiconductor integrated circuit device, an oscillator (VCO 10) of a PLL circuit can operate in a plurality of frequency bands. With a control voltage (Vc) of the oscillator fixed to a predetermined value (VDC), an oscillation frequency of the oscillator is measured for each band to be stored in a storage (18). When the PLL operates, a setting value to specify a band is compared with the measured frequency values stored in the storage. As a result of the comparison, a band to be actually used by the oscillator is determined.
    Type: Application
    Filed: November 13, 2002
    Publication date: March 31, 2005
    Inventors: Masumi Kasahara, Hirotaka Osawa, Robert Henshaw