Patents by Inventor Hiroki Kihara

Hiroki Kihara 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: 20070057712
    Abstract: The present invention provides for a self-correcting state circuit. A first flip flop is configured to receive a clock input and a first data input, and to generate a first output in response to the clock input and the first data input. A second flip flop is coupled to the first flip flop and configured to receive the clock input and to receive the first output as a second data input, and to generate a second output in response to the clock input and the first output. A first correction circuit is coupled to the second flip flop and configured to generate a corrected output. A third flip flop is coupled to the first correction circuit and configured to receive the clock input and to receive the corrected output as a third data input, and to generate a third output in response to the clock input and the third data input.
    Type: Application
    Filed: August 29, 2006
    Publication date: March 15, 2007
    Inventors: David Boerstler, Eric Lukes, Hiroki Kihara, James Strom
  • Publication number: 20060289862
    Abstract: Systems and methods for positioning thermal sensors within an integrated circuit in a manner that provides useful thermal measurements corresponding to different parts of the integrated circuit. In one embodiment, an integrated circuit includes multiple, duplicate functional blocks. A separate thermal sensor is coupled to each of the duplicate functional blocks, preferably in the same relative location on each of the duplicate functional blocks, and preferably at a hotspot. One embodiment also includes thermal sensors on one or more functional blocks of other types in the integrated circuit. One embodiment includes a thermal sensor positioned at a cool spot, such as at the edge of the integrated circuit chip. Each of the thermal sensors may have ports to enable power and ground connections or data connections between the sensors and external components or devices.
    Type: Application
    Filed: June 28, 2005
    Publication date: December 28, 2006
    Inventors: Munehiro Yoshida, Daniel Stasiak, Michael Wang, Charles Johns, Hiroki Kihara, Tetsuji Tamura, Kazuaki Yazawa, Iwao Takiguchi
  • Patent number: 7119587
    Abstract: The present invention provides for state correction. A first value in a state circuit is received from a flip flop. The received value is transmitted to a second flip flop. The received value within the second flip flop is altered if an error condition arises. The received value is transmitted to a third flip flop. In one aspect, the received value transmitted to the third flip flop comprises an unaltered received value. In another aspect, the received value transmitted to the third flip flop comprises transmitting an altered received value. This allows for an incorrect state within the state machine to change to a correct state after a few clock pulses.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: October 10, 2006
    Assignee: International Business Machines Corporation
    Inventors: David William Boerstler, Eric John Lukes, Hiroki Kihara, James David Strom
  • Patent number: 7102417
    Abstract: An integrated circuit die is disclosed including a temperature detection circuit and a memory configured to store calibration data. The temperature detection circuit is operatively coupled to the memory, and receives an input signal. The temperature detection circuit is configured to produce an output signal dependent upon the input signal and indicative of whether a temperature of the integrated circuit die is greater than a selected temperature. During a normal operating mode of the integrated circuit die the input signal comprises the calibration data. A system and methods for calibrating the temperature detection circuit are also described.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: September 5, 2006
    Assignee: International Business Machines Corporation
    Inventors: Melia F. Gordon, Charles Ray Johns, Hiroki Kihara, Iwao Takiguchi, Tetsuji Tamura, Michael Fan Wang, Kazuaki Yazawa, Munehiro Yoshida
  • Patent number: 7061284
    Abstract: The present invention provides for state correction. A first flip flop coupled to a second flip flop. A state correction circuit coupled to the output of the second flip flop. A third flip flop is coupled to the output of the state correction circuit. A fourth flip flop is coupled to the output of the third flip flop.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: June 13, 2006
    Assignee: International Business Machines Corporation
    Inventors: David William Boerstler, Eric John Lukes, Hiroki Kihara, James David Strom
  • Publication number: 20060097757
    Abstract: An integrated circuit die is disclosed including a temperature detection circuit and a memory configured to store calibration data. The temperature detection circuit is operatively coupled to the memory, and receives an input signal. The temperature detection circuit is configured to produce an output signal dependent upon the input signal and indicative of whether a temperature of the integrated circuit die is greater than a selected temperature. During a normal operating mode of the integrated circuit die the input signal comprises the calibration data. A system and methods for calibrating the temperature detection circuit are also described.
    Type: Application
    Filed: November 5, 2004
    Publication date: May 11, 2006
    Applicants: International Business Machines Corporation, Sony Computer Entertainment Inc., Toshiba America Electronic Components, Inc., Kabushiki Kaisha Toshiba
    Inventors: Melia Gordon, Charles Johns, Hiroki Kihara, Iwao Takiguchi, Tetsuji Tamura, Michael Wang, Kazuaki Yazawa, Munehiro Yoshida
  • Publication number: 20050262406
    Abstract: The present invention provides for state correction. A first value in a state circuit is received from a flip flop. The received value is transmitted to a second flip flop. The received value within the second flip flop is altered if an error condition arises. The received value is transmitted to a third flip flop. In one aspect, the received value transmitted to the third flip flop comprises an unaltered received value. In another aspect, the received value transmitted to the third flip flop comprises transmitting an altered received value. This allows for an incorrect state within the state machine to change to a correct state after a few clock pulses.
    Type: Application
    Filed: May 20, 2004
    Publication date: November 24, 2005
    Applicants: International Business Machines Corporation, Sony Computer Entertainment Inc.
    Inventors: David Boerstler, Eric Lukes, Hiroki Kihara, James Strom
  • Publication number: 20050261866
    Abstract: The present invention provides for determining a temperature in a chip. A voltage across a thermal diode is generated. It is then determined whether the voltage across the first thermal diode exceeds a threshold value. The voltage is correlated with a range of values. The determination of whether the voltage across the thermal diode exceeds the threshold value is correlated with the correlation of the voltage with a range of values. Through the use of voltage level sensors, the use of C4 input/output pins are avoided.
    Type: Application
    Filed: May 20, 2004
    Publication date: November 24, 2005
    Applicants: International Business Machines Corporation, Sony Computer Entertainment Inc.
    Inventors: David Boerstler, Hiroki Kihara, Robert Putney, Daniel Stasiak, Michael Wang
  • Publication number: 20050262407
    Abstract: The present invention provides for state correction. A first flip flop coupled to a second flip flop. A state correction circuit coupled to the output of the second flip flop. A third flip flop is coupled to the output of the state correction circuit. A fourth flip flop is coupled to the output of the third flip flop.
    Type: Application
    Filed: May 20, 2004
    Publication date: November 24, 2005
    Applicants: International Business Machines Corporation, Sony Computer Entertainment Inc.
    Inventors: David Boerstler, Eric Lukes, Hiroki Kihara, James Strom