Patents by Inventor Jason Sheu

Jason Sheu 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).

  • Patent number: 8526257
    Abstract: A processor includes an array of memory cells, a control module, a precharge circuit, and an amplifier module. The control module generates a clock signal at a first rate, reduces the first rate to a second rate for a predetermined period, and adjusts the second rate back to the first rate at an end of the predetermined period. The precharge circuit: based on the first rate, precharges first bit lines connected to memory cells in a first row of the array of memory cells; based on the second rate, refrains from precharging the first bit lines; and precharges the first bit lines subsequent to the end of the predetermined period. The amplifier module: based on the first rate, access first instructions stored in the first row; and based on the second rate, accesses second instructions stored in the first row or a second row of the array.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: September 3, 2013
    Assignee: Marvell World Trade Ltd.
    Inventors: Sehat Sutardja, Jason T. Su, Hong-Yi Chen, Jason Sheu, Jensen Tjeng
  • Patent number: 8295110
    Abstract: A processor including a cache memory, a decoder, a precharge circuit, a control module, and an amplifier module. The decoder generates a first word line signal to access first instructions stored in a first word line, and (ii) generates a second word line signal to access second instructions stored in the first word line or a second word line. The precharge circuit (i) precharges first bit lines connected to the first word line prior to accessing each of the first and second instructions. The control module adjusts a rate of a clock signal from a first rate to a second rate. The amplifier module accesses the first instructions based on (i) the first word line signal and (ii) the clock signal at the first rate, and accesses the second instructions based on (i) the second word line signal and (ii) the clock signal at the second rate.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: October 23, 2012
    Assignee: Marvell World Trade Ltd.
    Inventors: Sehat Sutardja, Jason T. Su, Hong-Yi Chen, Jason Sheu, Jensen Tjeng
  • Publication number: 20120014196
    Abstract: A processor including a cache memory, a decoder, a precharge circuit, a control module, and an amplifier module. The decoder generates a first word line signal to access first instructions stored in a first word line, and (ii) generates a second word line signal to access second instructions stored in the first word line or a second word line. The precharge circuit (i) precharges first bit lines connected to the first word line prior to accessing each of the first and second instructions. The control module adjusts a rate of a clock signal from a first rate to a second rate. The amplifier module accesses the first instructions based on (i) the first word line signal and (ii) the clock signal at the first rate, and accesses the second instructions based on (i) the second word line signal and (ii) the clock signal at the second rate.
    Type: Application
    Filed: September 26, 2011
    Publication date: January 19, 2012
    Inventors: Sehat Sutardja, Jason T. Su, Hong-Yi Chen, Jason Sheu, Jensen Tjeng
  • Patent number: 8089823
    Abstract: A processor including a memory and a control module. The memory has an array of cells. The control module is configured to: determine a number of access cycles along a first word line; determine an extended period based on the number of the access cycles; generate a word line signal to maintain the first word line in an activated state during (i) an initial period and (ii) the extended period; and access a first cell during the extended period. The first cell is connected to the first word line. The control module is further configured to deactivate the word line and maintain the first word line in a deactivated state while accessing a second cell connected to the first word line. The accessing of the second cell is based on a bit line separation provided during the extended period.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: January 3, 2012
    Assignee: Marvell World Trade Ltd.
    Inventors: Sehat Sutardja, Jason T. Su, Hong-Yi Chen, Jason Sheu, Jensen Tjeng
  • Patent number: 8027218
    Abstract: A processor includes a cache memory that has an array, word lines, and bit lines. A control module accesses cells of the array during access cycles to access instructions stored in the cache memory. The control module performs one of a first discrete read and a first sequential read to access instructions in a first set of cells of the array that are connected to a first word line and selectively performs one of a second discrete read and a second sequential read based on a branch instruction to access instructions in a second set of cells of the array that are connected to a second word line. The second word line is different than the first word line.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: September 27, 2011
    Assignee: Marvell World Trade Ltd.
    Inventors: Sehat Sutardja, Jason T. Su, Hong-Yi Chen, Jason Sheu, Jensen Tjeng
  • Publication number: 20100329058
    Abstract: A processor includes a cache memory. The cache memory includes an array of cells, word lines and bit lines. A control module enables a word line of the word lines to access a first cell in the enabled word line. The control module disables the word line and maintains the word line in a disabled state to access a second cell in the word line.
    Type: Application
    Filed: August 25, 2010
    Publication date: December 30, 2010
    Inventors: Sehat Sutardja, Jason T. Su, Hong-Yi Chen, Jason Sheu, Jensen Tjeng
  • Patent number: 7787324
    Abstract: A processor includes a cache memory. The cache memory includes an array of cells, word lines and bit lines. A control module enables a word line of the word lines to access a first cell in the enabled word line. The control module disables the word line and maintains the word line in a disabled state to access a second cell in the word line.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: August 31, 2010
    Assignee: Marvell World Trade Ltd.
    Inventors: Sehat Sutardja, Jason T. Su, Hong-Yi Chen, Jason Sheu, Jensen Tjeng
  • Publication number: 20080189518
    Abstract: A processor includes a cache memory that has an array, word lines, and bit lines. A control module accesses cells of the array during access cycles to access instructions stored in the cache memory. The control module performs one of a first discrete read and a first sequential read to access instructions in a first set of cells of the array that are connected to a first word line and selectively performs one of a second discrete read and a second sequential read based on a branch instruction to access instructions in a second set of cells of the array that are connected to a second word line. The second word line is different than the first word line.
    Type: Application
    Filed: April 2, 2008
    Publication date: August 7, 2008
    Inventors: Sehat Sutardja, Jason T. Su, Hong-Yi Chen, Jason Sheu, Jensen Tjeng
  • Publication number: 20080165602
    Abstract: A processor includes a cache memory. The cache memory includes an array of cells, word lines and bit lines. A control module enables a word line of the word lines to access a first cell in the enabled word line. The control module disables the word line and maintains the word line in a disabled state to access a second cell in the word line.
    Type: Application
    Filed: October 11, 2007
    Publication date: July 10, 2008
    Inventors: Sehat Sutardja, Jason T. Su, Hong-Yi Chen, Jason Sheu, Jensen Tjeng