Patents by Inventor Zhen W. Liu

Zhen W. Liu 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).

  • Systems and methods for resolving memory address collisions
    Patent number: 7417907
    Abstract: A hardware implemented method for resolving collisions of memory addresses of a memory array is provided. In this hardware implemented method, a read memory address is compared with a write memory address. If the read and write memory addresses match, write data is directed from a data input to a data output, whereby the data input is further configured to input the write data to the memory array. A system and a memory chip for resolving collisions of memory addresses of a memory array are also described.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: August 26, 2008
    Assignee: Sun Microsystems, Inc.
    Inventors: Zhen W. Liu, Kenway Tam
  • Efficient method of data transfer between register files and memories
    Patent number: 7136308
    Abstract: A memory system includes an active storage circuit and at least one base storage circuit. The at least one base storage circuit is coupled to the active storage circuit though at least one pass gate, at least one driver and a bit line. The at least one pass gate and the at least one driver have a device size substantially similar to a device size of each one of the devices in the active storage circuit and the at least one base storage circuit. A method of swapping data between two storage circuits is also described.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: November 14, 2006
    Assignee: Sun Microsystems, Inc.
    Inventors: Shree Kant, Kenway Tam, Poonacha P. Kongetira, Yuan-Jung D Lin, Zhen W. Liu, Kathirgamar Aingaran