Patents by Inventor John Thomas Carr

John Thomas Carr 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).

  • System and method for coding a digital wrapper frame
    Patent number: 7289530
    Abstract: A system and method are provided for coding a frame in a packet communications system using a G.709 Digital Wrapper Frame format. The method comprises: accepting digital information; outer encoding the digital information with a Reed Solomon (RS) encoding scheme; interleaving the outer encoded information; inner encoding the interleaved information using a BCH encoding scheme; and, forming a G.709 Digital Wrapper frame including payload and parity bytes. More specifically, a standard DW superframe is formed with 122,368 bits of payload and 8192 bits of parity. The outer encoding process uses an RS(1023,1007) parent code. In one aspect, 15 groups of RS(781,765) and 1 group of RS(778,762) codewords are formed per superframe. The inner encoding process uses a BCH(2047,1959) parent code. In one aspect, 64 groups of BCH(2040,1952) codewords are formed per superframe.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: October 30, 2007
    Assignee: Applied Micro Circuits Corporation
    Inventors: Warm Shaw Yuan, Daniel M. Castagnozzi, Alan Michael Sorgi, John Thomas Carr