Patents by Inventor Altaf Rahman

Altaf Rahman 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 memory-based parallel PN generation
    Patent number: 7953781
    Abstract: A system and method for parallel Pseudo-random Noise (PN) code generation is disclosed. The method includes the operation of producing a PN code sequence having a predetermined length. The PN code can be divided into L segments. At least one of the L segments can have a length less than other segments. The L segments can be distributed into an array of L digital memories. Each of the digital memories can output every Lth chip of the PN code in parallel at a selected rate. An element of the PN code can be substituted from an element substitution cache into the output of the L digital memories to compensate for segment(s) having a shorter length.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: May 31, 2011
    Assignee: L-3 Communications Corp.
    Inventors: Ayyoob Abbaszadeh, Altaf Rahman, Merle Keller
  • Apparatus and method for video signal processing
    Patent number: 4694357
    Abstract: An apparatus and method are disclosed for encoding, storing, and reading out frames of video signal, such as a television signal. Fast access to encoded frames on a disk is achieved using a technique which employs tag bits to control the storage and decoding of the video.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: September 15, 1987
    Assignee: Thomson-CSF Broadcast, Inc.
    Inventors: Altaf Rahman, Vincent J. Navikas