Patents by Inventor Madhu Nerlikar

Madhu Nerlikar 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: 6198875
    Abstract: The invention consists of attaching or embedding a “TIRIS” transponder (or other RF or IR or barcode or other identifying device) physically into the center of the proposed DVD disk. Once a disk is input to a media player, the interrogation portion of the media player transmits an interrogation signal to the transponder located on the disk. Once empowered with the interrogation signal, the transponder accesses the predetermined address, code word, encryption algorithms, media type information, and copyright information from it's memory. Then the transponder transmits the address, the code word, encryption algorithms, media type information and copyright information to the interrogator, located within the media player, and the interrogator sends the transponder data stream to a conditional access management processor(CAMP).
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: March 6, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: Roy I. Edenson, Madhu Nerlikar