Patents by Inventor Guruswami Sridharan

Guruswami Sridharan 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).

  • Transceiver development in VHF/UHF/GSM/GPS/bluetooth/cordless telephones
    Patent number: 7979046
    Abstract: A digital communication circuit can be implemented can be implemented in a CMOS, or other IC structure. The digital circuit can utilize negative frequency removers or image frequency removers in the digital domain. The circuit can include mixers, switches, a complex filter, a low noise amplifier and summers. The image frequency can be removed digitally.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: July 12, 2011
    Assignee: Orca Systems, Inc.
    Inventor: Guruswami Sridharan
  • TRANSCEIVER DEVELOPMENT IN VHF/UHF/GSM/GPS/BLUETOOTH/CORDLESS TELEPHONES
    Publication number: 20090147884
    Abstract: A digital communication circuit can be implemented can be implemented in a CMOS, or other IC structure. The digital circuit can utilize negative frequency removers or image frequency removers in the digital domain. The circuit can include mixers, switches, a complex filter, a low noise amplifier and summers. The image frequency can be removed digitally.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 11, 2009
    Inventor: Guruswami Sridharan
  • Transceiver development in VHF/UHF/GSM/GPS/bluetooth/cordless telephones
    Patent number: 7519349
    Abstract: A digital communication circuit can be implemented can be implemented in a CMOS, or other IC structure. The digital circuit can utilize negative frequency removers or image frequency removers in the digital domain. The circuit can include mixers, switches, a complex filter, a low noise amplifier and summers. The image frequency can be removed digitally.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: April 14, 2009
    Assignee: ORCA Systems, Inc.
    Inventor: Guruswami Sridharan
  • Transceiver development in VHF/UHF/GSM/GPS/bluetooth/cordless telephones
    Publication number: 20070197183
    Abstract: A digital communication circuit can be implemented can be implemented in a CMOS, or other IC structure. The digital circuit can utilize negative frequency removers or image frequency removers in the digital domain. The circuit can include mixers, switches, a complex filter, a low noise amplifier and summers. The image frequency can be removed digitally.
    Type: Application
    Filed: February 17, 2006
    Publication date: August 23, 2007
    Inventor: Guruswami Sridharan