Patents by Inventor Syed Khalid Azim

Syed Khalid Azim 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: 7724612
    Abstract: Systems and methods for obtaining corrected time information in a GPS-enabled device connected to a mobile handset via a short-range wireless network, such as a Bluetoothâ„¢ Piconetâ„¢. The mobile handset includes a GPS time and a network clock synchronized with a network clock in a short-range wireless network interface in the GPS-enabled device. The GPS-enabled device may send requests for time information to the mobile handset. The mobile handset receives the request and latches the network clock time and the GPS time. The captured network clock time and GPS times are sent to the GPS-enabled device in response to the request. The GPS-enabled device subtracts the captured network clock time from its own network clock time and adds the difference to the captured GPS time to obtain a corrected GPS time.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: May 25, 2010
    Assignee: Sirf Technology, Inc.
    Inventor: Syed Khalid Azim
  • Publication number: 20080258965
    Abstract: Systems and methods for obtaining corrected time information in a GPS enabled device connected to a mobile handset via a short-range wireless network, such as a Bluetooth Piconet. The mobile handset includes a GPS time and a network clock synchronized with a network clock in a short-range wireless network interface in the GPS enabled device. The GPS enabled device may send requests for time information to the mobile handset. The mobile handset receives the request and latches the network clock time and the GPS time. The captured network clock time and GPS times are sent to the GPS enabled device in response to the request. The GPS enable device substracts the captured network clock time from its own network clock time and adds the difference to the captured GPS time to obtain a corrected GPS time.
    Type: Application
    Filed: April 20, 2007
    Publication date: October 23, 2008
    Inventor: Syed Khalid Azim
  • Patent number: 7289145
    Abstract: An image processor system for a charge coupled device (CCD) or CMOS imaging system includes a correlated double sample and variable gain (CDSVGA) circuit for receiving data from a CCD system and an automatic gain control (AGC) circuit which first controls gain by adjusting said CCD system and then for yet a higher gain level makes gain adjustments in said CDSVGA circuit AND a digital gain circuit to produce a combined target gain level. A processing system for an imager device includes a camera system for producing an imager signal, a correlated double sample (CDS) circuit for receiving data from an imager, a variable gain amplifier (VGA), an analog-to-digital converter (ADC) coupled to said CDS circuit, a digital gain circuit (DGC) coupled to said ADC, and an automatic gain control (AGC) circuit coupled to said DGC for controlling the CDS circuit and the DGC.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: October 30, 2007
    Assignee: Cirrus Logic, Inc.
    Inventors: Sandra Marie Johnson, Shih-Chung Chao, Nadi Rafik Itani, Caiyi Wang, Brannon Craig Harris, Ash Prabala, Douglas R. Holberg, Alan Hansford, Syed Khalid Azim, David R. Welland
  • Publication number: 20020176009
    Abstract: An image processor system for a charge coupled device (CCD) or CMOS imaging system includes a correlated double sample and variable gain (CDSVGA) circuit for receiving data from a CCD system and an automatic gain control (AGC) circuit which first controls gain by adjusting said CCD system and then for yet a higher gain level makes gain adjustments in said CDSVGA circuit AND a digital gain circuit to produce a combined target gain level. A processing system for an imager device includes a camera system for producing an imager signal, a correlated double sample (CDS) circuit for receiving data from an imager, a variable gain amplifier (VGA), an analog-to-digital converter (ADC) coupled to said CDS circuit, a digital gain circuit (DGC) coupled to said ADC, and an automatic gain control (AGC) circuit coupled to said DGC for controlling the CDS circuit and the DGC.
    Type: Application
    Filed: March 27, 2002
    Publication date: November 28, 2002
    Inventors: Sandra Marie Johnson, Shih-Chung Chao, Nadi Rafik Itani, Caiyi Wang, Brannon Craig Harris, Ash Prabala, Douglas R. Holberg, Alan Wayne Hansford, Syed Khalid Azim, David R. Welland