Patents by Inventor Roopinder S. Grewal

Roopinder S. Grewal 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).

  • Programmable lift response for an optical navigation device
    Patent number: 8081159
    Abstract: An optical pointing device comprising an optical navigation sensor and an adjustment module for adjusting an operational height of the optical navigation sensor is provided in one embodiment. In another embodiment, an optical pointing device comprising a housing and an optical navigation sensor contained in the housing is provided where the optical navigation sensor is configured to provide movement information to a processing system to cause a pointer to continue moving in response to detecting that the housing has been lifted from a navigation surface.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: December 20, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: John S. Wenstrand, Roopinder S. Grewal, Vincent C. Moyer
  • Method and device for integrating an illumination source and detector into the same IC package that allows angular illumination with a common planar leadframe
    Patent number: 7795697
    Abstract: An optical navigation device includes an integrated package. The integrated package includes a planar leadframe, a light source die mounted on the leadframe, and a sensor die mounted on the leadframe to be coplanar with the light source die. The integrated package may be mounted at an angle or parallel to a navigation surface. The sensor die may be mounted at a distance from the light source die to detect specular or scattered reflection. The optical navigation device may be devoid of any optical element used to manipulate light generated by the light source die.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: September 14, 2010
    Assignee: Avago Technologies ECBU IP (Singapore) Pte, Ltd.
    Inventor: Roopinder S. Grewal
  • METHOD AND DEVICE FOR INTEGRATING AN ILLUMINATION SOURCE AND DETECTOR INTO THE SAME IC PACKAGE THAT ALLOWS ANGULAR ILLUMINATION WITH A COMMON PLANAR LEADFRAME
    Publication number: 20080211049
    Abstract: An optical navigation device includes an integrated package. The integrated package includes a planar leadframe, a light source die mounted on the leadframe, and a sensor die mounted on the leadframe to be coplanar with the light source die. The integrated package may be mounted at an angle or parallel to a navigation surface. The sensor die may be mounted at a distance from the light source die to detect specular or scattered reflection. The optical navigation device may be devoid of any optical element used to manipulate light generated by the light source die.
    Type: Application
    Filed: May 15, 2008
    Publication date: September 4, 2008
    Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.
    Inventor: Roopinder S. Grewal
  • Method and device for integrating an illumination source and detector into the same IC package that allows angular illumination with a common planar leadframe
    Patent number: 7388283
    Abstract: An optical navigation device includes an integrated package. The integrated package includes a planar leadframe, a light source die mounted on the leadframe, and a sensor die mounted on the leadframe to be coplanar with the light source die. The integrated package may be mounted at an angle or parallel to a navigation surface. The sensor die may be mounted at a distance from the light source die to detect specular or scattered reflection. The optical navigation device may be devoid of any optical element used to manipulate light generated by the light source die.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: June 17, 2008
    Assignee: Avago Technologies ECBU IP Pte Ltd
    Inventor: Roopinder S. Grewal