Patents by Inventor Ryan A. Geris

Ryan A. Geris 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).

  • METHOD OF DRIVING A FLASH DEVICE AND A NUMBER OF LOADS POWERED BY A BATTERY AND HANDHELD ELECTRONIC DEVICE INCLUDING THE SAME
    Publication number: 20120068599
    Abstract: A handheld electronic device includes a processor; a battery; a flash device; a number of loads powered by the battery; and a flash driver outputting a flash current to the flash device. The processor determines a temperature operatively associated with the battery and different voltage values corresponding to different combinations of the loads as a function of the determined temperature, and starts the flash device at a predetermined flash current value. The flash driver selects a corresponding different voltage value as a function of: (a) a determined number of the loads which are active, or (b) a current flowing from the battery; determines the battery voltage, and if the battery voltage is less than or equal to the corresponding different voltage value, reduces the flash current below the predetermined flash current value until the battery voltage is greater than the corresponding different voltage value.
    Type: Application
    Filed: November 24, 2011
    Publication date: March 22, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventor: Ryan A. GERIS
  • Method of driving a flash device and a number of loads powered by a battery and handheld electronic device including the same
    Patent number: 8084946
    Abstract: A handheld electronic device includes a processor; a battery; a flash device; a number of loads powered by the battery; and a flash driver outputting a flash current to the flash device. The processor determines a temperature operatively associated with the battery and different voltage values corresponding to different combinations of the loads as a function of the determined temperature, and starts the flash device at a predetermined flash current value. The flash driver selects a corresponding different voltage value as a function of: (a) a determined number of the loads which are active, or (b) a current flowing from the battery; determines the battery voltage, and if the battery voltage is less than or equal to the corresponding different voltage value, reduces the flash current below the predetermined flash current value until the battery voltage is greater than the corresponding different voltage value.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: December 27, 2011
    Assignee: Research In Motion Limited
    Inventor: Ryan A. Geris
  • METHOD OF DRIVING A FLASH DEVICE AND A NUMBER OF LOADS POWERED BY A BATTERY AND HANDHELD ELECTRONIC DEVICE INCLUDING THE SAME
    Publication number: 20100213842
    Abstract: A handheld electronic device includes a processor; a battery; a flash device; a number of loads powered by the battery; and a flash driver outputting a flash current to the flash device. The processor determines a temperature operatively associated with the battery and different voltage values corresponding to different combinations of the loads as a function of the determined temperature, and starts the flash device at a predetermined flash current value. The flash driver selects a corresponding different voltage value as a function of: (a) a determined number of the loads which are active, or (b) a current flowing from the battery; determines the battery voltage, and if the battery voltage is less than or equal to the corresponding different voltage value, reduces the flash current below the predetermined flash current value until the battery voltage is greater than the corresponding different voltage value.
    Type: Application
    Filed: February 26, 2009
    Publication date: August 26, 2010
    Inventor: Ryan A. Geris