Patents by Inventor Chris Grivas

Chris Grivas 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: 8682388
    Abstract: A mobile device includes a touch screen display and touch screen circuit for receiving touch inputs. A camera configured to acquire one or more images in front of the display. A proximity sensor configured to provide an indication that a user is in close proximity to the touch screen display. A processor being effective to determine, in response to the indication of the proximity sensor, whether the user is in a position to view the display based on the one or more images of the camera. If the proximity sensor provides an indication that the user is in close proximity to the display and the processor determines, based on the one or more images, that the user is in a position to view the display, then at least one of the display and the touch screen circuit are not disabled.
    Type: Grant
    Filed: December 31, 2010
    Date of Patent: March 25, 2014
    Assignee: Motorola Mobility LLC
    Inventors: Sandeep Vuppu, Chris Grivas, Hong Zhao
  • Publication number: 20120172085
    Abstract: A mobile device includes a touch screen display and touch screen circuit for receiving touch inputs. A camera configured to acquire one or more images in front of the display. A proximity sensor configured to provide an indication that a user is in close proximity to the touch screen display. A processor being effective to determine, in response to the indication of the proximity sensor, whether the user is in a position to view the display based on the one or more images of the camera. If the proximity sensor provides an indication that the user is in close proximity to the display and the processor determines, based on the one or more images, that the user is in a position to view the display, then at least one of the display and the touch screen circuit are not disabled.
    Type: Application
    Filed: December 31, 2010
    Publication date: July 5, 2012
    Applicant: MOTOROLA-MOBILITY, INC.
    Inventors: Sandeep Vuppu, Chris Grivas, Hong Zhao
  • Patent number: 8005364
    Abstract: A wireless communication device (10) includes a radio frequency transceiver (22) adapted for burst transmission responsive to an enable signal in accordance with at least one communication protocol and an infrared transceiver (24) adapted for asynchronous data communication. The infrared transceiver (24) is responsive to the enable signal to suspend data communication. A controller (20) is coupled to each of the radio frequency transceiver (22) and the infrared transceiver (24), and the controller (20) is operable to generate the enable signal in accordance with the at least one communication protocol.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: August 23, 2011
    Assignee: Motorola Mobility, Inc.
    Inventors: Andrew S. Lundholm, Chris Grivas, Jeffrey T. Curtis, Julius S. Gyorfi
  • Publication number: 20070216320
    Abstract: A method and apparatus for controlling a plurality of light sources (102,103,104,105) in an electronic device (100) is provided. In one embodiment, the plurality of light sources (102,103,104,105) is used to backlight an illuminated display (101). As switching multiple light sources on simultaneously can cause output voltages of power sources (219) to drop, thereby potentially affecting the overall operation of the electronic device (100), an illumination controller (107) distributes actuation times associated with illumination control signals (204,205,206,207) such that each actuation time is unique. A control signal generator (201) produces a control signal (202) having light source actuation information stored therein. The illumination controller (107) then generates a plurality of illumination control signals (204,205,206,207) that are capable of actuating the plurality of light sources (102,103,104,105).
    Type: Application
    Filed: March 16, 2006
    Publication date: September 20, 2007
    Inventors: Chris Grivas, Erik Cholewin, Andrew Lundholm
  • Patent number: 7076234
    Abstract: A wireless communications unit 200, and corresponding method 300 within, is arranged and constructed for reducing peak current levels on a power source for the communications unit and comprises: one function, such as a transmitter 203 that is selectively enabled according, for example to an on/off duty cycle; an other function, such as a backlighting apparatus 214, 218 or accessory device 225 that is controllably supplied with a current where the current can be intermittently interrupted without adversely effecting utility of the other function; and a controller 209 for enabling the function or transmitter according to the on/off duty cycle and, when enabled, interrupting the current provided to the other function.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: July 11, 2006
    Assignee: Motorola, Inc.
    Inventors: Chris Grivas, Andrew S. Lundholm
  • Publication number: 20050008371
    Abstract: A wireless communication device (10) includes a radio frequency transceiver (22) adapted for burst transmission responsive to an enable signal in accordance with at least one communication protocol and an infrared transceiver (24) adapted for asynchronous data communication. The infrared transceiver (24) is responsive to the enable signal to suspend data communication. A controller (20) is coupled to each of the radio frequency transceiver (22) and the infrared transceiver (24), and the controller (20) is operable to generate the enable signal in accordance with the at least one communication protocol.
    Type: Application
    Filed: July 22, 2004
    Publication date: January 13, 2005
    Inventors: Andrew Lundholm, Chris Grivas, Jeffrey Curtis, Julius Gyorfi
  • Patent number: 6782208
    Abstract: A wireless communication device (10) includes a radio frequency transceiver (22) adapted for burst transmission responsive to a control signal in accordance with at least one communication protocol and an infrared transceiver (24) adapted for asynchronous data communication in coordination. The infrared transceiver (24) is responsive to the control signal to suspend an ongoing data communication for the duration of the burst transmission and to resume the data communication following the burst transmission. A controller (20) is coupled to each of the radio frequency communication module (22) and the infrared communication module (24), and the controller (20) is operable to generate the control signal in accordance with the at least one communication protocol.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: August 24, 2004
    Assignee: Motorola, Inc.
    Inventors: Andrew S. Lundholm, Chris Grivas, Jeffrey T. Curtis, Julius S. Gyorfi
  • Publication number: 20040116161
    Abstract: A wireless communications unit 200, and corresponding method 300 within, is arranged and constructed for reducing peak current levels on a power source for the communications unit and comprises: one function, such as a transmitter 203 that is selectively enabled according, for example to an on/off duty cycle; an other function, such as a backlighting apparatus 214, 218 or accessory device 225 that is controllably supplied with a current where the current can be intermittently interrupted without adversely effecting utility of the other function; and a controller 209 for enabling the function or transmitter according to the on/off duty cycle and, when enabled, interrupting the current provided to the other function.
    Type: Application
    Filed: December 13, 2002
    Publication date: June 17, 2004
    Applicant: MOTOROLA, INC.
    Inventors: Chris Grivas, Andrew S. Lundholm
  • Patent number: 6323849
    Abstract: A display module (100) with reduced power consumption uses a control circuit (110) to reset row and column display drivers (130, 140) and turn off a portion of the display (150) when the display module (100) is in a partial display mode. The partial display mode allows a reduction in the driving voltages for the display which in turn reduces the power needed by the bias voltage divider (120) which produces the driving voltages. The display module (100) with reduced power consumption is applicable to both LCD and non-LCD technologies, such as electroluminescence or cathode ray tube, using a multiplex or scanning methodology.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: November 27, 2001
    Assignee: Motorola, Inc.
    Inventors: Fan He, Chris Grivas, Phillip L. Roccapriore