Patents by Inventor Raj Subramoniam

Raj Subramoniam 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).

  • LED matrix manager
    Patent number: 9491838
    Abstract: Circuits for controlling a plurality of LEDs connected in series are disclosed herein. The circuit includes a plurality of switches, wherein each switch is connectable between the anode and cathode of one of the plurality of LEDs. Each of the switches has a first state wherein current does not pass through the switch and a second state wherein current passes through the switch. The circuit also includes an input for receiving data to program the switches and a data line for transferring data between a circuit controlling second LEDs that are connected in parallel with the first LEDs and the circuit. In addition, the circuit includes a data output for transferring data to other circuits controlling third LEDs that are connected in series with the first LEDs.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: November 8, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Giovanni Frattini, Evan Reutzel, Jeffrey Morroni, Ali Djabbari, Gerard Socci, Gianpaolo Lisi, Raj Subramoniam, Kosha Mahmodieh