Patents Examined by Khanh Jan Nguyen
  • Method and apparatus for reducing power dissipation in multi-carrier amplifiers
    Patent number: 6028486
    Abstract: A method and apparatus are provided for reducing power dissipated by an amplifier circuit such as a line driver in a Digital Subscriber Line (DSL), a power amplifier in a radio environment, etc. The power supplied to the amplifier circuit changes depending upon the level of input signal to the amplifier circuit. A higher power is supplied to the amplifier circuit when the level of the input signal exceeds a threshold. Otherwise, a lower power is supplied to the amplifier circuit.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: February 22, 2000
    Assignee: Telefonaktiebolaget Lm Ericsson
    Inventor: Tore Andre