Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 15, 2008
Patent Application Number
11449469
Date Filed
June 8, 2006
Patent Primary Examiner
Patent abstract
An efficient method of amplifying a digital signal with reduced electromagnetic interference is disclosed. The invention applies an average amplitude detector to the input signal to control the clock frequency of a pseudo-random number generator so that the clock signal decreases when the average amplitude of the signal increases. The input signal and the pseudo-random number generator are compared to generate a control signal for a switching power amplifier followed by a low-pass filter. When the average amplitude of the input signal falls below a pre-determine threshold, the switching amplifier is placed in a sleep mode.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
