EP 1606884 A2 20051221 - CLIP DETECTION IN PWM AMPLIFIER
Title (en)
CLIP DETECTION IN PWM AMPLIFIER
Title (de)
CLIP-DETEKTION IN EINEM PWM-VERSTÄRKER
Title (fr)
DETECTION D'ECRETAGE DANS UN AMPLIFICATEUR MID
Publication
Application
Priority
- US 2004008534 W 20040319
- US 45641403 P 20030321
- US 46977003 P 20030512
Abstract (en)
[origin: WO2004086616A2] Systems and methods for detecting clipping conditions in an audio signal and processing the signal to reduce the clipping conditions. In one embodiment, a system comprises a noise shaper, a modulator, an output stage and other components. A detector detects clipping in the noise shaper and a signal processor processes the audio signal input to the noise shaper based on feedback received from the detector. The signal processor may function to modify the input audio signal in different ways in response to different conditions that are detected by the detector. A filter may be included to filter tie output of the detector before being provided to the signal processor. A flag circuit may be coupled between the filter and the signal processor to assert an output signal until the signal processor resets the flag circuit.
IPC 1-7
IPC 8 full level
H03F 1/52 (2006.01); H03F 3/217 (2006.01); H03G 3/00 (2006.01); H03G 7/00 (2006.01); H03H 17/06 (2006.01); H04L 7/02 (2006.01)
CPC (source: EP)
H03F 1/523 (2013.01); H03F 3/2171 (2013.01); H03F 3/2175 (2013.01); H03G 3/002 (2013.01); H03G 7/007 (2013.01); H04L 7/005 (2013.01); H04L 7/02 (2013.01)
Citation (search report)
See references of WO 2004086616A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004086616 A2 20041007; WO 2004086616 A3 20041125; CN 1894855 A 20070110; CN 1894855 B 20110615; EP 1606884 A2 20051221; HK 1094626 A1 20070404; JP 2006523414 A 20061012; JP 4617298 B2 20110119
DOCDB simple family (application)
US 2004008534 W 20040319; CN 200480009689 A 20040319; EP 04757922 A 20040319; HK 07101872 A 20070215; JP 2006507396 A 20040319