EP 1189483 A1 20020320 - STEREO ACOUSTIC IMAGE AMPLIFIER
Title (en)
STEREO ACOUSTIC IMAGE AMPLIFIER
Title (de)
STEREOAKUSTISCHER BILDVERSTÄRKER
Title (fr)
AMPLIFICATEUR D'IMAGE ST R O-ACOUSTIQUE
Publication
Application
Priority
- JP 0003379 W 20000525
- JP 15047399 A 19990528
Abstract (en)
A stereo acoustic image amplifier comprises a first operation unit for subtracting a second input signal from a first input signal to generate a difference signal, a filter for filtering the difference signal from the first operation unit to generate a filter difference signal, a second operation unit for adding the first input signal and the filter difference signal from the filter to generate a first output signal, and a third operation unit for subtracting from the second input signal the filter difference signal from the filter, the filter comprising a low-pass filter having a cut-off frequency of 5 kHz and a high-pass filter having a cut-off frequency of 200 Hz. <IMAGE>
IPC 1-7
IPC 8 full level
H04S 1/00 (2006.01)
CPC (source: EP KR)
H04R 3/02 (2013.01 - KR); H04S 1/002 (2013.01 - EP KR); H04S 2400/13 (2013.01 - KR)
Citation (search report)
See references of WO 0074439A1
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 1189483 A1 20020320; CN 1353917 A 20020612; JP 2000341798 A 20001208; KR 100563499 B1 20060328; KR 20020003571 A 20020112; WO 0074439 A1 20001207
DOCDB simple family (application)
EP 00931572 A 20000525; CN 00808166 A 20000525; JP 0003379 W 20000525; JP 15047399 A 19990528; KR 20017015211 A 20011127