Global Patent Index - EP 0776144 B1

EP 0776144 B1 2001-04-11 - Signal modification circuit

Title (en)

Signal modification circuit

Title (de)

Signalmodifikationsschaltung

Title (fr)

Circuit pour la modification d'un signal

Publication

EP 0776144 B1 (DE)

Application

EP 95118595 A

Priority

EP 95118595 A

Abstract (en)

[origin: EP0776144A1] The circuit is used for a pair of signals (L,R) provided by a signal source (q), which are divided into signal components (s1-s6), and selectively combined to provide a pair of modified signals (L',R'). A first combining stage (K1) combines two signal components (s1,s2) obtained from the first signal (L), provided by the source, with a third signal (s3) obtained from the second signal, provided by the source. A second combining stage (K2) similarly combines two signal components (s4,s5), obtained from the second signal, with a signal (s6) obtained from the first signal.

IPC 1-7 (main, further and additional classification)

H04S 1/00; H04S 3/00

IPC 8 full level (invention and additional information)

H04S 1/00 (2006.01)

CPC (invention and additional information)

H04S 1/002 (2013.01)

Designated contracting state (EPC)

DE FR GB IT NL

EPO simple patent family

EP 0776144 A1 19970528; EP 0776144 B1 20010411; DE 59509187 D1 20010517; JP H09191499 A 19970722; KR 100424520 B1 20040618; US 5822437 A 19981013

INPADOC legal status


2011-09-30 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2009-07-29 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

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2002-04-03 [26N] NO OPPOSITION FILED

2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

2001-06-15 [ET] FR: TRANSLATION FILED

2001-06-05 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: BUGNION S.P.A.

2001-05-17 [REF] CORRESPONDS TO:

- Document: DE 59509187 20010517

2001-05-16 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20010425

2001-04-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB IT NL

2000-07-05 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: MICRONAS GMBH

1999-05-06 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19990323

1998-02-04 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: MICRONAS INTERMETALL GMBH

1998-01-28 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19971128

1997-05-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT NL