Global patent index - EP 1062791 A1

EP 1062791 A1 2000-12-27 - TELEPHONE INTERFACE DEVICE

Title (en)

TELEPHONE INTERFACE DEVICE

Title (de)

FERNSPRECHSCHNITTSTELLENSCHALTUNG

Title (fr)

DISPOSITIF D'INTERFACE TELEPHONIQUE

Publication

EP 1062791 A1 (EN)

Application

EP 99939244 A

Priority

  • GB 9900670 W
  • GB 9804905 A

Abstract (en)

[origin: WO9946912A1] The invention provides an interface device for automatically interfacing a natural telephone input device to a telephone host system having an at least 4 wire input/output configured for a specific type of telephone input device comprising an input/output for connection to the telephone host system (14), an input/output for connection to the telephone input device (12), diagnostic circuitry (15) for interrogating the telephone host system (12) to indentify the specific type of telephone input device including testing for DC voltage and detecting current and signal shaping circuitry (b, c and d), responsive to the diagnostic circuitry (15), for shaping the output of the microphone of the actual device so that it appears as if it is a microphone of the specific type.

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

H04M 1/60

IPC 8 full level (invention and additional information)

H04M 1/60 (2006.01)

CPC (invention and additional information)

H04M 1/60 (2013.01)

Citation (search report)

See references of WO 9946912A1

Designated contracting state (EPC)

DE DK FR GB

EPO simple patent family

WO 9946912 A1 19990916; AU 3266699 A 19990927; EP 1062791 A1 20001227; GB 9804905 D0 19980429

INPADOC legal status

2004-04-07 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20031001

2002-04-24 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: KNOWLES ELECTRONICS, LLC

- Ref Legal Event Code: RAP1

2000-12-27 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000908

2000-12-27 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE DK FR GB