Global Patent Index - EP 0983688 A1

EP 0983688 A1 2000-03-08 - TWISTED PAIR COMMUNICATION SYSTEM

Title (en)

TWISTED PAIR COMMUNICATION SYSTEM

Title (de)

KOMMUNIKATIONSSYSTEM MIT VERDRILLTEN PAAREN

Title (fr)

SYSTEME DE COMMUNICATION A PAIRES TORSADEES

Publication

EP 0983688 A1 (EN)

Application

EP 98923897 A

Priority

  • US 9811197 W
  • US 4793697 P
  • US 5222597 P
  • US 5230197 P
  • US 5645897 P
  • US 98569297 A
  • US 2097898 A
  • US 4796998 A
  • US 4797098 A

Abstract (en)

[origin: CA2290001A1] A communication system for passing information between information services and terminal devices over a twisted wire pair network. The information services include a telephone exchange and other services, such as a data network and a television distribution system. The terminal devices include telephones and other devices, such as computers and televisions. The system includes a main information interface coupled to the information services and a twisted pair wiring network coupled to the terminal devices and to the main information interface. The wiring network includes multiple active telephone pairs for passing voice signals between the telephone exchange and telephones. The information interface includes circuitry for combining on the active telephone pairs (a) telephone signals in a telephone frequency band passing between the telephone exchange and the one or more telephones and (b) high frequency signals in a high band of frequencies higher that those of the telephone frequency band passing information between the other information services and one or more of the terminal devices.

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

H04N 7/10

IPC 8 full level (invention and additional information)

H04N 7/10 (2006.01)

IPC 8 main group level (invention and additional information)

H04M (2006.01); H04N (2006.01)

Citation (search report)

See references of WO 9854901A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

AU 7608198 A 19981230; BR 9809198 A 20000801; CA 2290001 A1 19981203; EA 199901019 A1 20010226; EP 0983688 A1 20000308; IL 133169 D0 20010319; KR 20010013187 A 20010226; MX PA99011003 A 20020702; NO 995864 A 20000128; NO 995864 D0 19991130; PL 337208 A1 20000814

INPADOC legal status


2002-08-14 [18R] REFUSED

- Effective date: 20020315

2000-11-22 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20001010

2000-03-08 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991230

2000-03-08 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-03-08 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL PAYMENT 19991230;LT PAYMENT 19991230;LV PAYMENT 19991230;MK PAYMENT 19991230;RO PAYMENT 19991230;SI PAYMENT 19991230