EP 0983688 A1 20000308 - 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
Application
Priority
- US 9811197 W 19980601
- US 4793697 P 19970530
- US 5222597 P 19970711
- US 5230197 P 19970711
- US 5645897 P 19970821
- US 98569297 A 19971212
- US 2097898 A 19980209
- US 4796998 A 19980325
- US 4797098 A 19980325
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
IPC 8 full level
H04N 7/10 (2006.01)
IPC 8 main group level
CPC (source: KR)
H04N 7/10 (2013.01)
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
DOCDB simple family (publication)
AU 7608198 A 19981230; BR 9809198 A 20000801; CA 2290001 A1 19981203; EA 199901019 A1 20010226; EP 0983688 A1 20000308; IL 133169 A0 20010319; KR 20010013187 A 20010226; MX PA99011003 A 20020702; NO 995864 D0 19991130; NO 995864 L 20000128; PL 337208 A1 20000814
DOCDB simple family (application)
AU 7608198 A 19980601; BR 9809198 A 19980601; CA 2290001 A 19980601; EA 199901019 A 19980601; EP 98923897 A 19980601; IL 13316998 A 19980601; KR 19997011172 A 19980601; MX 9911003 A 19980601; NO 995864 A 19991130; PL 33720898 A 19980601