Television – Special applications – Manufacturing
Patent
1994-01-11
1995-04-18
Groody, James J.
Television
Special applications
Manufacturing
348 12, 455 51, H04N 7173
Patent
active
054082609
ABSTRACT:
A plurality of ADSL (asymmetric digital subscriber line) terminals are coupled to the coaxial cable of a cable television distribution arrangement. Each ADSL terminal is coupled to a respective ADSL path and a respective customer premises telephone line for coupling of telephone signals. Each ADSL terminal comprises a transmitter for supplying asymmetric signals received via the respective ADSL path to the coaxial cable, and transmitters and receivers for communicating bidirectional data and control signals, communicated via the respective ADSL path, via the coaxial cable, in each case modulated at a frequency which is not used for television signals. Customer premises equipment includes corresponding receivers and transmitters. The arrangement permits the ADSL terminals to be used as a resource shared by a plurality of customer premises.
REFERENCES:
patent: 5247347 (1993-09-01), Litteral et al.
J. A. C. Bingham, "Multicarrier Modulation for Data Transmission: An Idea Whose Time Has Come", IEEE Communications Magazine, vol. 28, No. 5, pp. 5-14, May 1990.
S. Fleming et al., "ADSL: The On-Ramp to the Information Highway", Telephony, pp. 20-26, Jul. 12, 1993.
Grant Chris
Groody James J.
Haley R. John
Northern Telecom Limited
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