Customer premise wireless distribution of broad band signals and two-way communication of control signals over power lines

• US 5,630,204 A
• Filed: 07/27/1995
• Issued: 05/13/1997
• Est. Priority Date: 05/01/1995
• Status: Expired due to Term

• Current Assignee: Verizon Patent and Licensing Incorporated (Verizon Communications Inc.)
• Original Assignee: Bell Atlantic Network Services, Inc. (Verizon Communications Inc.)
• Inventors: Hylton, Denny L., Olsen, Steven, Burton, William, Lichtenwalner, Dave
• Primary Examiner(s): Peng, John K.
• Assistant Examiner(s): GRANT, CHRISTOPHER C
• Application Number:
  US08/508,345
• Time in Patent Office: 656 Days
• Field of Search: 455/3.1, 455/4.2, 455/5.1, 455/6.3, 455/3.3, 455/3.2, 455/66, 348/8, 348/12, 348/13, 348/10, 348/6, 348/7, 370/110.1, 370/95.1, 370/95.3, 370/85.1, 370/85.2, 370/85.3, 370/124, 370/73, 370/18, 370/19, 370/21, 375/205
• US Class Current: 725/116
• CPC Class Codes: H04L 12/2801 Broadband local area networks
• CPC Class Codes: H04L 2012/5607 Radio
• CPC Class Codes: H04L 2012/5616 Terminal equipment, e.g. codecs, synch.
• CPC Class Codes: H04L 2012/5642 Multicast/broadcast/point-multipoint, e.g. VOD
• CPC Class Codes: H04L 2012/5664 Support of Video, e.g. MPEG
• CPC Class Codes: H04N 7/106 for domestic distribution
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests
• CPC Class Codes: H04N 7/20 Adaptations for transmission via a GHz frequency band, e.g. via satellite

Abstract

A system and method for providing interactive multimedia services to subscriber premises utilizing wireless and power line distribution within the subscriber premise. The service is provided via a communications link delivering to the subscriber premises broad band digital information including video and audio from a plurality of information providers and control signals in a multiplexed form. This multiplexed signal is then separated and processed on premise and distributed in a two-way fashion using frequency hopping code division multiple access (CDMA) spread spectrum using radio frequency signals preferably at UHF for the broadband downstream signal and power line carrier for the control signaling.

Claims

1. A customer premise installation for distributing on said premise from a communication network terminating link broadband digital information and two-way narrow band control signals, comprising:

plural user video terminals each connected to a collocated control terminal;

each video terminal being coupled to said terminating link through a coupling including a pair of interface units;

a first interface coupler in each pair of interface units comprising a receiver and a transmitter for respectively receiving and transmitting spread spectrum radio frequency signals, said transmitter transmitting radio frequency signals including a broadband digital information signal and said receiver receiving and translating from said spread spectrum radio frequency signals and delivering to said video terminal broadband signals;

a second interface coupler in each pair of interface units receiving and transmitting said two-way control signals including upstream signals corresponding to signals received from one of said control terminals and downstream signals corresponding to signals received from said terminating link;

said second interface coupler in each pair of interface units including a power line transporting said two-way control signals on carriers modulated by said control signals corresponding to said downstream control signals emanating from said terminating link and said upstream control signals emanating from said one control terminal.

2. An installation according to claim 1 wherein upstream control signals on said power line are responsive to downstream polling signals.

3. An installation according to claim 1 wherein each said pair of interface units is coupled to said terminating link via an interface module which includes:

a first signal selector which selects from multiple broadband signals carried by said terminating link a group of said broadband signals responsive to an upstream control signal corresponding to user input to said control terminal; and

a second signal selector which selects from said group of broadband signals a signal carrying the video content responsive to an upstream control signal corresponding to user input to said control terminal.

4. An installation according to claim 3 wherein one of said selectors is a frequency selector.

5. An installation according to claim 3 wherein one of said selectors is a CDMA selector.

6. An installation according to claim 1 wherein said spread spectrum signals are frequency hopped spread spectrum.

7. In a system comprising:

a communication network selectively providing broadband communications links;

a plurality of information service provider systems connected to the network for transmitting broadband digital information via communication links through the network;

a gateway for connecting selected information provider systems to user terminals responsive to user terminals transmitting control signals upstream through the network in response to user inputs;

wherein said user terminals include a control terminal for coupling to a communication link transporting from said network said broadband digital information and two-way control signaling;

said control terminal being coupled to said communication link transporting said broadband digital information and two-way control signaling through a coupling including;

a first interface unit located at the premise including a radio frequency transmitter and a radio frequency receiver for transmitting and receiving spread spectrum radio frequency signals carrying broadband digital information responsive to signals received from said control terminal, and receiving and translating from spread spectrum radio frequency signals and delivering to said control terminal a broadband signal;

a second interface unit located at the premise receiving and transmitting two-way control signals including upstream signals corresponding to signals received from said control terminal and downstream signals corresponding to signals received from said terminating link;

said second interface unit including a power line transporting said two-way control signals on carriers modulated by control signals corresponding to said downstream control signals emanating from said terminating link and said upstream control signals emanating from said control terminal.

8. A system according to claim 7 wherein said coupling includes a demultiplexer which separates from said broadband digital information a signal selected by said control terminal and delivers said separated signal to one of said user terminals.

9. A system according to claim 8 wherein the broadband digital information is transported in a compressed encoded form and said coupling includes a decoder which decodes said broadband digital information.

10. A system according to claim 7 wherein the broadband digital information includes multiple compressed multiplexed digital channels.

11. A system according to claim 7 wherein upstream control signals on said power line are responsive to downstream polling signals.

12. A system according to claim 7 wherein each pair of first and second interface units is coupled to said terminating link via an interface module which includes:

a first signal selector which selects from multiple broadband signals carried by said terminating link a group of said broadband signals responsive to an upstream control signal corresponding to user input to said control terminal; and

a second signal selector which selects from said group of broadband signals a signal carrying the video content responsive to an upstream control signal corresponding to user input to said control terminal.

13. A system according to claim 12 wherein one of said selectors is a frequency selector.

14. A system according to claim 12 wherein one of said selectors is a CDMA selector.

15. A system according to claim 7 wherein said spread spectrum signals are frequency hopped spread spectrum signals.

16. A method of providing on premise distribution of an interactive communication service establishing multiple communication links between selected ones of a plurality of available information service providers and control terminals for multiple video terminals on a premise, each said communication link providing downstream transport of broadband, digital information to the control terminals, comprising the steps of:

multiplexing broadband digital information, including video and audio, and control signals;

establishing on premise spread spectrum radio frequency links to said control terminals, said links transporting selected broadband information;

converting multiple selected broadband digital information delivered to said on premise radio frequency links to analog video and audio signals delivered to ones of said video terminals;

using CDMA codes unique to said spread spectrum radio frequency links and control terminals;

establishing on premise power line radio frequency links to said control terminals, said power line radio frequency links transporting two way control signaling to and from said communication link.

17. A customer premise installation for distributing on said premise from a communication network terminating link broadband digital information and two-way narrow band control signals, comprising:

plural user video terminals each connected to a collocated control terminal;

each video terminal being coupled to said terminating link through a coupling including a pair of interface units for each of said video terminals;

a first interface coupler in each pair of interface units comprising a receiver and a transmitter for respectively receiving and transmitting radio frequency signals, said transmitter transmitting radio frequency signals including a broadband digital information signal and said receiver receiving said radio frequency signals and translating from said radio frequency signals and delivering to said video terminal broadband signals;

a second interface coupler in each pair of interface units receiving and transmitting said two-way control signals including upstream signals corresponding to signals received from one of said control terminals and downstream signals corresponding to signals received from said terminating link;

said second interface coupler in each pair of interface units including a power line transporting said two-way control signals on carriers modulated by control signals corresponding to said downstream control signals emanating from said terminating link and upstream control signals emanating from said one control terminal.

18. An installation according to claim 17 wherein upstream control signals on said power line are responsive to downstream polling signals.

19. An installation according to claim 17 wherein each said pair of interface units is coupled to said terminating link via an interface module which includes:

a first signal selector which selects from multiple broadband signals carried by said terminating link a group of said broadband signals responsive to an upstream control signal corresponding to user input to said control terminal; and

a second signal selector which selects from said group of broadband signals a signal carrying the video content responsive to an upstream control signal corresponding to user input to said control terminal.

20. An installation according to claim 19 wherein one of said selectors is a frequency selector.

21. An installation according to claim 19 wherein one of said selectors is a CDMA selector.