Telephony end user interface in an HFC access network

• US 7,073,075 B2
• Filed: 11/27/2001
• Issued: 07/04/2006
• Est. Priority Date: 11/27/2001
• Status: Expired due to Term

• Current Assignee: ARRIS Enterprises LLC (CommScope Holding Company, Inc.)
• Original Assignee: General Instrument Corporation (CommScope Holding Company, Inc.)
• Inventors: Freyman, Phillip Kent, Ady, Roger William
• Primary Examiner(s): Cottingham, John R.
• Application Number:
  US09/997,103
• Publication Number:
  US 20030101373A1
• Time in Patent Office: 1,680 Days
• Field of Search: 713/300, 713/340, 708/109, 714/22, 365/229
• US Class Current: 713/300
• CPC Class Codes: H04Q 11/0471 Terminal access circuits
• CPC Class Codes: H04Q 2213/13012 Hybrid fiber coax, HFC
• CPC Class Codes: H04Q 2213/13031 Pulse code modulation, PCM
• CPC Class Codes: H04Q 2213/13034 A/D conversion, code compression/expansion
• CPC Class Codes: H04Q 2213/1308 Power supply
• CPC Class Codes: H04Q 2213/13093 Personal computer, PC
• CPC Class Codes: H04Q 2213/13096 Digital apparatus individually associated with a subscriber line, digital line circuits
• CPC Class Codes: H04Q 2213/13106 Microprocessor, CPU
• CPC Class Codes: H04Q 2213/13166 Fault prevention
• CPC Class Codes: H04Q 2213/13167 Redundant apparatus
• CPC Class Codes: H04Q 2213/13175 Graphical user interface [GUI], WWW interface, visual indication
• CPC Class Codes: H04Q 2213/13202 Network termination [NT]
• CPC Class Codes: H04Q 2213/13209 ISDN
• CPC Class Codes: H04Q 2213/13292 Time division multiplexing, TDM
• CPC Class Codes: H04Q 2213/1332 Logic circuits
• CPC Class Codes: H04Q 2213/13389 LAN, internet

Abstract

System (100) and method for providing power supply status indications and network-originated messages on a user device interface (104) of a user device (102) coupled to an access device (110). The access device (110) receives a supply of main power from a main power supply (204), and the access device (110) is adapted to interface with a communications network (111). A backup power supply (206) is coupled to the access device (110) and is adapted to supply backup power to the access device (110) when the supply of main power (214) fails. The backup power supply (206) provides a signal indicating a power condition of the backup power supply (206) when the supply of main power (214) fails. A processor unit (208) receives the signal and generates a backup power supply status indication in response to the signal. At least one user device (102) is coupled to the access device (110) and also is adapted to receive and/or transmit information over the communications network (111) via the access unit (110). The user device (102) receives the backup power supply status indication and the status indication is communicated to a user through a user device interface (104) coupled to the user device (102).

Claims

1. An access device for providing messages to a user device comprising:

a network interface unit having an interface to receive network communications signals and a signal output to provide a first communications signal;

interface circuitry having an input to receive user device communications signals and an output to provide a second communications signal;

a processing unit having a first input coupled to said interface circuitry output. a second input to receive power supply status signals, a storage output to provide control signals and a second output to provide a power supply status indication;

a storage unit having a first input coupled to said network interface unit signal output to receive network-originated messages, said storage unit having a second input coupled to said processing unit storage output to receive said control signals, said storage unit having an output to provide received messages; and

a line driver having a first input coupled to said network interface unit signal output and a second input coupled to said storage unit output, a third input coupled to said second output of said processing unit, said line driver having a drive output to provide said first communications signal, said received messages and said power supply status indication.

2. An access device as in claim 1, wherein said storage unit output provides at least one received message responsive to a user device assuming an off-hook state.

3. An access device as in claim 2, wherein at least one of said received messages comprises at least one of a public announcement, a weather announcement, a subscription service message, a voice mail message, and a warning message.

4. An access device as in claim 2, wherein at least one of said received messages comprises at least one of a tone and a melody.

5. An access device as in claim 2, wherein the access device is an EMTA.

6. An access device as in claim 2, wherein the access device is a cable access unit.

7. A system for providing a backup power supply status indication to a user device, comprising:

a line driver having a power input to receive power and a network interface to receive communications signals from a communications network;

a backup power supply having a power output coupled to said line driver power input, said backup power supply adapted to supply backup power to said line driver when the supply of main power fails, said backup power supply having a status output to provide a signal indicating a power condition of said backup power supply;

a processor unit having a first input coupled to said backup power supply status output, said processor unit having a first output to provide a backup power supply status indication in response to said signal, said processor unit first output coupled to a second input of said line driver;

a storage unit having a first input to receive messages from said communications network, said storage unit having an output coupled to a third input of said line driver to provide a received message; and

at least one user device having an input coupled to a drive output of said line driver to receive at least one of the backup power supply status indication and one or more of said received messages.

8. A system as in claim 7, further comprising:

interface circuitry having an input coupled to an output of said at least one user device, said interface circuitry having an output to provide an indication that a user device has assumed an off-hook state, said interface circuitry output coupled to a second input of said processing circuitry, said processing circuitry having a second output coupled to a second input of said storage unit to provide a control signal, at least one of said received messages provided by said storage unit output in response to said control signal.

9. A system as in claim 8, wherein the backup power supply status indication comprises an indication that the backup power supply is on.

10. A system as in claim 8, wherein the backup power supply status indication comprises a voice message indicating the power condition of said backup power supply status.

11. A system as in claim 8, wherein the backup power supply status indication comprises an audible sound associated with the power condition of said backup power supply status.

12. A system as in claim 8, wherein the line driver and processing unit are contained in an EMTA.

13. A system as in claim 8, wherein the line driver and processing unit are contained in a cable access unit.

14. A system as in claim 8, wherein the user device is selected from a phone set, a computer, an answering machine, a facsimile machine, and a television.

15. A system as in claim 8, wherein a plurality of user devices are coupled to the access device.

16. A system as in claim 7 wherein the backup power supply status indication indicates that the backup power supply is low on power capacity.