Claims
- 1. A call related information receiver unit inserted in series between a telephone line from a central office and an associated customer premises equipment comprising:a call related information processor adapted to receive call related information; a first telephone line interface adapted to interface said call related information processor to a customer premises equipment associated with said adjunct call related information receiver unit; a second telephone line interface adapted to interface said call related information processor to a central office; and a first hybrid echo canceler adapted to suppress signals relating to at least one of said first telephone line interface and said second telephone line interface containing call related information.
- 2. The call related information receiver unit according to claim 1, further comprising:a second hybrid echo canceler adapted to suppress signals relating to the other of said first telephone line interface and said second telephone line interface.
- 3. The call related information receiver unit according to claim 1, wherein:said call related information is caller ID information.
- 4. The call related information receiver unit according to claim 1, further comprising:a hybrid echo canceler adapted to suppress signals relating to a microphone signal of a customer premises equipment associated with said adjunct call related information receiver unit.
- 5. The call related information receiver unit according to claim 1, wherein said call related information processor comprises:a digital signal processor.
- 6. The call related information receiver unit according to claim 1, wherein:said call related information processor is adapted to disconnect a disconnectable path of a microphone signal from a customer premises equipment associated with said adjunct call related information receiver during a reception of call related information.
- 7. The call related information receiver unit according to claim 6, wherein:said disconnectable path is within said call related information processor.
- 8. The call related information receiver unit according to claim 6, further comprising:a codec to digitize a microphone signal from a customer premises equipment associated with said adjunct call related information receiver; said disconnectable path being within said codec.
- 9. The call related information receiver unit according to claim 6, wherein:said disconnectable path is between said first telephone line interface and said call related information processor.
- 10. The call related information receiver unit according to claim 6, wherein:said disconnectable path is between said customer premises equipment and said first telephone line interface.
- 11. The call related information receiver unit according to claim 1, wherein:said call related information receiver unit is adjunct to said customer premises equipment.
- 12. The call related information receiver unit according to claim 1, wherein:said second telephone line interface is adapted to interface said call related information processor to a telephone line from a central office.
- 13. The call related information receiver unit according to claim 1, wherein:said first telephone line interface is adapted to interface said call related information processor to a customer premises equipment associated with said adjunct call related information receiver unit; and said second telephone line interface is adapted to interface said call related information processor to a telephone line from a central office.
- 14. A method of receiving call related information in a call related information receiver, said method comprising:inserting said call related information receiver in series between a telephone line from a central office and an associated customer premises equipment; canceling a signal relating to said customer premises equipment from a signal containing call related information received from said telephone line; and receiving said call related information in a call related information processor; wherein said canceling is performed with a hybrid echo canceler.
- 15. The method of receiving call related information in a call related information receiver according to claim 14, further comprising:interfacing said call related information receiver to said customer premises equipment with a first telephone line interface.
- 16. The method of receiving call related information in a call related information receiver according to claim 15, further comprising:interfacing said call related information receiver to said telephone line from said central office with a second telephone line interface.
- 17. The method of receiving call related information in a call related information receiver according to claim 14, further comprising:interfacing said call related information receiver to said telephone line from said central office with a telephone line interface.
- 18. Apparatus for receiving call related information in a call related information receiver circuit, comprising:means for inserting said call related information receiver circuit in series between a telephone line from a central office and an associated customer premises equipment; means for canceling a signal from said customer premises equipment from a signal containing call related information received from said telephone line; means for receiving said call related information in a call related information processor; wherein said means for canceling comprises a hybrid echo canceler.
- 19. The apparatus for receiving call related information in a call related information receiver according to claim 18, further comprising:means for interfacing said call related information receiver to said customer premises equipment with a first telephone line interface.
- 20. The apparatus for receiving call related information in a call related information receiver according to claim 19, further comprising:means for interfacing said call related information receiver to said telephone line from said central office with a second telephone line interface.
- 21. The apparatus for receiving call related information in a call related information receiver according to claim 18, further comprising:means for interfacing said call related information receiver to said telephone line from said central office with a telephone line interface.
- 22. The apparatus for receiving call related information in a call related information receiver according to claim 18, wherein:said apparatus is adjunct to said customer premises equipment.
Parent Case Info
This application claims priority from U.S. application Ser. No. 08/991,482 now U.S. Pat. No. 5,943,407 entitled “Performance Enhancement Of Tone Detection And FSK Detection Using Hybrid Echo Cancellation” filed on Dec. 16, 1997.
US Referenced Citations (8)