Telephone to computer audio interface

Details Telephone to computer audio interface Telephone to computer audio interface

1998-09-17

2003-09-02

Isen, Forester W. (Department: 2644)

Telephonic communications

Substation or terminal circuitry

C379S413040

Reexamination Certificate

active

06614906

ABSTRACT:

BACKGROUND
The present invention relates to audio interfaces between a telephone set and a computer.
Telephones, and telephone networks, are useful for voice communications. Also, it is generally known that computers may be connected to telephone subscriber lines by a modem. Such a connection may be useful for data and facsimile communications. However, typical known modems are not useful for processing voice and/or other audio information during a voice conversation conducted using a conventional telephone. What is needed is a telephone to computer audio interface capable of combining audio signals from the telephone with audio signals from the computer.
SUMMARY
Accordingly, an audio interface for coupling a telephone handset and a telephone base unit to a computer is provided. The audio interface comprises a feed through circuit coupled between the telephone handset and the telephone base unit and a buffer circuit connected to the computer. The buffer circuit is coupled to the feed through circuit, in one example, by one or more transformers that perform a bidirectional conversion between balanced signals of the feed through circuit and single-ended signals of the buffer circuit. In one example, the feed through circuit comprises a microphone circuit and an earpiece circuit. In one example, the buffer circuit has an output of a first buffer connected to an audio input of the computer and an input of a second buffer connected to an audio output of the computer.


REFERENCES:
patent: 4740955 (1988-04-01), Litterer et al.
patent: 5455859 (1995-10-01), Gutzmer
patent: 5625679 (1997-04-01), Gutzmer
patent: 6175565 (2001-01-01), McKinnon et al.

Affiliated with

Also associated with

Rating

Telephone to computer audio interface does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Telephone to computer audio interface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telephone to computer audio interface will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3094456