Method of and apparatus for exchanging compatible universal identification telephone protocols over a public switched telephone network
OwnerRichard David Greenblattinventor
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Abstract
A method of and apparatus for providing compatible universal identification telephone protocols by generating predetermined unique audio sequences recognizable by the telephone user as defining standardized Audio Icon information and distinct from and separated from one another and other telephonically transmitted signals; sending and receiving such generated audio sequences on a public switched telephone network having paths the parameters of which fall within predetermined specified training sets, including modem performance standards; and assuring recognition and correct identification of such audio sequences conveyed along such paths.
Claims17
A method of providing compatible universal identification telephone protocols for use in a telephone system wherein a plurality of telephones communicate over a telephone channel via a public switched telephone network, said telephone protocols using Audio Icon signals consisting of predetermined standardized sequences of unique audio signals of complex rapidly changing spectrum having assigned predetermined meaning and distinct from dial, busy and ringing tones, the method comprising the steps of:
- initiating a telephone call from one telephone to a second telephone over the telephone channel;
- generating an Audio Icon signal at the second telephone in response to said telephone call;
- sending the generated Audio Icon signal over the telephone channel to said one telephone;
- and
- recognizing the Audio Icon signal received at said one telephone by processing and testing the Audio Icon signal to confirm the correct identification of the Audio Icon signal.
Apparatus for use in providing compatible universal identification telephone protocols in a telephone system wherein a plurality of telephones communicate over a telephone channel via a switched telephone network;
- said telephone protocols using Audio Icon signals consisting of predetermined standardized sequences of unique audio signals of complex rapidly changing spectrum having assigned predetermined meaning and distinct from dial, busy and ring tones, the apparatus comprising:
- means for initiating a telephone call from one telephone to a second telephone over the telephone channel;
- means for generating an Audio Icon signal at the second telephone in response to said telephone call;
- means for sending the generated Audio Icon signal over the telephone channel to said one telephone;
- and
- means for recognizing the Audio Icon signal received at said one telephone including signal processing and testing means to confirm the correct identification of the Audio Icon signal.
Dependencies are inferred from the claim text.