Synthesized sound telephone alerting means

Details Synthesized sound telephone alerting means Synthesized sound telephone alerting means

1984-10-11

1986-09-02

Buczinski, Stephen C.

179 84R, H04M 121

Patent

active

H00001180

ABSTRACT:
A telephone with electronic telephone alerting circuitry which includes a telephone ringing detector, a sound synthesizer activated by the ringing detector and an amplifier-speaker arrangement responsive to the synthesizer. Whenever ringing is detected, the synthesizer is activated and caused to generate a specific signal sequence programmed into the synthesizer. The synthesized signal is amplified and applied to a transducer, such as a speaker, which produces the alerting sound. The synthesizer comprises a synthesis controlling processor and a memory for storing the parameters of the programmed signal sequence. The memory may be alterable or replaceable.

REFERENCES:
patent: 4371751 (1983-02-01), Hilligass, Jr. et al.
patent: 4480153 (1984-10-01), Festa
Cousino, "IC Doorbell Plays Your Song", Radio Electronics, Sept. 1975, pp. 33-35, 104.

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