Digital announcement system including remote loading and interro

Details Digital announcement system including remote loading and interro Digital announcement system including remote loading and interro

1981-03-23

1983-06-21

Brown, Thomas W.

179 2A, H04M 350, H04M 1500

Patent

active

043895468

ABSTRACT:
An automatic message, time and temperature announcement system wherein the signals to be announced are stored in digitized form in a random access memory (32). Under control of a CPU (15), blocks of digitized speech signals are provided to a FIFO (35) and from there to a CVSD digital to analog converter (37), the output of which is coupled (41) to a plurality of telephone trunks (42). A digital counter timer peripheral (26) is used to maintain a count of the time of day (32) and the frequency output (49) of a voltage to frequency converter (48) connected to a temperature sensor (40). Loading of digitized speech signals, correction factors for time of day, and other controls may be accomplished remotely through a data link (27, 30) from a standard voice grade telephone line (31).

REFERENCES:
patent: 4124773 (1978-11-01), Elkins
patent: 4229624 (1980-10-01), Haben et al.
patent: 4255618 (1981-03-01), Danner et al.
patent: 4277649 (1981-07-01), Sheinbein
"New Custom Calling Services", by Bergland et al., International Switching Symposium, Paris, May 11, 1979, pp. 1-7.

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