Automatic telephone call generator

Details Automatic telephone call generator Automatic telephone call generator

1975-10-28

1977-10-11

Claffy, Kathleen H.

H04M 151

Patent

active

040537188

ABSTRACT:
The invention relates to an automatic telephone call generator comprising a keyboard having digital keys emitting digital signals and function keys each emitting a special signal, a memory store comprising a plurality of memory location registers having a predetermined capacity, an addressing device for the said memory location registers of the said store, means for writing the digits of the coded call numbers in binary coded form in the said store, a reading register of the digital signals read in the store, a call pulse emitter and a control circuit of the said call pulse emitter, wherein the generator only comprises two function keys and each memory location register can contain one or two call numbers each having a random number of digits, whereby the total number of digits is less than the memory location register capacity less one unit, wherein the two call numbers of one and the same memory location register are on recording separated by a first special signal, wherein the final part of the memory location register beyond the first number, if there is only one, or beyond the second number if there are two is filled by second special signals, and wherein the apparatus comprises detectors of the first and second special signals, means for commencing the reading of the store either at the start of a selected memory location register or at the first special signal detected by the said special signal detector and for stopping this reading at the first special second signal detected by the said detector.

REFERENCES:
patent: 3662118 (1972-05-01), Phoenix et al.
patent: 3670111 (1972-06-01), Bukosky et al.
patent: 3735050 (1973-05-01), Mardas
patent: 3860765 (1975-01-01), McCabe et al.
patent: 3873781 (1975-03-01), Nissim
patent: 3882284 (1975-05-01), Munday
patent: 3920926 (1975-11-01), Lenaerts et al.
patent: 3922646 (1975-11-01), Bevnon et al.
patent: 3932709 (1976-01-01), Hoff et al.
patent: 3943300 (1976-03-01), Stevenson

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