Portable automatic number outpulser
First Claim
1. In an automatic digit outpulser for use in conjunction with a telephone, comprisinga portable electronic card having electronic circuitry encased within the card,a low-profile acoustic device mounted in the card and arranged for accoustically coupling the card to a transmitter of the telephone and, in the electronic circuitry,means for storing representations of digits to be outpulsed,means for converting the stored representations into audible frequency output signals, andmeans for transmitting the output signals to the acoustic device, the improvement comprising a plurality of first storage words containing the stored digit representations, and a plurality of second storage words containing information for controlling the generation of interdigital timing periods, with ones of the first storage words being arranged in a prescribed sequence with ones of the second storage words.
0 Assignments
0 Petitions
Accused Products
Abstract
An automatic, portable digit outpulser for use with a telephone is disclosed. In one preferred embodiment, the outpulser resembles a credit card encasing electronic circuitry and having a low-profile acoustic device mounted on one surface of the card for acoustically coupling the outpulser to the transmitter of a telephone. Optical and mechanical coupling arrangements are also disclosed. The electronic circuitry includes a memory for storing representations of telephone digits to be outpulsed and multifrequency signal generating circuitry for generating audio frequency signals, similar to those generated by a standard telephone equipped with a multifrequency key set, in accordance with the stored digit representations. The memory also contains control data words which are individually alternated in sequence with digit words. The signal generating circuitry is directly responsive to the digit and control words for generating both digit signals and interdigital timing periods.
-
Citations
16 Claims
-
1. In an automatic digit outpulser for use in conjunction with a telephone, comprising
a portable electronic card having electronic circuitry encased within the card, a low-profile acoustic device mounted in the card and arranged for accoustically coupling the card to a transmitter of the telephone and, in the electronic circuitry, means for storing representations of digits to be outpulsed, means for converting the stored representations into audible frequency output signals, and means for transmitting the output signals to the acoustic device, the improvement comprising a plurality of first storage words containing the stored digit representations, and a plurality of second storage words containing information for controlling the generation of interdigital timing periods, with ones of the first storage words being arranged in a prescribed sequence with ones of the second storage words.
-
8. A portable automatic digit outpulsing device for use in conjunction with a telephone, comprising electronic circuitry encased within the device,
means affixed to the device for coupling the electronic circuitry to the telephone, said electronic circuitry including a memory for alternately storing in sequential memory locations coded representations of digits to be outpulsed to the telephone and first control signals, an oscillator for generating address signals to the memory to read sequentially the contents of the memory locations, multifrequency signal generating means, electronic switch means responsive to the coded representations of digits for controlling the generating means to generate multifrequency signals to the coupling means in accordance with the coded representations of digits, wherein said multifrequency signal generating means and said electronic switch means are responsive to the first control signals for generating interdigital intervals.
-
9. A portable device having electronic circuitry encased therein for use in conjunction with a telephone, said electronic circuitry comprising
multifrequency generating means controllable for selectively generating in combination or singularly a plurality of single frequency signals, storage means having a plurality of storage words each individually addressable and each having a plurality of storage bits each for controlling the generation of a different single frequency signal by the multifrequency generating means, wherein each of a plurality of first words of the storage means has at least two of its storage bits set to a prescribed state defining a multifrequency output signal to be generated representative of a telephone digit, and wherein each of a plurality of second words of the storage means located alternately and sequentially with respect to each of the first words has its respective bit locations set to another prescribed state for controlling the multifrequency generating means to generate no output signal, and oscillator means for generating address signals to read the storage words sequentially at prescribed intervals, and wherein the device comprises means for coupling the output signals from the multifrequency generating means to the telephone.
-
10. A portable digit outpulser for use with a telephone having a transmitter, comprising
a memory containing a plurality of first and second storage words, individual ones of said first storage words being arranged alternately in sequence with individual ones of said second storage words, means for sequentially addressing the storage words, means responsive to information contained in each said first word of the memory for generating a multifrequency output signal representing a telephone digit, and responsive to information contained in each said second word for generating an interdigital timing period, and means for coupling the multifrequency output signals to the telephone.
-
15. A portable electronic device for use in conjunction with a telephone station comprising means for coupling signals from the device to the telephone and
logic circuitry encased within the device connected to the coupling means, said circuitry including means for storing in alternate storage words first coded data designating audio frequency signals to be generated representative of digits and second control data, means for sequentially addressing the first and second storage words, means responsive to a receipt of the first data from one of the storage words for generating the audio frequency signals designated thereby and for transmitting the signals to the coupling means, and means responsive to a receipt of the second data from one of the storage words for generating a prescribed time interval between individual transmissions of the signals to the coupling means.
Specification