US4053718A
Expired / Lapsed
US
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Automatic telephone call generator
Assignee: SOPROGESPAR PROMOTION ET DE GESTION DE PARTICIPATIONS Ste
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Filing: 1975-10-28
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Granted: 1977-10-11
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Expires: 1995-10-28
Abstract
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.
Inventors
- 👤 Oscar Derveaux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:25
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/26; H04M1/27; H04M1/274; H04M1/2745; H04M1/27495; G; G04; G04G; G04G9/00; G04G9/0064; H04M15/00; H04M15/28; H04M15/30
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
266 words
An automatic telephone call generator comprising a keyboard having digital keys emitting digital signals and only two 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 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 equal to or 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 upon actuating one of said function keys, 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 upon actuating the other of said function keys, 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 first special signal detector and for stopping this reading when a second special signal is detected by said second special signal detector.
Claim 2
Dependent Claim
266 words
An automatic telephone call generator comprising a keyboard having digital keys emitting digital signals and only two 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 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 equal to or 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 upon actuating one of said function keys, 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 upon actuating the other of said function keys, 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 first special signal detector and for stopping this reading when a second special signal is detected by said second special signal detector.
Claim 3
Dependent Claim
204 words
An automatic telephone call generator according to claim 1, wherein the means for writing the digits of the call numbers in the store comprise means for writing a second call number in the store when it contains only one call number without it being necessary to re-write the latter or to change the first or second number when two call numbers have been recorded in the store without it being necessary to cancel the other or re-write it, whereby the said writing and changing means comprise a first flip-flop in the form of a binary divider controlled by said one of the function keys, a second flip-flop controlled by the second switching of the first flip-flop, an OR gate connected to the outputs of the two flip-flops, hence the output signal of the said OR gate has two possible compositions depending on whether the said one function key has been depressed once or twice, means for controlling the writing in the store by a first special signal alone or by a second special signal when one or other of the special signals is read in the store, so that the store is not positioned in writing until the end of scanning the first number.
Claim 4
Dependent Claim
87 words
An automatic telephone call generator according to claim 1, which comprises a staggered register, a source of recurrent deleting pulses of the staggered register, means for selectively connecting the said staggered register either to the reading register or to the said recurrent pulse source, a time counter, a displayer and means for selectively connecting the said displayer either to the staggered register so that it displays the call number to be transmitted, or to the time counter so that it displays the duration of the telephone call.
Claim 5
Dependent Claim
119 words
An automatic telephone call generator according to claim 1, comprising a detector for an invitation to transmit tone circulating on the telephone line to which detector the generator is connected, whereby the said detector controls the control circuit of the call pulse emitter, said generator further comprising additionally means for detecting the polarity reversal signal of the supply current on the line wires indicating that the person called has answered, means for triggering the time counter by the signal indicating that the person called has answered and for controlling by the said signal means for the selective connection of the said counter to the displayer and means for detecting and indicating line occupancy by the caller lifting the receiver.
Claim 6
Dependent Claim
176 words
An automatic telephone call generator according to claim 4, wherein the detector of the invitation to transmit tone comprises a pluse generator transforming the said tone formed by a sinusoidal signal into a pulse train of the same recurrence frequency as the said sinusoidal signal, a first mono-stable flip-flop receiving the said pulse train and having a switching time which is longer than the time lag between the pulses of the train, a second mono-stable flip-flop in cascade with the first having a predetermined switching period and an AND gate connected to the working output of the first mono-stable flip-flop by a time lag circuit and to the rest output of the second mono-stable flip-flop so that there will be a signal at the output of the said AND gate at a time following the appearance of the tone which is equal to the said predetermined period and if the tone ceases during a time equal to the time lag of the time lag circuit there is no signal at the output of the AND gate.
Claim 7
Dependent Claim
43 words
An automatic telephone call generator according to claim 4, wherein the control by the signal indicating that the person called has answered of the means for the selective connection of the time counter to the displayer takes place with a predetermined time lag.
Claim 8
Dependent Claim
92 words
An automatic telephone call generator according to claim 1, wherein the keyboard emitting the digital signals and the special signals is connected both to the addressing device of the memory location registers of the store for addressing the latter and to the means for writing in the store so that the call numbers enter the latter, whereby these connections are made through a selection circuit controlled by a key which emits a special signal which, in addition to the said special signal produces a function signal addressed to the said selection circuit.
Claim 9
Dependent Claim
82 words
An automatic telephone call generator according to claim 7, wherein the addressing device of the memory location registers of the store comprises an overflow terminal and means for making an overflow signal appear therein where the memory location register address dialled on the keyboard exceeds the capacity of the store, and wherein the selection circuit controlling the connections of the keyboard to the addressing device and to the writing means in the store has inhibitor means controlled by the said overflow signal.
Claim 10
Dependent Claim
25 words
An automatic telephone call generator according to claim 7, wherein the memory location register addressing device of the store is connected to an address displayer.
Claim 11
Dependent Claim
103 words
An automatic telephone call generator according to claim 7, wherein the memory location register addressing device of the store comprises a protection terminal and means for making a protection signal appear therein when it is forbidden to modify, replace or cancel the call number written at the address dialled on the keyboard and wherein the selection circuit controlling the connections of the keyboard to the addressing device and to the writing means in the store has inhibitor means of the said writing means controlled by the said protection signal and means for indicating an attempted modification replacement or cancellation of the said number.
Claim 12
Dependent Claim
80 words
An automatic telephone call generator according to claim 10, wherein the addressing device of the memory location registers of the store comprises terminals relative to the bits of the different binary weights of the address and wherein replaceable conductive U-links connect the said terminals to the protection terminals so that if the U-links corresponding to the bit of weight (2 i ) of the address is eliminated the addresses between (2 i and 2 i+1 -1) are no longer protected.
Claim 13
Dependent Claim
231 words
An automatic telephone call generator according to claim 1, which comprises means for detecting polarity reversal on the line wires producing the answering signal from the person called, means for detecting occupancy of the line by the call generator producing a signal resulting from the caller lifting the receiver, a first time lag circuit and a second time lag circuit returning the apparatus to the inoperative position at the end of their respective time lags unless they are stopped beforehand by control signals, means for selectively triggering the first time lag circuit by a keyboard key which produces a special signal and a function signal addressed to the said first time lag circuit, means for stopping during its time lag the said first time lag signal by an invitation to transmit tone, means for selectively triggering the second time lag signal by a signal indicating the end of transmission of the call number, means for stopping during its time lag the said second time lag circuit by the signal of the person called answering, means for selectively triggering the first time lag signal by the answering signal of the person called and means for stopping during its time lag the said first time lag circuit by the signal of the caller lifting the receiver and means for indicating the putting into operation of one or other of the time lag circuits.
Claim 14
Dependent Claim
165 words
An automatic telephone call generator according to claim 1 wherein the two parts of a telephone call number comprising a prefix and the actual number are on recording separated by the first special signal, wherein the addressing device of the memory location registers of the store comprises means for detecting the position of the first special signal making it possible to know whether the said first special signal has in its call number a position which is before or after a predetermined position, i.e. separates two numbers or a number and its prefix and wherein the control circuit of the call pulse emitter comprises means controlled by the detector of the first special signal for stopping transmission of the call number at the end of the prefix and means controlled by the invitation to transmit tone detector and by the said means for detecting the position of the first special signal for resuming transmission of the call number at the start of the actual number.
Claim 15
Dependent Claim
43 words
An automatic telephone call generator according to claim 13, wherein the means for detecting the position of the first special signal in the call number having a prefix make it possible to know whether the said first special signal has a predetermined position.
Claim 16
Dependent Claim
171 words
An automatic telephone call generator according to claim 1, which comprises a special displayer indicating nothing, 1 or 2 depending on whether the number to be written or to be read in the store is single or is the first or second number written in the selected memory location register, as well as an associated display selection circuit controlling the said special displayer, and means for detecting the position of the first special signal in the call number, whereby the said display selection circuit is controlled on the one hand by the special signal emitting keys which, in addition to the said special signal produce function signals addressed to the said display selection circuit and on the other hand by the detector of the first special signal and by the means for detecting the position of the first special signal in the call number in such a way that the first special signal controls said display selection circuit only when detected in the number at a position above a predetermined position.
Claim 17
Dependent Claim
63 words
An automatic telephone call generator according to claim 1, wherein the store is energised by the mains, rectified via a booster battery wherein the power supply device comprises an astable flip-flop and switching means controlled by a mains failure so that the voltage of the booster battery is substituted by the pulses of the astble flip-flop for the supply of the said store.
References Cited (Backward Citations)
US3662118A
Cited
US3670111A
Cited
US3735050A
Cited
US3873781A
Cited
US3922646A
Cited
US3932709A
Cited
US3943300A
Cited
US3860765A
Cited
US3920926A
Cited
US3882284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-10 | 1981-04-11 | 1981-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-10 | 1985-04-11 | 1985-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-10 | 1989-04-11 | 1989-10-11 | $7700.00 | Window Closed / Lapsed |