US3600517A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dial pulse decoders
Assignee: Individual
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Filing: 1968-05-06
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Granted: 1971-08-17
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Expires: 1988-05-06
Abstract
Abstract An automatic telephone answering and message recording device is described which permits remote control of the device by providing audible signals to instruct persons, familiar with the spacial code set into the machine, in what sequence to transmit the code from the remote location. The decoding device includes dial pulse responsive detectors which analyze the pulses, and their times of transmission, to provide a control pulse when the proper code has been sent, received, and decoded. The control pulse is used to play back recorded messages, to erase the recorded messages, and to change the announcement message. In one embodiment the dial pulse detectors comprise a plurality of counting wheels with a plurality of holes therein which, when interrogated by a light beam, generates the control signal if the holes in the counting wheels are in alignment.
Inventors
- 👤 David M Goodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:54
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/64; H04M1/65; H04M1/652
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
109 words
A decoding device responsive to incoming coded impulses comprising in combination: means for generating a plurality of spaced apart instruction signals; means for transmitting the instruction signals exteriorly of the device so as to define a plurality of sequential operating intervals which exist between said signals, said intervals being long enough to embrace a plurality of incoming coded impulses; means for receiving the incoming coded impulses; and decoding means for comparing the received coded impulses against a predetermined code; said decoding means comprising detection means responsive to the coded impulsEs rendered operable substantially only during a selected one of said operating interval by means independent of said incoming pulses.
Claim 2
Dependent Claim
109 words
A decoding device responsive to incoming coded impulses comprising in combination: means for generating a plurality of spaced apart instruction signals; means for transmitting the instruction signals exteriorly of the device so as to define a plurality of sequential operating intervals which exist between said signals, said intervals being long enough to embrace a plurality of incoming coded impulses; means for receiving the incoming coded impulses; and decoding means for comparing the received coded impulses against a predetermined code; said decoding means comprising detection means responsive to the coded impulsEs rendered operable substantially only during a selected one of said operating interval by means independent of said incoming pulses.
Claim 3
Dependent Claim
27 words
A device according to claim 1 wherein said last mentioned detection means comprises counting means responsive to the number of impulses received during the selected operating interval.
Claim 4
Dependent Claim
35 words
A device according to claim 1 wherein said decoding means comprises first detection means operable substantially only during a first selected operating interval and second detection means operable substantially only during a different operating interval.
Claim 5
Dependent Claim
41 words
A device according to claim 3 wherein said first and second detection means comprise first and second means, respectively, for counting and storing the number of impulses received solely during the operating interval with which each said detection means is associated.
Claim 6
Dependent Claim
30 words
The device of claim 4 including means for interrogating said first and second detection means, thereby to provide a control signal when the counts stored correspond to the predetermined code.
Claim 7
Dependent Claim
39 words
The combination of claim 1 including means for connecting the device to a telephone line; wherein said means for generating the instruction signals generate relatively brief instruction signals, in the audio frequency range, separated by relatively long operating intervals.
Claim 8
Dependent Claim
122 words
A pulse decoder responsive to coded incoming pulse groups comprising: a plurality of counters responsive to the incoming pulses: commutator means with a plurality of commutator segments; circuit connecting means; drive means operating independent of said incoming pulse groups to engage in sequence said commutator segments with said circuit connecting means thereby to make active in sequence said pulse counters; means synchronized with said drive means for generating spaced apart instruction signals which define therebetween the operating intervals when each of said pulse counters is made active; means for transmitting the instruction signals exteriorly of the device; and means to interrogate said counters thereby to provide a control signal when the counters register a sequence of counts which matches a predetermined sequence.
Claim 9
Dependent Claim
122 words
A pulse decoder responsive to coded incoming pulse groups comprising: a plurality of counters responsive to the incoming pulses: commutator means with a plurality of commutator segments; circuit connecting means; drive means operating independent of said incoming pulse groups to engage in sequence said commutator segments with said circuit connecting means thereby to make active in sequence said pulse counters; means synchronized with said drive means for generating spaced apart instruction signals which define therebetween the operating intervals when each of said pulse counters is made active; means for transmitting the instruction signals exteriorly of the device; and means to interrogate said counters thereby to provide a control signal when the counters register a sequence of counts which matches a predetermined sequence.
Claim 10
Dependent Claim
39 words
The device of claim 7 including means for coupling the device to a telephone line; wherein said means for generating the instruction signals generate relatively brief instruction signals, in the audio frequency range, separated by relatively long operating intervals.
Claim 11
Dependent Claim
21 words
The device of claim 7 including commutator means driven by said drive means for actuating the means to interrogate the counters.
Claim 12
Dependent Claim
66 words
The device of claim 7 wherein the means to interrogate the counters comprise a source of radiation and a detector responsive thereto; wherein each of said counters include a driveable member having an opening therein; and wherein said openings are in alignment only when the counter have registered a predetermined sequence of counts, thereby to allow transmission of the radiation from said source to said detector.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |