Patent US3755744A successfully refreshed from Google Patents.
US3755744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receiving device for automatically demuting and remuting by two control signals sequentially transmitted from transmitter
Assignee: Individual
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Filing: 1971-06-25
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Granted: 1973-08-28
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Expires: 1991-06-25
Abstract
Abstract Apparatus to sense a first control signal and a second control signal transmitted after the first signal and having a duration or repetition rate different than the first signal. A controlled circuit is triggered to and self-held in the switching-in state in response to the first signal and restored in response to the second signal.
Inventors
- 👤 M Fukata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:06
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
162 words
A receiving device for control information formed by a first intermittent signal and a second continuous signal transmitted after the first signal, comprising: selection means for selecting the control information from a transmitted signal to convert it to at least one DC signal; mark-number-counting means coupled to the output of the selection means for generating a first output when the number of mark of DC signal exceeds a predetermined number N; time-measuring means coupled to the output of the selection means for generating a second output when the duration of the DC signal exceeds a predetermined time T; first control means coupled to the output of the mark-numbercounting means for triggering a control circuit to the switching-in state thereof in response to the first output and for holding the switching-in state of the control circuit; second control means coupled to the output of the time-measuring means for releasing the hold state of the first control means in response to the second output.
Claim 2
Dependent Claim
162 words
A receiving device for control information formed by a first intermittent signal and a second continuous signal transmitted after the first signal, comprising: selection means for selecting the control information from a transmitted signal to convert it to at least one DC signal; mark-number-counting means coupled to the output of the selection means for generating a first output when the number of mark of DC signal exceeds a predetermined number N; time-measuring means coupled to the output of the selection means for generating a second output when the duration of the DC signal exceeds a predetermined time T; first control means coupled to the output of the mark-numbercounting means for triggering a control circuit to the switching-in state thereof in response to the first output and for holding the switching-in state of the control circuit; second control means coupled to the output of the time-measuring means for releasing the hold state of the first control means in response to the second output.
Claim 3
Dependent Claim
162 words
A receiving device for control information formed by a first continuous signal and a second intermittent signal, transmitted after the first signal, comprising; selection means for selecting the control information from a transmitted signal to convert it to at least one DC signal; time-measuring means coupled to the output of the selection means for generating a first output when the duration of the DC signal exceeds a predetermined time T; mark-number-counting means coupled to the output of the selection means for generating a second output when the number of mark of DC signal exceeds a predetermined number N; first control means coupled to the output of the time-measuring means for triggering a control circuit to the switching-in state thereof in response to the first output and for holding the switching-in state of the control circuit, second control means coupled to the output of the mark-number-counting means for releasing the hold state of the first control means in response to the second output.
Claim 4
Dependent Claim
162 words
A receiving device for control information formed by a first continuous signal and a second intermittent signal, transmitted after the first signal, comprising; selection means for selecting the control information from a transmitted signal to convert it to at least one DC signal; time-measuring means coupled to the output of the selection means for generating a first output when the duration of the DC signal exceeds a predetermined time T; mark-number-counting means coupled to the output of the selection means for generating a second output when the number of mark of DC signal exceeds a predetermined number N; first control means coupled to the output of the time-measuring means for triggering a control circuit to the switching-in state thereof in response to the first output and for holding the switching-in state of the control circuit, second control means coupled to the output of the mark-number-counting means for releasing the hold state of the first control means in response to the second output.
Claim 5
Dependent Claim
189 words
A receiving device for control information which is formed by a first intermittent signal and a second intermittent signal transmitted after the first signal and in which the first signal and the second signal are different from each other in the number of mark and/or in the space duration and/or in the mark duration, comprising: selection means for selecting the control information from a transmitted signal to convert it to at least one DC signal; first mark-number-counting means coupled to the output of the selection means for generating a first output only when the first signal enters said means; second mark-number-counting means coupled to the output of the selection means for generating a second output only when the second signal enters said means; first control means coupled to the output of the first mark-number-counting means for triggering a control circuit to the switching-in state thereof in response to the first output and for holding the switching-in state of the control circuit; second control means coupled to the output of the second mark-number-counting means for releasing the hold state of the first control means in response to the second output.
Claim 6
Dependent Claim
189 words
A receiving device for control information which is formed by a first intermittent signal and a second intermittent signal transmitted after the first signal and in which the first signal and the second signal are different from each other in the number of mark and/or in the space duration and/or in the mark duration, comprising: selection means for selecting the control information from a transmitted signal to convert it to at least one DC signal; first mark-number-counting means coupled to the output of the selection means for generating a first output only when the first signal enters said means; second mark-number-counting means coupled to the output of the selection means for generating a second output only when the second signal enters said means; first control means coupled to the output of the first mark-number-counting means for triggering a control circuit to the switching-in state thereof in response to the first output and for holding the switching-in state of the control circuit; second control means coupled to the output of the second mark-number-counting means for releasing the hold state of the first control means in response to the second output.
Claim 7
Dependent Claim
192 words
A receiving device for control information including: a first signal and a second signal; one of said signals being intermittent and the other being selected from the group consisting of an intermittent signal and a continuous signal; selection means for selecting the control information from a transmitted signal to convert it to one DC signal; means for generating a first output; means for generating a second output; said generating means being selected from the group consisting of a mark-number-counting means coupled to the selection means generating an output when the number of mark of each intermittent DC signal exceeds a predetermined number N, and a time measuring means coupled to the output of the selection means for generating an output when the output of any continuous DC signal exceeds a predetermined time T; first control means coupled to said first output for triggering a control circuit to the switching-in state thereof in response to the first output and for holding the switching-in state of the control circuit; and second control means coupled to the second output for releasing the hold state of the first control means in response to the second output.
Claim 8
Dependent Claim
192 words
A receiving device for control information including: a first signal and a second signal; one of said signals being intermittent and the other being selected from the group consisting of an intermittent signal and a continuous signal; selection means for selecting the control information from a transmitted signal to convert it to one DC signal; means for generating a first output; means for generating a second output; said generating means being selected from the group consisting of a mark-number-counting means coupled to the selection means generating an output when the number of mark of each intermittent DC signal exceeds a predetermined number N, and a time measuring means coupled to the output of the selection means for generating an output when the output of any continuous DC signal exceeds a predetermined time T; first control means coupled to said first output for triggering a control circuit to the switching-in state thereof in response to the first output and for holding the switching-in state of the control circuit; and second control means coupled to the second output for releasing the hold state of the first control means in response to the second output.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |