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US3842403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical remote control system
Assignee: Thomas International Corp
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Filing: 1973-03-16
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Granted: 1974-10-15
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Expires: 1993-03-16
Abstract
Abstract A control including a transmitter and a receiver for remotely operating a device wherein the receiver and transmitter are powered by alternating current power supplies having a known phase relationship. The system transmits a signal comprising a series of single polarity pulses having a known phase relationship to and derived from the output of the alternating current power supply and different receiver outputs are provided depending on the polarity of the transmitted pulses. The transmission may be by light radiation.
Inventors
- 👤 J Konopka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:06
CPC Classifications
H; H04; H04B; H04B10/00; H04L; H04L27/00; H04L27/18; H04L27/24
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
210 words
A remote control for use with a power supply providing alternating current power, comprising: a transmitter connected to said power supply having means for transmitting a signal during an interval of time corresponding selectively to either the positive going or negative going portion of said alternating current power, said transmitter including radiation means, first and second diodes, and switch means connected in circuit with said first and second diodes and said radiation means whereby either said first or said second diode may be connected in series with said radiation means; and a receiver connected to said power supply to have phase correlation with the transmitter and having means for detecting the transmitted signal and means providing selectively different outputs corresponding to the time at which said signal is transmitted, said receiver including a pair of electronic switches, one switch being responsive to a signal transmitted during an interval of time corresponding to the negative going portion of said alternating current power to provide a first output and the other switch being responsive to a signal transmitted during an interval of time corresponding to the positive going portion of said alternating current power to provide a second output, and means for causing operation of one or the other of said switches.
Claim 2
Dependent Claim
210 words
A remote control for use with a power supply providing alternating current power, comprising: a transmitter connected to said power supply having means for transmitting a signal during an interval of time corresponding selectively to either the positive going or negative going portion of said alternating current power, said transmitter including radiation means, first and second diodes, and switch means connected in circuit with said first and second diodes and said radiation means whereby either said first or said second diode may be connected in series with said radiation means; and a receiver connected to said power supply to have phase correlation with the transmitter and having means for detecting the transmitted signal and means providing selectively different outputs corresponding to the time at which said signal is transmitted, said receiver including a pair of electronic switches, one switch being responsive to a signal transmitted during an interval of time corresponding to the negative going portion of said alternating current power to provide a first output and the other switch being responsive to a signal transmitted during an interval of time corresponding to the positive going portion of said alternating current power to provide a second output, and means for causing operation of one or the other of said switches.
Claim 3
Dependent Claim
134 words
A remote control for use with a power supply providing alternating current power, comprising: a transmitter connected to said power supply having means for transmitting a signal during an interval of time corresponding selectively to either the positive going or negative going portion of said alternating current power; a receiver connected to said power supply to have phase correlation with the transmitter and having means for detecting the transmitted signal and means providing selectively different outputs corresponding to the time at which said signal is transmitted; and a reversing switch for reversing the polarity of the connection of the receiver to said power supply whereby the receiver may be caused to be in phase with the transmitter when the connector to said power supply causes said receiver to be 180* out of phase therewith.
Claim 4
Dependent Claim
134 words
A remote control for use with a power supply providing alternating current power, comprising: a transmitter connected to said power supply having means for transmitting a signal during an interval of time corresponding selectively to either the positive going or negative going portion of said alternating current power; a receiver connected to said power supply to have phase correlation with the transmitter and having means for detecting the transmitted signal and means providing selectively different outputs corresponding to the time at which said signal is transmitted; and a reversing switch for reversing the polarity of the connection of the receiver to said power supply whereby the receiver may be caused to be in phase with the transmitter when the connector to said power supply causes said receiver to be 180* out of phase therewith.
Claim 5
Dependent Claim
121 words
A remote control for use with a power supply providing alternating current power, comprising: a transmitter connected to said power supply having means for transmitting a signal during an interval of time corresponding selectively to either the positive going or negative going portion of said alternating current power; and a receiver connected to said power supply to have phase correlation with the transmitter and having means for detecting the transmitted signal and means providing selectively different outputs corresponding to the time at which said signal is transmitted, said receiver including a balance control, a differential amplifier, parallel gated amplifiers connected between said balance control and differential amplifier, and sensing means for receiving said signal and delivering it to said balance control.
Claim 6
Dependent Claim
121 words
A remote control for use with a power supply providing alternating current power, comprising: a transmitter connected to said power supply having means for transmitting a signal during an interval of time corresponding selectively to either the positive going or negative going portion of said alternating current power; and a receiver connected to said power supply to have phase correlation with the transmitter and having means for detecting the transmitted signal and means providing selectively different outputs corresponding to the time at which said signal is transmitted, said receiver including a balance control, a differential amplifier, parallel gated amplifiers connected between said balance control and differential amplifier, and sensing means for receiving said signal and delivering it to said balance control.
Claim 7
Dependent Claim
126 words
A remote control for use with a power supply providing alternating current power, comprising: a transmitter connected to said power supply having means for transmitting a signal during an interval of time corresponding selectively to either the positive going or negative going portion of said alternating current power; and a receiver connected to said power supply to have phase correlation with the transmitter and having means for detecting the transmitted signal and means providing selectively different outputs corresponding to the time at which said signal is transmitted, said receiver including a single sensing element for receiving said signal from the transmitter and said signal is transmitted with the phase of the alternating current power provided to the receiver to control the output from said differential amplifier.
Claim 8
Dependent Claim
126 words
A remote control for use with a power supply providing alternating current power, comprising: a transmitter connected to said power supply having means for transmitting a signal during an interval of time corresponding selectively to either the positive going or negative going portion of said alternating current power; and a receiver connected to said power supply to have phase correlation with the transmitter and having means for detecting the transmitted signal and means providing selectively different outputs corresponding to the time at which said signal is transmitted, said receiver including a single sensing element for receiving said signal from the transmitter and said signal is transmitted with the phase of the alternating current power provided to the receiver to control the output from said differential amplifier.
Claim 9
Dependent Claim
129 words
A remote control transmitting information by means of a light beam generated by an alternating current power supply, comprising: a light transmitter connected to said power supply having means for transmitting light pulses during intervals of time corresponding selectively to only one of the positive polarity or negative polarity portions of said alternating current power; a light sensing receiver connected to said power supply and having means for detecting the transmitted single selected polarity light pulses and means providing selectively different outputs corresponding to the selected polarity of said transmitted light pulses, whereby said receiver is insensitive to full wave light to prevent spurious operation of the output means; and selector means for causing the polarity of said receiver to be in phase with the polarity of said transmitter.
Claim 10
Dependent Claim
129 words
A remote control transmitting information by means of a light beam generated by an alternating current power supply, comprising: a light transmitter connected to said power supply having means for transmitting light pulses during intervals of time corresponding selectively to only one of the positive polarity or negative polarity portions of said alternating current power; a light sensing receiver connected to said power supply and having means for detecting the transmitted single selected polarity light pulses and means providing selectively different outputs corresponding to the selected polarity of said transmitted light pulses, whereby said receiver is insensitive to full wave light to prevent spurious operation of the output means; and selector means for causing the polarity of said receiver to be in phase with the polarity of said transmitter.
Claim 11
Dependent Claim
59 words
The remote control of claim 5 wherein said light transmitter comprises lamp means, first and second reverse, paralleled diodes, and switch means connected in circuit with said first and second diodes and said lamp means whereby either said first or said second diode may be connected in series with said lamp means to provide said selected single polarity pulses.
Claim 12
Dependent Claim
67 words
The remote control of claim 6 wherein said receiver comprises a pair of electronic switches, one switch being responsive to a negative polarity pulse corresponding to the negative polarity portion of said alternating current power to provide a first output and the other switch being responsive to a positive polarity pulse corresponding to the positive polarity portion of said alternating current power to provide a second output.
Claim 13
Dependent Claim
14 words
The remote control of claim 5 wherein said receiver comprises a single sensing element.
References Cited (Backward Citations)
US2912683A
Cited
US3370284A
Cited
US3467858A
Cited
US3488632A
Cited
US3449619A
Cited
US3609451A
Cited
US3597755A
Cited
US3543260A
Cited
US3704461A
Cited
US3705986A
Cited
US3714451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |