US3846639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for electric installations for use on vehicle
Assignee: Mitsubishi Electric Corp
•
Filing: 1973-03-21
•
Granted: 1974-11-05
•
Expires: 1993-03-21
Abstract
Abstract A transmitter responds to clock pulses to generate a pulse train including an index pulse and PWM intelligence pulses arranged in a predetermined order resulting from respective signal sources one for each electric installation. The pulse train is transmitted via a single line to plural detectors one for each electric installation. In each detector, that intelligence pulse assigned to it is sampled by counting the intelligence pulses for each occurrence of the index pulse. By discriminating its width, the sampled pulse is determined if it is to turn the associated electric installation ON. When determined so, the sampled pulse turns that electric installation ON.
Inventors
- 👤 A Ueda
- 👤 M Ishii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:26
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; H04J3/06; H04J3/0635; H04J3/0682; G; G01; G01R; G01R31/00; G01R31/005; G01R31/006; G08; G08C; G08C15/00; G08C15/06; G08C15/12; B; B60; B60R; B60R16/00; B60R16/02; B60R16/03; B60R16/0315
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
347 words
A control system for controlling electrically powered devices provided on a vehicle or the like, comprising in combination, a transmitter unit comprising a plurality of signal sources providing output signals having information content, each of said signal sources corresponding to an electrically powered device to be controlled, an index generator circuit for generating index pulses, an intelligence generator circuit, circuit means for applying said index pulses and said signal sources output signals to said intelligence generator circuit to generate intelligence pulses having said information content of said signal sources output signals, and a control generator circuit for receiving said index pulses and said intelligence pulses to provide control pulse trains comprised of said index pulses and said intelligence pulses; a transmission line comprising a singLe conductor connected to an output of said control generator circuit; and a plurality of signal detector means connected to said transmission line for receiving said control pulse trains, each of said signal detector means corresponding to an electrically powered device, each of said signal detector means comprising means for receiving said control pulse trains for separating said index pulses from said pulse trains, a counter circuit, means for applying said control pulse trains and said separated index pulses to said counter circuit for counting said intelligence pulses after each of said intelligence pulses after said separated index pulses are applied thereto; a decoder circuit connected to an output of said counter for detecting a predetermined count thereof corresponding to an electrically powered device to provide a separation pulse in response thereto, an intelligence separation circuit receptive of said separation pulse and said control pulse trains to separate from said control pulse trains intelligence pulses corresponding to said predetermined count of said counter and said electrically powered device, a pulse discrimination circuit receptive of said intelligence pulses separated by said intelligence separation circuit for providing output signals representative of said information content thereof, and a driving circuit receptive of said pulse discrimination circuit output signals for driving a corresponding electrically powered device in response to said output signals from said pulse discrimination circuit.
Claim 2
Dependent Claim
347 words
A control system for controlling electrically powered devices provided on a vehicle or the like, comprising in combination, a transmitter unit comprising a plurality of signal sources providing output signals having information content, each of said signal sources corresponding to an electrically powered device to be controlled, an index generator circuit for generating index pulses, an intelligence generator circuit, circuit means for applying said index pulses and said signal sources output signals to said intelligence generator circuit to generate intelligence pulses having said information content of said signal sources output signals, and a control generator circuit for receiving said index pulses and said intelligence pulses to provide control pulse trains comprised of said index pulses and said intelligence pulses; a transmission line comprising a singLe conductor connected to an output of said control generator circuit; and a plurality of signal detector means connected to said transmission line for receiving said control pulse trains, each of said signal detector means corresponding to an electrically powered device, each of said signal detector means comprising means for receiving said control pulse trains for separating said index pulses from said pulse trains, a counter circuit, means for applying said control pulse trains and said separated index pulses to said counter circuit for counting said intelligence pulses after each of said intelligence pulses after said separated index pulses are applied thereto; a decoder circuit connected to an output of said counter for detecting a predetermined count thereof corresponding to an electrically powered device to provide a separation pulse in response thereto, an intelligence separation circuit receptive of said separation pulse and said control pulse trains to separate from said control pulse trains intelligence pulses corresponding to said predetermined count of said counter and said electrically powered device, a pulse discrimination circuit receptive of said intelligence pulses separated by said intelligence separation circuit for providing output signals representative of said information content thereof, and a driving circuit receptive of said pulse discrimination circuit output signals for driving a corresponding electrically powered device in response to said output signals from said pulse discrimination circuit.
Claim 3
Dependent Claim
28 words
A control system according to claim 1, wherein said discrimination circuit develops output signals representative of a duration of said intelligence pulses separated by said intelligence separation circuit.
Claim 4
Dependent Claim
53 words
A control system according to claim 1 wherein said means for separating said index pulses from said control pulse trains comprises an integrator receptive of said control pulse trains and a level detector in cascade with said integrator for developing an output signal when an output of said integrator exceeds a predetermined level.
Claim 5
Dependent Claim
191 words
A control system according to claim 1 wherein said transmitter unit comprises a clock for generating clock pulses, a counter, means for applying said clock pulses to said counter, said counter developing in response to said clock pulses a sequence of output signals representative of a sequence of n-bit binary numbers, a decoder for developing wide index pulses and sequences of narrow sampling pulses in response to said counter output signals, means for applying said counter output signals to said decoder, a plurality of signal sources providing output signals having information content, each of said signal sources corresponding to one of said counter output signals representative of an n-bit binary number, an intelligence generator circuit for developing a sequence of intelligence pulses each having said information content of a corresponding one of said signal sources in response to said signal source output signals and said sampling pulses, means for applying said signal sources output signals and said sampling signals to said intelligence generator circuit, and a control generator circuit receptive of said intelligence pulses and said index pulses for providing control pulse trains comprising said intelligence pulses and said index pulses.
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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |