US3742447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital indicating and control apparatus and method
Assignee: Lear Corp EEDS and Interiors
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Filing: 1970-08-17
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Granted: 1973-06-26
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Expires: 1990-08-17
Abstract
Abstract The disclosure describes an improved apparatus and methods for electrically activating a desired load device and for determining whether the desired load device is operating properly. The preferred embodiment described in the specification comprises a sensor, such as a photoelectric cell, for generating an indicating signal if the desired load device, such as an automobile headlight, is operating properly. The sensor is connected to a send-receive module that applies a coded control signal to a signal transmitting path in response to the indicating signal. The signal transmitting path is connected to a receive module that receives the coded control signal and activates a control device, such as a display lamp, which indicates whether the automobile headlight is operating properly. The send-receive module receives another coded control signal over the signal transmitting path that operates the load device. Both the send-receive module and the receive module preferably comprise binary counters that respond to the coded control signals.
Inventors
- 👤 P Sognefest
- 👤 B Estes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:28
CPC Classifications
B; B60; B60Q; B60Q11/00; B60Q11/005
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
233 words
In an electrical control system comprising a source of electrical power, a harness for selectively conducting electrical power to one or more load devices, said harness comprising a signal transmission path and an electrical power path connected to said source, and sender means for selectively applying a fIrst control signal to said signal transmission path, improved means for activating at least a desired one of said load devices and for indicating the condition of said desired load device comprising in combination: a sensor for generating a predetermined indicating signal if said desired load device is in a predetermined condition; send-receive means connected to said electrical power and signal transmission paths for receiving said first control signal to selectively activate said desired load device and for applying a second control signal to said signal transmission path in response to said indicating signal from said sensor, said sendreceive means comprising a binary counter, means for resetting said binary counter, means for generating said second control signal when said indicating signal is produced during a predetermined counting state of said binary counter, and means for activating said desired load device in response to said first control signal during another predetermined counting state of said binary counter; and receive means connected to said electrical power and signal transmission paths for receiving said second control signal to activate a controlled device in response to said second control signal.
Claim 2
Dependent Claim
233 words
In an electrical control system comprising a source of electrical power, a harness for selectively conducting electrical power to one or more load devices, said harness comprising a signal transmission path and an electrical power path connected to said source, and sender means for selectively applying a fIrst control signal to said signal transmission path, improved means for activating at least a desired one of said load devices and for indicating the condition of said desired load device comprising in combination: a sensor for generating a predetermined indicating signal if said desired load device is in a predetermined condition; send-receive means connected to said electrical power and signal transmission paths for receiving said first control signal to selectively activate said desired load device and for applying a second control signal to said signal transmission path in response to said indicating signal from said sensor, said sendreceive means comprising a binary counter, means for resetting said binary counter, means for generating said second control signal when said indicating signal is produced during a predetermined counting state of said binary counter, and means for activating said desired load device in response to said first control signal during another predetermined counting state of said binary counter; and receive means connected to said electrical power and signal transmission paths for receiving said second control signal to activate a controlled device in response to said second control signal.
Claim 3
Dependent Claim
16 words
An electrical control system, as claimed in claim 1, wherein said sensor comprises a photo-electric cell.
Claim 4
Dependent Claim
244 words
Apparatus for controlling and indicating the operating state of a vehicular device comprising: means for generating a series of time-spaced clock pulses that define counting states which occur in cycles; means for generating a first series of control pulses, each of said pulses occurring during a predetermined one of said counting states in each cycle; means for transmitting said first series of control pulses over a transmission path; means for detecting the presence of said first series of control pulses; means for generating a first output signal in response to said detected first series of control pulses, said means for generating a first output signal comprising a counter; means for operating said vehicular device in response to said first output signal; means for generating an indicating signal in response to the operating characteristics of said operated vehicular device; means comprising said counter for generating a second series of control pulses in response to said indicating signal, each of said second series of control pulses occurring during a counting state in which no pulse in the first series is present; means for transmitting said second series of control pulses over said transmission path; means for detecting the presence of said second series of control pulses; means for generating a second output signal in response to said detected second series of control pulses; and means for indicating the operating condition of said operated vehicular device at a remote location in response to said second output signal.
Claim 5
Dependent Claim
244 words
Apparatus for controlling and indicating the operating state of a vehicular device comprising: means for generating a series of time-spaced clock pulses that define counting states which occur in cycles; means for generating a first series of control pulses, each of said pulses occurring during a predetermined one of said counting states in each cycle; means for transmitting said first series of control pulses over a transmission path; means for detecting the presence of said first series of control pulses; means for generating a first output signal in response to said detected first series of control pulses, said means for generating a first output signal comprising a counter; means for operating said vehicular device in response to said first output signal; means for generating an indicating signal in response to the operating characteristics of said operated vehicular device; means comprising said counter for generating a second series of control pulses in response to said indicating signal, each of said second series of control pulses occurring during a counting state in which no pulse in the first series is present; means for transmitting said second series of control pulses over said transmission path; means for detecting the presence of said second series of control pulses; means for generating a second output signal in response to said detected second series of control pulses; and means for indicating the operating condition of said operated vehicular device at a remote location in response to said second output signal.
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |