Patent US3810099A successfully refreshed from Google Patents.
US3810099A
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Means for providing a vehicle control signal containing direction and speed information
Assignee: Bombardier Transportation Holdings USA Inc
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Filing: 1972-10-26
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Granted: 1974-05-07
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Expires: 1992-10-26
Abstract
Abstract A vehicle control system, such as a rubber tired system in which a speed and direction signal is transmitted to a vehicle operational in the system. The speed and direction signal is binary coded and frequency modulated such that the respective frequencies of the binary ONES and ZEROS determine the direction of travel, and the order of the binary ONES and ZEROS determines the speed of the vehicle. If the vehicle is to travel in a forward direction along the vehicle travel path, the binary ONE and ZERO signals are at first and second frequencies respectively, and if the vehicle is to travel in the reverse direction along the vehicle travel path, the binary ONE and ZERO signals are at third and fourth frequencies respectively.
Inventors
- 👤 D Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:21
CPC Classifications
B; B61; B61L; B61L3/00; B61L3/02; B61L3/08; B61L3/12; B61L3/125
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
231 words
In a system for controlling the speed and direction of travel of a vehicle over a vehicle travel path, the combination comprising: means for providing a carrier signal having a first frequency if the direction of travel for said vehicle is to be in a forward direction, and having a second frequency if the direction of travel for said vehicle is to be in a reverse direction; means for providing a plurality of binary coded speed signals indicative of the different speeds at which said vehicle may travel over said vehicle travel path; means for selecting a given one of said plurality of binary coded speed signals as the desired speed signal for said vehicle; and means for providing a binary coded vehicle control signal for controlling the movement of said vehicle in response to the provision of said carrier signal and the selection of said given one of said plurality of binary coded speed signals, said vehicle control signal being coded such that the binary ONES and ZEROS are in the same order as the order of the binary ONES and ZEROS of said given one of said plurality of binary coded speed signals and are at third and fourth frequencies, respectively in response to said carrier signal having said first frequency, and are at fifth and sixth frequencies, respectively in response to said carrier signal having said second frequency.
Claim 2
Dependent Claim
231 words
In a system for controlling the speed and direction of travel of a vehicle over a vehicle travel path, the combination comprising: means for providing a carrier signal having a first frequency if the direction of travel for said vehicle is to be in a forward direction, and having a second frequency if the direction of travel for said vehicle is to be in a reverse direction; means for providing a plurality of binary coded speed signals indicative of the different speeds at which said vehicle may travel over said vehicle travel path; means for selecting a given one of said plurality of binary coded speed signals as the desired speed signal for said vehicle; and means for providing a binary coded vehicle control signal for controlling the movement of said vehicle in response to the provision of said carrier signal and the selection of said given one of said plurality of binary coded speed signals, said vehicle control signal being coded such that the binary ONES and ZEROS are in the same order as the order of the binary ONES and ZEROS of said given one of said plurality of binary coded speed signals and are at third and fourth frequencies, respectively in response to said carrier signal having said first frequency, and are at fifth and sixth frequencies, respectively in response to said carrier signal having said second frequency.
Claim 3
Independent Claim
225 words
A method of controlling the speed and direction of travel of a vehicle over a vehicle travel path, said method comprising the steps of: providing a direction signal having a first frequency if the direction of travel for saId vehicle is to be in a forward direction, and having a second frequency if the direction of travel for said vehicle is to be in a reverse direction; providing a plurality of binary coded speed signals indicative of the different speeds at which said vehicle may travel over said vehicle travel path; selecting a given one of said plurality of binary coded speed signals as the desired speed signal for said vehicle; and providing a binary coded vehicle control signal for controlling the movement of said vehicle in response to the provision of said carrier signal and the selection of said given one of said plurality of binary coded speed signals, said vehicle control signal being coded such that the binary ONES and ZEROS are in the same order as the order of the binary ONES and ZEROS of said given one of said plurality of binary coded speed signals and are at third and fourth frequencies, respectively in response to said direction signal having said first frequency, and are at fifth and sixth frequencies, respectively in response to said direction signal having said second frequency.
Claim 4
Independent Claim
225 words
A method of controlling the speed and direction of travel of a vehicle over a vehicle travel path, said method comprising the steps of: providing a direction signal having a first frequency if the direction of travel for saId vehicle is to be in a forward direction, and having a second frequency if the direction of travel for said vehicle is to be in a reverse direction; providing a plurality of binary coded speed signals indicative of the different speeds at which said vehicle may travel over said vehicle travel path; selecting a given one of said plurality of binary coded speed signals as the desired speed signal for said vehicle; and providing a binary coded vehicle control signal for controlling the movement of said vehicle in response to the provision of said carrier signal and the selection of said given one of said plurality of binary coded speed signals, said vehicle control signal being coded such that the binary ONES and ZEROS are in the same order as the order of the binary ONES and ZEROS of said given one of said plurality of binary coded speed signals and are at third and fourth frequencies, respectively in response to said direction signal having said first frequency, and are at fifth and sixth frequencies, respectively in response to said direction signal having said second frequency.
Claim 5
Dependent Claim
236 words
In a system for controlling the speed and direction of travel of a vehicle over a vehicle travel path, the combination comprising: means for providing a first carrier signal; means for providing a second carrier signal; means for selecting said first carrier signal if said vehicle is to travel in one direction, and for selecting said second carrier signal if said vehicle is to travel in the opposite direction; means for providing a plurality of binary coded speed signals indicative of the different speeds at which said vehicle may travel over said vehicle travel path; means for selecting a given one of said plurality of binary coded speed signals as the desired speed signal for said vehicle; means for providing a frequency and binary coded direction and speed signal for controlling the movement of said vehicle in response to the provision of the selected carrier signal and the selection of said given one of said plurality of vehicle control signals, said direction and speed signal being coded such that the order of the binary ONES and ZEROS are in the same order as the binary ONES and ZEROS in said given one of said plurality of binary coded speed signals and are at first and second frequencies respectively in response to the selection of said first carrier signal, and are at third and fourth frequencies respectively in response to the selection of said second carrier signal.
Claim 6
Dependent Claim
236 words
In a system for controlling the speed and direction of travel of a vehicle over a vehicle travel path, the combination comprising: means for providing a first carrier signal; means for providing a second carrier signal; means for selecting said first carrier signal if said vehicle is to travel in one direction, and for selecting said second carrier signal if said vehicle is to travel in the opposite direction; means for providing a plurality of binary coded speed signals indicative of the different speeds at which said vehicle may travel over said vehicle travel path; means for selecting a given one of said plurality of binary coded speed signals as the desired speed signal for said vehicle; means for providing a frequency and binary coded direction and speed signal for controlling the movement of said vehicle in response to the provision of the selected carrier signal and the selection of said given one of said plurality of vehicle control signals, said direction and speed signal being coded such that the order of the binary ONES and ZEROS are in the same order as the binary ONES and ZEROS in said given one of said plurality of binary coded speed signals and are at first and second frequencies respectively in response to the selection of said first carrier signal, and are at third and fourth frequencies respectively in response to the selection of said second carrier signal.
Claim 7
Dependent Claim
25 words
The combination claimed in claim 3 wherein the means for selecting said first carrier signal and said second carrier signal comprises an exclusive OR gate.
Claim 8
Dependent Claim
23 words
The combination claimed in claim 4 wherein said means for providing a frequency and binary coded direction and speed signal comprises a modulator.
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) | 1977-05-06 | 1977-11-05 | 1978-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-06 | 1981-11-05 | 1982-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-06 | 1985-11-05 | 1986-05-07 | $7700.00 | Window Closed / Lapsed |