Patent US3582894A successfully refreshed from Google Patents.
US3582894A
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US
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Coded signal transmission system
Assignee: Westinghouse Electric Corp
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Filing: 1968-05-20
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Granted: 1971-06-01
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Expires: 1988-05-20
Abstract
Abstract Coded signal transmission equipment is disclosed wherein a preselected train destination signal comprising a six-bit code signal coded to correspond to anyone out of 0 to 49 and/or a preselected train length signal comprising a six-bit code signal coded to correspond to anyone out of 50 to 59 are sent between a train vehicle and a selected wayside location. These numbers are the result of the particular coding technique employed. In general it is desired to send two coded signals and to separate those signals within the signal receiving equipment in a fail safe manner. For this purpose there is provided a wayside located signal receiving equipment which includes a signal register in which both the destination signal and the length signal are serially stored and shifted by a suitable shift control signal. A predetermined logic circuit arrangement is operative with a selected portion of the shift register to sense when a predetermined one of said signals is stored in said portion of the register to indicate that the register at that time is fully loaded and properly oriented. The desired coded signals can then be read out and utilized to indicate the train destination and/or the train length as may be desired. A similar technique is employed to transmit coded vehicle performance signals back to the train vehicle.
Inventors
- 👤 Robert C Hoyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:55
CPC Classifications
B; B61; B61L; B61L25/00; B61L25/02; B61L25/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
148 words
In a signal transmission system including first equipment for transmitting a predetermined signal comprising a plurality of binary bits, and second equipment for receiving said signal, the combination of: first signal storage means associated with said first equipment for storing said signal before said first equipment transmits said signal; second signal storage means associated with said second equipment for storing said signal after the signal has been transmitted and is received; signal coupling means operative for at least a predetermined time interval to couple said signal for transmission from said first equipment to said second equipment; and signal responsive means operative with one of said signal storage means for responding to a storage of at least a given number of said plurality of binary bits in a predetermined location within said one signal storage means to control the time interval during which said signal coupling means is operative.
Claim 2
Dependent Claim
148 words
In a signal transmission system including first equipment for transmitting a predetermined signal comprising a plurality of binary bits, and second equipment for receiving said signal, the combination of: first signal storage means associated with said first equipment for storing said signal before said first equipment transmits said signal; second signal storage means associated with said second equipment for storing said signal after the signal has been transmitted and is received; signal coupling means operative for at least a predetermined time interval to couple said signal for transmission from said first equipment to said second equipment; and signal responsive means operative with one of said signal storage means for responding to a storage of at least a given number of said plurality of binary bits in a predetermined location within said one signal storage means to control the time interval during which said signal coupling means is operative.
Claim 3
Dependent Claim
67 words
The signal transmission sysTem of claim 1, with said signal including a first portion and a second portion, said second portion being numerically different than said first portion, and with said given number of said plurality of binary bits being located in said second portion of said signal for determining the location within said one signal storage means where said given number of binary bits are stored.
Claim 4
Dependent Claim
90 words
The signal transmission system of claim 1, with said signal including at least one multiple bit word of information, and control means for sensing the rate of bit transmission by said system, said one signal storage means comprising a shift register for storing at least one word of information and being operative with said control means for shifting the bits of said one word through said shift register, and said signal coupling means being operative to receive serially the so shifted bits of said one word from said shift register.
Claim 5
Dependent Claim
165 words
In a coded signal transmission system operative with at least one predetermined signal having a plurality of bits, the combination of: first signal means for storing said coded signal and including a first shift register into which said coded signal is fed; signal coupling means for removing said coded signal from said first signal means; second signal means for storing said coded signal and including a second shift register operative with said signal coupling means for receiving said coded signal from said first signal means; control means operative with at least one of said shift registers for circulating said coded signal within at least said one shift register until there occurs a predetermined arrangement of said bits; and means responsive to the predetermined arrangement of said bits within said one shift register and operative with said signal coupling means for transmitting said coded signal from said first signal means to said second signal means during the interval of time said predetermined arrangement of bits occurs.
Claim 6
Dependent Claim
165 words
In a coded signal transmission system operative with at least one predetermined signal having a plurality of bits, the combination of: first signal means for storing said coded signal and including a first shift register into which said coded signal is fed; signal coupling means for removing said coded signal from said first signal means; second signal means for storing said coded signal and including a second shift register operative with said signal coupling means for receiving said coded signal from said first signal means; control means operative with at least one of said shift registers for circulating said coded signal within at least said one shift register until there occurs a predetermined arrangement of said bits; and means responsive to the predetermined arrangement of said bits within said one shift register and operative with said signal coupling means for transmitting said coded signal from said first signal means to said second signal means during the interval of time said predetermined arrangement of bits occurs.
Claim 7
Dependent Claim
55 words
The signal transmission system of claim 4, with said first signal means including a signal register for initially storing a coded signal to be periodically transmitted to said first shift register; and means for shifting said coded signal through said first shift register to said signal coupling means in a serial bit by bit manner.
Claim 8
Dependent Claim
73 words
The signal transmission system of claim 5, including shift signal means providing a bit rate control signal determined by the signal transmission bit rate of said system for shifting the coded signal stored in said second shift register at said bit rate, and signal indication means operative with said second shift register and responsive to said coded signal stored in said second shift register for indicating the completion of said coded signal transmission.
Claim 9
Dependent Claim
179 words
In a signal transmission system including a first station for transmitting a signal comprising a plurality of binary bits and a second station for receiving said signal, the combination comprising: first signal storage means operative with said first station for storing said signal for a first given amount of time before said first station transmits said signal; second signal storage means operative with said second station for storing said signal for a second given amount of time after the signal has been transmitted by said first station and received by said second station; signal coupling means operative during time intervals, which may be different in length of time from one interval to the next, for coupling said signal for transmission from said first station to said second station; and signal responsive means operative with said first signal storage means for responding to a storage of at least a given number of said plurality of binary bits in a predetermined location within said first signal storage means to control the time interval during which said signal coupling means is operative.
Claim 10
Dependent Claim
179 words
In a signal transmission system including a first station for transmitting a signal comprising a plurality of binary bits and a second station for receiving said signal, the combination comprising: first signal storage means operative with said first station for storing said signal for a first given amount of time before said first station transmits said signal; second signal storage means operative with said second station for storing said signal for a second given amount of time after the signal has been transmitted by said first station and received by said second station; signal coupling means operative during time intervals, which may be different in length of time from one interval to the next, for coupling said signal for transmission from said first station to said second station; and signal responsive means operative with said first signal storage means for responding to a storage of at least a given number of said plurality of binary bits in a predetermined location within said first signal storage means to control the time interval during which said signal coupling means is operative.
Claim 11
Dependent Claim
87 words
The signal transmission system of claim 7, with saiD first signal storage means comprising: a first shift register which receives at least a portion of said signal to be transmitted; a second shift register connected in series with said first shift register such that said signal may be recirculated through said first and second registers; and a third shift register connected to said first shift register to receive the signal stored in said first shift register, said third shift register being connected to said signal coupling means.
Claim 12
Dependent Claim
146 words
The combination claimed in claim 8, with said signal responsive means comprising: at least one gate having a plurality of input terminals and an output terminal, said plurality of input terminals being connected in a predetermined arrangement to said second shift register for producing a set pulse at said output terminal in response to the storage of at least said given number of said plurality of binary bits in said predetermined location in said second shift register; A flip-flop having a set terminal and an output terminal, said set terminal being connected to the output terminal of said one gate for receiving said set pulse and producing in response thereto a shift signal at said output terminal of said flip-flop; and means for applying said shift signal to said third shift register for transmitting said signal from said third shift register to said signal coupling means.
Claim 13
Dependent Claim
42 words
The combination claimed in claim 9, with said second signal storage means comprising: a fourth shift register connected to said signal coupling means for receiving and storing said signal; and means responsive to the storing of said signal for displaying said 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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |