US3708735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft flight control systems
Assignee: Allard Way Holdings Ltd
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Filing: 1970-09-03
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Granted: 1973-01-02
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Expires: 1990-09-03
Abstract
Abstract In a signal transmission system for use, for example, in an automatic flight control system for an aircraft, signals from air data sensors and other sensing devices are fed over individual transmission lanes to signal consolidation devices such as voters, each of which develops an output signal which is dependent upon the signals on all of the lanes. To avoid feeding to all of the other lanes any spurious signals which may appear on any lane, each voter is connected directly only to its corresponding lane, and is coupled to each of the other lanes through a unidirectional radiation transmission system.
Inventors
- 👤 R Barltrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:27
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/0055; G05D1/0077
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
157 words
A signal transmission system, including a number of signal transmission lanes each arranged to receive electric signals from a corresponding one, respectively, of a plurality of sensing means, a corresponding number of signal consolidation devices having first inputs connected respectively to the corresponding lanes and having further inputs to receive signals from the other lanes, respectively, each said device being operative to develop from the electric signals in the lanes an output which bears a prescribed relationship to the electric signals, unidirectional radiation transmission means coupling each said further input to the respective other lane, the unidirectional radiation transmission means including a plurality of first transducers respectively connected to the lanes and operative to generate said radiation in dependence upon the electric signals in The respective lanes, a corresponding plurality of second transducers operative to convert said radiation to electric signals for application to said further inputs, and radiation conduction means between said first and second transducers.
Claim 2
Dependent Claim
157 words
A signal transmission system, including a number of signal transmission lanes each arranged to receive electric signals from a corresponding one, respectively, of a plurality of sensing means, a corresponding number of signal consolidation devices having first inputs connected respectively to the corresponding lanes and having further inputs to receive signals from the other lanes, respectively, each said device being operative to develop from the electric signals in the lanes an output which bears a prescribed relationship to the electric signals, unidirectional radiation transmission means coupling each said further input to the respective other lane, the unidirectional radiation transmission means including a plurality of first transducers respectively connected to the lanes and operative to generate said radiation in dependence upon the electric signals in The respective lanes, a corresponding plurality of second transducers operative to convert said radiation to electric signals for application to said further inputs, and radiation conduction means between said first and second transducers.
Claim 3
Dependent Claim
28 words
A system as claimed in claim 1, in which said first transducers are operative to convert said electric signals into electromagnetic radiation but cannot effect the reverse conversion.
Claim 4
Dependent Claim
16 words
A system as claimed in claim 2, in which said first transducers are gallium arsenide devices.
Claim 5
Dependent Claim
17 words
A system as claimed in claim 2, in which said first transducers are gallium arsenide phosphide devices.
Claim 6
Dependent Claim
20 words
A system as claimed in claim 1, in which said radiation conduction means comprises a plurality of fiber optical conductors.
Claim 7
Dependent Claim
21 words
A system as claimed in claim 1, in which said sensing means are arranged to sense operating conditions of an aircraft.
Claim 8
Dependent Claim
28 words
A system as claimed in claim 6, in which said outputs from the signal consolidation devices are arranged to control the operation of elevating means for the aircraft.
Claim 9
Dependent Claim
15 words
A system as claimed in claim 1, in which the signal consolidation devices are voters.
Claim 10
Dependent Claim
36 words
A system as claimed in claim 8, in which the output from each voter is dependent, at all instants, upon that electric signal which has a prescribed relationship to the electric signals in the other lanes.
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |