US3590380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repeater station for information signals containing pseudo-random auxiliary signals
Assignee: US Philips Corp
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Filing: 1969-02-19
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Granted: 1971-06-29
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Expires: 1989-02-19
Abstract
Abstract A repeater station for a composite pulse information signal and a pseudo-random auxiliary signal has a local pseudo-random generator synchronized with the received auxiliary signal. The output of the local generator is combined with the proper amplitude with the output of a pulse regenerator to yield a regenerated output signal.
Inventors
- 👤 Leo Eduard Zegers
- 👤 Wilfred Andre Maria Snijders
- 👤 Jan Kuilman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:28
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; H04J3/06; H04J3/0602; H04J3/0605; H04J3/0611; H04B; H04B14/00; H04B14/02; H04B14/06; H04B14/062
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
122 words
A repeater for a composite signal having a main signal component and a pseudo-random auxiliary signal component of an amplitude substantially below that of said main signal, said repeater comprising an input means for receiving said composite signal from a single transmission line, an output means for supplying a regenerated composite signal, a pulse regenerator coupled to said input means, an adder coupled to said regenerator and said output means, a clock pulse source coupled to said regenerator, means for generating a pseudorandom signal coupled to said clock pulse source and said adder means, and means for synchronizing said generating means with said auxiliary signal component said synchronizing means coupled to said input means, said generating means and said clock pulse source.
Claim 2
Dependent Claim
122 words
A repeater for a composite signal having a main signal component and a pseudo-random auxiliary signal component of an amplitude substantially below that of said main signal, said repeater comprising an input means for receiving said composite signal from a single transmission line, an output means for supplying a regenerated composite signal, a pulse regenerator coupled to said input means, an adder coupled to said regenerator and said output means, a clock pulse source coupled to said regenerator, means for generating a pseudorandom signal coupled to said clock pulse source and said adder means, and means for synchronizing said generating means with said auxiliary signal component said synchronizing means coupled to said input means, said generating means and said clock pulse source.
Claim 3
Dependent Claim
17 words
A repeater as claimed in claim 1 wherein said input and output means, each comprises a transformer.
Claim 4
Dependent Claim
65 words
A repeater as claimed in claim 1 wherein said generating means comprises a feedback shift register shifted by said clock pulse source and further comprising a counter coupled to said clock pulse source, means for deriving a group synchronization signal from said shift register coupled to said counter to reset said counter, a selection gate having inputs coupled to said regenerator and said counter respectively.
Claim 5
Dependent Claim
34 words
A repeater as claimed in claim 3 wherein said deriving means comprises an AND gate having a plurality of inputs coupled to the shift register elements respectively and an output coupled to said counter.
Claim 6
Dependent Claim
49 words
A repeater as claimed in claim 3 further comprising an AND gate having inputs coupled to said counter and said regenerator respectively and an output, and a memory element having An input coupled to said AND gate output and an output coupled to an input of said selection gate.
Claim 7
Dependent Claim
55 words
A repeater as claimed in claim 1 wherein said synchronization means comprises a product modulator having inputs coupled to said input means and the output of said generating means respectively and an output, a filter coupled to said product modulator output, and a frequency determining member coupled to said filter and said clock pulse source.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |