US3681534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit arrangement for supervising the input information of a translator in telecommunication systems and particularly telephone systems
Assignee: International Standard Electric Corp
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Filing: 1970-03-10
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Granted: 1972-08-01
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Expires: 1990-03-10
Abstract
Abstract A translator in a telecommunication system is equipped with input checking means. A supervisory switching means used to check the input to the translator employs a connection to a testing set and in case of trouble, stores any faulty code signals.
Inventors
- 👤 Theodor Burian
- 👤 Bernhard Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:05
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
152 words
A circuit arrangement for supervising input information to a translator comprising, information receiving means including switching means, supervisory means including switching means available to be connected in parallel with said information receiving means via coupling means, a code checking circuit coupled to said supervisory means via which a code check of signals received by said supervisory means is effected, test means including switching means forming part of a testing set, said test means operating in response to the appearance of a faulty code signal in said code checking circuit, means recording a faulty code signal via said test means and said supervisory means, means for disconnecting said coupling means from between the information receiving means and the supervisory means to prepare them for checking, means to preset said supervisory means directly via setting contacts, and a holding circuit associated with said supervisory means to maintain the supervisory means in an operated condition.
Claim 2
Dependent Claim
152 words
A circuit arrangement for supervising input information to a translator comprising, information receiving means including switching means, supervisory means including switching means available to be connected in parallel with said information receiving means via coupling means, a code checking circuit coupled to said supervisory means via which a code check of signals received by said supervisory means is effected, test means including switching means forming part of a testing set, said test means operating in response to the appearance of a faulty code signal in said code checking circuit, means recording a faulty code signal via said test means and said supervisory means, means for disconnecting said coupling means from between the information receiving means and the supervisory means to prepare them for checking, means to preset said supervisory means directly via setting contacts, and a holding circuit associated with said supervisory means to maintain the supervisory means in an operated condition.
Claim 3
Dependent Claim
30 words
Circuit arrangement according to claim 1 in which the test switching means of the testing set is connected with the code checking device of the translator via a storage key.
Claim 4
Dependent Claim
41 words
A circuit arrangement according to claim 1, in which the test means includes relay switching means having a holding circuit, said test means interrupting the operating circuit for the coupling means and closing the holding circuit for all supervisory switching means.
Claim 5
Dependent Claim
26 words
A circuit arrangement according to claim 3, in which an erase key is provided for the interruption of the holding circuit of the test switching means.
Claim 6
Dependent Claim
33 words
A circuit arrangement according to claim 1, in which a starting key is provided which interrupts the operating circuit for the coupling means and closes the holding circuits for all supervisory switching means.
Claim 7
Dependent Claim
32 words
A circuit arrangement according to claim 5, in which individual indicator lamps are coupled to be illuminated over contacts of the starting key and the holding circuits for the supervisory switching means.
Claim 8
Dependent Claim
32 words
A circuit arrangement according to claim 6, in which the indicator lamp is decoupled from the associated supervisory switching means and the selecting line coming from the testing set by a diode.
Claim 9
Dependent Claim
40 words
A circuit arrangement according to claim 1 in which for the initiation of the check a test key is provided which energizes a switching means which closes an operating circuit for the coupling means when the starting key is operated.
References Cited (Backward Citations)
US3059067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |