Patent US3829628A successfully refreshed from Google Patents.
US3829628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trunk circuit number parity checking
Assignee: AG Communication Systems Corp
•
Filing: 1972-12-26
•
Granted: 1974-08-13
•
Expires: 1992-12-26
Abstract
Abstract A test set circuit is disclosed that is arranged to be connected across a trunk circuit of a tributary office for checking the sending of the calling party identity digits and comparing their value with those programmed in the test set. The digit value is displayed while it is being sent and also its sequential position.
Inventors
- 👤 T Tripsas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:40
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/22; H04M3/26; H04M3/28
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
176 words
In a multi-office telephone system including a ticketing office and at least one branch office wherein said branch office includes calling line designation identifying means and means for forwarding said calling line designation identity via interoffice trunks as coded multi-tone signals, an arrangement for testing said means for fowarding said identity comprising: a multi-tone receiver operatively connected to one of said trunks, a first means for partially completing a circuit means to a failure indicating means, a first control means operated from said receiver to further the completion of said circuit means, a program board coding means for storing the calling line designation, a sequencing control means operated upon receipt of a part of said calling line designation from said trunk to complete a second means to said first means, said failure indicating means operably connected to said sequencing control means via said second means, and a third means operated upon coincidence of said program board coding means and responsive to said coded multi-tone signals, and said sequencing control means to disable said failure indicating means.
Claim 2
Dependent Claim
176 words
In a multi-office telephone system including a ticketing office and at least one branch office wherein said branch office includes calling line designation identifying means and means for forwarding said calling line designation identity via interoffice trunks as coded multi-tone signals, an arrangement for testing said means for fowarding said identity comprising: a multi-tone receiver operatively connected to one of said trunks, a first means for partially completing a circuit means to a failure indicating means, a first control means operated from said receiver to further the completion of said circuit means, a program board coding means for storing the calling line designation, a sequencing control means operated upon receipt of a part of said calling line designation from said trunk to complete a second means to said first means, said failure indicating means operably connected to said sequencing control means via said second means, and a third means operated upon coincidence of said program board coding means and responsive to said coded multi-tone signals, and said sequencing control means to disable said failure indicating means.
Claim 3
Dependent Claim
66 words
In a multi-office telephone system as claimed in claim 1 wherein said arrangement includes a digit value field of lights having a light corresponding to each of the values of the calling line designation used, and means including said sequencing control means and said program board coding means operated to light a particular light corresponding to the value of calling line designation that should be received.
Claim 4
Dependent Claim
56 words
In a multi-office system as claimed in claim 2 wherein said arrangement includes fourth means including said digit decoding means operated upon an erroneous part of a calling line designation having been forwarded for lighting a second lamp of said part of a calling line designation value field of lamps to indicate said erroneous digits value.
Claim 5
Dependent Claim
43 words
In a multi-office system as claimed in claim 3 wherein said arrangement includes fifth means including said decoding means and said failure indicating means operated upon an erroneous part of a calling Line designation having been forwarded to disable said sequencing control means
Claim 6
Dependent Claim
53 words
In a multi-office system as claimed in claim 4 wherein said arrangement includes a digit sequence value field of lights having a light corresponding to each part of the calling line designation sequence positions that is used in the calling line designation of said calling line identity operated from said sequence control means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |