US4646342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test trunk access controller
Assignee: Alcatel Lucent NV
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Filing: 1985-09-11
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Granted: 1987-02-24
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Expires: 2005-09-11
Abstract
Abstract A test trunk access controller includes a test trunk interface controller accessed by a subscriber line assigned to a service provider, or other remote metering facility, and a test trunk interface device inter-connecting the test trunk controller with the test trunk device of a local telephone switch.
Inventors
- 👤 Franklin Hargrave
- 👤 David A. Zeller, Jr.
- 👤 Mark G. Smith
- 👤 William L. Hull, III
- 👤 Francisco A. Middleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:48
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/22; H04M3/26; H04M3/28
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
101 words
A test trunk access controller comprises: means for accessing a first subscriber line via a test trunk device in response to a signal from a second subscriber line said means including a test trunk interface device, said test trunk interface device being connected to said test trunk device via a test trunk line, said test trunk line including tip, ring, sleeve and ground wires; a first modem, said first modem being connected to said second subscriber line; and a test trunk interface controller, said test trunk interface controller being connected to said first modem and to said test trunk interface device.
Claim 2
Dependent Claim
101 words
A test trunk access controller comprises: means for accessing a first subscriber line via a test trunk device in response to a signal from a second subscriber line said means including a test trunk interface device, said test trunk interface device being connected to said test trunk device via a test trunk line, said test trunk line including tip, ring, sleeve and ground wires; a first modem, said first modem being connected to said second subscriber line; and a test trunk interface controller, said test trunk interface controller being connected to said first modem and to said test trunk interface device.
Claim 3
Dependent Claim
30 words
Controller as claimed in claim 1 wherein said test trunk interface device further comprises: means for monitoring the voltage between said tip and ring wires of said test trunk line.
Claim 4
Dependent Claim
16 words
Controller as claimed in claim 2 wherein said voltage monitoring means includes a digital volt meter.
Claim 5
Dependent Claim
31 words
Controller as claimed in claim 2 wherein said test trunk interface device further comprises: means for impressing signals on said tip and ring wires whereby a subscriber location can be called.
Claim 6
Dependent Claim
28 words
Controller as claimed in claim 1 further comprising: a second modem, said second modem being connected between said test trunk interface device and said test trunk interface controller.
Claim 7
Dependent Claim
24 words
Controller as claimed in claim 5 further comprising: means, responsive to a signal from said second subscriber line, for seizing said test trunk line.
Claim 8
Dependent Claim
38 words
Controller as claimed in claim 6 further comprising: means, responsive to a signal from said test trunk interface controller, for connecting a multifrequency sender to said seized test trunk line whereby said first subscriber line can be accessed.
Claim 9
Dependent Claim
25 words
Controller as claimed in claim 7 further comprising: means for establishing a telephone connection across said first and said second subscriber lines communicating data therebetween.
Claim 10
Dependent Claim
24 words
Controller as claimed in claim 7 further comprising: means, within said test trunk interface device, connecting a source voltage on said first subscriber line.
Claim 11
Dependent Claim
23 words
Controller as claimed in claim 6 further comprising: means for detecting the status of a subscriber subset connected to said first subscriber line.
References Cited (Backward Citations)
US3899639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-23 | 1990-08-25 | 1991-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-23 | 1994-08-25 | 1995-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-23 | 1998-08-25 | 1999-02-24 | $7700.00 | Window Closed / Lapsed |