Patent US2602293A successfully refreshed from Google Patents.
Patent US5065422A successfully refreshed from Google Patents.
US5065422A
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Subscriber call simulator capable of testing new services of a telephone switching system
Assignee: NEC Corp
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Filing: 1990-12-10
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Granted: 1991-11-12
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Expires: 2010-12-10
Abstract
Abstract Connected to a telephone switching system through subscriber lines, a subscriber call simulator acts as a plurality of pseudo-subscriber's telephone sets. An input/output section inputs control procedure information for the pseudo-subscriber's telephone sets. Connected to the input/output section, a memorizing arrangement memorizes the control procedure information as stored information. By using the stored information, a control circuit controls the pseudo-subscriber's telephone sets. The control procedure information comprises a control procedure program and correspondence information stored in a procedure program memory and a correspondence information memory, respectively, both of which act as the memorizing arrangement.
Inventors
- 👤 Mitsuru Ishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:14
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/22; H04M3/26; H04M3/28; H04M3/32; H04M3/323
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
78 words
A subscriber call simulator connected through subscriber lines to a telephone switching system, said subscriber call simulator acting as pseudo-subscriber's telephone sets, wherein the improvement comprises: inputting means for inputting control procedure information for said pseudo-subscriber's telephone sets; memorizing means connected to said inputting means for memorizing said control procedure information as stored information; and controlling means connected to said memorizing means and said pseudo-subscriber's telephone sets for controlling said pseudo-subscriber's telephone sets by using said stored information.
Claim 2
Dependent Claim
78 words
A subscriber call simulator connected through subscriber lines to a telephone switching system, said subscriber call simulator acting as pseudo-subscriber's telephone sets, wherein the improvement comprises: inputting means for inputting control procedure information for said pseudo-subscriber's telephone sets; memorizing means connected to said inputting means for memorizing said control procedure information as stored information; and controlling means connected to said memorizing means and said pseudo-subscriber's telephone sets for controlling said pseudo-subscriber's telephone sets by using said stored information.
Claim 3
Dependent Claim
144 words
A subscriber call simulator connected to a telephone switching system through subscriber lines assigned with line numbers, said subscriber call simulator acting as pseudo-subscriber's telephone sets assigned with telephone numbers, wherein the improvement inputting means for inputting a control procedure program for said pseudo-subscriber's telephone sets and correspondence information which makes said pseudo-subscriber's telephone sets correspond to said line numbers and said telephone numbers; procedure program memorizing means connected to said inputting means for memorizing said control procedure program; correspondence information memorizing means connected to said inputting means for memorizing said correspondence information; and controlling means connected to said procedure program memorizing means, to said correspondence information memorizing means, and to said pseudo-subscriber's telephone sets for controlling said pseudo-subscriber's telephone sets by using the control procedure program and the correspondence information stored in said procedure program memorizing means and said correspondence information memorizing means.
Claim 4
Dependent Claim
144 words
A subscriber call simulator connected to a telephone switching system through subscriber lines assigned with line numbers, said subscriber call simulator acting as pseudo-subscriber's telephone sets assigned with telephone numbers, wherein the improvement inputting means for inputting a control procedure program for said pseudo-subscriber's telephone sets and correspondence information which makes said pseudo-subscriber's telephone sets correspond to said line numbers and said telephone numbers; procedure program memorizing means connected to said inputting means for memorizing said control procedure program; correspondence information memorizing means connected to said inputting means for memorizing said correspondence information; and controlling means connected to said procedure program memorizing means, to said correspondence information memorizing means, and to said pseudo-subscriber's telephone sets for controlling said pseudo-subscriber's telephone sets by using the control procedure program and the correspondence information stored in said procedure program memorizing means and said correspondence information memorizing means.
Claim 5
Dependent Claim
20 words
A subscriber call simulator as claimed in claim 2, wherein said control procedure program is described by predefined character codes.
References Cited (Backward Citations)
US4021624A
Cited
US4937850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-11-11 | 1995-05-13 | 1995-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-11 | 1999-05-13 | 1999-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-11 | 2003-05-13 | 2003-11-12 | $7700.00 | Window Closed / Lapsed |