Patent US3985664A successfully refreshed from Google Patents.
Patent US3959593A successfully refreshed from Google Patents.
US3959593A
Expired / Lapsed
US
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Traffic analysis from a scanner using a micro-processor
Assignee: AG Communication Systems Corp
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Filing: 1973-04-25
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Granted: 1976-05-25
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Expires: 1993-04-25
Abstract
Abstract A traffic analysis system is disclosed which utilizes a scanner to provide the identity of the trunk group within which a call attempt has occurred. The trunk group identity information from the scanner is supplied to a multiplexer which makes available four, 8-bit words based on the trunk identity information from the scanner. A micro-processor is coupled to the multiplexer and upon the occurrence of a call attempt the micro-processor adds the four words from the multiplexer, the sum of these words yielding the address of the proper storage location in a memory unit for storing the call attempt indication.
Inventors
- 👤 Madhukumar A. Mehta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:54
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/22; H04M3/36
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
143 words
In a telephone system having a plurality of trunks divided into trunk groups and a scanner for providing information on call attempts made on each trunk group, a trunk usage recording system comprising: a multiplexer; means for coupling the output of said scanner to said multiplexer; memory means for storing said call attempt information and system operating instructions; and a processor operatively coupled to said multiplexer and said memory means, said multiplexer receiving N inputs from said scanner and formatting the data received from said scanner into a plurality of data groups each having M outputs, where M is less than N, said processor being responsive to instructions from said memory means to read the output from said multiplexer and upon receipt of a call attempt indication from said multiplexer, converting said call attempt indication into an address for incrementing said memory means.
Claim 2
Dependent Claim
143 words
In a telephone system having a plurality of trunks divided into trunk groups and a scanner for providing information on call attempts made on each trunk group, a trunk usage recording system comprising: a multiplexer; means for coupling the output of said scanner to said multiplexer; memory means for storing said call attempt information and system operating instructions; and a processor operatively coupled to said multiplexer and said memory means, said multiplexer receiving N inputs from said scanner and formatting the data received from said scanner into a plurality of data groups each having M outputs, where M is less than N, said processor being responsive to instructions from said memory means to read the output from said multiplexer and upon receipt of a call attempt indication from said multiplexer, converting said call attempt indication into an address for incrementing said memory means.
Claim 3
Dependent Claim
24 words
The trunk usage recording system as claimed in claim 1 wherein the output of said scanner for trunk identification is in 2-out-of-5 bit code.
Claim 4
Dependent Claim
28 words
The trunk usage recording system as claimed in claim 2 wherein said coupling means includes a code converter for converting said 2-out-of-5 bit code into a hybrid code.
Claim 5
Dependent Claim
18 words
The trunk usage recording system as claimed in claim 1 wherein said coupling means includes a buffer register.
Claim 6
Dependent Claim
16 words
The trunk usage recording system as claimed in claim 2 including a 2-out-of-5 bit code checker.
Claim 7
Dependent Claim
43 words
The trunk usage recording system as claimed in claim 1 including a logic unit coupled between said micro-processor and said multiplexer, said logic unit converting addresses from said micro-processor into addresses to said multiplexer for indicating the output word requested from said multiplexer.
Claim 8
Dependent Claim
18 words
The trunk usage recording system as claimed in claim 1 including an output device coupled to said micro-processor.
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) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |