US3770893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cama/lama transverter
Assignee: U S Holding Co Inc
•
Filing: 1972-05-08
•
Granted: 1973-11-06
•
Expires: 1992-05-08
Abstract
Abstract A system is disclosed for automatically gathering, recording and ticketing billing data for station-to-station telephone calls. The system employs electronic logic circuits which are responsive to signals identifying the calling party and the called party and indicating the status of a call to generate billing data for a finished call in the form of initial entry signals answer/disconnect signals and time signals. The billing data is supplied to a core memory where it is stored. The core memory empties into a tape memory periodically after the recorded data has been checked for accuracy.
Inventors
- 👤 H Conerly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:23
CPC Classifications
H; H04; H04M; H04M15/00; H04M15/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
112 words
A system of use with a telephone switching network for gathering, recording and ticketing billing data for automatic telephone toll centers, in which a format control circuit comprises scanner control means for receiving initial entry signals indicating a demand for service over toll lines, data input means for receiving data signals indicating calling and called party numbers, scanner means coupled to be controlled by said scanner control means responsive to said initial entry signals, said scanner means scanning said data input means to provide information signals and control signals, and logic means for applying selected information signals and selected control signals to a core memory control for recording in a core memory.
Claim 2
Independent Claim
112 words
A system of use with a telephone switching network for gathering, recording and ticketing billing data for automatic telephone toll centers, in which a format control circuit comprises scanner control means for receiving initial entry signals indicating a demand for service over toll lines, data input means for receiving data signals indicating calling and called party numbers, scanner means coupled to be controlled by said scanner control means responsive to said initial entry signals, said scanner means scanning said data input means to provide information signals and control signals, and logic means for applying selected information signals and selected control signals to a core memory control for recording in a core memory.
Claim 3
Dependent Claim
56 words
A system as claimed in claim 1, in which said scanner control means includes means responsive to said initial entry signals to generate first control signals for memory means and second control signals for said scanner, and said scanner means includes responsive to said second control signals to provide additional control signals for the memory means.
Claim 4
Dependent Claim
56 words
A system as claimed in claim 1, in which said scanner control means includes means responsive to said initial entry signals to generate first control signals for memory means and second control signals for said scanner, and said scanner control means includes means responsive to signals from the memory means to modify said second control signals.
Claim 5
Dependent Claim
62 words
A system as claimed in claim 1, in which said scanner control means includes means responsive to said initial entry signals to generate first control signals for memory means and second control signals for said scanner, and said scanner control means includes means responsive to signals from said scanner means to regulate said scanner control and reset it to a neutral state.
Claim 6
Dependent Claim
49 words
A system as claimed in claim 1, in which said scanner control means comprises: logic means responsive to said initial entry signals to initiate a sequence of scanning pulses, and means coupling said scanning pulses to said scanner means to enable the scanner means to scan said data signals.
Claim 7
Dependent Claim
62 words
a system as claimed in claim 1, in which said scanner means comprises a chain of flip-flop circuits responsive to signals from said scanner control for controlling a plurality of gate circuits to provide scanning signals to said data input means, and a plurality of additional gate circuits responsive to entry type signals from said scanner control to provide additional scanning signals.
Claim 8
Dependent Claim
36 words
A system as claimed in claim 1, in which said data input means includes interface means for interconnecting an electrically noisy electromechanical system and an electronic system where the data is derived from the electromechanical system.
Claim 9
Dependent Claim
66 words
A system as claimed in claim 1, in which said data input means includes a plurality of interface means for interconnecting an electrically noisy electromechanical system and an electronic system, and said interface means includes relay means and a gate circuit, said relay means responding to signals from an electromechanical system to provide an operate signal through an electrostatically shielded relay contact to said gate circuit.
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |