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US3862374A
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Calling station identifier-sender
Assignee: ANTEL CORP
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Filing: 1974-01-21
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Granted: 1975-01-21
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Expires: 1994-01-21
Abstract
Abstract An identifier-sender for the incorporation of Automatic Number Identification (ANI) in a telephone or other communication system, including a transmitter, comprising an encoding matrix, capable of simultaneously generating a plurality of sets of calling-station identification signals in response to actuating signals received over conductors constituting parts of the data transmission and control paths of the system, and an interrupter for opening the involved data paths during operation of the transmitter; the sets of identification signals are developed in a clock-controlled fixed time sequence.
Inventors
- 👤 Harry G Evers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:18
CPC Classifications
H; H04; H04Q; H04Q3/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
169 words
In a telephone system or like communication system of the kind comprising a plurality of calling stations each connectable to a plurality of called stations through a series of trunk circuits each including a data path and a control path, a combined calling number identifier and sender capable of simultaneous identification of a multiplicity of calling station numbers and able to send the identity of those numbers out over a plurality of trunk making concurrent requests, the identifiersender comprising: signal-actuated identity transmitting means for transmitting the identity of a calling station, as a sequence of signals, through a first switched conductor incorporated in a path from a line circuit to an outgoing trunk extending to a called station; actuating means for applying an actuating signal from the trunk to the transmitting means, over a switched conductor, requesting identification of the calling number; and interrupter means for effectively disconnecting the data path between the calling station and the transmitting means, to preclude data transmission during operation of the transmitting means.
Claim 2
Dependent Claim
169 words
In a telephone system or like communication system of the kind comprising a plurality of calling stations each connectable to a plurality of called stations through a series of trunk circuits each including a data path and a control path, a combined calling number identifier and sender capable of simultaneous identification of a multiplicity of calling station numbers and able to send the identity of those numbers out over a plurality of trunk making concurrent requests, the identifiersender comprising: signal-actuated identity transmitting means for transmitting the identity of a calling station, as a sequence of signals, through a first switched conductor incorporated in a path from a line circuit to an outgoing trunk extending to a called station; actuating means for applying an actuating signal from the trunk to the transmitting means, over a switched conductor, requesting identification of the calling number; and interrupter means for effectively disconnecting the data path between the calling station and the transmitting means, to preclude data transmission during operation of the transmitting means.
Claim 3
Dependent Claim
62 words
A calling station identifier-sender for a communication system, as set forth in claim 1, in which the transmitting means includes a plurality of identification signal sources, an encoding matrix coupled to the identification signal sources, and sequencing means for connecting the first switched conductor through the encoding matrix to selected ones of the signal sources, in predetermined sequence, in each transmission operation.
Claim 4
Dependent Claim
52 words
A calling station identifier-sender for a communication system, as set forth in claim 2, in which each calling station line circuit is connected to the encoding matrix through identification switching means individual to that circuit, and in which the sequencing means is actuated in a fixed time sequence for each transmission operation.
Claim 5
Dependent Claim
44 words
A calling station identifier-sender for a communication system, as set forth in claim 3, in which the first switched conductor constitutes a part of the control path of a trunk circuit, and in which the same switched conductor is utilized for the actuating signal.
Claim 6
Dependent Claim
53 words
A calling station identifier-sender for a communication system, as set forth in claim 3, in which the first switch conductor constitutes a part of the data path of a trunk circuit, and in which the switched conductor utilized for the actuating signal is a part of the control path of the trunk circuit.
Claim 7
Dependent Claim
45 words
A calling station identifier-sender for a communication system, as set forth in claim 3, in which the identity of a calling station on a party line is determined by separate switched conductors in the trunk circuit extended from the line circuit for that calling station.
Claim 8
Dependent Claim
43 words
A calling station identifier-sender for a communication system, as set forth in claim 3, in which the identification switching means comprises a voltage-sensitive switching device isolating the encoding matrix from the first switched conductor until a high voltage is applied to that conductor.
Claim 9
Dependent Claim
26 words
A calling station ideNtifier-sender for a communication system, as set forth in claim 7, in which the switching device is a cold cathode gas discharge tube.
Claim 10
Dependent Claim
36 words
A calling station identifier-sender for a communication system, as set forth in claim 1, in which the transmitting means includes an isolating transformer, coupled to the first conductor, for applying the sequence of identifying signals thereto.
References Cited (Backward Citations)
US3787632A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |