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US3818449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communications processor system having time shared control devices and dialers
Assignee: Action Communication Systems Inc
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Filing: 1973-03-28
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Granted: 1974-06-18
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Expires: 1993-03-28
Abstract
Abstract A communications processor system wherein a message-switching digital computer controls the transmission of digital data between terminals connected along at least one communications line. One embodiment of the invention includes a plurality of communication control devices connected to the computer for transmitting digital messages output from the computer, each of the control devices having different operational characteristics. A switch is operable to selectively connect the output of any one of the control devices to a single communications line, such that the benefit of the operational characteristics of any of the communications control devices may be selectively obtained. A single dialer is used to provide dialing signals for all of the control devices. In another embodiment of the invention, a plurality of communication control devices are connected through modems and interfacing devices to a plurality of communications lines. A single dialer may be selectively switched through any of the interfacing devices, such that the dialer is time shared between the various communications control devices.
Inventors
- 👤 B Epstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:31
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
163 words
In a communications processor system wherein a digital computer controls the transmission of digitally coded data to terminals connected to a communications line, the combination comprising: a plurality of communications control ports connected to the output of said computer for receiving parallel digital data and for generating serial digital data, each of said control ports having different operating characteristics, modem means connected to the output of each of said control ports for converting said digital signals into tone signals, a dialer for generating a sequence of dialing signals under the control of said computer, an interfacing circuit for directing said dialing signals to a communications line, and means operable by said computer for selectively switching the outputs of any one of said modem means to said interfacing circuit, wherein said tone signals from any selected one of said modem means may be directed to the communications line in order to selectively transmit digital data having various desired characteristics over the single communications line.
Claim 2
Dependent Claim
163 words
In a communications processor system wherein a digital computer controls the transmission of digitally coded data to terminals connected to a communications line, the combination comprising: a plurality of communications control ports connected to the output of said computer for receiving parallel digital data and for generating serial digital data, each of said control ports having different operating characteristics, modem means connected to the output of each of said control ports for converting said digital signals into tone signals, a dialer for generating a sequence of dialing signals under the control of said computer, an interfacing circuit for directing said dialing signals to a communications line, and means operable by said computer for selectively switching the outputs of any one of said modem means to said interfacing circuit, wherein said tone signals from any selected one of said modem means may be directed to the communications line in order to selectively transmit digital data having various desired characteristics over the single communications line.
Claim 3
Dependent Claim
33 words
The communications processor system of claim 1 wherein at least one of said control ports operates in an asynchronous mode and at least one of said control ports operates in a synchronous mode.
Claim 4
Dependent Claim
18 words
The communications processor system of claim 1 wherein each of said control ports operates at a different speed.
Claim 5
Dependent Claim
20 words
The communications processor system of claim 1 wherein at least one of said control ports comprises a binary synchronous device.
Claim 6
Dependent Claim
27 words
The communications processor system of claim 1 and further comprising: termination oscillator means for being connected to ones of said modem means not connected to said dialer.
Claim 7
Dependent Claim
62 words
The communications processor system of claim 1 and further comprising: a plurality of relays connected to the outputs of said modem means and commonly connected to the input of said interfacing circuit, address decoder means responsive to said computer for selectively energizing any one of said relays in order to connect a selected modem means to the input of said interfacing circuit.
Claim 8
Dependent Claim
133 words
In a communications processor system wherein a digital computer controls the transmission of digitally coded data to terminals connected to communications lines, the combination comprising: a plurality of communications control ports connected to the output of said computer for receiving parallel digital data and for generating serial output data, modems connected to the output of each of said control ports for converting said serial output data into tone signals, a plurality of interfacing means for Directing said tone signals to the communications lines, a dialer for generating a sequence of dialing pulses under the control of said computer, and switch means responsive to said computer for selectively switching the output of said dialer to different ones of said interfacing means such that said dialer is sequentially shared between said plurality of interfacing means.
Claim 9
Dependent Claim
133 words
In a communications processor system wherein a digital computer controls the transmission of digitally coded data to terminals connected to communications lines, the combination comprising: a plurality of communications control ports connected to the output of said computer for receiving parallel digital data and for generating serial output data, modems connected to the output of each of said control ports for converting said serial output data into tone signals, a plurality of interfacing means for Directing said tone signals to the communications lines, a dialer for generating a sequence of dialing pulses under the control of said computer, and switch means responsive to said computer for selectively switching the output of said dialer to different ones of said interfacing means such that said dialer is sequentially shared between said plurality of interfacing means.
Claim 10
Dependent Claim
20 words
The communications processor system of claim 7 wherein said switch means comprises relays having relay coils energized by said computer.
Claim 11
Dependent Claim
41 words
The communications processor system of claim 8 and further comprising: an address decoder responsive to said computer for selectively energizing said relay coils in order to selectively switch the output of said dialer to a selected one of said interfacing means.
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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |