US3889062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for coupling remote data terminals via telephone lines
Assignee: Action Communication Systems Inc
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Filing: 1972-10-02
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Granted: 1975-06-10
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Expires: 1992-10-02
Abstract
Abstract The specification discloses a digital computer having an inputoutput terminal such as a teleprinter. Input apparatus on the teleprinter, such as a keyboard, may be operated to generate electrical digital signals for input to the computer and an output display on the teleprinter displays digital signals output from the computer. First and second switches are connected between the input apparatus and the computer, with a third switch being connected between the computer and the output display. An acoustic coupler includes a pair of spaced apart transducers for receiving the handset of a telephone set to enable coupling into a conventional telephone line. A first set of terminals is provided to connect the acoustic coupler to the first switch and to the output display and a second set of terminals is provided to connect the coupler to the second and third switches. When the acoustic coupler is connected to the first set of terminals, the coupler is operable to direct digital signals transmitted from a remote data terminal through the telephone lines to the computer and is further operable to direct digital data from the computer through the telephone lines to the remote terminal. Connection of the acoustic coupler to the first set of terminals thus allows the remote data terminal to be utilized by an operator to diagnose problems in the computer or to utilize the computer for operator training and the like. This method of interconnection allows both the operator of the teleprinter and the operator of the remote data terminal to view each other''s data simultaneously, without modification of the computer. When the acoustic coupler is connected to the second set of terminals, the teleprinter is disconnected from the computer and the coupler directs digital signals from the input apparatus of the teleprinter through the telephone lines to a remote computer system and directs digital data from the remote computer system through the telephone lines to operate the output display of the teleprinter.
Inventors
- 👤 Barry M Epstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:07
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/06; H04M11/066
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
141 words
A data station comprising: a data terminal having input apparatus and an output display, a computer system for receiving input signals from said input apparatus and for controlling the operation of said output display, means for coupling said input apparatus and output display through a conventional telephone channel to a remote data terminal, means selectively operable in conjunction with said coupling means for interrupting the connections between said computer system and said input apparatus of said data terminal, means for substituting an alternatE input connection to said computer system to simulate the impedance of said data terminal in an inactive mode to prevent interruption of the operation of said computer system, and means for coupling said disconnected data terminal through a conventional telephone channel to input and receive data to and from a remote computer and to a remote data terminal.
Claim 2
Dependent Claim
141 words
A data station comprising: a data terminal having input apparatus and an output display, a computer system for receiving input signals from said input apparatus and for controlling the operation of said output display, means for coupling said input apparatus and output display through a conventional telephone channel to a remote data terminal, means selectively operable in conjunction with said coupling means for interrupting the connections between said computer system and said input apparatus of said data terminal, means for substituting an alternatE input connection to said computer system to simulate the impedance of said data terminal in an inactive mode to prevent interruption of the operation of said computer system, and means for coupling said disconnected data terminal through a conventional telephone channel to input and receive data to and from a remote computer and to a remote data terminal.
Claim 3
Dependent Claim
224 words
A communication processor station comprising: teleprinting means having input apparatus for generating digital signals and further having an output display, a digital communication processor computer for receiving said digital signals and in response thereto controlling the operation of said output display, first and second switch means connected between said input apparatus and said computer, third switch means connected between said computer and said output display, an acoustic coupler having transducers for receiving the handset of a telephone set, connecting structure having first means for connecting said acoustic coupler to said first switch and to said output display and having second means for connecting said acoustic coupler to said second and third switches, said acoustic coupler when connected through said first means to said first switch and said output display being operable to direct digital signals transmitted from a remote terminal through the telephone lines to said computer and to said output display and further operable to direct digital data from the computer through the telephone lines to the remote terminal, said acoustic coupler when connected through said second means to said second and third switches being operable to direct digital signals from said input apparatus through the telephone lines to a remote station and being further operable to direct digital signals from the remote station through the telephone lines to operate said output display.
Claim 4
Dependent Claim
224 words
A communication processor station comprising: teleprinting means having input apparatus for generating digital signals and further having an output display, a digital communication processor computer for receiving said digital signals and in response thereto controlling the operation of said output display, first and second switch means connected between said input apparatus and said computer, third switch means connected between said computer and said output display, an acoustic coupler having transducers for receiving the handset of a telephone set, connecting structure having first means for connecting said acoustic coupler to said first switch and to said output display and having second means for connecting said acoustic coupler to said second and third switches, said acoustic coupler when connected through said first means to said first switch and said output display being operable to direct digital signals transmitted from a remote terminal through the telephone lines to said computer and to said output display and further operable to direct digital data from the computer through the telephone lines to the remote terminal, said acoustic coupler when connected through said second means to said second and third switches being operable to direct digital signals from said input apparatus through the telephone lines to a remote station and being further operable to direct digital signals from the remote station through the telephone lines to operate said output display.
Claim 5
Dependent Claim
25 words
The data station of claim 2 wherein said first switch comprises a relay operable in response to said digital data transmitted from said remote terminal.
Claim 6
Dependent Claim
289 words
A communications station comprising: a teleprinter having an input keyboard and an output printer, a digital communication processor computer operable to receive digital signals from said keyboard and to operate said output printer, a first relay having a relay coil connected between circuit ground and a first terminal and having a switch element connected between said input keyboard and said computer, a connecting lead interconnecting said computer and said output printer to a second terminal, a second relay having a selectively operable relay coil and including second, third and fourth switch elements, said second switch element connected between said input keyboard and said computer and being operable to disconnect said input keyboard and said computer and to connect said input keyboard to a third terminal, said third switch element connected between said input keyboard and said computer and being operable to disconnect said input keyboard and said computer and to terminate said computer to circuit ground, said fourth switch element connected between said computer and said output printer and operable to disconnect said computer from said output printer and to connect said output printer to a fourth terminal, and an acoustic coupler having a first transducer for transducing digital signals into audio signals and a second transducer for transducing audio signals into digital signals, said acoustic coupler operable to receive the handset of a conventional telephone set and further including input and output terminals operable for being connected to said first and second terminals to enable coupling of said teleprinter and computer to a remote teleprinter, said input and output terminals of said acoustic coupler also being operable for being connected to said third and fourth terminals to enable connection of only said teleprinter to a remote data station.
Claim 7
Dependent Claim
289 words
A communications station comprising: a teleprinter having an input keyboard and an output printer, a digital communication processor computer operable to receive digital signals from said keyboard and to operate said output printer, a first relay having a relay coil connected between circuit ground and a first terminal and having a switch element connected between said input keyboard and said computer, a connecting lead interconnecting said computer and said output printer to a second terminal, a second relay having a selectively operable relay coil and including second, third and fourth switch elements, said second switch element connected between said input keyboard and said computer and being operable to disconnect said input keyboard and said computer and to connect said input keyboard to a third terminal, said third switch element connected between said input keyboard and said computer and being operable to disconnect said input keyboard and said computer and to terminate said computer to circuit ground, said fourth switch element connected between said computer and said output printer and operable to disconnect said computer from said output printer and to connect said output printer to a fourth terminal, and an acoustic coupler having a first transducer for transducing digital signals into audio signals and a second transducer for transducing audio signals into digital signals, said acoustic coupler operable to receive the handset of a conventional telephone set and further including input and output terminals operable for being connected to said first and second terminals to enable coupling of said teleprinter and computer to a remote teleprinter, said input and output terminals of said acoustic coupler also being operable for being connected to said third and fourth terminals to enable connection of only said teleprinter to a remote data station.
Claim 8
Dependent Claim
229 words
A communication prOcessor station comprising: teleprinting means having input apparatus for generating digital signals and further having an output display, a digital communication processor computer for receiving said digital signals and in response thereto controlling the operation of said output display, first and second switch means connected between said input apparatus and said computer, third switch means connected between said computer and said output display, a selectively energized relay coil for controlling said second and third switches, an acoustic coupler having transducers for receiving the handset of a telephone set, means for connecting said acoustic coupler to said first switch and to said output display or to said second and third switches, means for energizing said relay coil when said acoustic coupler is connected to said second and third switches, said acoustic coupler when connected to said first switch and said output display being operable to direct digital signals transmitted from a remote terminal through the telephone lines to said computer and further operable to direct digital data from the computer through the telephone lines to the remote terminal, said acoustic coupler when connected to said second and third switches being operable to direct digital signals from said input apparatus through the telephone lines to a remote terminal and being further operable to direct digital signals from the remote terminal through the telephone lines to operate said output display.
Claim 9
Dependent Claim
229 words
A communication prOcessor station comprising: teleprinting means having input apparatus for generating digital signals and further having an output display, a digital communication processor computer for receiving said digital signals and in response thereto controlling the operation of said output display, first and second switch means connected between said input apparatus and said computer, third switch means connected between said computer and said output display, a selectively energized relay coil for controlling said second and third switches, an acoustic coupler having transducers for receiving the handset of a telephone set, means for connecting said acoustic coupler to said first switch and to said output display or to said second and third switches, means for energizing said relay coil when said acoustic coupler is connected to said second and third switches, said acoustic coupler when connected to said first switch and said output display being operable to direct digital signals transmitted from a remote terminal through the telephone lines to said computer and further operable to direct digital data from the computer through the telephone lines to the remote terminal, said acoustic coupler when connected to said second and third switches being operable to direct digital signals from said input apparatus through the telephone lines to a remote terminal and being further operable to direct digital signals from the remote terminal through the telephone lines to operate said output display.
References Cited (Backward Citations)
US2306203A
Cited
US2301211A
Cited
US3227806A
Cited
US3113176A
Cited
US3305839A
Cited
US3368028A
Cited
US3351919A
Cited
US3544721A
Cited
US3505474A
Cited
US3524935A
Cited
US3700814A
Cited
US3636257A
Cited
US3649759A
Cited
US3684832A
Cited
US3716835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |