US3582904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable data terminal
Assignee: SINE QUA NON Inc
•
Filing: 1969-02-27
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Granted: 1971-06-01
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Expires: 1989-02-27
Abstract
Abstract A data terminal comprising readily portable components is adapted to be interconnected by voice grade telephone lines to a remotely located computer or other data processing equipment. The data terminal comprises data input means (e.g., a magnetic tape reader or a manually operated keyboard) for generating a coded digital signal, a data set for converting the digital signal of the data input means to a coded modulated signal that can be transmitted over a telephone line and for converting a modulated signal received from said telephone line into a coded digital signal, and translator means for converting digital signals received from the data input means and from the data set into coded electrical signals capable of operating a data printout device (e.g., a paper tape printer or an electric typewriter).
Inventors
- 👤 Rowland Bradwein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:48
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/06; H04M11/066; G; G06; G06F; G06F3/00; G06F3/002; G06F3/01; G06F3/02; G06F3/0227
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
165 words
A data terminal adapted to be interconnected with a remote data processing center by voice grade telephone lines, said data terminal comprising data input means adapted to generate a coded digital signal containing the data introduced into said input device, a data set connected to the data input means for converting said coded digital signal to a modulated signal capable of being transmitted over a voice grade telephone line and for converting a modulated signal received from said telephone line to a coded digital signal, said data set having adapter means for connecting the data set to said telephone line, translator means connected to the data input means and to the data set for converting coded digital signals received from said data input means and from said data set into coded electrical signals capable of operating a data printout device, and a data printout device connected to said translator means for printing coded digital signals received from data input means and from said data set.
Claim 2
Dependent Claim
165 words
A data terminal adapted to be interconnected with a remote data processing center by voice grade telephone lines, said data terminal comprising data input means adapted to generate a coded digital signal containing the data introduced into said input device, a data set connected to the data input means for converting said coded digital signal to a modulated signal capable of being transmitted over a voice grade telephone line and for converting a modulated signal received from said telephone line to a coded digital signal, said data set having adapter means for connecting the data set to said telephone line, translator means connected to the data input means and to the data set for converting coded digital signals received from said data input means and from said data set into coded electrical signals capable of operating a data printout device, and a data printout device connected to said translator means for printing coded digital signals received from data input means and from said data set.
Claim 3
Dependent Claim
32 words
The data terminal according to claim 1 in which the data input means comprises a manually operated keyboard that generates said coded digital signal when the keys of said keyboard are depressed.
Claim 4
Dependent Claim
18 words
The data terminal according to claim 1 in which the data input means is a magnet tape reader.
Claim 5
Dependent Claim
18 words
The data terminal according to claim 1 which the data input means is a perforated paper tape reader.
Claim 6
Dependent Claim
16 words
The data terminal according to claim 1 in which the data input means is a computer.
Claim 7
Dependent Claim
38 words
The data terminal according to claim 1 in which the data set converts the coded signal received from the data input means into a modulated acoustic frequency signal, and in which the adapter means is an acoustic coupler.
Claim 8
Dependent Claim
44 words
The data terminal according to claim 1 in which the data set converts the coded digital signal received from the data input means into coded analog signal containing the encoded data and in which the adapter means is a filter net telephone line connecter.
Claim 9
Dependent Claim
21 words
The data terminal according to claim 1 in which the data printout device is a typewriter operator means and a typewriter.
Claim 10
Dependent Claim
18 words
The data terminal according to claim 1 in which the data printout device is a magnetic tape recorder.
Claim 11
Dependent Claim
18 words
The data terminal According to claim 1 in which the data printout device is a paper tape perforator.
References Cited (Backward Citations)
US3296370A
Cited
US3307147A
Cited
US3281789A
Cited
US3275995A
Cited
US3351919A
Cited
US3400378A
Cited
US3435421A
Cited
US3434117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |