US3700814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable input-output terminal
Assignee: HP Enterprise Services LLC
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Filing: 1969-04-16
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Granted: 1972-10-24
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Expires: 1989-04-16
Abstract
Abstract A pushbutton tone generator having a housing to receive the handpiece of conventional, dial-type telephones for converting same by means of audio-coupling to a tone transmitting station with automatic call and identification means and selectable data encoding means.
Inventors
- 👤 Earl D Spraker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:30
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/21; H04M1/215; H04M1/2155; H04L; H04L27/00; H04L27/26; H04L27/30; H04M1/04; H04M1/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
150 words
A portable terminal having voice tone generators for communicating with a data processing center by way of a telephone channel which comprises: means for coupling said portable terminal to a telephone channel, a first control means in said portable terminal operable to Direct the automatic generation of a first coded tone sequence on said telephone channel in response to actuation thereof, a second control means in said terminal responsive to actuation thereof to direct generation of a preset second coded tone sequence for transmission over said telephone channel and including cell means which includes the program for the sequence and combination of tone signals, one of said coded tone sequences operating to connect said terminal to said data processing center and the other of said coded tone sequences operating to identify said terminal to said data processing center to enable the transmission of data between said terminal and said computer.
Claim 2
Dependent Claim
150 words
A portable terminal having voice tone generators for communicating with a data processing center by way of a telephone channel which comprises: means for coupling said portable terminal to a telephone channel, a first control means in said portable terminal operable to Direct the automatic generation of a first coded tone sequence on said telephone channel in response to actuation thereof, a second control means in said terminal responsive to actuation thereof to direct generation of a preset second coded tone sequence for transmission over said telephone channel and including cell means which includes the program for the sequence and combination of tone signals, one of said coded tone sequences operating to connect said terminal to said data processing center and the other of said coded tone sequences operating to identify said terminal to said data processing center to enable the transmission of data between said terminal and said computer.
Claim 3
Dependent Claim
28 words
The combination set forth in claim 1 wherein said first control includes a coded call cell which may be preset in accordance with said first coded tone sequence.
Claim 4
Dependent Claim
29 words
The combination set forth in claim 1 wherein said terminal includes first and second actuators thereon which are respectively adapted for actuation of said first and second control means.
Claim 5
Dependent Claim
28 words
The combination set forth in claim 1 wherein said second coded tone sequence includes at least one tone different from any tone accessible by said first control means.
Claim 6
Dependent Claim
39 words
The combination set forth in claim 1 wherein a card reader is connected to said tone generators and has means for actuating said tone generators, but in numbers at least one less than generated by said second control means.
Claim 7
Dependent Claim
27 words
The combination set forth in claim 1 wherein an operator accessible keyboard is connected for manual actuation of all of said tone generators except at least one.
Claim 8
Dependent Claim
110 words
A portable terminal having voice tone generators for communicating with a computer by way of a telephone channel which comprises: means for acoustically coupling said portable terminal through the handset of a conventional telephone instrument, a first control means operable by an actuator on said terminal to direct generation of a call coded tone sequence through said telephone handset to call said computer, and a second control means in said terminal responsive to operation of an actuator on said terminal to direct generation of a preset identification coded tone sequence for transmission through said handset and including a selectively insertable cell for programming the sequence and combination of tone signals.
Claim 9
Dependent Claim
110 words
A portable terminal having voice tone generators for communicating with a computer by way of a telephone channel which comprises: means for acoustically coupling said portable terminal through the handset of a conventional telephone instrument, a first control means operable by an actuator on said terminal to direct generation of a call coded tone sequence through said telephone handset to call said computer, and a second control means in said terminal responsive to operation of an actuator on said terminal to direct generation of a preset identification coded tone sequence for transmission through said handset and including a selectively insertable cell for programming the sequence and combination of tone signals.
Claim 10
Dependent Claim
120 words
A portable terminal having voice tone generators therein for communicating with a computer over a telephone channel which comprises: means for coupling said terminal to a telephone channel, an array of actuators on said terminal accessible to an operator for the generation of coded combinations of voice tone signals, an identification sequencer for control of said generators for automatically generating a sequence of said combinations wherein at least one tone is employed in at least one combination other than the tones produced in response to said actuators, said sequencer including a preset coded cell which contains the program for the sequence and combination of tone signals, and an actuator on said terminal accessible to said operator for energizing said sequencer.
Claim 11
Dependent Claim
120 words
A portable terminal having voice tone generators therein for communicating with a computer over a telephone channel which comprises: means for coupling said terminal to a telephone channel, an array of actuators on said terminal accessible to an operator for the generation of coded combinations of voice tone signals, an identification sequencer for control of said generators for automatically generating a sequence of said combinations wherein at least one tone is employed in at least one combination other than the tones produced in response to said actuators, said sequencer including a preset coded cell which contains the program for the sequence and combination of tone signals, and an actuator on said terminal accessible to said operator for energizing said sequencer.
Claim 12
Dependent Claim
17 words
The portable terminal of claim 8 wherein said preset coded cell is selectively insertable into said terminal.
Claim 13
Dependent Claim
36 words
The portable terminal of claim 8 and further comprising: a second preset coded cell operable by the actuation of a switch on said terminal for directing a preset sequence of tones for initially calling a computer.
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |