Patent US3786429A successfully refreshed from Google Patents.
US3786429A
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Electronic text display system which simulates a typewriter
Assignee: Raytheon Co
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Filing: 1971-07-12
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Granted: 1974-01-15
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Expires: 1991-07-12
Abstract
Abstract There is disclosed herein an electronic typewriter system including an operator station and desk-side console. The operator station includes a keyboard and a visual display for typed text, and the console includes suitable control and memory means and a print-out device. The system enables textual material to be entered via the keyboard and to be displayed in a full page format on the display, as well as to be stored in a memory. The system provides editing capabilities for changing, editing and manipulating the text, and a hard copy of the displayed text can be typed out by a printer upon command. The keyboard and display are constructed and organized to simulate the operational features of a conventional electric typewriter. Special equipment includes simulated platen knobs, margin indicators, space and back space keys, and a vertical spacing lever similar in use to those found on conventional electric typewriters, along with electronic subsystems acting in cooperation therewith to enable display of a page outline, page movement on the display, setting of margins for the typed text, controlled movement of a position indicator or cursor, and so forth.
Inventors
- 👤 C Mead
- 👤 A Goldman
- 👤 S Kurtin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:12
CPC Classifications
G; G06; G06F; G06F40/00; G06F40/10; B; B41; B41J; B41J3/00; B41J3/44; B41J3/46; B41J7/00; B41J7/96
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
260 words
In an electronic text display system, a console for simulating a typewriter comprising, keyboard means, said keyboard means having a cluster of alphanumeric and control keys similar to those of a conventional typewriter, and having a plurality of function control keys, visual display means for displaying a page outline and text thereon as entered by said keyboard means, said page outline and text being movable up and down on said display means, and platen knob means for causing movement of said page outline and text on said display means, said platen knob means including at least a knob member similar to that of a conventional typewriter and which is rotatable in a first and second direction and switch means coupled to said knob member for generating increment signals when said knob member is rotated in said first direction and decrement signals when said knob member is rotated in said second direction, said system further including control means for controlling the portion of said page outline and text thereon being displayed on said display means in response to rotation of said knob member, said control means including means for maintaining a row count which is representative of the portion of said page outline and text thereon being displayed on said display means, means for incrementing and decrementing said row count in response to said increment and decrement signals, respectively, and means responsive to the increment and decrement of said row count for causing said display means to display a greater or lessor portion, respectively, of said page outline and text thereon.
Claim 2
Dependent Claim
260 words
In an electronic text display system, a console for simulating a typewriter comprising, keyboard means, said keyboard means having a cluster of alphanumeric and control keys similar to those of a conventional typewriter, and having a plurality of function control keys, visual display means for displaying a page outline and text thereon as entered by said keyboard means, said page outline and text being movable up and down on said display means, and platen knob means for causing movement of said page outline and text on said display means, said platen knob means including at least a knob member similar to that of a conventional typewriter and which is rotatable in a first and second direction and switch means coupled to said knob member for generating increment signals when said knob member is rotated in said first direction and decrement signals when said knob member is rotated in said second direction, said system further including control means for controlling the portion of said page outline and text thereon being displayed on said display means in response to rotation of said knob member, said control means including means for maintaining a row count which is representative of the portion of said page outline and text thereon being displayed on said display means, means for incrementing and decrementing said row count in response to said increment and decrement signals, respectively, and means responsive to the increment and decrement of said row count for causing said display means to display a greater or lessor portion, respectively, of said page outline and text thereon.
Claim 3
Dependent Claim
85 words
A system as in claim 1 including manually settable margin means for controlling the right and left limits of text display within said page outline, said margin means including margin levers settable by an operator, the settings of said levers causing margin code data to be supplied to said control means and said control means to control the left limit of text display and to provide signals inhibiting further text entry by said keyboard means when a line of text reaches a right margin limit.
Claim 4
Dependent Claim
67 words
A system as in claim 2 including space control means settable to determine the number of intermediate lines between lines of text, said space control means providing signals to said control means for use in combination with a carriage return signal entered by said keyboard means for storage of signals which indicate and control the number of blank lines intermediate lines of text on said display means.
Claim 5
Dependent Claim
183 words
In an electronic text display system, a console for simulating a typewriter comprising, keyboard means, said keyboard means having a cluster of alphanumeric and control keys similar to those of a conventional typewriter, and having a plurality of functional control keys, visual display means for displaying a page outline and text thereon as entered by said keyboard means, and manually settable margin means for controlling the right and left limits of text display within said page outline on said display means, said margin means including right and left margin lever means settable by an operator and binary encoder means responsive to the positions of said right and left margin lever means for generating right and left margin binary code signals, respectively, said system further including control means responsive to said left margin code signal for controlling the left limit of text display and responsive to said right margin control signal to provide signals inhibiting further text entry by said keyboard means when a line of text reaches a position of said display means corresponding to the setting of said right margin lever means.
Claim 6
Dependent Claim
183 words
In an electronic text display system, a console for simulating a typewriter comprising, keyboard means, said keyboard means having a cluster of alphanumeric and control keys similar to those of a conventional typewriter, and having a plurality of functional control keys, visual display means for displaying a page outline and text thereon as entered by said keyboard means, and manually settable margin means for controlling the right and left limits of text display within said page outline on said display means, said margin means including right and left margin lever means settable by an operator and binary encoder means responsive to the positions of said right and left margin lever means for generating right and left margin binary code signals, respectively, said system further including control means responsive to said left margin code signal for controlling the left limit of text display and responsive to said right margin control signal to provide signals inhibiting further text entry by said keyboard means when a line of text reaches a position of said display means corresponding to the setting of said right margin lever means.
Claim 7
Dependent Claim
67 words
A system as in claim 4 including space control means settable to determine the number of intermediate lines between lines of text, said space control means providing signals to said control means for use in combination with a carriage return signal entered by said keyboard means for storage of signals which indicate and control the number of blank lines intermediate lines of text on said display 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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |