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Patent US4725694A successfully refreshed from Google Patents.
US4725694A
Expired / Lapsed
US
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Computer interface device
Assignee: Nokia Bell Labs
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Filing: 1986-05-13
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Granted: 1988-02-16
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Expires: 2006-05-13
Abstract
Abstract A computer terminal device includes a flat screen display element and a touch-sensitive element. Simulated keyboards can be displayed on the display element and, in response to the touching of the simulated keys, generate appropriate control signals. The same flat screen display can also be used to display computer output, either the result of calculations or the result of information retrieval requests. The slim silhouette of this terminal makes it ideal for hostile environments such as the factory floor or the hospital room.
Inventors
- 👤 Carol M. Auer
- 👤 Daniel L. Castagno
- 👤 Allen W. Haley, Jr.
- 👤 Harry H. Moore, IV
- 👤 Sean E. O'Leary
- 👤 Steven J. Paley
- 👤 Thomas E. Rutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:54
CPC Classifications
G; G06; G06F; G06F1/00; G06F3/00; G06F3/01; G06F3/03; G06F3/033; G06F1/16; G06F1/1613; G06F1/1626; G06F1/1633; G06F1/1637; G06F1/1656; G06F3/048; G06F3/0487; G06F3/0488; G06F3/04886; Y; Y10; Y10S; Y10S345/00; Y10S345/902; Y10S379/00; Y10S379/916
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
114 words
A terminal comprising a touch-sensitive electroluminescent display surface for simultaneously displaying information and for accepting input information through a touch-responsive area in said display surface, and means for coupling said surface to a digital computer for controlling said displaying and for storing and processing said input information, and including means for defining in said touch responsive area an essentially arbitrary pattern A of primary information subareas of said touch-responsive area for providing information, with each defined subarea developing a preselected signal for said computer when touched, a subarea B for recalling a previously displayed pattern of primary information subareas, and subareas C for calling up for display preselected other patterns of primary information subareas.
Claim 2
Dependent Claim
114 words
A terminal comprising a touch-sensitive electroluminescent display surface for simultaneously displaying information and for accepting input information through a touch-responsive area in said display surface, and means for coupling said surface to a digital computer for controlling said displaying and for storing and processing said input information, and including means for defining in said touch responsive area an essentially arbitrary pattern A of primary information subareas of said touch-responsive area for providing information, with each defined subarea developing a preselected signal for said computer when touched, a subarea B for recalling a previously displayed pattern of primary information subareas, and subareas C for calling up for display preselected other patterns of primary information subareas.
Claim 3
Dependent Claim
23 words
The terminal of claim 1 wherein said subarea B and subareas C direct said computer to carry out the respective functions when touched.
Claim 4
Independent Claim
96 words
A method of simulating a typewriting keyboard on a touch-sensitive display surface comprising the steps of: (a) displaying a typewriter keyboard arrangement on said display surface, (b) responding to the touching of any of the key areas of said keyboard display by generating the electric code corresponding to the character assigned to the touched key area, and (c) altering the labels on the key areas in response to the touching of a special key area corresponding to a shift or control key to assign different electric codes to these key areas corresponding to the altered labels.
Claim 5
Independent Claim
96 words
A method of simulating a typewriting keyboard on a touch-sensitive display surface comprising the steps of: (a) displaying a typewriter keyboard arrangement on said display surface, (b) responding to the touching of any of the key areas of said keyboard display by generating the electric code corresponding to the character assigned to the touched key area, and (c) altering the labels on the key areas in response to the touching of a special key area corresponding to a shift or control key to assign different electric codes to these key areas corresponding to the altered labels.
Claim 6
Dependent Claim
114 words
A terminal comprising: a touch-sensitive plasma display surface for simultaneously displaying information and for accepting input information through a touch-responsive area in said display surface, and means for coupling said surface to a digital computer for controlling said displaying and for storing and processing said input information, and including means for defining in said touch responsive area (a) an essentially arbitrary pattern of primary information subareas of said touch-responsive area for providing informatin, with each defined subarea developing a preselected signal for said computer when touched, (b) a subarea for recalling a previously displayed pattern of primary information subareas, and (c) subareas for calling up for display preselected other patterns of primary information subareas.
Claim 7
Dependent Claim
114 words
A terminal comprising: a touch-sensitive plasma display surface for simultaneously displaying information and for accepting input information through a touch-responsive area in said display surface, and means for coupling said surface to a digital computer for controlling said displaying and for storing and processing said input information, and including means for defining in said touch responsive area (a) an essentially arbitrary pattern of primary information subareas of said touch-responsive area for providing informatin, with each defined subarea developing a preselected signal for said computer when touched, (b) a subarea for recalling a previously displayed pattern of primary information subareas, and (c) subareas for calling up for display preselected other patterns of primary information subareas.
References Cited (Backward Citations)
US4224615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-15 | 1991-08-17 | 1992-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-15 | 1995-08-17 | 1996-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-15 | 1999-08-17 | 2000-02-16 | $7700.00 | Window Closed / Lapsed |