Electro-optic slate for input/output of hand-entered textual and

Details Electro-optic slate for input/output of hand-entered textual and Electro-optic slate for input/output of hand-entered textual and

1986-12-01

1989-06-13

Caldwell, Sr., John W.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340707, 178 19, 341 5, 341 33, G09G 300

Patent

active

048396346

ABSTRACT:
A portable interactive electro-optic data input/output, storage, processing, and display device responsive to hand printed text and hand drawn graphics. The device preferably comprises a combined flat panel display and pen sensing surface constructed from non-mechanical, non-emissive display elements, such as liquid crystal display elements. The device also comprises an input pen for manual entry of hand printed text and hand drawn graphics, as well as commands, directly onto the display surface for providing an electronic writing and drawing slate. The display elements themselves are preferably utilized as input pen sense locations. The flat panel display and pen sensing surface is constructed so that there is no display distortion when the input pen is in contact with the surface. Rapid input pen sensing is provided for accommodating natural pen movement on a high resolution, large area display. A character recognition method is also associated with the device for automatic and computationally efficient on-line recognition of hand printed text characters, while accommodating a natural printing style. Hand printed text characters are recognized and preferably stored in a compact and standardized format, such as ASCII, for later display, processing, or output to external equipment, such as a printer or computer. Graphics can also be entered and stored for later display, processing, or output to an external device, and graphics can be interspersed with text, if desired. Also, text and graphics can preferably be input to the device from external information processing equipment for display and/or processing.

REFERENCES:
patent: 3761877 (1973-09-01), Fernald
patent: 3772685 (1973-11-01), Masi
patent: 3832693 (1974-08-01), Ishizaki et al.
patent: 3990070 (1976-11-01), Spence
patent: 4058849 (1977-11-01), Fitzgerald et al.
patent: 4125873 (1978-11-01), Chesarek
patent: 4190833 (1980-02-01), Bejting et al.
patent: 4363029 (1982-12-01), Piliavin et al.
patent: 4639720 (1987-01-01), Rympalski et al.

Affiliated with

Also associated with

Rating

Electro-optic slate for input/output of hand-entered textual and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electro-optic slate for input/output of hand-entered textual and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electro-optic slate for input/output of hand-entered textual and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1280143