Message card

Details Message card Message card

1993-06-14

1996-03-26

Hjerpe, Richard

Computer graphics processing and selective visual display system

Display driving control circuitry

345901, 40124, G09G 300

Patent

active

055024637

ABSTRACT:
A message card includes a button type dry battery, a visual image display, a speaker, a control circuit for recording, storing and reproducing both of visual images and audio messages data, a flexible circuit substrate for mounting the control circuit, connecting substrate formed integrally to the circuit substrate for connecting electrically the control circuit with the visual image display and with the speaker, writing terminals for writing desired visual images and audio messages data on the control circuit and being connected electrically to the control circuit on the substrate, and a switch for activating the reproduction of the visual images and the audio messages data.

REFERENCES:
patent: 4159417 (1979-06-01), Rubincam
patent: 4363081 (1982-12-01), Wilbur
patent: 4639225 (1987-01-01), Washizuka
patent: 4656469 (1987-04-01), Oliver et al.
patent: 4694347 (1987-09-01), Ito
patent: 4791741 (1988-12-01), Kondo
patent: 4862153 (1989-08-01), Nakatani et al.
patent: 4907162 (1990-03-01), Fougere
Intel Memory Components Handbook, 1989, pp. 1-2.
IBM Technical Disclosure, "Touch Keyboard Using Liquid Crystal Material", vol. 18, No. 1, pp. 231-232, Jun. 1975.
Murray, John M.; "The Architecture of an Electronic Book", IEEE Transactions on Industrial Electronics, vol. IE-29, No. 1, Feb. 1982.

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