Electronic system pocketbook apparatus

Details Electronic system pocketbook apparatus Electronic system pocketbook apparatus

1990-03-30

1992-04-28

Malzahn, David H.

Boots, shoes, and leggings

36470506, G06F 1502

Patent

active

051093545

ABSTRACT:
An electronic system pocketbook apparatus includes a foldable and portable main body, an expansion card holder mounted on the main body, a necessary number of expansion cards held by the expansion card holder, and a communicating unit. The main body has a functions of right and left portions coupled by a cover, is folded upon carrying of the main body so that the right portion overlaps the left portion, a folded portion being fastened by a cover clip provided to the cover, and has basic functions of controlling arithmetic operations and display data processing by using an internal controller, data inputting means, and displaying data on a display unit. The communicating unit performs data transmission/reception between the held expansion cards and the main body via the expansion card holder.

REFERENCES:
patent: 4264962 (1981-04-01), Kodaira
patent: 4471440 (1984-09-01), Check, Jr.
patent: 4497036 (1985-01-01), Dunn
patent: 4545023 (1985-10-01), Mizzi
patent: 4825395 (1989-04-01), Kinsor, Jr. et al.
patent: 4870604 (1989-09-01), Tatsuno
patent: 4918632 (1990-04-01), York
"Remote Key Input to Personal Computer", IBM Tech. Disclosure Bulletin, vol. 29, No. 9, Feb. 1987, pp. 4201-4202 364/709.12.

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