Communications: electrical – Digital comparator systems
Patent
1975-07-31
1977-01-25
Shaw, Gareth D.
Communications: electrical
Digital comparator systems
340365R, 340365S, G06F 302, G06F 304, G06F 314, G08C 100
Patent
active
040053881
ABSTRACT:
An interactive computer terminal which is capable of complete hand-held operation with total freedom of position and location is provided. The terminal incorporates a self-contained full 75-character keyboard, a 20-character alpha numeric readout, and a 100-character memory. In order to assure review of any message, a conveniently positioned scroll switch is incorporated to advance or roll back any message in the memory for presentation on the display. The unique, totally portable hand-held interactive terminal is provided with a 20-key pad which is operated with one hand, while the other hand selects one of four different information levels for each key. Consequently, each of the 20 keys is capable of transmitting four different characters or other information, thereby assuring easy, compact transmission of all numeric, alphabetic, and punctuation characters with sufficient keyboard room available for command capability.
REFERENCES:
patent: 2581665 (1952-01-01), Jarmann
patent: 3022878 (1962-02-01), Seibel
patent: 3319884 (1967-05-01), Franklin
patent: 3381276 (1968-04-01), James
patent: 3389404 (1968-06-01), Koster
patent: 3403225 (1968-09-01), Mislan
patent: 3428747 (1969-02-01), Alferieff
patent: 3500327 (1970-03-01), Belcher
patent: 3526892 (1970-09-01), Bartlett
patent: 3571802 (1971-03-01), Serra
patent: 3675513 (1972-07-01), Flanagan
patent: 3680077 (1972-07-01), Huberecht
patent: 3728710 (1973-04-01), Berg
patent: 3753233 (1973-08-01), Cardell
"Input Keyboard", P. E. Stuckert, IBM Technical Disclosure Bulletin, vol. 14, No. 3, Aug. 1971, pp. 952-959.
Morley Richard E.
Schwenk George G.
Shaw Gareth D.
Termiflex Corporation
Thomas James D.
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