Combinatorial keyboards which encode characters and a space

Typewriting machines – Plural-key-actuated typewriter

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

400472, 400489, 340365S, B41J 506

Patent

active

046556214

ABSTRACT:
A keyboard for a typewriter or a computer comprises two groups of keys for operation by the digits of the two hands of an operator. Each group has five home keys, and also some non-home keys, arranged in continuous rows. A decoder is provided for decoding the operation of the keys so that operation of each individual home key of the first group signals a respective vowel and simultaneous operation of a home key of the first group and a home key of the second group signals a consonant. Additional rows provide for output of a character and a space.

REFERENCES:
patent: 2031017 (1936-02-01), Tevis
patent: 3428747 (1969-02-01), Alferieff
patent: 3507376 (1970-04-01), Kafafian
patent: 3929216 (1975-12-01), Einbinder
patent: 3945482 (1976-03-01), Einbinder
patent: 3970185 (1976-07-01), Shelton
patent: 4067431 (1978-01-01), Whitaker
patent: 4333097 (1982-01-01), Buric et al.
patent: 4458238 (1984-07-01), Learn
patent: 4467321 (1984-08-01), Volnak
IBM TDB; "Digital X Typewriter Keyboard"; D. L. Conway; vol. 18; No. 12; pp. 4187-4190; May 1976.
IBM TDB; "Easy to Learn Programmable Keyboard"; R. E. Bacon; vol. 24, No. 5, p. 2465; Oct. 1981.
IBM TDB; "Kana Keyboard w/Palm Rest"; A. Uchiyama; vol. 25; No. 9; pp. 4915-4916; Feb. 1983.
"Standard Typewriter v. Chord Keyboard"; R. Conrad et al; Ergonomics; pp. 77-88; vol. 8.
"A Ten-Key Typewriter"; E. T. Klemmer; IBM Research Memorandum; RC-65; Nov. 1958.
"Evaluation of an 8-Key Word-Writing Typewriter; G. R. Lockhead et al; IBM Research Memorandum; RC-180; Nov. 1959.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Combinatorial keyboards which encode characters and a space does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combinatorial keyboards which encode characters and a space, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combinatorial keyboards which encode characters and a space will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1083303

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.