Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1983-12-07
1986-12-30
Caldwell, Sr., John W.
Communications: electrical
Audible indication
Percussion-type sound producer
340365R, 340711, 400486, G01G 300
Patent
active
046332278
ABSTRACT:
There is disclosed a programmable keyboard apparatus for allowing a user to select any one of a predetermined number of different keyboard arrangements such as the Qwerty or the Dvorak arrangements. The keyboard contains a plurality of fixed input keys arranged in rows and columns and according to a standard typewriter keyboard format. Each key has positioned above the key an indicating area whereby the designation or symbol for the key is automatically changed by the apparatus each time a different format is selected. In this manner, the user can experiment with keyboard formats which enable more rapid typing with fewer errors. The construction is extremely economical, and therefore, in utilizing the apparatus a user will have access to different keyboard arrangements which will increase the users ability to type or enter data.
The keyboard disclosed can be used as a computer keyboard which will also enable a rapid change of symbols while permitting the operator to view the symbols for each different format through the respective windows.
REFERENCES:
patent: 3200375 (1965-08-01), Lutz
patent: 3847263 (1974-11-01), X
patent: 4078257 (1978-03-01), Bagley
patent: 4124843 (1978-11-01), Bramson
patent: 4244659 (1981-01-01), Malt
patent: 4352959 (1982-10-01), Warnecke
patent: 4459581 (1984-07-01), Wilson
patent: 4480932 (1984-11-01), Willcox
patent: 4544276 (1985-10-01), Horodeck
patent: 4551717 (1985-11-01), Dreher
Johnson, Jr., "Keyboard With Changeable Encoding and Key Designation," IBM Technical Disclosure Bulletin, vol. 13, No. 7, Dec. 1970.
Cooper and Harrison, "Changeable Array Keyboard," IBM Technical Disclosure Bulletin, vol. 11, No. 5, Oct. 1968.
Ghosh and Langdon, "Electronically Changeable Keyboard," IBM Technical Disclosure, vol. 23, No. 3, Aug. 1980.
T. R. Reid, Article in Washington Post entitled, "It May Be Taps for the Qwerty Keyboard" Apr., 1985.
Caldwell Sr. John W.
Hays Robert A.
Heim Michael F.
ITT Corporation
Van Der Sluys Peter C.
LandOfFree
Programmable keyboard for a typewriter or similar article does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Programmable keyboard for a typewriter or similar article, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable keyboard for a typewriter or similar article will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1550415