The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 1987
Filed:
Sep. 25, 1986
James G Liuzzo, St. Charles, IL (US);
William J Proetta, Elburn, IL (US);
American Telephone and Telegraph Company, AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
A keyboard for use with a terminal in a telephone operator assistance system is disclosed. The keyboard has a numeric array of keys that is surrounded on three sides by separate arrays of specialized function keys. The keyboard is arranged so that the most common keying sequence consists of the operation of a function key in the array to the left of the numeric array, the operation of keys in the numeric array, and the operation of a function key in the array to the right of the numeric array. This keyboard arrangement has been found experimentally to reduce operator work time. In addition, the keyboard contains a main array including alphabetic keys and miscellaneous function keys, and arrays of function keys to the left of and in back of the main array. The function keys are grouped in different arrays according to the type of function being performed, and the relationship of that function to the operation of keys in the numeric array.