Browse Prior Art Database

Correction Key Feature for Calculator Keypads

IP.com Disclosure Number: IPCOM000111886D
Original Publication Date: 1994-Apr-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 22K

Publishing Venue

IBM

Related People

Dawson, FR: AUTHOR [+2]

Abstract

Disclosed is a technical method for enhancing office devices, such as the numeric calculator with a numeric keypad for sequential input of digits, with a feature for correction of keypad entry errors.

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This is the abbreviated version, containing approximately 100% of the total text.

Correction Key Feature for Calculator Keypads

      Disclosed is a technical method for enhancing office devices,
such as the numeric calculator with a numeric keypad for sequential
input of digits, with a feature for correction of keypad entry
errors.

      This feature would eliminate the need for re-keying the number
sequence from the beginning.  This is very useful for example on a
scientific-type calculator.  With a "correction feature" on this type
of office equipment, re-entering the whole sequence of digits is
unnecessary.  Instead, only two steps are necessary to correct a
miss-typed number sequence.  First, the "correction feature" is
invoked for as many simultaneous digits needing correction.  Second,
the correct keypad entry is made.

      The implementation of this feature on calculator keypads would
be provided by a special function key that invokes the "correction
feature."