Patent Yard Sign in
Expired Canadian patentCanada

Spelled word recognizer

CA 1163371 A · Owner: Western Electric Company, Incorporated · Inventors: Aldefeld, Bernd; Levinson, Stephen E.; Szymanski, Thomas G.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Abstract A string of input characters is recognized as one of a plurality of reference sets which are stored in predetermined groups. A set of signals representative of the correspondence of the input characters to the reference characters is generated. The input character string is identified responsive to the character correspondence signals. The character string identification comprises forming a set of signals each representative of the correspondence of the input character string to one of the predetermined groups responsive to the character correspondence signals. Jointly responsive to the character correspondence signals, the reference character sets and the group correspondence …

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted March 6, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 6, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 27, 1981
GrantedMarch 6, 1984
Term endedMarch 6, 2001
Patent numberCA 1163371 A
Classification (IPC)G10L15/00 +1 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedAug 27, 1981Patent grantedMarch 6, 1984Term endedMarch 6, 2001

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.