CHARACTER ENCODER

• US 3,588,875 A
• Filed: 10/10/1966
• Issued: 06/28/1971
• Est. Priority Date: 10/10/1966
• Status: Expired due to Term

• Current Assignee: William D. Gabor
• Original Assignee: William D. Gabor
• Inventors: Gabor, William D.
• Application Number:
  US04/598,558
• Time in Patent Office: 1,722 Days
• US Class Current: 341/90
• CPC Class Codes: B41J 5/08 Character or syllable selected by means of keys or keyboards of the typewriter type
• CPC Class Codes: B41J 5/16 Mounting or connecting key buttons on or to key levers
• CPC Class Codes: H01H 3/122 with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor
• CPC Class Codes: H03K 17/972 having a plurality of control members, e.g. keyboard
• CPC Class Codes: H03K 17/98 having a plurality of control members, e.g. keyboard
• CPC Class Codes: H03M 11/22 Static coding H03M11/26 takes precedence
• CPC Class Codes: Y10T 74/20238 Interlocked
• CPC Class Codes: Y10T 74/20244 Push button

Abstract

A KEYBOARD ENCODER COMPRISES A SET OF KEYS. EACH KEY IS IN JUXTAPOSITION WITH ONE OR MORE FIELD-RESPONSIVE ELEMENTS ASSOCIATED WITH THAT KEY, THE OUTPUTS OF THE FIELD-RESPONSIVE ELEMENTS BEING CONBEYED TO OUTPUT TERMINALS OF THE ENCODER. ACTUATION OF KAY ALTERS THE FIELD TO WHICH THE ELEMENTS ASSOCIATED THEREWITH RESPOND. THE NUMBER OF ELEMENTS ASSOCITATED WITH EACH KEY AND THE CONNECTIONS OF THESE ELEMENTS TO THE OUTPUT TERMINALS CORRESPOND TO THE OUTPUT CODE FOR THE CHARACTER REPRESENTED BY THE KEY. CONSEQUENTLY, THE RESPONSES OF THE FIELD-RESPONSIVE ELEMENTS TO ACTUATION OF A KEY PRO-

VIDE A DIRECTLY ENCODED REPRESENTATION OF THE CORRESPONDING CHARACTER AT THE OUTPUT TERMINALS.

Claims