Pattern input apparatus

• US 5,239,140 A
• Filed: 12/03/1991
• Issued: 08/24/1993
• Est. Priority Date: 03/08/1991
• Status: Expired due to Term

• Current Assignee: Pioneer Electronics (USA) Incorporated (Pioneer Corporation)
• Original Assignee: Pioneer Electronics (USA) Incorporated (Pioneer Corporation)
• Inventors: Kuroda, Kazuo, Suzuki, Toshio
• Primary Examiner(s): Schreyer, Stafford
• Application Number:
  US07/802,035
• Time in Patent Office: 630 Days
• Field of Search: 178/18, 178/19, 178/21, 178/87
• US Class Current: 178/18.01
• CPC Class Codes: G06V 30/1423 the instrument generating sequences of position coordinates corresponding to handwriting preprocessing or recognising digital ink G06V30/32

Abstract

A pattern input apparatus designed to improve the operational easiness comprises a plurality of contact detecting device, arranged on a detection surface, each for generating a detection signal upon contact with an object. A pattern drawn by the object moving in contact with the detection surface is discriminated, using the locus or the amount of displacement vector of a point located approximately at the center between at least two adjoining ones of the plurality of contact detecting devices on the detection surface, when the detection signals are output from the at least two adjoining ones of the plurality of contact detecting devices.

Claims

1. A pattern input apparatus comprising:

a plurality of contact detecting means, arranged on a detection surface, each generating a detection signal upon contact with an object; and

pattern discriminating means for discriminating a pattern drawn by the object moving in contact with said detection surface, using one of a locus or an amount of a displacement vector of a point located approximately at the center of the contact by the object with said detection surface between at least two adjoining ones of said contact detecting means on said detection surface, where said detection signals are generated by said at least two adjoining ones of said plurality of contact detecting means.

2. A pattern input apparatus comprising:

a plurality of contact detecting means, arranged on a detection surface, each generating a detection signal upon contact with an object; and

pattern discriminating means for discriminating a pattern drawn by the object moving in contact with said detection surface, using an evaluation function acquired by weighting said detection signals in accordance with distances from a point located approximately at the center of the contact by the object with said detection surface, of at least two adjoining ones of said contact detecting means, where said detection signals are generated by said at least two adjoining ones of said plurality of contact detecting means.