Electronic device with a finger activating data input function

• US 4,654,874 A
• Filed: 10/09/1984
• Issued: 03/31/1987
• Est. Priority Date: 10/25/1983
• Status: Expired due to Term

• Current Assignee: Casio Computer Company Limited
• Original Assignee: Casio Computer Company Limited
• Inventors: Yamamoto, Haruo
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US06/658,496
• Time in Patent Office: 903 Days
• Field of Search: 382/13, 382/3, 382/11, 382/24
• US Class Current: 382/315
• CPC Class Codes: G06F 15/02 manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
• CPC Class Codes: G06F 15/0225 User interface arrangements, e.g. keyboard, display; Interfaces to other computer systems
• CPC Class Codes: G06V 10/17 using hand-held instruments

Abstract

An electronic device enters pattern data upon activating a matrix of keys with a finger. A comparing section compares measured data in a counter (register C) for measuring the time interval from the release of a key till the depression of the next key, with a value set in a memory (register E) for storing a predetermined externally set time interval. When the measured data in the counter reaches the set value in the memory, a character recognizing section performs character recognition on the entered data.

Claims

1. An electronic device for entering pattern data by activating a matrix of keys with a finger, comprising:

pattern data input means including a matrix array of keys;

means connected to said pattern data input means, for measuring the time interval from the release of a key in the pattern data input means till the depression of a next different key therein;

memory means for storing a preset value corresponding to a time interval between characters, including means for enabling a user to enter said preset value in said memory means by a keying-in operation on said input means;

comparing means connected to said interval measuring means and said memory means, for comparing counted data of said time interval measuring means with the preset value corresponding to the time interval stored in said memory means;

means for performing character recognition when said comparing means detects that the counted data of said time interval measuring means reaches said preset value stored in said memory means;

control means connected to said pattern data input means, said time interval measuring means, said memory means, said comparing means, and said character recognition means, for controlling the operation among and of those means; and

display means for displaying the recognized character after the character is recognized by said character recognition means.

2. The electronic device according to claim 1, in which said character recognition means produces a recognition failure signal when the input data is not coincident with the stored pattern data.

3. The electronic device according to claim 1, in which said pattern data input means includes means for selecting one of a calculation mode and a finger activating mode.

4. The electronic device according to claim 1, further including sounding means connected to said control means and for sounding at different frequencies.

5. The electronic device according to claim 4, in which said sounding means sounds every time said time interval measuring means updates the set value.

6. The electronic device according to claim 4, in which said sounding means sounds when said time interval measuring means counts a predetermined time interval and a character recognition is finished.

7. The electronic device according to claim 4, in which, when said character recognition means generates a recognition failure signal, said sounding means responds to a sounding command from said control means which receives said recognition failure signal, and sounds to tell the failure of character recognition.

8. The electronic device according to claim 1, in which said memory means stores, as a value corresponding to the time interval between characters, a value converted into corresponding code data after the data stored by the keying-in operation is operated.

9. The electronic device according to claim 1, in which said memory means stores the time interval between characters as a value corresponding to deenergization of a plurality of dot lines provided at a digit in said display means.