Handwritten character-recognizing apparatus for automatically generating and displaying character frames

• US 4,953,225 A
• Filed: 10/14/1988
• Issued: 08/28/1990
• Est. Priority Date: 10/16/1987
• Status: Expired due to Fees

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Togawa, Fumio, Hirose, Hitoshi
• Primary Examiner(s): Boudreau, Leo H.
• Assistant Examiner(s): Razavi, Michael
• Application Number:
  US07/257,842
• Time in Patent Office: 683 Days
• Field of Search: 382/13, 382/3, 382/59, 382/10, 382/1, 382/58
• US Class Current: 382/179
• CPC Class Codes: G06V 30/32 Digital ink

Abstract

A handwritten character-recognizing apparatus having a discriminating device which discriminates whether or not an input device, namely, the pen of a writing/displaying tablet has moved from one character frame to the following character frame. When it is discriminated that the input device has moved to the following character frame, a character frame generating device automatically generates a character frame adjacent to the last character frame of the character frames arranged in a line. Thereby, the reading of handwritten characters and the recognizing of standard characters which are displayed instead of the handwritten characters are facilitated.

Claims

1. A handwritten character-recognizing apparatus comprising:

writing/displaying means for writing and displaying character information thereon;

input means for writing said character information in one of said plurality of character frames on said writing/displaying means;

a central processing unit having discriminating means for discriminating whether said input means has moved from said one character frame to an adjacent character frame;

character recognizing means having a plurality of standard characters stored therein for comparing said character information in said one character frame with said plurality of standard characters and displaying one of said standard characters on said writing/displaying means which corresponds with said character information in said one character frame in response to said input means being discriminated to have moved to said adjacent character frame by said discriminating means; and

character frame generating means for automatically generating and displaying an additional character frame to said plurality of character frames in a position adjacent to the last character frame of said plurality of character frames in response to said discriminating means discriminating that said input means has moved from the one character frame to said adjacent character frame.

3. A handwritten character-recognizing apparatus according to claim 1, wherein said input means comprises a pen for writing said character information on said writing/displaying means, an A/D converter for developing a digital signal in response to an analog signal received from said writing/displaying means corresponding to said character information, sampling means for developing sampled data at a constant interval of said digital signal from said A/D converter, and a character pattern buffer for storing said sampled data.

4. A handwritten character-recognizing apparatus according to claim 1, wherein said writing/displaying means comprises a tablet for writing said character information thereon and an electroluminescence display for displaying said character information.

5. A handwritten character-recognizing apparatus according to claim 1, wherein said writing/displaying means comprises a tablet for writing said character information thereon and a liquid crystal display for displaying said character information.

6. A handwritten character-recognizing apparatus according to claim 1, wherein said writing/displaying means comprises a tablet for writing said character information thereon and a CRT display for displaying said character information.

2. A handwritten character-recognizing apparatus for automatically generating additional character frames to a plurality of character frames comprising:

a pen for inputting handwritten characters;

writing/displaying means for displaying said plurality of character frames in which said handwritten characters are inputted with said pen and for sequentially displaying standard characters which correspond to said handwritten characters in said plurality of character frames;

character recognizing means for comparing said handwritten characters with said standard characters stored therein and displaying said standard characters which correspond to said handwritten characters on said writing/displaying means;

a central processing unit including,

detecting means for detecting a position on said written/displaying means which is indicated by said pen,

discriminating means for discriminating whether the position indicated with said pen and detected by said detecting means is located in one of said plurality of character frames,

character editing means for editing said standard characters displayed in said plurality of character frames if the position indicated with said pen is discriminated to be outside said plurality of character frames by said discriminating means and said standard characters are displayed in said plurality of character frames, and

character frame moving means for moving said plurality of character frames to the position indicated by said pen in response to the position indicated with said pen being discriminated to be outside said plurality of character frames by said discriminatory means and said standard characters fail to be displayed in said plurality of character frames; and

character frame generating means for automatically generating and displaying said additional character frames to said plurality of character frames adjacent to the last character frame of said plurality of character frames in response to said discriminating means discriminating that said pen has moved from one of said character frames to an adjacent character frame.

7. A handwritten character-recognizing apparatus according to claim 2, further comprising an A/D converter for developing a digital signal in response to an analog signal received from said writing/displaying means corresponding to said handwritten characters, sampling means for developing sampled data at a constant interval of said digital signal from said A/D converter, and a character pattern buffer for storing said sampled data.

8. A handwritten character-recognizing apparatus according to claim 2, wherein said writing/displaying means comprises a tablet for writing said character information thereon and an electroluminescence display for displaying said character information.

9. A handwritten character-recognizing apparatus according to claim 2, wherein said writing/displaying means comprises a tablet for writing said character information thereon and a liquid crystal display for displaying said character information.

10. A handwritten character-recognizing apparatus according to claim 2, wherein said writing/displaying means comprises a tablet for writing said character information thereon and a CRT display for displaying said character information.

11. A method for automatically generating additional character frames to a plurality of character frames comprising the steps of:

writing character information in one of said plurality of character frames on writing/displaying means;

discriminating whether said character information is being written in an adjacent character frame to said one character frame;

comparing said character information in said one character frame with a plurality of standard characters when said character information is discriminated to being written in said adjacent character frame;

displaying one of said plurality of standard characters on said writing/displaying means which corresponds with said character information in said one character frame when said character information is discriminated to being written in said adjacent character frame; and

automatically generating and displaying said additional character frames to said plurality of character frames adjacent to the last character of said plurality of character frames when said character information is discriminated to being written in said adjacent character frame.