Auxiliary input device

• US 20040012558A1
• Filed: 11/19/2002
• Published: 01/22/2004
• Est. Priority Date: 07/17/2002
• Status: Abandoned Application

• Current Assignee: Renesas Technology Corporation (Renesas Electronics Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Kisuki, Yasuhisa, Kawamata, Takenori
• Application Number:
  US10/298,570
• Publication Number:
  US 20040012558A1
• Time in Patent Office: Days
• US Class Current: 345/156
• CPC Class Codes: G06F 1/1632 External expansion units, e.g. docking stations
• CPC Class Codes: G06F 1/3228 Monitoring task completion, e.g. by use of idle timers, stop commands or wait commands
• CPC Class Codes: G06F 1/325 Power saving in peripheral device
• CPC Class Codes: G06F 3/018 Input/output arrangements for oriental characters
• CPC Class Codes: G06F 3/0233 Character input methods
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06V 30/1423 the instrument generating sequences of position coordinates corresponding to handwriting preprocessing or recognising digital ink G06V30/32
• CPC Class Codes: H04M 1/72409 by interfacing with external accessories hands-free H04M1/60
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: H04M 2250/70 methods for entering alphabetical characters, e.g. multi-tap or dictionary disambiguation
• CPC Class Codes: Y02D 30/50 in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

An auxiliary input device includes an input section having a predetermined contact surface such as a tablet for inputting writing information about a position in which a writing medium is brought into contact with the predetermined contact surface, and a character recognition means for performing character recognition based on the writing information to provide a character recognition result. The auxiliary input device further includes a connection section connectable to an external device such as a portable telephone for sending the top-ranked candidate character of the character recognition result provided from the character recognition means as sending information to the external device when the connection section is connected to the external device.

Claims

1. An auxiliary input device comprising:

an input section for inputting writing information about a position in which a writing medium is brought into contact with a predetermined contact surface thereof;

a character recognition means for recognizing a character based on said writing information to provide a character recognition result; and

a connection section connectable to a predetermined external device for sending, to said predetermined external device, sending information including information about said character recognition result when said connection section is connected to said predetermined external device.

2. The auxiliary input device according to claim 1, wherein

said character recognition result includes a plurality pieces of candidate character information, and

said sending information includes top priority character information having the highest priority of said plurality of pieces of candidate character information.

3. The auxiliary input device according to claim 2, further comprises

a character selection means capable of selecting one piece of character information as selected character information among said plurality of pieces of candidate character information in response to user'"'"'s manipulation of a predetermined manipulation section, wherein

said sending information includes said selected character information.

4. The auxiliary input device according to claim 3, further comprising

a character code generation means for generating a character code for use by said predetermined external device, based on one of said top priority character information and said selected character information, wherein

said sending information includes said character code.

5. The auxiliary input device according to claim 1, wherein

said character recognition result includes a plurality of character recognition results,

said auxiliary input device further comprising

a storage means capable of storing said plurality of character recognition results, wherein

said sending information includes information about said plurality of character recognition results.

6. The auxiliary input device according to claim 2, further comprising:

a writing medium determination means for determining the type of said writing medium, based on said writing information; and

a candidate character rearrangement means for changing the order of priority of said plurality of pieces of candidate character information included in said character recognition result, based on a result of determination of said writing medium determination means.

7. The auxiliary input device according to claim 1, wherein

said sending information includes said writing information itself.

8. The auxiliary input device according to claim 1, wherein

said writing information includes a plurality of coordinate data for specifying the position in which said writing medium is brought into contact with said predetermined contact surface,

said auxiliary input device further comprising

a coordinate code generation means for generating a plurality of coordinate codes for use by said predetermined external device, based on said plurality of coordinate data, wherein

said sending information includes said plurality of coordinate codes.

9. The auxiliary input device according to claim 8, wherein

said plurality of coordinate data include absolute coordinate data in a coordinate space using said predetermined contact surface as a coordinate plane.

10. The auxiliary input device according to claim 8, wherein

said plurality of coordinate data include relative coordinate data between two coordinate data successive in a writing direction.

11. The auxiliary input device according to claim 1, wherein

said writing information includes writing pressure data about a writing pressure in the position in which said writing medium is brought into contact with said predetermined contact surface, and

said sending information includes said writing pressure data.

12. The auxiliary input device according to claim 1, further comprising

a character type information acquisition means for acquiring character type information to be recognized by said character recognition means, wherein

said character recognition means narrows down a character type to be recognized, depending on said character type information, to provide said character recognition result.

13. The auxiliary input device according to claim 1, further comprising

a dictionary acquisition means for externally acquiring a character recognition dictionary to be used in said character recognition means, said character recognition dictionary specifying character patterns to be recognized, wherein

said character recognition means uses said character recognition dictionary to provide said character recognition result.

14. The auxiliary input device according to claim 1, further comprising

a program acquisition means for externally acquiring a character recognition program to be used in said character recognition means, said character recognition program specifying a character recognition method for providing said character recognition result, wherein

said character recognition means uses said character recognition program to provide said character recognition result.

15. The auxiliary input device according to claim 1, further comprising:

an external data holding means having a data holding function; and

an external data passing means capable of performing a data holding operation for causing said external data holding means to hold input data obtained from said predetermined external device through said connection section, and a data output operation for outputting data held in said external data holding means to said predetermined external device through said connection section.

16. The auxiliary input device according to claim 1, further comprising

a control code conversion means receiving said character recognition result for converting a character recognized as said character recognition result into a corresponding control code if said recognized character is a predetermined control character, wherein

said sending information includes said control code.

17. The auxiliary input device according to claim 3, wherein

said selected character information includes character feature information indicating a feature of a character,

said auxiliary input device further comprising

a writing information correction means for correcting said writing information based on said character feature information.

18. The auxiliary input device according to claim 1, further comprising

a power management means for performing a low power consumption operation after expiration of a continuous fixed time interval during which said writing medium is out of contact with said predetermined contact surface of said input section.

19. The auxiliary input device according to claim 1, wherein

said connection section includes a position changing section capable of changing a positional relationship between a predetermined surface of said predetermined external device and said predetermined contact surface through at least 180 degrees when said connection section is connected to said predetermined external device.

20. The auxiliary input device according to claim 1, further comprising

a handwriting identification means for comparing said writing information with previously prepared reference information to make a handwriting identification.

21. The auxiliary input device according to claim 20, further comprising

a certification information output means for outputting certification information for certifying that a result of the handwriting identification by said handwriting identification means satisfies a predetermined condition.