U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Apparatus and method for emulating computer keyboard input with a handprint terminal

Patent 4562304 Issued on December 31, 1985. Estimated Expiration Date: Icon_subject May 23, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3112362

3399401

3487371

3500323

3705956

3909785

Automatic character recognition device employing dynamic programming
Patent #: 3979722
Issued on: 09/07/1976
Inventor: Sakoe

Graphic entry tablet with improved addressing
Patent #: 3999012
Issued on: 12/21/1976
Inventor: Dym

Multistage digital filtering utilizing several criteria Patent #: 4375081
Issued on: 02/22/1983
Inventor: Blesser

Inventors

Assignee

Application

No. 06/613099 filed on 05/23/1984

US Classes:

178/18.01, Position coordinate determination for writing (e.g., writing digitizer pad, stylus, or circuitry)382/315Sensing mechanism in platen

Examiners

Primary: Schreyer, Stafford D.

Attorney, Agent or Firm

International Classes

G06F 3/023 (20060101)
G06F 3/033 (20060101)

Abstract

An apparatus and method are disclosed for emulating computer keyboard input from a handprint terminal, the output of the handprint terminal comprising character data along with row and column position data for each character. A line buffer memory temporarily holds characters from the same row. While the characters belonging to any given row are stored in the line buffer memory, local editing may be performed to delete and/or add and/or change characters, with function signals being outputted from the apparatus by the control unit equivalent to function signals that would be outputted from a keyboard. When a character received is in a different row from the character preceeding it, the line buffer memory is cleared of all previous characters that had been loaded into it and carriage return or carriage-up signals are outputted from the control unit corresponding to the row change. The character is then loaded into the line buffer memory to start a new row.

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