Handwritten character recording and recognition device

Details Handwritten character recording and recognition device Handwritten character recording and recognition device

2007-04-10

2007-04-10

Do, Anh Hong (Department: 2624)

Image analysis

Image sensing

Hand-held

C382S312000, C382S313000, C382S188000

Reexamination Certificate

active

10468751

ABSTRACT:
The invention is an electronic recording and computing device that resides within or on a pen shaped object for the purpose of recording and processing handwritten text or graphics. The device includes a marking implement that may be a pencil, ink pen, non-marking tip, chalk, crayon, marker, paint, laser marking tool, or any other instrument used for writing or marking. The device records motion and marking with one or more of each of the following components: image sensor (1), light source (5), light detector, force sensor (3), contactor, microprocessor, volatile and non-volatile memory, analog to digital converter. Movement of the apparatus is sensed and recorded by means of the image sensor (1) and optical navigation software which tracks microscopic and/or macroscopic features of the writing surface. The orientation of the pen to the writing surface is electronically sensed and recorded by casting a plane wave of light on the surface and detecting the amount received back with several light sensors placed in a specific orientation with each other.

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