OPERATION CONTROL AND DATA PROCESSING IN AN ELECTRONIC PEN
First Claim
1. An electronic pen for transmitting coordinate data to an external terminal, the pen being characterized byan image component configured to generate a digital image of a region of a writing surface, anda communication component comprising an image analysis module configured to receive image data representative of said digital image and to transform said image data into coordinate data, and a transmitter module configured to transmit said coordinate data to said external terminal.
1 Assignment
0 Petitions
Accused Products
Abstract
An electronic pen is configured for transmitting coordinate data to an external terminal. The pen includes an image component (200) configured to generate a digital image of a region on a writing surface. Further, the pen includes a communication component (202) comprising an image analysis module (202b) configured to receive image data representative of said digital image and to transform the image data into coordinate data, and a transmitter module (202c) configured to transmit the coordinate data to the external terminal. The communication component (202) may be a standard communication circuit with spare processing capacity, in which the image analysis module (202b) is implemented by image analysis software loaded into a working memory and executed by a processor of the communication component (202).
-
Citations
37 Claims
-
1. An electronic pen for transmitting coordinate data to an external terminal, the pen being characterized by
an image component configured to generate a digital image of a region of a writing surface, and a communication component comprising an image analysis module configured to receive image data representative of said digital image and to transform said image data into coordinate data, and a transmitter module configured to transmit said coordinate data to said external terminal.
-
22. A system for transmission of coordinate data, comprising:
-
an electronic pen for transmitting coordinate data to an external terminal, the pen including an image component configured to generate a digital image of a region of a writing surface, and a communication component comprising an image analysis module configured to receive image data representative of said digital image and to transform said image data into coordinate data, and a transmitter module configured to transmit said coordinate data to said external terminal; and an external terminal configured for reception of coordinate data transmitted from said electronic pen. - View Dependent Claims (25, 26, 27, 28)
-
-
23. A method for transmitting coordinate data from an electronic pen comprising an image component and a communication component to an external terminal, the method comprising:
-
generating, in said image component, a digital image representing a region of a writing surface, receiving, in said communication component, image data representative of said digital image, transforming the received image data into coordinate data in said communication component, and transmitting said coordinate data from said communication component to said external terminal. - View Dependent Claims (24)
-
-
29. A method for connecting an electronic pen to an external terminal, the method comprising:
-
initiating a set-up procedure for connecting the electronic pen to a pre-chosen external terminal; and if a tip of said electronic pen is applied onto a surface during said set-up procedure, enabling selection among non-pre-chosen external terminals, and initiating a procedure for connecting to a selected terminal among said non-pre-chosen external terminals. - View Dependent Claims (30, 31)
-
-
32. An electronic pen, comprising:
-
electronic circuitry operable in a high-power mode, a medium-power mode and a low-power mode; a sensor for detecting whether or not a tip of the electronic pen is in contact with a writing surface; and a power management system coupled to the sensor and configured to operate the electronic circuitry; in the high-power mode whenever the tip is in contact with the writing surface, in the medium-power mode whenever the tip is brought out of contact with the writing surface, and in the low-power mode when the tip has been out of contact with the writing surface for more than a predetermined time period. - View Dependent Claims (33, 34, 35, 36, 37)
-
Specification