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).

Abstract: A method is disclosed for noise distribution in high resistivity substrates containing differential or balanced integrated circuitry obtaining a noise suppression by an introduction of noise distributors. Noise from an external noise source (5) is made isotropic in relation to branches of a differential or balanced integrated circuitry by creating a low resistivity path adjacent to the differential or balanced integrated circuitry typically formed by two integrated transistors (A, B) or group of transistors. The low resistivity path in the general case is made symmetrical in relation to the integrated transistors thereby forming a noise distributor for distributing the noise evenly. The noise distributor then is formed as a floating substrate contact (10) of the same doping kind as a substrate or a well within which the differential or balanced circuitry is contained.

Abstract: A method is disclosed for noise distribution in high resistivity substrates containing differential or balanced integrated circuitry obtaining a noise suppression by an introduction of noise distributors. Noise from an external noise source (5) is made isotropic in relation to branches of a differential or balanced integrated circuitry by creating a low resistivity path adjacent to the differential or balanced integrated circuitry typically formed by two integrated transistors (A, B) or group of transistors. The low resistivity path in the general case is made symmetrical in relation to the integrated transistors thereby forming a noise distributor for distributing the noise evenly. The noise distributor then is formed as a floating substrate contact (10) of the same doping kind as a substrate or a well within which the differential or balanced circuitry is contained.