Electronic pen, and control device and method thereof
First Claim
1. A control device for installation in an electronic pen provided with a pen stem and an associated force sensor, comprisinga comparator which is adapted to receive an analog measuring signal representative of a force of application of the electronic pen to a surface from the force sensor, to compare the analog measuring signal with a fixed reference signal and, based on the comparison, to issue a digital output signal,a converter which is adapted to receive the analog measuring signal and to convert this into a sequence of digital force values;
- anda processor which is electrically connected to the comparator and the converter and which is adapted to selectively activate the converter, based on the digital output signal from the comparator.
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Abstract
A control device is used in a method for controlling the pen based on an analog measuring signal from the force sensor by a processor comparing the analog measuring signal with a fixed reference signal and, based on the comparison, selectively initiating conversion of the analog measuring signal into a sequence of digital force values.
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Citations
12 Claims
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1. A control device for installation in an electronic pen provided with a pen stem and an associated force sensor, comprising
a comparator which is adapted to receive an analog measuring signal representative of a force of application of the electronic pen to a surface from the force sensor, to compare the analog measuring signal with a fixed reference signal and, based on the comparison, to issue a digital output signal, a converter which is adapted to receive the analog measuring signal and to convert this into a sequence of digital force values; - and
a processor which is electrically connected to the comparator and the converter and which is adapted to selectively activate the converter, based on the digital output signal from the comparator. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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- 8. A method of controlling an electronic pen based on an analog measuring signal from a force sensor associated with a pen stem of the pen, the analog measuring signal representative of a force of application of the electronic pen to a surface, comprising the steps of comparing the analog measuring signal with a fixed reference signal, and selectively, based on the comparison, initiating an analog-to-digital converter to convert the analog measuring signal to a sequence of digital force values.
Specification