IDENTIFIABLE STYLUS
First Claim
Patent Images
1. A stylus comprising;
- a shaft;
a conductive tip at a distal end of the shaft; and
control circuitry coupled to the conductive tip and configured to generate a modulated signal at the conductive tip to identify the stylus.
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Accused Products
Abstract
A stylus is disclosed. The stylus includes a shaft; a conductive tip at a distal end of the shaft; and control circuitry coupled to the conductive tip and configured to generate a modulated signal at the conductive tip to identify the stylus. The stylus can also include a switch coupled between the conductive tip and the shaft. The control circuitry can be further configured to control the switch to modulate a conductive path between the conductive tip and the shaft to generate the modulated signal.
276 Citations
25 Claims
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1. A stylus comprising;
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a shaft; a conductive tip at a distal end of the shaft; and control circuitry coupled to the conductive tip and configured to generate a modulated signal at the conductive tip to identify the stylus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for generating a signature for identifying an object on a touch panel, comprising:
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modulating a tip of the object, the tip located on the object for contacting the touch panel; wherein the modulation identifies the object as being other than a finger. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A non-transitory computer-readable storage medium storing computer-readable program instructions executable to perform a method for generating a signature for identifying an object on a touch panel, the method comprising:
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modulating a tip of the object, the tip located on the object for contacting the touch panel; wherein the modulation identifies the object as being other than a finger. - View Dependent Claims (22, 23, 24)
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25. A method for identifying a touch object on a touch panel, comprising:
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detecting a modulated touch signal from the touch object; and determining whether the modulated touch signal has a frequency above a predetermined value.
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Specification