Stylus, pressure detecting system and driving method thereof

Inactive Publication Date: 2013-09-26
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0023]Controlling the amplitude ratio might include changing an amplitude of only one of the signals of the first and second frequencies to control the amplitude ratio of the signals.
[0024]Controllin

Problems solved by technology

However, because the frequency of the signal emitted from the stylus is continuously changed, a frequency detection operation (for example,

Method used

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  • Stylus, pressure detecting system and driving method thereof
  • Stylus, pressure detecting system and driving method thereof
  • Stylus, pressure detecting system and driving method thereof

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Embodiment Construction

[0031]Hereinafter, certain exemplary embodiments of the present invention will be described with reference to the accompanying drawings. When a first element is described as being coupled to a second element, the first element may be directly coupled to the second element, or may be indirectly coupled to the second element via one or more other elements. Further, some elements that are not essential to the complete understanding of the embodiments of the present invention are omitted for clarity. Also, like reference numerals refer to like elements throughout.

[0032]Specific matters of other exemplary embodiments will be included in the detailed description and the accompanying drawings. Aspects of embodiments of the present invention, and methods to achieve such aspects, will be elucidated from exemplary embodiments described below in detail with reference to the accompanying drawings. However, the present invention is not limited to the exemplary embodiments disclosed below, but ma...

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Abstract

A stylus includes a pressure detector for detecting applied pressure, a first signal generator for generating a signal of a first frequency, a second signal generator for generating a signal of a second frequency, and a controller for adjusting at least one of the first and second signal generators to control an amplitude ratio of the signal of the first frequency to the signal of the second frequency according to the applied pressure detected by the pressure detector.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority to and the benefit of Korean Patent Application No. 10-2012-0030587, filed on Mar. 26, 2012, in the Korean Intellectual Property Office, the entire content of which is incorporated herein by reference.BACKGROUND[0002]1. Field[0003]Embodiments of the present invention relate to a stylus, and to a pressure detecting system including a stylus and a driving method thereof.[0004]2. Description of Related Art[0005]Recently, a digitizer, a touch screen, or the like, which is capable of replacing a conventional input device such as a keyboard and a mouse, and which is capable of directly detecting a position contacted by a human's hand or an object, has been widely used. In addition, the use of a stylus system capable of performing more elaborate, or more accurate, input (as compared to a system using the human hand) tends to increase.[0006]To perform various operations corresponding to writing pressure of the styl...

Claims

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Application Information

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IPC IPC(8): G06F3/033G06F3/041
CPCG06F3/038G06F3/03545G06F2203/0384G06F3/0383G06F3/04162G06F3/033G06F2203/04105
Inventor AHN, SOON-SUNGJANG, HYOUNG-WOOK
Owner SAMSUNG DISPLAY CO LTD
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