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Patent Searching and Data


Title:
容量性タッチセンサ内の静電スタイラスのためのシステム
Document Type and Number:
Japanese Patent JP5845264
Kind Code:
B2
Abstract:
Systems are described for transmitting and receiving signals in an active stylus for a capacitive touch sensor, for which the systems have at least one circuit for receiving a current from an electrode and for transmitting a voltage onto the electrode. The systems include components for receiving the current in a receiving mode, a switch, and a switchmode power supply circuit having at least a transformer and a diode, for which the diode is coupled to the transformer. In a transmission mode, there is means for electrically isolating at least some of the components configured for receiving the current in the receiving mode from the voltage formed across the stray capacitance. In the receiving mode, there is a means for electrically isolating at least some of the components configured for receiving the current in the receiving mode from an inductance of the transformer in the switchmode power supply circuit.

Inventors:
Jonathan Bestsue
Jefferson Wy Han
Application Number:
JP2013527155A
Publication Date:
January 20, 2016
Filing Date:
August 29, 2011
Export Citation:
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Assignee:
Perceptive Pixel Incorporated
International Classes:
G06F3/03; G06F3/041; G06F3/044
Domestic Patent References:
JP61292733A
JP2007183809A
JP2007533044A
Foreign References:
US20100252335
US20110122087
US7612767
US5241303
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Shigeo Takeuchi
Osamu Yamamoto
Tadashi Ueda
Motoharu Nakanishi
Kenichi Torii
Shogo Nakamura
Omaki Ayako
Ryota Suematsu
Naoki Ofusa
Hideo Tanaka