Title:
DUAL-COIL WIRELESS PASSIVE ELECTROMAGNETIC PEN AND CONTROL CIRCUIT AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/232823
Kind Code:
A1
Abstract:
Disclosed is a control circuit for a dual-coil wireless passive electromagnetic pen. By adding a first coil only used for receiving an input signal and a second coil only used for transmitting an output signal, this ensures that signal transmission and signal reception can be carried out simultaneously without mutual interference, thereby preventing the need to continuously switch between signal transmission and signal reception, and thus, the problems of unstable signal transmission, low work efficiency, great difficulty in signal processing and poor anti-interference ability in traditional technical solutions are solved.
Inventors:
WAN LIFENG (CN)
Application Number:
PCT/CN2019/097304
Publication Date:
November 26, 2020
Filing Date:
July 23, 2019
Export Citation:
Assignee:
SHENZHEN UNIPEN TOUCH TECH CO LTD (CN)
International Classes:
H02J7/02; G06F3/0354
Foreign References:
| CN102221908A | 2011-10-19 | |||
| CN102221908A | 2011-10-19 | |||
| TWM526118U | 2016-07-21 | |||
| CN102662494A | 2012-09-12 | |||
| CN104793761A | 2015-07-22 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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