Title:
DUAL-COIL ANTENNA BOARD AND CONTROL CIRCUIT THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/232822
Kind Code:
A1
Abstract:
A control circuit of a dual-coil antenna board; by means of adding a transmit coil array only used to externally transmit power signals and a receiving coil array only used to receive input signals, the situation in which transmitting and receiving functions of coils are multiplexed is avoided, so that the transmitting of signals and the receiving of signals may be conducted simultaneously; and sufficient transmit power is provided to ensure the power supply of a stylus, input signals may be stably received and data may be acquired from the received input signals for a long time, thereby solving the problems in traditional technical solutions in which transmit power is insufficient, receiving signals are unstable and generated data deviation is large.
Inventors:
WAN LIFENG (CN)
Application Number:
PCT/CN2019/097303
Publication Date:
November 26, 2020
Filing Date:
July 23, 2019
Export Citation:
Assignee:
SHENZHEN UNIPEN TOUCH TECH CO LTD (CN)
International Classes:
H02J50/10; G06F3/046; H01Q7/00; H01Q21/00; H01Q23/00; H02J50/40; H02J50/80
Foreign References:
| CN102163115A | 2011-08-24 | |||
| CN102163115A | 2011-08-24 | |||
| CN101042626A | 2007-09-26 | |||
| CN103455232A | 2013-12-18 | |||
| CN102262494A | 2011-11-30 | |||
| CN1453741A | 2003-11-05 | |||
| US5557076A | 1996-09-17 | |||
| US6184864B1 | 2001-02-06 | |||
| JP2011215961A | 2011-10-27 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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