Title:
SIGNAL TRANSMISSION METHOD, ACTIVE PEN, SIGNAL RECEPTION METHOD AND TOUCH SCREEN
Document Type and Number:
WIPO Patent Application WO/2019/037371
Kind Code:
A1
Abstract:
The present invention relates to the technical field of signal processing, and provides a signal transmission method, an active pen, a signal reception method and a touch screen. The signal transmission method comprises: respectively performing amplitude modulation on n binary codes representing information to be transmitted, so as to obtain n sequentially arranged coded amplitude modulation signals, n being an integer greater than 1; continuously transmitting the n sequentially arranged coded amplitude modulation signals, wherein coded amplitude modulation signals having odd arrangement sequence numbers are transmitted via a preset first frequency, and coded amplitude modulation signals having even arrangement sequence numbers are transmitted via a preset second frequency. The n coded amplitude modulation signals are continuously transmitted via the first frequency and the second frequency in an alternating manner so as to eliminate fault tolerance time between the coded amplitude modulation signals, reduce the transmission time for a same number of coded amplitude modulation signals, correspondingly reduce the time required for a screen end to complete coded amplitude modulation signal detection, and thereby increase the report rate and improve the touch screen anti-interference capability.
Inventors:
LI HAI (CN)
Application Number:
PCT/CN2017/119012
Publication Date:
February 28, 2019
Filing Date:
December 27, 2017
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
G06F3/0354; G06F3/044
Foreign References:
CN102902383A | 2013-01-30 | |||
CN107077241A | 2017-08-18 | |||
CN106954266A | 2017-07-14 | |||
US20150358481A1 | 2015-12-10 |
Other References:
None
Attorney, Agent or Firm:
SHANGHAI CHENHAO INTELLECTUAL PROPERTY LAW FIRM GENERAL PARTNERSHIP (CN)
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