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Title:
METHOD FOR DETERMINING FILTER COEFFICIENT AND DEVICE THEREFOR, AND TERMINAL
Document Type and Number:
WIPO Patent Application WO/2019/051841
Kind Code:
A1
Abstract:
Provided are a method for determining a filter coefficient and device therefor, and a terminal. The method for determining a filter coefficient comprises: determining an estimated output of the filter according to an input signal of the filter at the current moment; determining an output error of the filter according to a target output and an estimated output of the filter; determining, according to the output error of the filter and a pre-determined first threshold, whether the current filter coefficient needs to be corrected; if it is determined that the current filter coefficient needs to be corrected, correcting the current filter coefficient to determine the filter coefficient at the next moment; and if it is determined that the current filter coefficient does not need to be corrected, directly using the current filter coefficient as the filter coefficient of the next moment, and thereby completely filtering out the interference or filtering out the interference to the greatest possible extent during filtering.

Inventors:
ZENG, Duan (Floor 13, Phase B Tengfei Industrial Building Futian Free Trade Zon, Shenzhen Guangdong 5, 518045, CN)
WANG, Xinshan (Floor 13, Phase B Tengfei Industrial Building Futian Free Trade Zon, Shenzhen Guangdong 5, 518045, CN)
LI, Guoliang (Floor 13, Phase B Tengfei Industrial Building Futian Free Trade Zon, Shenzhen Guangdong 5, 518045, CN)
YANG, Ke (Floor 13, Phase B Tengfei Industrial Building Futian Free Trade Zon, Shenzhen Guangdong 5, 518045, CN)
Application Number:
CN2017/102108
Publication Date:
March 21, 2019
Filing Date:
September 18, 2017
Export Citation:
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Assignee:
SHENZHEN GOODIX TECHNOLOGY CO., LTD. (Floor 13, Phase B Tengfei Industrial Building Futian Free Trade Zon, Shenzhen Guangdong 5, 518045, CN)
International Classes:
H03H17/02
Foreign References:
CN103078640A2013-05-01
CN105635008A2016-06-01
CN106157965A2016-11-23
JP2016090799A2016-05-23
Other References:
SHYNK, J.J.: "Adaptive IIR Filtering", IEEE ASSP MAGAZIN, 30 April 1998 (1998-04-30), XP011437202
Attorney, Agent or Firm:
BEIJING HEADSTAY INTELLECTUAL PROPERTY AGENCY (Room 5A1-2, Huajie Plaza Building No.1, Dazhongsi No.13 Haidian District, Beijing 8, 100098, CN)
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