Title:
METHOD AND DEVICE FOR REDUCING AUDIO FREQUENCY INTERFERENCE
Document Type and Number:
WIPO Patent Application WO/2009/140792
Kind Code:
A1
Abstract:
A method for reducing audio frequency interference is disclosed. The audio frequency is interfered by a noise pulse, which is a repeatability similarity pulse and includes a center pulse and an extending pulse. The method includes: generating a templet pulse to represent the noise pulse; and implementing the following steps (A), (B), (C) or the combination of them to suppress the noise pulse: (A) subtracting the templet pulse from the audio frequency to generate a first processing audio frequency; (B) at least spanning the center pulse of the noise pulse so as to interpolate the first processing audio frequency or the audio frequency to generate a second processing audio frequency; and/or (C) making a noise suppression technology process the second processing audio frequency or the audio frequency.
Inventors:
LIN HAN (CN)
Application Number:
PCT/CN2008/000980
Publication Date:
November 26, 2009
Filing Date:
May 21, 2008
Export Citation:
Assignee:
LIN HAN (CN)
International Classes:
H04B15/02
Foreign References:
| CA2326948A1 | 2002-05-24 | |||
| CN1225104C | 2005-10-26 | |||
| CN1192359C | 2005-03-09 | |||
| JPH11154000A | 1999-06-08 |
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (Haidian, Beijing 5, CN)
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