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Title:
METHOD AND APPARATUS FOR IMPROVING CALL QUALITY OF HANDS-FREE CALL DEVICE, AND HANDS-FREE CALL DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/000585
Kind Code:
A1
Abstract:
Disclosed are a method and apparatus for improving the call quality of a hands-free call device, and a hands-free call device. The hands-free call device comprises a transmitter end composed of a main microphone and an auxiliary microphone. The method comprises: scanning within an initial first collection angle of a transmitter end; after a voice feature signal is scanned within the first collection angle, according to a direction of the voice feature signal, determining a second collection angle smaller than the first collection angle within the first collection angle; and calibrating the transmitter end to a direction determined by the second collection angle. In this method, pickup is conducted by using a relatively small voice projection angle, so that the interference from an ambient noise can be greatly reduced, to achieve the purpose of improving the transmitter signal to noise ratio, so that the directivity of a voice in a hands-free call device during a call is more clear, thereby improving the call quality.

Inventors:
HUA, Yang (5FNo.3 Building Fortune Center, No.18 Qinling Road Laoshan Distric, Qingdao City Shandong 1, 266061, CN)
ZHOU, Hongwei (5FNo.3 Building Fortune Center, No.18 Qinling Road Laoshan Distric, Qingdao City Shandong 1, 266061, CN)
Application Number:
CN2015/082634
Publication Date:
January 07, 2016
Filing Date:
June 29, 2015
Export Citation:
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Assignee:
QINGDAO GOERTEK TECHNOLOGY CO.,LTD. (5FNo.3 Building Fortune Center, No.18 Qinling Road Laoshan District, Qingdao City Shandong 1, 266061, CN)
International Classes:
H04M1/60; G01L21/02; H04M1/725
Foreign References:
CN104052851A2014-09-17
CN103475974A2013-12-25
CN102111697A2011-06-29
CN103079148A2013-05-01
CN103634721A2014-03-12
Other References:
See also references of EP 3089431A4
Attorney, Agent or Firm:
BEIJING LONGAN LAW FIRM (Room 188´╝îBeijing International Club, 21 Jianguomenwai Street Chaoyang District, Beijing 0, 100020, CN)
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