Title:
SLIDE TYPE CELLULAR PHONE TERMINAL, ECHO CANCELING METHOD, AND CELLULAR PHONE TERMINAL
Document Type and Number:
Japanese Patent JP2010041199
Kind Code:
A
Abstract:
To achieve a slide type cellular phone terminal of a thin shape which certainly reduces echo which occurs at the time of speech.
The cellular phone terminal has a first housing 110 with a microphone 111, and a second housing 130 which is connected to the first housing 110 so as to be freely slidable relative to the first housing 110, and has a dynamic type receiver 132 which generates sound in a front side of an opposite side of the surface facing the first housing 110. The second housing 130 has a tone guiding unit 142 which gives vibration of an inverse phase for a tone phase of the receiver 132 on a surface facing the first housing 110, and cancels the vibration from the receiver 132.
More Like This:
WO/2009/068927 | ELECTRONIC DEVICE ACOUSTIC CHAMBER |
Inventors:
SUZUKI SHINYA
Application Number:
JP2008199729A
Publication Date:
February 18, 2010
Filing Date:
August 01, 2008
Export Citation:
Assignee:
PANASONIC CORP
International Classes:
H04M1/03; H04M1/00; H04M1/02; H04M1/60; H04R3/02
Attorney, Agent or Firm:
Koichi Washida
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