Invention Grant
US08351597B2 Electronic device, echo canceling method thereof, non-transitory computer readable medium, circuit substrate, and portable telephone terminal device
有权
电子设备，回波消除方法，非暂时计算机可读介质，电路基板和便携式电话终端设备
- Patent Title: Electronic device, echo canceling method thereof, non-transitory computer readable medium, circuit substrate, and portable telephone terminal device
- Patent Title (中): 电子设备，回波消除方法，非暂时计算机可读介质，电路基板和便携式电话终端设备
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Application No.: US11860819Application Date: 2007-09-25
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Publication No.: US08351597B2Publication Date: 2013-01-08
- Inventor: Yukihiro Sato , Nobuhiro Mochizuki
- Applicant: Yukihiro Sato , Nobuhiro Mochizuki
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Fujitsu Patent Center
- Priority: JP2006-260196 20060926
- Main IPC: H04M1/00
- IPC: H04M1/00 ; H04M9/00 ; H04M9/08 ; H03G3/00
Abstract:
The present invention relates to an electronic device that can output received voice and input transmitted voice at the same time and enhances a suppression function for echo due to the received voice sneaking into the transmitted voice. An electronic device (e.g., portable telephone terminal device) outputs the received voice from a voice output unit (speaker), inputs the transmitted voice through a voice input unit (microphone), and includes an echo canceller unit that subtracts a pseudo echo signal for the received voice from the transmitted voice to suppress an echo component in the transmitted voice and a controlling unit that changes an echo suppression amount of the echo canceller unit in accordance with the received voice volume.
Public/Granted literature
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