基本信息:
- 专利标题： 적응형 잡음 제거 시스템에서의 다운링크 톤 검출 및 ２차 경로 응답 모델의 적응
- 专利标题（英）：Downlink tone detection and adaption of a secondary path response model in an adaptive noise canceling system
- 专利标题（中）：自适应噪声消除系统中的二次路径响应模式的下行音调检测和自适应
- 申请号：KR1020147034411 申请日：2013-04-24
- 公开(公告)号：KR1020150008459A 公开(公告)日：2015-01-22
- 发明人： 조우,다용 , 루,양 , 헨드릭스,존,디. , 앨더슨,제프리 , 밀러,안토니오,존 , 용,친 , 카마쓰,가우담,데벤드라
- 申请人： 씨러스 로직 인코포레이티드
- 申请人地址： *** W. *th Street Austin, TX *****, U.S.A.
- 专利权人： 씨러스 로직 인코포레이티드
- 当前专利权人： 씨러스 로직 인코포레이티드
- 当前专利权人地址： *** W. *th Street Austin, TX *****, U.S.A.
- 代理人： 장훈
- 优先权： US13/729,141 2012-12-28; US61/645,333 2012-05-10; US61/701,187 2012-09-14
- 国际申请： PCT/US2013/037942 2013-04-24
- 国际公布： WO2013169483 2013-11-14
- 主分类号： G10K11/178
- IPC分类号： G10K11/178
Adaptive Noise Cancellation (ANC) circuit generates a squelch signal adaptively from a reference microphone signal to be inserted into the wall outlet or the transducer output so as to cause the removal of an audio sound from the surroundings. Error microphone closest to the speaker for providing an error signal. Secondary path estimation adaptive filter from the electrical noise reduction circuit through the transducer-to estimate the acoustic path allows the audio source to be removed from the error signal. Tone in the source audio, such as a remote Darlington are for the start of the phone call exists, on the downlink audio, the accumulated tone duration and a non-detected by the tone detector using a Silence (non-silence) hangover count, 2 primary path estimation adaptation of the adaptive filter is stopped in order to avoid adaptation to the tones. Adaptation of the adaptive filter is then, sequence (sequencing), and therefore the secondary path of any interruption of the adaptive filter response is removed before allowing to adapt the noise preventing generation filter.
公开/授权文献:
- KR102039866B1 적응형 잡음 제거 시스템에서의 다운링크 톤 검출 및 ２차 경로 응답 모델의 적응 公开/授权日：2019-11-05
信息查询:
EspacenetIPC结构图谱:
| G | 物理 |
| --G10 | 乐器；声学 |
| ----G10K | 发声器械（发生玩具入A63H5/00；乐器或其配件见有关各小类，例如G10D）；不包含在其他类目中的声学器械 |
| ------G10K11/00 | 声音的发送、传导或定向的一般方法或器械；防护或减小噪声或其他次声波、声波或超声波的一般方法或器械 |
| --------G10K11/16 | .声音的阻尼方法或装置 |
| ----------G10K11/175 | ..利用干涉效应；掩蔽声音 |
| ------------G10K11/178 | ...通过电声方法再生反相的原始声波 |