JPH0476797U - - Google Patents
Info
- Publication number
- JPH0476797U JPH0476797U JP12143190U JP12143190U JPH0476797U JP H0476797 U JPH0476797 U JP H0476797U JP 12143190 U JP12143190 U JP 12143190U JP 12143190 U JP12143190 U JP 12143190U JP H0476797 U JPH0476797 U JP H0476797U
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- memory
- enabled
- performs training
- cancel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000015654 memory Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Description
第１図は本考案の実施例を示すブロツク図、第
２図は本案を実施する上での話者とマイクの配置
を示す図、第３図は従来例を示すブロツク図であ
る。図において、１は受信入力ＲＩＮ、２は信号
発生装置、３はＴＲＳＷ、４は適応フイルタ、５
は拡声スピーカ、６ａ〜６ｄはマイク、７は音声
検知回路、８ａ〜８ｄはマイクＯＮスイツチ、９
ａ〜９ｄは音声検知スイツチ、１０は加算回路、
１１は送信入力ＳＩＮ、１２ａ〜１２ｄはメモリ
、１３ａ〜１３ｄはマイクＯＮスイツチ、１４は
送信出力ＳＯＵＴである。なお、図中、同一符号
は同一又は相当部分を示す。
FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing the arrangement of a speaker and a microphone in implementing the present invention, and FIG. 3 is a block diagram showing a conventional example. In the figure, 1 is a reception input RIN, 2 is a signal generator, 3 is a TRSW, 4 is an adaptive filter, and 5
are loudspeakers, 6a to 6d are microphones, 7 is a voice detection circuit, 8a to 8d are microphone ON switches, 9
a to 9d are audio detection switches, 10 is an addition circuit,
11 is a transmission input SIN, 12a to 12d are memories, 13a to 13d are microphone ON switches, and 14 is a transmission output SOUT. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
により、各々のマイクを有効、無効とするスイツ
チと各マイクを強制的に有効とするスイツチと、
各々のマイクに対応するメモリを備え、個々のマ
イクを単独に有効としてトレーニングを順次行い
、個々のマイクを単独に有効としてトレーニング
を順次行い、個々のマイクに対するキヤンセルパ
ラメータをメモリに保持し、各マイクに対して音
声検知を行ない話者の音声を検知したマイクのみ
を有効として、その有効なマイクに対応するメモ
リに保持しているキヤンセルパラメータを初期値
として適応制御させ、そのマイクが無効になつた
とき、キヤンセルパラメータをそのメモリに保持
し、次にそのマイクが有効となつたときの初期値
とすることを特徴とするエコーキヤンセラー。 A switch for enabling and disabling each microphone and a switch for forcibly enabling each microphone using an audio detection circuit for multiple microphones and its output;
It is equipped with a memory corresponding to each microphone, performs training sequentially with each microphone enabled individually, performs training sequentially with each microphone enabled individually, holds cancel parameters for each microphone in memory, and performs training sequentially with each microphone enabled individually. The system detects the voice of the speaker, activates only the microphone that detects the speaker's voice, and adaptively controls the cancel parameter stored in the memory corresponding to the valid microphone as an initial value, so that the microphone becomes invalid. an echo canceller, wherein the cancel parameter is retained in its memory and is set as an initial value the next time the microphone is enabled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12143190U JPH0476797U (en) | 1990-11-19 | 1990-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12143190U JPH0476797U (en) | 1990-11-19 | 1990-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0476797U true JPH0476797U (en) | 1992-07-03 |
Family
ID=31869288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12143190U Pending JPH0476797U (en) | 1990-11-19 | 1990-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0476797U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007096389A (en) * | 2005-09-27 | 2007-04-12 | Yamaha Corp | Recursive noise canceller |
| JP2007150586A (en) * | 2005-11-25 | 2007-06-14 | Yamaha Corp | Feedback sound eliminating apparatus |
| JP2013066079A (en) * | 2011-09-17 | 2013-04-11 | Yamaha Corp | Covering sound elimination device |
-
1990
- 1990-11-19 JP JP12143190U patent/JPH0476797U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007096389A (en) * | 2005-09-27 | 2007-04-12 | Yamaha Corp | Recursive noise canceller |
| JP2007150586A (en) * | 2005-11-25 | 2007-06-14 | Yamaha Corp | Feedback sound eliminating apparatus |
| JP2013066079A (en) * | 2011-09-17 | 2013-04-11 | Yamaha Corp | Covering sound elimination device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2337250A1 (en) | Hearing aid system and hearing aid for in-situ fitting | |
| JP2582147Y2 (en) | Telephone | |
| JPH033021Y2 (en) | ||
| JPH02147993U (en) | ||
| JPH0275856U (en) | ||
| JPS6429095A (en) | Echo canceling device | |
| JPH0221847U (en) | ||
| JPS6418862U (en) | ||
| JPH0419848U (en) | ||
| JPH0322451U (en) | ||
| JPH0223181U (en) | ||
| JPS6288465A (en) | Telephone set | |
| JPS6217264U (en) | ||
| JPH0419851U (en) | ||
| JPH0459898U (en) | ||
| JPH0438148U (en) | ||
| JPH0466847U (en) | ||
| JPH0322439U (en) | ||
| JPS63192749U (en) | ||
| JPH03107832U (en) | ||
| JPH0353058U (en) | ||
| JPH0471049U (en) | ||
| JPH0453343U (en) | ||
| JPH01103946U (en) | ||
| JPS61265943A (en) | Hand-free telephone set |