JPH0386696U - - Google Patents
Info
- Publication number
- JPH0386696U JPH0386696U JP14915389U JP14915389U JPH0386696U JP H0386696 U JPH0386696 U JP H0386696U JP 14915389 U JP14915389 U JP 14915389U JP 14915389 U JP14915389 U JP 14915389U JP H0386696 U JPH0386696 U JP H0386696U
- Authority
- JP
- Japan
- Prior art keywords
- speaker
- sub
- sound
- cancel
- space
- 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.)
- Granted
Links
- 230000030279 gene silencing Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 1
Landscapes
- Headphones And Earphones (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
第１図は本考案第１実施例のアクテイブ・ノイ
ズ・キヤンセラーの構成を示す全体図、第２図は
第１実施例アクテイブ・ノイズ・キヤンセラーに
よるキヤンセル音並びに負キヤンセル音及び外部
騒音を示す特性図、第３図は本考案第１実施例の
アクテイブ・ノイズ・キヤンセラーの要部を示す
斜視図である。
ａ……キヤンセル音、Ｂ……消音スピーカ側空
間、Ｄ……副スピーカ側空間、１……消音スピー
カ、２……副スピーカ、３……モニタ用マイクロ
ホン、４……騒音キヤンセル回路、５ｂ……連通
路。
Fig. 1 is an overall diagram showing the configuration of the active noise canceller of the first embodiment of the present invention, and Fig. 2 is a characteristic diagram showing the cancel sound, negative cancel sound, and external noise by the active noise canceller of the first embodiment. , FIG. 3 is a perspective view showing the main parts of the active noise canceller according to the first embodiment of the present invention. a... Cancellation sound, B... Mute speaker side space, D... Sub speaker side space, 1... Mute speaker, 2... Sub speaker, 3... Monitoring microphone, 4... Noise cancel circuit, 5b... ...Connection path.
Claims (1)
ヤンセル音を放射させる消音スピーカと、 該消音スピーカのキヤンセル音放射側とは反対
側部分に対し、キヤンセル音と同位相の副キヤン
セル音を放射する副スピーカと、 両スピーカから放射される音が立ち消し合う位
置に配設されて消音対象音を含む外来音を入力す
るモニタ用マイクロホンと、 該モニタ用マイクロホンからの入力音に基づき
、前記消音スピーカに対しキヤンセル音を放射さ
せるキヤンセル音発生信号を出力すると共に、副
スピーカに対し副キヤンセル音を放射させる副キ
ヤンセル音発生信号を出力する騒音キヤンセル回
路と、 両スピーカの外周位置に設けられ、消音スピー
カの耳腔側の空間である消音スピーカ側空間と、
副スピーカの耳腔とは反対側の空間である副スピ
ーカ側空間とを連通する連通路と、 を備えていることを特徴とするアクテイブ・ノイ
ズ・キヤンセラー。[Scope of Claim for Utility Model Registration] A muffling speaker that emits cancelled sound with a phase opposite to that of the person to be muffled into the user's ear cavity; a sub-speaker that emits sub-cancelled sound in the same phase as the sub-speaker; a monitor microphone that is disposed at a position where the sounds emitted from both speakers cancel each other out and inputs external sound including the sound to be silenced; and the monitor microphone. a noise cancel circuit that outputs a cancel sound generation signal that causes the silencing speaker to emit a cancel sound based on the input sound from the noise canceling circuit, and outputs a sub cancel sound generation signal that causes the sub speaker to emit a sub cancel sound; a silencing speaker side space that is provided at the outer circumference of the speaker and is a space on the ear cavity side of the silencing speaker;
An active noise canceller comprising: a communication path that communicates with a space on the side of the sub-speaker, which is a space on the opposite side of the ear cavity of the sub-speaker;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989149153U JPH0753119Y2 (en) | 1989-12-25 | 1989-12-25 | Active noise canceller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989149153U JPH0753119Y2 (en) | 1989-12-25 | 1989-12-25 | Active noise canceller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0386696U true JPH0386696U (en) | 1991-09-02 |
| JPH0753119Y2 JPH0753119Y2 (en) | 1995-12-06 |
Family
ID=31695569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989149153U Expired - Lifetime JPH0753119Y2 (en) | 1989-12-25 | 1989-12-25 | Active noise canceller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0753119Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03169199A (en) * | 1989-11-28 | 1991-07-22 | Calsonic Corp | Active noise canceler |
| JPH03195295A (en) * | 1989-12-25 | 1991-08-26 | Calsonic Corp | Active noise canceller |
-
1989
- 1989-12-25 JP JP1989149153U patent/JPH0753119Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03169199A (en) * | 1989-11-28 | 1991-07-22 | Calsonic Corp | Active noise canceler |
| JPH03195295A (en) * | 1989-12-25 | 1991-08-26 | Calsonic Corp | Active noise canceller |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0753119Y2 (en) | 1995-12-06 |
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