JPH03103692U - - Google Patents
Info
- Publication number
- JPH03103692U JPH03103692U JP1296090U JP1296090U JPH03103692U JP H03103692 U JPH03103692 U JP H03103692U JP 1296090 U JP1296090 U JP 1296090U JP 1296090 U JP1296090 U JP 1296090U JP H03103692 U JPH03103692 U JP H03103692U
- Authority
- JP
- Japan
- Prior art keywords
- output
- microphone unit
- phase
- circuit
- microphone
- 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
- 230000002457 bidirectional effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Stereophonic Arrangements (AREA)
Description
第１図はこの考案の実施例を示すブロツク図、
第２図はこの考案の他の実施例を示すブロツク図
、第３図はこの考案の構造例を示す分解斜視図、
第４図は従来のＭＳ方式ステレオマイクロホンを
示すブロツク図、第５図は従来の二次音圧傾度マ
イクロホンを示すブロツク図である。
Figure 1 is a block diagram showing an embodiment of this invention.
FIG. 2 is a block diagram showing another embodiment of this invention, and FIG. 3 is an exploded perspective view showing a structural example of this invention.
FIG. 4 is a block diagram showing a conventional MS type stereo microphone, and FIG. 5 is a block diagram showing a conventional secondary sound pressure gradient microphone.
Claims (1)
ずらされて設けられ、同一方向を向いた単一指向
性の第２マイクロホンユニツトと、 その第１マイクロホンユニツトの出力が供給さ
れる位相反転回路と、 上記第１マイクロホンユニツトの指向方向に対
し、直角方向を向いた双指向性の第３マイクロホ
ンユニツトと、 その第３マイクロホンユニツトの出力が供給さ
れ、正相出力と逆相出力とを出力する位相分割回
路と、 上記第２マイクロホンユニツトの出力と上記位
相反転回路の出力とを合成する合成回路と、 上記第１、第２マイクロホンユニツトの一方の
出力を上記合成回路から切り離して上記位相分割
回路の二つの出力とそれぞれ合成するように供給
する切替えスイツチと、 を具備するステレオズームマイクロホン。[Claims for Utility Model Registration] A unidirectional first microphone unit; a unidirectional second microphone unit that is provided front and back with respect to the first microphone unit and faces the same direction; , a phase inversion circuit to which the output of the first microphone unit is supplied; a bidirectional third microphone unit oriented in a direction perpendicular to the directivity direction of the first microphone unit; and an output of the third microphone unit. a phase dividing circuit which is supplied with a phase shifter and outputs a positive phase output and a negative phase output; a combining circuit which combines the output of the second microphone unit and the output of the phase inversion circuit; and the first and second microphone units. a switch for separating one output from the combining circuit and supplying the output to be combined with the two outputs of the phase splitting circuit, respectively;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990012960U JP2511650Y2 (en) | 1990-02-13 | 1990-02-13 | Stereo microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990012960U JP2511650Y2 (en) | 1990-02-13 | 1990-02-13 | Stereo microphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03103692U true JPH03103692U (en) | 1991-10-28 |
| JP2511650Y2 JP2511650Y2 (en) | 1996-09-25 |
Family
ID=31516403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990012960U Expired - Lifetime JP2511650Y2 (en) | 1990-02-13 | 1990-02-13 | Stereo microphone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2511650Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006186758A (en) * | 2004-12-28 | 2006-07-13 | Sony Corp | Microphone device |
| JP2007050183A (en) * | 2005-08-19 | 2007-03-01 | Nakatoku Kogyo Kk | Mascara brush with comb |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5873693U (en) * | 1981-11-14 | 1983-05-18 | 株式会社東芝 | microphone |
| JPS6115668U (en) * | 1984-07-02 | 1986-01-29 | アイシン精機株式会社 | Brake hydraulic pressure control device for vehicles |
-
1990
- 1990-02-13 JP JP1990012960U patent/JP2511650Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5873693U (en) * | 1981-11-14 | 1983-05-18 | 株式会社東芝 | microphone |
| JPS6115668U (en) * | 1984-07-02 | 1986-01-29 | アイシン精機株式会社 | Brake hydraulic pressure control device for vehicles |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006186758A (en) * | 2004-12-28 | 2006-07-13 | Sony Corp | Microphone device |
| JP2007050183A (en) * | 2005-08-19 | 2007-03-01 | Nakatoku Kogyo Kk | Mascara brush with comb |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2511650Y2 (en) | 1996-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |