JPS6452393U - - Google Patents
Info
- Publication number
- JPS6452393U JPS6452393U JP14747687U JP14747687U JPS6452393U JP S6452393 U JPS6452393 U JP S6452393U JP 14747687 U JP14747687 U JP 14747687U JP 14747687 U JP14747687 U JP 14747687U JP S6452393 U JPS6452393 U JP S6452393U
- Authority
- JP
- Japan
- Prior art keywords
- output
- microphones
- microphone
- delay
- equalizer
- 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
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Description
図面は本考案の単一指向性マイクロホンを説明
するもので、第1図は動作原理を説明する略図、
第2図は方向特性を示す線図、第3図は周波数特
性を示す線図、第4図は回路図、第5図は成品の
周波数特性を例示する線図である。
1:第一の無指向性マイクロホン、2:第二の
無指向性マイクロホン、3:音波、4:基線、5
:ローパスフイルタ、6:遅延回路、7:差動増
幅器、8:イコライザ、9:出力端子。
The drawings are for explaining the unidirectional microphone of the present invention, and FIG. 1 is a schematic diagram for explaining the operating principle.
FIG. 2 is a diagram showing directional characteristics, FIG. 3 is a diagram showing frequency characteristics, FIG. 4 is a circuit diagram, and FIG. 5 is a diagram illustrating frequency characteristics of the product. 1: First omnidirectional microphone, 2: Second omnidirectional microphone, 3: Sound wave, 4: Baseline, 5
: Low pass filter, 6: Delay circuit, 7: Differential amplifier, 8: Equalizer, 9: Output terminal.
Claims (1)
間隔を置いて並べ、一方のマイクロホン2には、
出力を小時間遅らせる遅延回路を設け、両マイク
ロホン1,2の出力の差をイコライザ8を介して
取出して出力とすることを特徴とする単一指向性
マイクロホン。 Two omnidirectional microphones 1 and 2 with the same performance are arranged at a distance, and one microphone 2 has a
A unidirectional microphone characterized in that a delay circuit is provided to delay the output for a short period of time, and the difference between the outputs of both microphones 1 and 2 is taken out via an equalizer 8 and used as an output.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14747687U JPS6452393U (en) | 1987-09-29 | 1987-09-29 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14747687U JPS6452393U (en) | 1987-09-29 | 1987-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6452393U true JPS6452393U (en) | 1989-03-31 |
Family
ID=31417910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14747687U Pending JPS6452393U (en) | 1987-09-29 | 1987-09-29 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6452393U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61150600A (en) * | 1984-12-20 | 1986-07-09 | エイ・ティ・アンド・ティ・コーポレーション | Unidirectional second order gradient microphone |
-
1987
- 1987-09-29 JP JP14747687U patent/JPS6452393U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61150600A (en) * | 1984-12-20 | 1986-07-09 | エイ・ティ・アンド・ティ・コーポレーション | Unidirectional second order gradient microphone |
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