JPH01170047U - - Google Patents
Info
- Publication number
- JPH01170047U JPH01170047U JP6273788U JP6273788U JPH01170047U JP H01170047 U JPH01170047 U JP H01170047U JP 6273788 U JP6273788 U JP 6273788U JP 6273788 U JP6273788 U JP 6273788U JP H01170047 U JPH01170047 U JP H01170047U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- microphone
- output
- handset
- output signal
- 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
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Mobile Radio Communication Systems (AREA)
Description
第１図は、この考案の好適な実施例を示した回
路の電気ブロツク図である。第２図は、第１図に
示す回路を内蔵した受話器を装着したハンドルパ
ツドの略正面図である。第３図は、前記受話器の
斜視図である。第４図は、第３図に示す受話器の
側面図である。
１……受話器、２……ハンドルパツド、１１…
…第１マイクロフオン、１２……第２マイクロフ
オン、１３……演算回路、１４……切換回路、１
５……送信回路。
FIG. 1 is an electrical block diagram of a circuit showing a preferred embodiment of this invention. 2 is a schematic front view of a handle pad equipped with a telephone receiver incorporating the circuit shown in FIG. 1; FIG. FIG. 3 is a perspective view of the handset. FIG. 4 is a side view of the telephone receiver shown in FIG. 3. 1...Telephone receiver, 2...Handle pad, 11...
...First microphone, 12...Second microphone, 13...Arithmetic circuit, 14...Switching circuit, 1
5... Transmission circuit.
Claims (1)
自動車電話に於いて、前記受話器に互いに相反し
た方向に設置した第１及び第２マイクロフオンと
、前記第１及び第２マイクロフオンの出力部に接
続するとともに第１マイクロフオンの出力信号を
第２マイクロフオンの出力信号によつて加減算す
る演算回路と、該演算回路及び第２マイクロフオ
ンの出力部に接続し、両者からの信号を所望条件
に応じ切替える切換回路と、該切換回路の出力側
に接続された送信回路とで構成されたことを特徴
とする自動車電話。 In a car phone equipped with a detachable handset, the handle pad is connected to first and second microphones installed in opposite directions on the handset, and to the output parts of the first and second microphones. An arithmetic circuit that adds or subtracts the output signal of the first microphone with the output signal of the second microphone, and a switch that is connected to the arithmetic circuit and the output section of the second microphone and switches the signals from both according to desired conditions. A car telephone comprising a circuit and a transmitting circuit connected to the output side of the switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6273788U JPH01170047U (en) | 1988-05-12 | 1988-05-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6273788U JPH01170047U (en) | 1988-05-12 | 1988-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01170047U true JPH01170047U (en) | 1989-11-30 |
Family
ID=31288300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6273788U Pending JPH01170047U (en) | 1988-05-12 | 1988-05-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01170047U (en) |
-
1988
- 1988-05-12 JP JP6273788U patent/JPH01170047U/ja active Pending