JPH0186732U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１〜６図は本考案の第一実施例を示し、第１
図はワイヤレスヘツドホンの電気回路ブロツク図
、第２図はワイヤレスヘツドホンの一部破断正面
図、第３図は第２図を左側方から見た電源用ケー
スの一部破断側面図、第４図は同じく右側方から
見た受信回路用ケースの一部破断側面図、第５図
は送信器の一部破断正面図、第６図は送信器の電
気回路ブロツク図であり、第７，８図は本考案の
第二実施例を示し、第７図はワイヤレスイヤホン
の一部破断正面図、第８図は電気回路ブロツク図
であり、第９図は第一実施例の別例を示す電気回
路ブロツク図である。 ３……電源としての電池、７……左側スピーカ
、１５……受信回路、１６……増幅回路、１８…
…右側スピーカ、２０，２１……電源線、２２…
…制御信号線、４２ｂ……シールド線、Ａ……送
信器。 1 to 6 show the first embodiment of the present invention, and the first embodiment
The figure shows the electrical circuit block diagram of the wireless headphone, Figure 2 is a partially cutaway front view of the wireless headphone, Figure 3 is a partially cutaway side view of the power supply case seen from the left side of Figure 2, and Figure 4 is a partially cutaway side view of the power supply case. Similarly, FIG. 5 is a partially cutaway side view of the receiving circuit case seen from the right side, FIG. 5 is a partially cutaway front view of the transmitter, FIG. 6 is a block diagram of the electric circuit of the transmitter, and FIGS. 7 and 8 are A second embodiment of the present invention is shown, FIG. 7 is a partially cutaway front view of a wireless earphone, FIG. 8 is an electric circuit block diagram, and FIG. 9 is an electric circuit block diagram showing another example of the first embodiment. It is a diagram. 3... Battery as power supply, 7... Left speaker, 15... Receiving circuit, 16... Amplifying circuit, 18...
...Right speaker, 20, 21...Power line, 22...
...Control signal line, 42b...Shield wire, A...Transmitter.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 送信器Ａにより送信された電波をアンテナを介
して受信する受信回路１５と、同受信回路１５か
ら出力される出力信号を増幅する増幅回路１６と
、同増幅回路１６から出力される出力信号を音声
信号に変換するスピーカ７，１８と、これら受信
回路１５及び増幅回路１６を駆動する電源３とを
備え、前記増幅回路１６とスピーカ７，１８とを
接続する制御信号線２２を囲むシールド線４２ｂ
、又は前記電源３と増幅回路１６とを接続する電
源線２０，２１のうちの１本をアンテナと共用し
たことを特徴とするワイヤレス受信器。 A receiving circuit 15 that receives radio waves transmitted by the transmitter A via an antenna, an amplifying circuit 16 that amplifies the output signal output from the receiving circuit 15, and an amplifying circuit 16 that amplifies the output signal output from the amplifying circuit 16. A shielded wire 42b that includes speakers 7 and 18 that convert into signals, and a power source 3 that drives these receiving circuit 15 and amplifier circuit 16, and surrounds a control signal line 22 that connects the amplifier circuit 16 and speakers 7 and 18.
, or a wireless receiver characterized in that one of the power supply lines 20 and 21 connecting the power supply 3 and the amplifier circuit 16 is also used as an antenna.