WIRELESS MICROPHONE

Japanese Patent JPH10200980

A

To prevent a radiation signal level from degraded due to a fact that a user's hand which is grasping a grip carelessly covers an external antenna, by providing a wireless microphone with a grip end stopper.

A wireless microphone is provided with a voice input part 11, a grip part 12 in which a transmitting circuit part to convert the inputted voice into an electric signal, to amplify, to modulate and to transmit the converted signal is incorporated and an antenna part 14 which is extended by protruding downward from a lowermost part 13 of the grip part 12 and which radiates radio wave according to the inputted voice. The grip end stopper 15 is provided at a border between the lowermost part 13 of the grip part 12 and the antenna part 14. The grip end stopper 15 is formed as a collar shaped body with larger diameter than that in the lowermost part 13 all around the periphery at the border between the lowermost part 13 of the grip part 12 and the antenna part 14 and the user's hand is prevented from reaching the antenna part 14.

JP6121699	A speaker system, the control method, a program, and a recording medium
JP2023536987	In-vehicle woofer device and its design method
JP4345632	Communication method using a mobile phone with a panel speaker and a mobile phone with a panel speaker

TAKAHASHI KAZUMASA
SUEOKA TOSHIAKI
MURATA NOBUYUKI
YAMAZAKI SATOSHI

JP435897A

July 31, 1998

January 14, 1997

Click for automatic bibliography generation  

SONY CORP

H04R1/02; H04B1/034; H04R1/04; (IPC1-7): H04R1/04; H04B1/034; H04R1/02

Youichiro Fujishima

Previous Patent: SYNCHRONIZATION SYSTEM BETWEEN SUBSCRIBER'S EQUIPMENTS OF STAR OPTICAL SUBSCRIBER SYSTEM

Next Patent: EARPLUG TYPE EAR RECEIVER WITH EAR HOOK