Title:
A WIRELESS OUTDOOR SOUND EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2007/003074
Kind Code:
A1
Abstract:
A wireless outdoor sound equipment consists of wireless sender and wireless receiver.
The said wireless sender consists of volume control circuit, frequency generator,
high frequency amplifier and band pass filter; the said wireless receiver includes
import circuit, difference frequency amplifier, audio amplifier, solar battery
and horn, the said solar battery provides power for circuit. Wireless electric
connection mode is used between the wireless sender and wireless receiver, and
the solar battery and accumulator are used in the receiver at the same time, the
solar battery and accumulator provide stable working power supply to the wireless
receiver without any line (powerline or sound line) enabling the sound outdoors
to work reliablely, thereby bring great convenience to the use of user.
More Like This:
| JP3602792 | Mechanical acoustic crossover network and its transducers |
| WO/2018/186062 | HEADPHONES |
| WO/2017/126040 | SOUND PRODUCTION DEVICE |
Inventors:
FANG SHUZHE (CN)
Application Number:
PCT/CN2005/001109
Publication Date:
January 11, 2007
Filing Date:
July 25, 2005
Export Citation:
Assignee:
FANG SHUZHE (CN)
International Classes:
H04R11/02; H04B5/02
Foreign References:
| CN2269025Y | 1997-11-26 | |||
| CN1305272A | 2001-07-25 | |||
| CN2372857Y | 2000-04-05 |
Attorney, Agent or Firm:
XIAMEN SHINHWA PATENT & TRADE MARK AGENCY CO. LTD. (Hubin East Road Xiamen, Fujian 0, CN)
Download PDF:
Previous Patent: ELECTRICAL STIRRING APPARATUS FOR HAIR COLORING PASTE
Next Patent: A IMPROVED SEAT FOR A VEHICLE AND A PLANE
Next Patent: A IMPROVED SEAT FOR A VEHICLE AND A PLANE