Wireless transmission device of surround sound stereo system
First Claim
Patent Images
1. A wireless transmission device of surround sound stereo system, comprising:
- at least one front mixer, for mixing a subwoofer signal with left and right surround signals outputted from a stereo system;
a radio frequency transmitting module, comprising a modem, a radio frequency transmitter, and an antenna, and using a cable to receive a two-channel signal produced by mixing said subwoofer signal and said left and right surround signals of said stereo system and transmit said two-channel signal by a radio frequency;
a front power supply circuit, for driving the operation of said radio frequency transmitting module;
a radio frequency receiving module, comprising a modem, a radio receiver, and an antenna, for receiving the signal transmitted from said radio frequency transmitting module;
a decoder, coupled to said radio frequency receiving module for decoding the signal received by said radio frequency receiving module;
at least one rear crossover, having at least one selected from the collection of a rear distributor, a rear high-pass filter, and a rear low-pass filter and being disposed at the rear section of said decoder, for separating said subwoofer signal from said left and right surround signals to facilitate the output of subwoofer signal, left surround signal and right surround signal to the corresponding speakers by a cable;
a rear power supply circuit, for driving the operation of said radio frequency receiving module;
thereby constituting a wireless transmission device for outputting the subwoofer signal, left and right surround signals of said main stereo system.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention discloses a wireless transmission device for surround sound stereo systems using a front mixer to mix the subwoofer signal of the main stereo system with the left and right surround signals into a 2-channel signal and transmit the signal by a radio frequency. After the subwoofer receives and decodes the signal, and the rear crossover separates the subwoofer signal and sends the subwoofer signal, left surround signal, and right surround signal respectively to the corresponding speakers for the playback, such arrangement provides a wireless signal transmission between the subwoofer and the main stereo system.
-
Citations
14 Claims
-
1. A wireless transmission device of surround sound stereo system, comprising:
-
at least one front mixer, for mixing a subwoofer signal with left and right surround signals outputted from a stereo system;
a radio frequency transmitting module, comprising a modem, a radio frequency transmitter, and an antenna, and using a cable to receive a two-channel signal produced by mixing said subwoofer signal and said left and right surround signals of said stereo system and transmit said two-channel signal by a radio frequency;
a front power supply circuit, for driving the operation of said radio frequency transmitting module;
a radio frequency receiving module, comprising a modem, a radio receiver, and an antenna, for receiving the signal transmitted from said radio frequency transmitting module;
a decoder, coupled to said radio frequency receiving module for decoding the signal received by said radio frequency receiving module;
at least one rear crossover, having at least one selected from the collection of a rear distributor, a rear high-pass filter, and a rear low-pass filter and being disposed at the rear section of said decoder, for separating said subwoofer signal from said left and right surround signals to facilitate the output of subwoofer signal, left surround signal and right surround signal to the corresponding speakers by a cable;
a rear power supply circuit, for driving the operation of said radio frequency receiving module;
thereby constituting a wireless transmission device for outputting the subwoofer signal, left and right surround signals of said main stereo system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification