Patent Publication Number: US-2016231980-A1

Title: Wireless Signal Transmission Device and Sound System Having the Same

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a wireless signal transmission device and a sound system having the same, and particularly to a wireless signal transmission device that can be directly supported by an audio amplifier and a sound system having the wireless signal transmission device. 
     2. Description of the Related Art 
     With advances in technology, nowadays an audio amplifier can be connected with an audio cable to a radio receiver or transmitter with a wired connection, whereby an audio signal can be broadcasted. In the prior art, the radio receiver or transmitter is placed on a surface and then connected to the audio amplifier with a wired connection. However, this connection may result in greater attenuation and distortion if the audio cable is too long. In addition, placing the radio receiver or transmitter on another surface requires a matched storage space and suitable placement height. If the audio receiver or transmitter is arbitrarily placed, interference with the transmission effect of an antenna on the audio receiver or transmitter can result from an improper placement location. The placement may result in a poor electromagnetic field, which can affect the quality of reception. This may also cause inconvenience in using the audio receiver or transmitter and thus decrease the willingness of the user to use the audio device. 
     Accordingly, there is a need to provide a new wireless signal transmission device and a sound system having the same to address the deficiency in the prior art. 
     SUMMARY OF THE INVENTION 
     It is a major objective of the present invention to provide a wireless signal transmission device having a structure that can be directly supported by an audio amplifier. 
     It is another major objective of the present invention to provide a sound system having the wireless signal transmission device described above. 
     To achieve the objectives described above, the wireless signal transmission device of the present invention is used for connecting to an audio amplifier, wherein the audio amplifier includes at least one connecting hole. The wireless signal transmission device includes a chassis, a base board, an antenna, a control module, and at least one signal transmission port. The base board is disposed in the chassis. The antenna disposed on the base board is used for emitting or receiving an audio signal. The control module, which is disposed on the base board and electrically connected to the antenna, is used for controlling the transmission or reception of the audio signal. The at least one signal transmission port, which is electrically connected to the control module and directly connected to the at least one connecting hole of the audio amplifier, is used for transmitting the audio signal. Specifically, the chassis is able to be supported by the at least one connecting hole according to a connection between the at least one signal transmission port and the at least one connecting hole. 
     The sound system having a wireless signal transmission device of the present invention includes an audio amplifier and a wireless signal transmission device. The audio amplifier includes at least one connecting hole. The wireless signal transmission device is used for electrically connecting to the audio amplifier. The wireless signal transmission device includes a chassis, a base board, an antenna, a control module, and at least one signal transmission port. The base board is disposed in the chassis. The antenna disposed on the base board is used for transmitting or receiving an audio signal. The control module, which is disposed on the base board and electrically connected to the antenna, is used for controlling the emitting or receiving of the audio signal. The at least one signal transmission port, which is electrically connected to the control module and directly connected to the at least one connecting hole of the audio amplifier, is used for transmitting the audio signal. Specifically, the chassis is able to be supported by the at least one connecting hole according to a connection between the at least one signal transmission port and the at least one connecting hole. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an assembly diagram of a wireless signal transmission device and an audio amplifier according to a first embodiment of the present invention; 
         FIG. 2  is an assembly diagram of a wireless signal transmission device and an audio amplifier according to a second embodiment of the present invention; 
         FIG. 3  is an assembly diagram of a wireless signal transmission device and an audio amplifier according to a third embodiment of the present invention; and 
         FIG. 4  is an assembly diagram of a wireless signal transmission device and an audio amplifier according to a fourth embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Hereafter, the technical content of the present invention will be better understood with reference to preferred embodiments. 
     Hereinafter, please first refer to  FIG. 1 , which is an assembly diagram of a wireless signal transmission device and an audio amplifier according to a first embodiment of the present invention. 
     A sound system  1   a  of the present invention includes a wireless signal transmission device  10   a  and an audio amplifier  20  connected thereto. The audio amplifier  20  can be used for amplifying an audio signal. A panel on the audio amplifier  20  may be provided with a plurality of connecting holes. The audio amplifier  20  in  FIG. 1  includes a signal receiving connecting hole  21  and a signal transmission connecting hole  22 . Both the signal receiving connecting hole  21  and the signal transmission connecting hole  22  may be female RCA connectors, but the present invention is not limited to that specification. Since the audio amplifier  20  is widely used in today&#39;s environment, the functionality will not be described in detail herein. The wireless signal transmission device  10   a  includes a chassis C, a base board  11 , an antenna  12 , a control module  13 , a first signal transmission port  14   a,  and a second signal transmission port  15   a.  The base board  11  is disposed in the chassis C and may be a printed circuit board (PCB), but the present invention is not limited thereto. The antenna  12  is disposed on the base board  11  and is used for transmitting or receiving an audio signal, such as a radio signal. The control module  13  may be a chip in the architecture of hardware, hardware with firmware, or hardware with software. The control module  13  is also disposed on the base board  11  and electrically connected to the antenna  12  for controlling the receiving, transmission or conversion of audio signals, such as the conversion of a digital signal received by the antenna  12  to an analog signal able to be received by the audio amplifier  20 . However, the present invention is not limited to only the control module  13  performing this procedure. 
     The first signal transmission port  14   a  and the second signal transmission port  15   a  are connected to the control module  13  for transmitting the audio signal. Specifically, the first signal transmission port  14   a  is directly connected to a signal receiving connecting hole  21  of the audio amplifier  20  to transmit the audio signal to the audio amplifier  20 . The second signal transmission port  15   a  is directly connected to a signal transmission connecting hole  22  of the audio amplifier  20  to receive the audio signal from the audio amplifier  20 . Also, the at least one connecting hole (e.g., the signal receiving connecting hole  21  or the signal transmission connecting hole  22  in  FIG. 1 ) connected to the audio amplifier  20  is supported by the chassis C of the wireless signal transmission device  10   a  through the at least one signal transmission port (e.g., the first signal transmission port  14   a  or the second signal transmission port  15   a  in  FIG. 1 ). 
     In a first embodiment of the present invention, both the first signal transmission port  14   a  and the second signal transmission port  15   a  are male RCA connectors for plugging into a signal receiving connecting hole  21  and a signal transmission connecting hole  22 , both of which are female RCA connectors. As such, the signal receiving connecting hole  21  and the signal transmission connecting hole  22  of the audio amplifier  20  can be supported by the chassis C. Also, since the connector specifications of the RCA connector can provide adequate support, the chassis C can be firmly supported by the signal receiving connecting hole  21  or the signal transmission connecting hole  22  of the audio amplifier  20 . In addition, the direct connection between the audio amplifier  20  and the antenna  12  through the first signal transmission port  14   a  and the second signal transmission port  15   a  allows users to employ the wireless signal transmission device  10   a  in an intuitive way without requiring special consideration of the placement of the wireless signal transmission device  10   a.  Furthermore, the problem that the transmission path is too long will not occur, so the problems of the signal fading or distortion are prevented. 
     In addition, the wireless signal transmission device  10   a  may also include a switch  16  and a memory card slot  17 . The switch  16  is disposed on the base board  11  for users to control the operations of the wireless signal transmission device  10   a.  The memory card slot  17  is used for inserting a device such as a memory card (not shown) to achieve expansion capabilities of the wireless signal transmission device  10   a.  Since the functionality of the switch  16  and the memory card slot  17  is not the aspect of the present invention to be improved, the principle will not be described in detail herein. 
     Now please refer to  FIG. 2 , which is an assembly diagram of a wireless signal transmission device and an audio amplifier according to a second embodiment of the present invention. 
     In the second embodiment of the present invention, similarly, a wireless signal transmission device  10   b  of a sound system lb includes a chassis C, a base board  11 , an antenna  12 , a control module  13 , a first signal transmission port  14   b,  a second signal transmission port  15   b,  a switch  16  and a memory card slot  17 . The functionalities of the base board  11 , the antenna  12 , the control module  13 , the switch  16 , and the memory card slot  17  are the same as those in the first embodiment and thus will not be repeated herein. In addition, the first signal transmission port  14   b  in the second embodiment may be a male connector having a flexible cable, and its joint angle may be rotated 90 degrees to allow for the connection to the signal receiving connecting hole  21 . The second signal transmission port  15   b  is a hard male connector and directly connected to the signal transmission connecting hole  22  such that the chassis C can be supported by the signal transmission connecting hole  22  of the audio amplifier  20  by means of the second signal transmission port  15   b  without falling off. 
     Now please refer to  FIG. 3 , which is an assembly diagram of a wireless signal transmission device and an audio amplifier according to a third embodiment of the present invention. 
     In the third embodiment of the present invention, the forms of the first signal transmission port  14   c  and the second signal transmission port  15   c  included in a wireless signal transmission device  10   c  of a sound system  1   c  are different from those in the first or second embodiment described above. Both the first signal transmission port  14   c  and the second signal transmission port  15   c  are female RCA connectors. The first signal transmission port  14   c  is connected to the signal receiving connecting hole  21  through a flexible cable  32 , while the second signal transmission port  15   c  is directly connected to the signal transmission connecting hole  22  through a rigid double male connector  31 . Accordingly, the chassis C can be supported by the second signal transmission port  15   c.  It should be noted that the first signal transmission port  14   c  and the second signal transmission port  15   c  can be connected to the audio amplifier  2  simultaneously by means of the rigid double male connector  31 , but the present invention is not limited thereto. 
     Last, please refer to  FIG. 4 , which is an assembly diagram of a wireless signal transmission device and an audio amplifier according to a fourth embodiment of the present invention. 
     In the fourth embodiment of the present invention, the forms of the first signal transmission port  14   d  and the second signal transmission port  15   d  included in the wireless signal transmission device  10   d  of the sound system  1   d  are not different from those in the embodiments described above. The first signal transmission port  14   d  and the second signal transmission port  15   d  are both male RCA connectors. However, the wireless signal transmission device  10   d  further includes a slide rail  18  on which the first signal transmission port  14   d  is disposed such that the first signal transmission port  14   d  can slide along the slide rail. Accordingly, when the wireless signal transmission device  10   d  is connected to the audio amplifier  20 , the slide rail  18  can be used in conjunction with the spacing distance between the signal receiving connecting hole  21  and the signal transmission connecting hole  22  to adjust the position of the first signal transmission port  14   d.    
     Any of the wireless signal transmission devices  10   a,    10   b,    10   c,    10   d  of the present invention can be directly connected to the signal receiving connecting hole  21  or the signal transmission connecting hole  22  of the audio amplifier  20 , which allows users to employ the devices  10   a,    10   b,    10   c,    10   d  of the present invention in a more intuitive way. Also, through the support of the signal receiving connecting hole  21  or the signal transmission connecting hole  22  of the audio amplifier  20 , the problem of antenna interference can be avoided, and wiring can be achieved as well. 
     As described above, the objective, means, and efficiency of the present invention are all different from conventional characteristics in the prior art. It will be appreciated if the committee can review and grant a patent to benefit society. However, it should be noted that the described embodiments are only for illustrative and exemplary purposes, and that various changes and modifications may be made to the described embodiments without departing from the scope of the invention as specified by the appended claims.