Abstract:
A method for transfer of sound source signals relates to installing an insulator in a socket adapter, wherein the insulator is able to drive a detective circuit for detecting whether a sound source plug is inserted in the socket adapter. When any sound source plug is inserted in the socket adapter, the rear IC device executes the process to transfer the signals from sound sources.

Description:
BACKGROUND OF THE INVENTION  
         [0001]    1. Field of the Invention  
           [0002]    The present invention relates to a method for transfer of transfer of sound source signals, particularly to a method for transfer of sound source signals like line-out, line-in, mike-in, and earphone-out, In the present invention, an insulator installed in a socket adapter can drive a detective circuit to determine whether there is a sound source plug inserted in the socket adapter or not. When there is a sound source plug inserted in, the transfer processing can be executed by a rear IC device.  
           [0003]    2. Description of the Prior Art  
           [0004]    In a conventional method for transfer of sound source signals, as shown in FIG. 5, the signals at the output of the sound source signals are first processed by a output amplifier  1 , and then are transmitted to the loudspeaker  3  through the output adapter  2  for outputting. The signals at the input of the sound source signals are first received by the microphone  4 , and then are transmitted to the input amplifier  6  through input adapter  5  for processing. As shown in FIG. 6, the output adapter  2  and the input adapter  5  are respectively composed of the terminals P 1 -P 5 , wherein the terminal PI is connected to the ground, the terminals P 2 , P 5  and the terminals P 3 , P 4  respectively constitute an electrical circuit.  
           [0005]    However, when the quantity of the adapter like adapters  2 ,  5  is increased, it is difficult for user to distinguish the type of the adapter. Once the adapter is used incorrectly, it can not operate normally. As above stated, the conventional method for transfer of sound source signals has its shortcoming, hence, an improved method for transfer of sound source signals is needed.  
         SUMMARY OF THE INVENTION  
         [0006]    The present invention is to provide a method for transfer of transfer of sound source signals which has the following advantages, effects and objectives:  
           [0007]    01. The present invention can determine that whether there is a sound source plug inserted in the socket adapter or not;  
           [0008]    02. The insulator in the socket adapter of the present invention constitutes an independent detective switch;  
           [0009]    03. The rear IC device of the present invention can more easily determine the type of the sound source plug by a voltage dividing circuit;  
           [0010]    04. The present invention can omit the circuit parts (like filter device) needed in conventional method for transfer of sound source signals.  
           [0011]    The technical means and the specific capacity of the present invention now are described in detail by preferred embodiments and accompanying drawings as the following. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0012]    [0012]FIG. 1 is a schematic diagram of the executed circuit of the present invention;  
         [0013]    [0013]FIG. 2 is a schematic diagram of the socket adapter circuit of the present invention;  
         [0014]    [0014]FIG. 2A is an executed circuit diagram of the socket adapter of the present invention;  
         [0015]    [0015]FIG. 2B is a diagram of the executed circuit with two socket adapters in the present invention;  
         [0016]    [0016]FIG. 2C is a diagram of the executed circuit with three socket adapters in the present invention;  
         [0017]    [0017]FIG. 2D is a diagram of the executed circuit with four socket adapters in the present invention;  
         [0018]    [0018]FIG. 2E is a diagram of the executed circuit with five socket adapters in the present invention;  
         [0019]    [0019]FIG. 3 is an executed situation diagram of FIG. 2;  
         [0020]    [0020]FIG. 4 is an executed situation diagram of the second preferred embodiment of the present invention;  
         [0021]    [0021]FIG. 5 is a schematic diagram of a conventional executed circuit;  
         [0022]    [0022]FIG. 6 is a schematic diagram of a conventional socket adapter circuit. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0023]    Referring to FIG. 1, in the method of a preferred embodiment in accordance with the present invention, a voltage dividing circuit composed of socket adapters J 1 -J 3  and resistors R 4 -R 5  in series connects a rear IC device  70  for determining whether the socket adapters J 1 -J 3  are inserted in by sound source plugs or not. If there is any sound source plug inserted in, the transfer processing of the signals from sound source can be processed by the rear IC device  70 . Each socket adapter is an independent detective switch, wherein the socket adapter J 1  connects the resistor R 1  in parallel, the socket adapter J 2  connects the resistor R 2  in parallel and the socket adapter J 3  connects the resistor R 3  in parallel. Whereby the sound signals can be transferred between line-in, line-out, mike-in, and earphone-out.  
         [0024]    Referring to FIGS. 2 and 2A, in the preferred embodiment, said each socket adapter J 1 -J 3  has an insulator  60  in it and is provided with a first terminal  10 , a second terminal  20 , a third terminal  30 , a fourth terminal  40  and a fifth terminal  50 , wherein said first terminal  10  is connected to the ground and when there is no sound source plug (not shown in FIGS) inserted in, said fourth terminal  40  and fifth terminal  50  keep electrical contact to form a detective circuit.  
         [0025]    The preferred embodiment of the executed circuit of the socket adapter in accordance with the present invention can be further described by taking the socket adapter J 1  as an example. As shown in FIG. 2A, the first terminal  10  is connected to the ground, the second terminal  20  connects a capacitor C 1 , the third terminal  30  connects another capacitor C 2 , and the fourth terminal  40  and the fifth terminal  50  connect the resistor R 1  in parallel. The socket adapters J 2 -J 3  are similar with this exemplary circuit. All of them are the feasible means of the present invention.  
         [0026]    Referring to FIG. 3, in the preferred embodiment of the present invention, when a sound source plug (not shown in FIG) inserts in the socket adapters J 1 -J 3 , the sound source plug can touch the second terminal  20  and the third terminal  30  so that the insulator  60  can be driven to separate the fourth terminal  40  from the fifth terminal  50 , whereby the detective circuit is in off-state. Meanwhile, the rear IC device  70  can determine that there is a sound source plug inserted in the socket adapters J  1 -J 3  and can further measure the resistance of the sound source plug by the voltage dividing circuit, whereby the type of the sound source plug can be determined and the transfer processing of the signals from the sound source can be executed exactly.  
         [0027]    Referring to FIG. 4, in the second preferred embodiment of the present invention, when a sound source plug (not shown in FIG) inserts in the socket adapter J 1 -J 3 , the insulator  60  can also be driven by the third terminal  30  to separate the fourth terminal  40  from the fifth terminal  50 , that is, the third terminal  30  can touch and drive the insulator  60 , and the insulator  60  sequentially drives the fifth terminal  50  so that the electrical contact between the fifth terminal  50  and the fourth terminal  40  can be cut off. This is another feasible means of the present invention.  
         [0028]    Referring to FIGS.  2 A˜ 2 E, the quantity of the socket adapter of the present invention can be from one to six for executing a single or multiple channel function. What is shown in FIG. 2B is the preferred embodiment with two socket adapters J 1 , J 2  of the present invention. In socket adapter J 1 , the first terminal  10  is connected to the ground, the second terminal  20  connects a capacitor C 1 , the third terminal  30  connects another capacitor C 2 , and the fourth terminal  40  and the fifth terminal  50  connect resistor R 1  in parallel. In socket adapter J 2 , the first terminal  10  is connected to the ground, the second terminal  20  connects a capacitor C 3 , the third terminal  30  connects another capacitor C 4 , and the fourth terminal  40  and the fifth terminal  50  connect the resistor R 2  in parallel.  
         [0029]    What is shown in FIG. 2C is the preferred embodiment with three socket adapters J 1 , J 2 , J 3  of the present invention. The circuits of the socket adapters J 1 , J 2  in FIG. 2C are the same as in FIG. 2B. As for the socket adapter J 3 , the first terminal  10  is connected to the ground, the second terminal  20  connects a capacitor C 5 , the third terminal  30  connects another capacitor C 6 , the fourth terminal  40  and the fifth terminal  50  connect a resistor R 3  in parallel.  
         [0030]    What is shown in FIG. 2D is the preferred embodiment with four socket adapters J 1 , J 2 , J 3 , J 4  of the present invention. The circuits of the socket adapters J 1 , J 2 , J 3  in FIG. 2D are the same as in FIG. 2C. As for the socket adapter J 4 , the first terminal  10  is connected to the ground, the second terminal  20  connects a capacitor C 7 , the third terminal  30  connects another capacitor C 8 , the fourth terminal  40  and the fifth terminal  50  connect a resistor R 6  in parallel.  
         [0031]    What is shown in FIG. 2E is the preferred embodiment with five socket adapters J 1 , J 2 , J 3 , J 4 , J 5  of the present invention. The circuits of the socket adapters J 1 , J 2 , J 3 , and J 4  in FIG. 2E are the same as in FIG. 2D. As for the socket adapter J 5 , the first terminal  10  is connected to the ground, the second terminal  20  connects a capacitor C 9 , the third terminal  30  connects another capacitor  10 , and the fourth terminal  40  and the fifth terminal  50  connect a resistor R 7  in parallel. A preferred embodiment with six socket adapters in accordance with the present invention can be deduced from the FIGS.  2 B˜ 2 E.  
         [0032]    The above mentioned are parts of feasible means of the present invention. All of them are the preferred embodiments of the present invention and are in accordance with the spirit of the present invention. Therefore, they should be included in the claims of the present invention.