Transmission plug and related complex earphone and radio player

1. A transmission plug for a complex earphone utilized for receiving a broadcast signal and sending out an audio signal, the transmission plug comprising:

a first metal ring, for providing an audio grounding;

a first insulation layer, formed inside the first metal ring;

a second metal ring, formed inside the first insulation layer, for transmitting the audio signal;

a second insulation layer, formed inside the second metal ring; and

a radio-frequency transmission stick, formed inside the second insulation layer, for transmitting the broadcast signal;

wherein a shape of the transmission plug conforms to an international standard audio plug.

2. The transmission plug of claim 1 , wherein the radio-frequency transmission stick comprises:

a third metal ring, formed inside the second insulation layer, for providing a radio-frequency grounding;

a third insulation layer, formed inside the third metal ring; and

a metal stick, formed inside the third insulation layer, for transmitting the broadcast signal.

3. The transmission plug of claim 1 , wherein the radio-frequency transmission stick is formed inside the second insulation layer and capable of moving back and forth.

4. The transmission plug of claim 3 , wherein the radio-frequency transmission stick moves back and forth by means of rotation.

5. The transmission plug of claim 3 , wherein the radio-frequency transmission stick moves back and forth by means of pressing.

6. The transmission plug of claim 1 , wherein the broadcast signal is a satellite broadcast signal.

7. A complex earphone for a radio receiver comprising:

a reception antenna, for receiving a broadcast signal;

an audio output device, for playing an audio signal; and

a transmission plug, capable of being coupled to the radio receiver by means of plugging, with a shape conforming to an international standard audio plug, the transmission plug comprising:

a first metal ring, coupled to the audio output device, for providing an audio grounding;

a first insulation layer, formed inside the first metal ring;

a second metal ring, formed inside the first insulation layer, and coupled to the audio output device, for transmitting the audio signal;

a second insulation layer, formed inside the second metal ring; and

a radio-frequency transmission stick, formed inside the second insulation layer, and coupled to the reception antenna, for transmitting the broadcast signal.

8. The complex earphone of claim 7 , wherein the radio-frequency transmission stick comprises:

a third metal ring, formed inside the second insulation layer for providing a radio-frequency grounding;

a third insulation layer, formed inside the third metal ring; and

a metal stick, formed inside the third insulation layer for transmitting the broadcast signal.

9. The complex earphone of claim 7 , wherein the radio-frequency transmission stick is formed inside the second insulation layer and capable of moving back and forth.

10. The complex earphone of claim 9 , wherein the radio-frequency transmission stick moves back and forth by means of rotation.

11. The complex earphone of claim 9 , wherein the radio-frequency transmission stick moves back and forth by means of pressing.

12. The complex earphone of claim 7 , wherein the broadcast signal is a satellite broadcast signal.

13. A radio player comprising:

a radio receiver, for processing a broadcast signal and outputting a corresponding audio signal;

a jack, formed in the radio receiver, comprising:

a first metal spring pin, for providing an audio grounding;

a second metal spring pin, for transmitting the audio signal; and

a radio-frequency reception jack, for transmitting the broadcast signal; and

a complex earphone comprising:

a reception antenna, for receiving the broadcast signal;

an audio output device, for playing the audio signal; and

a transmission plug, capable of being coupled to the jack by means of plugging in, with a shape conforming to an international standard audio plug, the transmission plug comprising:

a first metal ring, coupled to the audio output device and the first metal spring pin, for providing the audio grounding;

a first insulation layer, formed inside the first metal ring;

a second metal ring, formed inside the first insulation layer, and coupled to the audio output device and the second metal spring pin, for transmitting the audio signal;

a second insulation layer, formed inside the second metal ring; and

a radio-frequency transmission stick, formed inside the second insulation layer, and coupled to the reception antenna and the radio-frequency reception jack, for transmitting the broadcast signal.

14. The radio player of claim 13 , wherein the radio-frequency transmission stick comprises:

a third metal ring, formed inside the second insulation layer, for providing a radio-frequency grounding;

a third insulation layer, formed inside the third metal ring; and

a metal stick, formed inside the third insulation layer, for transmitting the broadcast signal.

15. The radio player of claim 14 , wherein the radio-frequency reception jack comprises:

a fourth metal ring, for coupling to the third metal ring to provide the radio-frequency grounding; and

a hole, for coupling to the metal stick to transmit the broadcast signal to the radio receiver.

16. The radio player of claim 13 , wherein the radio-frequency transmission stick is formed inside the second insulation layer and capable of moving back and forth.

17. The radio player of claim 16 , wherein the radio-frequency transmission stick moves back and forth by means of rotation.

18. The radio player of claim 16 , wherein the radio-frequency transmission stick moves back and forth by means of pressing.

19. The radio player of claim 13 , wherein the international standard audio plug is a 2.5 mm or 3.5 mm international standard audio plug.

20. The radio player of claim 13 , wherein the broadcast signal is a satellite broadcast signal.