Portable audio wireless communication device

A portable audio wireless communication device cooperating with a portable electrical apparatus with a display component has a plug for matting with the portable electrical apparatus, a speaker and a cable connected the plug and the speaker. The plug has a signal contact connected one end of a signal wire of the cable, a ground contact connected one end of a matching antenna wire of the cable, a first antenna contact connected one end of a first antenna wire and one end of the matching antenna, and a second antenna contact connected one end of the second antenna of the cable. When the portable audio wireless communication device operates at wireless communication, cooperation of the first antenna wire and the matching antenna wire resonates at UHF broadcast band, and the second antenna wire resonates at FM broadcast band and VHF broadcast band.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates to a portable audio wireless communication device, and particularly to a portable audio wireless communication device capable of receiving wireless broadcast and cooperating with an apparatus with a display component.

2. The Related Art

In early stages, people listen in to music through audio broadcast such as frequency modulation (FM) broadcast and amplitude modulation (AM) broadcast. Recently, people watch television programs on high definition television (HDTV) through video broadcast such as very high frequency (VHF) and ultra high frequency (UHF) broadcast.

A conventional broadcast receiver capable of receiving various broadcasts is configured in an auto motor. So an antenna cooperated with the conventional broadcast receiver has large volume, which is also configured in the auto motor. According to development of display technology and wireless communication technology, a portable electrical apparatus with a display device such as a mobile phone, a personal digital assistant, etc is equipped with the function for processing audio and video broadcast signal which is received from various broadcast bands, and then outputting audio through a speaker and video through the display device. Therefore, it is necessary that an antenna has small volume capable of cooperating with the portable electrical apparatus.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a portable audio wireless communication device with small volume capable of operating at various broadcast bands and cooperating with a portable electrical apparatus with a display component.

According to the invention, the portable audio wireless communication device has a plug, a speaker and a cable connected the plug and the speaker. The plug electronically coupled with the portable electrical apparatus has a signal contact, a ground contact, a first antenna contact and a second antenna contact. The cable has insulation material which shields a signal wire, a first antenna wire, a matching antenna wire and a second antenna wire. The signal wire electronically connects to the signal contact of the plug and the speaker. One end of the first antenna wire electronically connects to the first antenna contact of the plug. One end of the matching antenna wire electronically connects to the ground contact and the first antenna contact of the plug. One end of the second antenna wire electronically connects to the second antenna contact of the plug.

When the portable audio wireless communication device operates at wireless communication, cooperation of the first antenna wire and the matching antenna wire resonates at UHF broadcast band and the second antenna wire resonates at FM broadcast band and VHF broadcast band.

Therefore, the speaker of the portable audio wireless communication device transforms audio signal which is carried on FM, UHF and VHF broadcast bands and received through the portable audio wireless communication device to sound and outputs the sound. The display component of the portable electrical apparatus displays images which are transformed from video signal carried on UHF and VHF broadcast bands and received through the portable audio wireless communication device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Please refer toFIG. 1, which shows cooperation of a portable audio wireless communication device100and a portable electrical apparatus9with a display component90. In this embodiment, the portable electrical apparatus9is a mobile phone.

Please refer toFIG. 2, which illustrates a first preferred embodiment of the portable audio wireless communication device100having a plug1for mating with a connector of the portable electrical apparatus9(shown inFIG. 1), a speaker2and a cable3connected to the plug1and the speaker2. In this case, the portable audio wireless communication device100is equiped with a pair of speakers2. The plug1has a signal contact10, a first antenna contact11, a ground contact12and a second antenna contact13for being electronically coupled with the connector of the portable electrical apparatus9.

The cable3has a signal wire30, a first antenna wire31, a matching antenna wire32, a second antenna wire33and insulation material34shielding the signal wire30and the antenna wires31,32,33. One end of the signal wire30electronically connects to the signal contact10of the plug1, the other end of the signal wire30electronically connects to the speaker2for transmitting audio signal. One end of the first antenna wire31electronically connects to the first antenna contact11of the plug1. One end of the matching antenna wire32electronically connects to the ground contact12and the first antenna contact11of the plug1. One end of the second antenna wire33electronically connects to the second antenna contact13of the plug1.

Still referring toFIG. 2, in this case, the first antenna wire31obtains an electrical resonance length of three-fourths wavelength corresponding to UHF broadcast band, and the matching antenna wire32obtains an electrical resonance length of a quarter wavelength corresponding to UHF broadcast band. In this case, the first antenna wire31and the matching antenna wire32are formed to J-type antenna. The second antenna wire33obtains an electrical resonance length of a quarter wavelength corresponding to FM broadcast band and VHF broadcast band. In this case, the second antenna wire33is a monopole antenna.

When the portable audio wireless communication device100cooperates with the portable electrical apparatus9, the plug1of the portable audio wireless communication device100mates with the connector of the portable electrical apparatus9and the ground contact12of the plug1electronically connects to the ground of the portable electrical apparatus9. The current is transmitted from the portable electrical apparatus9and passed through the plug1of the portable audio wireless communication device100and then respectively fed to the first antenna wire31, the matching antenna wire32and the second antenna wire33. Therefore, the cooperation of the first antenna wire31and the matching antenna wire32resonates at UHF broadcast band, and the second antenna wire33resonates at FM and VHF broadcast bands.

Please refer toFIG. 3, which shows a second preferred embodiment of the portable audio wireless communication device100. In this case, the portable audio wireless communication device100has a matching circuit4connected in serial with said second antenna wire33for adjusting electrical characteristic of the second antenna wire33. Therefore, the cooperation of the second antenna wire33and the matching circuit4resonates a preferred bandwidth including FM and VHF broadcast bands. The matching current4can be capacitance or inductance or consist of capacitance and inductance.

Because the first antenna wire31, the matching antenna wire32and the second antenna wire33are contained in the cable3of the portable audio wireless communication device100, the portable audio wireless communication device100has a small volume for being carried. The speaker2of the portable audio wireless communication device100transforms audio signal which is carried on UHF, VHF and FM broadcast bands and received through the portable audio wireless communication device100to sound and outputs the sound. The display component90of the portable electrical apparatus9displays images which are transformed from video signal carried on UHF and VHF broadcast bands and received through the portable audio wireless communication device100.

Moreover, the speaker91of the portable electrical apparatus9can also transform audio signal which is carried on UHF, VHF and FM broadcast bands and received through the portable audio wireless communication device100to sound and output the sound.

Furthermore, the present invention is not limited to the embodiments described above; various additions, alterations and the like may be made within the scope of the present invention by a person skilled in the art. For example, respective embodiments may be appropriately combined.