CN2354296Y - Shared device for radio microphone and radio earphone - Google Patents

Shared device for radio microphone and radio earphone Download PDF

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Publication number
CN2354296Y
CN2354296Y CN 98218729 CN98218729U CN2354296Y CN 2354296 Y CN2354296 Y CN 2354296Y CN 98218729 CN98218729 CN 98218729 CN 98218729 U CN98218729 U CN 98218729U CN 2354296 Y CN2354296 Y CN 2354296Y
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CN
China
Prior art keywords
microphone
circuit
wireless
audio signal
shared device
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Expired - Fee Related
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CN 98218729
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Chinese (zh)
Inventor
宋学伟
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Individual
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Individual
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Priority to CN 98218729 priority Critical patent/CN2354296Y/en
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Publication of CN2354296Y publication Critical patent/CN2354296Y/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a shared device for a wireless microphone and a wireless earphone. The utility model is a radio transmitting/receiving device which can be used as a wireless microphone or a wireless earphone. The utility model comprises a transmitting unit 1 and a receiving unit 2, wherein, the transmitting unit 1 comprises a microphone interface 3, a microphone signal pretreatment circuit 4 which is corresponding to the microphone interface 3, an audio signal input interface 6, an audio signal pretreatment circuit 7 which is corresponding to the audio signal input interface 6 and a transmitting circuit 5. Signals processed by the microphone signal pretreatment circuit 4 or the audio signal pretreatment circuit 7 are inputted into the transmitting circuit 5. The utility model has the advantages of simple structure and low cost.

Description

The shared device of wireless microphone and wireless headset
The utility model relates to wireless transmitter.
Wireless microphone comprises and transmits and receives two parts.Wherein, radiating portion comprises microphone again, pre-process circuit and radiating circuit.Wireless microphone is owing to have flexible operation, advantage easy to use, and be widely used for studying and living.But in the prior art, the function singleness of wireless microphone, thereby cost height are unfavorable for the extensive use of wireless microphone.
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, and a kind of wireless microphone that both can be used as is provided, again can be as the wireless transmitter of wireless headset, and this apparatus structure is simple, and is with low cost, is widely used.
For achieving the above object, the utility model has adopted following technical scheme: the shared device of a kind of wireless microphone and wireless headset comprises radiating portion and receiving unit.Radiating portion comprises microphone interface and corresponding microphone signal pre-process circuit thereof, audio input interface and corresponding audio signal pre-process circuit thereof, radiating circuit.The signal input radiating circuit of handling through microphone signal pre-process circuit or audio signal pre-process circuit.
The utility model has the advantages that by radiating portion is carried out suitable transformation, this device both can be used as wireless microphone, can be used as wireless headset again, thereby realize multi-use, greatly reduced the cost of product, had catered to consumers in general's demand.
Be described in further detail below in conjunction with the shared device of drawings and Examples the utility model wireless microphone and wireless headset.
Fig. 1 is the theory diagram of an embodiment of the shared device of the utility model wireless microphone and wireless headset;
Fig. 2 is the circuit diagram of radiating portion of the shared device of wireless microphone shown in Figure 1 and wireless headset;
Fig. 3 is the circuit diagram of receiving unit of the shared device of wireless microphone shown in Figure 1 and wireless headset.
As Fig. 1, Fig. 2 and shown in Figure 3, in embodiment of the present utility model, the shared device of wireless microphone and wireless headset comprises radiating portion 1 and receiving unit 2.
Radiating portion 1 comprises microphone interface 3 and corresponding microphone signal pre-process circuit 4 thereof, audio input interface 6 and corresponding audio signal pre-process circuit 7, modulation amplifying circuit and antenna.Wherein, microphone signal pre-process circuit 4 is a pre-amplifying circuit, and audio signal pre-process circuit 7 is a dividing potential drop attenuator circuit; The integrated package BA1404 that modulation amplifying circuit adopts Japanese Japan electricity tool company to produce realizes.Between microphone signal pre-process circuit 4 and BA1404, be provided with diverter switch SWA between audio signal pre-process circuit 7 and the BA1404, SWB; As diverter switch SWA, SWB beats when the position of " 01 ", and microphone signal pre-process circuit 4 is connected with BA1404, imports BA1404 through the signal that microphone signal pre-process circuit 4 was handled.As diverter switch SWA, SWB beats when the position of " 02 ", and audio signal pre-process circuit 7 is connected with BA1404, imports BA1404 through the signal that audio signal pre-process circuit 7 was handled.The RF output frequency of BA1404 is set fixing several grades for, adopts amateurish channel, for example, can select certain several channel in the scope of 110MHZ-118MHZ.Like this, can use simultaneously by the shared device of several covers, and can not disturb with channel with broadcasting.
Receiving unit 2 comprises reception antenna, receiving circuit 8 and power amplifier 9.The stereo fm that receiving circuit 8 adopts a Toshiba to produce receives integrated package TA8122, the dual track power amplification integrated package CXA1622 that power amplifier 9 adopts a Sony to produce.The signal that reception antenna receives is drawn by microphone audio signal output end 10 after TA8122 handles on the one hand, on the other hand, and input CXA1622; Draw by earphone signal output 11 through the signal that CXA1622 handles.The frequency of oscillation of TA8122 is arranged to and the corresponding several grades of fixed frequencies of the RF output frequency of radiating portion 1, and, adjustable in the scope of 87MHZ-108MHZ.
In order to adapt to dissimilar microphones, external equipments such as earphone and sound equipment, this device also provide the electric connector of multiple different model, so that the matching of shared device and external equipment.
In use, by electric connector microphone is linked to each other with the microphone interface 3 of shared device, and the microphone audio signal output end 10 of shared device is linked to each other with the microphone jack of stereo set by electric connector, then this device can be done the wireless microphone use.And link to each other with the audio input interface 6 of shared device by the audio signal output end of electric connector with stereo set, and earphone is linked to each other with the earphone signal output 11 of shared device, then this device can be done the wireless headset use.In addition, because the receive frequency of receiving unit 2 is adjustable in the scope of 87MHZ-108MHZ, receiving unit 2 can also use by the double as stereo ceiver.
The wireless transmitter of present embodiment is the mode that adopts frequency modulation, in addition, can also adopt modes such as amplitude modulation or infrared ray.

Claims (3)

1. the shared device of wireless microphone and wireless headset comprises radiating portion (1) and receiving unit (2); Wherein, radiating portion (1) includes microphone interface (3), talks about simple signal pre-processing circuit (4) and radiating circuit (5) accordingly, the signal input radiating circuit (5) after microphone signal pre-process circuit (4) is handled;
It is characterized in that: radiating portion (1) also includes audio input interface (6) and corresponding audio signal pre-process circuit (7) thereof; Signal input radiating circuit (5) after audio signal pre-process circuit (7) is handled.
2. the shared device of wireless microphone according to claim 1 and wireless headset is characterized in that: described receiving unit (2) comprises receiving circuit (8) and power amplifier (9); The audio signal of receiving circuit (8) output is drawn by microphone audio signal output end (10) on the one hand, imports power amplifier (9) on the other hand; Draw through earphone signal output (11) through the signal that power amplifier (9) is handled.
3. the shared device of wireless microphone according to claim 1 and 2 and wireless headset is characterized in that: the receive frequency of described receiving unit (2) includes 87MHZ-108MHZ, and adjustable in this scope.
CN 98218729 1998-08-31 1998-08-31 Shared device for radio microphone and radio earphone Expired - Fee Related CN2354296Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 98218729 CN2354296Y (en) 1998-08-31 1998-08-31 Shared device for radio microphone and radio earphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 98218729 CN2354296Y (en) 1998-08-31 1998-08-31 Shared device for radio microphone and radio earphone

Publications (1)

Publication Number Publication Date
CN2354296Y true CN2354296Y (en) 1999-12-15

Family

ID=33970984

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 98218729 Expired - Fee Related CN2354296Y (en) 1998-08-31 1998-08-31 Shared device for radio microphone and radio earphone

Country Status (1)

Country Link
CN (1) CN2354296Y (en)

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C19 Lapse of patent right due to non-payment of the annual fee
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