CN2442463Y - External connection portable radio hand-free earphone for mobilephone - Google Patents
External connection portable radio hand-free earphone for mobilephone Download PDFInfo
- Publication number
- CN2442463Y CN2442463Y CN 00250864 CN00250864U CN2442463Y CN 2442463 Y CN2442463 Y CN 2442463Y CN 00250864 CN00250864 CN 00250864 CN 00250864 U CN00250864 U CN 00250864U CN 2442463 Y CN2442463 Y CN 2442463Y
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- China
- Prior art keywords
- mobile phone
- demodulating
- modulating
- modular converter
- circuit
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- Expired - Fee Related
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Abstract
The utility model relates to an external connection portable wireless hand-free earphone for mobile telephones, which comprises a mobile telephone, a transfer socket, and an earphone socket, etc. An interior circuit unit of the transfer socket is composed of a speech amplifying circuit, a modulating / demodulating switching circuit, a transmitting circuit, a receiving circuit, and a battery which are connected together; the earphone socket is composed of a speech amplifying circuit, a modulating/ demodulating switching telephone, a transmitting circuit, a receiving circuit, and a battery which are connected together. Thus, the utility model has the advantages that the utility model is suitable for a wireless hand-free receiver device of a mobile telephone with low frequency and low power, and the cost of the producing process is greatly lowered.
Description
The utility model relates to the wireless handfree receiver unit of the special-purpose external portable type of a kind of mobile phone, refers in particular to a kind of applicable to low frequency, the wireless handfree receiver unit of lower powered mobile phone.
Traditional mobile telephone holding-free earphone device all is wired, yet, draw (Bluetooth) wireless transmission from blue bud and develop, cause the transmission line between many electronic products to disappear one by one, as ancillary equipment such as printer, mouse, keyboards.
Blue bud is by the common short-distance wireless communication standard that promotes of international big factory such as IBM, Nokia, Ericsson, Intel, it focuses on the reform of data transfer mode and speed, the reform that is applied on the mobile phone in the normal life of order is the most remarkable, it can replace the transmission line between portable computer, ancillary equipment and mobile phone, and become a kind of wireless communication standard of opening, anticipate promptly, the wireless headset of this mobile phone also is covered by in its territory.
But the wireless handfree receiver unit of mobile phone that is applied to blue bud planned transmission is high on cost, and is not suitable for low frequency, low-power, because of its modulation system difference.
The purpose of this utility model is to propose a kind of wireless handfree receiver unit of being made up of mobile phone, adapter and earphone base of the special-purpose external portable type of a kind of mobile phone, it not only can replace wired handfree receiver unit, and applicable to low frequency, low power ranges, thereby solved the existing in prior technology problem.
The technical scheme that the utility model adopted is that it includes;
One mobile phone;
One adapter, it is to be arranged on the body of this mobile phone, and be communicated with this mobile phone internal circuit, be provided with a modulating/demodulating modular converter in this adapter, the modulating/demodulating modular converter is connected to a radiating circuit module and a receiving circuit module, this modulating/demodulating modular converter is with the cable voice signal modulation from mobile phone output, converts the wireless speech signal to, and this wireless speech signal is sent via the radiating circuit module; Or will convert the cable voice signal to, and export mobile phone to from the wireless speech signal rectification of this receiving circuit module input;
One earphone base, be provided with a modulating/demodulating modular converter in it, the input of modulating/demodulating modular converter is connected in a microphone, the output of modulating/demodulating modular converter is connected in an earphone, and this modulating/demodulating modular converter is connected to a radiating circuit module and a receiving circuit module, this modulating/demodulating modular converter is with the cable voice signal modulation from the microphone input, converts the wireless speech signal to, and sends via the radiating circuit module; Or will convert the cable voice signal to, and export earphone receipts words to from the wireless speech signal demodulation of receiving circuit module input.
Advantage of the present utility model is:
1). can replace wired handfree receiver unit.
2). be applicable to low frequency.
3). be applicable to low-power.
4). reduce cost.
Fig. 1 is the circuit structure block diagram of the utility model adapter.
Fig. 2 is the circuit structure block diagram of the utility model earphone base.
Fig. 3 is the circuit diagram of the utility model adapter internal element.
Fig. 4 is the circuit diagram of the utility model earphone base internal element.
Further specify the utility model preferred embodiment in conjunction with above-mentioned each accompanying drawing now, as shown in Figures 1 to 4.The utility model is a kind of " mobile phone special-purpose external portable type wireless handfree receiver unit ", is one applicable to low frequency, the wireless handfree receiver unit of lower powered mobile phone, and it comprises unit such as a mobile phone 1, an adapter 2 and an earphone base 3.
Modulating/demodulating change-over circuit 22 is made up of microprocessing unit U1, quartz oscillation crystal XL1, assemblies such as XL2, XL3, it is connected in voice amplifying circuit 21, and this modulating/demodulating change-over circuit 22 is connected to the receiving circuit 24 that a radiating circuit 23 that is connected to form by assemblies such as transistor Q1, Q2, variable capacitance VC, inductance L 23, L24, L25, antenna ANT1 and is connected to form by assemblies such as transistor Q3, Q4, inductance L 2, L3, L4, antenna ANT 2;
This modulating/demodulating change-over circuit 22 is to transfer from the speech sound signal of voice amplifying circuit 21 outputs, to convert the wireless speech signal to, and this wireless speech signal is sent by radiating circuit 23; Or will convert the cable voice signal to from the wireless speech electric wave signal demodulation of these receiving circuit 24 receptions, and this cable voice signal is sent to 21 amplifications of voice amplifying circuit, and be sent to mobile phone 1.
Consult Fig. 2 and Fig. 4 again, this earphone base 3 is made up of an earphone 31, a microphone 32, a voice amplifying circuit 31, a modulating/demodulating change-over circuit 34, a radiating circuit 35, a receiving circuit 36 and a battery 37; Wherein:
Modulating/demodulating change-over circuit 34 is made up of microprocessing unit U1, quartz oscillation crystal XL1, assemblies such as XL2, XL3, it is connected in voice amplifying circuit 21, and this modulating/demodulating change-over circuit 34 is connected to the receiving circuit 36 that a radiating circuit 35 that is connected to form by assemblies such as transistor Q1, Q2, variable capacitance VC, inductance L 23, L24, L25, antenna ANT1 and is connected to form by assemblies such as transistor Q3, Q4, inductance L 2, L3, L4, antenna ANT2.;
This modulating/demodulating change-over circuit 34 is with the speech sound signal modulation from 33 outputs of voice amplifying circuit, converts the wireless speech signal to, and this wireless speech signal is sent by radiating circuit 35; Or will convert the cable voice signal to from the wireless speech electric wave signal demodulation of these receiving circuit 36 receptions, and this cable voice signal is sent to 33 amplifications of voice amplifying circuit, receive words and be sent to earphone 31.
When the voice amplifying circuit 33 of this earphone base 3 receives analog voice signal from microphone 32 inputs, this speech sound signal can be amplified, and be sent to modulating/demodulating change-over circuit 34 modulation, convert the wireless speech signal to, and send receiving circuit 24 to adapter 2 by radiating circuit 35, for this receiving circuit 24 the wireless speech signal is sent to modulating/demodulating change-over circuit 22, at this moment, this modulating/demodulating change-over circuit 22 promptly can be with this wireless speech signal demodulation, convert the cable voice signal to, and be sent to 21 amplifications of voice amplifying circuit, and export the internal circuit of mobile phone 1 to, be for further processing for this circuit;
Otherwise, when the voice amplifying circuit 21 of this adapter 2 receives the cable voice signal of exporting from mobile phone 1, this speech sound signal can be amplified, and be sent to modulating/demodulating change-over circuit 22 modulation, convert the wireless speech signal to, and send receiving circuit 36 to earphone base 3 via radiating circuit 23, at this moment, this receiving circuit 36 promptly can be sent to 34 demodulation of modulating/demodulating change-over circuit with the wireless speech signal that receives, convert the cable voice signal to, and this speech sound signal is sent to voice amplifying circuit 33 amplifies, receive words and export earphone 31 to.
The above; it only is one the specific embodiment of the utility model the best; structural feature is not limited thereto, and anyly is familiar with this skill person in field of the present utility model, can think easily and variation or modify the scope of claims protection that all can be encompassed in following this case.
Claims (4)
1, the wireless handfree receiver unit of the special-purpose external portable type of a kind of mobile phone is one applicable to low frequency, the wireless handfree receiver unit of lower powered mobile phone; It is characterized in that it comprises:
One mobile phone;
One adapter, it is to be arranged on the body of this mobile phone, and be communicated with this mobile phone internal circuit, be provided with a modulating/demodulating modular converter in this adapter, the modulating/demodulating modular converter is connected to a radiating circuit module and a receiving circuit module, this modulating/demodulating modular converter is with the cable voice signal modulation from mobile phone output, converts the wireless speech signal to, and this wireless speech signal is sent via the radiating circuit module; Or will convert the cable voice signal to, and export mobile phone to from the wireless speech signal rectification of this receiving circuit module input;
One earphone base, be provided with a modulating/demodulating modular converter in it, the input of modulating/demodulating modular converter is connected in a microphone, the output of modulating/demodulating modular converter is connected in an earphone, and this modulating/demodulating modular converter is connected to a radiating circuit module and a receiving circuit module, this modulation/demodulation modular converter is with the cable voice signal modulation from the microphone input, converts the wireless speech signal to, and sends via the radiating circuit module; Or will convert the cable voice signal to, and export earphone receipts words to from the wireless speech signal demodulation of receiving circuit module input.
2, the wireless handfree receiver unit of the special-purpose external portable type of mobile phone as claimed in claim 1, it is characterized in that said adapter, can be connected a voice amplifying circuit between the output of its modulating/demodulating modular converter and mobile phone, amplify with cable voice signal that will input.
3, the wireless handfree receiver unit of the special-purpose external portable type of mobile phone as claimed in claim 1, it is characterized in that said earphone base, between its modulating/demodulating modular converter, earphone and the microphone, can connect a voice amplifying circuit, amplify with cable voice signal with input.
4, the wireless handfree receiver unit of the special-purpose external portable type of mobile phone as claimed in claim 1 is characterized in that described adapter, and it also can borrow connecting line to be external on the body of mobile phone, and is connected with this mobile phone internal circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00250864 CN2442463Y (en) | 2000-09-07 | 2000-09-07 | External connection portable radio hand-free earphone for mobilephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00250864 CN2442463Y (en) | 2000-09-07 | 2000-09-07 | External connection portable radio hand-free earphone for mobilephone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2442463Y true CN2442463Y (en) | 2001-08-08 |
Family
ID=33608941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00250864 Expired - Fee Related CN2442463Y (en) | 2000-09-07 | 2000-09-07 | External connection portable radio hand-free earphone for mobilephone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2442463Y (en) |
-
2000
- 2000-09-07 CN CN 00250864 patent/CN2442463Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |