CN2468236Y - Radio earphone for mobile telephone - Google Patents
Radio earphone for mobile telephone Download PDFInfo
- Publication number
- CN2468236Y CN2468236Y CN 01213454 CN01213454U CN2468236Y CN 2468236 Y CN2468236 Y CN 2468236Y CN 01213454 CN01213454 CN 01213454 CN 01213454 U CN01213454 U CN 01213454U CN 2468236 Y CN2468236 Y CN 2468236Y
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- CN
- China
- Prior art keywords
- ultrasonic
- signal
- mobile phone
- capacitor
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a wireless earphone for a mobile telephone. The utility model is composed of a transmitting device and a receiving device, wherein, the transmitting device is arranged on a mobile telephone (a handset), and the receiving device is arranged on an earphone connecting plate. The utility model is characterized in that the transmitting device and the receiving device use ultrasonic waves not electromagnetic waves as a signal carrier. At the time of answering the telephone, the wireless earphone is just required to be worn on a head, and the handset is placed at a waist. The manner avoids using a hand for holding the handset near an ear, which offers convenience for a user; the manner also avoids the radiation of the handset for brains, which reduces the danger of the initiation of cancer and is favorable for a user's health. The earphone has the advantages of simple structure, easy implementation because all the required components are sold on the market, and good sale prospect. The earphone is suitable for being used in cooperation with various handsets.
Description
The utility model relates to a kind of wireless headset, is a kind of wireless headset that is used for mobile phone specifically.
At present, most mobile phone all is not equipped with wireless headset, and the user must lift the ear side with hand and just can converse.This talking mode not only will take a hand, it is inconvenient that the user feels, the more important thing is because of mobile phone too near from brains, the strong width of cloth that mobile phone produces is penetrated and can be damaged human body, according to interrelated data, the strong electromagnetic wave of mobile phone has cause cancer, particularly the danger of leukaemia, the cancer of the brain, nerve cell cancer.Vast mobile phone user urgently wishes to have a kind of wireless headset that human body is not had to injure to realize the communication of mobile phone.
The purpose of this utility model is: for overcoming the above-mentioned defective in the existing mobile phone use, a kind of mobile phone private radio earphone is provided, to avoid in the mobile phone use injury to human brain, and the trouble in the minimizing operation, to satisfy the demand of cellphone subscriber to wireless headset.
The purpose of this utility model is achieved in that because mobile phone mainly is due to the radiation of strong electromagnetic wave to the injury of brain.Therefore, not adopt electromagnetic wave and adopt ultrasonic wave be the technical scheme that carrier is realized its conversation to the utility model.Concrete technical scheme is: set up a cover ultrasonic transmission device outside the body of mobile phone, this installs by ultrasonic oscillator IC
1With ultrasonic wave modulated amplifier IC
2And ultrasound transmitting transducer F
1Form, the audio output of mobile phone is connected to ultrasonic oscillator IC by lead-in wire with audio signal
1Input, at IC
1The resistance R that is electrically connected
1, capacitor C
1And R
2Effect under, IC
1Output produces a ultrasonic signal that is controlled by the mobile phone audio signal, and this signal is through capacitor C
3Be electrically connected to modulated amplifier IC
2Input, after amplifying, be electrically connected to ultrasound transmitting transducer F
1, launch the ultrasonic signal that changes with audio signal.Set up a ultrasonic signal receiving system in addition on the connecting plate of earphone, this installs by ultrasonic wave receiving transducer F
2, preposition amplification and demodulator IC
3, audio power amplifier IC
4And the pronunciation loudspeaker Y is formed.Receiving transducer F
2From receive in the air receive ultrasonic wave and convert the signal of telecommunication to after, through capacitor C
1Be coupled to preposition amplification demodulator IC
3Input, regulate connect resistance R
1, R
2, capacitor C
2, C
3, C
4Parameter, the audio signal of reducible one-tenth emitter input is through amplifirer IC
4After the amplification, drive loud speaker Y and send its device.
The utility model has the advantages that: 1. because this earphone adopts hyperacoustic signal vehicle, therefore the radiation that do not generate electromagnetic waves can not injure brain, helps the healthy of people; 2. because of this earphone is to be worn on the head, when receiving calls, lifts the ear side and take a hand, therefore advantage easy to use is arranged, be particularly suitable for the driver to use, to increase the safety that it is driven without hand.3. this Headphone structure is simple, and required element all has purchase on the market, so cost is low, makes easily, and is easy to utilize.
Introduce an embodiment below in conjunction with accompanying drawing:
Fig. 1 is a circuit block diagram of the present utility model;
Fig. 2 is the radiating circuit schematic diagram of the utility model embodiment;
Fig. 3 is the receiving circuit schematic diagram of the utility model embodiment.
With reference to accompanying drawing 2: outside the machine of mobile phone, have additional the ultrasonic transmit circuit plate, be welded with IC on the circuit board
1Be the oscillatory modulation circuit of " 555 " integrated circuit (IC) chip, the positive pole of power supply meets IC
18 pin, the negative pole of power supply meets IC
11 pin, IC
16 pin link to each other with 2 pin, positive source is connected to IC respectively after resistance R 1, R2 dividing potential drop
17 pin and 2 pin, IC
12 pin and 1 pin between be connected with oscillating capacitance C
1, IC
15 pin be connected to filter capacitor C
2, the audio signal of mobile phone output is connected to IC
14 pin as input signal, IC
1Output 3 pin through coupling capacitance C
3After send that to be connected to power amplification circuit LM386 integrated circuit be IC
2Input pin 3 pin, signal is through IC
2Amplify the back by 5 pin of LM386 through partiting dc capacitor C
6Deliver to ultrasonic wave emission parallel operation F
1, convert the electrical signal to ultrasonic wave and be transmitted into the space.With reference to accompanying drawing 3, in the housing of earphone, be welded with ultrasonic transducer F by printed circuit board (PCB)
2, preamplifier LM358 is IC
3With power amplifier LM386 be IC
4Circuit.F
2Convert the ultrasonic wave that receives to the signal of telecommunication, through capacitor C
1Be connected to IC
3Input pin 5, through the preposition amplification of LM358 after its 1 pin and coupling capacitance C
5After to be connected to power amplifier LM386 be IC
43 pin carry out power amplification, promote earphone horn by the output of 5 pin of this IC4 and sound.
Claims (4)
1, a kind of wireless headset that is used for mobile phone, comprise and be located at the outer emitter of mobile phone and be located at the signal receiving device on the earphone connecting plate and the loud speaker that pronounces, it is characterized in that: being located at the outer emitter of mobile phone is ultrasonic transmission device, and this installs by ultrasonic oscillator (IC
1), ultrasonic wave modulated amplifier (IC
2) and ultrasound transmitting transducer F
1Form, the audio output of mobile phone is connected to ultrasonic oscillator (IC by lead with the audio signal electricity
1) input, at IC
1The resistance R that is electrically connected
1, capacitor C
2And C
3Effect under, IC
1Output produce a ultrasonic signal that is controlled by the mobile phone audio signal, this signal is through capacitor C
3Be electrically connected to modulated amplifier (IC
2) input, be electrically connected to ultrasound transmitting transducer F after amplifying
1, launch the ultrasonic signal that changes with audio signal; The described signal receiving device that is located on the earphone connecting plate is a ultrasonic probe, ultrasonic receiver, and this installs by ultrasonic wave receiving transducer F
2, preposition amplification and demodulator IC
3, audio power amplifier IC
4And loud speaker Y forms receiving transducer F
2After receiving ultrasonic wave and convert the signal of telecommunication to from air interface, through capacitor C
1Be coupled to preposition amplification demodulator IC
3Input, regulate described resistance R
1, R
2, capacitor C
2, C
3, C
4Parameter, the audio signal of reducible one-tenth emitter input is through amplifirer IC
4After the amplification, drive loud speaker Y and send its sound.
2, wireless headset according to claim 1 is characterized in that: the oscillatory modulation circuit IC that welds on the ultrasonic transmit circuit plate
1Be " 555 " integrated circuit (IC) chip, the signal of the 3rd pin output of this chip is through capacitor C
3Be electrically connected to the IC of radiating circuit plate
2Input, IC
2Modulated amplifier is the LM386 integrated circuit (IC) chip.
3, wireless headset according to claim 1 and 2 is characterized in that: preposition amplification of welding on the ultrasonic circuit board for receiving and modulator IC
3Be the LM358 integrated circuit (IC) chip, amplifirer IC
4Be the LM386 integrated circuit (IC) chip.
4, wireless headset according to claim 1 is characterized in that: this wireless headset adopts ultrasonic wave for cutting out the sending and receiving circuit of body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213454 CN2468236Y (en) | 2001-02-20 | 2001-02-20 | Radio earphone for mobile telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213454 CN2468236Y (en) | 2001-02-20 | 2001-02-20 | Radio earphone for mobile telephone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2468236Y true CN2468236Y (en) | 2001-12-26 |
Family
ID=33632424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01213454 Expired - Fee Related CN2468236Y (en) | 2001-02-20 | 2001-02-20 | Radio earphone for mobile telephone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2468236Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013023344A1 (en) * | 2011-08-12 | 2013-02-21 | Motorola Mobility, Inc. | Methods and apparatuses for media property or characteristic control in a media system |
| CN108173603A (en) * | 2017-12-26 | 2018-06-15 | 上海展扬通信技术有限公司 | A kind of signal processing method and control terminal |
-
2001
- 2001-02-20 CN CN 01213454 patent/CN2468236Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013023344A1 (en) * | 2011-08-12 | 2013-02-21 | Motorola Mobility, Inc. | Methods and apparatuses for media property or characteristic control in a media system |
| US9686396B2 (en) | 2011-08-12 | 2017-06-20 | Google Technology Holdings LLC | Method and apparatus for media property of characteristic control in a media system |
| US9876887B2 (en) | 2011-08-12 | 2018-01-23 | Google Llc | Method and apparatus for media property or characteristic control in a media system |
| US10244093B2 (en) | 2011-08-12 | 2019-03-26 | Google Technology Holdings LLC | Method and apparatus for media property or characteristic control in a media system |
| US11005985B2 (en) | 2011-08-12 | 2021-05-11 | Google Technology Holdings LLC | Method and apparatus for media property or characteristic control in a media system |
| US11665272B2 (en) | 2011-08-12 | 2023-05-30 | Google Technology Holdings LLC | Method and apparatus for media property or characteristic control in a media system |
| CN108173603A (en) * | 2017-12-26 | 2018-06-15 | 上海展扬通信技术有限公司 | A kind of signal processing method and control terminal |
| CN108173603B (en) * | 2017-12-26 | 2021-08-20 | 上海展扬通信技术有限公司 | Signal processing method and control terminal |
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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 |