KR200214834Y1 - Wireless hands-free for mobile phone - Google Patents

Abstract

The present invention is divided into a wireless earphone receiver mounted on the user's ear, and a transmitter unit mounted on the mobile phone to help communication between the mobile phone and the wireless earphone. The receiver and the transmitter are wirelessly communicated by an optical communication method using infrared rays.

Description

Wireless hands-free {WIRELESS HANDS-FREE FOR MOBILE PHONE}

With the widespread use of mobile phones, it is easy to make calls anytime and anywhere, but the voices of concern are also coming out. The most problematic of these are the dangers of using a mobile phone while driving and overexposure to electromagnetic waves.

① In many countries, cell phone calls are strictly regulated by law while driving in Korea is not an exception and is scheduled to be carried out in July. Therefore, the need for hands-free for cell phones is gradually increasing.

② Each medical research institute is demonstrating the damage of electromagnetic waves caused by the use of mobile phones through experiments, and it is urgently required to use hands-free to minimize it, but even if using hands-free, complete liberation from electromagnetic waves Is difficult.

③ The biggest drawback of wired hands-free is the inconvenience of activities such as the LEAD WIRE being caught by surrounding objects and the earphones are easily taken out.

Therefore, it is a hands-free product that can help you to talk safely while driving a vehicle, can minimize the damage of electromagnetic waves, and remove cumbersome lines, to make a more convenient and safe hands-free product.

① Wired handsfree is the most widely used handsfree product at present, but the lead wire (CORD wire) causes considerable inconvenience.

② Recently, wireless hands-free products have been developed and introduced, but they are still premature in terms of their size and price to be popularized, and even worse.

③ Conventional vehicle hands-free can be received through the speaker mounted inside the vehicle if the FM RADIO frequency is set to a certain chanel. Privacy and confidentiality are therefore not guaranteed. It also entails the inconvenience of not being able to use the RADIO or cassette inside the vehicle during the call.

④ This product uses infrared rays. Infrared rays products are used for medical equipment, restaurants, infrared sterilizers, remote controllers, burglar alarms, and meteorological films, but they have not been applied to hands free yet.

① It is a wireless system that solves the inconvenience of wired hands-free, and solves problems such as interference and noise of radio waves by applying a ray type (infrared ray) without using a conventional RADIO radio wave.

② The ear-receiving earphone is equipped with a light receiving circuit to prevent the leakage of the contents of the call, and hands-free operation is simplified, preventing accidents during driving due to unnecessary actions.

③ It improves the economics by reducing the parts used by simplifying the circuit.

The first perspective view of this draft

(1) Receiver: Designed to be worn on the ear and built-in earphone receiver

(2) Transmitter: Power can be supplied from DC POWER JACK (CIGAR JACK) of vehicle or CRADLE of DESK TOP. Built-in MIC for call

When the user intends to use the present invention on a mobile phone, the mobile phone connection CORD (C) of the wireless hands-free transmitter 2 is first connected to the mobile phone. At this time, the power is DC POWER Or DESK TOP CRADLE Indoor power is used. The receiver wears the wireless product on the ear as shown in the figure, and the power supply uses the built-in battery.

Additional explanatory diagram of the overall perspective view of the present invention

The receiving unit 1 has a receiving earphone R, and the transmitting unit 2 has a built-in microphone M. The interaction between the receiving unit and the transmitting unit is made by infrared optical communication.

(1) receiver

* SW1: Receiving switch to make a call when you want to answer an incoming call

* VS: Volume control switch to adjust the reception V0LUME through earphone

* R: Receiver that can be heard in your ear

* PW1: Use the battery as a power source to help the wireless receiver communicate with the transmitter.

(2) transmitter

* M: A microphone for a call to help you convey your voice to the other party

* C: Connecting line to the mobile phone (CORD)

* PW2: Indoor power can be used by using DESK TOP CRADLE, which is designed to receive power by plugging into DC POWER JACK inside the vehicle.

Figure 3 Circuit Working Principle

For a detailed description of this drawing, refer to [Configuration of Drawings].

The present invention is divided into a small ear-phone receiver to be mounted on the ear and a transmitter to be inserted and mounted in the CIGARET LIGHTER SOCKET part inside the user's vehicle. The receiver 1 is operated using a battery, and the transmitter 2 is a CIGARET LIGHTER SOCKET mounted inside the vehicle. Or DESK TOP CRADLE installed to use power supply of the room Power is supplied from

① Press the power switch SW1 in the receiver 1 when the telephone is called, and the battery inside the receiver is supplied, and the optical pulse is emitted from the signal emission circuit OSC inside the receiver for about 0.5 seconds. The emitted light pulse is transmitted to the light receiving SENSOR for switching of the transmitter 2 through the light emitting diode L1 of the receiver.

② The calling unit 2 enters the call state by connecting the switch of the mobile phone JACK through the wire when the internal switching circuit operates.

(3) The call first amplifies (A1) the voice received through the cellular phone in the transmitter circuit, and this signal is converted into light through the infrared light emitting diode L2 and is emitted.

④ The infrared ray of the transmitter is converted into a voice signal through the light receiving sensor S2 of the receiver, and is amplified by the internal amplification circuit A4 to hear the voice through the earphone R. In addition, the voice received through the earphone may adjust the volume using the VOLUME S / W in the receiver (1).

⑤ The user's voice signal input through the microphone (M) mounted on the transmitter is amplified by the amplification circuit (A2) inside the transmitter, and then delivered to the mobile phone through the connection JACK to transmit the contents of the call to the other party. do.

① Since it is wireless hands free, it can be used more safely and conveniently when driving a vehicle than when using a normal wired hands free.

② It is convenient, but it can be popularized because wireless hands-free, which is difficult to popularize due to its high price, can be lowered.

③ Since the contents of the call are not exposed to others, the call can be made without invading privacy.

④ It can be miniaturized than the conventional wireless hands-free product, so it can enjoy aesthetic effect in appearance.

Claims (1)

Power switch (SW1) attached to receive a call when the phone comes in, Signal emitting circuit (OSC) designed to emit light pulses (infrared rays) by pressing the power switch (SW1), Light-emitting DIODE (L1) for transmitting the emitted light pulse (infrared ray) to the light receiving sensor (S1) for the switching of the transmitter 2, Receiving sensor (S2) for receiving the light pulse (infrared rays) of the transmitter to receive the other party's voice, A circuit for converting and amplifying optical pulses received through the light receiving sensor into voice signals, Speakers to help users hear amplified voice, A wireless receiver configured with a VOLUME switch for adjusting the reception volume; A light receiving sensor (S1) for receiving the infrared rays emitted from the receiver, SWITCHING CIRCUIT which enables the reception power of the telephone to be operated by the light receiving sensor. A microphone that accepts a user's voice signal, Wireless PLUG that connects input voice signal to mobile phone, A transmitter configured with an adapter plug for allowing a vehicle or indoor power to be used; Wireless handsfree for mobile phones, enabling wireless communication between mobile phones and receiving earphones