KR200234963Y1 - Infrared transmitter and wireless headphone - Google Patents

Abstract

The present invention relates to an infrared transmitter and a wireless headphone, the wireless headphone as a back head type, the first and second ear-ear earphones; Connecting rod for physically connecting the first and second ear-ear earphones; First and second receivers installed in the first and second ear-ear earphones and receiving infrared data signals each including predetermined information; A circuit unit embedded in the second ear-type earphone and demodulating a signal output from the first or second receiver; First and second speakers installed in the first and second ear-type earphones and converting a signal output from the circuit unit into voice; And a rechargeable battery for supplying power to the first and second receivers, the circuit unit, and the first and second speakers to communicate with an infrared transmitter which transmits a signal using infrared rays in a low noise state.

Description

Infrared transmitter and wireless headphone

The present invention relates to a transceiver for transmitting and receiving wireless signals, and more particularly, to an infrared transceiver for transmitting an infrared data signal and a wireless headphone for receiving the infrared data signal.

As a method of transmitting and receiving sound at a short distance, there are a wired communication method and a wireless communication method. Since the wireless communication method does not use a wire, there is no inconvenience due to the wire compared to the wired communication method, and the transmission and reception radius is wide, which is convenient for a user to use, and thus has been widely used by communicators. However, since the signal transmission device used in the conventional wireless communication method transmits and receives radio waves by using microwaves, it is difficult to miniaturize due to the volume of an electronic circuit, and the noise is severely generated due to mutual interference between signals. The amount of power consumed by the transmitting amplifier stage is large, and the capacity of the battery built into the apparatus is large. Therefore, there is a disadvantage that the use time of the battery is short and the miniaturization of the device is difficult.

The technical problem to be achieved by the present invention is to provide an infrared transmitter and a wireless headphone with low noise and low power consumption, which can transmit and receive a signal with an information communication terminal using infrared light.

A brief description of each drawing is provided to more fully understand the drawings, which are incorporated in the detailed description of the invention.

1 is a perspective view of an infrared transmitter according to an embodiment of the present invention.

2A to 2C are plan, front and side views of the infrared transmitter shown in FIG. 1, respectively.

3 is a block diagram of the first circuit unit illustrated in FIG. 1.

4 is a block diagram of the second circuit unit illustrated in FIG. 1.

5 is a perspective view of a wireless headphone according to an embodiment of the present invention.

FIG. 6 is a side view illustrating a part of the first earphone and the connecting rod illustrated in FIG. 5.

FIG. 7 is a block diagram of the circuit unit shown in FIG. 5.

FIG. 8 is a diagram illustrating a state in which the wireless headphone shown in FIG. 5 is mounted to the infrared transmitter shown in FIG. 1.

The present invention to achieve the above technical problem,

A first circuit unit which receives a voice data signal applied from an information communication terminal for transmitting and receiving information, amplifies the signal, and modulates the amplified voice data signal; A transmitter for modulating a voice data signal applied from the first circuit unit into an infrared signal and radiating it to the air so as to apply the infrared signal to a receiver within a predetermined distance; A microphone for receiving a voice so that the user can change the voice into an electrical signal and apply the signal to the information communication terminal; A second circuit unit for a user to amplify a signal whose voice is converted into an electrical signal through the microphone and apply the same to the information communication terminal; A charger for charging a rechargeable battery built in an infrared receiver for receiving the infrared data signal; And a main body having the first and second circuit parts and the charger embedded therein, the main body having the transmitter and the microphone installed on the front side thereof.

Preferably, the first circuit unit comprises an input unit for receiving a data signal applied from the information communication terminal; An amplifier for amplifying a data signal applied through the input unit; A modulator that takes frequent samples of the sound from the amplified signal applied through the amplification unit and converts the sound or analog information into binary information by representing the extracted sound modulation values in binary form; An output unit for applying the data signal applied through the modulator to the transmitter; Automatic gain that automatically controls the signal so that when the signal applied through the input is amplified by the amplifier, the output characteristic amplitude of the signal can be kept constant regardless of change over the range of its characteristics with respect to the input. Adjusting unit; And a stereo sound unit to which a stereo sound signal is applied through the modulator so that the user can listen to the sound in stereo when the user listens to the sound.

Preferably, the second circuit unit comprises an amplifier for amplifying a voice data signal applied through the microphone; And an output unit for converting the voice data signal amplified by the amplification unit into a voltage level so that the information communication terminal can receive it. Preferably, the output unit transmits the output signal of the information communication terminal to the first circuit unit. And a second connection jack for transmitting an output signal of the first connection jack and the second circuit unit to the information communication terminal.

Preferably, the apparatus further includes a switch electrically connected to the charger and installed to be exposed to the outside of the main body, and when the infrared receiver contacts the switch, the charger includes a rechargeable battery built in the infrared receiver. In order to achieve the above technical problem, the present invention also provides a wireless headset of a head type, comprising: first and second earmuffs; Connecting sides of which are respectively installed at one side of a predetermined portion of the first and second ear-type earpieces, and are positioned on the back of the head through a user's ear; First and second receivers installed at predetermined portions of the first and second ear-type earphones and receiving infrared data signals including predetermined information emitted from the transmitter; A circuit unit embedded in the second ear-ear earphone and demodulating an infrared data signal input through the first or second receiver; First and second speakers installed in the first and second ear-type earphones and converting a signal applied from the circuit unit into voice; And a rechargeable battery inside a predetermined portion of the first and second ear-type earphones to supply power to the first and second receivers, the circuit unit, and the first and second speakers. Preferably, the circuit unit inputs a signal having a good signal characteristic among the signals received by the first and second receivers.

Preferably, the circuit unit comprises an input unit for inputting one of the signals received by the first and second receiver; A demodulator for demodulating an infrared data signal applied through the input unit; And an output unit configured to amplify and transmit the infrared data signal applied through the demodulator to the first and second speakers.

Preferably, the first and second ear-type earphones are rotated by a predetermined angle from side to side, so that the first and second ear-type earphones can be fixed to the ears of the user so that the first and second ear-type earphones And first and second springs respectively connected between the connecting rod and the connecting rod.

In addition, the outer portions of the first and second ear-type earphones in contact with the ears of the user using the wireless headphones according to the present invention is preferably formed of silicone rubber.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings that illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a perspective view of an infrared transmitter according to an embodiment of the present invention. Referring to FIG. 1, the infrared transmitter 101 includes a main body 111, first and second circuit parts 121 and 122, a transmitter 131, a microphone 141, and a charger 191.

The first circuit unit 121 receives a signal including voice information from an information communication terminal (not shown) that transmits and receives information, amplifies the signal, modulates the amplified diffuser voice data signal, and applies the signal to the transmitter 131. The first circuit unit 121 is electrically connected to the information communication terminal through a first connection jack 171, and a signal from the information communication terminal in a state where the first connection jack 171 is inserted into the information communication terminal. Is authorized. As the information communication terminal, a personal computer, a mobile phone, or the like may be used. The first circuit unit 121 is mounted inside the main body 111.

The transmitter 131 converts a signal output from the first circuit unit 121 into an infrared data signal and radiates it into the air, and the transmitter 131 includes at least one infrared conversion element. As shown in the drawing, a plurality of change elements are installed to receive an infrared data signal well, and the infrared data signal has directivity. The transmitter 131 is installed at the front of the main body 111.

The microphone 141 converts a user's voice into an electrical signal and receives voice data so as to apply the infrared data signal to the information communication terminal, and the microphone 141 is provided at the front of the main body 111. .

In addition, the second circuit unit 122 amplifies an electric signal output from the microphone 141 and transmits it to the information communication terminal (personal computer, mobile phone, etc.), and the second circuit unit 122 is connected to a second connection jack ( 172 is connected to the information communication terminal, and the signal is applied to the information communication terminal while the second connection jack 172 is inserted into the information communication terminal. In addition, the second circuit unit 122 is mounted inside the main body 111.

The charger 151 is used to charge a battery built in a wireless headphone 501 of FIG. 5 for receiving an infrared data signal emitted from the transmitter 131. A switch 191 is connected to the charger 151, and the switch 191 is installed to be exposed to the outside of the main body 111 so that a user can arbitrarily manipulate the predetermined part of the wireless headphone. 191, the charger 151 charges the battery built in the wireless headphone, and includes a push switch that is turned on when the contact terminal is pressed by an operation of the switch 191. A switch with a function can be used. The switch 191 may be installed at any of the grooves 161 and 162.

The first and second circuit units 121 and 122 and the charger 151 are supplied with an external power source such as a commercial voltage (110 volts or 220 volts) through the plug 181.

2A to 2C are plan, front and side views of the infrared transmitter shown in FIG. 1, respectively. As illustrated in FIG. 2A, grooves 161 and 162 are formed on both sides of the infrared transmitter 101 so that the grooves 161 and 162 are detachably installed as shown in FIG. Shapes of the grooves 161 and 162 formed in the 111 are formed to be slightly concave downward so that the wireless headphones can be stably mounted and the charging can be performed smoothly. The microphone 141 is manufactured to be beautiful. It is not limited to the installation as shown in the drawings and may be installed in various forms during the manufacture of the product, the microphone 141 and the transmitter 131 may be installed in various places in accordance with the characteristics of the infrared transmitter 101. Can be.

3 is a block diagram showing the first circuit unit 121 shown in FIG. 1. Referring to FIG. 3, the first circuit unit 121 includes an input unit 311, an amplifier 321, a modulator 331, an output unit 341, an automatic gain adjusting unit 323, and a stereo sound unit. 333.

The input unit 311 receives a signal transmitted from the information communication terminal and inputs a signal to the amplifying unit 321 to amplify the signal, and the amplifying unit 321 receives a signal applied through the input unit. Amplify and apply the signal to the automatic gain adjusting unit 323.

The automatic gain adjusting unit 323 removes noise included in the output signal of the input unit 311 and, when amplified by the amplifying unit, changes the output characteristic amplitude of the signal over a range of its characteristics with respect to the input. The signal is automatically applied to the edge part by controlling the signal so that it remains constant regardless.

The modulator 331 converts sound or analog information into binary information by taking frequent samples of the sound from the amplified signal applied from the amplifier 321 and expressing the extracted sound modulation values in binary form. The modulator 331 may use various modulation schemes including a phase locked loop (PLL). The modulator 331 may be connected to the stereo sound unit 333 so that the modulator 331 may modulate the stereo sound when necessary.

The output unit 341 amplifies a signal output from the modulator 331 and transmits the amplified signal to the transmitter 131. In addition, the stereo sound unit 333 receives a stereo sound signal through the modulator 331 so that the user can listen to the sound in stereo.

4 is a block diagram of the second circuit unit 122 shown in FIG. 1. Referring to FIG. 4, the second circuit unit 122 includes an amplifier 411 and an output unit 421.

The amplifier 411 amplifies the voice data signal applied from the microphone 141, removes noise included in the signal, and applies the voice data signal to the output unit 421. The output unit 421 converts the voice data signal amplified by the amplifier 411 into a voltage level so that the information communication terminal can receive the signal and outputs the converted voltage to the information communication terminal.

5 is a perspective view of a wireless headphone according to an embodiment of the present invention. As shown in FIG. 5, the wireless headphones 501 include first and second ear-ear earphones 511 and 512, connecting rods 521, first and second receivers 531 and 532, circuitry 541, and first and second earpieces. Speakers 551 and 552 and a rechargeable battery 561 are provided. The wireless headphone 501 is a type of a back head, which is positioned to the back of the head through the user's ear.

The first and second ear-ear earphones 511 and 512 are physically connected to each other through a connecting rod 521. The outer portions of the first and second ear-ear earphones 511 and 512 in contact with the ears of the user using the wireless headphones 501 are made of silicone rubber. Accordingly, damage to the first and second ear-ear earphones 511 and 512 due to prolonged use may be prevented. A first receiver 531 and a first speaker 551 may be disposed in the connection table 521. At least one electric line is electrically connected to the rechargeable battery 561 and is electrically connected to the circuit unit 541.

The first and second receivers 531 and 532 are installed in the first and second ear-ear earphones 511 and 512 and receive an infrared data signal including predetermined information emitted from the infrared transmitter 101. The first and second receivers 531 and 532 are installed in front of the first and second ear-ear earphones 511 and 512, respectively, to be suitable for receiving infrared data signals transmitted from the infrared transmitter 101 shown in FIG. .

The circuit unit 541 is embedded in the second ear-ear earphone 512 and demodulates the signal output from the first receiver 531 or the second receiver 532. Among the signals received by the second receivers 531 and 532, only the signal having good signal characteristics is received and demodulated.

In addition, the first and second speakers 551 and 552 are installed in the first and second ear-ear earphones 511 and 512, and convert the signal output from the circuit unit 541 into voice to be heard by the user. The rechargeable battery 561 supplies power required for the operation of the first and second receivers 531 and 532, the circuit unit 541, and the first and second speakers 551 and 552.

FIG. 6 is a side view illustrating a portion of the first ear-type earphone 511 and the connecting rod 521 shown in FIG. 5. First and second springs 611 are installed between the first and second ear-ear earphones 511 and 512 and the connecting rod 521, and the first and second springs 611 are used to first and second springs. The ear canal earphones 511 and 512 are rotated by an angle to the left and right, and thus the first and second ear ear earphones 511 and 512 may be properly positioned to the ears of the user.

FIG. 7 is a block diagram of the circuit unit 541 shown in FIG. 5. Referring to FIG. 7, the circuit unit 541 includes an input unit 711, an amplifier 721, a demodulator 731, an output unit 741, and a mute unit 733.

The input unit 711 inputs one of the signals fins applied from the first or second receiver, and when the input signal is applied to the amplifying unit, the amplifying unit 721 is applied from the input unit 711. The signal is amplified and the amplified signal is applied to the demodulator 721.

The demodulator 731 demodulates the signal output from the amplifier 721, applies the demodulated signal to the output unit 741, and attenuates the noise included in the signal applied to the output unit 741. The muting unit 733 is connected.

The output unit 741 amplifies the output signal of the demodulator 731 and applies it to the first and second speakers 551 and 552 of FIG. 5 so that the user can hear the voice.

FIG. 8 is a diagram illustrating a state in which the wireless headphone shown in FIG. 5 is mounted to the infrared transmitter shown in FIG. 1. As shown in FIG. 8, the wireless headphones are mounted on the infrared transmitter 101 when not in use to charge the rechargeable battery built in the wireless headphones 501. Therefore, the rechargeable battery 561 embedded in the wireless headphones 501 is always kept in a charged state, thereby smoothly operating the wireless headphones 501.

The best embodiments have been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

As described above, according to the present invention, since the infrared transmitter and the wireless headphone transmit and receive signals using infrared light, the user can talk in a low noise state and the size thereof is also reduced. In addition, the built-in rechargeable battery in the wireless headphones reduces the size of the wireless headphones, there is a very convenient advantage over the wired method by communicating wirelessly.

Claims (10)

A first circuit unit which receives a voice data signal applied from an information communication terminal for transmitting and receiving information, amplifies the signal, and modulates the amplified voice data signal; A transmitter for modulating a voice data signal applied from the first circuit unit into an infrared signal and radiating it to the air so as to apply the infrared signal to a receiver within a predetermined distance; A microphone for receiving a voice to change the voice of the user into an electrical signal so that the signal can be applied to the information communication terminal; A second circuit unit for amplifying a signal whose user voice is converted into an electrical signal through the microphone and applying the same to the information communication terminal; A charger for charging a rechargeable battery built in an infrared receiver for receiving the infrared data signal; And And a main body including the first and second circuit parts and the charger, the main body having the transmitter and the microphone installed in front. The first circuit portion An input unit for receiving a data signal applied from the information communication terminal; An amplifier for amplifying a data signal applied through the input unit; And A modulator that takes frequent samples of the sound from the amplified signal applied through the amplification unit and converts the sound or analog information into binary information by representing the extracted sound modulation values in binary form; An output unit for applying the data signal applied through the modulator to the transmitter; Automatic gain that automatically controls the signal so that when the signal applied through the input is amplified by the amplifier, the output characteristic amplitude of the signal can be kept constant regardless of change over the range of its characteristics with respect to the input. Adjusting unit; And And a stereo sound unit to which a stereo sound signal is applied through the modulator so that the user can listen to the sound in stereo when the user listens to the sound. The method of claim 1, The second circuit portion An amplifier for amplifying a voice data signal applied through the microphone; And an output unit for converting and outputting the voice data signal amplified by the amplification unit to a voltage level so that the information communication terminal can receive it. According to claim 1, And an first connection jack for transmitting an output signal of the information communication terminal to the first circuit unit and a second connection jack for transmitting an output signal of the second circuit unit to the information communication terminal. According to claim 1, And a switch electrically connected to the charger and installed to be exposed to the outside of the main body, wherein the charger charges a rechargeable battery built in the infrared receiver when the infrared receiver contacts the switch. Infrared transmitter. In the wireless headphones of the back head type, First and second ear-ear earphones; Connecting sides of which are respectively installed at one side of a predetermined portion of the first and second ear-type earpieces, and are positioned on the back of the head through a user's ear; First and second receivers installed at predetermined portions of the first and second ear-type earphones and receiving infrared data signals including predetermined information emitted from the transmitter; A circuit unit embedded in the second ear-ear earphone and demodulating an infrared data signal input through the first or second receiver; First and second speakers installed in the first and second ear-type earphones and converting a signal applied from the circuit unit into voice; And A wireless headphone is provided with a rechargeable battery in an inner predetermined portion of the first and second ear-type earphones to supply power to the first and second receivers, the circuit unit, and the first and second speakers. The method of claim 6, And the circuit unit inputs a signal having a good signal characteristic among signals received by the first and second receivers. The method of claim 6, The circuit unit may include an input unit configured to input one of signals received by the first and second receivers; A demodulator for demodulating an infrared data signal applied through the input unit; And And an output unit configured to amplify an infrared data signal applied through the demodulator and output the amplified infrared data signal to the first and second speakers. The method of claim 6, The first and second earpiece-type earphones are rotated by a predetermined angle from side to side, so that the first and second earpiece-type earphones are fitted between the first and second earpiece-type earphones and the connecting rod so as to be appropriately fixed to the ears of the user. And first and second springs respectively connected to the wireless headphones. The method of claim 6, Wireless headphones, characterized in that the outer portion of the first and second ear-type earphones in contact with the ears of the user using the wireless headphones is formed of silicone rubber.