KR100336918B1 - Cordless handsfree adapter for walkie talkie - Google Patents

Abstract

The present invention relates to a wireless hands-free adapter of a portable telephone. The earphone / microphone plug 14 of the adapter 10 is connected to the earphone / microphone input terminal of the portable telephone 1 to input and output a voice signal. A main body 12 mounted to detach the phone 1 is configured, and the earphone / microphone connection terminal of the portable phone 1 is connected and operated to transmit and receive a radio signal through the radio signal transceiver 16. The printed circuit board 22 has a built-in circuit, and the user carries the personal portable telephone such as a cellular phone or a PCS phone (personal mobile communication) or puts the telephone in a predetermined place such as a vehicle or a ship. It allows you to answer calls in hands free.

Description

Cordless handsfree adapter for walkie talkie

The present invention is a mobile phone (Celluler Phone) or PCS phone (personal mobile communication) such as a personal portable phone, such as carrying a mobile phone or a place in a predetermined place, such as a ship or a ship, the user does not pick up the phone (Hands Free) The present invention relates to a wireless hands-free adapter for a portable telephone capable of receiving a telephone, and more particularly, to a hands-free adapter for a portable telephone capable of transmitting and receiving an infrared signal without a wire and the hands-free of Patent Application No. 98-52799, which the patent is filed by the same person.

Unlike a landline telephone, a portable telephone is a communication device that transmits and receives a wireless signal, so that a user can carry it. Therefore, the portable telephone can transmit a radio signal at any time while making a phone call or receive a radio signal from the public.

Therefore, the portable telephone is used as a power source by mounting a battery in the main body of the telephone, and is capable of transmitting and receiving a radio signal by an antenna for transmitting and receiving, and the battery for supplying power to the telephone using a separate charger. The battery can be recharged.

Recently, portable telephones are becoming smaller and lighter to be convenient for users to carry.

Such portable telephones have a problem that, when the user uses only the telephone, in addition to using the telephone while driving a vehicle or a ship, the attention is reduced, causing an accident of a vehicle or a vessel.

In consideration of these problems, a mobile phone or a ship is equipped with a hands-free cradle for attaching a mobile phone or charging a battery-powered mobile phone in a predetermined space without a user carrying the mobile phone directly. It is the situation that is used.

Such hands-free cradles or adapters allow microphones and speakerphones to be mounted on the data input and output terminals of a mobile phone. Microphones are mounted close to the user's location, and speakerphones are mounted at a location where the user can easily listen. Doing. Thus, in order to connect and install the microphone and speakerphone and the battery power used in the vehicle or the vessel, the interior structure or the decoration and the like have to be removed or separated, which has a cumbersome disadvantage of having to install the wire.

In addition, when a mobile phone has an earphone / microphone input / output terminal, a separate handsfree and wired connection is used.

As described above, when the conventional portable telephone is mounted on a vehicle or a ship, the portable telephone can be connected to the portable telephone in a wired manner. Therefore, when the user makes a secret call, the usage of the handsfree is limited. In this case, after installing hands-free cradle or an adapter in a vehicle or a ship, it is difficult to control the microphone and speakerphone when making a private call or a secret call during use. there was.

In addition, when a call is received from a mobile phone, hands-free microphones and earphones connected by wires are inconvenient to be fitted around a user's ear or mouth, and there is a disadvantage in that a wired line is caught during a call.

In addition, when using a cradle or an adapter and a hands-free on which a mobile phone is mounted, there is a problem in that the mobile phone can be directly controlled when various controls such as checking the use state of the portable phone or adjusting the volume are required.

Thus, hands-free of patent application No. 98-52799 (Registration No. 281628), in which the applicant applied for the same patent, was issued. Therefore, the hands-free power was turned on, off, or the phone was automatically turned off or the earring, The portable telephone is mounted by configuring a wireless signal transceiver including an infrared diode for transmitting an infrared signal and an infrared transistor for receiving an infrared signal, as well as adjusting the positions of earphones and microphones to suit the user's conditions. By allowing wireless transmission and reception with a cradle and an adapter, the user has improved convenience in using a mobile phone.

Therefore, it is necessary to settle the hands-free adapter of the portable telephone which can transmit / receive in the infrared signal without the wireless hands-free and the wire.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. When the portable telephone is installed in a bag or clothes, or when the portable telephone is installed at a predetermined position such as a vehicle or a ship, the portable telephone is equipped with a wireless hands-free adapter. And handsfree, in particular, to provide a wireless handsfree adapter for a portable telephone to facilitate the use of the portable telephone by allowing a user to make a telephone call wirelessly between the hands-free of the patent application No. 98-52799, which is the same patent application. The purpose is.

1 is a block diagram according to the present invention,

2 is a front view of the wireless hands-free adapter of the portable telephone according to the present invention;

3 is a view showing the bottom of Figure 2,

4 is a side view of the portion A of FIG.

5 is a view showing the left side of FIG.

6 is a view showing the right side of FIG.

7 is an operation of the wireless hands-free adapter of the portable telephone according to the present invention,

8 is a circuit diagram of a wireless hands-free adapter of a portable telephone according to the present invention.

♣ Explanation of symbols for the main parts of the drawing ♣

10: adapter 12: main body

14: Earphone / Microphone Plug 16: Wireless Signal Transceiver

17, 20, 21: hinge 18: phone hanger

19: fixture 22: printed circuit board

24: battery 26: power charging terminal

28: mounting keyway 30: power switch

32: plug groove 34: hook groove

36: rubber sponge 38: battery cover

40: power indicator 42: preamplifier

44: radio signal modulator 45: multi-channel signal generator

46: Band Pass Filter 47: Signal Mixer

48: radio signal power amplifier 50: radio signal amplifier

52: front end 53: multi-channel signal selector

54: Audio Amplifier 55: Signal Switch

56: charge controller

The present invention, in order to achieve the above object, the earphone and the microphone end of the portable phone is connected to the earphone and the microphone plug is coupled to the hinge, and the plug is embedded when the earphone / microphone plug is folded inwards around the hinge A plug groove, a wireless signal transmitting and receiving unit configured at one end of the earphone / microphone plug to transmit and receive a wireless signal with the handsfree, a plurality of telephone hangers coupled by a hinge to mount and fix the portable telephone, and the telephone hanger hinges A plurality of hook grooves into which the hook is inserted when folded inside, a power switch configured to turn on or off the power applied to the side, a power charging terminal receiving power applied from the outside, and charging of the power Power indicator that visually displays the status, and formed on both sides It consists of a mounting keyway for the tablet, and a rubber sponge that is attached to the inside of the main body, the plug, and the inside of the telephone hanger to absorb shocks, and fixes the portable telephone. main body; A preamplifier for preamplifying the signal input from the earphone / microphone plug to a predetermined level, a wireless signal modulator for modulating the preamplified wireless signal in the preamplifier, and a multiplex for generating a frequency by receiving the signal from the wireless signal modulator A channel signal generator, a band pass filter for passing only a signal of a predetermined width among the signals modulated by the wireless signal modulator without attenuation, and a signal mixer for mixing a signal input from the band pass filter and a frequency generated by the multi-channel signal generator. And a wireless signal power amplifier for amplifying the power of the input signal mixed by the signal mixer to a predetermined level and outputting the signal as a wireless signal, and a wireless signal amplifier for amplifying the received input wireless signal to a predetermined level. Oscillation, mixing, A front end for inter-frequency separation and detection, a multi-channel signal selector for selecting various frequencies output from the front end, a signal switch for signal switching at a frequency selected from the front end and the multi-channel signal selector, and the signal An audio amplifier for amplifying a signal input from a switch and the front end into an audio signal of a predetermined level and outputting the same to an earphone / microphone plug; controlling power input from the power charging terminal and turning the power on or off by a power switch; A printed circuit board configured as a charge controller displaying an input / output state of a power source and mounted inside the main body; Patent application No. 98-52799, filed with the same person, which includes a battery cover for preventing the detachment of the battery for power supply inserted into the body and the power supply battery embedded in the main body and the printed circuit board. It can be accomplished by providing a wireless handsfree of the portable telephone of the call.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram according to the present invention, the present invention is to enable a wireless telephone call between the mobile phone (1) and the hands-free (2), between the mobile phone (1) and the mobile phone adapter 10 It is connected by a plug or a wire and is wirelessly connected to the adapter 10 and the hands-free, in particular, the hands-free 2 of the patent application No. 98-52799, which is patented by the same person.

2 to 7 are front, bottom, side, and operation of the present invention, the adapter 10 is mounted so that the portable phone 1 can be detached, the main body 12 of the adapter 10 is portable An earphone / microphone connector of the telephone 1 and a plug 14 are connected to each other, and a printed circuit board 22 for converting a voice signal output from the portable telephone 1 into a wireless signal and transmitting / receiving therein is built-in. There is a built-in battery 24 for power supply to supply power required by the

The main body 12 has an earphone / microphone plug 14 coupled to the earphone 17 and a microphone end of the portable telephone 1 and coupled to the hinge 17 at the lower left, and the earphone / microphone plug 14 is a hinge ( It is folded (refer also to the operation of FIG. 7) while being rotated at a rotational angle of 90 ° inward with respect to 17, and the plug 14 is joined to the plug groove 32 formed in the main body 12 in the folded state. .

At one end of the earphone / microphone plug 14, a wireless signal transmitting and receiving unit 16 is configured to transmit and receive a signal wirelessly with the handsfree 2.

The wireless signal transceiver 16 includes an infrared diode 16a for transmitting an infrared signal and an infrared transistor 16b for receiving an infrared signal. In the present invention, it will be readily understood that a radio signal of another frequency such as an AM signal or an FM signal may be used in addition to the infrared signal.

In addition, a plurality of telephone hangers 18 coupled to the hinges 20 are configured at the lower right end of the main body 12 to mount and fix the portable telephone 1, and the hangers 18 are centered on the hinges 20. And rotated at an angle of rotation of 90 °, that is, 180 °, to the inside and the outside, respectively (see also the operation of FIG. 7), and in the folded state, the hook 18 has a plurality of hook grooves 34 formed in the main body 12. ) Will be joined. In FIG. 4, the fastener 19 of the hook 18 is coupled to the hinge 21 to form a predetermined angle (preferably about 6 °) which is moved up and down about the hinge 21 so that the phone 1 It can be fixed.

In addition, the side of the main body 12, the power switch 30 is configured to turn on or off the power applied to the main body 12, the power charging terminal 26 is configured to supply power applied from the outside To charge the power supply. Also included is a power indicator 40 that visually displays the state of charge of the power source.

Mounting key grooves 28 are formed on both sides of the main body 12 so that the portable telephone 1 can be detached or fixed.

A rubber sponge 36 for absorbing shock is attached to the inside of the main body 12 and the plug 14 and the telephone hanger 18. The rubber sponge 36 is formed in the plug groove 32 and the hook groove 34 as the inner surface of the main body 12 and the earphone / microphone plug 14 and the telephone hook 18 are rotated inward of the main body 12. It is attached to prevent impact or friction when inserted.

In addition, in the circuit diagram of FIG. 8, the printed circuit board 22 configured in the main body 12 of the adapter 10 converts an audio signal generated by the portable telephone 1 into a radio signal and outputs or receives a radio signal. Is converted into an audio signal and outputted. The configuration includes a preamplifier 42 for preamplifying a signal input from the earphone / microphone plug 14 to a predetermined level, and a wireless signal preamplified by the preamplifier 42. A wireless signal modulator 44 for modulating a signal, a multi-channel signal generator 45 for generating a frequency by receiving a signal from the wireless signal modulator 44, and a predetermined width of a signal modulated by the wireless signal modulator 44. A band pass filter 46 for passing only a signal without attenuation, a signal mixer 47 for mixing a signal input from the band pass filter 46 and a frequency generated by the multi-channel signal generator 45, and the signal; mixer A wireless signal power amplifier 48 for amplifying the power of the signal input by mixing at 47 to a predetermined level and outputting it as a wireless signal, and a wireless signal amplifier 50 for amplifying the received input wireless signal to a predetermined level. And a front end 52 for oscillating, mixing, separating intermediate frequencies, and detecting a radio signal amplified from the wireless signal amplifier 50, and multiplexes for selecting various frequencies output from the front end 52. A channel signal selector 53, a signal switch 55 for signal switching at a frequency selected from the front end 52 and the multi-channel signal selector 53, the signal switch 55 and the front end 52 The audio amplifier 54 amplifies a signal input from the audio signal to a predetermined level and outputs it to the earphone / microphone plug 14, and controls the power input from the power charging terminal 26. On or off the power by the power switch 30 consists of sikimyeo charging controller 56 for displaying the output state of the power source.

In addition, the separation of the power supply battery 24 for supplying the charged power to the main body 12 and the printed circuit board 22 and the power supply battery 24 inserted into the main body 12 is prevented. Battery cover 38 for each is configured.

The power source battery 24 is capable of charging and discharging, and a rechargeable battery such as hydrogen ion or nickel cadmium is used.

The wireless hands-free adapter of the portable telephone of the present invention is equipped with an earphone / microphone plug 14 on the earphone / microphone input terminal of the portable telephone used for personal use, and is fixedly attached to the telephone hanger 18 so that the user does not lift the portable telephone directly. It is possible to make a telephone call with a portable telephone and an infrared wireless signal without hands free. When the power switch 30 configured in the main body 12 of the adapter 10 is switched on, the power battery is supplied to the adapter 10. It becomes an operation state, and can make a telephone call to the infrared wireless hands-free 2 through the adapter 10 having the call connection function of the portable telephone 1.

It can be easily understood by those skilled in the art that the present invention can be sufficiently changed, substituted, and changed in consideration of the wireless hands-free adapter of the portable telephone of the present invention, and other embodiments are within the scope of the present invention. It is contemplated that the scope of the invention is not limited.

As described above, the wireless hands-free adapter of the portable telephone of the present invention controls a wireless signal configured and transmitted / received in the main body to which the earphone / microphone input terminal of the portable phone and the earphone / microphone plug are connected and detachable from the portable telephone. And a printed circuit board for processing, and a power battery for supplying power charged by an adapter, and a wireless handsfree for making a telephone call with an infrared wireless signal through an infrared transceiver of the main body. It is possible to make a telephone call wirelessly hands-free within a predetermined distance, so that the portable telephone can be conveniently and easily used wirelessly in a state where the portable telephone is mounted on the adapter, thereby increasing the convenience of using the portable telephone.

Claims (3)

An earphone / microphone plug 14 to which the earphone and microphone ends of the portable telephone 1 are connected and coupled by a hinge 17, A plug groove 32 into which the plug 14 is inserted when the earphone / microphone plug 14 is folded inward with respect to the hinge 17; A wireless signal transmission / reception unit 16 configured at one end of the earphone / microphone plug 14 and transmitting / receiving a wireless signal with the hands-free 2; A plurality of telephone hangers 18 coupled by a hinge 20 for mounting and fixing the portable telephone 1, A plurality of hanger grooves 34 into which the hanger 18 is inserted when the telephone hanger 18 is folded inwardly around the hinge 20; Power switch 30 configured to turn on or off the power applied to the side, A power charging terminal 26 receiving power applied from the outside, A power indicator 40 that visually displays the state of charge of the power source, Formed on both sides and the mounting key groove 28 for removal and fixing, It is made of a rubber sponge 36 attached to the inside of the main body 12 and the plug 14 and the inside of the telephone hanger 18 to absorb shocks to fix the portable telephone 1, and input and output from the portable telephone 1. Wireless hands-free adapter of a portable telephone, characterized in that consisting of a main body 12 for transmitting and receiving a voice signal converted to a wireless signal. The method of claim 1, A preamplifier 42 for amplifying a signal input from the earphone / microphone plug 14 to a predetermined level in advance; A wireless signal modulator 44 for modulating the wireless signal pre-amplified by the preamplifier 42; A multi-channel signal generator 45 which receives a signal from the radio signal modulator 44 and selects and generates a frequency; A band pass filter 46 for passing only a signal having a predetermined width among the signals modulated by the radio signal modulator 44 without attenuation; A signal mixer 47 for mixing the signal input from the band pass filter 46 and the frequency generated by the multi-channel signal generator 45; A wireless signal power amplifier 48 for amplifying the power of the signal input by being mixed by the signal mixer 47 to a predetermined level and outputting the signal as a wireless signal; A wireless signal amplifier 50 for amplifying the received and input wireless signal to a predetermined level; A front end 52 which oscillates, mixes, separates intermediate frequencies, and detects a radio signal amplified from the radio signal amplifier 50; A multi-channel signal selector 53 for selecting various frequencies output from the front end 52; A signal switch 55 for signal switching at a frequency selected from the front end 52 and the multi-channel signal selector 53; An audio amplifier 54 for amplifying a signal input from the signal switch 55 and the front end 52 into an audio signal of a predetermined level and outputting the same to an earphone / microphone plug 14; It is configured in the main body 12 by a charge controller 56 that controls the power input from the power charging terminal 26, the power is turned on or off by the power switch 30, and displays the input and output status of the power A printed circuit board 22; Battery for preventing separation of the battery 24 for power supplying the power charged in the main body 12 to the main body 12 and the printed circuit board 22 and the power battery 24 inserted in the main body 12. Wireless hands-free adapter of a portable telephone, characterized in that the cover 38 is included. The wireless hands-free adapter of claim 1, wherein the wireless signal transceiver 16 includes an infrared diode 16a for transmitting an infrared signal and an infrared transistor 16b for receiving an infrared signal. .