KR100266275B1 - Hand free kit for cellular wireless communication - Google Patents

Abstract

The present disclosure relates to a hand free device of a cellular wireless communication terminal.

A hand free device of the disclosed cellular wireless communication terminal includes: a phone jack coupled in a cellular wireless communication terminal for transmitting and receiving information with a base station to interface information; An auxiliary base unit coupled to a location of a terminal to modulate and transmit information input through a wire in the phone jack to a high frequency, and receive and demodulate various types of information modulated at a high frequency from a public network and input the wire to the terminal through the phone jack; Auxiliary base apparatus and an auxiliary hand apparatus that transmits and receives various information through the wireless and generates a ring, a warning sound, etc. according to the various information received.

Accordingly, the user can easily receive a call even when the call is placed while the terminal is placed in a place other than the user's hand. Also, the hand free device allows the user to dial and call a phone number under any conditions. There is an advantage pursued

Description

Hand-free Device of Cellular Wireless Communication Terminal

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless hand free (WHF) device of a cellular phone or a personal digital assistant (PCS). More particularly, the present invention relates to a cellular wireless terminal or a personal digital assistant. The present invention relates to a hand-free device of a cellular wireless communication terminal which directly dials and transmits and receives wirelessly, and warns and warns when the terminal is separated from the terminal by a predetermined distance or when the power is exhausted.

In general, a mobile communication system sends a call message including a unique number of a called terminal through a call control channel of a base station to call a cellular wireless communication terminal or a PCS terminal, and then a response comes from the terminal. In this case, the currency path is provided.

However, according to the protocol of the cellular radio communication terminal specified in the call processing of the Electronics Industry Association, the cellular radio communication terminal may miss the call message transmitted by the base station in a special situation. It is supposed to fail to call.

Such a general wireless communication terminal includes a transmitting device and a receiving device, and is a device that enables two-way communication at a long distance by using a high frequency signal to connect a line between a portable device and a fixed device of a general wireless phone. Its purpose is to pursue the convenience and mobility of telephone calls.

As is well known, such a wireless communication terminal transmits a ring signal between the base station and the base station when the caller dials a telephone number to make a two-way call. By stopping the transmission of the call to form a communication path between the two parties to make a voice call, the user is to make a call in close contact with each terminal to the ear.

In the cellular wireless communication terminal or the PCS terminal according to the related art described above, when a ring signal arrives from the mobile communication exchange side, it is known that the terminal is pressed in close contact with the ear after pressing the call button provided on the operation panel. Can be.

Therefore, the conventional cellular wireless communication terminal or PCS terminal as described above seeks convenience and mobility of a telephone call at a long distance, but the terminal is placed in a user's pocket or handbag, a bag, or any place other than the user's hand. When a call is received from or when a call arrives in the subway or walking, the user has to pick up the phone by hand and has inconvenience in using it. There is a problem that arises.

Accordingly, the present invention excludes the inconvenience of having to hold a cellular radio communication terminal or a PCS terminal by hand in close contact with the ear and, in one aspect of the present invention, the terminal is not a user's hand. A main purpose of the present invention is to provide a hand-free device for a cellular wireless communication terminal which enables two-way wireless communication even when placed in a place.

In another aspect of the present invention, an object of the present invention is to prevent a loss of a terminal by generating a warning sound when the terminal (mobile phone) is separated from the terminal by a predetermined distance.

In still another aspect of the present invention, the subscriber's telephone number on the receiving side can be directly dialed without using the operation panel of the terminal to provide a communication path between the two parties.

As another aspect of the present invention, an object of the present invention is to provide protection from harmful electromagnetic waves generated by a terminal.

1 is a block diagram illustrating an embodiment provided in a description of a hand free device of a cellular wireless communication terminal according to the present invention;

FIG. 2 is a block diagram illustrating a hand free device wirelessly coupled to the cellular wireless communication terminal of FIG.

FIG. 2A is a block diagram illustrating the base apparatus of FIG. 1 in more detail.

Figure 2b is a block diagram showing in more detail the secondary hand device coupled to the base unit wirelessly.

<Description of the code | symbol about the principal part of drawing>

100: cell phone or PCS phone 100a: phone jack

200: base device 200a: codec unit

200b: first high frequency receiver 200c: first high frequency receiver

200c: first microprocessor 300: auxiliary hand device

300d: microphone amplifier 300e: microphone

300f: audio amplifier 300g: earphone

300h: operation panel 300i: warning / alarm generating unit

300j: warning display

A hand free device of a cellular wireless communication terminal according to an aspect of the present invention for achieving the above objects,

A phone jack coupled in a cellular wireless communication terminal for transmitting and receiving information with a base station to interface the information;

Auxiliary base apparatus coupled to the terminal of the terminal to modulate and transmit the information input through the wire from the phone jack to the high frequency, and receives and demodulates the various information modulated at high frequency from the public network to the terminal through the phone jack to the wire ; And

And an auxiliary hand device that transmits and receives various information through the auxiliary base device and wirelessly, and generates a ring, a warning sound, and the like according to the received various information.

Preferably, the auxiliary base device,

(1) codec means for converting digital information input from the phone jack into analog information and converting analog information sent from the auxiliary hand device into digital information and outputting the digital information;

(2) a first microprocessor for controlling the overall operation of the auxiliary base apparatus by determining various information input through the codec means and the power consumption state of the terminal;

(3) first high frequency transmission means for modulating the digital information obtained by the first microprocessor and the analog information obtained by the codec means to high frequency to be transmitted through an antenna; And

(4) first high frequency receiving means for demodulating the high frequency signal of the auxiliary hand device received by the antenna under the control of the first microprocessor and providing it to the codec means.

Preferably, the auxiliary hand device,

(1) second high frequency receiving means for receiving a high frequency signal transmitted from the auxiliary base apparatus and extracting digital information and an audio signal from the received high frequency signal;

(2) audio amplifying means for amplifying the extracted voice signal to a predetermined level and outputting the earphone to earphones;

(3) a second microprocessor for controlling the overall operation of the auxiliary hand device by determining the extracted digital information and its power consumption state;

(4) warning / alarm generating means for generating an alarm sound under the control of the second microprocessor to inform the terminal of a predetermined distance from the terminal and a state of power consumption and to generate an alarm signal when a ring signal arrives;

(5) a microphone for converting a voice signal in response to the earphone into an electrical signal; And

(6) second high frequency transmission means for modulating the voice signal input from the microphone and the data of the second microprocessor into a high frequency signal and transmitting the same to the auxiliary base apparatus.

Optionally, it further comprises an operation panel for dialing a telephone number and providing it to the second microprocessor.

Optionally, the apparatus further comprises a liquid crystal display for displaying various information obtained by the second microprocessor on a liquid crystal screen.

In this way, when a ring call arrives at a cellular wireless communication terminal or a PCS terminal, the free hand device wirelessly receives the ring signal and notifies the user, and the user does not use the terminal close to the ear. You can see that you can make voice calls.

As a result, it is easy to answer a call even if the call comes in when the terminal is placed in a place other than the user's hand, and the hand-free device allows the user to dial and call a phone number under any conditions. There is an advantage in which sex is pursued.

And, there may be a plurality of embodiments of the present invention, the following will be described in detail for the most preferred embodiment.

Through this preferred embodiment, it is possible to better understand the objects, features and advantages of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the error correction apparatus of the telephone number according to the present invention.

1 is a block diagram illustrating an embodiment provided in a description of a hand free device of a cellular wireless communication terminal according to the present invention.

According to the present embodiment, a cellular wireless communication terminal 100 for transmitting and receiving information with a base station not shown in the figure through an antenna ANT1 and a wired connection within the terminal 100 interface transmission and reception information. The phone jack 100a is detachably coupled to the lower portion of the terminal 100, and transmits information of the terminal 100 input through the phone jack 100a through the antenna ANT2 and transmits a high frequency signal from the public network to the antenna ANT2. Auxiliary base apparatus 200 that receives through the phone jack (100a) to the terminal 100 via a wire, and transmits and receives a variety of information via the auxiliary base apparatus 200 and the wireless and the various information received In accordance with the ring (Ring), the auxiliary hand device 300 for generating a warning sound and the like.

As shown in FIG. 2A, the auxiliary base device 200 converts the digital information DA1 input from the phone jack 100a of the terminal 100 into analog information according to the synchronization signal Sync and the clock CLK. A codec unit (200a) for outputting and converting analog information transmitted from the auxiliary hand device (300) into digital information (DA2), and outputting the terminal 100 according to the information input from the codec unit (200a). The first microprocessor 200d for controlling the overall operation of the auxiliary base device 200 by determining whether the power is exhausted and the ring signal has arrived, and the analog signal ATX and the first microprocessor inputted from the codec unit 200a. A first high frequency transmitter 200b for modulating the ring signal and various data inputted at 200d at high frequency, power amplification, and transmitting the power signal to the public network through the antenna ANT2, and the high frequency signal transmitted from the auxiliary hand device 300 Received via the antenna (ANT2) From the received high frequency signal to extract the audio signal and the digital audio information signal to a codec unit (200a), the digital information is composed of a first high-frequency receiving section (200c) for providing a first microprocessor (200d).

In addition, the auxiliary hand device 300, as shown in Figure 2b, the power supply unit 300k for supplying the system operating power, and the first high frequency transmission unit 200b of the auxiliary base device 200 by the supplied operating power A second high frequency receiver 300b which receives the high frequency signal transmitted from the antenna through the antenna ANT3 and demodulates the received high frequency signal to extract digital information and a voice signal; and the extracted digital information and power supply unit 300k. The second microprocessor 300c for controlling the entire operation of the auxiliary hand device 300 by determining the power consumption state of the power supply; The audio amplifier 300f and the second microprocessor 300c output the warning sound under the control of the micro-processor 300c to notify the terminal 100 of a predetermined distance and a state of power consumption, and at the arrival of the ring signal. Warning / alarm generating unit 300i for generating an alarm signal, a microphone 300e for converting and outputting a user's voice signal into an electrical signal, and amplifying and outputting an electrical signal input through the microphone 300e to a sufficient size. The microphone amplification unit 300d, the various data generated by the second microprocessor 300c, and the voice signal input from the microphone amplification unit 300d are modulated into a high frequency signal, and amplified by amplifying the power to the auxiliary base through the antenna ANT3. A second high frequency transmitter 300a for transmitting to the apparatus 200, an operation panel 300h for generating key data with various function keys and providing the key data to the second microprocessor 300c, and a second microprocessor 300c. And a liquid crystal display device 300j for displaying the operation state of the free hand device under the control of?.

The hand-free device of the cellular wireless communication terminal according to the present invention made as described above will be described in more detail with reference to FIGS. 1 and 2.

When using the hand free device (WHF) of the present invention, the cellular wireless communication terminal 100 should be basically set to the automatic reception mode. The reason for this is that different handset manufacturers currently have different ways of talking to hand free kits, and in particular, different manufacturers have different protocols.

In addition, the auxiliary base device 200 of the hand free device should be coupled to the lower part of the cellular wireless communication terminal 100 and the signal line should be coupled to the phone jack 100a.

In addition, the auxiliary hand device 300 of the hand free device is positioned in the form of a user's upper pocket, necklace, tweezers.

When the cellular radio communication terminal 100 is set to the automatic reception mode as described above and the auxiliary base device 200 of the hand free device is connected to the phone jack 100a by wire, the terminal 100 ) Automatically converts various signals, such as a ring signal, a sync signal (CLK), and various digital information, to the phone jack 100a according to a situation set by the user.

The signals converted to the phone jack 100a are supplied to the codec unit 200a of the auxiliary base device 200.

Here, the auxiliary base device 200 is operated by the power of the battery built in the cellular wireless communication terminal 100.

Subsequently, the codec unit 200a extracts the ring data input through the phone jack 100a of the cellular wireless communication terminal 100 and provides it to the first microprocessor 200d.

The first microprocessor 200d modulates the input ring data to a high frequency through the first high frequency transmitter 200d and transmits the ring data to the antenna ANT2.

The second high frequency receiver 300d of the auxiliary hand device 300, which is located on the user's top, receives the ring signal transmitted from the auxiliary base device 200 through the antenna ANT3 and provides it to the second microprocessor 300c. .

Here, the auxiliary hand device 300 uses power supplied from a separate power supply unit 300k, that is, power of a separate battery.

Subsequently, the second microprocessor 300c determines the input ring signal and notifies the user of the incoming call through the warning / alarm generating unit 300i using sound or vibration.

Then, when the user receiving the ring signal presses the call button of the operation panel 300h, a call loop is formed between the two parties.

If the digital information DA1, the synchronization signal Sync, and the clock CLK are output from the phone jack 100a of the cellular wireless communication terminal 100 in the state where the call loop is formed, the codec unit 200a of the auxiliary base apparatus 200 is output. The audio signal and data are extracted by synchronizing the input digital signal with the synchronization signal and the clock.

The extracted voice information is converted into an analog voice signal ATX and provided to the first high frequency transmitter 200d, and the extracted data is directly provided to the first microprocessor 200d.

The first high frequency transmitter 200b modulates the input voice signal ATX to a high frequency signal under the control of the first microprocessor 200d, and amplifies the modulated signal to a sufficient magnitude to provide the antenna ANT2. It is sent to the auxiliary hand device 300 through.

The second high frequency receiver ANT3 of the auxiliary hand device 300 receives the high frequency signal transmitted from the auxiliary base device 200 through the antenna ANT3 and demodulates the received high frequency signal to extract voice signals and data. do.

The extracted voice signal is amplified to a sufficient size through the audio amplifier 300f and then output through the earphone 300g so that the user can listen.

The voice signal of the user is converted into an electrical signal through the microphone 300e of the auxiliary hand device 300, amplified by the microphone amplifier 300d, and supplied to the second high frequency transmitter 300a.

The second high frequency transmitter 300a modulates the voice signal input by the control of the second microprocessor 300c to a high frequency signal, amplifies the power signal, and transmits the power to the auxiliary base apparatus 200 through the antenna ANT3.

The first high frequency receiver 200c of the auxiliary base device 200 receives the high frequency signal transmitted from the auxiliary hand device 200 through the antenna ANT2 and demodulates the voice signal into the audio signal and codes the demodulated voice signal AX. It provides to the part 200a.

The codec unit 200a converts the input analog voice signal into a digital signal and transmits it to the base station through the phone jack 100a and the cellular wireless communication terminal 100 to form a call between the two parties.

On the other hand, the second microprocessor 300c of the auxiliary hand device 300 periodically checks the power supply state of the power supply unit 300k during a call or during a normal period, when the power supply is exhausted. Run to inform the user of the need for charging.

Also, when the cellular wireless communication terminal 100 is separated from the cellular radio communication terminal 100 by a predetermined distance or more, the second microprocessor 300c detects the strength of the signal received by the second high frequency receiver 300b and alerts / alarms when the signal is weak. An alarm is generated through the generation unit 300i to prevent the loss of the cellular wireless communication terminal 100.

And if you want to complete the call when the other party puts the handset hook-on (hook-on) state, the trunk line is automatically disconnected, otherwise it is provided in the operation panel 300h of the auxiliary hand device 300 When the button is pressed, communication between the cellular wireless communication terminal 100 and the secondary hand device 300 is cut off.

In this case, as long as the other party does not interrupt the conversation, the user is continuously connected with the previous conversation. If you want to try to call again, pressing the call button provided on the operation panel (300h) of the auxiliary hand device 300 can continue to talk continuously unless the other party hangs up the call.

Then, when the user presses and dials a numeric key provided on the operation panel 300h of the auxiliary hand device 300 to make a call without using the operation panel of the cellular wireless communication terminal 100, the second microprocessor ( The dial number 300c displays the dial number on the liquid crystal display 300j and sends the dial number to the auxiliary base device 200 through the second high frequency transmitter 300a to form a communication path.

When the hand free device is not used, the state of the cellular wireless communication terminal 100 may be changed from the automatic reception mode to the normal mode.

In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the present invention may be variously modified and implemented by those skilled in the art.

Such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments should fall within the appended claims of the present invention.

It is clear from the above description that, according to the hand-free device of the cellular radio communication terminal according to the present invention, even if the cellular radio communication terminal or the personal mobile communication terminal is placed in a place other than the user's hand, the telephone can be easily received. The hand-free device has the effect of pursuing the mobility and convenience to dial the phone number under any conditions.

Claims (5)

A phone jack coupled in a cellular wireless communication terminal for transmitting and receiving information with a base station to interface the information; Auxiliary base apparatus coupled to the terminal of the terminal to modulate and transmit the information input via the wire from the phone jack to the high frequency, and receives and demodulates the various information modulated by the high frequency from the public network to the terminal through the phone jack to the wire ; And And an auxiliary hand device which transmits and receives various information via the auxiliary base device and wirelessly, and generates a ring, a warning sound, and the like according to the received various information. The method of claim 1, The auxiliary base device, (1) codec means for converting digital information input from the phone jack into analog information and converting analog information sent from the auxiliary hand device into digital information and outputting the digital information; (2) a first microprocessor for controlling the overall operation of the auxiliary base apparatus by determining various information input through the codec means and the power consumption state of the terminal; (3) first high frequency transmission means for modulating the digital information obtained by the first microprocessor and the analog information obtained by the codec means to high frequency to be transmitted through an antenna; And (4) a hand free of a cellular radio communication terminal, comprising: a first high frequency receiving means for demodulating a high frequency signal of an auxiliary hand device received by said antenna under the control of said first microprocessor and providing it to said codec means; Device. The method of claim 1, The auxiliary hand device, (1) second high frequency receiving means for receiving a high frequency signal transmitted from the auxiliary base apparatus and extracting digital information and an audio signal from the received high frequency signal; (2) audio amplifying means for amplifying the extracted voice signal to a predetermined level and outputting the earphone to earphones; (3) a second microprocessor for controlling the overall operation of the auxiliary hand device by determining the extracted digital information and its power consumption state; (4) warning / alarm generating means for generating an alarm sound under the control of the second microprocessor to inform the terminal of a predetermined distance from the terminal and a state of power consumption and to generate an alarm signal when a ring signal arrives; (5) a microphone for converting a voice signal in response to the earphone into an electrical signal; And (6) a hand free device of a cellular wireless communication terminal, comprising second high frequency transmission means for modulating a voice signal input from the microphone and data of the second microprocessor into a high frequency signal and transmitting the same to the auxiliary base apparatus. . The method of claim 3, wherein And a control panel provided by dialing a telephone number to the second microprocessor. The method of claim 3, wherein And a liquid crystal display device for displaying various types of information obtained by the second microprocessor on a liquid crystal display.