KR200256982Y1 - A apparatus for both frs and portable of rf telephone - Google Patents

Abstract

The present invention relates to a portable device of a radiotelephone, and more particularly, to a portable radio-enabled portable device of a radiotelephone which can be used as a living radio. The present invention, and a radio unit for transmitting and receiving a radio signal with a fixed device; A call circuit unit for processing a voice signal according to a call with the fixing device; A keypad having a plurality of function keys and a dial 3 * 4 key to perform various function setting and operation or dial input; A duplexer for outputting a high frequency signal received from a radio antenna (ANT) and outputting a supplied transmission frequency signal to the antenna (ANT); A receiving unit for amplifying a high frequency signal supplied through the duplexer and making it again an intermediate frequency, detecting and demodulating the intermediate frequency to extract a voice signal; A transmitter for amplifying a transmission frequency signal modulated in a predetermined form and radiating it to the air through the duplexer and an antenna (ANT); A voice amplifier for amplifying the voice signal supplied through the wireless receiver and the voice signal supplied through the call circuit unit and outputting the amplified voice to the outside through the speaker SPK; A voice modulator for modulating a voice signal input through a microphone into a transmission frequency signal; A call selection key for performing transmission and reception switching according to radio signal communication; According to the selection input from the user, the active state of the keypad according to the channel formation with the fixing device, the driving of the wireless unit, the call circuit unit, the voice amplifier unit is controlled, the call selection key according to the channel formation with a predetermined radio and And a controller for controlling an active state of a channel selection key, driving of the duplexer, the transmitter and the receiver, the voice modulator, and the voice amplifier.

Description

A walkie-talkie portable device for wireless phones {A APPARATUS FOR BOTH FRS AND PORTABLE OF RF TELEPHONE}

The present invention relates to a portable device for a radiotelephone, and more particularly, to a portable device for a radiotelephone that can be used as a living radio.

Normally, a living radio refers to a radio signal processing apparatus that can be easily used by all users without the permission of the radio station or other radio taxes and royalties.

In the case of the living radio, even if not necessarily through a regular mobile phone company, such as a mobile phone, if the purchase of the corresponding product, there is an advantage that can be used immediately after purchase.

Household radios having such characteristics can be diversified in their use, and they are widely used because they do not incur additional costs for use as users.

However, in the case of a living radio, if you want to enjoy the advantages of the use as described above, there is no choice but to buy a relatively expensive product separately.

This led users to hesitate to purchase living radio products in a number of ways due to financial problems, despite the benefits incurred in the variety or convenience of their use.

In addition, a typical walkie-talkie should be configured with at least two units to form a channel, which means that at least two corresponding products must be purchased for use of the walkie-talkie.

On the other hand, with the widespread use of other wireless devices such as mobile phones and home wireless phones, the purchase of separate walkie-talkies and the purchase of two or more radios are unnecessary for users. Cause increase problem.

Thus, although ordinary users have advantages in terms of cost and convenience of use, the use of home radiotelephones and mobile phones is preferred to the use of household radios.

In the present invention, a user can use a living radio function at the same time by purchasing a normal home wireless telephone without purchasing a separate radio, and also can use the home radio telephone function as a living radio combined To provide a portable device.

In other words, the object of the present invention is to provide a mobile phone portable device function other than the normal mobile phone portable device. The present invention provides a portable radio device for use with a living radio of a wireless telephone that can also be used as a living radio.

The present invention to achieve the above objects,

A radio unit for transmitting and receiving radio signals to and from the fixed device;

A call circuit unit for processing a voice signal according to a call with the fixing device;

A keypad having a plurality of function keys and a dial 3 * 4 key to perform various function setting and operation or dial input;

A duplexer for outputting a high frequency signal received from a radio antenna (ANT) and outputting a supplied transmission frequency signal to the antenna (ANT);

A receiving unit for amplifying a high frequency signal supplied through the duplexer and making it again an intermediate frequency, detecting and demodulating the intermediate frequency to extract a voice signal;

A transmitter for amplifying a transmission frequency signal modulated in a predetermined form and radiating it to the air through the duplexer and the antenna (ANT);

A voice amplifier for amplifying the voice signal supplied through the wireless receiver and the voice signal supplied through the call circuit unit and outputting the amplified voice to the outside through the speaker SPK;

A voice modulator for modulating a voice signal input through a microphone into a transmission frequency signal;

A call selection key for performing transmission and reception switching according to radio signal communication;

According to the selection input from the user, the active state of the keypad according to the channel formation with the fixing device, the driving of the wireless unit, the call circuit unit, the voice amplifier unit is controlled, the call selection key according to the channel formation with a predetermined radio and And a control unit for controlling the activation state of the channel selection key, the duplexer, the transmitter and receiver, the voice modulator, and the voice amplifier.

1 is a view showing an embodiment of a portable radio-compatible portable device of a wireless telephone according to an embodiment of the present invention.

Figure 2 is a block diagram of a fixed device to which the combined portable radio device of the walkie-talkie of the radiotelephone according to the preferred embodiment of the present invention.

Figure 3 is a block diagram of a portable walkie-talkie portable device of a wireless telephone according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same reference numerals as much as possible even if they are displayed on different drawings. In addition, many specific details, such as specific processing flows, are set forth in the following description in order to provide a more general understanding of the present invention. It is to be understood that the present invention may be practiced without these specific details. It will be obvious to them. And a detailed description of known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a view showing an embodiment of a portable radio-enabled portable device of a wireless telephone according to a preferred embodiment of the present invention.

Referring to this, the radiotelephone fixing device 100 forms a wireless channel with the portable radio device 200 for the living radio according to the implementation of the present invention. This is the case when used as a home wireless telephone.

The wireless channel formed with the fixing device 100 is made through the use of a wireless signal in the 900MHz band that is commonly used as a home wireless telephone frequency.

Since the fixing device 100 and the wireless channel are formed, the function of the portable device used in the conventional wireless telephone is performed as it is.

In addition, the portable radio device 200 combines the radio with the radio 300 according to the embodiment of the present invention. This is a state when the portable device is used as a living radio outdoors or by a separate need.

The radio channel formed with the living radio 200 is made through the use of a radio signal in the 27 or 448 MHz band that is usually used as a radio frequency of the radio.

In this case, the dual walkie-talkie portable device 200 performs an operation according to the use of a normal walkie talkie.

Accordingly, the portable radio apparatus 200 for both walkers according to one embodiment of the present invention can form a radio channel as a signal having a different frequency band, and uses a predetermined radio signal modulation and demodulation scheme for each.

FIG. 2 is a block diagram of a fixing device to which a portable radio-enabled portable device of the present invention is subscribed, in particular, a block diagram of a fixing device of a wireless telephone having an automatic answering function.

Referring to this, the fixing device 100 includes a wireless unit 211, a handset 212, an analog switch 213, a microphone amplifier 214, a microphone 215, a speaker amplifier 216, and a speaker 217. ), Call circuit unit 218, telephone line switch 219, ringer 220, ring detector 221, melody circuit unit 222, control unit 223, memory 224, display unit 225, keypad 226 ), A CID (Caller Identification) detector 227, and an automatic answering function 230, the automatic answering function is provided with a codec 231, a voice memory 232 and a voice control unit 233. .

The wireless unit 211 transmits and receives a radio signal between the fixing device 100 and the portable radio device 200 as well as the living radio. As an example, the wireless unit 211 filters and amplifies an RF radio signal received from the portable radio-communication device 200 through an antenna ANT by only a reception frequency (eg, 914 MHz) of a corresponding channel band. After that, a signal passing through the first and second intermediate frequencies IF is output to the analog switch 213, and when a signal is transmitted to the portable device 200, a corresponding frequency is generated for each channel to generate a transmission frequency band (for example, 959MHz band) is converted into a carrier signal and transmitted and radiated through the antenna.

Although not shown, the handset 212 is a handset composed of a transmitter and a receiver, and transmits a user's voice to the call circuit unit 218 through the analog switch 213 through a microphone provided in the transmitter, and the call The voice signal transmitted from the circuit unit 218 is output from the handset to perform a voice call.

The analog switch 213 is the wireless unit 211, handset 212, microphone amplifier 214, speaker amplifier 217, call circuit unit 218, melody circuit unit 222 and the answering machine ( 230 is in charge of switching the circuit according to the operation of each component.

The microphone amplifier 214 amplifies and outputs an audio signal input through the microphone (MIC) 215.

The speaker amplifier 216 amplifies an audio signal input through the call circuit unit 218 and outputs the audio signal to the outside through the speaker 217.

The call circuit unit 218 is a voice network and is connected between the analog switch 213 and the telephone line switch 219 to process various tone signals and voice signals.

The telephone line switch 219 includes a hook switch, and performs a function of forming or blocking a call path with the telephone line under the control of the controller 223.

The ringer 220 is connected to the telephone line, the speaker 217 and the ring detector 221, and is a tone ringer.

The ring detector 221 is connected to the telephone line and detects a ring signal input to the telephone line in an on-hook state and notifies the controller 223 of the incoming state.

The melody circuit unit 222 selects and outputs various melodies under the control of the controller 223.

The controller 223 controls operations of various components according to the function of the phone, and controls a trunk line call and a call with the portable apparatus 200.

The memory 224 stores various functional programs of the phone, and stores various kinds of data under the control of the controller 223. For example, the memory 224 may use an EEPROM.

The display unit 225 is composed of a plurality of LEDs (light emitting diodes) and / or LCDs (liquid crystal display devices), and displays the current state diagrams and general conditions of the phone under the control of the control unit 223. The calling party number and other related information which are received on the display unit 225 are displayed.

The keypad 226 includes a plurality of function keys and a dial 3 * 4 key to perform various function setting and operation or dial input. Through the key operation on the keypad 226, it is possible to set the alarm generation function according to the embodiment of the present invention.

The caller identification (CID) detection unit 227 detects data (CID) for caller identification from the ring signal received through the telephone line and applies it to the controller 223.

The other party's telephone number is included on the CID, and other information such as time information and name may be further included.

The automatic answering unit 230 outputs and stores an outgoing message, which is a guide message for an automatic response, and an incoming message, which is a recorded message. The analog switch 213 The call circuit unit 218 is connected to the call circuit unit 218 through the control of the control unit 223, or records the voice message received from the call circuit unit 218 or reproduces the recorded message as a voice signal. Output to In the implementation of the present invention performs a function of converting the stored caller number or the phone number stored in the absent state into voice and then forwarding it to a predetermined contact.

The codec 231 of the automatic answering function 230 converts the voice signal received in the recording mode into digital data, and converts the digital voice data output in the playback mode into an analog voice signal to the call circuit unit 218. Output

The voice memory 232 records a voice message in a designated area under the control of the voice controller 233 in the recording mode, and outputs a voice message recorded in a designated area under the control of the voice controller 233 in the playback mode. .

The voice controller 233 compresses and outputs the voice data output from the codec 231 in the recording mode under the control of the controller 223, and outputs the compressed data. The decoded information is decoded and output to the codec 231. The voice controller 233 may use a digital signal processor (DSP) and has a recording table that stores various information of a message recorded therein.

Figure 3 is a block diagram of a portable radio-enabled portable device of a wireless telephone according to an embodiment of the present invention.

This includes a wireless unit 311, a call circuit unit 312, a microphone and a speaker, a control unit 316, a memory 319, a display unit 320, a keypad 321, a duplexer 314 for a living radio, a transmitter 324, A receiver 325, a voice modulator 315, a voice amplifier 313, a call select key 323, and a channel select key 322 are provided. And although not shown in the drawings, it is provided with a configuration provided in a conventional portable device and a walkie-talkie.

The wireless unit 311 transmits and receives a wireless signal between the fixing device 100 and the portable radio device 200 for both living radios. The radio unit 311 filters and amplifies the RF radio signal of the 900 MHz band received from the fixing device 100 through the antenna ANT by receiving only a reception frequency (eg, 959 MHz) of a specific channel band, Outputs a signal passing through the first and second intermediate frequencies IF to the portable device controller 316 or the call circuit unit 312, and generates a corresponding frequency for each channel when transmitting a signal to the fixed device 100, thereby transmitting a frequency band A carrier signal (for example, 914 MHz) is converted into a carrier signal and transmitted and radiated through the antenna.

The call circuit unit 312 processes a voice signal according to a call with the fixing device 100.

The memory 319 stores a program necessary to perform a function of the dual-purpose portable device 200, and stores various data to be controlled by the controller 316.

The display unit 320 is composed of a plurality of LEDs (light emitting diodes) and / or LCDs (liquid crystal display devices), and displays the current state and various conditions of the portable device and the telephone under the control of the portable device controller 316.

The keypad 321 includes a plurality of function keys and a dial 3 * 4 key to perform various function setting and operation or dial input.

The duplexer 314 outputs a high frequency signal received from the radio antenna ANT to the radio receiver 325, and outputs a transmission frequency signal supplied from the radio transmitter 324 to the antenna ANT.

The radio signal transmitted and received is a radio signal in the 27 or 448 MHz band.

The wireless receiver 325 amplifies the high frequency signal supplied through the duplexer 314 and makes it back to an intermediate frequency, detects and demodulates the intermediate frequency, and outputs the extracted voice signal to the voice amplifier 313. do.

The voice amplifier 313 amplifies the voice signal supplied through the wireless receiver 325 and outputs the voice signal to the outside through the speaker SPK. The amplified voice signal from the fixing device 100 supplied through the call circuit unit 312 is output to the outside through the speaker SPK.

The voice modulator 315 modulates the voice signal input through the microphone into a transmission frequency signal under the control of the controller 316 and outputs it to the wireless transmitter 324.

The wireless transmitter 324 radiates a radio signal amplified by the voice modulator 315 to the air through the duplexer 314 and the antenna ANT.

The call selection key 323 is, for example, a PTT switch to switch transmission and reception by turning the key on or off each time a communication is performed.

The channel selection key 322 selects various wireless channels. And a battery unit (not shown) is provided to supply the operating power required for each component of the portable radio-compatible portable device.

According to a user's request, the controller 316 forms a wireless channel with the fixing device 100 or controls the respective components to form a wireless channel with the living radio 300.

For example, in a case where a wireless channel is formed with the fixing device 100, that is, when it is used as a home wireless telephone, a key input result of the keypad 321 or a radio from the fixing device 100 is used. According to the signal transmission, driving control of the wireless unit 311, the call circuit unit 312, the display unit 320, the memory 319, and the voice amplifier 313 is performed.

On the contrary, in the case where it is to be used as a living radio, the duplexer 314, the transmitting unit 324, and the receiving unit 325 in accordance with the input result of the call selection key 323 and the channel selection key 322. The driving of the voice modulator 315, the voice amplifier 313, and the display 320 is performed.

On the other hand, the failure device 100 of the wireless telephone according to an embodiment of the present invention shown in FIG. 2 may be used by registering a plurality of portable devices and a plurality of portable walkie-talkie device in some cases, the fixed The device 100 and the portable dual-purpose device 200 have a power supply unit for supplying AC power or battery power to an internal circuit, which is omitted since it is a general matter.

In addition, specific circuits and functions not shown in the examples of FIGS. 2 and 3 are already known generalized techniques, and thus only those descriptions are omitted herein, and the present invention is limited to the components and functions of FIGS. 2 and 3. It should be noted that this is not possible.

As an implementation of the present invention as described above, the user can use the home radio function at the same time by purchasing a normal home wireless telephone, without the purchase of a separate living radio, and also can use the home wireless telephone function as it is There is this.

Claims (3)

In the portable device of the walkie-talkie combined use radio telephone for living, A radio unit for transmitting and receiving radio signals to and from the fixed device, Call circuit unit for processing a voice signal according to the call with the fixing device 100, Keypad with multiple function keys and dial 3 * 4 keys to perform various function setting and operation or dial input, A duplexer for outputting a high frequency signal received from a radio antenna (ANT) and outputting a supplied transmission frequency signal to the antenna (ANT); A receiver for amplifying a high frequency signal supplied through the duplexer and making it into an intermediate frequency again, extracting a voice signal by detecting and demodulating the intermediate frequency; A transmitter for amplifying a modulated transmission frequency signal and radiating it into the air through the duplexer and the antenna ANT; A voice amplifier for amplifying the voice signal supplied through the wireless receiver, the voice signal supplied through the call circuit unit, and outputting the voice signal to the outside through the speaker SPK; A voice modulator for modulating a voice signal input through a microphone into a transmission frequency signal; A call selection key for performing transmission and reception switching according to radio signal communication; According to the selection input from the user, the active state of the keypad according to the channel formation with the fixing device, the driving of the wireless unit, the call circuit unit, the voice amplifier unit is controlled, the call selection key according to the channel formation with a predetermined radio and And a control unit for controlling an active state of a channel selection key, the duplexer, the transmitter and the receiver, the voice modulator, and the voice amplifier. The method of claim 1, wherein the wireless unit, And a portable device of a living walkie-talkie combined radio telephone, characterized in that a channel is formed by transmitting and receiving a radio signal of 900 MHz frequency band with the fixed device. The method of claim 1, wherein the transmitting unit and the receiving unit, A portable device for a walkie-talkie wireless phone, characterized in that a channel is formed by transmitting and receiving radio signals in a 27/477 MHz frequency band with a predetermined radio.