JPH05292022A - Automatic modem selecting system using radio telephone set - Google Patents

Abstract

PURPOSE: To eliminate the restriction on the installing location of a MODEM by eliminating the complexity in the peripheral of the MODEM caused by telephone lines by making the MODEM or telephone automatically selectable by radio. CONSTITUTION: A reception amplifying section 10 outputs high-frequency signals transmitted from the fixed device 1 of a radio telephone set to a demodulating section 11 after amplification. The section 11 detects an intermediate frequency by mixing the high-frequency signals with an oscillation frequency. A fist amplifying section 12 detects data signals and sound signals from the demodulated intermediate-frequency signals and amplifies and separates the detected signals. A microcomputer 13 controls all system operations of the radio telephone section by using the output data of the first amplifying section 12 and key signals from a key-inputting section 14. A switching section 15 selects a MODEM 3 or the loudspeaker 19 and microphone 20 of a portable device 2 under the control of the microcomputer 13. A ringing signal generating section 16 generates a ringing signal and outputs the signal to the MODEM 3 under the control of the microcomputer 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for automatically selecting a modem using a wireless telephone, and more particularly, a modem wirelessly connected to a computer by using a high frequency signal of the wireless telephone, even if there is no telephone line facility. Alternatively, the present invention relates to a modem automatic selection system using a wireless telephone capable of automatically selecting a telephone.

[0002]

2. Description of the Related Art FIG. 3 shows a conventional telephone / modem selection system. In this conventional telephone / modem selection system, a switching system unit 100 that switches and selects various data input from the telephone lines T and R, and a switching system unit 100 performs switching selection to transfer data from the telephone lines T and R. It comprises a telephone set 102 for sending and receiving signals, and a modem processor section 101 for processing the data transferred from the telephone lines T, R by the switching selection of the switching system section 100 and transferring it to the computer 103.

In this conventional telephone / modem selection system, the data signal transferred from the telephone lines T and R is transferred to the telephone set 102 or the modem processor section 101 for signal processing according to the switching selection of the switching system section 100.

Therefore, in the switching system section 100, when the telephone lines T and R are always connected by selecting the telephone set 102, the data transferred to the telephone lines T and R are transferred to the telephone set 102 through the switching system section 100. It Further, the voice signal and dialing signal from the telephone 102 are transferred to the telephone lines T and R through the switching system unit 105.

When the switching system section 100 is switched to the modem processor section 101 to use the modem, the loop of the telephone 102 is suspended. And
The data transferred and input from the telephone lines T and R are processed by the modem processor unit 101 through the switching system unit 100, and then the modem processor unit 1
It is provided as information to the computer 103 connected to 01.

[0006]

However, in the conventional telephone / modem selection system, in order to use the modem, the use of the modem is always performed through the switching system section 100 only by connecting to the telephone lines T and R. Will be possible. That is, since the modem is usually provided in the room connected to the computer, if there is no telephone line T, R in the room, bother the telephone line T, R.
There is a problem that R must be installed and connected to the modem through the switching system unit 100. as a result,
Not only is the location of the modem limited, but the telephone lines T and R complicate the area around the modem.

The present invention has been made to solve the above problems, and its purpose is to enable automatic selection of a modem or a telephone by radio, thereby reducing the complexity around the modem by the telephone line. It is an object of the present invention to provide a modem automatic selection system by a wireless telephone which is solved and the installation place of the modem is not limited.

[0008]

In order to achieve the above object, the present invention receives ring data sent from a fixed device in a receiving unit of a portable device, and checks a predetermined number of times of the received ring data to make a wireless communication. A microcomputer that controls the operation of the telephone system and a switching signal that is switched by a control signal that is output from the microcomputer, and sends the transmission signal of the fixed device that is received by the reception unit to the speaker through the first audio signal amplification unit or through the hybrid. By a control unit of the microcomputer and a switching unit which sends out to the fixed device through the transmitting unit of the portable device while transmitting to the modem, the transmitting signal of the microphone through the second audio signal amplifying unit and the transmitting signal of the modem through the hybrid. Generate ring signal and transfer to modem through hybrid Modem automatic selection system according to radiotelephone comprising a ring generator is to its gist.

According to a second aspect of the present invention, in addition to the first aspect, when the modem key of the key input section is operated, the microcomputer switches regardless of the number of times the ring data is received from the receiving section of the portable device. The gist of the invention is a modem automatic selection system by a radio telephone that controls the transmission unit and the reception unit of the portable device to the modem and controls the ring generation unit to send a ring signal to the modem.

[0010]

In the telephone mode, the microcomputer sends the transmission signal of the fixed device, which has received the switching unit by the receiving unit, to the speaker through the first audio signal amplifying unit and transmits the microphone through the second audio signal amplifying unit. The signal is switched to be sent to the fixed device through the transmitter of the portable device. And it enables telephone calls.

Further, the microcomputer automatically switches the switching unit to the modem when it checks the ring data from the fixed device received by the receiving unit of the portable device for a predetermined number of times. Then, the transmission signal of the fixed device received by the reception unit is sent to the modem through the hybrid, and the transmission signal of the modem passed through the hybrid is sent to the fixed device through the transmission unit of the portable device. At this time, the microcomputer controls the ring generator, generates a ring signal from the ring generator, and transfers the ring signal to the modem through the hybrid.

In the second aspect of the invention, when the modem key is operated, the microcomputer automatically switches the switching unit to the modem immediately regardless of the number of times of ring data from the fixed device. Then, data transfer is wirelessly performed with another modem.

[0013]

1 is a block diagram of a modem automatic selection system for a wireless telephone embodying the present invention. The automatic modem selection system is composed of a fixed device 1 and a portable device 2.

The fixed device 1 is connected to the telephone lines T and R, modulates and amplifies the transmission signal through the telephone lines T and R, and then sends it out through the antenna ANT1. Also,
The fixed device 1 amplifies and demodulates the high frequency signal received through the antenna ANT1 and sends it to the telephone lines T and R.

The portable device 2 is an antenna A of the fixed device 1.
The high frequency signal sent from NT1 is received through the antenna ANT2, amplified and demodulated at a constant level, and transferred to the computer 4 through the modem 3. The mobile device 2 also modulates and amplifies the transmission signal transferred from the modem 3 and sends it out through the antenna ANT2.

FIG. 2 is a detailed system configuration diagram of the portable device 2 shown in FIG. In FIG. 2, the reception amplification unit 10 amplifies a minute high frequency signal of the fixing device 1 received through the antenna ANT2 to a predetermined level and outputs the amplified high frequency signal to the demodulation unit 11. The demodulation unit 11 mixes the high frequency signal amplified and output from the reception amplification unit 10 with the local oscillation frequency to detect the intermediate frequency. The first amplifier 12 detects a data signal or a voice signal from the intermediate frequency demodulated by the demodulator 11 and amplifies and separates the signal.

The microcomputer 13 controls all systems of the radio telephone by selecting the data signal output from the first amplifying section 12 and the modem key 14a and the call key 14b provided in the key input section 14.

The switching section 15 has movable terminals C and D, fixed terminals a and b for the movable terminal C, and fixed terminals a'and b'for the movable terminal D. Then, when the movable terminal C is connected to the fixed terminal a and the movable terminal D is connected to the fixed terminal a ′ based on the output control signal of the microcomputer 13, the output audio signal of the first amplifier 12 is the first audio. The transmission audio signal output to the signal amplification unit 17 and input through the microphone 20 and the second audio signal amplification unit 18 is the second amplification unit 22.
Is output to. Further, when the movable terminal C is connected to the fixed terminal b and the movable terminal D is connected to the fixed terminal b ′ on the basis of the output control signal of the microcomputer 13, the output sound signal of the first amplifier 12 is sent to the hybrid 21. The second signal output from the modem 3 via the hybrid 21 is output.
It is output to the amplification unit 22.

The first audio signal amplifier 17 amplifies the audio signal of the first amplifier 12 selected by the switching unit 15 to a predetermined level and outputs the amplified audio signal to the speaker 19. The ring signal generator 16 generates a ring signal based on the control signal output from the microcomputer 13.

The hybrid 21 transfers the voice signal of the first amplifier 12 and the ring signal of the ring signal generator 16 selected by the switching unit 15 to the modem 3, and at the same time switches the voice signal accepted from the modem 3. Transfer to section 15.

The second amplification section 22 includes the switching section 15
The transmission voice signal from the second voice signal amplifier 18 and the voice signal of the modem 3 and the data signal output from the microcomputer 13 are amplified and output. The modulator 23 modulates the transmission signal amplified by the second amplifier 22 into a high frequency and outputs the high frequency modulated signal. The transmission amplifier 24 amplifies the high frequency signal modulated by the modulator 23 and radiates it through the antenna ANT2.

Next, the operation and effect of the automatic modem selection system for the wireless telephone configured as described above will be described. First, when the user uses it as a wireless telephone,
The call key 14 of the key input unit 14 provided in the mobile device 2.
Press b. In response to the key signal based on the operation of the call key 14b, the microcomputer 13 controls so that the movable terminals C and D of the switching unit 15 are connected to the fixed terminals a and a '. As a result, the transmission data of the microphone 20 is input to the second amplification unit 22 of the transmission unit through the second audio signal amplification unit 18.

The second amplification section 22 amplifies this transmission data and outputs it to the modulation section 23. Then, the modulator 23 modulates the input transmission data to a high frequency. The modulated high frequency signal is amplified by the transmission amplifier 24 and sent to the fixed device 1 through the antenna ANT2. Fixing device 1
When receiving the high frequency signal of the portable device 2 through the antenna ANT1, the device converts it into data and transmits it through the telephone lines T and R. The fixed device 1 also converts the data received through the telephone lines T and R into a high frequency signal and outputs the high frequency signal to the mobile device 2 through the antenna ANT1.

The fine high-frequency signal transmitted from the stationary device 1 is received and amplified by the receiving and amplifying unit 1 included in the receiving unit of the portable device 2.
It is amplified to a predetermined level through 0 and input to the demodulation unit 11. The demodulation unit 11 mixes this high frequency signal with the local oscillation frequency to detect the intermediate frequency and outputs it to the first amplification unit 12.

Then, the first amplifying section 12 detects a data signal and a voice signal from the intermediate frequency demodulated by the demodulating section 11. Then, the first amplifying unit 12 outputs the audio signal to the movable terminal C of the switching unit 15 and outputs the data signal to the microcomputer 13.

The audio signal output to the switching unit 15 is amplified to a predetermined level by the first audio signal amplification unit 17 through the movable terminal C and the fixed terminal a and output to the speaker 19. In addition, the audio signal from the microphone 20 is amplified by the second audio signal amplification unit 18, and then amplified by the second amplification unit 22 through the fixed terminal a ′ and the movable terminal D of the switching unit 15. The amplified audio signal is modulated into a high frequency signal by the modulator 23, amplified by the transmission amplifier 24, and sent to the fixed device 1 through the antenna ANT2.

When making a call using the modem 3 in such a state, the modem key 1 of the key input unit 14
Press 4a. The microcomputer 13 recognizes the operation of the modem key 14a and connects the movable terminals C and D of the switching unit 15 to the fixed terminals b and b '. The movable terminals C and D are fixed terminals b,
When connected to b ′, the signal transferred from the computer 4 is processed by the modem 3 and transmitted to the switching unit 15 through the hybrid 21. Switching unit 1
The signal transmitted from the computer 4 to the signal 5 is amplified to a predetermined level by the second amplification section 22 of the transmission section through the fixed terminal b ′ and the movable terminal D and input to the modulation section 23.

The modulator 23 modulates the input transmission signal into a high frequency and amplifies it through the transmission amplifier 24. The transmission amplification unit 24 uses the amplified high frequency signal for the antenna AN.
Telephone line T, R sent to fixed device 1 through T2
Will be output to.

Further, the telephone lines T and R and the fixing device 1
As described above, the transmission signal of the other modem received through the output terminal is output to the hybrid terminal 21 through the reception amplification unit 10, the demodulation unit 11, the first amplification unit 12, and the movable terminal C and the fixed terminal b of the switching unit 15 of the mobile device 2. It Then, the transmission signal is transferred from the hybrid 21 to the modem 3.

When a ring signal is received from another modem through the telephone lines T and R, the fixed device 1 detects the ring signal, modulates the data based on the ring signal into a high frequency, and then transmits it through the antenna ANT1. It is sent to the mobile device 2. The reception amplification unit 10 of the mobile device 2 amplifies the high frequency signal transmitted from the fixed device 1 and demodulates the demodulation unit 1
Output to 1. The demodulation unit 11 mixes this high frequency signal with the local oscillation frequency and outputs the intermediate frequency to the first amplification unit 12.

The first amplifier 12 detects a ring signal from the input intermediate frequency and outputs it to the microcomputer 13. When the microcomputer 13 receives a predetermined number of ring data,
The ring generator 16 is controlled to output the ring signal to the modem 3 through the hybrid 21. Further, in accordance with this, the microcomputer 13 causes the movable terminal C of the switching unit 15,
D is connected to the fixed terminals b and b '.

Therefore, the signals of other modems transmitted from the fixed device 1 are received and amplified by the reception amplification unit 10 and the demodulation unit 1 of the portable device 2.
1, the first amplification unit 12, the movable terminal C, the fixed terminal b, the hybrid 21, and the modem 3 to transfer to the computer 4. On the other hand, the transmission signal sent from the computer 4 includes a modem 3, a hybrid 21, a fixed terminal b ′, a movable terminal D, a second amplification section 22, a modulation section 23, and a transmission amplification section 24.
And is sent to the fixed device 1 through the antenna ANT2 and transferred to another modem.

If the modem key 14a of the key input unit 14 is pressed while ring data is being input to the microcomputer 13, the microcomputer 13 immediately sets the movable terminals C and D to the fixed terminal b regardless of the number of times of ring data. , B '. At the same time, the microcomputer 13 causes the ring signal generator 16 to
Is controlled to transfer the ring signal to the modem 3 through the hybrid 21 to receive a call.

As described above in detail, in the present embodiment, when the portable device 2 receives and analyzes the ring data sent from the fixed device 1 of the wireless telephone, and the ring signal is received a predetermined number of times, the switching section 15 Since it is automatically switched to the modem 3, the communication of the modem 3 can be performed without directly connecting the telephone lines T and R to the modem 3.

In the telephone mode, since the switching unit 15 is switched to the transmitter / receiver (speakers 19, 20 etc.), telephone communication can be performed wirelessly. Further, when the modem key is operated, the microcomputer 13 automatically switches the switching unit 15 to the modem immediately regardless of the number of times of the ring data from the fixed device 1, so that the data transfer between other modems can be performed immediately by wireless. Will be held in.

[0036]

As described in detail above, according to the present invention,
It is possible to automatically select a modem or a telephone by radio, which eliminates the complexity around the modem by the telephone line and has an excellent effect that the place where the modem is installed is not limited.

[Brief description of drawings]

FIG. 1 is a block diagram of a modem automatic selection system for a wireless telephone embodying the present invention.

FIG. 2 is a detailed system configuration diagram of a mobile device in a modem automatic selection system of a wireless telephone embodying the present invention.

FIG. 3 is a block diagram of a conventional telephone / modem selection system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed device 2 Mobile device 3 Modem 4 Computer 10 Reception amplification part 11 Demodulation part 12 1st amplification part 13 Microcomputer 14 Key input part 14a Modem key 15 Switching part 16 Ring signal generation part 22 2nd amplification part 23 Modulation part 24 Transmission amplification Department T, R Telephone line

Claims (2)

[Claims] 1. A receiving unit (10, 11, 12) of a mobile device (2) for receiving ring data sent from a fixed device (1).
And a microcomputer (13) that controls the operation of the system of the wireless telephone by checking a predetermined number of times of the received ring data, and switching control by a control signal output from the microcomputer (13). (10, 11,
The transmission signal of the fixed device (1) received in 12) is sent to the speaker (19) through the first audio signal amplification section (17), or the modem (3) through the hybrid (21).
To the second audio signal amplifier (1
The transmission signal from the microphone (20) passing through 8) or the transmission signal from the modem (3) passing through the hybrid (3) is passed through the transmission unit (22, 23, 24) of the portable device (2) to the fixed device (1). ), And a ring generator (16) for generating a ring signal according to the control signal of the microcomputer (13) and transferring it to the modem (3) through the hybrid (21). Modem automatic selection system by. 2. The microcomputer (13) comprises a key input section (1
When the modem key (14a) of 4) is operated, the switching unit (15) regardless of the number of times of ring data received from the receiving unit (10, 11, 12) of the mobile device (2).
To control the transmitter (22, 23, 2) of the portable device (2).
4) Switching the receiving section (10, 11, 12) to the modem (3) and controlling the ring generating section (16) to send a ring signal to the modem (3).
An automatic modem selection system using a wireless telephone set forth in.