JPH0621854A - Radio talking communication system - Google Patents

Abstract

PURPOSE:To allow the system to be immune to noise and to secure the confidentiality through the use of a ciphering device by sending a digital data signal without any modification. CONSTITUTION:A data terminal equipment 10 implements input output of digital data and power supply through a built-in digital data communication interface 11. A data module device 12 is provided with a digital data communication interface 13 used to implement input output of the digital data from the data terminal equipment 10 and to receive power supply, a speed converter 14 converting the transmission speed of the digital data, a data input output terminal 15, a power supply section 16 receiving power supply from the data terminal equipment 10 to supply power to each block in the data module device 12 and a power supply terminal 17. Furthermore, a radio talking communication equipment 18 of the digital system is provided with an input output terminal 21, a power supplying feeding terminal 22, a power supply section 24, a transmitter/ receiver/CODEC section 23, a changeover device 19 and a ciphering device 20 ciphering data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio communication system which can perform not only voice communication but also data communication using radio.

[0002]

2. Description of the Related Art In recent years, wireless communication devices have rapidly become popular because they are capable of talking anywhere. Further, in response to data communication needs, data communication is currently performed using a wireless communication device, a modulation / demodulation device, and a data terminal device. On the other hand, the wireless system is changing from an analog system to a digital system in order to effectively use radio waves.

A conventional analog radio communication system will be described below. FIG. 5 shows a system configuration in the case where a data terminal device performs data communication using an analog wireless communication device and a modulation / demodulation device. In FIG. 5, reference numeral 50 denotes a data terminal device, which includes a digital data communication interface 51. A modulator / demodulator 52 includes a digital data communication interface 53. Reference numeral 54 is an analog type wireless communication device, which is equipped with a switch 55 for talking and data communication, and operates by a battery 56.

The operation of a data terminal that performs data communication using the analog type wireless communication apparatus configured as described above will be described below. First, the data terminal device 50 has an interface 51 for digital data communication.
Input / output of digital data via. Modem 5
The numeral 2 inputs / outputs digital data from the data terminal device 50 through the interface 53 for digital data communication, converts the digital signal and the analog signal in the voice band by the internal modulation / demodulation unit, and transmits / receives the analog signal in the voice band. Input and output through the section. The analog signal in the voice band from the modulator / demodulator 52 is input / output to / from the analog type wireless communication device 54 via the switch 55 between the call and the data communication. Switch 5 between the call and the data communication
When 5 is set to the call side, the microphone / speaker is connected to the wireless section for voice transmission, and when it is set to the data communication side, the analog signal in the voice band from the modulator / demodulator 52 is sent to the wireless section. It is connected and data is transmitted.
In addition, the analog wireless communication device 54 has a battery 5
Power is supplied from 6 and operation is performed.

[0005]

However, in the above-mentioned conventional configuration, since the digital data signal is purposely converted into an analog signal in the voice band, it is vulnerable to noise, and because the data is not encrypted, it is secret. Security, the wireless communication device operates on a battery, and the communication time is limited.Therefore, space is required for data communication by the data terminal device, the modulator / demodulator device, and the wireless communication device. There was a problem that it needed a lot.

The present invention solves the above problems, and provides a radio communication system which is space-saving, does not limit the communication time, is resistant to noise, and is capable of ensuring confidentiality and data communication. The purpose is to do.

[0007]

To achieve this object, a radio communication system according to the present invention includes a data terminal device for inputting / outputting digital data and supplying power through a built-in digital data communication interface. , An interface for digital data communication for receiving input / output of digital data and power supply from the data terminal device, a speed converter for converting the transmission speed of digital data, and a power supply to each part by receiving power supply from the data terminal device , A data module device having a power supply section, a data input / output terminal, and a power supply terminal, a data input / output terminal and a power supply / receiving terminal for receiving supply of digital data and power from the data module device, and the data module Power is supplied to each part from the device via the power receiving terminal. Transmitter-receiver-CODEC by the power supply unit for supplying the input analog / digital conversion of speech carried
Section, a switch for switching between call and data communication, and a digital wireless call communication device having an encryption device for encrypting data, and the digital wireless call communication device and the data module device are integrated. It has a structure characterized by being a structure.

[0008]

With the above structure, the present invention is resistant to noise by transmitting a digital data signal as it is without converting it to an analog signal, secrecy can be secured by an encryption device, and the data terminal device can By supplying electric power to the module device and the wireless communication device, the communication time is not limited, and the space can be saved by integrating the digital wireless communication device and the data module device.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration when the radio communication system is used for a call or data communication. The data terminal device 10 performs input / output of digital data and power supply via a built-in digital data communication interface 11. The data module device 12 includes a digital data communication interface 13 for receiving input / output of digital data and power supply from the data terminal device 10, a speed converter 14 for converting a transmission speed of digital data, and a data input / output. The data module device 12 receives power from the terminal 15 and the data terminal device 10.
A power supply unit 16 for supplying electric power to each block therein and a power supply terminal 17 are provided. The digital radio communication device 18 has a data input / output terminal 21 for receiving data and power from the data module device 12.
A power receiving terminal 22 and the data module device 12
From the power receiving terminal 22 to supply power to each unit, a transmitter / receiver / CODEC unit 23 for inputting / outputting voice and performing analog / digital conversion, and a call and data communication. A switch 19 for switching between a telephone call and data communication for switching between and, and an encryptor 20 for encrypting data. Data input / output terminal 1
5, the connection between the data input / output terminal 21 and the power supply terminal 17
In connection with the power receiving terminal 22, the terminals are in direct contact with each other.

FIG. 2 shows an external view of the structure shown in FIG.
The wireless call communication system includes a data terminal device 10, a data module device 12, and a digital wireless call communication device 18, and the connection between the data terminal device 10 and the data module device 12 is a curl cord 28 integrated with the data module device 12. By. Data module device 1
2 has a shape similar to that of a battery and is integrally viewed, and as a method of attaching the data module device 12 and the digital type wireless call communication device 18, the compatibility between the battery and the data module device 12 is maintained. Data terminal device 10, data module device 12, data module device 12
The digital call communication device 18 and the digital wireless communication device 18 have detachable structures.

A case where data is transmitted from the data terminal device 10 to another data terminal device will be described. The switch 19 for call and data communication is set on the data communication side. The data terminal device 10 transmits digital data to be transmitted, for example, document data, to the data module device 12 via the digital data communication interface 11. The data module device 12 is a data terminal device 10.
From the digital data communication interface 13 via the digital data communication interface 13, the speed converter 14 absorbs the difference between the data transmission speed on the digital data communication interface 13 and the data transmission speed in the wireless section, The data is sent to the digital wireless call communication device 18 via the data input / output terminal 15. The digital wireless call communication device 18 inputs the data input from the data input / output terminal 21 to the encryption device 20 via the call / data communication switching device 19, and the encryption device 20 encrypts the data. The improved digital data is transmitted to the wireless unit and wirelessly transmitted to another data terminal. Next, a case where the data terminal device 10 receives data from another data terminal will be described. The received digital data is input to the encryption device 20 via the wireless unit. The cipher device 20 decrypts the cipher, and the data is sent to the data module device 12 through the caller / data communication switcher 19 and the data input / output terminal 21. Data module device 1
2 inputs data via the data input / output terminal 15, and the speed converter 14 absorbs the difference between the data transmission speed in the wireless section and the transmission speed on the digital data communication interface 13, and the digital data communication interface 13
To the data terminal device 10 via. The data terminal device 10 takes in digital data internally through the digital data communication interface 11.

A case of making a call using the digital type wireless call communication device 18 will be described. The switch 19 for calling and data communication is set on the calling side. Explaining the transmitter side, the audio signal input from the transmitter is CODEC.
It is digitized by and is sent to the wireless unit via the caller / data communication switcher 19 and the encryptor 20. Explaining the receiving side, the audio signal input from the wireless unit is
Encryption device 20, switching device 19 for call and data communication, C
It is output through the handset via ODEC.

A power supply method will be described. The data terminal device 10 is usually connected to a power source, but it may be supplied from an internal battery. The data terminal device 10 includes a digital data communication interface 11
Power is supplied to the data module device 12 via the.
The data module device 12 supplies the power supplied via the digital data communication interface 13 to the power supply unit 1.
6, the power supply unit 16 supplies electric power to each block in the data module device 12 and also supplies electric power to the digital radio communication device 18 through the power supply terminal 17. Digital wireless communication device 18
Inputs the power supplied through the power receiving terminal 22 to the power supply unit 24, and the power supply unit 24 supplies power to each unit of the digital wireless call communication device 18.

FIG. 3 shows a configuration when the radio communication system is used exclusively for communication. A battery 30 is connected to the digital wireless call communication device 18, and the battery 30 supplies power to the digital wireless call communication device 18 via a power supply terminal 31. Further, the switch 19 between the call and the data communication is automatically switched to the call side by connecting the battery 30.

FIG. 4 shows an external view of the structure shown in FIG. Reference numeral 18 is a digital radio communication device,
Reference numeral 0 indicates a battery, and 19 indicates a switch for call and data communication.

The present invention is not limited to the above embodiments, and various modifications can be made based on the gist of the present invention, and these modifications are not excluded from the scope of the present invention.

[0018]

As is apparent from the above embodiments, according to the present invention, the digital data signal is transmitted as a digital signal without being converted into an analog signal, so that the signal is resistant to noise, and the encryption device enables Confidentiality can be secured, and the data terminal device supplies power to the data module device and the wireless call communication device, so that the call communication time is not limited,
Space saving can be realized by integrating the digital type wireless call communication device and the data module device, and even in the form in which the wireless call communication device, the data terminal device and the data module device are connected, It is possible to realize an excellent wireless call communication system that can be used for a call or data communication by the switch between the call in the call communication device and the data communication and can be used only for the call when the battery is connected to the digital type wireless call communication device. is there.

[Brief description of drawings]

FIG. 1 is a configuration diagram during a telephone call or data communication according to an embodiment of the present invention.

FIG. 2 is an external view of one embodiment of the present invention during a call or data communication.

FIG. 3 is a configuration diagram during a call according to an embodiment of the present invention.

FIG. 4 is an external view of one embodiment of the present invention during a call.

FIG. 5 is a configuration diagram for performing data communication with a conventional analog wireless communication device.

[Explanation of symbols]

 10 data terminal device 11 interface for digital data communication 12 data module device 13 interface for digital data communication 14 speed converter 15 data input / output terminal 16 power supply section 17 power supply terminal 18 digital wireless call communication apparatus 19 call and data communication Switching device 20 Encryption device 21 Data input / output terminal 22 Electric power receiving terminal 23 Transmitter / receiver / CODEC unit 24 Power supply unit 28 Curl code 30 Battery 31 Power supply terminal 50 Data terminal device 51 Digital data communication interface 52 Modulation / demodulation device 53 digital data communication interface 54 analog wireless communication device 55 call and data communication switch 56 battery

Claims (1)

[Claims] 1. A data terminal device for inputting / outputting digital data and supplying power through a built-in digital data communication interface, and a digital device for receiving input / output and supplying power of digital data from the data terminal device. A data module device having a data communication interface, a speed converter for converting the transmission speed of digital data, a power supply unit that receives power from the data terminal device and supplies power to each unit, a data input / output terminal, and a power supply terminal. And a data input / output terminal and a power receiving terminal for receiving digital data and power from the data module apparatus, and a power source for receiving power from the data module apparatus via the power receiving terminal and supplying power to each unit Part, voice transmitter / receiver for voice input / output and analog / digital conversion A CODEC unit, a switch for switching between call and data communication, and a digital wireless call communication device having an encryption device for encrypting data are provided, and a digital wireless call communication device and a data module device are provided. A wireless communication system having an integrated structure.