JPH0819024A - Data reception system - Google Patents

Abstract

PURPOSE:To provide the data reception system whose communication performance is not deterioration by an interface or an external equipment to be connected. CONSTITUTION:This data reception system 10 is made up of a communication terminal equipment 11 including a reception section 11b receiving a radio wave of data communication and outputting a reception signal, and a data processing section 11c processing the reception signal from the reception section to output a data signal, an output section giving a data signal from the data processing section of the communication terminal equipment to the external equipment via an interface 12. An output section 11d is an optical output section converting a data signal into an optical signal and outputting, and the interface 12 is made up of an optical input section 12a receiving an optical signal emitted from the optical output section and a signal processing section 12b decoding the data signal based on the signal from the optical input section.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data receiving system for outputting a data signal received by a communication terminal device such as a pager or a mobile phone to an external device.

[0002]

2. Description of the Related Art Conventionally, a data receiving system for outputting a data signal received by a communication terminal device to an external device is constructed, for example, as shown in FIG. That is, in FIG. 3, the data receiving system 1 includes a pager 2 as a communication terminal device and an interface 3 for the pager 2.
And a personal computer 4 connected via.

In this case, the pager 2 has a receiving antenna (not shown) built therein, and a receiving section for outputting a received signal based on the radio wave of the data communication received by the receiving antenna, and the receiving section. And a data processing unit for processing the received signal from and outputting a data signal. The data signal thus obtained is displayed on the display unit of the pager and is output to the interface 3 via the cable 5 connected to the output terminal 2a. Then, in the interface 3, the data signal is appropriately converted and then input to the personal computer 4 so that desired data processing can be performed.

[0004]

However, in such a data receiving system 1, since the interface 3 is connector-connected to the pager 2 via the cable 5, the receiving antenna built in the pager 2 is The reception performance changes, or device noise from the interface 3 or the personal computer 4 enters the pager 2 via the cable 5, so that the communication performance of the pager 2 deteriorates. Therefore, there is a problem that the data reception becomes unstable and accurate data reception cannot be performed.

In view of the above points, it is an object of the present invention to provide a data receiving system in which the communication performance is not deteriorated by the connected interface or external equipment.

[0006]

According to the present invention, the above-mentioned object is to receive a radio wave for data communication and output a reception signal, and to process a reception signal from the reception section to output a data signal. In the data receiving system, the output unit connects the data signal from the data processing unit of the communication terminal device to an external device via an interface. An optical output unit for converting a signal to an optical signal and outputting the optical signal, wherein the interface receives an optical signal emitted from the optical output unit, and data based on the signal from the optical input unit. And a signal processing unit for restoring a signal.

In the data receiving system according to the present invention, preferably, the communication terminal device is a pager, a mobile phone, a transceiver or a radio receiver.

[0008]

According to the above structure, a data signal received by a communication terminal device such as a pager, a mobile phone, a transceiver or a radio receiver is converted into an optical signal, and then an external signal such as a personal computer is transmitted via an optical interface. Output to the device. Therefore, since the connection between the communication terminal device and the external device is performed in a non-contact manner, the reception performance of the built-in antenna of the communication terminal device is changed, or the noise of the interface or the external device is transmitted to the communication terminal device. Since no intrusion occurs and the communication performance of the communication terminal device does not deteriorate, stable data reception can be performed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail based on an embodiment shown in the drawings. FIG. 1 shows an embodiment of a data receiving system according to the present invention. That is, FIG.
In the data receiving system 10, the communication terminal device 1
1 and an optical interface 12 optically connected to the communication terminal device 11.

In the illustrated case, the communication terminal device 11 has a built-in receiving antenna 11a and the receiving antenna 11a.
A high-frequency receiving unit 11b that outputs a received signal based on the radio wave of the data communication received by the data processing unit 1 and a data processing unit 1 that processes the received signal from the receiving unit 11b and outputs the data signal.
1c and a light output section 11d having a light emitting element such as an LED connected to the data processing section 11c.

On the other hand, the optical interface 12
Is an optical input unit 12a including a light receiving element such as a photodiode for receiving an optical signal from the optical output unit 11d of the communication terminal device 11, and a signal processing for restoring the received light signal from the optical input unit 12a to a data signal. And a portion 12b. Further, the output terminal 12c of the optical interface 12 is connected to an external device such as a personal computer. As a result, the data signal restored by the signal processing unit 12b can be output to the external device.

A data receiving system 1 according to an embodiment of the present invention
0 is configured as described above, and based on the radio wave received by the receiving antenna 11a of the communication terminal device 11,
The reception signal is output by the reception unit 11b. This received signal is converted into a data signal by the data processing unit 11c, and an optical signal is emitted from the optical output unit 11d based on this data signal.

The optical signal is received by the optical input unit 12a of the optical interface 12, and the signal processing unit 1
2b restores the data signal. This data signal is output from the output terminal 12c of the optical interface 12 to an external device, for example, a personal computer, so that the external device can perform appropriate processing. In this case, the communication terminal device 11 and the external device are connected in a contactless manner via the optical interface 12, so that this connection may change the reception performance of the built-in antenna of the communication terminal device. Since the noise of the interface or the external device does not enter the communication terminal device and the communication performance of the communication terminal device does not deteriorate, stable data reception can be performed.

FIG. 2 shows a specific embodiment of the data receiving system according to the present invention. That is, in FIG.
The data receiving system 20 includes a pager 21 as a communication terminal device, an optical interface 22 optically connected to the pager 21, and the optical interface 2
2 and a personal computer 24 connected via a cable 23.

The pager 21 includes a built-in receiving antenna, a receiving section for outputting a received signal based on the radio wave of the data communication received by the receiving antenna, and a data processed by processing the received signal from the receiving section. A light output unit 2 including a data processing unit that outputs a signal, a display unit 21a to which the data signal from the data processing unit is input, and a light emitting element such as an LED.
1b and.

On the other hand, the optical interface 22
Is composed of an optical input unit including a light receiving element such as a photodiode for receiving an optical signal from the optical output unit 21b of the pager 21, and a signal processing unit for restoring the received light signal from the optical input unit into a data signal. Has been done. Furthermore, the output terminal 22a of the optical interface 22 is connected to the cable 2
3 is connected to the personal computer 24. Here, the connection to the personal computer 24 is
For example, it may be done for the RS232C terminal. As a result, the data signal restored by the signal processing unit of the optical interface 22 can be output to the personal computer 24.

In the above embodiment, the optical output unit 11d of the communication terminal device 11 and the optical input unit 12a of the optical interface 12 are bidirectionally optical signals with the optical input unit 11d and the optical output unit 12a, respectively. Is configured to receive and emit light, and optical signals can be exchanged while confirming the processing state of the signal processing unit 12b.

The data receiving system 20 having such a configuration
According to the above, based on the radio wave received by the receiving antenna of the pager 21, the display unit 21a of the pager 21
The transmitted data signal is displayed by characters and the like, and an optical signal is emitted from the optical output unit 21b of the pager 21.

Then, this optical signal is received by the optical input section of the optical interface 22, and is restored to a data signal by the signal processing section. This data signal is output from the output terminal 22a of the optical interface 22 to the RS232C terminal of the personal computer 24 via the cable 23. As a result, the personal computer 24 performs appropriate processing based on the input data signal.

In this case, the pager 21 and the personal computer 24 are connected to each other in a non-contact manner via the optical interface 22, so that the connection changes the receiving performance of the built-in antenna of the pager 21. In addition, noise from the optical interface 22 and the personal computer 24 does not enter the pager 21. Therefore, the communication performance of the pager 21 does not deteriorate, and stable data reception can be performed.

In the above embodiment, the connection between the communication terminal devices 11 and 21 and the optical interfaces 12 and 22 is such that the optical signals emitted from the optical output units 11d and 21b of the communication terminal device 11 are the optical interfaces 12. , 22
However, the present invention is not limited to this, and the optical output unit 11 of the communication terminal device 11 is used.
It is also possible to configure the optical input parts of the d and 21b and the optical interfaces 12 and 22 as optical connectors, respectively, and connect the optical connector of the optical output part and the optical connector of the optical input part by an optical fiber. it is obvious. In this case, the influence of extraneous light can be eliminated, and more accurate data reception can be performed.

[0022]

As described above, according to the present invention, a data signal received by a communication terminal device is converted into an optical signal and then output to an external device such as a personal computer through an optical interface. It Therefore, since the connection between the communication terminal device and the external device is performed in a non-contact manner, the reception performance of the built-in antenna of the communication terminal device is changed, or the noise of the interface or the external device is transmitted to the communication terminal device. Since no intrusion occurs and the communication performance of the communication terminal device does not deteriorate, stable data reception can be performed.

Thus, according to the present invention, it is possible to provide an extremely excellent data receiving system in which the communication performance is not deteriorated by the connected interface or the external device.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a data receiving system according to the present invention.

FIG. 2 is a schematic perspective view showing a specific embodiment of the data receiving system according to the present invention.

FIG. 3 is a block diagram showing an example of a conventional data receiving system.

[Explanation of symbols]

 10, 20 Data reception system 11 Communication terminal device 11a Reception antenna 11b Reception section 11c Data processing section 11d, 21b Optical output section 12, 22 Optical interface 12a Optical input section 12b Signal processing section 12c, 22a Output terminal 21 Pager 21a Display section 23 Cable 24 personal computer

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Claims (5)

[Claims] 1. A communication terminal device, comprising: a receiving unit for receiving a radio wave for data communication and outputting a received signal; and a data processing unit for processing a received signal from the receiving unit and outputting a data signal, and the communication. In a data receiving system comprising an output unit for connecting a data signal from a data processing unit of a terminal device to an external device via an interface, the output unit is an optical output unit for converting the data signal into an optical signal and outputting the optical signal. And the interface includes an optical input unit that receives an optical signal emitted from the optical output unit,
A data receiving system comprising: a signal processing unit that restores a data signal based on a signal from the optical input unit. 2. The data receiving system according to claim 1, wherein the communication terminal device is a pager. 3. The data receiving system according to claim 1, wherein the communication terminal device is a mobile phone. 4. The data receiving system according to claim 1, wherein the communication terminal device is a transceiver. 5. The data receiving system according to claim 1, wherein the communication terminal device is a wireless receiver.