JPS6260324A - wireless device - Google Patents

Abstract

PURPOSE:To decrease the output power of a portable radiotelephony set and to reduce the capacity of battery while increasing the output power at transmission by providing a radiotelephony set discriminating and amplifying a radio signal only of its own portable telephone set to an automobile used by the user itself. CONSTITUTION:A signal being the result of synthesis between the information from a number information memory section 3 and a signal from a radiotelephony section 2 by the 1st radio equipment 1 is sent through an antenna 4 and fed to the 1st antenna 5 of the 2nd radio equipment 12. The signal received by the antenna 5 and passing through a common section 6 is sent to a decoding and control section 8 through a reception section 7 to discriminate whether or not the radio signal of the own portable telephone set is supplied. When it is discriminated as the own signal, a frequency conversion section 9 and a power amplifier section 10 are controlled to apply power amplification and a signal is sent to a base through the 2nd antenna 11. Further, the signal from the base is sent to the antenna 4 of the portable telephone set directly. Thus, the operating time and talking enable area of the portable telephone set are improved to the same degree as that of a conventional on-vehicle equipment.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a mobile communication radio device.

BACKGROUND OF THE INVENTION In recent years, the number of telephones using mobile communication devices has been increasing, but telephones that can be used while being carried around have been used in very small quantities compared to in-vehicle wireless telephones.

Problems to be Solved by the Invention Conventional portable radio telephones had a transmission output of about 0.7W or /,jW and weighed about C9, but the talk time was 30 minutes. There are only about
In addition, the usable area was less than half that of car-mounted and telephone devices. In order to extend the call time, it is possible to increase the battery capacity, but this increases the weight and makes it inconvenient to carry.

Furthermore, if the callable area is to be increased, it is necessary to increase the transmission output power, but in the above case, there is a drawback that the call time is shortened.

The present invention has been made in view of the above-mentioned conventional circumstances.
Accordingly, an object of the present invention is to provide a novel wireless device that can overcome the above-mentioned drawbacks inherent in the conventional technology by devising a method of use.

Means for Solving the Problems In order to achieve the above objectives, the wireless device according to the present invention includes:
The vehicle used by the user is equipped with a second wireless device that distinguishes and amplifies only the wireless signal of the user's mobile phone, thereby increasing the output power during transmission and reducing the output power of the mobile wireless phone. Moreover, the battery capacity can also be reduced.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. In FIG. 1, reference number l indicates a first wireless device, and the first wireless device includes a wireless telephone section and a number information memory section. Reference number / indicates a second wireless device,
The second wireless device/2 is connected to the first antenna in the shared part 6.
, a receiving section 7, a decoding and control section t1, a frequency conversion section D, a power amplification section 10, and a first antenna.

At the first radio device f/, a signal obtained by combining the information in the number information memory section 3) with the signal from the radio telephone section is transmitted through the antenna terminal, and is transmitted to the first antenna of the second radio device f/. sent to j. The signal received by the antenna 5 and passed through the common area 1 is sent through the reception unit 7 to the decoding and control unit tVc, where it is determined whether or not it is a wireless signal from your own mobile phone. If it is determined that the signal is a signal, the frequency conversion section D and power amplification section IO are controlled to perform power amplification, and the signal is sent to the base through the second antenna.

In addition, signals from the base are sent directly to the mobile phone antenna.

As described in detail, by using the present invention, it is possible to improve the usage time and callable area of a mobile phone to the same level as a normal vehicle-mounted device.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

Claims (1)

[Claims] a first wireless device capable of simultaneous transmission and reception; a first antenna;
A radio device comprising a second radio device including a second antenna, a common section, a frequency conversion section, a power amplification section, a control section, and a reception section, the radio device transmitting predetermined number information to the first radio device. The second wireless device has a number information transmitting section for transmitting the number information, and the second wireless device has a number information detecting section for detecting the number information, and the received signal is decoded and detected, and the signal is the number information of the first wireless device. A wireless device characterized in that it has a function of converting and amplifying the frequency of a received signal from the first wireless device only when the first wireless device matches the first wireless device.