JP3077249B2 - Wireless telephone equipment - Google Patents

Abstract

PURPOSE:To attain the selection and the use of a cordless telephone system having the call charge less expensive than a radio telephone service network in a radio telephone system that can perform the radio communication with use of the radio telephone service network and also can serve as a cordless telephone system. CONSTITUTION:When a user switches on an operating part 4 in order to secure the function of a cordless telephone set, the radio waves are outputted to a cordless master device from a control part 11 via a cordless radio part 8. Thus the master device transmits repetitively the radio waves including the specific codes used for decision of the radio state. A radio telephone system receives the radio waves through the part 8 and sends them to a code reproducing part 13. The part 13 reproduces the original codes from the received signals and sends them to an error rate detecting pert 14. As these codes are repetitively sent to the part 14, the part 14 can detect the bit error rate by the majority processing based on the contents of the codes detected in plural times. The detected error rate is processed at the part 11 and informed to the user through a display part 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio telephone device which can perform radio communication using a radio telephone service network and can be used as a cordless telephone.

[0002]

2. Description of the Related Art In recent years, wireless telephone devices have been widely used with their improved convenience and economy.
2. Description of the Related Art A wireless telephone that can be used in a wide area by performing wireless communication with a wireless telephone service network such as a cordless telephone or a cellular telephone for use within an office or at home, and a cellular telephone has become widespread.

[0003] An integrated wireless telephone which combines a cordless telephone and a cellular telephone is also conceivable.

[0004] Such a cordless / cellular integrated radiotelephone device will be described below as a conventional example.

FIG. 2 is a block diagram of a conventional example, and FIG. 3 is a perspective view showing its appearance. In FIG. 3, reference numeral 1 denotes a wired public telephone line, 2 denotes a base unit of a cordless telephone connected to the line, 3 denotes a wireless telephone having both functions of a cordless telephone and a cellular telephone capable of wireless communication with the base unit. It has a circuit, a wireless circuit, a power supply using a storage battery, and the like. 4
Is an operation unit, 5 is a reception unit, 6 is a transmission unit, and the wireless telephone 3
It is configured integrally.

In FIG. 2, reference numeral 7 denotes an antenna, 8 denotes a cordless radio section for performing radio communication for cordless telephones, 9 denotes a cellular radio section for performing radio communication with a radio telephone service network such as a cellular telephone, 10 denotes a display section, and 11 denotes a display section. Denotes a control unit for supplying and controlling power to the above-mentioned units, and 12 denotes a main body having blocks 4 to 11.

The operation of the radio telephone having the above-described configuration blocks will be described below.

When using the wireless telephone service network, the user of the wireless telephone device dials in the operation unit 4 to make a call. The outgoing call information is converted into a radio signal by the cellular radio section 9 via the control section 11, and a radio wave is output from the antenna 7. After the called party goes off-hook, a radio signal is transmitted and received by the cellular radio unit 9 via the antenna 7, and a call is started by the receiving unit 5 and the transmitting unit 6. When an incoming call is received, the incoming call information is wirelessly communicated by the cellular radio section 9 via the antenna 7, and the control section 11 and the operation section 4 perform call processing to start a call with the caller.

When a function as a cordless telephone is used, communication is performed in the same manner as described above using the cordless radio section 8 instead of the cellular radio section 9.

[0010]

[SUMMARY OF THE INVENTION However, since the wireless communication range of the code <br/> less phone is limited, can call the distance between the cordless base unit is greater than about 100 to 200 m Disappears. However, communication via the base station
There is an advantage that the call fee is cheaper than talking
So, as long as you can talk to the cordless base unit,
There is an advantage for the user to make a call with the machine. This
For this reason, in the past,
Some are notified when they become enclosed. However
While in this configuration, the cordless parent machine at the current position
Can't talk to you, but you can talk if you move a little further
User is simply out of the service area
The user communicates with the base station
I could only recognize that I had to do it.

[0011] The present invention is intended to solve the above problems, the current
Cannot talk to the cordless base unit at
If you are in a position where you can make a call after moving a little,
It is an object of the present invention to provide a wireless telephone device that allows a user to recognize the effect .

[0012]

In order to achieve the above object, the present invention provides a detecting means for detecting that wireless communication with a cordless base unit is within a usable range and close to a usable range. There is provided a means for displaying a result detected by the detecting means.

[0013]

According to the present invention, not only that the cordless telephone is in the radio wave range but also that the cordless telephone is close to the radio wave range can be detected and displayed.

[0014]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of this embodiment. Reference numeral 7 denotes an antenna, 8 denotes a cordless wireless unit that performs wireless communication for cordless telephones, 9 denotes a cellular wireless unit that performs wireless communication with a wireless telephone service network such as a cellular telephone, 10 denotes a display unit,
1 is a control unit for supplying and controlling power to each of the above units, 13 is a code reproducing unit for reproducing a data code from the cordless base unit, 14 is an error rate detecting unit for detecting the state of wireless communication of a cordless telephone, and 15 is the above. It is an apparatus main body provided with each block.

The operation of the wireless telephone device having the above-described configuration blocks will be described below.

When the user turns on the operation unit 4 to use the function as a cordless telephone, the control unit 11 outputs a radio wave to the cordless base unit via the cordless radio unit 8. In response to this, the cordless master unit repeatedly transmits a radio wave carrying a specific code for determining a radio state. The radio telephone device receives this radio wave by the cordless radio unit 8 and sends it to the code reproducing unit 13. The code reproducing section 13 reproduces the original code from this signal and sends it to the error rate detecting section 14. Since this code is repeatedly transmitted, the error rate detection unit 14 can detect the bit error rate by using majority processing based on the content of detecting the code a plurality of times. The detected error rate is determined by the control unit 1
1 and displayed on the display unit 10 to notify the user. The error rate detection unit 14 is capable of wireless communication with the cordless base unit and is not in the range of use.
The display unit 10 detects that it is located at a position near the use range, that is , a position near the use range, and causes the display unit 10 to display it.

As described above, according to the radio telephone apparatus of the embodiment of the present invention , the use range is determined by the error rate detection of the error rate detector.
It is not the position close to the use range, that is, the position close to the use range
Detects that you are in, because that can be displayed, if a little movement to the user, so that it is possible to inform that it can enter the cordless telephone available position. In addition, to display on the display even when it becomes possible to talk to the cordless parent unit, after a message saying "close to the use range" is displayed, when the user moves, "Entered" can be identified.

[0019]

As is apparent from the above embodiment, according to the present invention, a detecting means for detecting that the wireless communication with the cordless base unit is within the usable range and close to the usable range is provided. By displaying the result detected by the detection means, it is possible to inform the user that the user is within the cordless phone usable range and that the user is close to the usable range. , And by entering the usable range, it is possible to provide a wireless telephone device capable of selectively using a cordless telephone having a lower call charge than the wireless telephone service network.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a circuit configuration of a wireless telephone device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a circuit configuration of a conventional wireless telephone device.

FIG. 3 is an external perspective view showing the configuration of a conventional wireless telephone device.

[Explanation of symbols]

 8 Cordless radio section 10 Display section 11 Control section 13 Code reproduction section 14 Error rate detection section

Continuation of the front page (56) References JP-A-3-1621 (JP, A) JP-A-58-151136 (JP, A) JP-A-63-31328 (JP, A) JP-A-1-321739 (JP, A) JP-A-3-108848 (JP, A) JP-A-62-198244 (JP, A) JP-A-3-96134 (JP, A) JP-A-4-217128 (JP, A) (58) Field surveyed (Int.Cl. ⁷ , DB name) H04M 1/72-1/737 H04M 1/00 H04Q 7/38

Claims (3)

(57) [Claims] 1. A function capable of performing a first wireless communication with a base unit of a cordless telephone connected to a wired public telephone line and capable of performing a second wireless communication with a base station in a wireless telephone service network. And a detecting means for detecting that the first wireless communication is within the available range and close to the usable range .
That wireless telephone device. 2. The wireless telephone device according to claim 1, further comprising display means for displaying a result detected by said detection means. 3. A slave unit and a master unit connected to a wired telephone line.
The master unit receives a radio wave from the slave unit and receives a specific code.
Means for transmitting radiated radio waves, wherein the slave unit is a cordless telephone connected to a wired public telephone line.
A base station in a wireless telephone service network having a function capable of performing a first wireless communication with a base station of the talk;
Has a function of transmitting radio waves, and further receives radio waves with a specific code from the base unit.
And the error rate of the specific code is determined, and based on the error rate,
First wireless communication is within range and available
It is characterized by having a detecting means for detecting that it is close to the range.
Wireless telephone device.