JPH05344056A - Portable radio telephone set - Google Patents

Abstract

PURPOSE:To realize a portable radio telephone set in which a visit to outside is prevented while a battery residual capacity is less. CONSTITUTION:A portable radio telephone set utilizing both a wireless telephone network and a cellular telephone service network is provided with a wireless zone detection section 15, a charger set detection section 17 and a clock section 13, and when the telephone set is resident in a wireless zone and the telephone set is not to a charger, the clock section is acted and a charging request waning is made after lapse of a set time, then a visit to outside with less battery residual capacity is prevented and the available usable time at a visited location is extended.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable radio telephone device having both functions of a cordless telephone and a cellular telephone.

[0002]

2. Description of the Related Art In recent years, due to the development of wireless technology, high-density mounting technology, and energy saving of various devices, wireless telephones have become smaller,
It has been widely used in the form of car phones and mobile phones due to lower prices.

FIG. 2 is a diagram showing the structure of a conventional portable radio telephone having both a cordless telephone function and a cellular telephone function. In FIG. 2, 1 is a control unit for controlling the entire apparatus,
Reference numeral 2 is a cordless transmitter / receiver unit controlled by the control unit to transmit / receive a radio signal to / from a cordless telephone master unit, 3 is a cellular transmitter / receiver unit to transmit / receive a radio signal to / from a cellular telephone line, and 4 is a voice signal or An audio signal processing unit for processing communication data, 5 a display unit for displaying a communication state or key input, 6 a key input unit for inputting a telephone number and the like, 7 a battery for supplying electric power to the entire apparatus , 8 is a microphone for inputting voice, 9 is a speaker for outputting voice or DTMF (Dual Tone Malti Frequency) signal, 10 is an antenna for transmitting and receiving wireless power, 11 is a remaining battery level Then, when the operation limit is reached, the remaining battery level detector 12 outputs the remaining amount detection signal 12 to the controller 1.

In the conventional portable radio telephone device configured as described above, when the cordless telephone base unit is near and the communication with the base unit is possible, the key input unit 6 is switched to the cordless telephone. By doing so, the control unit 1 can control the cordless transmission / reception unit 2 and the voice signal processing unit 4 to function as a cordless telephone, and the user inputs the telephone number from the key input unit 6 while checking the display unit 5. After connecting the line, you can talk through the microphone 8 and the speaker 9.
If you get out of the area of a cordless telephone, the key input section 6
By switching from to the cellular telephone, the control unit 1 can control the cellular transmitting / receiving unit 3 and the voice processing unit 4 to function as a cellular telephone.

When the remaining amount of the battery 7 decreases during use of the device and approaches a level at which the device cannot be used, the battery remaining amount detector 11 outputs a remaining amount detection signal 12 to the controller 1. When the remaining amount detection signal 12 is input, the control unit 1 displays a message such as "BATTERY LOW" on the display unit 5 to warn the user.

[0006]

However, in the above-mentioned conventional cellular / cordless hybrid type portable radio telephone device, when the user returns to his / her home (or office) like a dedicated cellular telephone device, it is set in the charger. Unlike the case
Even if the user returns to his / her home (or office), he / she may use it as a cordless telephone, so that it may not be placed in the charging device or the base unit having the charging function. Cellular phones are usually set in the charging device when you return to your home, so when you go out, you usually take them out in a charged state, and you can use the battery capacity to the maximum extent possible.
The cordless hybrid type mobile wireless telephone device has a problem that it can be used as a cordless telephone at home (or in the office) as well, and there is a high possibility that it will go out when the battery level is low, and the usage time at the destination will be shortened. Was there. SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a portable telephone-less device that can prevent going out of the cordless telephone area when the battery level is low.

[0007]

In order to achieve the above object, the present invention provides a cordless area detecting means for determining whether or not a cordless telephone is in a communicable area, and a charging device (main unit having a charging function. It is equipped with a charging device set detection means for detecting that it has been placed in a cordless area, and a timekeeping means, and when the timepiece means is in a cordless area and not set in the charger, the timekeeping means is activated and the set time has elapsed. When it does, a charging request warning is issued.

[0008]

According to the present invention, when the cordless area detecting means detects that the cordless area is in the cordless area and the charging device set detecting means does not detect that the charging device set detecting means is placed in the charging device or the master unit, When the preset time has elapsed after starting the timekeeping of the timekeeping means, the control unit issues a charging request warning to the user through the display unit or speaker etc. and charges the battery early so that the battery level is low. It is possible to prevent going out of the cordless telephone service area.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. In FIG. 1, reference numeral 1 is a control unit for controlling the entire apparatus, 2 is a cordless transmission / reception unit which is controlled by the control unit and transmits / receives a radio signal to / from a cordless telephone master unit, and 3 is wireless with a cellular telephone line. Cellular transmitter / receiver unit for transmitting / receiving signals, 4 is a voice signal processing unit for processing voice signals or communication data, 5 is a display unit for displaying a communication state or key input, and 6 is a key input for inputting a telephone number or the like. 7 is a battery for supplying electric power to the entire apparatus, 8 is a microphone for inputting voice, 9 is voice or DTMF (Dual Tone Malti Frequ)
ency) speaker for outputting signals, 10 is an antenna for transmitting and receiving wireless power, 11 is the remaining amount of the battery 7 when the remaining amount of the battery 7 is detected and the operating limit is reached It is a battery remaining amount detection unit that outputs a detection signal 12. Reference numeral 13 is a timekeeping section that is controlled by the control section 1 to measure an arbitrary time and outputs a timekeeping signal 14 to the control section 1 when a set time has elapsed, and 15 is a cordless communication based on the signal received by the cordless transceiver section 2. When it is determined that it is within the possible range and it is within the range where the cordless communication is possible, the cordless range detection unit that outputs the cordless range signal 16 to the control unit 1 is a mobile wireless telephone device as a charging device or a charging function. It is a charging device set detection unit that outputs a charging device set signal 18 to the control unit 1 when it is detected that the charging device set is placed on the parent device.

The operation of the portable radiotelephone device configured as described above will be described below. When it is near the cordless telephone base unit and within the range where communication with the base unit is possible, the control unit 1 switches to the cordless telephone by the key input unit 6 so that the control unit 1 receives the cordless transmission / reception unit 2 and the voice signal processing unit. 4 can function as a cordless telephone, and the user can enter a telephone number from the key input unit 6 while checking the display unit 5 and can talk through the microphone 8 and the speaker 9 after connecting the line. When the user goes out of the area of the cordless telephone, the key input unit 6 is switched to the cellular telephone so that the control unit 1 can control the cellular transmitting / receiving unit 3 and the voice processing unit 4 to function as a cellular telephone. . When in the cordless telephone area, the cordless area detection unit detects that the cordless area is in the cordless area based on the reception state of the cordless transmission / reception unit 2, and outputs the cordless area signal 16 to the control unit 1. At this time, if the portable wireless telephone device is not placed on the charging device or the master unit having the charging function, the charging device set detection unit 17 will set the charging device set signal 18
Therefore, the control unit 1 controls the time counting unit 13 to start time counting. When the set time has elapsed, the timekeeping unit 13 outputs the timekeeping signal 14 to the control unit 1 and repeats the timekeeping from the initial value. When the control unit 1 receives the timing signal 14, the display unit 5
A charge request display such as "CHARGE!" Is displayed on the screen and a warning sound is output from the speaker 9 via the audio signal processing unit 4. In response to this warning, the user returns the device to the charging device or the base unit and charges it. The charging device set detection unit outputs the charging device set signal 18 to the control unit 1, and the control unit 1 stops the clock unit 13 and returns it to the initial value. At this time, if the user does not notice the warning or decides that charging is not necessary and does not put the device in the charging device, the timekeeping unit 13 outputs the timekeeping signal 14 to the control unit 1 after the set time has passed again, and the same warning is given. Emit.

[0011]

As is apparent from the above embodiments, in the portable wireless telephone device which can utilize both the cordless telephone and the cellular telephone service network of the present invention, the cordless area detecting means, the set detecting means for the charging device, When equipped with a timekeeping means, in a cordless area, and not set in the charger, the timekeeping means is activated and a charging request warning is issued when the set time has elapsed, so that charging in a rechargeable state is possible. This has the effect of preventing the user from going out when the battery level is low and prolonging the usable time at the destination.

[Brief description of drawings]

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

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

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Control part, 2 ... Cordless transmission / reception part, 3 ... Cellular transmission / reception part, 4 ... Audio signal processing part, 5 ... Display part,
6 ... Key input part, 7 ... Battery, 8 ... Microphone,
9 ... Speaker, 10 ... Antenna, 11 ... Battery remaining amount detection part, 12 ... Remaining amount detection signal, 13 ... Timing part, 14 ...
Timekeeping signal, 15 ... Cordless area detection unit, 16 ... Cordless area signal, 17 ... Charging device set detection unit, 18 ... Charging device set signal.

Claims (1)

[Claims] 1. A first wireless communication function capable of wireless communication with a base unit of a cordless telephone connected to a public telephone communication network,
A wireless telephone device having a second wireless communication function capable of wireless communication with a base station in a cellular telephone service network, comprising cordless area detection means, charging device set detection means, and time measuring means If there is, and the wireless telephone device is not set in the charging device,
A portable radiotelephone device characterized in that the timekeeping means is made to function and a charging request is warned when a set time has elapsed.