JPH06311101A - Portable radio telephone system - Google Patents

Abstract

PURPOSE:To provide a portable radio telephone system which can reduce power consumption at the time of waiting when it is beyond a cordless range without delaying a response to a master unit when it is within the cordless range and which has a cordless telephone function and a cellular telephone function. CONSTITUTION:A cordless range identification means 14 and clock means 12 and 13 which can switch a first period having a power-on period and a power- off period and a second period whose power-off period is longer than that of the first period in accordance with the output of the identification means 14 are provided. When the system is within the cordless range at the time of waiting, the power of a cordless radio signal reception means 2 is controlled by the first period. When it is beyond the cordless range, it is controlled by the second period.

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 phones have become smaller and less expensive, and are widely used in the form of car phones and mobile phones. Has become. Also, use it as a cordless phone with low call charges at home or office,
A portable wireless telephone device having both a cordless telephone function and a cellular telephone function has been developed so that it can be used as a cellular telephone when going out.

The conventional portable telephone device will be described below with reference to the drawings. FIG. 3 is a diagram showing the configuration of a conventional portable wireless telephone device having both a cordless telephone function and a cellular telephone function. In the figure, 1 is an antenna for transmitting and receiving wireless power, and 2 is a cordless telephone master unit. Cordless transmitter / receiver for transmitting and receiving wireless signals between
Is a cellular transceiver for transmitting and receiving radio signals to and from a cellular telephone base station, 4 is a voice signal processing unit for processing voice signals or communication data, 5 is a microphone for inputting voice, 6 is voice or DTMF (Dual Ton
A speaker for outputting an e-Malti Frequency) signal, 7 is a display unit for displaying the communication status or key input, 8 is a key input unit for inputting a telephone number, 9 is a control unit for controlling the entire apparatus, Reference numeral 10 is a power supply unit for supplying electric power to the entire apparatus, 11 is a cordless power supply control unit for controlling the power supply of the cordless transmission / reception unit, 1
Reference numeral 2 is a time counting unit that gives the cordless power supply control unit 11 a cycle of intermittent power supply.

The relationship and operation of each constituent element of the conventional portable radio telephone apparatus composed of the above constituent elements will be described. When the portable wireless telephone device is near the cordless telephone base unit and within the range where communication with the base unit is possible, the control unit 9 switches to the cordless telephone by switching from the key input unit 8 to the cordless telephone when making a call. The transmitter / receiver 2 and the voice signal processor 4 can be controlled to function as a cordless telephone via the base unit, and the user can confirm the display 7 and enter the key input 8
Enter the telephone number from and connect to the line to talk through the microphone 5 and speaker 6. When receiving a call, the wireless signal from the base unit is received by the antenna 1 and demodulated by the cordless transmitter / receiver 2,
When the voice signal processing unit 4 analyzes the received signal and determines that the call is received, the control unit 9 connects the microphone 5 and the speaker 6 to enable the call.

When the portable radio telephone device goes out of the range of the cordless telephone, the control unit 9 switches the cellular transmission / reception unit 3 and the voice processing unit 4 by switching from the key input unit 8 to the cellular telephone at the time of calling. It can be controlled to function as a cellular phone. When receiving a call, the radio signal from the cellular base station is received by the antenna 1, and the cellular transmitting / receiving unit 3
When the voice signal processing unit 4 analyzes the received signal and determines that there is an incoming call, the control unit 9 connects the microphone 5 and the speaker 6 to enable the call.

During standby, the control unit 9 operates the clock unit 12. The timer 12 gives the cordless power controller 11 a cycle of intermittent power supply during standby. The cordless transmitter / receiver unit 2 is supplied with power at a cycle as shown in FIG. 2A to perform a receiving operation, and after confirming whether there is a call from the master unit, the power is turned off again. As a result, it is possible to reduce power consumption as compared with the case of always operating.

[0007]

However, in the above-mentioned conventional cellular / cordless composite type portable radio telephone device, the power supply to the cordless transmitter / receiver 2 during stand-by is intermittently performed to achieve low power consumption. Yes, but
When you are in the cordless area, you need to recognize the incoming call from the public line to the cordless base unit as soon as possible, so you need to shorten the intermittent cycle as much as possible, and increase the effect of low power consumption by extending the cycle. I can't. In particular, a combined cellular / cordless type mobile wireless telephone device often goes out of the cordless area because it is also used as a cellular phone, but when it is out of the cordless area, a cordless incoming call cannot be received. However, there is a problem in that it is necessary to always operate in this cycle in case of returning to the cordless area, and power is wasted.

The present invention solves the above-mentioned problems, without delaying the response to the master unit when in the cordless area,
An object of the present invention is to provide a portable wireless telephone device having a cordless telephone function and a cellular telephone function, which can reduce power consumption during standby when it is outside the cordless area.

[0009]

In order to achieve the above object, the present invention provides a power supply control means for cordless radio signal receiving means, a cordless area identification means, and a power-on period according to the output of the cordless area identification means. First with power off period
And a second timing cycle having a longer power-off period than the first cycle.

[0010]

According to the present invention, in the above structure, the power source of the cordless radio signal receiving means is controlled in the first cycle when in the cordless area during standby, but when the cordless area is out of the cordless area, the cordless area identifying means operates. When this is detected, the cycle of the clock means is switched to the second cycle. Since the power-off time in the second cycle is longer than that in the first cycle, lower power consumption can be achieved. When returning to the cordless area again, the cordless area identification means detects this and switches the cycle of the clock means to the first cycle. Therefore, when outside the cordless area, the power consumption is reduced in the second cycle, and when the area is in the cordless area, the receiving operation is frequently performed in the first cycle, so that an incoming call can be quickly answered.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a diagram showing a configuration of an embodiment of a portable wireless telephone having both a cordless telephone function and a cellular telephone function of the present invention, in which 1 is an antenna for transmitting and receiving wireless power and 2 is a cordless telephone. Cordless transmitter / receiver for transmitting / receiving wireless signals to / from the master unit, 3
Is a cellular transceiver for transmitting and receiving radio signals to and from a cellular telephone base station, 4 is a voice signal processing unit for processing voice signals or communication data, 5 is a microphone for inputting voice, 6 is voice or DTMF (Dual Ton
A speaker for outputting an e-Malti Frequency) signal, 7 is a display unit for displaying the communication status or key input, 8 is a key input unit for inputting a telephone number, 9 is a control unit for controlling the entire apparatus, Reference numeral 10 is a power supply unit for supplying electric power to the entire apparatus, 11 is a cordless power supply control unit for controlling the power supply of the cordless transmission / reception unit, 1
Reference numeral 2 is a first clock unit having a first cycle having a power-on period and power-off period, 13 is a second clock unit having a second cycle in which the power-off period is longer than the first cycle, and 14 is a cordless unit. A cordless identification unit that identifies whether or not cordless communication is possible based on the signal received by the transmission / reception unit 2, and 15 is a cordless power supply control unit 1 based on the identification result of the cordless identification unit.
It is a switching unit that switches whether to connect the output of the first clock unit 12 or the output of the second clock unit 13 as the control signal to 1.

With respect to the portable radiotelephone device composed of the respective constituent elements, the relationship and operation of the respective constituent elements will be described. When the portable wireless telephone device is near the cordless telephone base unit and within the range where communication with the base unit is possible, the control unit 9 switches to the cordless telephone by switching from the key input unit 8 to the cordless telephone when making a call. The transmitter / receiver 2 and the voice signal processor 4 can be controlled to function as a cordless telephone via the master unit, and the user inputs a telephone number from the key input unit 8 while checking the display unit 7 to connect to the line. Rear microphone 5 and speaker 6
Can be called through. When an incoming call is received, the wireless signal from the base unit is received by the antenna 1, demodulated by the cordless transmission / reception unit 2, the received signal is analyzed by the voice signal processing unit 4, and if the incoming call is determined, the control unit 9 causes the microphone 5 and the speaker. 6 is connected and a call is possible.

When the portable radio telephone device goes out of the range of the cordless telephone, the control unit 9 switches the cellular transmission / reception unit 3 and the voice processing unit 4 by switching from the key input unit 8 to the cellular telephone at the time of calling. It can be controlled to function as a cellular phone. When receiving a call, the radio signal from the cellular base station is received by the antenna 1, and the cellular transmitting / receiving unit 3
When the voice signal processing unit 4 analyzes the received signal and determines that there is an incoming call, the control unit 9 connects the microphone 5 and the speaker 6 to enable the call.

During standby, the control unit 9 operates the first clock unit 12 and the second clock unit 13. When in the range where cordless communication is possible, the cordless area identification unit 14 detects that it is in the cordless area based on the signal received by the cordless transmission / reception unit 2, and outputs the output of the first clock unit 12 to the switching unit 15. A signal is sent to the cordless power supply control unit 11 so as to input the signal. The cordless power supply unit 11 controls the power supply of the cordless transmission / reception unit 2 with a control signal input via the switching unit 15. As shown in FIG. 2A, the first timing means turns on the power supply for a period during which it can be determined whether or not there is a call from the master unit, and then turns off the power supply. The power off period must be such that the response to the call from the base unit is not delayed.

When the cordless communication is impossible,
The cordless area identification unit 14 detects that it is not in the cordless area based on the signal received by the cordless transmission / reception unit 2, and causes the switching unit 15 to input the output of the second clock unit 13 to the cordless power supply control unit 11. To send a signal. The cordless power supply unit 11 controls the power supply of the cordless transmission / reception unit 2 with a control signal input via the switching unit 15. As shown in FIG. 2 (b), the first timing means turns on the power for a period during which it can be determined whether or not there is a call from the master unit, and then turns on the power for a longer period than the first timing unit 12. Turn off. The power-off period can be lengthened as long as it is allowed to return from the outside of the cordless area to the area within the cordless area and become ready to answer the call from the base unit.

[0016]

As is clear from the description of the above embodiment,
The present invention relates to a portable wireless telephone device having a cordless telephone function and a cellular telephone function, a power source control means of a cordless wireless signal receiving means, a cordless area identifying means, and a power on period and a power off period according to the output of the identifying means. And a clocking means capable of switching between a first cycle and a second cycle having a longer power-off period than the first cycle, and when the cordless radio signal receiving means is in the cordless area during standby, By controlling in the cycle of 1 and controlling in the second cycle when it is outside the cordless area, without delaying the response to the master unit when in the cordless area,
It is possible to achieve low power consumption during standby when the mobile phone is outside the cordless area. Therefore, it is extremely effective in a portable wireless telephone device having a cordless telephone function and a cellular telephone function, which is frequently taken out of the cordless area.

[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 an explanatory diagram showing a cycle of the portable wireless telephone device timing means.

FIG. 3 is a block diagram showing a configuration of a conventional portable wireless telephone device.

[Explanation of symbols]

 1 Antenna 2 Cordless Transmitter / Receiver 3 Cellular Transmitter / Receiver 4 Voice Signal Processor 5 Microphone 6 Speaker 7 Display 8 Key Input 9 Control 10 Power Supply 11 Cordless Power Supply 12 First Clock 13 13 Second Clock 14 Cordless zone identification unit 15 Switching unit

Claims (1)

[Claims] 1. A first wireless communication means capable of wireless communication with a base unit of a cordless telephone connected to a public telephone communication network,
In a wireless telephone device having a second wireless communication means capable of wireless communication with a base station in a cellular telephone service network, an identification means for determining whether wireless communication with a cordless telephone is possible, and all of the first wireless communication means. Alternatively, a power supply control means for controlling power supply to a part, a first cycle for outputting a control signal to the power supply control means in a standby state, and a first cycle having a power on period and a power off period; The second cycle, which has a power-off period longer than the cycle, is equipped with a timing means that can be switched according to the output of the identification means, and when the identification means determines that wireless communication with a cordless telephone is possible, the timing means is A portable wireless telephone device which operates in a cycle of 1 and the clocking means operates in a second cycle when the detecting means determines that wireless communication with a cordless telephone is impossible.