JP2903747B2 - Mobile phone device with pager function - Google Patents

Abstract

PURPOSE:To ensure only a reception channel of radio calling by monitoring a power supply so as to revise the portable telephone set mode into the pocket beeper mode with small power consumption before the power supply is turned off. CONSTITUTION:A system control section 13 monitors a remaining power capacity of a power supply 11 and converts the capacity into a talking available time in the portable telephone mode and displays the time onto a liquid crystal display device 15. When the talking available time reaches a preset switching time optionally based on the display, a changeover switch 12 selects the position of the supply destination of remaining power from a portable telephone transmission reception section 2 to a pocket beeper reception section 6 under the control of a system control section 13 thereby selecting the pocket'-, /mode. Thus, radio calling even in the worst case by adding the inexpensive pocket between reception section with small power consumption to the portable telephone set.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone device, and more particularly to a portable telephone device functioning as a pager when a built-in power supply is consumed.

[0002]

2. Description of the Related Art In recent years, small and lightweight portable telephone apparatuses have become widespread. A mobile phone device is a wireless communication device for transmitting and receiving a call, and the life of a built-in battery is usually several hours when the device is in a call standby state and several tens of minutes during a call.

On the other hand, a receiving device (hereinafter abbreviated as “pager”) in a radio paging service (pager service) widely used because of its small size and low cost receives a simple message including a telephone number. Since it is a wireless receiver that performs only transmission and does not perform transmission with large power consumption, the life of the built-in battery is generally several days to several months in continuous standby.

[0004]

As described above, the conventional portable telephone device does not always secure a sufficient talkable time due to the restrictions on carrying small and light, and the power is cut off during use. It may be. In such a case, the conventional mobile phone device has a drawback that it becomes completely nonfunctional until the charging or replacement of the built-in battery is completed.

Therefore, the present invention comprises a pager service receiving means, and displays the state of consumption of a built-in battery in terms of a talkable time in a mobile phone mode and a callable time in a pager mode, and displays a call. When the time reaches a preset switching time, automatically or arbitrarily manually, by switching from the mobile phone mode to the pager mode, a mobile phone device capable of operating at least as a pager when the built-in battery is exhausted. It is a suggestion.

[0006]

In order to solve the above-mentioned problems, according to the present invention, a receiving means for a pager service, a power consumption state is displayed, and the reception is performed from a cellular phone mode based on the power consumption state. Control means for switching to the pager mode.

[0007]

In FIG. 1 showing one embodiment of the present invention, when the changeover switch 12 controlled by the system control section 13 is at the T side, the power of the power supply 11 is supplied to the portable telephone transmitting / receiving section 2, and this apparatus is portable. Functions as a telephone device. on the other hand,
When the changeover switch is on the B side, the power is supplied to the pager
Supplied and function as a pager.

The system control unit 13 converts the power remaining in the battery power supply 11 into a talkable time when operating as a mobile phone and a standby time when operating as a pager, and provides a liquid crystal display (LCD). 15 is displayed. Further, when the switching time is set in advance via the dial key 16, the system control unit 13 notifies the user by the buzzer sound of the buzzer 14 when the callable time reaches the switching time, and together with the end of the call. The changeover switch 12 is switched from the T side to the B side to switch from the mobile phone standby mode to the pager standby mode. This mode switching can be performed at any time by operating the dial key 16.

In the portable telephone mode, an incoming call received by the portable telephone transmitting / receiving unit 2 via the antenna 1 is notified as a ringing tone from the buzzer 14 via the system control unit 13. The outgoing call is made by dialing with the dial key 16, and the call is made by the receiver 3 and the transmitter 4.

On the other hand, in the case of the pager mode, the radio call received by the pager receiving section 6 via the antenna 5 is notified as a ringing tone from the buzzer 14 via the system control section 13 and the caller is called. Is displayed on the LCD 15.

As described above, when the power capacity remaining in the battery power supply 11 becomes insufficient, the mobile phone mode requiring relatively large power is terminated and the pager mode is set.
Prevents the device from completely failing.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the portable telephone device according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an example of the present invention. The mobile phone transmission / reception unit 2 transmits and receives, for example, an 800 MHz band radio wave to or from a base station (not shown) of the mobile phone via the antenna 1. That is, an incoming call from a partner terminal (not shown) is transmitted to the buzzer 14 via the base station, the antenna 1, the mobile phone transceiver 2, and the system controller 13.
Is notified as a ringing tone. In addition, a telephone call with the partner terminal is performed by the receiver 3 and the transmitter 4 using the mobile phone transmitting / receiving unit 2,
This is performed via the antenna 1 and the base station. The call to the destination terminal is made by the dial key 16 using the system control unit 13,
This is performed via the mobile phone transmitting / receiving unit 2, the antenna 1, and the base station.

As a result of a standby or a call in the mobile phone mode, the remaining power capacity of the power supply 11 composed of a dry battery, a nickel cadmium battery, or the like decreases. The remaining power capacity is converted into a talkable time in the mobile phone mode and a callable time in the pager mode by the system control unit 13 monitoring the power supply 11 and displayed on the liquid crystal display (LCD) 15.

The switch 12 can be switched from the T side to the B side via the system control unit 13 by a predetermined operation of the dial key 16 with reference to the displayed call and the standby time, so that the portable telephone mode is set. The manual switching from the to the pager mode can be performed arbitrarily. The system control unit 13 includes a dial key 1
6, the switching time can be set in advance, so that when the callable time becomes shorter than the set switching time, the system control unit 13 notifies the buzzer 14 and switches the call together with the end of the call. Switch from T side to B
Automatically switch to the side.

Thus, the remaining power of the power supply 11 is
The data is supplied to the pager receiving section 6 via a changeover switch 12 that is automatically or manually controlled, and the portable telephone device functions as a pager.

The pager receiving section 6 receives, for example, a signal from a radio paging base station (not shown) through the antenna 5 through the antenna 5.
Receives radio waves in the MHz band. That is, a call from the partner terminal is reported as a ringing tone from the buzzer 14 via the base station, the antenna 5, the pager receiver 6, and the system controller 13, and a message including the telephone number of the partner terminal is displayed on the LCD 15. indicate.

FIG. 2 is a view showing a display example of the LCD 15. Reference numeral 21 denotes a message display area. In the mobile phone mode, the telephone number of the other party input from the dial key 16 for calling is displayed in this area 21. In the pager mode, the received message (telephone number or the like) of the other party is displayed in the message area 21.

Reference numeral 22 denotes a display area of a talkable time in the mobile phone mode. In the illustrated example, the remaining capacity of the power supply 11 is "remaining 12 minutes" as a talk time. In addition, the parentheses in the lower row indicate the waiting time “240 hours” when switching to the pager mode.

Reference numeral 23 denotes a case where the switching time set in the system control unit 13 via the dial key 16 is "5 minutes before the power is turned off." This indicates that automatic switching to the bell mode is performed.

As described above, according to the present invention, by adding the pager receiving unit 6, when the function as the portable telephone device is completely lost due to power-off or the like, at least it functions as a pager and receives data. This is to secure a channel.

[0022]

As described above, according to the present invention, a small and inexpensive and small power consumption pager receiving unit is provided for a portable telephone device whose operation cost is relatively high and whose power consumption is relatively high. By adding, in a state where the conventional mobile phone device completely loses its function due to power-off or the like, it is possible to switch from the mobile phone mode to the pager mode and maintain the one-way information transmission by the receiving channel. is there.

In the case where the user cannot release his hand immediately for the purpose, by switching to the pager mode, there is an effect that the display can be used as a simple answering machine having a message memory.

[Brief description of the drawings]

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

FIG. 2 is a display example on a liquid crystal display 15 in the embodiment.

[Explanation of symbols]

 1, 5 Antenna 2 Cellular Phone Transmitter / Receiver Unit 3 Receiver 4 Transmitter 6 Pager Receiver 11 Power Supply 12 Changeover Switch 13 System Control Unit 14 Buzzer 15 Liquid Crystal Display (LCD) 16 Dial Key 21 Message Display Area 22 Talk Time Display Area 23 Automatic switching display area

Claims (1)

(57) [Claims] 1. A paging service receiving means, and a control means for displaying a power consumption state and switching from a cellular phone mode to a pager mode by said receiving means based on the power consumption state. Mobile phone device with a pager function.