JPH05227074A - Portable radiotelephone set - Google Patents

Abstract

PURPOSE:To prevent the excess electric discharge of a car battery due to the long-term phone calls after turning off the ignition while enabling the operation using the battery power supply of the car. CONSTITUTION:An on-vehicle external equipment 13 detects the change from turning on to turning off of a first signal 16 showing the state of turning on and turning off of the ignition. A counting section 20 counts the time after turning-off, and an information section 23 outputs an information sound to expedite the speedy end of speech when the set time comes closer. Upon reaching the set time, the power supply to a portable radio telephone set 1 is forcibly stopped. Thus, the excess electric discharge of the battery of the car can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention uses an external device mounted on a vehicle,
The present invention relates to a portable wireless telephone device that can be operated by using a power source from a car battery.

[0002]

2. Description of the Related Art In recent years, portable radiotelephone devices have been rapidly developed and can be used for a long time in batteries because they are used in a moving vehicle, and a device for supplying power from a battery of the vehicle is connected.

The conventional portable radio telephone device will be described below.
In particular, a case will be described in which an in-vehicle external device is connected in a vehicle and a vehicle battery is used as a power source. Here, only the power supply system according to the present invention will be described. As shown in FIG. 2, the conventional mobile radio telephone device connected to the vehicle-mounted external device 13 includes a mobile radio telephone device 1, an antenna unit 2, a radio unit 3 for modulating and demodulating a radio signal, and an external voice signal. A microphone unit 4 for taking in a sound, a speaker unit 5 for outputting a sound signal to the outside, a voice / data processing unit 6 for processing a sound signal and a data signal, a display unit 7 for displaying, a key input unit 8 for performing a key input, an external unit. An external interface unit 9 for connecting to the device, a battery unit 1 for supplying power to the mobile radio telephone device
0, the power supply switching unit 11 that switches between supplying power to the portable wireless telephone device from the battery unit 10 or externally via the external interface unit 9 is connected to the external interface unit 9 by an external device. When forcibly, it is forcibly switched to the power supply from the outside,
In addition, a telephone control unit 1 that controls the entire wireless telephone device
2, the vehicle-mounted external device 13, the vehicle-mounted device interface unit 14 connected to the portable wireless telephone device 1, the battery power source 15 of the vehicle, the first signal 16 indicating ON / OFF of the vehicle ignition, the portable wireless telephone device 1 External interface section 9
Power is supplied to the portable radio telephone device 1 when the external power supply line 17 supplied from the external power supply line 17 and the first signal 16 indicating the on / off of the ignition is turned on, and when the power is turned off, the portable radio telephone device 1 is turned on. 1, the power supply control unit 18 that stops the power supply to the power supply unit 1, and the power supply control unit 1 even if the first signal 16 is turned off.
8 is constituted by a second signal 19 or the like which is controlled by the portable radio telephone device 1 so as not to be turned off.

Regarding the conventional portable radiotelephone device comprising the above components, the relationship and operation of each component will be described below.

The portable radio telephone device 1 is mounted on the vehicle-mounted external device 13
When connected to and used in a vehicle, the first signal 16 indicating the state of ignition of the vehicle must be on.
That is, power is supplied to the mobile wireless telephone device 1 only when the ignition is on. This is because if the portable wireless telephone device 1 can be turned on or off regardless of the ignition of the vehicle, an over-discharged state of the vehicle battery may occur. When the ignition signal is turned on, the power supply control unit 18 is turned on and power is supplied to the portable wireless telephone device 1 through the external power supply line 17, so that the call operation becomes possible. Here, the portable radio telephone device 1 detects that the first signal 16 is in the ON state by the control unit 12, and holds the power supply control unit 18 of the vehicle-mounted external device 13 in the ON state by the second signal 19. Control. In the talking state, even when the vehicle is stopped (ignition off), the second signal 19 keeps the power control unit 18 in the on state and the mobile radio telephone 1 is supplied with power. As a result, a call can be made even after the ignition is turned off. Further, the fact that the ignition has been turned off is detected by the control unit 12 of the mobile radiotelephone device 1 by the first signal 16, and after the end of the call, the second signal 19 is turned off so that the power supply control unit 18 The power is turned off and the power supply to the mobile wireless telephone device 1 is stopped.

[0006]

However, in the above-mentioned conventional configuration, since the call can be continued even after the ignition of the car is turned off, when the call is made for a long time after the ignition of the car is turned off, the battery of the car Had a problem that the car could not be started due to over-discharge.

The present invention solves the above-mentioned conventional problems, and provides a portable radiotelephone device capable of making a call only after a predetermined period of time after the ignition is turned off and preventing the vehicle battery from being over-discharged. With the goal.

[0008]

In order to achieve the above-mentioned object, a portable radio telephone device of the present invention comprises a radio section for modulating and demodulating a radio signal transmitted and received via an antenna section, and a microphone for taking in an external voice signal. Section, a speaker section for outputting a sound signal to the outside, a voice / data processing section connected to the wireless section, the microphone section, and the speaker section for processing a sound signal and a device control data signal, and a key signal input from the outside A key input section, a display section for displaying, an external interface section for connecting to an external device, a battery section for supplying power to the portable wireless telephone device, and a portable wireless telephone apparatus from the outside via the external interface section. When supplying power, it is composed of a power supply switching unit that switches the power supply from the battery unit to the external power supply, and a telephone control unit that controls the entire mobile wireless telephone device. A vehicle-mounted external device that is connected to a mobile wireless telephone device via an external interface unit receives a vehicle battery power, receives a first signal indicating the on / off state of the vehicle ignition, and the mobile wireless telephone device is busy. Based on the second signal indicating whether or not and the third signal state output from the external device control unit that controls the entire vehicle-mounted external device,
A power supply control unit that controls whether or not power is supplied to the portable wireless telephone device via an external power supply line, a time measurement unit that measures the time after the first signal changes from ON to OFF, and an alarm sound. Is an in-vehicle external device that is configured by an informing unit that outputs a message and an in-vehicle device interface unit for connecting to a mobile wireless telephone device, and can be used in the vehicle by connecting to the in-vehicle external device and using the battery power source of the vehicle. The mobile wireless telephone device has a configuration such as an on-vehicle external device that controls power-off to prevent over-discharging of a battery of a vehicle due to a long-time call after the ignition is turned off.

[0009]

According to the present invention, in the above-mentioned structure, the portable radio telephone device and the in-vehicle external device are connected to each other so that power can be supplied from the battery of the vehicle to the portable radio telephone device, and the time after the ignition of the vehicle is turned off is measured. By performing compulsory power-off control and notifying when the power-off time is approaching, it is possible to prevent uninterrupted call termination and vehicle start failure due to over-discharge of the vehicle battery.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a portable radio telephone device 1 of this embodiment has an antenna section 2, a radio section 3 for modulating and demodulating a radio signal, a microphone section 4 for taking in an external voice signal, and an external voice signal. A speaker unit 5 for outputting a voice, a voice / data processing unit 6 for processing a voice signal and a data signal, a display unit 7 for displaying, a key input unit 8 for key input, and an external interface unit 9 for connecting to an external device. , A battery unit 10 that supplies power to the mobile wireless telephone device 1, a power supply that switches between supplying power to the mobile wireless telephone device 1 from the battery unit 10 or receiving power from the outside via the external interface unit 9. The switching unit 11 forcibly switches to external power supply when an external device is connected to the external interface unit, and also controls the entire wireless telephone device. Telephone control unit 12, in-vehicle external device 13, in-vehicle device interface unit 14 connected to the portable radio telephone device 1, a battery power source 15 of the car, a first signal 16 indicating ON / OFF of the ignition of the car, a portable radio An external power supply line 17 supplied from the external interface unit 9 to the telephone device 1 supplies power to the portable wireless telephone device when ON in response to ON / OFF of the first signal 16 indicating ON / OFF of the ignition, The power control unit 18 for stopping the power supply to the portable radio telephone device when the power is off, the first signal 16
The second signal 19 and the first signal 19 are controlled by the portable radio telephone device 1 so that the power supply control unit 18 does not turn off even when the power turns off.
20 for counting the time after the change of the signal 16 from ON to OFF, an external device control unit 21 for controlling the entire vehicle-mounted external device 13, an ON / OFF of the first signal 16 and the second signal 19 Regardless of this, the third signal 2 for forcibly stopping the power supply from the power supply control unit 18 to the portable wireless telephone device 1
2. It is composed of a notifying unit 23 for notifying.

With respect to the portable radiotelephone device having the above components, the relationship between the components and the operation of the power supply system when connected to the vehicle-mounted external device will be described below.

First, when the portable radio telephone device 1 is connected to the vehicle-mounted external device 13 and used in a vehicle, the first signal 16 indicating the ignition state of the vehicle must be on. That is, power is supplied to the mobile wireless telephone device 1 only when the ignition is on. This is because if the portable wireless telephone device 1 can be turned on or off regardless of the ignition of the vehicle, an over-discharged state of the vehicle battery may occur. When the ignition signal is turned on, the power supply control unit 18 is turned on, and the power supply 17 to the portable radio telephone device 1 is supplied to enable the call operation. At this time, the third signal 22 is in the on state. The second signal 19 is turned on when the portable radio telephone device 1 is in a call state. This is to enable the call even if the ignition is turned off during the call. Therefore, when the ignition is turned off during a call, the mobile radiotelephone device 1 detects the on-off state of the first signal 16 and maintains the second signal 19 in the on state until the call ends, and at the same time The time is detected by the unit 20 and the external device control unit 21, and the time counting unit 20 starts time counting. When the set time is approaching, the external device control unit 21 notifies the operator from the notifying unit 23 that the set time is approaching. When the set time has elapsed, the external device control unit 21 turns off the third signal 22 and forcibly stops the power supply from the power supply control unit 18 to the portable wireless telephone device.

Here, only the power supply control unit is shown as the on-vehicle device connected to the portable radio telephone device as the on-vehicle external device.
It is not limited to this as long as it is an in-vehicle device that is connected to the mobile wireless telephone device and includes a power supply control unit that supplies the battery power of the vehicle to the mobile wireless telephone device. Further, although this function is provided to the vehicle-mounted external device, it may be provided inside the portable wireless telephone device, and the present invention is not limited to this.

[0015]

As is apparent from the above embodiments, according to the present invention, a radio section for modulating and demodulating a radio signal transmitted / received via an antenna section, a microphone section for taking in an external audio signal, and an external unit. A speaker unit that outputs a voice signal, a voice / data processing unit that processes a voice signal and a device control data signal, a key input unit that inputs a key signal from the outside, a display unit that displays, and an external device is connected. To supply power to the mobile wireless telephone device, and to supply power to the mobile wireless telephone device from the outside via the external interface unit, power is supplied from the battery to the external power source. To a portable wireless telephone device, a portable wireless telephone device, and an external interface. A vehicle-mounted external device that is connected via a cable, a first signal indicating the on / off state of the vehicle ignition, and a second signal indicating whether or not the portable wireless telephone device is in a call. Signal and a third signal state output from the external device control unit that controls the entire in-vehicle external device, the power supply for controlling whether to supply power to the mobile wireless telephone device via the external power supply line. Consists of a control unit, a timekeeping unit that measures the time after the first signal changes from ON to OFF, a notification unit that outputs a notification sound, and an in-vehicle device interface unit for connecting to a mobile wireless telephone device. In a vehicle-mounted external device to be connected, a portable wireless telephone device and a vehicle-mounted external device are connected, during a call, a first signal indicating an on / off state of an ignition of a vehicle is detected, and the first signal is turned off by a time counting unit. Start timing And it encourages a final talk of quickly to the operator approaches the set measured time,
By forcibly stopping the power supply to the mobile wireless telephone device after the set time has elapsed, it is possible to prevent over-discharge of the car battery due to uninterrupted call termination and a long call after the ignition is turned off. It is possible to realize a portable wireless telephone device.

[Brief description of drawings]

FIG. 1 is a block diagram of a portable wireless telephone device and a vehicle-mounted external device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional portable wireless telephone device and a vehicle-mounted external device.

[Explanation of symbols]

 1 Mobile Wireless Telephone Device 2 Antenna Part 3 Wireless Part 4 Microphone Part 5 Speaker Part 6 Voice / Data Processing Part 7 Display Part 8 Key Input Part 9 External Interface Part 10 Battery Part 11 Power Supply Switching Part 12 Telephone Control Part 13 Vehicle External Device 14 In-vehicle device interface section 15 Battery power supply 18 Power supply control section 20 Timekeeping section 21 External device control section 23 Notification section

Claims (1)

[Claims] 1. A radio unit for modulating and demodulating a radio signal transmitted and received via an antenna unit, a microphone unit for receiving an external voice signal, and a speaker unit for outputting the voice signal to the outside.
A voice / data processing unit connected to the wireless unit, the microphone unit, and the speaker unit for processing a voice signal and a device control data signal, a key input unit for inputting a key signal from the outside, and a display unit for displaying. An external interface unit for connecting to an external device, a battery unit for supplying power, and when power is externally supplied through the external interface unit, power is supplied from the battery unit or external power supply. A power supply switching unit for switching the power supply, a telephone control unit for controlling the entire device, and a vehicle external device connected via the external interface unit to which the vehicle battery power is input and the vehicle ignition is turned on and off. Is output from an external device control unit that controls the on-vehicle external device, and a second signal that indicates whether the entire device is in a call. A power supply control unit that controls whether or not to supply power through an external power supply line according to the signal state of 3; and a time measurement unit that measures the time after the change of the first signal from on to off. A notification unit that outputs a notification sound,
When the telephone call is used, after the first signal is turned off, the timekeeping unit starts timekeeping, and when the set time approaches, the notifying unit outputs an alarm sound and sets the time In this case, the portable wireless telephone device is arranged so that the external device control unit forcibly turns off the power supply control unit by the third signal to stop the power supply.