JP3493290B2 - Power supply control device in portable information communication terminal - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal for portable information communication (Irisume [trademark], mobile phone, PHS) for transmitting and receiving voice, image, character information and the like using a wireless line.
The present invention relates to the technology of telephones, transceivers, etc., and particularly to the power control of expansion adapters that take in data to terminals for portable information communication.

[0002]

2. Description of the Related Art Conventionally, image communication has not been carried out in a portable information communication terminal, but in recent years, a technique for transmitting and displaying character information and display from a personal computer or a digital camera have been used. It has been proposed to transfer image information by mobile phone (for example, Japanese Patent Laid-Open No. 8-204886).
issue). However, in such a technology, it is still impossible to send and receive a moving image, that is, easily send and receive between telephones without a personal computer or a digital camera. Therefore, an adapter having image capturing, compression, expansion, and modulation / demodulation functions that can be directly connected to a mobile information communication terminal has been developed.

[0003]

In recent mobile phones and terminals for portable information communication, the emphasis is placed on making the talk time longer and lighter and smaller, such as image capturing, modulation / demodulation, compression / expansion, etc. It is not possible to add functions, and various adapters have been developed to increase the functions of the device.

However, in the conventional technique, there is a problem in how to power the adapter. That is, if power is supplied from the terminal to the adapter, the battery life of the terminal is shortened, and if the adapter has a built-in power source, the battery is consumed less, so a switch is provided to frequently turn on and off.
You have to FF. This will increase the size of the switch, and may cause the battery to drain faster if you forget to turn off the switch. The present invention has been made in view of the above problems.

[0005]

In order to solve the above-mentioned problems, the invention of claim 1 uses an electromotive force to provide a wireless circuit.
What voice, image, a terminal of a portable type information communication configured character information to be transmitted and received, portable for image capture adapter for capturing the image information is configured to be inserted and removed independently in the terminal for communicating information, and a power supply for supplying an electromotive force to the terminal separately, the adapter power source for supplying electromotive force independently of the said adapter is provided, the
The operation switch that turns the power supply for the adapter on and off
To provide a power supply control device in the terminal of the portable information communication, characterized in that provided in the terminal. And, in claim 2,
The invention is to turn on / off the power supply for the adapter by using the terminal.
It is done only by the operation from the
Provided with an operation switch to turn on / off the power supply for the adapter
The portable information communication according to claim 1, characterized in that there is no
The power supply control device in the terminal is provided. Furthermore, billing
The invention of Item 3 is a power supply for turning on / off the power supply of the terminal.
Equipped with a switch that works together with the power switch being turned off
Operation switch to turn on / off the power supply for the adapter.
The switch is configured to be turned off.
The power supply control device in the terminal for the portable information communication described
provide. The invention of claim 4 uses electromotive force to
A mobile phone configured to send and receive data over a wireless line
It is a terminal for information communication and sends and receives the data.
A mobile phone with an expansion adapter that can be inserted and removed independently
In a terminal for information communication, supply electromotive force to the terminal
Separately from the power source,
A power supply for the adapter to be supplied is provided, and the power supply for the adapter
The terminal has an operation switch to turn ON / OFF.
Power control in a terminal for portable information communication characterized by
To provide the equipment.

As a result, the terminal can be operated without turning on / off the power of both the terminal and the adapter.
It does not need to be turned on and off frequently, it saves space because of the switch, and does not accelerate battery consumption due to forgetting to turn off the switch.

[0007]

1 and 2 are schematic views of the configuration of an embodiment of the present invention, FIG. 1 is a block diagram showing an internal circuit of a power supply control device of the present invention, and FIG. 2 is a portable device of the present invention. It is an external view of a terminal for shape information communication. In both figures, the same parts are denoted by the same reference numerals, 1 in FIG. 1 is a terminal, and in this way, the portable information communication terminal 1 with a display function can transmit and receive characters and voice information using a wireless line, By attaching the image capturing adapter of the present invention to the terminal 1, an image,
In particular, it is used as a high-performance telephone that can send and receive video information.

Reference numeral 2 denotes a control circuit for controlling each function of the terminal, which includes a communication function 2a for communicating from the terminal 1 through the antenna 5, a display function 2b for displaying received character data and the like on the liquid crystal display unit 4, and a button. Communication by operation, the image capturing adapter of the present invention, a shutter of the camera when operating as an electronic still camera, a button operating circuit 2c for performing such operation when operating as a moving image, and a circuit having other functions It is composed of. Button operation circuit 2
An operation switch 2d for turning on / off the power supply on the adapter side of the present invention is provided in c, and is connected via a signal line 26 for a start command signal from the terminal.

Reference numeral 3 denotes a power supply battery for a terminal, which is not shown, but a DC-DC converter for converting the power supply battery 3 into a predetermined voltage with which the circuit operates stably, and a power supply switch 3a for supplying electromotive force to the terminal. including. The power switch 3a is connected to the button operation circuit 2c, and the power switch 3a is turned on.
The operation switch 2d is turned off in synchronism with FF, and the power source of the adapter 11 is turned off.

Reference numeral 11 denotes an adapter for capturing an image,
12a is a CCD for converting video information into digital information,
Reference numeral 12 denotes an image sensor such as a C-MOS.
a, a control circuit of an adapter including a circuit for compressing / decompressing digital information, a circuit for performing modulation / demodulation voice processing, and the like.

Reference numeral 13 is a power supply battery for supplying electromotive force to the adapter side. In the present invention, the power supply battery 13 is provided in the adapter 11 in addition to the power supply battery 3 of the terminal. The reason is that in order to reduce the consumption of the battery power source 3 of the terminal 1, that is, if the power source depends only on the battery power source 3, the image sensor consumes more power than the power used for communication in the terminal 1. This is because after the communication is completed, the battery may be exhausted and a phone call cannot be made. However, in order to activate the adapter 11 only with the power supply battery 3 of the terminal 1, it is possible to solve it by inserting a large power supply battery 3 of the terminal 1 from the beginning, but for that reason, the terminal 1 becomes large and portable. As the present invention, the terminal 1
Independently of this, the adapter 11 has a power supply battery 13. According to this embodiment, the power supply battery 11 is not provided with an ON / OFF switch. The reason is that the power consumption of the adapter 11 is large as described above, so that the power supply of the adapter 11 can be controlled only by the terminal 1 without forgetting to turn off the power.
However, the configuration is not limited to this, and the adapter 1
An ON / OFF switch may be provided independently for each unit 1. At this time, even if you forget to turn off the power, the power supply on the terminal side is OF
Simultaneously with F, the switch 2d of the terminal 1 is turned off, the signal line 26 becomes LOW, and the power supply battery 13 of the adapter 11, which will be described later, can be turned off.

Reference numeral 14 denotes a DC-DC converter circuit on the adapter side, which is the same as the power source 3 of the terminal 1 described above.
It is for converting the power supply 13 of No. 1 into a voltage at which the circuit of the adapter 11 operates stably. Reference numeral 15 is a semiconductor switch, which is a switch for activating a circuit for performing a process of taking in video information by a signal from the signal line 26.
A data line 7 connects the terminal and the adapter.

Reference numeral 16 is an image pickup section to which a lens is attached, and image information can be fetched from here via the image pickup element 12a. Reference numeral 6 is a receiver for receiving voice information transmitted from the other party's telephone via the antenna 5, and reference numeral 7 is the antenna 5 for receiving voice information from its own terminal 1.
It is a transmitter that transmits via a wireless line through.

Next, the operation in such a configuration will be described. In FIG. 2, when the data line 27 of the terminal 1 and the adapter 11 is attached and the operation switch 2d is pressed as shown in FIG. 2, the signal line 26 becomes HIGH, the semiconductor switch 15 becomes conductive, and the adapter 11
The power supply battery 13 is turned on to supply power to the circuit of the adapter 11. After that, the video information from the lens 16 is taken in, and after various signal processing is performed in the control circuit 12, the taken-in image information is sent to the terminal through the data line 27, and the communication function of the control circuit 2 causes the audio / image to be transmitted to the antenna 5 Is transmitted to the other party's terminal via.

Next, when the adapter 11 is not operated,
The signal line 26 is set to LOW by the operation switch 2d of the terminal 1. Then, the semiconductor switch 15 becomes non-conductive, the current consumption of each circuit of the adapter 11 becomes zero, and at the same time, the DC-
The HIGH signal is given to the enable terminal 17 of the DC converter 14, the consumption current of the DC-DC converter 14 is suppressed to zero, and as a result, the power supply battery 13 is turned off.

Further, the power switch 3a of the terminal 1 is turned off.
Then, the operation switch 2d of the operation button circuit 2c turns off.
When it becomes F, the signal line 26 is set to LOW, and the power switch 13 is turned off as described above.

Although the adapter 11 of the present invention is shown as an example of an image capturing adapter, it is not limited to this, and it is connected to, for example, an irisume (trademark) sanitary communication terminal for transmitting and receiving high-power electromagnetic waves. The present invention can also be used in this case.

[0018]

As described above, according to the configuration of the present invention, a power supply battery is provided in an adapter attached to a mobile information communication terminal separately from the power supply battery of the mobile information communication terminal, and the adapter is installed from the terminal side. By turning on / off the power of the device, both the power of the terminal and the adapter can be turned on / off.
Since it can be operated on the terminal without performing OFF management, frequent ON / OFF operations are not performed, there is no space due to the switch, and there is no need to accelerate battery consumption due to forgetting to switch off. Has a remarkable effect.

[Brief description of drawings]

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

FIG. 2 is a schematic diagram illustrating an example embodiment of the present invention.

[Explanation of symbols]

1: Terminal for portable information communication 2: Terminal control circuit 2a: Communication function 2b: Display function 2c: Button operation circuit 2d: Operation switch 3: Power supply battery for terminals 4: LCD display 11: Adapter for capturing images 12: Adapter control circuit 13: Battery 14: DC-DC converter 15: Semiconductor switch 16: Imaging unit 17: Enable terminal 26: Enable signal line 27: Data line

Claims (4)

(57) [Claims] 1. A voice circuit using an electromotive force,
A portable information communication terminal configured to be capable of transmitting and receiving image and character information, the portable information communication terminal being configured such that an image capturing adapter for capturing the image information can be independently inserted and removed. In the terminal, a power source for an adapter that independently supplies an electromotive force is provided in the adapter separately from a power source that supplies an electromotive force to the terminal .
The terminal is equipped with an operation switch to turn the power on / off
A power supply control device in a terminal for portable information communication. ON / OFF of wherein power for the adapter is performed by only the operation from the terminal, according to claim 1 which is in the adapter, characterized in that it is provided an operation switch for turning ON / OFF the power supply said adapter A power supply control device in the portable information communication terminal described. 3. A power source switch for turning on / off the power source of the terminal.
2. The portable information communication according to claim 1, further comprising an switch, wherein an operation switch for turning on / off the power supply for the adapter is turned off in association with turning off the power switch. Control device in the terminal for the car. 4. A portable information communication terminal configured to transmit and receive data by a wireless line using electromotive force, wherein an expansion adapter can be independently inserted and removed to transmit and receive the data. In the configured terminal for portable information communication, an adapter power supply for independently supplying electromotive force is provided in the adapter separately from a power supply for supplying electromotive force to the terminal, and the adapter power supply is turned on. / OFF operation
A power supply control device in a terminal for portable information communication , wherein a switch is provided in the terminal.