JP2002262357A - Secondary battery for mobile terminal and the mobile terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase contents data storage capacity of the entire mobile terminal without increasing the capacity of a memory mounted on a mobile terminal body. SOLUTION: A secondary battery 1 is removably mounted to a mobile terminal body 10 receptible of contents data sent externally. The mobile terminal is provided with a connector 45 that is conductively connected to the mobile terminal body 10 when the connector 45 is mounted on the mobile terminal body 10, a battery cell 35 that can be charged by voltage supplied externally, a memory 40 electrically connected to the battery cell 35, and a controller 38 that receives contents data sent via the connector 45 from the mobile terminal body 10 when the connector 45 is connected to the mobile terminal body 10 and stores the data to the memory 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a secondary battery for a portable terminal and a portable terminal using the secondary battery as a power source.

[0002]

2. Description of the Related Art Voice communication and mail transmission have been the main communication functions of conventional mobile terminals such as mobile phones, but recently, large-capacity multimedia content data such as images and games have been distributed from service providers. As a result, the content data can be downloaded from a service provider, stored in a memory mounted on the main body of the portable terminal, and displayed on a display such as a liquid crystal display mounted on the main body.

[0003]

SUMMARY OF THE INVENTION In a conventional portable terminal,
Due to the portability, further miniaturization has been achieved, and therefore, the capacity of the memory mounted on the portable terminal main body is limited.

[0004] However, conventionally, large-capacity multimedia content data such as images and games have to be stored only in a limited-capacity memory mounted on the portable terminal body, so that the amount of content data to be stored is large. Has not been able to significantly improve its amusement.

[0005] In particular, exchange of content data stored in the memory of a portable terminal between users is limited to communication between the portable terminals, and is seldom performed in terms of communication fee. Therefore, there is also a problem in terms of entertainment between a plurality of users.

The present invention has been made in view of the above circumstances, and has been made without increasing the capacity of the memory mounted on the main body of the portable terminal and without increasing the size of the entire portable terminal. It is a first object of the present invention to increase the storage capacity of content data.

Further, the present invention has been made in view of the above circumstances, and does not use the communication function of the portable terminal.
It is a second object of the present invention to enable exchange of content data between a plurality of users.

[0008]

According to a first aspect of the present invention, there is provided a secondary battery detachable from a portable terminal body capable of receiving externally transmitted content data, A connection terminal for electrically connecting to the portable terminal body in a mounted state with respect to the portable terminal body, a battery cell chargeable by a voltage supplied from the outside, and a conductive connection to the battery cell A memory and, when the connection terminal is connected to the mobile terminal body, storage means for receiving content data transmitted from the mobile terminal body via the connection terminal and storing the content data in the memory .

According to a second aspect of the present invention, there is provided a portable terminal capable of receiving content data transmitted via a communication line, the portable terminal body receiving the content data, A secondary battery that is detachable from the portable terminal body and supplies driving power to the portable terminal body in a mounted and energizable state, wherein the portable terminal body is in a state where the secondary battery is attached. Means for transmitting received content data to the secondary battery, wherein the secondary battery is capable of being charged by an externally supplied voltage, a memory conductively connected to the battery cell, and Storage means for receiving content data transmitted from the terminal body via the connection terminal and storing the content data in the memory;

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a secondary battery for a portable terminal and a portable terminal according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows, for example, a portable telephone 2 as a portable terminal in which a portable terminal secondary battery 1 according to an embodiment of the present invention is mounted, and an image, a sound, a game and the like for the portable telephone 2. FIG. 2 is a diagram showing a service provider 4 that provides (distributes) multimedia content data such as (program) via a communication network {Internet, mobile communication network (mobile base station, etc.)} 3.

As shown in FIG. 1, the mobile phone 2 includes a mobile phone body 10 for receiving and downloading multimedia content data, and the secondary battery 1 is detachable from the mobile phone body 10. When mounted on the mobile phone body 10, drive power is supplied to the mobile phone body 10.

The service provider 4 includes the mobile phone 1
In response to a download request from 0, multimedia content data (encoded, multiplexed and error-correction-encoded content data) such as an image, a sound, and a game program corresponding to the download request are subjected to, for example, CDM modulation and modulation. The transmitted CDM signal is transmitted to the download request transmission destination mobile phone 2 via the transmission antenna.

On the other hand, as shown in FIG. 1, the portable telephone main body 10 receives the CD transmitted through the communication network 3.
Transmission / reception circuit 18 for receiving M signal via antenna 17
And a modulation / demodulation circuit 19 for performing CDM demodulation of the CDM signal received by the transmission / reception circuit 18 and restoring the content data. Encoding / decoding processing section 20 for generating data, a decoding section 21 for demultiplexing and decoding the generated content data to generate a plurality of contents (audio information, image information, etc.), Speaker 22 for outputting audio information and display (liquid crystal display) for displaying and outputting image information among the contents
23.

Further, the portable telephone body 10 includes a microphone 25 for collecting the transmitted voice of the speaker, and an encoding section for encoding the transmitted voice collected by the microphone 25 to generate voice encoded data. 26.

The encoding / decoding processing unit 20 has a function of performing error correction encoding processing on encoded data including audio encoded data encoded by the encoding unit 26 in packet units. Reference numeral 19 has a function of performing CDM modulation on the coded data subjected to the error correction coding processing.

Further, the transmission / reception circuit 18 has a function of transmitting the CDM-modulated CDM signal to a predetermined destination via the antenna 17.

The portable telephone body 10 includes a controller 30 for controlling the CDM modulation / demodulation processing in the modulation / demodulation circuit 19, the encoding / decoding processing in the code / decoding processing part 20, and the code processing in the decoding part 21, respectively. A memory 31 for storing a plurality of data files such as a program necessary for processing of the controller 30 and a data file for an available content data introduction screen, and a key input unit including a function key and a dial key.
A plurality of processing commands (a selection command by selecting a display element on the display 23, a transmission command by a destination dial input, a content data introduction screen display command by a predetermined key operation, a controller 30 is provided with an operation unit 32 capable of transmitting an operation command when a game program as content data is being executed, a command to load data stored in the memory 31, and the like.

Furthermore, the main body 10 of the mobile phone is provided with the secondary battery 1.
Connection terminal (connector) 3 that is connected to the connection terminal (connector) on the secondary battery side so that it can be energized and communicable when mounting
The power supply terminal and the communication terminal of the connector 33 are connected to the controller 30.

On the other hand, the secondary battery 1 is connected in series to, for example, a lithium ion battery cell 35 for supplying drive power (voltage) to each component constituting the mobile phone main body 10 and a lithium ion battery cell 35. Overcharge control FET
36 and an over-discharge control FET 37,
The controller 38 monitors the battery voltage of the battery cell 35 via the gates 37 and 37 and controls the gates of the FETs 36 and 37 to protect the battery cell 35 from overcharge and overdischarge. And a thermistor 39 for transmitting to a charger described later.

The secondary battery 1 includes a memory 40 for data storage and storage electrically connected to the lithium ion battery cell 35.
8 is connected.

Further, the secondary battery 1 has a connection terminal (connector) 40 for connecting to the connector 33 of the mobile phone main body 10 when the secondary battery 1 is mounted on the mobile phone main body 10. That is, the current-carrying terminal of the lithium ion battery cell 35 in the connector 40 is
3 and the communication terminal of the connector 40 with respect to the controller 38 is connected to the communication terminal of the connector 33.

The secondary battery 1 is provided with a connector 45 including a charging energizing terminal for the lithium ion battery cell 35 and a temperature detection signal output terminal. The connector 45 is connected to the charging circuit 51 of the charger 50. When the secondary battery 1 (its lithium ion battery cell 35) is connected to the charger 50 via the connectors 45 and 52, A
It can be charged by a voltage supplied from the charging circuit 51 using the C power source as a power source.

Next, the overall operation of this embodiment will be described.

A user carrying the mobile phone 2 (mobile phone main body 10) on which the secondary battery 1 is mounted operates the key input unit of the operation unit 32 to instruct the controller 30 to display the content data introduction screen. Enter

The controller 30 reads the content data introduction screen data file from the memory 31 in response to the input content data introduction screen display command, and displays it as a content data introduction screen on the display 23 via the decoding unit 21 (FIG. 2). Step S1).

The user operates the key input section to select content data to be downloaded to the mobile phone 2 on the content data introduction screen displayed on the display 23.

At this time, the controller 30 transmits a content data download command to the service provider 4 corresponding to the selected content data via the transmission / reception circuit 18 and the communication network 3 (step S2). .

In response to the download command, the service provider downloads the corresponding content data to the command transmitting mobile phone 2 via the communication network 3 (step S3).

The downloaded content data is
Received via the antenna 17 and the transmitting and receiving circuit 18,
The data is demodulated and decoded through the modulation / demodulation circuit 19 and the code / decoding processing unit 20. As a result, content data corresponding to the download request is generated.

At this time, the controller 30 transmits the generated content data to the connector 33 and the connector 45.
(The communication terminal), the controller 3 of the secondary battery 1
8 (step S4).

The controller 38 of the secondary battery 1 stores the transmitted content data in the memory 40 (step S5).

As a result, the content downloaded from the service provider 4 is stored in the memory 40 mounted on the secondary battery 1, that is, the memory 40 of the secondary battery 1 which can be detached (separated) from the mobile phone 2 (the main body 10). Data can be saved.

That is, according to the present embodiment, the memory 40 is mounted on the secondary battery 1 as a power supply mounted on the mobile phone main body 10, so that the content data downloaded to the mobile phone main body 10 can be downloaded. , The secondary battery 1 (memory 4
0) can be saved.

Therefore, without increasing the capacity of the memory 31 mounted on the portable telephone body 10, that is,
The content data storage capacity of the entire mobile phone 2 can be increased without increasing the size of the entire mobile phone 2.

Further, according to the present embodiment, the memory of the secondary battery 1 is shared by sharing the secondary battery 1 between a plurality of mobile phones 2 (the same model, a plurality of models of the same maker, and the models of other manufacturers). When the secondary battery 1 is removed from the mobile phone main body 10 and exchanged among a plurality of users in a state where the content data is stored and stored in the secondary battery 40, the secondary battery 1 is used without using the communication function of the mobile phone main body 10. The content data stored in the memory 40 can be exchanged.

In the present embodiment, for example, the content stored in the memory 31 is processed by the controller 30 and the controller 38 in response to the load command input by the processing of the operation unit 32 based on the operation of the key input unit by the user. The data can be loaded into the memory 40 of the secondary battery 1, and the content data can be stored efficiently.

In the present embodiment, for example, the secondary battery 1 is connected to the charger 50 in a state where an information device including a computer such as a personal computer is connected to an external connection terminal (not shown) of the charger 50. Thus, the content data stored in the memory 40 of the secondary battery 1 can be uploaded to the information device by the processing of the controller 38. Further, the content data stored in the information device can be uploaded from the information device by the processing of the computer. Can be downloaded to the memory 40 of the secondary battery 1.

Therefore, the efficiency of using the storage capacity of the memory 40 of the secondary battery 1 can be improved, and the types of content data that can be played on the mobile phone 2 can be increased.

In the present embodiment, the portable terminal is a portable telephone, but the present invention is not limited to this.
The present invention is also applicable to other portable information terminals.

In this embodiment, the secondary battery is a lithium ion battery. However, the present invention is not limited to this, and can be applied to other secondary batteries.

[0042]

As described above, according to the secondary battery for a portable terminal and the portable terminal of the present invention, the content data transmitted to the portable terminal body can be stored in the memory of the secondary battery. Therefore, the content data storage capacity of the entire portable terminal can be increased without increasing the capacity of the memory mounted in the portable terminal body and without increasing the size of the entire portable terminal.

As a result, the amount and type of content data that can be enjoyed on the portable terminal can be increased, and the amusement can be improved.

According to the secondary battery for a portable terminal and the portable terminal of the present invention, the communication function of the portable terminal body is used by removing the secondary battery from the portable terminal body and exchanging the secondary battery among a plurality of users. Instead, the content data stored in the memory of the secondary battery can be exchanged.

Therefore, a large number of content data can be enjoyed while keeping the communication cost low.

Further, according to the secondary battery for a portable terminal and the portable terminal of the present invention, since the content data stored in the information device can be downloaded to the memory of the secondary battery via the charger, the portable terminal can be used. Can further increase the types of content data that can be played.

[Brief description of the drawings]

FIG. 1 is a diagram showing a mobile phone in which a secondary battery for a mobile terminal according to an embodiment of the present invention is mounted, and a service provider 4 for distributing content data to the mobile phone.

FIG. 2 is a schematic flowchart for explaining an example of processing of a controller of the portable terminal main unit, a service provider, and a controller of a secondary battery in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Secondary battery 2 Mobile phone 3 Communication network 4 Service provider 10 Mobile phone main body 30 Controller 31 Memory 33 Connector 35 Lithium-ion battery cell 38 Controller 40 Memory 45 Connector 50 Charger 51 Connector

Claims (4)

[Claims] A secondary battery detachable from a portable terminal main body capable of receiving content data transmitted from the outside, wherein power is supplied to the portable terminal main body when the secondary battery is attached to the portable terminal main body. A connection terminal for connection;
A battery cell that can be charged by an externally supplied voltage;
A memory conductively connected to the battery cell, and in a state in which the connection terminal is connected to the mobile terminal main body, content data transmitted from the mobile terminal main body via the connection terminal is received and stored in the memory. A secondary battery for a portable terminal, comprising: 2. The portable terminal secondary battery according to claim 1, wherein the content data is data transmitted from the content data providing service provider to the portable terminal via a communication network. A secondary battery for a portable terminal, comprising: 3. The secondary battery for a portable terminal according to claim 1, wherein the storage unit is configured to store the secondary battery in a state where the secondary battery is connected to a charger for charging the battery cell. And a means for storing content data downloaded from an information device including a computer connected to the memory in the memory. 4. A portable terminal capable of receiving content data transmitted via a communication line, comprising: a portable terminal body for receiving the content data; and a detachable, attachable, and energizable portable terminal body. A secondary battery that supplies driving power to the portable terminal body in a state, wherein the portable terminal body transmits received content data to the secondary battery when the secondary battery is mounted. The secondary battery comprises: a battery cell that can be charged by a voltage supplied from the outside; a memory conductively connected to the battery cell; and content transmitted from the main body of the mobile terminal via the connection terminal. Storage means for receiving data and storing the data in the memory.