KR20060085719A - Battery apparatus for changing discharge characteristic of compound terminal - Google Patents

Abstract

The present invention relates to a battery device in which the discharge characteristics of a hybrid terminal including a portable communication module and a personal information module are changed. After the power of the communication module is turned off, there is an advantage that can increase the use time of the personal information module.

Composite terminal, battery, battery discharge characteristics, backup battery

Description

BATTERY APPARATUS FOR CHANGING DISCHARGE CHARACTERISTIC OF COMPOUND TERMINAL}             

1 is a graph showing the battery discharge characteristics of a composite terminal according to the prior art,

2 is a block diagram of a hybrid terminal according to the present invention; and

3 is a graph showing the battery discharge characteristics of the composite terminal according to an embodiment of the present invention.

The present invention relates to a battery device in which the discharge characteristics of a hybrid terminal are changed. In particular, the hybrid terminal having a personal information terminal function and a portable communication terminal function changes the slope of the discharge curve of the battery to improve the usage time of the personal information terminal function. A device for stretching.

Recently, the use of mobile communication terminals is increasing rapidly due to the convenience of portable. As the use of the mobile communication terminal increases, service providers (terminal manufacturers) develop complex terminals that can use various modules in addition to the mobile communication function to maximize the convenience of carrying the mobile communication terminal. have.

In recent years, the most commonly used composite terminal is a casing that combines a personal digital assistant (PDA) function with a mobile phone function and an information retrieval and storage function using the Internet. There is an increasing use of composite terminals that can be supplied to perform independent operations.

The PDA is a generic name for a palm-sized small device having a calculation, information storage and retrieval function for personal or business use. It is also used to maintain schedule calendar and address book information.

Most PDAs are equipped with small keyboards for entering commands, but some PDAs also have electronic sensitive pads that can sense commands written by certain parts of the user's body parts and touch pens. have.

As described above, the PDA is used for storing and retrieving a schedule, an address book, a memo input, and the like, and recently, many PDA applications have been developed, and a multi-composite terminal having a telephone system and a pager system coupled to the PDA has been used.

Since the composite terminal can perform independent operations by supplying separate power sources, it is necessary to efficiently control power supply for each module.

1 illustrates a battery discharge characteristic of a composite terminal according to the prior art. Hereinafter, the discharge characteristic curve shows a case where the operating temperature of the battery is within an appropriate range and the current flowing to the load is constant. In general, when the operating temperature of the battery is higher or lower than the appropriate temperature, the discharge characteristic curve is rapidly changed.

The horizontal axis of the graph shown in FIG. 1 represents the usable time of the battery, and the vertical axis represents the power of the battery. In addition, VH denotes a maximum usable voltage of the battery, VL denotes a minimum usable voltage of the battery, Va denotes a voltage at which the battery discharge characteristic is stabilized, and Vb denotes a voltage at which the battery discharge characteristic drops.

As shown in the graph of FIG. 1, the voltage of the battery rapidly decreases from the voltage VH to Va (section D1) (eg, 4.2 to 3.9V), thereby shortening the service time of the battery. Since the voltage is stabilized from the voltage Va to Vb (D2 section) (for example, 3.8 to 3.6V), the battery life is maintained for a certain time. In addition, since the voltage decreases again from the voltage Vb section (D3 section) (for example, 3.6 to 2.0V), the battery life is shortened.

Since the power required of the portable communication module performing the portable communication function in the hybrid terminal is greater than the power required of the personal information terminal module performing the personal information terminal function, when the point A of FIG. Is turned off, and when the point B of FIG. 1 is turned off, the power of the personal information terminal module is turned off. That is, the section D3 of FIG. 1 uses only the personal information terminal function.

As described above, when the power of the battery falls below a predetermined level (A), the power of the battery is rapidly reduced, and thus the use time is reduced. That is, since the time from the time (A) of turning off the portable communication module to the time (B) of turning off the power of the personal information terminal module is too short, the use time of the personal information terminal module is shortened. .

Accordingly, an object of the present invention is to provide a battery device for increasing the use time of the personal information terminal module in the multi- terminal.

Another object of the present invention is to provide a battery device for increasing the use time of the personal information terminal module by changing the cell discharge characteristics in the composite terminal.

According to a first aspect of the present invention for achieving the above object, the battery device that changed the discharge characteristics of the composite terminal having a portable communication module and a personal information module, the slope of the battery discharge curve of the low voltage point where the voltage is sharply reduced It is characterized by including a battery by gently adjusting.

According to a second aspect of the present invention, a battery device in which the discharge characteristic of a composite terminal including a plurality of modules is changed includes a battery in which the slope of the battery discharge curve of the low voltage section in which the voltage suddenly decreases is gently adjusted. Among the plurality of modules is characterized in that to increase the use time of the module used in the low voltage section.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, the present invention will be described a technique for increasing the use time of the PDA function by changing the discharge characteristics of the composite terminal having a mobile phone function and a PDA (Personal Date Assistant: PDA) function.

2 shows a block configuration of a composite terminal according to the present invention.

Referring to FIG. 2, the composite terminal 200, as shown, personal information terminal module 210, portable communication terminal module 220, display unit 240, power supply unit 250, LCD (Liquid Crystal Display) 230 and a module selector 260.

The portable communication terminal module 220 performs a wireless communication function like a mobile communication terminal, and the personal information terminal module 210 performs a personal information management function such as a PDA. The display unit 240 displays the operation state information according to the operation of the personal information terminal module 210 and the portable communication terminal module 220 through the LCD (230).

The module selector 260 controls a power supply operation of the power supply unit 250 to selectively supply power to the personal information terminal module 210 and the portable communication terminal module 220. The power supply unit 250 selectively supplies power required for the operation of the personal information terminal module 210 and the portable communication terminal module 220 under the control of the module selector 260.

The personal information terminal module 210 includes a first control unit 212, a first key input unit 214, and a first storage unit 216.

First, the first control unit 212 controls the overall operation of the personal information terminal module 210, and synchronizes the synchronization required for the interaction with the second control unit 224 of the mobile communication terminal module 200. Do this.

The first key input unit 214 is provided with a plurality of keys for coordinating operations of the personal information terminal module 210 and the portable communication terminal module 220 which are powered. That is, when a command for controlling the operation of the personal information terminal module 210 is input by the first key input unit 214, the first control unit 212 performs the operation corresponding to the selected command. Controls the operation of the terminal module 210. In addition, when a command for controlling the operation of the portable communication terminal module 220 is input by the first key input unit 214, the first control unit 212 transmits the selected command to the portable communication terminal module 220. Transmission to the second control unit 224. Accordingly, the second control unit 224 of the mobile communication terminal module 220 controls the operation of the mobile communication terminal module 220 to perform an operation corresponding to the command transmitted from the first control unit 212. do.

The first storage unit 216 includes a random access memory (RAM), a read only memory (ROM), and a flash ROM, and stores a plurality of programs for performing a personal information management function. And stores the edited and added data according to the operation of the personal information terminal module 210.

The mobile communication terminal module 220 includes a wireless processor 222, a second controller 224, a second key input unit 226, a second storage unit 228, and a voice processor 229.

First, the second controller 224 controls the overall operation of the mobile communication terminal module 220. For example, it performs processing and control for voice call and data communication.

The radio processor 222 transmits and receives a radio signal of data input / output through an antenna. For example, in the case of transmission, after performing channel coding and spreading of data to be transmitted, RF processing is performed to transmit the data. In case of reception, the received RF signal is converted into a baseband signal. The baseband signal is de-spreaded and channel decoded to restore data.

The second key input unit 226 has a plurality of keys for selecting a corresponding command that the portable communication module 22 can perform, and transmits data corresponding to the input key to the second control unit 224. Accordingly, the second control unit 224 controls the operation of the portable communication terminal module 220 according to the data transmitted from the second key input unit 226.

The second storage unit 228 is composed of random access memory (RAM), read only memory (ROM), flash ROM (Flash ROM), and performs the operation of the portable communication terminal module 220. A plurality of programs are stored, and data added or changed in the portable communication terminal module 220 is stored.

Although not shown, the voice processing unit 229 performs a function of performing input / output processing of a voice signal through a microphone and a speaker. For example, the digital data provided from the second controller 224 is converted into an analog voice signal and output to the outside through the speaker, and the voice signal applied from the microphone is converted into digital data and the second controller ( 224).

3 illustrates battery discharge characteristics of a composite terminal according to an exemplary embodiment of the present invention. Hereinafter, the discharge characteristic curve shows a case where the operating temperature of the battery is within an appropriate range and the current flowing to the load is constant. In general, when the operating temperature of the battery is higher or lower than the appropriate temperature, the discharge characteristic curve is rapidly changed.

The horizontal axis of the graph shown in FIG. 3 represents the usable time of the battery, and the vertical axis represents the power of the battery. In addition, VH denotes a maximum usable voltage of the battery, VL denotes a minimum usable voltage of the battery, Va denotes a voltage at which the battery discharge characteristic is stabilized, and Vb denotes a voltage at which the battery discharge characteristic drops.

As shown in the graph of FIG. 3, the voltage of the battery rapidly decreases from the voltage VH to Va (section D1) (eg, 4.2 to 3.9V), thereby shortening the service time of the battery. Since the voltage is stabilized from the voltage Va to Vb (D2 section) (for example, 3.8 to 3.6V), the battery life is maintained for a certain time. In addition, according to the present invention, by adjusting the slope of the discharge curve from the voltage Vb, the voltage decreases again, the use time of the battery from the Vb to VL (section D3) (for example, 3.6 to 2.0V) increases. Indicates.

In other words, after the power of the portable communication terminal module 220 is turned off, that is, by gently adjusting the slope of the discharge curve of the battery at low voltage, the usage time of the personal information terminal module 210 is extended.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the battery discharge characteristic curve of the composite terminal including the portable communication terminal module and the personal information terminal module is modified to increase the use time of the personal information terminal module. In other words, after the power of the mobile communication terminal module is turned off, at the low voltage point where the voltage of the battery suddenly decreases, the slope of the conventional discharge curve is gently adjusted to increase the service time of the battery. There is an advantage that the use time is increased.

Claims (4)

A battery device in which the discharge characteristic of a multi-composite terminal having a plurality of modules is changed, Including a battery that gently adjusts the slope of the battery discharge curve in the low voltage section in which the voltage drops sharply, Device for increasing the use time of the module used in the low voltage section of the plurality of modules. The method of claim 1, The low voltage section is characterized in that the section after the power of the first module of the composite terminal is turned off. A battery device in which the discharge characteristics of a composite terminal including a portable communication module and a personal information module are changed. Including a battery in which the slope of the battery discharge curve of the low voltage section in which the voltage suddenly decreases is gently adjusted, Apparatus characterized in that the use time of the personal information module increases in the low voltage section. The method of claim 3, wherein The low voltage section is characterized in that the section after the power of the portable communication module is turned off.

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