KR20000040307A - Method for storing telephone directory of high capacity - Google Patents

Abstract

PURPOSE: A method for storing the telephone directory of a high capacity is provided to store the telephone directory of a big capacity in a portable phone. CONSTITUTION: If a user pushes the key corresponding to a telephone number input mode, a CPU displays a message that requests an address, a name and a telephone number (100,102). The CPU checks whether there is a spare space to store in a primary block (PRI_BLK) (110). The CPU stores the name and the telephone inputted in the address of the primary block (PRI_BLK) indicated by a blank pointer (BLANK_PTR) stored in an address 0 of an EEPROM (Electrically Erasable and Programmable ROM) (112). The CPU stores a flash address 3 of a second flash memory storing the name and the number in an address 2 of the EEPROM corresponding to the storing number inputted by the user (114).

Description

How to save large phone book

The present invention relates to a telecommunications system, and more particularly to a method for storing a large phone book in a portable terminal.

As portable terminals such as mobile phones are becoming more common these days, various functions for providing convenience to individuals have been added to the portable terminals. For example, a cell phone or the like may store not only its own phone number and name but also other people's phone numbers. The telephone number is stored in an electrically erasable and programmable ROM (EEPROM) having a structure as shown in FIG. Referring to the EEPROM of Fig. 2, the storage areas corresponding to the addresses ADDRESS 1 to N are provided with names NAME 1 to NAME N and telephone numbers TEL NUMBER 1 to N.

In the case of using the EEPROM having the structure as shown in FIG. 2, the space required to store one telephone number is about 30 bytes. For example, when storing 100 telephone numbers, 300 bytes of storage space are required.

In the case of a conventional mobile phone, when storing a phone number, the EEPROM shown in FIG. 1 can be recorded and read in bytes. However, since there is no large-capacity EEPROM and expensive, only about 100 to 200 phone numbers can be stored. Flash memory, which is relatively large and inexpensive compared to EEPROM, can be stored in byte units.However, when the stored contents are erased, they must be erased in block units rather than in units such as bytes. It is not suitable for the phone book processing that is not used. In the case of 1 megabyte (MB) flash memory consisting of 16 blocks, one block is composed of 64 kilobytes (KB) and corresponds to a storage space capable of storing 2000 phone numbers.

Accordingly, an object of the present invention is to provide a method for storing a large phone book in a portable terminal.

Another object of the present invention is to provide a method for storing a large phone book in a portable terminal using two memories having different characteristics.

According to the above object, the present invention is a method for storing a large phone book in a portable terminal, the process of storing the phone book in a flash memory based on the user's telephone number information and storage address input, and the storage And storing the phone number information storage location of the flash memory in a storage area of the erasable and recordable memory corresponding to the address.

1 is a hardware block diagram of a portable terminal applied to an embodiment of the present invention;

2 is a structure diagram of a telephone number stored in an EEPROM of a portable terminal according to the prior art;

3 is an EEPROM data structure diagram according to an embodiment of the present invention;

4 is a flash memory data structure diagram according to an embodiment of the present invention;

5 is a control flow diagram for storing a large phone book in accordance with an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same elements in the figures are denoted by the same numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

Data of the same type as the phone number is continuously added but not changed and deleted. Therefore, even if the flash memory has the disadvantage that it can be deleted only in block units, it can be used to store a large number of phone books. Will be available. Therefore, in the embodiment of the present invention, a large number of telephone numbers are stored in a method of storing an actual telephone book in a flash memory and only storing a flash memory storage location in an EEPROM.

1 is a block diagram illustrating a hardware block of a portable terminal according to an exemplary embodiment of the present invention, including a CPU 1, an EEPROM 2, a first and a second flash memory 3, 6, a liquid crystal display (LCD) 4, and the like. And a transceiver 5. EEPROM 2 and first flash memory 3 are used for data access of CPU 1. The LCD 4, which is a user display device, and the transceiver 5 for actually transmitting and receiving signals through a wireless device operate under the control of the CPU 1. When two or more blocks of storage space remain even after storing a program coding an operation of the portable terminal, the first flash memory 3 may be used as a large-capacity phonebook storage space according to an embodiment of the present invention. However, if there is no free space in the first flash memory 3, according to the embodiment of the present invention, the second flash memory 6 connected to the I / O port of the CPU 1 is used as the large-capacity phonebook storage space according to the embodiment of the present invention.

As described above, in the embodiment of the present invention, the actual phone book (phone number and name) is stored in the first flash memory 3 or the second flash memory 6, and the storage location of the first flash memory 3 or the flash memory 6 is stored in the EEPROM 2. Store a large number of phone numbers to save only.

In the following, the operation of an embodiment of the present invention will be described assuming that the second flash memory 6 of FIG. 1 is a memory for storing a large phone book.

3 illustrates a data structure of EEPROM 2 according to an embodiment of the present invention, and FIG. 4 illustrates a data structure of a second flash memory 6 according to an embodiment of the present invention. First, referring to EEPROM 2 of FIG. 3, there are storage addresses ADDRESS 0 to ADDRESS N and an EEPROM telephone number index for storing addresses Flash Addresses 1 to N of a flash memory is provided. Referring to the data structure of the second flash memory 6 of FIG. 4, the second flash memory 6 is composed of a plurality of primary blocks PRI_BLKs and a backup block BAC_BLKs, and each block is a flash memory. And a storage area for storing the addresses of Flash addresses 1 to N, corresponding names NAME 1 to N, and telephone numbers TEL NUMBER 1 to N.

5 shows a control flow diagram for storing a large phone book in accordance with an embodiment of the present invention.

1 and 3 to 5 will be described in detail the operation of storing a large-capacity phone book according to an embodiment of the present invention.

When the user presses a key corresponding to the telephone number input mode, the CPU 1 determines that the telephone number input mode is entered in step 100 of FIG. 5, and proceeds to step 102. In step 102 of FIG. 5, the CPU 1 displays a message for inputting a storage address, a name, and a phone number on the LCD 4. Accordingly, when the user inputs a store address (eg, 02), a name (eg, Kim Amu), a phone number (eg, 300-3000) and presses a storage key, the CPU 1 recognizes it in steps 104 and 106 of FIG. 5. Proceed to step 110. In step 110, the controller 1 checks whether there is free storage space in the primary block PRI_BLK of the second flash memory 6. The storage free space is checked based on the location indicated by the blank pointer BLANK_PTR of EEPROM 2 and the memory capacity of flash memory 6.

If there is free space, the CPU 1 proceeds to step 112, where the name entered in the address in the primary block PRI_BLK of FIG. 4 indicated by the blank pointer BLANK_PTR stored in the address ADDRESS 0 of the EEPROM 2 of FIG. ) And the telephone number 300-3000. In an example of the present invention is shown in Figure 4 stored in the flash address 3 in the prime block PRI_BLK the name Kim and the phone number 300-3000. In this case, it means that the name and phone number are already stored in Flash Address 1,2 in the PRI_BLK.

After storing the name and the phone number in step 112, the CPU 1 proceeds to step 114 in which the second flash memory 6 stores the name and the phone number in the address ADDRESS 2 of the EEPROM 2 corresponding to the storage number 02 entered by the user. Save address, that is, Flash Address 3. Referring to the EEPROM telephone directory index of ADDRESS 2 of FIG. 3, Primary Flash Address 3, which is a position value where the current name and telephone number are stored in the prime block PRI_BLK, is stored. CPU 1 then updates by changing the blank pointer BLANK_PTR value in EEPROM 2. In other words, it is updated to a value increased by the size of the data (name and phone number) stored in step 112.

In the above manner, whenever the telephone number and name are modified or added, the telephone numbers and names are sequentially stored in the empty space of the PRI_BLK of the primary block of the second flash memory. The address of the modified and added second flash memory 6 is stored in the corresponding address of EEPROM 2, and the blank pointer BLANK_PTR value is continuously updated.

On the other hand, if there is no free space in the primary block PRI_BLK of the flash memory 6 in step 110 of FIG. 5, the CPU 1 proceeds to step 118 to display a message to LCD 4 to clean up the phone book. For example, display the phone book? Then proceed to step 120. If the user selects a key corresponding to NO, the CPU 1 proceeds from step 120 to step 130 to display a message to LCD 4 to clean up the phone book again and terminate the process. For example, the message "Restore the phone book and save it again" is displayed on the LCD 4 and the process ends.

If the user selects a key corresponding to YES, the CPU 1 proceeds from step 120 to step 122. In step 122, the phone book (phone number and name) of the primary block PRI_BLK of the second flash memory 6 indicated by the EEPROM phone book index is copied to the backup block BAC_BLK, and the EEPROM phone book index is the backup block of the copied phone book. Update to BAC_BLK storage location value. In step 124, the primary block PRI_BLK of the second flash memory 6 is deleted. Thereafter, in step 126, the phone book of the backup block BAC_BLK is copied to the prime block PRI_BLK, and the EEPROM phone book index is updated with the storage location value of the prime block PRI_BLK of the copied phone book. Thereafter, in step 128, the contents of the backup block BAC_BLK are deleted and the process ends.

In the above description of the present invention, specific embodiments have been described, but various modifications can be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be defined by the equivalent of claims and claims.

As described above, the present invention stores a large phone number in a later terminal by storing a real phone book (phone number and name) in a flash memory and storing only a storage location of a flash memory in an EEPROM.

Claims (7)

In the method for storing a large phone book in a portable terminal, Storing the phone book in a flash memory based on a user's phone number information and a storage address input; And storing the phone number information storage location of the flash memory in a storage area of the erasable and recordable memory corresponding to the storage address. The method of claim 1, wherein the phone number information comprises a phone number and a name. 2. The method of claim 1, wherein the flash memory is a memory connected to an input / output port and used for storing a large telephone number. The method of claim 1, wherein the flash memory is a memory used for storing a program coded for an operation of a portable terminal. A method for storing a large phone book in a portable terminal having an erasable and recordable memory and a flash memory, the method comprising: Determining whether there is a free space in the first block area of the flash memory based on telephone number information and storage address input of the user in the telephone number input mode; The phone book is stored in an empty space in the first block area of the flash memory according to the free space in the first block area, and the flash memory is stored in the storage area of the erasable and recordable memory corresponding to the storage address. Storing the phone number information storage location; And storing a message for organizing the phone book as there is no free space in the first block area. The method of claim 5, Copying the telephone number information of the telephone number information storage location of the flash memory indicated by the erasable and recordable memory to the second block area of the flash memory as the user selects the phonebook arrangement, and stores the erased and recordable memory. Updating location information with phone number information storage location information of a flash memory corresponding to the copied second block area; Deleting contents of the first block area of the flash memory; Copy phone number information of the second block area of the flash memory back to the first block area, and store location information of the erasable and recordable memory, and telephone number of the flash memory corresponding to the copied first block area. Updating the information storage location information; And storing the contents of the second block area of the flash memory. 7. The method of claim 6, further comprising displaying a message for prompting the user to input phone number information after the phone book is cleared as the user deselects the phone book cleanup.