KR930001198B1 - Search method of empty memory in car-phone and mobile phone - Google Patents

Abstract

A method is for automatically searching the empty memory address to record the new telephone number in the car or portable telephone. The method comprises the steps of: searching the memory address to store the telephone number; judging that said memory address is empty or not; increasing or decreasing the memory address if the memory address is not empty; and storing the telephone number in case that the selected memory address is empty.

Description

How to automatically search the empty memory address of car phone and mobile phone

1 is a block diagram of an automobile telephone and a portable telephone to which the present invention is applied.

2 is a flowchart illustrating a method of automatically searching for an empty memory address of an automobile telephone according to the present invention.

* Explanation of symbols for main parts of the drawings

1: Main CPU 2: EEPROM

3: RAM 4: LCD driver and CPU

5: LCD 6: Keypad

The present invention relates to a method for automatically searching for an empty memory address in an automobile telephone and a portable telephone, which automatically searches for an empty memory address when a new telephone number is to be stored in a memory address using a speed dial function.

The speed dial function used in a car phone or a regular phone stores a long phone number as two or one digits in the memory address, and when the user wants to make a call to the memorized phone number, the phone number transmission can be performed by pressing the shortened memory address. It is possible.

However, car phones usually use dozens of two-digit memory addresses. Modern car phones, for example, have 49 memory addresses. So when you want to remember a new phone number in a memory address, you have to find an empty memory address and remember the phone number there. However, if a new phone number is stored in a memory address where a phone number is stored without finding and storing an empty memory address, the information in the address is deleted.

상의 단축 메모리 기능에 의해 송신하기 위해 정해진 버튼(RCL)과 검색하고자 하는 2자리의 메모리 번지를 눌러 어떤 정보도 갖고 있지 않는 메모리 번지가 나올때까지 메모리 번지의 값을 바꾸어서 반복하여 찾아 보아야 한다. 그런데 ″01″번지 부터 차례로 전화번호를 기억시켰다 하더라도 몇 번지 까지 사용했는지를 찾아 내는 것도 번거롭지만 순서대로 메모리번지를 사용하지 않았을 경우에 새로운 전화번호를 기억시키기 위해 빈 메모리 번지를 찾아내는 것은 더욱번거로운 일이다.The most commonly used phone number is stored in the memory address. In general, the car phone has a memory address that can store the phone number from ″ 01 ″ to ″ 49 ″. To retrieve the memory address to remember the new phone number, press the hand of the car phone.

In order to transmit by the short memory function on the screen, you need to search repeatedly by changing the value of the memory address until the memory address which does not have any information is pressed by pressing the button (RCL) and the two-digit memory address to be searched. However, it is cumbersome to find out how many numbers you have used, even if you have memorized the phone numbers from 01 to 01, but it is more cumbersome to find an empty memory address to store a new phone number if you do not use memory addresses in order. to be.

An object of the present invention is to provide a method for automatically searching for an empty memory address in an automobile telephone and a portable telephone, which automatically searches continuously and searches for a currently empty memory address among a given total memory address. There is this.

In order to achieve the above object, the present invention provides a main CPU, an EEPROM connected to the main CPU, a RAM connected to the main CPU, an LCD driver connected to the main CPU and an LCD connected to the CPU, an LCD connected to the LCD driver and the CPU, A first method for selecting a memory address for storing a telephone number by entering an empty memory address search mode, comprising: a keypad configured to include an LCD driver and a keypad connected to a CPU; A second step of searching whether the address is an address, a third step of selecting and processing an upper and lower address based on the selected memory address if the selected memory address is not an empty memory address, and a telephone number if the selected memory address is an empty memory address And a fourth step of storing.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

FIG. 1 is a configuration diagram of an automobile telephone and a portable telephone to which the present invention is applied, in which 1 represents a main CPU, 2 represents an EEPROM, 3 represents a RAM, 4 represents an LCD driver and a CPU, 5 represents an LCD, and 6 represents a keypad.

The automobile telephone and portable telephone to which the present invention is applied connect the EEPROM 2 and the RAM 3, the LCD driver and the CPU 4 to the main CPU 1 as shown in FIG. It was configured by connecting the LCD (5) and the keypad (6) to the CPU (4). To use the auto search function of the empty memory address, select the function with the key on the keypad (6), and when the function selection data is transferred to the main CPU (1) through the LCD driver and the CPU (4), the main CPU (1) The EEPROM (2) in the program is executed to display the search ready on the LCD (5). When the user selects the function selection in the order of the address or the lower address by using the keys of the keypad, and selects any memory address to search, the main CPU 1 searches the RAM 3 to search the upper address or the lower address. In order to display the empty memory address on the LCD 5 in turn. Therefore, the telephone number can be stored in the empty memory address displayed on the LCD 5.

2 is a flowchart illustrating a method of automatically searching for an empty memory address of an automobile telephone and a portable telephone according to the present invention.

상의 정해진 버튼을 눌러 빈 메모리 번지를 검색하는 모드로 들어가서 메모리 번지를 선택한다(100,110,120). 상기 선택된 메모리 번지가 정보가 기억되어 있지 않은 비어 있는 상태인지를 검색하여 상기 선택된 메모리 번지가 빈 메모리 번지이면 새로운 전화번호를 기억시키고 상기 선택된 메모리 번지가 정보가 기억되어 있는 상태이면 상기 선택된 메모리 번지를 중심으로 상위 번지를 검색할 것인지를 판단한다(130,140,150). 상기 선택된 메모리 번지를 중심으로 상위 번지를 검색한다면 메모리 번지가 높아지는 순서로 차례로 검색하여 나타나는 첫번째 비어 있는 메모리 번지로 부터 번지수가 높아지는 순서로 차례로 디스플레이하고 검색할 상위 번지의 메모리가 남아 있는지 검색하여 남아 있으며 검색을 계속하여 빈 메모리 번지를 번지수사 높아지는 순서로 디스플레이하는 동작을 반복하고 검색할 상위 번지의 메모리가 남아 있지 않으면 상기 빈 메모리 번지 검색모드로 넘어간다 (160,170,180).First of all, if you want to enter the main program used by car phones and portable phones to remember the new phone number,

Pressing a predetermined button on the screen enters the mode to search for an empty memory address to select the memory address (100, 110, 120). Search whether the selected memory address is an empty state in which no information is stored, and if the selected memory address is an empty memory address, store a new phone number, and if the selected memory address is in an information state, store the selected memory address. It is determined whether to search for the upper address as the center (130, 140, 150). If the upper address is searched based on the selected memory address, the memory address is searched in order of increasing order from the first empty memory address that appears to display in order of increasing address number. The search operation is repeated to display the empty memory addresses in the order of increasing address numbers, and if there is no memory of the upper address to be searched, the process proceeds to the empty memory address search mode (160, 170, 180).

In addition, if the lower address is searched based on the selected memory address, the memory address is searched in descending order in order from the first empty memory address that appears to display sequentially in descending order, and search whether there is any memory of the lower address to be searched. If the remaining memory address is searched for and remaining, the search is continued to display the empty memory addresses in the order of decreasing address number, and if there is no memory of the lower address to be searched, the process goes to the half memory address search mode (190, 200, 210).

This way, you can remember the new phone number in the empty memory address.

The present invention operating as described above has an effect that can be conveniently used because it automatically retrieves the empty memory address when the phone number is stored using the speed dial function in the automobile phone and the portable phone.

Claims (4)

Main CPU 1, EEPROM 2 connected to main CPU 1, RAM 3 connected to main CPU 1, LCD driver and CPU 4 connected to main CPU 1, LCD An automobile telephone and a portable telephone comprising a LCD 5 connected to a driver and a CPU 4, and a keypad 6 connected to the LCD driver and a CPU 4; A first step of selecting a memory address to store a phone number by entering a free memory address search mode, a second step of searching whether the selected memory address is an empty memory address, or the selected memory if the selected memory address is not an empty memory address; And a fourth step of selecting and processing top and bottom addresses based on the address, and a fourth step of storing a telephone number if the selected memory address is an empty memory address. The method of claim 1, wherein the third step comprises: a first step of selecting a memory address to search among upper and lower addresses centering on the selected memory address; a second step of processing when the selected memory address to be searched is an upper address; And a third step of processing when the selected memory address to be searched is the upper address. The method of claim 2, wherein the second step comprises: a first process of searching for a memory of the selected upper address, a second process of displaying a free memory address of the searched memory addresses through a display device, and the upper address to be searched for; And searching for whether the memory of the remaining memory is performed by the third process of repeating the first and second processes. 3. The method of claim 2, wherein the third step comprises: a first process of searching for a memory of the selected lower address, a second process of displaying an empty memory address of the searched memory addresses through a display device, and the upper address to be searched for; And searching by whether the memory of the remaining memory is performed by the third process of repeating the first and second processes.

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