KR0134996B1 - Paging receiver with dot matrix type lcd device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pager receiver in which a display unit is formed of a dot matrix LCD so that various amounts of information can be displayed in response to various needs of a user. The RF receiver 1, the decoder 2 for decoding the FSK radio call signal modulated by the POCSAG code system received from the RF receiver 1, the CPU unit 3 for controlling the entire pager receiver, the pager receiver Key pad section 4 composed of switches for selecting various functions, graphic data ROM section 5 for storing various types of graphic information data, and wireless call signal data from decoder section 2 To convert the information data into a data signal that can be displayed on the LCD display (7), store it in the display ROM, and drive the display on the LCD display (7). Consists of a LCD driver 6, the radio call information and a variety of graphic processing the dot matrix type liquid crystal display to display various image data device (LCD) LCD display unit 7 as a signal including the data.

Description

Phaser Receiver with Dot Matrix LCD

1 is a block diagram of a pager receiver of the present invention;

2 is a flowchart for explaining the operation of the pager receiver of the present invention;

3 is a graphic diagram showing an example displayed on the display unit of the pager receiver of the present invention.

＊ Explanation of symbols for main parts of drawing

1: RF receiver 2: decoder

3: CPU section 4: Key pad section

5: Graphic data ROM unit 6: LCD driver,

7: LCD display

The present invention relates to a pager receiver, and more particularly, to a pager receiver in which a display portion of the receiver is formed of a dot matrix LCD.

Since a conventional pager receiver mainly uses a segment type LCD as a display device, the pager receiver has been limited in that it can be displayed only in a number-oriented display form when displaying radio-called information.

In addition, there is a limitation in the conventional segment-type LCD display device in effectively displaying the functions of the pager receiver, which is gradually complicated and diversified according to the development of the wireless paging system.

SUMMARY OF THE INVENTION In view of the foregoing, the present invention provides a pager receiver having a dot matrix LCD display device capable of displaying not only alphanumeric characters but also Korean information, and additionally displaying graphics processed images. The purpose of the present invention is to improve the display function of the information received by the pager receiver, which has been complicated and diversified in response to the requirements of.

In order to achieve this object, a pager receiver according to the present invention includes an antenna for receiving a radio call signal, an RF receiving circuit for converting a call signal received by the antenna into an FSK audio frequency band signal, and a decoder for decoding the converted FSK signal. A pager receiver with a circuit, a CPU for controlling the entire pager receiver, a keypad portion composed of switches for selecting various functions of the pager receiver, and a display device for visually displaying various information including decoded radio call data. In the present invention, various types of information data including radio call data from a decoder circuit are received and provided to the LCD display unit through the display RAM, and the wireless call data through the LCD driving circuit and the LCD driving circuit for controlling the driving of the LCD display unit. Image information processed in graphic Consists of an LCD display in a dot-matrix type LCD to display, characterized by comprising hayeoseo also include graphics data ROM for storing various data corresponding to a different information signal, including radio paging received signals.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a pager receiver according to the present invention, which is modulated by a RF receiver 1 for converting a radio call signal received through an antenna into an FSK audio frequency band signal and a POCSAG code system received from the RF receiver 1 A decoder unit 2 for decoding the FSK radio call signal, a CPU unit 3 for controlling the entire pager receiver, a keypad unit 4 composed of switches for selecting various functions of the pager receiver, various types Graphic data ROM section 5 for storing graphic information data and various information data including radio call signal data from the decoder section 2 are converted into data signals that can be displayed on the LCD display section 7 and stored in the display ROM. And a variety of information and graphics processed image data including an LCD driver 6 for displaying and driving the LCD display 7 and wireless call signal data. It can be composed of a dot matrix type liquid crystal display device (LCD) LCD display (7) to be so.

Referring to the operation of the pager receiver according to the present invention configured as described above are as follows.

First, when a radio call signal is received by the RF receiver 1 through an antenna, the RF receiver 1 converts only the information signal excluding the high frequency component from the received radio call signal into an FSK audio frequency band signal to the decoder unit 2. Is sent.

The decoder unit 2 compares the input radio call signal with the unique number of the pager receiver, and if it is the same, decodes the radio call signal and outputs call information to the CPU unit 3.

The CPU unit 3 receives the call information data from the decoder unit 2, determines the content of the information data, and reads out the graphic data corresponding thereto from the graphic data ROM unit 5.

At this time, the type of information data to be read may be, for example, graphic data, Korean font data, English font data, regularly regulated regular sentence data, and the like.

Under the control of the CPU unit 3, the graphic data including the call information data read out from the graphic data ROM unit 5 is output to the LCD driver 6.

In addition to the call information, the CPU unit 3 determines the input signal from the keypad unit 4 upon receiving the input signal selected from the keypad unit 4 to display the received information and set various functions of the pager receiver. Corresponding graphic data is read out from the graphic data ROM section 5 and output to the LCD driver 6.

The LCD driver 6 receives various graphic data including radio call information read out from the graphic data ROM unit 5 under the control of the CPU 3, and stores it in the built-in display RAM. The LCD display 7 is converted into a signal capable of driving and output to the LCD display 7 to display various visual information including call information through the LCD display 7.

Referring to FIGS. 2 and 3, a process of expressing various graphic information by the pager receiver according to the present invention configured and operated as described above is illustrated in FIG. 4 when the pager is first turned on. The CPU unit 3 accesses and reads the address of the ROM unit 5 corresponding to the generated HELLO display graphic data and outputs it to the display RAM of the LCD drive unit 6 to display the HELLO display graphic data on the LCD display unit 7. Sprayed and displayed.

On the other hand, when the page signal is received by the pager receiver, the decoder 2 compares whether the ID code is correct. If the ID code is matched, the data following the ID code is read in order, and the type of data read (in English data, Hangul data, graphic data, or regular sentence data, etc.), the CPU unit 3 accesses and reads the address of the ROM unit 5 in which the corresponding type of data is stored, and the LCD display unit 7 according to the above-described process. Is displayed.

If there is no key input from the keypad section 4, the CPU section 3 compares whether the current date is a specific date (Christmas, Valentine's Day, White Day, Birthday), and if it matches the stored specific date, For example, the graphic data shown in FIG. 4 is read from the ROM unit 5 and displayed on the LCD display unit 7 at a predetermined period at a predetermined time.

In addition, when a specific time is reached, graphic data such as morning, evening, and tea time as shown in FIG. 4 may be displayed on the LCD display 7.

Finally, when the pager receiver is turned off by checking the OFF state of the pager receiver, the BYE display graphic data shown in FIG. 4 is displayed on the LCD display 7.

As described above, the pager receiver according to the present invention is configured as a dot matrix LCD display device instead of a segment type LCD display device, and therefore, a lot of data of various kinds that cannot be represented by a conventional pager receiver can be obtained. It is an invention that can be displayed through the display screen all at once to greatly improve the pager information display expression function in response to the needs of the user.

Claims (1)

An antenna for receiving a radio call signal, an RF receiver circuit unit 1 for converting a call signal received by the antenna into an FSK audio frequency band signal, a decoder circuit unit 2 for decoding the converted FSK signal, and controlling the entire pager receiver. A CPU unit 3, a keypad unit 4 composed of switches for selecting various functions of the pager receiver, and a display device 6; 7 for visually displaying various information including decoded radio call data. In the equipped pager receiver, an LCD driving circuit section (6) for receiving various information data including radio call data from the decoder circuit (2), providing it to the LCD display section through the display RAM, and controlling the driving of the LCD display section. Dot display for displaying graphic information processed in various forms, as well as wireless call data, through the LCD driver circuit unit 6 It consists of an LCD display (7) of a matrix type LCD, characterized in that it also comprises a graphics data ROM section (5) for storing various graphic data corresponding to various information signals including a radio call received signal. Pager receiver with dot matrix LCD.