JP2944151B2 - Wireless selective call receiver with display function - Google Patents

Abstract

PURPOSE:To read an English sentence at a glance on a screen by displaying a message by means of N-dot matrix picture elements resulting from 1/4 division of 2N-dot matrix picture elements when it is discriminated that the message consists only of English letters and Arabic figures. CONSTITUTION:A message signal is converted into a message by a decoder 3 and stored in a RAM 5 and an MCU 6 executes a program software written in a ROM 4 so as to display the message on an LCD 12. In this case, when it is discriminated that the message consists only of English letters and Arabic figures, the message is displayed on the display screen of the LCD 12 by 8-dot matrix fonts. On the other hand, when it is discriminated that the message consists of English letters and Arabic figures and also other characters, the message is displayed by using 16-dot matrix fonts. Then in the case of the display for an English letters or an English message mixed with Arabic figures, the message is displayed while offering ease of read and the display efficiency is improved.

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to a radio selective call receiver with a display function, and more particularly to a display capable of displaying messages in kanji display, hiragana display, graphic display, English display, Arabic numeral display, and the like. The present invention relates to a radio call receiver with a function.

[Conventional technology]

In a conventional wireless selective call receiver with a display function,
Kanji, Hiragana, Graphic, English (Alphabet)
To display messages such as and Arabic numerals, each character or each numeral is displayed in a matrix of 16 dots on one side.

[Problems to be solved by the invention]

In the above-described conventional radio selective call receiver with a display function, if a message is displayed in a matrix of 16 dots on one side, the number of characters that can be displayed at one time is extremely small. Therefore, particularly when displaying an English-language message dedicated to English or Arabic numerals, there are drawbacks in that it is very difficult to read and the display efficiency is poor.

[Means for solving the problem]

A selective paging receiver with a display function according to the present invention receives a message signal subsequent to a selective paging signal, and stores the message signal in a selective paging receiver with a display function for displaying the received message. Means for detecting whether or not the characters of the stored message are composed of only Arabic numerals and alphabets. If the result of the detection is that of only Arabic numerals and alphabets, each character of the message is set to N.
Means for displaying in a × N (N is a positive integer) dot matrix, and in the case of no, displaying each character of the message in a 2N × 2N dot matrix. The determination as to whether or not the message signal is composed of only one is made by determining the code of each character of the message signal. It is preferable to have a means for displaying a message displayed in an N × N dot matrix by a 2N × 2N dot matrix by selecting an external switch.

〔Example〕

Next, an embodiment of the present invention will be described with reference to FIG. 1 and FIG.

FIG. 1 is a block diagram showing a radio selective call receiver with a display function according to an embodiment of the present invention. FIG. 2 is an operation flowchart of the message display switching function. FIGS. 3A and 3B are diagrams showing an example of switching dot matrix display. 4 (a), (b)
FIG. 4 is a diagram showing a display example of a character string having a 16-dot and 8-dot matrix on one side.

The radio selective call receiver with a display function includes an antenna 1 between a transmitting station and a receiving station, and an FSK (Frequency Shift Kein).
g) a receiving unit 2, a decoder (DECODER) 3, for receiving and demodulating the signal (message information) modulated by
P-ROM (Programmable Read) prepared for the program
Only Memory) 4 and prepared for storing received messages
RAM (Rondom Acces Memory) 5 and MCU (Micro Control 11e)
r Unit) 6, an LED (Light Emitting Diode) 8, which is used as first reception information notifying means,
A speaker 9 used as second reception information notifying means,
RAM prepared for LCD (Liquid Crystal Dispay) display
LCD controller / driver 1 consisting of 10 and LCD12
1, and a copy means (not shown) for copying the screen displayed on the LCD 12. Further, the display switching means of the dot matrix in the present embodiment is a
-Implemented by the program software written in ROM4.

The antenna 1 of the radio selective call receiver with a display function shown in FIG. 1 receives a message signal following a selective call signal notifying that it has been called. The received message signal is input to the decoder 3 via the receiving unit 2 and is decoded. Here, the message signal converted into a message is input to the control unit 7 and stored in the RAM 5. The MCU 6 operates by designating a flag extracted from the ROM 4 for program software.

The operation of the MCU 6 is controlled according to the flowchart shown in FIG.

First, the reception of a message signal is started by turning on the power of the radio selective calling receiver (step 1). The message signal is converted into a message by the decoder 3 and stored in the RAM 5 (step 2). At this time, all the messages stored in the RAM 5 can be represented by codes. By referring to the code, it is possible to determine whether or not the message is composed of only two types, an alphabet and Arabic numerals. This determination is made (step 3), and if it is determined that the message is only two kinds of alphabets and Arabic numerals, the message is displayed on the display screen of the LCD 12 in a matrix of 8 dots on one side (step 4). When a screen copy instruction is given by an external switch of the radio selective call receiver (step 5), the display is automatically switched to a 16-dot matrix display on one side (step 8), and the message is printed out by the copy means. (Step 9). When the copying of the message is completed, the operation returns to (Step 4).
In (Step 4), each character on the display screen of the LCD 12 can be converted from an 8-dot matrix display to a 16-dot matrix display on each side of the display screen of the LCD 12 according to an instruction from an external switch (Step 6) (Step 7). Further, the number of display dots can be switched alternately (from step 6 to step 4).

On the other hand, if it is determined in (Step 3) that a message other than the two types of alphabets and Arabic numerals is included, the message is displayed on the display screen of the LCD 12 in a matrix of 16 dots on one side (Step 3). 1
0). Then, when a screen copy instruction is given by an external switch (step 11), the message is printed out by the copy means (step 12). When the copying of the message is completed, the operation returns to (Step 10).

As described above, the MCU 6 displays the message on the screen of the LCD 12 by executing the program software written in the ROM 4, and copies the screen when instructed by an external switch.

FIG. 3 (a) shows a display diagram of alphabets of 10 columns and 4 rows at the time of matrix display of 16 dots on one side as in the prior art, and FIG. A display diagram of alphabets and Arabic numerals of 20 columns and 8 rows at the time of matrix display of 8 dots on one side is shown. In this manner, if the image is displayed in a matrix of 8 dots on one side, four times the number of messages can be read at a time than in a matrix of 16 dots on one side.

FIG. 4 (a) shows a case where a character is displayed with pixels of a 16-dot matrix on one side, and FIG. 4 (b) shows a case where a pixel of a 16-dot matrix on one side is divided into four to convert a character into an 8-dot matrix This shows a case where the information is displayed, and corresponds to the display of (Step 10) and (Step 4), respectively.

In the above description, a message of 16 characters on one side is displayed on the LCD 12 for messages such as kanji and graphics, and a message of 8 dots on one side is displayed for messages of alphabet and Arabic numerals. I have. Generally speaking, for the former, 2N x 2N (N is a positive integer) dot matrix display for one character on the LCD, and for the latter, 2N x 2N dot matrix pixels on the LCD This means that the display is performed in an N × N dot matrix divided into four parts.

(Effects of the Invention) As described above, the present invention determines whether a message is limited to English text and Arabic numerals by the code of the message signal, and that the message is limited to English text and Arabic numerals. If it is determined, a means for displaying pixels of the 2N × 2N dot matrix by N × N dot matrix pixels divided into four parts is provided. It has the effect of being able to double the display. Therefore, the English text can be read at a glance, and it is easy to transmit information correctly.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a radio paging selection receiver with a display function according to an embodiment of the present invention, FIG. 2 is an operation flowchart of a message display switching function, and FIGS.
FIG. 4B is a diagram showing an example of dot matrix display switching, and FIGS. 4A and 4B are diagrams showing a display example of a 16-dot and 8-dot matrix character string on one side. 1. Antenna, 2. Receiver, 3. Decoder (DECODER),
4 ROM (for program), 5 RAM, 6 MCU, 7 controller, 8 LED, 9 speaker, 10 RAM (for display), 11
... LCD controller / driver, 12 ... LCD.

Claims (2)

(57) [Claims] 1. A radio selective call receiver with a display function for receiving a message signal subsequent to a selective call signal and displaying the received message, means for storing the message signal, and a character of the stored message. Means for detecting whether or not is composed only of Arabic numerals and alphabets by judging the code of each character of the message signal; and, as a result of the detection, in the case of only Arabic numerals and alphabets, each character of the message Means for displaying an N × N (N is a positive integer) dot matrix, and in the case of no, displaying each character of the message in a 2N × 2N dot matrix. Selective call receiver. 2. The radio selective call reception with display function according to claim 1, further comprising means for displaying a message displayed in an N × N dot matrix by a 2N × 2N dot matrix by selecting an external switch. Machine.