JPH0260329A - Receiver for radio calling with display - Google Patents

Abstract

PURPOSE:To easily judge a message when it is a final page of those presently in display by providing a shift register, a displaying part, a scroll switch, plural code detectors, an FF and oscillator and the like in a title receiver used for a pocket bell and the like. CONSTITUTION:A shift register 2 stores character data to constitute a receiving message and a displaying part 3 displays the character data of a special storing area in the register 2. A scroll switch 4 shifts the character data stored in the register 2 in units of a page and code detectors 5 and 6 are provided at the prescribed part of the register 2, to detect a character data starting code and a character data completing code and output a starting detecting signal and a completing detecting signal. The FF7 is set or reset by the starting detecting signal and the completing detecting signal, and an oscillator 8, when the output data of the FF7 are the prescribed value and the shift action in the register 2 is completed, generates the buzzer sound. Thus, it can be easily judged whether or not the message presently displayed is the one succeeding to a next page.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a radio paging receiver with a display suitable for use in a pager or the like.

"Prior Art" A radio paging receiver with a display is used as a receiver for a pager or the like. When a message from a sender is received in this radio paging receiver with display, this message is immediately stored in a memory provided in the receiver. At the same time, the receiver's bell rings to notify the recipient that the message has been received. Then, the recipient can display the message stored in the memory on the display section and check the contents. Messages are displayed on this display section page by page.

Then, by pressing a scroll switch provided on the receiver, the recipient can display the character strings of the page next to the currently displayed page on the display.

"Problems to be Solved by the Invention" By the way, the above-mentioned conventional radio paging receiver with display has the following problems:
Even if the currently displayed message is the last page, there is no way to notify the recipient of this fact. For this reason, even when the final page is displayed, the recipient needs to continue pressing the scroll switch and confirm that nothing is displayed on the display to determine the end of the message.

This invention was made in view of the above-mentioned circumstances, and an object of the present invention is to provide a radio paging receiver with a display that allows you to easily know when the message currently being displayed is the last page. There is.

[Means for Solving the Problems] The present invention provides a radio paging receiver with a display having a function of displaying a message received by radio communication, comprising: a shift register for storing character data constituting the received message; a display unit that displays character data in a specific storage area in the shift register; a scroll switch that shifts the character data stored in the soft register page by page; and a code detector that detects a character data end code and outputs a start detection signal and an end detection signal; a flip-flop that is set or reset by the start detection signal and the end detection signal; and the output data of the flip-flop is set or reset. If the value
The present invention is characterized by comprising a sounding section that generates a buzzer sound when the shift operation in the shift register is completed.

According to the structure described in "Operation", if the message being displayed on the display section is the last page, a buzzer sound is generated from the sound generation section at the end of scrolling.

"Embodiment" Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a radio paging receiver with display according to an embodiment of the present invention. In this figure, 1 is the CPU (
(Central processing unit), which controls communications in this receiver and controls the display of received messages. Reference numeral 2 denotes a shift register for storing character data constituting a received message, and is made up of a plurality of character storage areas connected in cascade, each storing character data for one character. 3 is a display section that displays a 4-character string;
The character data stored in the character storage area is supplied, and the corresponding character is displayed. 4 is a scroll switch.

When this scroll switch is pressed, a not clock is supplied from the CPU to the shift register 2, and the character data in each character storage area in the shift register 2 is sequentially shifted to the adjacent character storage area according to this scroll switch. It has become. Note that this character data software is performed in units of I pages (4 characters). That is, when the scroll switch 4 is pressed once, four shift clocks are output from the CPUI, and each character data in the shift register 2 is shifted to the storage area four positions ahead.

5 and 6 are code detectors. Here, the sign detector 5
outputs a start detection signal when the character data in the first character storage area of the shift register 2 does not indicate the beginning of a message and is a 5TX (start of text) code;
The code detector 6 detects that the character data in the sixth character storage area of the shift register 2 is ETX (
Outputs an end detection signal if it is an end-of-text) code. 7 is a set/reset flip-flop, which is reset by the start detection signal and set by the end detection signal. It should be noted that this flip-flop 7 is configured such that, when setting and resetting are performed at the same time, priority is given to the resetting operation. 8 is an oscillator, which operates in oscillation in response to an oscillation control signal from the CPUI. 9 is an AND (logical product) gate, to which the Q output of the flip-flop 7 and the oscillation output of the oscillator 8 are supplied. 1
0 is a speaker, which emits a buzzer sound based on the output signal of the AND gate 9.

The operation of this radio paging receiver with display will be explained below.

When a message is received in the receiver, an STX code is added to the beginning of the message and an ETX code is added to the end of the message, and the resulting character data string is transferred to the shift register 2.

Here, these character data strings are input from the last character storage area of the shift register and are sequentially soft-transferred to the single character storage area. Then, the software operation ends when the first character data (S T X code) of the character data string reaches the first character storage area of the shift register.

Then, when the STX code reaches the first character storage area of the shift register 2, a start detection signal is output from the code detector 5, and the flip-flop 7 is reset.

Figure 1 shows the 8-character message “ABCDEF G
As an example, the data storage state of the shift register 2 is shown when the shift register 2 is received at the end of the shift operation.Here, the first character storage area of the shift register is
The ETX code is stored in the TX code and 10th character storage area, and the display unit 3 displays the 2nd to 5th characters of the shift register 2.
The character data stored in the character storage area is supplied, and the character string "ABCD" is displayed. When the shift clock supply to the shift register 7 is finished, an oscillation control signal is supplied from the CPU to the oscillator 8, and the oscillator 8
operates in oscillation. However, at this time, flip-flop 7
Since is in the reset state, this oscillation output is output from AND gate 9.
The buzzer sound is not emitted from the speaker 10.

The recipient determines that there is a message following the currently displayed message because the buzzer is not emitted. Then, the user presses the scroll switch 4 to check the subsequent message. The operation of this scroll switch 4 is CP
The shift clock is detected by the UI, and the shift clock is supplied from the Cl) U l to the shift register 2. As a result, each character data in the shift register 2 is shifted to the character storage area four positions ahead. As a result, the character string “EF” appears on the display unit 3.
GI]" is displayed. Then, this [1, jJ,
The 6th character storage area of shift register 2 contains E i”
Since there is a code, the code detector 6 detects this and outputs an end detection signal. As a result, flip-flop 7 is set. When the shift operation of the shift register 2 is completed, an oscillation control signal is supplied from the CPU 1 to the oscillator 8, and the oscillator 8 operates in oscillation for a certain period of time. At this time, since the flip-flop 7 is in the set state, the oscillation outputs of oscillations 2 and 8 are supplied to the speaker 10 via the AND gate 9, and a buzzer sound is generated. Thereby, the recipient knows that this is the last page of the message currently being displayed.

Note that if the number of characters in the message is four or less, the ETX code passes through the sixth character storage area of the shift register 2 at the time of first display. Therefore, the start detection signal and the end detection signal are simultaneously output from the code detector 5.6. And in this case, flip-flop 7 is reset)
- Since it has priority, it is reset and the Q output becomes "0", and no buzzer sound is generated after the shift operation is completed.

"Effects of the Invention" As explained above, according to the present invention, a shift register for storing character data constituting a received message;
a display section that displays character data in a specific storage area in the shift register; a scroll switch that shifts the character data stored in the soft register page by page; and a character data start code provided in a predetermined part of the soft register. a code detector that detects a character data end code and outputs a start detection signal and an end detection signal; a flip-flop that is set or reset by the start detection signal and the end detection signal; In the case of a value, the present invention is provided with a sound generating section that generates a buzzer sound when the shift operation in the shift register is completed, so that it is possible to easily determine whether the message currently being displayed continues on the next page or not. It becomes possible.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a radio paging receiver with display according to an embodiment of the present invention. 2...Shift register, 3...Display section, 4
...Scroll switch, 5.6... Sign stripping detector, 7. Flip-flop, 8... Oscillator, IO
...Speaker.

Claims (1)

[Scope of Claims] A radio paging receiver with a display having a function of displaying messages received by radio communication, comprising: a shift register for storing character data constituting the received message; and a specific storage area in the shift register. a display unit that displays character data; a scroll switch that shifts the character data stored in the shift register page by page; and a scroll switch provided in a predetermined part of the shift register to detect a character data start code and a character data end code. and a code detector that outputs a start detection signal and an end detection signal, and a flip-flop that is set or reset by the start detection signal and end detection signal.When the output data of the flip-flop is a predetermined value, What is claimed is: 1. A wireless paging receiver with a display, comprising: a sounding section that generates a buzzer sound when a shift operation is completed.