JPS6042948A - Individual selective call receiver with display - Google Patents

Abstract

PURPOSE:To make the reading of content of an information signal displayed on a display device easy and to make the understnading of the content easy by handling an information signal not in character unit but in word unit and displaying information which is yet not displayed from the head of a display device after the information displayed already is erased, when all of words to be displayed on one display pattern of the display device are not displayed completely. CONSTITUTION:When a message ''PLEASE GO TO 19TH HOLE AT 3 PM.'' is stored in ''d1'' of a data memory 33 in the ASC11 code as a display example of an information signal, since a word ''19TH'' is not completely displayed on the display device at the 1st display, the message part of ''PLEASE GO TO'' is displayed. Then the 2nd display T2 is started after a prescribed time is elapsed or by switch operation, and the information not displayed is displayed from the top of the display device. The word ''PM.'' cannot be displayed here by the same reason as the display at the T1. Then in the 3rd display T3, the remaining undisplayed disply information signal ''PM.'' is displayed and the symbol display is disappeared.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] This invention relates to an individual selective call receiver with a display. More particularly, it relates to an indicator circuit for an individual selective call receiver with an indicator.

[Description of prior art]

Conventional individual selective call receivers with displays display information signals from the right edge to the left edge or from the bottom edge as a method of displaying information signals that are larger than the maximum number of characters that can be displayed on the display when displaying the contents of the information signal on a visual display. Since the system used a method of displaying characters by scrolling from the top to the top, the information signal had the disadvantage that it was difficult to read. This seems to be because the human mind processes sentences by reading the text word by word and associating those words.

As a method of eliminating this drawback, a method of scrolling word by word is proposed in Japanese Patent Application No. 57-62022 entitled "Individual selective call receiver with r display". However, even with this proposed method, if multiple words are displayed and you scroll word by word, the information before and after the scroll is compared, the newly displayed words are recognized, and the sentence is assembled. The only downside is that it's a bit annoying, and you have to scroll the number of words to see all the information signals.

[Purpose of the invention]

The present invention aims to improve the above-mentioned drawbacks, and makes it easier to read and understand the contents of the information signal displayed on the display, and further reduces the number of times of scrolling. The purpose is to provide a receiver.

[Features of the invention]

The present invention receives and demodulates a carrier wave modulated with an individually selected TFI paging signal and the following information word, decodes this individually selected paging signal, and determines that the received signal is its own paging signal. , an individual selective call receiver that decodes an information signal and displays the contents of the information signal on a visual display based on the decoded signal, handles the information signal not in units of characters but in units of words. If all of the words that cannot be displayed can be completely displayed on the display screen at one time, the displayed information will be deleted for a certain period of time or by manually operating a switch, without displaying the words that could not be displayed. After that, the undisplayed information is displayed from the beginning of the display.

Furthermore, the present invention provides, within the range of one-time display capability of the display,
When the display of all the information signals stored in the data memory has not been completed and some information signals still remain in the data memory, the display can be configured to blink or to notify by displaying a symbol.

[Explanation based on examples]

An embodiment of the present invention will be described based on the drawings.

FIG. 1 is a block diagram showing the main parts of an apparatus according to an embodiment of the present invention. In Figure 1, 1 is an antenna that receives a radio signal, 2 is a radio unit that demodulates the received radio signal, 3 is a waveform shaping circuit, and 4 is a demodulated signal that detects its own selective calling signal and detects the message signal data. a decoder section that performs judgment processing, reporting operations, and control of each section; 5 is a display section;
8-digit display LCD composed of ×7F soma matrix
(.

Liquid Crystal Device). 6 shows a drive circuit (for example, NEC@μPD7227G) for driving the display unit 5. Reference numeral 7 indicates an oscillator, and the output of this oscillator is connected to the speaker 8.

, and 10 is an electronic switch circuit that connects or disconnects power supply to each section (battery saving) according to a timing signal from the decoder section 4. Reference numeral 11 indicates a power supply, 12 indicates a DC-DC converter, and 13 indicates a clock oscillator. The decoder unit 4 also provides a code (hereinafter referred to as a "calling number") corresponding to the selective calling signal that the user wishes to receive.
F ROM (
Programmable Read Only Memo
ry) 14, and a display start switch 15.

FIG. 2 is a detailed diagram of the decoder section 4. As shown in FIG. In Figure 2, 2
0 is an instruction decoding unit, which is a central part that decodes the code to be executed and controls each block for executing the instruction. A program memory 21 stores a group of instructions to be executed. A program counter 22 is a counter for specifying the address of the program written in the program memory 21C. Reference numeral 23 is a counter circuit, and reference numeral 24 is an interface circuit that outputs an output signal SD for transferring data to the display section 5 and a synchronization signal SCK for the display section 5 to read data.

Further, numeral 25 is an arithmetic circuit that reads the arithmetic results and exchanges data with a memory circuit, a human output board, a register, and the like. 26 is an input port for inputting the rectangular signal from the waveform shaping circuit 3; 27 is an output port for outputting an addressing signal for reading out the PROM 14;
Reference numeral 8 indicates an input port for inputting the contents of the address of the PROM 14, 29 indicates an internal data bus through which data is transmitted and received between blocks, and 30 indicates a data memory.

FIG. 3 is a diagram showing a signal formant used in the apparatus of the above embodiment. In Figure 3, P is a preamble signal, S is a word synchronization code, SC1, SC2 are calling numbers, 11,
I2 represents an information signal, and E represents an end code.

The operation of the embodiment apparatus will be explained below based on FIG. In FIG. 6, a radio signal received by an antenna 1 is amplified, detected, and demodulated by a radio section 2. This demodulated signal is converted into a rectangular signal by the waveform shaping circuit 3, and is converted into a rectangular signal by the decoder section 4.
is input. When the preamble signal P is detected in this input signal, the battery saving operation is canceled and the operation shifts to detection of the word synchronization code S and further detection of the calling number of the own station, for example SCz.

This matches the content written in PROM14. When the call number SC1 is detected, a call activation signal is immediately output to the oscillator 7. At the same time, following the calling number SC1 <7
Detect information signal (1) expressed in bitASCII code. ] j11 The information signal 11 expressed in the ASCII code is temporarily stored in the internal data memory 30. This is read out by operating the display start switch 15 and transferred to the display unit 5. At the same time, a display control signal is also sent. Also, upon detection of an exit code, the battery saving operation is resumed. The display section 5 internally processes the input ASCII code, drives each segment of the display section 5 according to the display control signal ``'', and outputs the information signal 11.
Display the contents of. Further, the oscilloscope 7 starts oscillating at a low frequency in response to the input call activation signal, amplifies this, and drives the speaker 8.

As a result, the speaker 8 produces a ringing tone.

FIG. 4 shows a display device in which symbols (arrows) can be displayed with 16 digits per line.

This symbol display is used to notify that there is an information signal that is not displayed when an information signal of 16 digits or more is displayed. That is, the receiver holder can determine whether there is undisplayed information based on this symbol display.

FIG. 5 is an example of an information signal, PLEASE Go
TO19TIl +1ou AT 3 PM, is ASC
The II code indicates the state stored in dl of the data memory 30. This information signal is received and decoded by the signal former node shown in FIG. It can be obtained by The information signals stored in dl of the data memory 30 are stored in a matrix format so that they can be easily processed by the decoder section 4, and for convenience this will be referred to as D(X). For example, D
Each character of the information signal can be read out according to the parameter X, such as (1) =P, D (15) =9. Also, here is an example in which spaces are used to separate words.

In addition to the above method, there are other ways to indicate word breaks, such as using other symbols or using multiple symbols.

FIG. 6 shows an example of display of the information signal by the embodiment device. That is, in the first display, the word "19 T
Since "H" cannot be completely displayed on the display, "PL
EASE Go To” will be displayed. Here, “
A symbol display (arrow) is displayed because there is an undisplayed information signal after ``19TH''.In addition to the symbol display, there are other ways to indicate that there is an undisplayed information signal, such as a blinking display of the displayed information signal or a cursor. There is also a method of displaying it.

Next, the second display T2 is displayed after a certain period of time or
Activated by switch operation. At this time, the display information signal is displayed from the beginning of the display device than the undisplayed information signal.

Again, the word "PM," is not displayed for the same reason as in T1.

Next, in the third display T3, the remaining undisplayed information signal "PM," is displayed, and the symbol display is terminated.

FIG. 7 is a flowchart showing the flow of a processing method for executing a display operation, and the display operation will be further explained with reference to this figure. In the following explanation, each step number is written in parentheses. Further, DP represents a display pointer, DS represents the number of display characters, WN represents an argument, and ID (x) represents a message data matrix.

Initial settings are executed at (100) to (120>).

That is, (100) is a step for initializing the message data to be displayed from the beginning when the display is started, and (110) is a step for initializing the number of words to transfer data to the display. (120) indicates the number of characters in the word and whether or not there are characters other than spaces. This is a step to perform initial settings for the 7G.

In steps (130) to (180), processing for obtaining the number of characters in a word is performed. That is, in (130) the argument DP+
The character of the message specified by DS+WN is read, and it is determined whether it is a blank or not. If it is blank, it is determined in (150) whether a character other than a blank was previously present or not. When there are no characters other than white space, (16
0) to update the number of word characters (WN)130)
Return to On the other hand, if (130) is other than blank, (140)
If it is not a period, FF (H) is set to the WF flag indicating that there is a character other than a blank at (170). ). On the other hand, the WN is updated at (180) and the process moves to (260). Next, if a character other than a blank is found in (150), it is determined in (190) whether the WN instruction data can completely display the word on the display device as the number of characters in the word. child'
Here, 16 is the number of characters assuming 16 character display. If the word can be displayed, it is displayed at (200), the number of characters is updated, and the process returns to (120) to check the next word.

On the other hand, if it is determined that it cannot be displayed in (190') and (260), the process moves to (210) via (270>) without updating the display character number DS, and the display character number DS is displayed based on the display pointer DP. The number of characters is displayed.If the number of displayed characters does not exceed the number at (260), the process directly moves to (210).

(210) moves to (220>) and updates the display pointer using the fixed timer or switch operation in (280).Next, in (230), it is determined whether or not the final display data is a period, and if it is a period, the display is completed. asEND
become. On the other hand, when it is not a period (240), (250)
At step (110), the display pointer is updated until the first display becomes other than blank, and the display continues at step (110).

FIG. 8 shows the transition of the data contents of each register based on the operation of the processing procedure shown in flowchart 1 of FIG. 7 when the message data shown in FIG. 6 is displayed. . In the first display T1, D(1) to lD(1
+12=13) is displayed, and in the second display T2, I
l:1 (14) to ID (14+14=28) are displayed. Also, in the first display T1, “197 H
"DS is not updated in Word.

Also, in the second display T2, PM, “DS power/word”
It can be seen that they are not displayed because they have not been updated.

〔Effect of the invention〕

According to the present invention, clear information can be conveyed because there is no display of interrupted words. Furthermore, there is no need to identify which part of the display information is the old display information and which part is the new display information each time the display is scrolled, making the displayed information signal much easier to read. Furthermore, since the number of scrolls is reduced, the operating time of the decoder section is also reduced, and power consumption is reduced.

[Brief explanation of drawings]

FIG. 1 is a block diagram of the main parts of the embodiment device. FIG. 2 is a block diagram of the decoder section of the embodiment device. FIG. 3 is a diagram showing the signal format. FIG. 4 is a front view of the display device of the embodiment device. FIG. 5 is a diagram showing a storage state in a data memory and an example of an information signal. FIG. 6 is a diagram showing a display example of the embodiment device. FIG. 7 is a flowchart showing the display method of the present invention. FIG. 8 is an explanatory diagram showing register contents. DESCRIPTION OF SYMBOLS 1... Antenna, 2... Radio part, 3... Waveform shaping circuit, 4... Decoder part, 5... Display part, 6...
Drive circuit, 7...Oscillator, 8...Speaker, 1
0...Electronic switch circuit, 11...Power supply, 12...
・DC-DC converter, 13...clock oscillator-
14...PROM, 15...Display start switch. Patent Applicant NEC Corporation Representative Patent Attorney Nao Takashi Ide Figure 1 Figure 3

Claims (2)

[Claims] (1) A data memory that stores a received information signal, a display that optically displays the contents of the information signal, and a transfer means that transfers the information signal stored in the data memory to the display. In the individual selective call receiver with a display, the transfer means includes a first control means that handles the information signal as a set of words, and a second control means that sequentially transfers only the number of words that can be displayed on the display. a second control means; and a determining means for determining whether all of the information signals have been transferred to the display; An individual selective call receiver with a display, characterized in that it is configured to repeatedly activate the control means and the second control means. (2) The determining means is configured to give a signal to the display indicating that the information signal remains until it is determined that all the information signals have been transferred to the display, and the display is Claim No. 4 is configured to display the presence or absence of this signal! The individual selective call receiver with display according to item 11.