JPH06161702A - Display processing method for undisplayable code of equipment-to-equipment communication - Google Patents

Abstract

PURPOSE:To distinctively display the undisplayable code and securely hold communication data by holding the undisplayable code in a reception state when the undisplayable code is received, and displaying a specific symbol in the opposite color from a background color at its corresponding display place. CONSTITUTION:When one electronic equipment sends data with which the code that can not be displayed on the other electronic equipment is mixed to the other electronic equipment, the sent data are held as received data as they are without converting the code which can not be displayed on the other electronic equipment into another space code, etc. At the display place of the undisplayable code, the displayable symbol is displayed in the opposite color from the background color. For, for example, lowercase character codes of undisplayable (b), (d), and (f), undisplayable symbols painted out in black as the opposite color from white as the background color are displayed at the display places corresponding to the respective lower case character codes when a background color flag 6c is set to '1' and white is set as the background color.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a display processing method when a non-displayable character code, for example, is received when communication is performed between communicable portable electronic devices such as an electronic memo and an electronic notebook. It is about.

[0002]

2. Description of the Related Art In recent years, many types of portable electronic devices such as electronic memos having a communication function have been commercialized. When communication is performed between these electronic devices, there are cases where a higher-order model and a lower-order model on the product lineup are connected to perform communication. At this time, a character code that can be displayed on the higher-level model but cannot be displayed on the lower-level model may be sent from the upper-level model to the lower-level model.The received undisplayable character code is conventionally displayed as follows. ing.

For example, when communication is performed between a first electronic device capable of displaying both uppercase and lowercase letters of an alphabet and a second electronic device capable of displaying only uppercase letters of the alphabet, the first electronic device is shown in FIG. As shown on the left side of (a), data in which uppercase letters "A", "C", "E" and lowercase letters "b", "d", "f" are mixed is shown on the right side. However, if this data is transmitted from the first electronic device to the second electronic device,
In the second electronic device, as shown on the left side of FIG.
All lowercase codes that cannot be displayed are converted to "SPC" space codes and then held as received data. Then, in the display section of the second electronic device, FIG.
As shown on the right side of, the display corresponding to the space code is displayed in the same color as the background color of the display unit.

[0004]

By the way, in a display section such as an LCD, pixels to be displayed are generally displayed in black on a display screen having a white background color. Therefore, if the entire area where the above space code is displayed is white, which is the same color as the background color of the display screen, when the display of the second display section is viewed, the non-displayable character code is displayed in the area in the transmission data. There is an inconvenience that the distinction between the existence and the simple space cannot be clearly determined.

Further, since the lower case code is replaced with the space code when it is received by the second electronic device, when the received data is reversely transmitted from the second electronic device to the first electronic device, The received data of the electronic device is shown in FIG.
As shown on the left side of, the lowercase code in the first transmitted data is replaced with the space code and disappears, so it becomes impossible to hold the data in communication, and when the received data is displayed, As shown on the right side of the same figure (c), since the entire area where the space code is displayed is white, which is the same color as the background color of the display screen, has the non-displayable character code been transmitted to the second electronic device? It is not possible to determine whether or not.

In view of this, the present invention provides an inter-device communication in which when a non-displayable code is received, it can be clearly displayed on the display unit that the code cannot be displayed by the device of that model, and the communication data can be held securely. It is a technical object to provide a display processing method of a non-displayable code in 1.

[0007]

According to the present invention, as a technical means for achieving the above-mentioned object, a non-displayable code in inter-device communication is displayed and processed by the following method. That is, in communication between electronic devices having at least two communication functions of different models, a code that can be displayed by one electronic device but cannot be displayed by the other electronic device is received by the other electronic device. When I did
The unreadable code is held in the receiving state without being converted, and a predetermined undisplayable symbol is displayed in the display portion of the undisplayable code on the display unit in a color opposite to the background color of the display screen. It is characterized by using means for displaying.

[0008]

When one electronic device transmits data containing a code that cannot be displayed by the other electronic device to the other electronic device, the other electronic device converts the code that cannot be displayed by another space code or the like. The transmission data is retained as it is as the reception data without being converted into, and a non-displayable symbol in a color opposite to the background color is displayed at the corresponding display portion of the non-displayable code. Therefore,
With the non-displayable symbol, it is possible to visually recognize at a glance that the data in which the non-displayable code exists is received.

Further, since the received data of the other electronic device retains the state of being received without performing the process of replacing the non-displayable code with another code, it is received from the other electronic device. When data is reversely transmitted to one electronic device, the received data of one electronic device is the same as the originally transmitted data, and the original data can be displayed as it is. Therefore, the data can be completely retained in the mutual communication.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a front view of a portable electronic device to which the display processing method of the present invention is applied, which includes an LCD display section (1) having a dot matrix type display area and a key input section (2). The main parts of the key input section (2) will be described. Numerical keys (2a) for inputting numbers 0-9, alphabet input keys (1b) for inputting English letters AZ, cursor up / down. Cursor move key (2c) to move left and right, calendar,
It is equipped with a mode selection key (2d) for selectively designating and displaying modes such as schedule, telephone number and memo, a data recall key (2e) and a background color key (2f) for switching the background color of the display. There is.

FIG. 2 shows a block configuration of the portable electronic device. The central processing unit (3) controls the entire device, and the key input data from the key input unit (2) is the key matrix (4). ) Is detected and input by
The signal is processed based on the operation program and various font data stored in advance in the ROM (5), and the processing result is R
The LCD (1) is temporarily stored in the AM (6), and the LCD display section (1) is drive-controlled via the LCD drive circuit (7) to be displayed. Further, the RAM (6) is used for data memory and control, and has a system area (6a) having a register for storing a flag used for device control, or for internal calculation. , And a data area (6b) for storing data such as memos and telephone numbers registered by the user. In addition, the system area (6
A background color flag (6c) is arranged in a),
In this embodiment, the background color flag is "1" as described later.
, The background color is displayed in white, and when the background color flag is "0", the background color is displayed in black. This switching is performed by operating the background color key (2f).

Next, the operation of the above embodiment will be described with reference to FIGS.
This will be described with reference to each of the flowcharts and the explanatory diagram of the relationship between the sending / receiving data and the display in FIG. Now, the first that can display both uppercase and lowercase letters of the alphabet
A case will be described as an example where communication is performed between the electronic device of No. 2 and the second electronic device that can display only uppercase letters of the alphabet. In the first electronic device, uppercase letters “A”, “C”, “E” and lowercase letters “b”, as shown on the left side of FIG.
The data in which each character code such as “d” and “f” is mixed,
It can be displayed as shown on the right. When this data is transmitted from the first electronic device to the second electronic device, in the second electronic device, as shown in the left side of FIG. The transmission data from the first electronic device is retained as it is as the reception data without conversion.

Then, as shown in FIG. 3, it is judged whether or not each code of the received data is a non-displayable code (step S1), and displayable "A", "C",
If it is an uppercase code "E", the character code corresponding to each uppercase code is displayed as shown on the right side of FIG. 5B (step S2). On the other hand, if it is a non-displayable lower case code of "b", "d", "f", it is determined whether the background color flag (6c) is "1" (step S3). Now, when the background color flag (6c) is "1" and the background color is set to white, the lowercase code of each lowercase code is displayed in the corresponding portion.
As shown on the right side of (b), a non-displayable symbol filled with a black color opposite to the white background color is displayed (step S4). On the other hand, when the background color flag (6c) is "0" and the background color is set to black, a non-displayable symbol in white, which is the opposite color to the black background color, is displayed (step S5). Therefore, it is possible to visually recognize at a glance that the data in which the non-displayable code exists at the position is received by the non-displayable symbol.

The background color flag (6c) is switched by operating the background color key (2f). When the background color key (2f) is operated as shown in FIG. 4 which shows the flowchart of the operation of the background color key (2f), is the background color flag (6c) first set to "1"? If it is set to "1", the background color flag (6c) is changed to "0", while the background color flag (6c) is set to "0". If it is set to, the background color flag (6c) is changed and set to "1". That is, every time the background color key (6c) is operated, the background color flag (6c) inverts the set value and is alternately changed to "1" and "0". It should be noted that current portable electronic devices such as electronic organizers generally do not have a function of determining the background color to be white and switching the background color, and therefore the non-displayable symbol is uniquely determined to be filled with black. In this case, the present invention can be applied without providing the background color flag (6c).

Further, since the received data of the second electronic device retains the received state as it is without performing the process of replacing the non-displayable character code with another code, the second electronic device receives the data. When the received data is reversely transmitted from the device to the first electronic device, the received data of the first electronic device becomes the same as the originally transmitted data, as shown in the left side of FIG. As shown on the right side of c), the original data can be displayed as it is. That is, the data can be completely retained in the mutual communication.

In the above embodiment, the non-displayable symbol is displayed in a color opposite to the background color. However, the present invention is not limited to this. For example, a rectangle or an X mark is displayed in a color opposite to the background color. The display may be performed so long as it is a display that can be clearly distinguished from the data display such as codes and symbols.

[0017]

As described above, according to the display processing method of the non-displayable code in the inter-device communication of the present invention, when the data including the non-displayable code is received, the non-displayable code is used as the space code. The received data is retained as it is without being converted to other codes, and the undisplayable symbol is displayed in the opposite color to the background color at the display location of the undisplayable code. With the possible symbol, it is possible to visually recognize at a glance that the data in which the undisplayable code exists is received. Further, since the received state is held as it is without performing the process of replacing the non-displayable code with another code, the data can be completely held in the mutual communication.

[Brief description of drawings]

FIG. 1 is a front view of a portable electronic device to which an embodiment of the present invention is applied.

FIG. 2 is a block diagram showing the same as above.

FIG. 3 is a flowchart of display processing of the above.

FIG. 4 is a flowchart of the conversion of the background color of the display screen.

FIG. 5 is an explanatory diagram of the relationship between the transmitted / received data and the display.

FIG. 6 is an explanatory diagram of a relationship between transmission / reception data and display by a conventional display processing method.

[Explanation of symbols]

 1 LCD display

Claims (1)

[Claims] 1. In communication between at least two electronic devices having different types of communication functions, a code that can be displayed by one electronic device and cannot be displayed by the other electronic device is used as the other electronic device. When it is received by the device, the impossible code is held in the receiving state without being converted, and a predetermined color is displayed on the display corresponding portion of the non-displayable code on the display unit by a color opposite to the background color of the display screen. The non-displayable code display method in inter-device communication, characterized by displaying the non-displayable symbol.