JPH05342167A - Electronic notebook system - Google Patents

Abstract

PURPOSE:To switch a CG pointer in the RAM of an electronic notebook corresponding to an application program prepared by a user and to display a special character pattern by providing an instruction for switching CG pattern data as a BASIC instruction in a BASIC language mounting IC card. CONSTITUTION:A control means 101 of a main body 108 of the electronic notebook executes the application program, which is defined by the user, recorded in a card RAM 106 in a BASIC language mounting IC card 105 by utilizing a BASIC interpreter mounted at a card ROM 107 in the BASIC language mounting IC card 105. When the BASIC interpreter reacts and executes the CG pattern data switching instruction contained in the application program, the CG pattern data of user definition stored in the card RAM 106 can be selected, and the leading address of the storage area of the CG pattern data can be designated to the CG pointer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic notebook system, and more particularly to an electronic notebook system in which an IC card is mounted on an electronic notebook body so that characters and CG pattern data of various characters can be displayed.

[0002]

2. Description of the Related Art Conventionally, in a BASIC language-equipped IC card for an electronic notebook (hereinafter referred to as a BASIC card), display is performed using a display subroutine incorporated in the electronic notebook. The operation of the display subroutine is as follows: 1) a process for obtaining the start address of the CG pattern data, 2) a process for calculating at which address in the CG data the CG data of the character to be displayed exists, and 3) the LCD of the CG data of each character. It consists of processing for sending to the display device.

The CG data for display is the CG of each character.
It is a table in which patterns are arranged in the order of character codes. C indicating the start address of the CG pattern of 1)
The G pointer is stored in the RAM in the electronic organizer and normally points to the beginning of the CG pattern data table in the ROM in the electronic organizer. However, by rewriting this address, another CG data pattern can be displayed. It is possible. When the conventional BASIC card is operating, this CG pattern data start address is the CG of the ROM in the electronic notebook.
It is set to the top address of the storage area of the pattern data.

[0004]

As described above, the electronic notebook system is configured so that the CG pattern data can be switched by rewriting the contents of the CG pointer stored in the RAM. ing.

However, the conventional BASIC card is
Since a command for switching CG pattern data is not provided as an SIC command, even if CG pattern data having a special character pattern is used in the application program created by the user using the BASIC language, the character pattern is not changed. There was a problem that it could not be displayed.

The present invention has been made in consideration of such circumstances, and by providing a CG pattern data switching instruction as a BASIC instruction in a BASIC card, an electronic notebook of an electronic notebook is created by an application program created by a user. (EN) An electronic notebook system capable of switching a CG pointer in a RAM and displaying a special character pattern.

[0007]

As shown in FIG. 1, an electronic notebook system of the present invention comprises an electronic notebook body 108 and a BASIC language-equipped IC card 105 having a BASIC language interpreter attachable to the electronic notebook body. The electronic notebook body 108 includes a ROM 104a that stores CG pattern data for displaying characters in a storage area,
Storage means 104 including a RAM 104b that stores a CG pointer indicating the start address of the storage area
And a display means 102 for displaying characters, an input means 103 for inputting characters and operation instructions, and a control means 101 for controlling the overall operation in response to the input operation instructions. 105 includes a card ROM 107 for storing BASIC language instructions for switching CG pattern data and a card RAM 106 for storing a user-defined application program.

[0008]

As shown in FIG. 1, the control means 101 of the electronic notebook main body 108 is the card RO in the BASIC card 106.
The BASIC interpreter installed in the M107 is used to execute the user-defined application program recorded in the card RAM 106 in the BASIC card 105.

When the BASIC interpreter reads and executes the CG pattern data switching command included in the application program, the control means 101 causes the RA in the main body to operate.
C used for displaying characters by rewriting the address designated by the CG pointer stored in M104b
As the G pattern data, the CG pattern data previously written in the ROM 104a in the main body or the user-defined CG pattern data stored in the card RAM 106 is selected, and the head of the storage area of the selected CG pattern data is selected. The address is written as the content of the CG pointer.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 2 shows a system diagram of the electronic notebook. The control unit 1 that controls the electronic notebook includes a CPU 2 and a gate array 3. The control unit 1 corresponds to the control means 101 in FIG.

The LCD 4 includes a decoder 5, a bit map memory 6, a common driver 7 and a segment driver 8.
It is connected to the control unit 1 via. The data to be displayed on the LCD is given from the control unit 1 to the decoder 5. The decoder 5 decodes the data and writes it in the bitmap memory 6. The bit map memory 6 is a memory in which 1 bit is assigned to 1 dot of the LCD 4, and "1" is assigned to the bit corresponding to the dot to be turned on.
"0" is written in the other bits. The common driver and the segment driver 8 display characters, figures, etc. on the LCD 4 according to the stored contents of the bitmap memory 6. The LCD 4, the decoder 5, the bit map memory 6, the common driver 7 and the segment driver 8 correspond to the display means 102 in FIG.

The control unit 1 also includes a real time clock (RTC) 9, a printer, a personal computer,
An expansion terminal 10 for connecting to another electronic notebook and an expansion terminal 11 dedicated to a memory card are connected. The expansion terminal 11 has a female connector 13 of the memory card 12.
The male connector 14 connected with the male connector 14 and the detection unit 15 for detecting that the female connector 13 of the memory card is connected are connected.

A ROM 16 and a RAM 17 backed up by a battery are further connected to the control unit 1. A display pattern corresponding to each character is recorded in the ROM 16 as a table, and the head address of this table is usually stored as a CG pointer at a fixed address in the RAM.

The BASIC card 12 is a type of memory card, and has a BASIC interpreter installed in the card ROM 18 and a BASIC program stored in the card RAM 19 to operate. Also, the card RAM 19
, There are various work areas for the BASIC interpreter to operate. The BASIC card operates by turning on the power for the first time after being attached to the electronic notebook via the expansion terminal 11 dedicated to the memory card, or by pressing the CARD key 21 of the keyboard 20 of the main body while executing the application of the electronic notebook.

Here, switching of the CG table is performed by BAS.
System variable_C to enable programming in IC language
G $ is introduced to define an instruction for referring to and switching CG pattern data. By referencing this system variable,
It is possible to determine whether the current display processing refers to the CG pattern of the ROM in the electronic notebook or the CG pattern defined by the user. Also, by substituting characters for this system variable, the CG of the ROM in the electronic notebook
Allows setting for switching to a pattern and switching to a user-defined CG pattern.

Reference instruction _CG $ Indicates the current set value of CG. Return value = "S" CG pattern in ROM in electronic notebook. Return value = "U" User-defined CG pattern. Setting command _CG $ = "S" Switch to the CG pattern of the ROM in the electronic notebook. _CG $ = “U” Switch to a user-defined CG pattern.

The process of switching the CG pattern data to the user-defined CG pattern data will be described with reference to the flowchart shown in FIG. First, it is checked whether or not the user CG flag is set to ON (step S10), and if the user CG flag is ON, it means that the user-defined CG is currently switched, and the processing is ended without any processing. User C
If the G flag is OFF, the CG setting flag is checked (step S11).

CG setting flag is ON (step S12)
If so, since the user-defined CG pattern is set in the work area of the BASIC card, the RAM of the electronic notebook
CG pointer of the user CG is rewritten (step S13) to indicate that the user CG is currently switched.
The flag is turned ON and the process is terminated (step S1).
4).

If the CG setting flag is OFF, "CG.DA
Check the "T" file (step S15). D
If the AT "file does not exist, the user-defined CG cannot be registered, and the process ends as an error (step S16). In the case of an error, the CG is the system ROM.
The internal CG remains the same, and the value of _CG $ also remains “S”.

If the "CG.DAT" file exists,
The contents of this file are transferred to the system area of the BASIC card as CG data (step S17). C
To indicate the registration of G data, the CG setting flag is turned on (step S18). Since the registration is completed, "CG.
Since the DAT "file is unnecessary, this file is deleted (step S19), and then step S1.
3 and the process of step S14 are performed, and the CG switching process is ended.

The CG pattern data is transferred to the RO of the electronic notebook body.
The process of switching to the CG pattern data in M16 is shown in FIG.
This will be described with reference to the flowchart shown in. RAM1 of electronic notebook
The CG pointer 7 is rewritten to point to the CG pattern data in the electronic notebook body ROM 16 (step S20),
The user CG flag is turned off to indicate that the CG pattern data of the ROM 16 of the main body has been switched to (step S21).

FIG. 5 shows the structure of the CG pattern data of the character "A". CG in the "CG.DAT" file
The structure of the pattern data follows the format of the CG data of the electronic notebook.

Thus, according to this embodiment, B
By providing the BASIC language instruction for switching the CG pattern data in the card ROM 18 of the ASIC card, it becomes possible to switch the CG pointer in the RAM of the electronic notebook by the application program created by the user, and the special character pattern Can be displayed.

Further, it becomes possible to execute an application program for displaying and processing a user-defined special character pattern. Since a user-defined special character pattern can be displayed, it is possible for the user to make a unique display.

[0025]

The electronic notebook system of the present invention comprises an electronic notebook main body and a BASIC language-equipped IC card equipped with a BASIC language interpreter that can be attached to the main body, and the CG pattern is stored in the card ROM of the BASIC language-equipped IC card. By providing the BASIC language command for data switching, it becomes possible to switch the CG pointer in the RAM of the electronic notebook with the application program created by the user, and it is possible to display the special character pattern defined by the user. Becomes

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of the present invention.

FIG. 2 is a block diagram showing a configuration of an exemplary embodiment of the present invention.

FIG. 3 is a flowchart of processing for switching to user-defined CG pattern data.

FIG. 4 is a flowchart of a process of switching to CG pattern data in a ROM of the electronic notebook body.

FIG. 5 is an explanatory diagram showing a configuration of CG pattern data of a character “A”.

[Explanation of symbols]

 1 Control Unit 2 CPU 3 Gate Array 4 LCD 5 Decoder 6 Bitmap Memory 7 Common Driver 8 Segment Driver 9 Real Time Clock (RTC) 10 Expansion Terminal 11 Memory Card Dedicated Expansion Terminal 12 Memory Card 13 Female Connector 14 Male Connector 15 Detector 16 ROM 17 RAM 18 card ROM 19 card RAM 20 keyboard 21 CARD key

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location G06F 9/45 G06K 19/07

Claims (1)

[Claims] 1. A BASIC having an electronic notebook body and a BASIC language interpreter attachable to the electronic notebook body.
The electronic notebook body is composed of a language-equipped IC card, and the electronic notebook body has a ROM that stores CG pattern data for displaying characters in a storage area and a C that indicates the start address of the storage area.
A storage unit including a RAM that stores a G pointer, a display unit that displays a character, an input unit that inputs a character and an operation instruction, and an entire operation is controlled in response to the input operation instruction. The IC card with the BASIC language is equipped with a control means for
An electronic notebook system having a card ROM for storing IC language instructions and a card RAM for storing user-defined application programs.