JPS6273342A - Ram card access interface device - Google Patents

Abstract

PURPOSE:To use effectively document data by mounting a RAM card on a connector of a card access interface device and reading and writing data on the RAM card through connectors of a signal controller and a document editing device. CONSTITUTION:A RAM card access interface device 27 is connected to a document editing device 28 like a stand-alone Japanese language word processor. The RAM card is mounted on a connector 1 of the device 27 to read and write data on the RAM card through a signal control circuit 3 and a connector 2 by the device 28. Consequently, if the RAM card is mounted on the connector 1 of the device 27 after document data generated by a handy Japanese language word processor is stored in the RAM card, this document data can be used by the device 28.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a RAM card access interface device.

[Background of the invention]

Small document editing devices such as personal Japanese word processors that have become rapidly popular in recent years include the “Cylindrical PC J” published by Nikkei McCraw-Hill.
December 17, 1984 issue "Special feature on new products in the latter half of 1984"
As described under the title, RAM (Random Access Memory) is used as an external storage device for data such as created documents.
ory ) cards (also called RAM backs or memory cards). This RAM card is a sealed package of battery-backed static RAM, and is about the size of a business card to make it compact and easy to handle, and has a storage capacity of several kilograms or tens of kilobytes. Therefore, for example, a non-Japanese type Japanese word processor can store document data of several hundred to several dozen pages.

By the way, conventionally used document editing devices such as stand-alone Japanese word processors are often used for business purposes, so they can be used as external storage devices for data.
70 in 5-inch and 8-inch sizes that can record large amounts of data.
As a result, it is impossible for a conventional stand-alone Japanese word processor to read or copy the RAM card that stores sentences created with a handheld Japanese word processor, and the document data is compatibility was not achieved.

[Purpose of the invention]

An object of the present invention is to read a RAM card storing document data created by a document @ real device such as a non-day type Japanese word processor even by a written device such as a standalone Japanese word processor. The goal is to make it possible to share documents and make use of each other's document data.

[Summary of the invention]

This purpose is i! In order to achieve this, in the present invention, t(, A M
It has a first connector that can mount a card, and a second connector that connects to a document editing device such as an existing business Japanese word processor, and one card can be connected to the first connector. By implementing and connecting the second connector to a document editing device such as a stand-alone Japanese word processor, you can create a sentence '4 like a stand-alone Japanese word processor! R even in NAl6 concentrator
The present invention provides an AM card access interface device that enables AM card access.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail using the drawings.

FIG. 1 is a block diagram showing the basic configuration of a RAM card access interface device according to an embodiment of the present invention. 1 is a first connector for mounting a RAM card, and an address bus and a data bus for accessing the RAM in the RAM card.

There are connectors with approximately 30 pins for connecting read/write control signals, etc., and each connector is plated with gold, for example, approximately 1 μm in thickness so that it can withstand multiple attachments and disconnections. A second connector for connecting to a document editing device such as a 2-digit standalone Japanese word processor. For example, it is possible to connect the document editing device's address bus, data bus, read/write control signals, etc. in parallel. There is a plug with about 50 pins. 3 is the RA in the RAM card for the address, data bus, read/write control signals, etc. of the document editing device.
This is a signal control circuit that converts the M address bus, data bus, read/write control signals, etc., and adjusts the signal level.

FIG. 2 is a block diagram of the signal control circuit 3, in which 4 is an address bus buffer, 5 is an address decoder for generating a control signal for reading the general AM in the RAM card from address information, and 6 is a data bus. This is a bidirectional bus buffer that switches the direction of the data bus based on information from the address decoder 5. Reference numeral 7 denotes an identification signal generation unit for identifying whether or not the document editing device is connected to the RAM card access interface device, which is assigned to a specific address when the RAM card access interface device is connected to the document editing device. When the control device in the document editing device checks the connection, fixed information (for example, a low level signal) is generated on the data bus. Reference numeral 8 denotes a system control program storage memory that controls the system when a 1 card access device/terface device is connected to the system device ucaA.

Figure 3 is an external view of the tAM card access interface device, in which 1 is the first connector for mounting a RAM card, and 2 is the first connector for connecting to a document editing device such as a stand-alone Japanese word processor. 2 connector, 9Vi first connector 1 and signal control circuit 3
This is the main body of the card access interface device with a built-in card.

Figure 4 is a circuit block diagram of an AM card, where 10 is an AM card connector section that connects to a system such as a CAM card access interface device or a handheld Japanese word processor, and 11 is a storage element R.
, in the AM section, for example, No. 8 (Ito's memo l) L S
A combination of two I has a storage capacity fk of 16 bytes. 12 is an address decoder unit that selects the memory LSI from the ATVS signal sent from the connector unit 10 and generates all control signals for writing and reading; 13 is a battery for retaining the memory contents; and 14 is a power supply control unit. RAM
The power supply system of the RAM card can be controlled by switching between the drive power sent from the system side such as a card access interface device and the power supply from the battery 13.
The battery 13 has a function of checking the life of the battery 13 by recognizing the voltage drop of the battery 13.

Figure z5 is an external view of the AiM card, where 10 is the key card connector section, 15 is the memory element 11, and the address decoder section 1.
2. This is a RAM card main body section on which a battery 13 and a power supply control section 14 are mounted. The size of the RAM card is, for example, the size of a business card, and it is small, lightweight, and has a shape that takes into account portability.

Figure 6 is an external view of a hand-held Japanese word processor, where 16 is an input device for inputting characters, operation modes, etc.
Reference numeral 7 denotes a display device for displaying input data, such as a liquid crystal display for displaying about 10 characters. Reference numeral 18 denotes a printing device that prints the editing results, and is, for example, a thermal one-shot printing device. Reference numeral 19 denotes a RAM card insertion slot, and by inserting a RAM card here, document data, which is an editing result, is stored in the ltAM card. For example, a RAM card can store approximately 10 pages of document data.

FIG. 7 is a block diagram of a document editing device such as a stand-alone Japanese word processor, and 20 is an input device such as a keyboard or tablet for inputting desired characters or operation modes, and is connected to a control device 21. Enter the character code or operation command code. Brightening outfit #21
controls a system memory 22 that stores a system control program that temporarily stores codes such as characters inputted from the input device 20 and document data resulting from the output. It also sends information to be displayed to the display device 23 and displays it, controls reading and writing of the external storage device 25, and also controls the RAM
Controls the card access interface device. The system memory 22, which stores a system control program that temporarily stores document data, is composed of RAM f or RAM and ROM (read-only memory = l(, ead
QnlyMemory, and when configured only with AAi, the system control program is read from the external storage device 25 as necessary and temporarily stored in the RAM. Additionally, the system control program may be stored in the ROM. The output device 24 is a printer that outputs a document edited by operating the input device 20 as a hard copy. 25 is an external storage device for storing edited documents, etc.; for example, 5
This is a 70-inch or 8-inch disc device. 26
Is the AM card accessible? , is a connection terminal for connecting an AM card access interface device, and if a RAM card access interface device t is connected to this connection terminal 26, the ordinary person M in the LAM card (attached to the RAM card access interface device) can be connected to the connection terminal 26. It becomes possible to read and write from the document editing device.

FIG. 8 is a diagram showing a flowchart of starting the RAM card control program in the control device 21. That is,
In step 801, the control device 121 stores the system memory 22 in step 801.
An address storing information on the presence or absence of a RAM card access interface device is set in step 80.
In step 2, the information is read out, and in step 803, it is determined whether the RAM card access interface device is connected. If the RAM card access ink-face device is connected, step 804
Read out the system control 1 program for when a card access interface device is connected from the system control program storage memory 8 in the FLAM card access interface aA, and start the system according to this system control program.L, if the RAM card access interface device is not connected. Sometimes, in step 805, the system is started according to a system control program for when the RAM card access interface device is not connected, which is stored in the memory within the system.

No. 9-1 is a diagram showing a flowchart when the control device 21 reads out a document. The control device 21 displays a storage device selection screen on the display device 23 in step 901,
The user is requested to select and input whether the document is stored in the floppy disk device 25 or the RAM card.

Next, in step 902, the input key is determined, and if the input is to select a floppy disk device, the process moves to step 903, accesses the 70 tubi disk device w, 25, reads out the list of document names, and displays this on the display device 23. Applicable (
Purpose) To obtain human power for document selection ff'Q. Then, the process moves to step 904 to execute manual processing of the relevant document, and in step 905, the corresponding document data is transferred from the floppy disk to the system memory 22, and the process moves to step 906, which is document editing processing.

On the other hand, if there is an input to dialyze the RAM card, the process moves to step 908 via steps 902 and 907.
l connected to the M card access interface device
(Accesses the AM card, reads out the document name restructuring, displays it on the display device 23, and requests selection input of the relevant document.Then, the process moves to step 909 and executes the relevant document name manual processing, and step 910 The corresponding document data is transferred from the RAM card to the system memory 22, and the process proceeds to step 911, the document editing process.
In the case of registration, the same sequence is applied to the selected floppy disk device or W card.

FIG. 10 is a diagram showing a flowchart when the control device 21 reads documents from the R and AM cards. That is, when the RAM card is selected as the storage device, the control device 121 provides a buffer area for data conversion in the system memory 22 in step 1001.

Next, in step 1002, data is read from the RAN1 card, and in step 1003, the read data is temporarily stored in the buffer area. Next, step 10
In step 04, the data in the RAM card read into the buffer area is converted into a data structure that can be used within the document editing device. This compresses the document data so that it can store a large amount of documents by making full use of the memory of the RAM card, which has no data format. This is because the document data format has a redundant m= in order to avoid confusion. For example, R
The data format of the AM card compresses character attribute information and expresses one character in about 2 bytes, but the data format in the document editing device expresses one character in 4 bytes.

The RAM card data converted into a data structure that can be used within the document editing device in the buffer area is processed in step 1.
At step 005, the document is moved to the document area in the system memory 22. This document area is a work area for editing and proofreading within the document editing device, and the data transferred to this document area becomes a target document for editing and proofreading in the document editing device.

FIG. 11 shows w1 outside of a sentence-f editing device such as a stand-alone Japanese word processor. 20 is an input device, 23 is a display device, 24 is a printing device, 25 is an external storage device, and 26 is a connection terminal.

FIG. 12 is a diagram in which the RAM card access interface device of one embodiment of the present invention shown in FIG. 3 is connected to a document editing device such as the stand-alone Japanese word processor shown in FIG. A M card access interface device 28 is a document editing device such as a stand-alone Japanese word processor;
By mounting the KA~1 card on the first connector 1 in the M card access interface device 27, the RA
The 81 card can be read and written by a document editing device 128 such as a stand-alone Japanese word processor. Therefore, for example, if document data created using the handheld Japanese word processor shown in FIG. , the document data can now be used in the document editing device 28 of FIG. Therefore, document data created with a handheld Japanese word processor can be used as is or further edited with a stand-alone document editing device that is a higher-end machine.

In general, many handheld Japanese word processors have drawbacks such as slow printing speed, inability to print multiple sheets at the same time since they are not impact printers, and inability to draw graphics. However, according to an embodiment of the present invention, , document data 'i created with a handheld Japanese word processor.
Since it can be used in a higher-end document editing device via a RAM card, high-speed printing, simultaneous printing of multiple pages, and the addition of graphics can be easily performed.

In one embodiment of the present invention, the signal control circuit 3 in the ltAM card access interface device 27 is configured as an RA.
Although the data is transmitted and received between the M card and the document editing device 28 in a parallel format, the data transmission and reception to the document editing device 28 may be performed in a serial format. If you do it this way, )? , the number of connections of the second connector of the AM card access interface device 27 can be reduced.

Further, in one embodiment of the present invention, an example of reading data from a RAM card has been shown, but if the document editing device is provided with a data conversion means for storing data in a RAM card, the reading operation can be performed. It is possible to perform the same sequence as the operation of .

Therefore, document data created with the document editing device of the higher-end machine can be
It is now possible to store data on an AM card, and document data created with a stand-alone document editing device can also be used with a handheld Japanese word processor. Historically, even document editing devices that do not have a RAM card insertion device, such as stand-alone Japanese word processors, have been able to selectively use two types of external storage devices: an existing external storage device such as a floppy disk device, and a RAM card. It becomes possible.

〔Effect of the invention〕

According to the present invention, an AM card that stores document data created with a document editing device such as a hand-held Japanese word processor can be used without a RAM card insertion device such as a stand-alone Japanese word processor. Sentence 1/editing devices can also read and write, making it possible to take advantage of mutual interaction (f
Even in a document editing device that does not have an M card insertion device, it is possible to selectively use two types of external storage devices: an existing external storage device such as a floppy disk device, and a RAM card.

[Brief explanation of drawings]

4. FIG. 1 is an external view of a RAM card face device according to an embodiment of the present invention, FIG. 4 is a circuit block diagram of an IT AM card, and FIG. A.M card external view, No. 6
The figure is an external view of a handheld Japanese word processor, number 7.
The figure is a block diagram of a document editing device such as a stand-alone Japanese word processor.
Flowchart for starting the 1-card gloss 1 program, No. 9
The figure is a flowchart when reading a document in the sterilization device 21, FIG. 10 is a flowchart when reading a document from the same RAM card, and FIG. 11 is a diagram showing the appearance of a document editing device such as a stand-alone Japanese word processor. FIG. 12 is a diagram in which the card access interface device of one embodiment of the present invention shown in FIG. 3 is connected to a document editing device such as the stand-alone Japanese word processor of FIG. 11. 1...First connector, 2...Second connector, 3
... Signal control ω11 circuit, 8 ... system 7171.
1 Town 1 program storage memory, 26...l (A M
Card access interface device.

Claims (1)

Claims: 1. A RAM card access interface device having at least a first connector for mounting a RAM card and a second connector for connecting to a system device. 2. The RAM card access interface device according to claim 1, wherein the second connector has a configuration capable of connecting an address bus and a data bus of a system device in parallel. interface device. 3. The RAM card access interface device according to claim 1, which has a signal control circuit capable of serially connecting the address bus and data bus of the system device, and the second connector has an address bus and a data bus of the system device. A RAM card access interface device characterized by having a configuration in which a bus and a data bus can be connected serially. 4. The RAM card access interface device according to claim 1, wherein the RAM card access interface device includes a memory storing a system control program controlled by a system device to which the RAM card access interface device is connected. A RAM card access interface device characterized by: