JPH0689306A - Portable information processor - Google Patents

Abstract

PURPOSE:To alter data on an unrewritable storage device by altering the data on the unrewritable storage device by using data on a rewritable storage device. CONSTITUTION:A CPU 101 executes a program stored in an internal ROM 102, internal RAM 103, external ROM 104 or external RAM 105 by using data stored in the internal ROM 102, internal RAM 103, external ROM 102, or external RAM 105 and displays the result on a display device 107. Further, the CPU 101 transfers data to and from another information processor in two ways through an input/output interface 106 at need. Data supplied from the information processor 108 are stored in the rewritable storage device and used to compensate or update the data on the unrewritable storage device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention When using data stored in a non-rewritable storage device used in a portable information processing device, the present invention stores a database unique to each program in the rewritable storage device. It is possible to change the data on the non-rewritable storage device by performing the data processing while constructing and processing the program while comparing and referring to the data written in the non-rewritable storage device. The present invention relates to a portable information processing device capable of changing data in a non-rewritable storage device by using data in a rewritable storage device.

[0002]

2. Description of the Related Art Most databases used in conventional portable information processing devices are supplied with a non-rewritable storage device such as a mask ROM or an optical disk, for example. It has not been possible to easily update data that changes day by day or correct incorrect data.

[0003]

As described above, in the conventional device, the data could not be updated because the data was stored in the storage device which cannot be rewritten.

[0004]

According to the present invention, there is provided, in a portable information processing device, storage means for storing arbitrary data in a rewritable storage device and an arbitrary program operating on the portable information processing device. Discriminating means for uniquely discriminating target data from a plurality of data stored in the rewritable storage device to be used, discriminating means for discriminating whether the discriminated data is used or not, and rewriting It is configured such that it has means for dynamically using the data stored in a possible storage device and the original data stored in a non-rewritable storage device.

[0005]

In the prior art, most of the data used in the portable information processing device uses only the data recorded in a non-rewritable storage device such as a mask ROM or an optical disk. On the other hand, in the present patent, the first step is to store updated data regarding the database used by any program from any information processing device or its difference in the rewritable storage device of the portable information processing device. And a data stored in the rewritable storage device and a second step of uniquely discriminating the target data from a plurality of data stored in the rewritable storage device. The third step of deciding whether to use the data selected from among the data stored on the rewritable storage device and the data on the non-rewritable storage device. The original data placed and a fourth step of dynamically used.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram of an apparatus configuration showing an embodiment of the present invention. This apparatus is roughly divided into a portable information processing apparatus 100 and an information processing apparatus 108. Further, the portable information processing device 100 includes a CPU 101 and an internal R
An OM 102, an internal RAM 103, an input / output interface 106, a display device 107, an external ROM 104 that can be separated from the main body, and an external RAM 105. The CPU 101 includes an internal ROM 102 and an internal RAM 1.
03, the external ROM 104 or the external RAM 105 is used to use the internal ROM 102, the internal RAM 103, the external ROM 104 or the external RAM 10.
The program stored in 5 is executed, and the result is displayed on the display device 107. Further, the CPU 101 performs bidirectional data transfer with another information processing apparatus 108 via the input / output interface 106 as needed. At this time, data obtained from another information processing device is stored in the internal RAM 103 or the external RAM 105 as needed.

FIG. 2 shows an example of an algorithm of a data retrieval method on a ROM according to the conventional method.

FIG. 3 shows an example of a data search algorithm for compensating the data on the ROM with the data on the RAM according to the present patent.

FIG. 4 is an example of an identifier for discriminating data added to the head of data on the RAM used in the algorithm shown in FIG. 3, and FIG. 5 shows a specific example thereof. The data identifier is an identifier unique to the program that uses the data, and is used to determine whether it can be used by a certain program. The data status is used to determine whether to use data supplied from a non-rewritable storage device or data obtained from an external information processing device, such as version number and date. In addition, an identifier is used to discriminate between old and new data.

Next, the operation of this apparatus will be described with reference to FIGS.
This will be described with reference to FIGS. 3, 4, and 5. First, in similar devices up to now, data used in programs (for example, dictionary data) is supplied by a non-rewritable storage device (for example, mask ROM, optical disk, etc.). Therefore, as an example, FIG. 2 shows a search algorithm in the case where data exists in the ROM. However, since the data regarding the entered keyword is searched only from the data in the ROM, the portable information processing device is manufactured. Only the data when the ROM was created could be searched regardless of the elapsed time.

On the other hand, according to the present invention, it becomes possible to use new data stored in the rewritable storage device in addition to the data supplied in the non-rewritable storage device as usual. There is.

New data is supplied from, for example, another information processing apparatus 108 via the input / output interface 106 and stored in the internal RAM 103 or the external RAM 105. A data identifier and a data status are added to this new data as shown in FIG. The data identifier is an identifier for a program using the data to uniquely determine the corresponding data. The data status is an identifier for determining whether to use the data supplied by the existing non-rewritable storage device or the newly supplied data. FIG. 3 shows an example of a search algorithm using the data existing in the ROM and the RAM. First, when a keyword is input 21, the processing program determines whether or not the data group used in the program exists in the RAM based on the data identifiers shown in FIG. 4, among the data groups existing in the RAM. A determination 22 is made.

If it does not exist, the data group on the ROM is retrieved 25 and processed as usual. If a data group usable in the program exists on the RAM, the data status check 23 of the corresponding data group is performed. By this status check, when the data group on the ROM is newer than the data group on the RAM, the data on the RAM is not used and the data group on the ROM is searched and processed as usual. If the data group on RAM is newer,
The data group on the RAM is searched 24, and if data corresponding to the keyword exists, the process is performed.
Search and process the data group on M.

[0015]

According to the present invention, with the above-mentioned configuration, in addition to the data in the non-rewritable storage device that has been used conventionally, the data used in the portable information processing device 100 can be By storing the data supplied from another information processing device 108 in a rewritable storage device and using it, it is possible to supplement or update the data in the non-rewritable storage device. Become. As a result, it is possible to update data that has been changed since the data was created on the non-rewritable storage device and to correct incorrect data without replacing the data on the non-rewritable storage device. You can do it. Further, by partially modifying this patent, it is possible to change the processing of the program stored in the non-rewritable storage device.

[Brief description of drawings]

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

FIG. 2 is an algorithm of a data search method on a ROM according to a conventional method.

FIG. 3 is a ROM according to data on a RAM according to the present invention
It is a data search algorithm that supplements the above data.

4 is an example of an identifier for discriminating data added to the head of data on a RAM used in the algorithm shown in FIG.

FIG. 5 is a diagram showing a specific example of an identifier added to the beginning of data.

[Explanation of symbols]

 100 Portable Information Processing Device 101 CPU 102 Internal ROM 103 Internal RAM 104 External ROM 105 External RAM 106 Input / Output Interface 107 Display Device 108 Information Processing Device

Claims (1)

[Claims] 1. A rewritable storage device, a non-rewritable storage device, and a discriminating means for discriminating target data from a plurality of data stored in the rewritable storage device used in a program. And a determination means for determining whether the determined data is used or not, and the data on the rewritable storage device and the original data on the non-rewritable storage device are operated. A portable information processing device, which is provided with a means for using the data in a rewritable storage device and can change the data in the non-rewritable storage device by using the data in the rewritable storage device.