JPH01261781A - Electronic filing device - Google Patents

Abstract

PURPOSE:To rapidly switch a display screen after manual input by storing the information of a page corresponding to an manual input to be newly inputted in a temporary storage means consisting of a rapid memory element. CONSTITUTION:The electronic filing device is provided with the temporary storage means 8 consisting of the rapid memory element for storing the information of an adjacent page continued before or after a display part independently of a storage part 5 for storing large quantity of information, especially image information. When the display of the adjacent page is specified, the contents of the means 8 are rapidly displayed as an image, and at the time of the next specification, a proposed page is read out of the storage part 5. Consequently, rapid page turning can be attained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is applied to an electronic filing device that stores and displays a large amount of information including documents and figures.

In particular, it relates to "page turning" which switches information on a displayed page to information on the previous and subsequent pages.

〔overview〕

The present invention provides an electronic filing device that is equipped with a means for switching currently displayed information to information on the previous or next page in response to manual input, in which information on a page corresponding to manual input that is expected to be newly input is stored in a high-speed memory. By storing the information in a temporary storage means using an element, the display screen can be quickly switched after manual input.

[Conventional technology]

FIG. 4 is a block diagram of a conventional electronic filing device that displays image information.

In this electronic filing device, a "page turning key" is provided on the keyboard to switch the image information of the page displayed on the display section 7 to the image information of the previous or next page.
That is, a previous page key 1 and a next page key 2 are provided. When these keys are pressed, the signal is notified to the readout control section 4 via the control section 3. The read control unit 4 reads image information of a page to be displayed from an image storage unit 5 using an optical disk or other mass storage device, and outputs this image information to the display control unit 6. The display control unit 6 displays the image information on the display unit 7.

FIG. 5 shows an operation time chart of this conventional device.

The time Tm from when the page turning key is pressed until the display of image information starts is the preprocessing time t by the control unit 3.
0, the processing time t by the readout control section 4, and a part of the display time tc by the display control section 6 and the display section 7. This is the sum of

[Problem that the invention seeks to solve]

In conventional electronic filing devices, in order to display the image information of the previous or next page of the currently displayed page, it is determined whether to display the previous page or the next page after inputting a page turning key from the keyboard. are doing. Therefore, after pressing the key, it is necessary for the readout control section 4 to read out the image information from the image storage section 5. Here, the access speed of the image storage section 5 becomes a problem. A large-capacity storage device such as an optical disk device is used as the image storage unit 5, but such a storage device generally has a slow access speed. For this reason, there is a drawback that it takes a long time to start displaying an image after pressing a key.

An object of the present invention is to solve the above problems and provide an electronic filing device that can turn pages at high speed.

[Means for solving problems]

The electronic filing device of the present invention includes, in addition to a storage section that stores a large amount of information, particularly image information, a temporary storage means using a high-speed memory element that stores information on adjacent pages before or after the currently displayed page. It is characterized by

[For production]

The electronic filing device of the present invention, when specified to display an adjacent page before or after the currently displayed page, displays the contents of the time storage means as an image at high speed, and at the same time displays the contents of the next specified page as an image. The page that is expected to be the same is read out from the storage section. This enables high-speed page turning.

〔Example〕

FIG. 1 is a block diagram of an electronic filing device according to an embodiment of the present invention. In this embodiment, the present invention is implemented in an apparatus for storing and displaying image information.

This embodiment device includes an image storage section 5 that stores image information divided into pages, a readout control section 4 that reads out image information page by page from the image storage section 5, and a readout control section 4 that reads image information page by page from the image storage section 5. Display means for displaying an image for each page, that is, a display control section 6 and a display section 7, and a page control means for switching image information displayed by the display section 7 to image information for the previous or next page in accordance with manual input, that is, a previous page. It includes a page key 1, a next page key 2, and a control section 3.

A temporary storage unit 8 is connected to the readout control unit 4 and stores image information of an adjacent page before or after the page being displayed.

As the image storage unit 5, a large capacity storage device, for example, an optical disk device is used. Moreover, as the - hour storage section 8,
Use relatively fast random access memory.

FIG. 2 shows the control flow of this device. However, the termination process has been omitted.

When a file name to be displayed is input from the keyboard, the read control section 4 reads out the image information of the first page from the desired file from the image storage section 5 under the control of the control section 3 and outputs it to the display control section 6 . The display control section 6 displays this image information on the display section 7 as an image. Read control unit 4
Also, during the image display operation by the display control section 6, the image information of the second page is read out, and this image information is stored in the temporary storage section 8.

When the next page key 2 is pressed in this state, the readout control section 4 outputs the image information of the second page stored in the - hour storage section 8 to the display control section 6, and the display control section 6 While performing the image display operation for the image information of the page, the image information of the third page is read from the image storage section 5, and the storage contents of the temporary storage section 8 are updated with this information.

This process is repeated every time next page key 2 is pressed, and
When displaying the image information of a page, the image information of the (n+1)th page is read out from the image storage section 5 and stored in the temporary storage section 8.

When the previous page key 1 is pressed while the image information of the first page is displayed by pressing the next page key 2, the reading control unit 4
The image information of the (n-1)th page is read from the image storage section 5 and outputted to the display control section 6. Subsequently, the readout control section 4 reads out the image information of the n-2th page during the image display operation by the display control section 6, and stores this image information in the temporary storage section 8.

When the previous page key I is pressed in this state, the readout control section 4 outputs the image information of the n-2th page stored in the - hour storage section 8 to the display control section 6, and the display control section 6 While the image display operation is being performed for the image information on the (n-2)th page, the image information on the (n-3)th page is read out from the image storage section 5, and the storage contents of the temporary storage section 8 are updated with this information.

Repeat this process every time the previous page key l is pressed, and
When displaying the image information of a page, the image information of the (n-1)th page is read out from the image storage section 5 and stored in the temporary storage section 8.

When the next page key 2 is pressed while the image information of the first page is displayed by pressing the previous page key 1, the readout control unit 4
The image information of the (n+1)th page is read out from the image storage section 5 and outputted to the display control section 6, and subsequently the image information of the (n+2)th page is read out and stored in the -time storage section 8.

FIG. 3 shows an operation time chart of the embodiment apparatus.

In the case of this embodiment device, when the same page turning key is pressed, the time TA from the key press to the start of display of image information is determined by the preprocessing to° by the control unit 3 and the display control unit 6 and the display unit. Part of the display time tc according to 7 1. Compared to the conventional example, the time required for reading out the image storage section 5 is reduced by the time t.

Although the above embodiments have been described using an example of a device that stores and displays image information, the present invention can be implemented in a similar manner with a device that stores text information and other information.

Furthermore, although the configuration is such that image information for one adjacent page is stored in a high-speed memory, the present invention can be similarly implemented with a configuration that stores information for a plurality of adjacent pages.

〔Effect of the invention〕

As explained above, the electronic filing device of the present invention transfers image information that is expected to be newly specified from the low-speed, large-capacity image storage section to the high-speed temporary storage section in parallel with the image display operation. put. Therefore, there is an effect that the time required for page turning is significantly shortened.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an electronic filing device according to an embodiment of the present invention. FIG. 2 is a diagram showing the control flow of the embodiment device. FIG. 3 is a time chart of the embodiment device. FIG. 4 is a block diagram of a conventional electronic filing device. FIG. 5 is a time chart of a conventional device. DESCRIPTION OF SYMBOLS 1...Previous page key, 2...Next page key, 3...Control unit, 4...Reading control unit, 5...Image storage unit, 6...
. . . Display control section, 7 . . . Display section, 8 . . . - hour storage section.

Claims (1)

[Scope of Claims] 1. A storage unit that stores information divided into pages, a reading unit that reads information page by page from the storage unit, and a display unit that displays images of the read information page by page. and page control means for switching the information displayed by the display means to the information on the previous or next page in accordance with manual input, the reading means is configured to display information on the previous or next page of the page being displayed. 1. An electronic filing device comprising temporary storage means using a high speed memory element for storing information of adjacent pages of the electronic filing device.