JPH06231190A - Electronic book display device - Google Patents

Abstract

PURPOSE:To provide independent resumes at every visitor, at every book and at every subtitle in the electronic book display device. CONSTITUTION:The storage address in a resume data storage means 6 retaining plural resume data is specified with using state data such as the name of a visitor, the name of a cook, and the name of a subtitle by a storage place computing means 7 as a key and the resume data are classified and stored according to the using state. At the time of reproduction, a resume data reproduction means 8 reads the resume data corresponding to the inputted using state data from the resume data storage means 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic book display device, and more particularly to an electronic book display device having a resume function corresponding to a "bookmark" used in a paper book or the like.

[0002]

2. Description of the Related Art Since publication in paper consumes a large amount of paper resources, the possibility of publication by electronic means has arisen from the standpoint of resource protection.

According to electronic means, free enlargement display of characters and figures, output by voice using a voice synthesizer, provision of free reading order by hypertext, etc.
It is also possible to provide many new features that are difficult with traditional paper books. Further, it is possible to pack more information in a medium having the same volume or the same weight as a book generally made of paper.

It is also possible to imitate the function of a paper book and further develop it. One of them is a resume function corresponding to a "bookmark" used in a book made of paper when the display content is finished reading. In order to realize the "bookmark" function, the resume data such as the current display page number and the current display magnification ratio of characters and figures are retained after the main power is turned off.
Resume data is automatically retained / reproduced, so
There is an added value that the user does not need to be aware of "pinching a bookmark".

Conventionally, in order to retain the above data after the main power supply is cut off, the following means have been taken.

For example, as disclosed in Japanese Unexamined Patent Publication No. 2-47771, when the main power-off request is generated, the power supply is stopped only to the CPU and the display device, and the power is supplied only to the RAM storing the data to be held. Data is backed up by supplying. After that, when the main power supply is connected, C
Power is supplied to the PU and the display device, and the state before power-off is reproduced by using the contents of the RAM that has been backed up.

[0007] As another conventional example, Japanese Patent Laid-Open No. 3-10
As shown in Japanese Patent Publication No. 3983, for example, there is one having a configuration as shown in FIG. 3 and performing a hold / reproduction operation of resume data with a disconnection request / connection of a main power supply as a trigger.

FIG. 3 is a block diagram showing a conventional example.
Referring to FIG. 3, this conventional example uses a floppy disk, a magneto-optical disk, a semiconductor card type memory, or the like,
A book information storage means 1 in which characters, figures, etc. are recorded, and a CR
Display means 2 for displaying characters, figures, etc. using T, LCD, etc. and display data read from the book information storage means 1 in page units and sent to the display means 2 using RAM etc., and the current state of the electronic book display device. And the resume data necessary for reproducing the current state of the electronic book display device, such as the page number currently displayed, the display magnification rate of characters and figures, and the like. Resume data calculation means 4, a RAM backed up by a separate power source, a secondary storage device such as a floppy disk, and the like, and a resume data storage means 10 for storing resume data. It is read from the resume data storage means 10, and the state of the electronic book display device immediately before the power is turned off is restored in the work storage means 3. Resume data reproduction means 1
1 and a control device (not shown) using a CPU or the like.

Next, the operation of the conventional example will be described with reference to FIG.

In the book information storage means 1, for example,
Characters, figures, and the like are recorded in a script (Post Script) format. The recorded information is read in page units into the working storage means 3 by program control, converted into image data, and supplied to the display means 2.

Further, it is possible to provide many functions such as changing the page to be displayed, retrieving contents, and changing the enlargement ratio of displayed characters / graphics by program control. The current states of these functions are stored in the working storage means 3.

In this way, the book information such as characters and figures is presented to the viewer.

The data holding operation of the resume function is performed as follows.

For example, the resume data calculation means 4 operating under program control reads data from the work storage means 3 containing the data to be stored, performs compression processing, etc., and backs up data such as RAM or a floppy disk. It is stored in the resume data storage means 10 using the next storage device. After the above operation is completed, the main power is actually cut off by program control or the like.

The data reproducing operation of the resume function is performed as follows.

For example, the resume data reproducing means 11 operating under program control reads the contents of the resume data storage means 10, performs compression and other processing, writes the data to the working storage means 3, and restores the state before power-off. Reproduce.

The bookmark function can also be used for power saving. In this case, in addition to turning on / off the power switch, if there is no key input for a certain period of time, the resume data is held and a main power-off request is issued, and if there is a key input after that, the resume data is reproduced. do it. This makes it possible to cope with forgetting to turn off the power of the electronic book display device due to the carelessness of the user.

[0018]

However, in the above-mentioned conventional apparatus, one set of the display page number for returning to the state immediately before the main power supply was cut off most recently, and the display enlargement ratio of characters and figures is set. Only the resume data of is saved. Further, even if a plurality of sets of resume data are stored, the resume data is only recorded sequentially in time, and when the electronic book display device is shared and used by a plurality of people, it is possible for each viewer to share it. If you cannot prepare separate bookmarks for each item, or if you have recorded multiple articles such as newspapers or magazines or textbooks for all subjects in one medium, you can use separate bookmarks for each article or subject. Can't prepare.

Further, in the case where the resume data is stored not in the electronic book medium but in the electronic book display device, when a plurality of electronic book media are browsed in parallel while suspending or resuming browsing, a plurality of electronic bookstores are displayed. Bookmarks cannot be prepared for each.

[0020]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to allow a plurality of people to browse a publication consisting of a plurality of independent articles such as newspaper magazines in parallel in time. However, it is to provide an independent "bookmark" for each. Further, even when it is necessary to store the resume data inside the electronic book display device, such as when a non-writable medium such as a CD-ROM is used as the electronic book medium, an independent “bookmark” is provided for each of the plurality of electronic book media. An object of the present invention is to provide an electronic book display device.

According to the present invention, in an electronic book display device for recording and reproducing and displaying characters and figures on an electronic book medium, a resume data calculating means for calculating a display position of a page number currently displayed and a viewer name. A usage status calculating means for calculating, a resume data storage means capable of retaining the contents even after the main power is turned off and recording a plurality of resume data, and an output content of the usage status calculating means,
The storage location calculation means for calculating the address in the resume data storage means for recording the contents output by the resume data calculation means, and the usage situation to be reproduced are selected, and the resume data recorded in the resume data storage means is selected. Resume data reproducing means for reading out and reproducing the state before power-off is provided.

According to the present invention, in an electronic book display device for recording and reproducing and displaying characters and figures on an electronic book medium, a resume data calculating means for calculating a display position of a page number currently displayed and a viewer name. A usage status calculation means for calculating, a resume data storage means capable of retaining the contents even after the main power is turned off and recording a plurality of combinations of resume data and usage status data, and a usage status to be reproduced are selected. And a resume data reproducing means for retrieving the usage status recorded in the resume data storage means, reading the corresponding resume data, and reproducing the state before the power is turned off.

According to the present invention, a book name for identifying a book on an electronic book medium, an article name in the case of being composed of a plurality of different articles such as newspapers and magazines, and one electronic book medium for all subjects. In an electronic book display device in which a subtitle such as “textbook name” when recording a textbook is stored, a resume data calculation unit for calculating the display position of the page number currently displayed, and a book currently browsed Name and subtitle, or usage status calculation means for calculating the reader name, book name, and subtitle, and the contents are retained even after the main power is turned off, and a plurality of combinations of resume data and usage data are recorded. Selectable resume data storage means and the usage status to be reproduced, the usage status recorded in the resume data storage means is searched, and the corresponding resume data is retrieved. Out look, it is characterized in that it comprises the resume data reproduction means for reproducing the power off previous state.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings.

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

Referring to FIG. 1, the first embodiment of the present invention has a configuration different from the conventional example shown in FIG. 3 in the following points.

In addition to the conventional structure, this embodiment uses a usage status calculation means 5 for calculating usage status data such as the name of a viewer who is currently browsing, and a usage status calculation means 5 which operates by program control. The resume data storage device 1 of the conventional example is provided with a storage location calculation means 7 for converting the information to be calculated into an address in the resume data storage means 6.
0, instead of the resume data reproduction device 11, a resume data storage means 6 for storing a plurality of resume data using a RAM backed up by another power source, a secondary storage device such as a floppy disk, and the like, operated by program control, Resume data matching the usage status selected by the viewer is stored in the resume data storage means 6
And a resume data reproducing means 8 for reproducing the state of the electronic book display device in the working storage means 3.

The resume data storage means 6 may store data in an empty area in the book information storage means 1.

Next, the operation of this embodiment will be described with reference to FIG. The operation is the same as the conventional example except for the holding / reproducing operation of the resume data function.

The data holding operation of the resume function will be described.

For example, when the power switch is turned off, or when there is no key input for operating the electronic book display device for a predetermined time, the data holding operation is started. Upon the start of the data holding operation, the resume data calculation means 4
Selects data necessary for reproducing the current state of the electronic book display device from the work storage means 3, performs processing such as compression, calculates resume data, and sends it to the resume data storage means 6.

On the other hand, the usage status calculating means 5 stores, for example, the name of the viewer previously input at the time of starting browsing, performs processing such as compression, calculates usage status data, and sends it to the storage location calculating means 7. .

The storage location calculation means 7 specifies the address in the resume data storage means 6 by means of a known hash method or the like using the usage status data as a key.

The resume data storage means 6 stores the resume data sent from the resume data calculation means 4 at the address specified by the storage location calculation means 7.

After the above operation is completed, the control unit cuts off the main power source.

Next, the data reproducing operation of the resume function will be described.

For example, when the power switch is turned on, or when there is a key input to operate the electronic book display device in the power-on state, the data reproducing operation is started. When the data reproducing operation is started, the resume data reproducing means 8 selects, for example, the usage status to be reproduced by the viewer, reads the resume data from the resume data storage means 6 at the address corresponding to the usage status, and compresses the resume data. Processing is performed to reproduce the state of the selected electronic book display device on the work storage unit 3.

The address in the resume data storage means 6 corresponding to the selected usage status is specified by inputting the usage status into the storage location calculation means 7.

After the above operation is completed, the working storage means 3
In accordance with the contents of, the book information storage means 1 is read into the work storage means 3 page by page, converted into image data and supplied to the display means 2, and the data reproduction operation of the resume function is completed.

Next, a second embodiment of the present invention will be described. Referring to FIG. 2, in the second embodiment of the present invention, the storage location calculating means 7 in the first embodiment shown in FIG. 1 does not exist, and the resume data is stored in the second resume data storing means 9. This is different from the first embodiment in that not only the output of the calculation means 4 but also the outputs of the usage status calculation means 5 are set as one set and stored sequentially in time.

Next, the resume data holding / reproducing operation of this embodiment will be described with reference to FIG.

Upon the start of the data holding operation, the resume data calculation means 4 selects the data necessary for reproducing the current state of the electronic book display device from the working storage means 3 and performs the processing such as compression. , Resume data is calculated and sent to the resume data storage means 9.

On the other hand, the usage status calculating means 5 stores, for example, the name of the viewer previously input at the start of browsing, performs processing such as compression, calculates usage status data, and sends it to the resume data storage means 9. .

The resume data storage means 9 is composed of, for example, a known one-way list, and the resume data sent from the resume data calculation means 4 to the addresses sequentially specified in time and the usage status calculation means 5 Stores the data set with the usage data sent from.

After the above operation is completed, it is the same as that of the first embodiment.

Upon the start of the data reproducing operation, the resume data reproducing means 8 searches the resume data storing means 9 for the use situation to be reproduced selected by the viewer, and reads the resume data corresponding to the use situation. Processing such as compression is performed to reproduce the state of the electronic book display device selected on the work storage unit 3.

After the above operation is completed, it is the same as that of the first embodiment.

In the first and second embodiments, the name of the viewer is used as the usage status data.
In the case of an e-book medium such as a book name or multiple different articles such as newspapers and magazines, the currently viewed subtitle such as the article name or subject name recorded in the e-book medium is used. You can also do it.

In this case, by starting the data holding operation,
The usage status calculating unit 5 reads the browsing time, the book title, and the subtitle that are currently being browsed from the working storage unit 3, performs processing such as compression, calculates usage status data, and stores the usage status data in the first embodiment. The calculation means 7 may be sent to the resume data storage means 9 in the second embodiment.

[0050]

As described above, the electronic book display device of the present invention is provided with the usage status calculating means for calculating usage status data such as the name of the viewer and the name of the article being viewed, and the page number currently displayed. Resume data to be retained can be stored / retrieved using the usage status data as a key, so that the resume data can be saved / reproduced independently for each usage status. is there.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of an electronic book display device according to the present invention.

FIG. 2 is a block diagram showing a second embodiment of the electronic book display device according to the present invention.

FIG. 3 is a block diagram illustrating a conventional electronic book display device.

[Explanation of symbols]

 1 Book Information Storage Means 2 Display Means 3 Work Storage Means 4 Resume Data Calculation Means 5 Usage Status Calculation Means 6 Resume Data Storage Means 7 Storage Location Calculation Means 8 Resume Data Reproduction Means 9 Resume Data Storage Means

Claims (3)

[Claims] 1. An electronic book display device for recording and reproducing and displaying characters and figures on an electronic book medium, and resume data calculating means for calculating a display location of a page number currently displayed, and a viewer name. A usage status calculation means, a resume data storage means capable of retaining the contents even after the main power is turned off and recording a plurality of resume data; and an output of the resume data calculation means according to the output content of the usage status calculation means. A storage location calculating means for calculating an address in the resume data storage means for recording the contents to be read, and a use condition to be reproduced is selected, and the resume data recorded in the resume data storage means is read out,
An electronic book display device comprising: resume data reproducing means for reproducing a state before power-off. 2. In an electronic book display device for recording and reproducing and displaying characters and figures on an electronic book medium, a resume data calculating means for calculating a display location of a page number currently displayed, and a viewer name. Usage status calculation means, resume data storage means that retains the contents even after the main power is turned off and can record a plurality of combinations of resume data and usage status data, and the usage status to be reproduced is selected, An electronic book display device, comprising: a resume data reproducing means for retrieving the usage status recorded in the resume data storage means, reading the corresponding resume data, and reproducing the state before power-off. 3. An electronic book medium includes a book name for identifying a book, an article name when a plurality of different articles such as newspapers and magazines are included, and textbooks for all subjects in one electronic book medium. In an electronic book display device in which a subtitle such as “subject name” when recording is stored, a resume data calculation unit that calculates the display location of the page number currently displayed, and a book name currently being viewed and A usage status calculating means for calculating a subtitle, or a viewer name, a book title, and a subtitle, and content that is retained even after the main power is turned off, and a plurality of combinations of resume data and usage data can be recorded. The possible resume data storage means and the usage status to be reproduced are selected, the usage status recorded in the resume data storage means is searched, and the corresponding resume data is read out. Te, electronic book display apparatus characterized by comprising the resume data reproduction means for reproducing the power off previous state.