JPH088850A - Wireless ebook system - Google Patents

Abstract

(57) [Summary] [Structure] The book information is broadcast by time-division multiplexing the information of a plurality of books and encrypting the information. When the electronic book device selects a program to be received from the program information, the electronic book device transmits the ID of the selected information and the ID of the electronic book device to the management center.
After performing the billing process, the management center returns key information for decrypting the encrypted book information. The electronic book device decrypts the book information with the key information and displays it on the display device. [Effect] It is possible to realize an electronic book system that provides information desired by a user anytime / anywhere / at an appropriate price.
Further, by performing the billing process, the contents of the broadcast information cannot be viewed unless the decryption key is received, so that the information can be prevented from being read out illegally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless electronic book system for providing digitized character information and music information to an individual by a wireless system.

[0002]

2. Description of the Related Art Instead of providing information to individuals by books, it has been proposed to provide digitized character information to individuals by a viewer typified by an electronic book device. As this electronic book device, a device using a medium such as a floppy disk has been commercialized. Further, for example, Japanese Patent Laid-Open No. 1-94382 proposes a device that provides information by using a memory card or the like.

[0003]

However, in the conventional electronic book system that uses a package-type medium such as a floppy disk or a memory card, the user needs to purchase the floppy disk or the memory card, and It is difficult to provide a system where anyone / any information can be obtained.

An object of the present invention is to provide an electronic book system capable of obtaining information desired by a user anytime / anywhere / at an appropriate fee.

[0005]

In order to achieve the above object, the present invention provides a first transmitting means for broadcasting book information and a first transmitting means for receiving the information transmitted from the first transmitting means. No. 1 receiving means, a display device for displaying the information obtained from the first receiving means, a selecting means for selecting a program to be received from the program information received by the first receiving means, and an ID of the selected information is transmitted. The second transmitting means, the second receiving means for receiving the ID information sent by the second transmitting means, the charging means for charging according to the contents received by the second receiving means, and after charging. Third transmitting means for transmitting key information for decrypting the encrypted book information;
Third receiving means for receiving the key information sent by the sending means, and the book information obtained by the first receiving means is decoded by the key information obtained by the third receiving means and displayed on the display device. A wireless electronic book system is constructed from the decoder and the decoder.

[0006]

From the first transmitting means of the broadcasting center for broadcasting book information, information of a plurality of books is time-division multiplexed, encrypted and broadcast. Further, the information on the broadcast start time of each book is added to the information on the book broadcast from the first broadcasting means without being encrypted. The information transmitted from the first broadcasting means is received by the first receiving means provided in the electronic book device. The information obtained from the first receiving means is displayed on the display device. When the selecting means selects a program to be received from the program information received by the first receiving means, the ID of the selected information and the ID of the electronic book device in use are transmitted to the management center by the second transmitting means. It In the management center, the ID information sent by the second transmitting means is received by the second receiving means, and the fee is charged according to the content received by the second receiving means. After performing the charging process, the management center transmits the key information for decrypting the encrypted book information by the third transmitting means. The key information sent by the third sending means is received by the third receiving means provided in the electronic book device. The decoder decodes the book information obtained from the first receiving means by the key information obtained by the third receiving means and displays it on the display device. This allows you to
It is possible to realize an electronic book system that provides information desired by users at an appropriate price. Also, unless the decryption key is received by performing the billing process, the contents of the broadcast information cannot be viewed, so that the information can be prevented from being read out illegally.

[0007]

【Example】

<First Embodiment> FIG. 1 is a block diagram of an electronic book system according to a first embodiment of the present invention. In the figure, 101 is a first transmitting means, 102 is a first receiving means, 103 is a display device, 104 is a selecting means, 105 is a second transmitting means, 10
6 is the second receiving means, 107 is the charging means, and 108 is the third
, 109 is a third receiving means, 110 is a decoder, and 201 is an electronic book device.

The first transmitting means 101 broadcasts various kinds of electronic book information and music information using a medium such as radio waves or light. The electronic book device 201 receives this broadcast information and presents it to the user.

FIG. 2 shows the concept of the entire electronic book system according to this embodiment and second to seventh embodiments described later.
In the figure, 202 is a broadcasting center, 203 is a management center,
Reference numeral 204 is a charging database. Broadcast Center 202
The information transmitted by the first transmission means 101 from is used in the electronic book device 201. When using information,
The electronic book device 201 sends the ID of the information to be used and the ID of the electronic book device 201 or the user's ID to the management center 203, and the management center 203 performs the charging process using the charging database 204, thereby broadcasting. To be able to receive and use the information being provided.

Since newspapers and magazines have a large amount of information and the number of copies is several million, it is more rational to send them in the form of broadcasting than sending them individually even when they are sent by radio waves. However, regarding charging, it is necessary to handle each user individually. Therefore, information about books such as newspapers and magazines, which have a large amount of information and a large number of circulations, is sent in a batch in the form of broadcasting, and the amount of information that is small but needs to be handled individually is handled by digital cellular systems, etc. The wireless communication method is used to individually communicate with the management center.

Here, as the information transmitted from the broadcasting center 202, for example, as shown in FIG. 3, information of many books is transmitted in a time division manner. For example, if it is assumed that 1M bit data can be sent per second, the information amount of one magazine is 1M.
As a byte, it will be possible to send the information for one book in 8 seconds.

Program information is added to the broadcast information at regular intervals. As the program information, for example, as shown in FIG. 4, contents of information to be broadcast (for example, information name and information ID), and a table of broadcasting start time and broadcasting time length are transmitted. As described above, in the program information, the broadcast start time and the length of the information broadcast within a fixed time are recorded, but when a large amount of request information from the user is sent to the management center 203. Can increase the number of broadcasts after a certain period of time, and if not, reduce the number of broadcasts after a certain period of time and reassemble into new program information.

In FIG. 1, the information broadcast from the first transmitting means 101 is received by the first information means 102 provided in the electronic book device 201. Of the received information, the information not particularly encrypted and the program information are displayed on the display device 103 as they are. FIG. 5 shows a display example of the display device 103 of the electronic book device 201.
As shown in the figure, the user designates the information to be read by the selecting means 104 from the displayed program information.

When the information to be read is selected by the selecting means 104, the ID number of the information to be read and the electronic book device 20.
The ID number of the electronic book device 201 recorded inside 1 is transmitted from the second transmitting unit 105 to the management center 203. The second transmitting means 105 sends the ID information for individual billing, so that the transfer rate is small and can be realized by a communication system such as a digital cellular system.

The management center 203 is the second receiving means 1.
06, a charging means 107, and a third transmitting means 108 are provided, and a fee is charged to anyone from the ID information obtained by the second receiving means 106 and the ID information of the user or the electronic book device 201. Whether or not the billing process is performed.
As a billing process, a method of debiting the user's bank account, a method of sending a bill to the user later to prompt payment, etc. can be considered.

After the charging process is completed, the management center 20
The third sending means 108 sends the key information for reading information to the electronic book device 201 by the third sending means 108. As a matter of course, the management center 203 is assumed to have key information for decryption for each piece of broadcast information. The electronic book device 201 is the third receiving device 1.
09, the key information is received, and the key information is set in the decoder 110. The decoder 110 includes the first receiving device 10
Waiting for the desired information to arrive at 2, and when the information is received, it is decrypted and the information is displayed by the display means 103.

Although various methods are conceivable as the encryption method, the simplest example will be given for explanation. For example, by keying a random bit pattern of 1 byte,
XO with key pattern for each byte of information to be broadcast
Take R (exclusive OR). In this case, the decoder 110
XO again with the key pattern for the received information
By taking R, the original information can be obtained by decoding.

FIG. 6 shows the hardware configuration of the electronic book device 201. In FIG. 6, the same components as those in FIG. 1 are designated by the same reference numerals. In the figure, 601 is CP
U, 602 is a RAM, and 603 is a ROM.

The CPU 601 is composed of an integrated circuit called a microprocessor, and controls each function of the electronic book device 201. The RAM 602 is a readable / writable memory and is used to store information temporarily used by the CPU 601. The RAM 602 stores the first
The information received by the receiving means 102 is also stored. ROM
Reference numeral 603 is a non-rewritable memory. ROM6
A program for controlling the CPU 601 is stored in 03. The ROM 603 is also used to store character font information for displaying and the ID number of the electronic book device 201. The selection unit 104 displays a menu or the like on the display device 103 and confirms which menu the user has selected from the input device using the buttons or keys, thereby performing the desired input of the user. Each device is connected to the CPU 601 via a data bus, and data is exchanged between the devices based on the control of the CPU 601.
Realize the function of.

When the user requests a specialized book such as a specialized book, it is not rational to broadcast it from the broadcasting center 202. Therefore, even if it takes some time, the management center 203 will broadcast it. It is also possible to individually send by a direct one-to-one wireless communication system such as digital cellular.

<Second Embodiment> FIG. 7 is a block diagram of an electronic book system according to a second embodiment of the present invention. In FIG. 7, components equivalent to those of the first embodiment of FIG. 1 are the same. The numbers are attached and the explanation is omitted to avoid duplication. In the figure,
701 is a first storage device, 702 is an external storage device, 70
Reference numeral 3 is a storage medium.

The first storage device 701 temporarily stores the information received from the first receiving means 102. The external storage device 702 records the information stored in the first storage device 701 in the storage medium 703. The storage medium 703 is
For example, it is a storage medium represented by a floppy disk, an optical disk, an IC card, etc., and is a removable storage medium.

FIG. 8 shows an external view of the electronic book apparatus of this embodiment. The storage medium 703 can be set in or removed from the electronic book device 201 by inserting / removing the storage medium 703 into / from the insertion port of the external storage device 702 provided in the electronic book device 201.

In FIG. 7, the first broadcast center 202 is shown.
The information broadcast from the transmitting means 101 is received by the first information means 102 provided in the electronic book device 201. The received information is temporarily stored in the first storage device 701 for the time being. In the present embodiment, the information stored in the first storage device 701 is not particularly encrypted, and the program information selected by the selection means 104 is displayed on the display device 103 as it is. ing.

When it is desired to leave the information stored in the first storage device 701 in the storage medium 703 as a copy, the selection means 104 selects the information to be copied. When the information to be duplicated is selected, the ID number of the selected information and the electronic book device 201 recorded in the electronic book device 201 are selected.
And the ID number thereof are transmitted to the management center 203 by the second transmitting means 105.

The management center 203 is provided with a second receiving means 106, a charging means 107, and a third transmitting means 108. The ID of the information obtained by the second receiving means 106 and the user or the electronic book. From the ID of the device 201, it is determined who and how much to charge, and the charging process is performed.
After the charging process is completed, the management center 203 sends the information duplication permission information to the electronic book device 201 by the third sending unit 108.

The electronic book device 201 receives the permission information by the third receiving device 109, and the external storage device 70
Give permission information to 2. Then, the external storage device 702
When the permission information is obtained, records the information stored in the first storage device 701 in the storage medium 703.

Although the hardware configuration of the electronic book device 201 of the present embodiment is not particularly shown, the decoder 110 is deleted from the configuration of FIG. 6 of the first embodiment.
The information received by the first receiving means 10 is stored in the RAM 602 in this embodiment, and the RAM 602 is
Functions as the first storage device 701 in FIG. 7.

When a copy of the information in the first storage device 701 is recorded in the external storage device 702, a specific bit pattern is prepared as the copy permission information, and the CPU 601 described above makes the third This can be realized by recording the copy by receiving the bit pattern from the receiving unit 109 of.

<Third Embodiment> FIG. 9 is a block diagram of an electronic book system according to a third embodiment of the present invention. In FIG. 9, the first embodiment of FIG. 1 and the second embodiment of FIG. The same numbers are given to the components equivalent to and the description thereof is omitted to avoid duplication.

This embodiment has the configuration of the first embodiment shown in FIG.
The first storage device 701 in the second embodiment of FIG.
An external storage device 702 and a storage medium 703 are added.

As in the above embodiments, the broadcasting center 20
The first transmitting means 101 of No. 2 broadcasts various kinds of digitized book information, music information and the like using a medium such as radio waves or light. The electronic book device 201 receives this broadcast information and presents it to the user.

In FIG. 9, the information broadcast from the first transmitting means 101 is received by the first receiving means 102 provided in the electronic book device 201. In this embodiment, it is assumed that the signal broadcast from the first transmission means 101 is partially encrypted. The information received is the first
Although not stored in the storage device 701, the information not particularly encrypted and the program information are displayed on the display device 103 as they are.

When the information to be read is selected by the selection means 104, the ID number of the information to be read and the electronic book device 20.
The ID number of the electronic book device 201 recorded inside 1 is stored in the management center 203 by the second transmitting means 105.
Sent to. At the management center 203, after the charging process is completed, the key information for reading the information is sent to the electronic book device 201 by the third sending means 108. The electronic book device 201 receives the key information by the third receiving unit 109 and sets the key information in the decoder 110. The decoder 110 comprises the first receiving means 1
Waiting for the target information to arrive at 02, when the information is received, it is decrypted and the information is displayed by the display means 103.

When it is desired to leave the information stored in the first storage device 701 as a copy in the storage medium 703, when the information to be copied is selected by the selection means 104, the ID number of the selected information and The ID number of the electronic book device 201 recorded inside the electronic book device 201 is transmitted to the management center 203 by the second transmitting unit 105.

The management center 203 is provided with a second receiving means 106, a charging means 107, and a third transmitting means 108. The ID of the information obtained by the second receiving means 106 and the user or the electronic book. From the ID of the device 201, it is determined who and how much to charge, and the charging process is performed.
After the charging process is completed, the management center 203 sends the information duplication permission information to the electronic book device 201 by the third sending unit 108.

The electronic book device 201 receives the permission information by the third receiving means 109, and the external storage device 702.
Give permission information to. When the external storage device 702 obtains the permission information, the external storage device 702 replaces the information stored in the first storage device 701 with
It is recorded in the storage medium 703.

FIG. 10 shows the hardware configuration of the electronic book device 201 in this embodiment. In FIG. 10, the electronic book device of the first embodiment of FIG. 6 and the equivalent components to those of FIG. 9 are the same. They are numbered and their explanations are omitted to avoid duplication. In the configuration of FIG. 10, an external storage device 702 is added to the configuration of FIG. 6 described above. The RAM 602 stores the information received by the first receiving means 102, and the RAM 602 is configured as shown in FIG. Of the first storage device 701.

<Fourth Embodiment> FIG. 11 is a block diagram of an electronic book system according to a fourth embodiment of the present invention. In FIG. 11, components equivalent to those in the above-mentioned respective embodiments are designated by the same reference numerals. However, the explanation is omitted to avoid duplication. 8 in the figure
01 is the fourth transmitting means, 802 is the fourth receiving means, 80
3 is a second storage device, 804 is a fifth transmission means, and 805
Indicates fifth receiving means. In this embodiment, an external storage device (802, 803) that can be interfaced wirelessly is provided in order to satisfy the demand for collecting information as a library at hand even in a wireless electronic book system.
804) is used.

In FIG. 11, the information broadcast from the first transmitting means 101 of the broadcasting center 202 is received by the first receiving means 102 provided in the electronic book device 201. The information received by the first receiving means 102 is temporarily stored in the first storage device 701 for the time being. In this embodiment, the information stored in the first storage device 701 is
The program information selected by the selecting means 104 is not particularly encrypted, and is displayed on the display device 103 as it is.

When it is desired to leave the information stored in the first storage device 701 as a copy in the storage medium 803, the information to be copied is selected by the selection means 104. When the information to be duplicated is selected, the ID number of the selected information and the electronic book device 201 recorded in the electronic book device 201 are selected.
And the ID number thereof are transmitted to the management center 203 by the second transmitting means 105.

The management center 203 is provided with a second receiving means 106, a charging means 107, and a third transmitting means 108. The ID of the information obtained by the second receiving means 106 and the user or the electronic book. From the ID of the device 201, it is determined who and how much to charge, and the charging process is performed.
After the charging process is completed, the management center 203 sends the information duplication permission information to the electronic book 201 by the third sending unit 108.

In the electronic book device 201, the third receiving means 109 receives the permission information, and the fourth transmitting means 80.
The permission information is given to 1. Upon obtaining the permission information, the fourth transmission unit 801 transmits the information stored in the first storage device 701 to the fourth reception unit 802.

The information transmitted from the fourth transmitting means 801 is received by the fourth receiving means 802 and recorded in the second storage device 803. This second storage device 803 is
It is a large-capacity storage medium such as an optical disk or a hard disk, and can store information as a personal library.

In the case of reproducing information from the second storage device 803, if the reproducing means is instructed by the selecting means 104,
A reproduction command is transmitted from the fourth transmission unit 801. Fourth
When receiving the reproduction request, the reception unit 802 reproduces the information from the second storage device 803, and the fifth transmission unit 804.
Send from The information transmitted by the fifth transmission unit 804 is received by the fifth reception unit 805, stored in the first storage device 701, and displayed on the display device 103.

<Fifth Embodiment> FIG. 12 is a block diagram of an electronic book system according to the fifth embodiment of the present invention. In FIG. 12, components equivalent to those in the above-mentioned embodiments are designated by the same reference numerals. However, the explanation is omitted to avoid duplication.

In this embodiment, a decoder 110 is added to the structure of the fourth embodiment shown in FIG. 11 (a structure in which a wireless external storage device is added to the electronic book device).

As in the above embodiments, the broadcasting center 20
The first transmitting means 101 of No. 2 broadcasts various kinds of digitized book information, music information and the like using a medium such as radio waves or light. The electronic book device 201 receives this broadcast information and presents it to the user.

In FIG. 12, the information broadcast from the first transmitting means 101 is received by the first information means 102 provided in the electronic book device 201. In this embodiment, it is assumed that the signal broadcast from the first transmission means 101 is partially encrypted. Information received is first
Although not stored in the storage device 701, the information not particularly encrypted and the program information are displayed on the display device 103 as they are.

When the information desired to be read is selected by the selection means 104, the ID number of the information desired to be read and the electronic book device 20.
The ID number of the electronic book device 201 recorded inside 1 is stored in the management center 203 by the second transmitting means 105.
Sent to. At the management center 203, after the charging process is completed, the key information for reading the information is sent to the electronic book device 201 by the third sending means 108. The electronic book device 201 receives the key information by the third receiving unit 109 and sets the key information in the decoder 110. The decoder 110 comprises the first receiving means 1
Waiting for the target information to arrive at 02, when the information is received, it is decrypted and the information is displayed by the display means 103.

When it is desired to leave the information stored in the first storage device 701 as a duplicate in the second storage device 803, when the information to be duplicated is selected by the selecting means 104,
The ID number of the selected information and the ID number of the electronic book device 201 recorded inside the electronic book device 201 are
It is transmitted to the management center 203 by the second transmitting means 105.

The management center 203 is provided with a second receiving means 106, a charging means 107, and a third transmitting means 108. The ID of the information obtained by the second receiving means 106 and the user or the electronic book. From the ID of the device 201, it is determined who and how much to charge, and the charging process is performed.
After the charging process is completed, the management center 203 sends the information duplication permission information to the electronic book device 201 by the third sending unit 108.

In the electronic book device 201, the third receiving means 109 receives the permission information, and the fourth transmitting means 8 receives the permission information.
The permission information is given to 01. Upon obtaining the permission information, the fourth transmission unit 801 transmits the information stored in the first storage device 701 to the fourth reception unit 802. The information transmitted from the fourth transmitting means 801 is the fourth receiving means 802.
And is recorded in the second storage device 803. Further, regarding the reproduction of the second storage device 803, the same procedure as in the case of the fourth embodiment of FIG. 11 is performed.

<Sixth Embodiment> FIG. 13 is a block diagram of an electronic book system according to the sixth embodiment of the present invention. In FIG. 13, components equivalent to those in the above-mentioned embodiments are designated by the same reference numerals. However, the explanation is omitted to avoid duplication.

In this embodiment, the function of the fourth transmitting means 801 in the fourth embodiment of FIG.
And the fifth receiving means 805 in the fourth embodiment.
The third receiving means 109 is provided with the above function.

In FIG. 13, the information broadcast from the first transmitting means 101 of the broadcasting center 202 is received by the first receiving means 102 provided in the electronic book device 201. The received information is temporarily stored in the first storage device 70.
1 is temporarily stored. In the present embodiment, the information stored in the first storage device 701 is not particularly encrypted, and the program information selected by the selection means 104 is displayed on the display device 103 as it is. ing.

When it is desired to leave the information stored in the first storage device 701 as a copy in the second storage device 803,
The selection unit 104 selects the information to be duplicated. When the information you want to copy is selected, the ID number of the selected information and
The ID number of the electronic book device recorded inside the electronic book device 201 is transmitted to the management center 203 by the second transmitting unit 105.

The management center 203 is provided with a second receiving means 106, a charging means 107, and a third transmitting means 108. The ID of the information obtained by the second receiving means 106 and the user or the electronic book. From the ID of the device 201, it is determined who and how much to charge, and the charging process is performed.
After the charging process is completed, the management center 203 sends the information duplication permission information to the electronic book device 201 by the third sending unit 108.

In the electronic book device 201, the third receiving means 109 receives the permission information and the second transmitting means 1 receives the permission information.
The permission information is given to 05. Upon obtaining the permission information, the second transmitting unit 105 transmits the information stored in the first storage device 701 to the fourth receiving unit 802. The information transmitted from the second transmitting means 105 is the fourth receiving means 802.
And is recorded in the second storage device 803. The second storage device 803 is a large-capacity storage medium such as an optical disk or a hard disk, and can store information as a personal library.

In the case of reproducing information from the second storage device 803, when the reproducing of information is instructed by the selecting means 104,
A reproduction command is transmitted from the second transmission unit 105. Fourth
When receiving the request for reproduction, the receiving means 802 reproduces the information from the second storage device 803, and the fourth transmitting means 804.
Send from The information transmitted by the fourth transmitting unit 804 is received by the third receiving unit 109, stored in the first storage device 701, and displayed on the display device 103.

<Seventh Embodiment> FIG. 14 is a block diagram of an electronic book system according to a seventh embodiment of the present invention. In FIG. 14, components equivalent to those in the above embodiments are designated by the same reference numerals. However, the explanation is omitted to avoid duplication.

In this embodiment, the function of the fourth transmitting means 801 in the fifth embodiment of FIG.
And the fifth receiving means 805 in the fourth embodiment.
The third receiving means 109 is provided with the above function.

In FIG. 14, the information broadcast from the first transmitting means 101 of the broadcasting center 202 is received by the first receiving means 102 provided in the electronic book device 201. In this embodiment, the first transmission means 10
It is assumed that the signal broadcast from 1 is partially encrypted. The received information is stored in the first storage device 701. Among the information, the information not particularly encrypted and the program information are displayed on the display device 103 as they are.

When the information to be read is selected by the selection means 104, the ID number of the information to be read and the electronic book device 20
The ID number of the electronic book device 201 recorded inside 1 is stored in the management center 203 by the second transmitting means 105.
Sent to. At the management center 203, after the charging process is completed, the key information for reading the information is sent to the electronic book device 201 by the third sending means 108. The electronic book device 201 receives the key information by the third receiving means 109 and sets the key information in the decoder 110. The decoder 110 waits for the intended information to arrive at the first receiving means 102, performs decoding when receiving the information, and displays the information on the display means 103.

When it is desired to leave the information stored in the first storage device 701 as a duplicate in the second storage device 803, when the information to be duplicated is selected by the selecting means 104,
The ID number of the selected information and the ID number of the electronic book device 201 recorded inside the electronic book device 201 are
It is transmitted to the management center 203 by the second transmitting means 105.

The management center 203 is provided with a second receiving means 106, a charging means 107, and a third transmitting means 108. The ID of the information obtained by the second receiving means and the user or electronic book device. From the ID of 201, it is determined who to charge and how much to charge. After the charging process is completed, the management center 203 sends the information duplication permission information to the electronic book device 201 by the third sending unit 108.

In the electronic book device 201, the third receiving device 109 receives the permission information and the second transmitting means 1 receives the permission information.
The permission information is given to 05. Upon obtaining the permission information, the second transmitting unit 105 transmits the information stored in the first storage device 701 to the fourth receiving unit 802. The information transmitted from the second transmitting means 105 is the fourth receiving means 802.
And is recorded in the second storage device 803. Further, regarding the reproduction of the second storage device 803, the same procedure as in the case of the sixth embodiment of FIG. 13 is performed.

<Eighth Embodiment> FIG. 15 is an explanatory view showing the outline of an electronic book system according to an eighth embodiment of the present invention. In FIG. 15, the same numbers are given to the components equivalent to those in FIG. The explanation is omitted to avoid duplication. In the figure, 901 is a CATV broadcasting center.

In this embodiment, instead of the broadcasting center 202 described in FIG. 2, a cable television broadcasting means (CATV broadcasting center 901) is used as broadcasting means. In the case of a cable television, it is necessary to connect a cable as compared with the wireless system, but since the transfer rate is high, it is possible to send information in a short time. In this case, the electronic book device 201 and the management center 203 may communicate with each other by using a wireless system such as a digital cellular system or a communication system using a telephone line.

[0070]

As described above, according to the present invention, it is possible to realize a wireless electronic book system capable of providing desired information anytime / anywhere / anytime by the wireless system. Further, since the fee can be charged for each information, the user can obtain the information at an appropriate fee. Furthermore, if the information is encrypted and sent, unauthorized reading can be prevented, and a fee can be collected every time the information is copied, so that the information provider can certainly collect the fee, which enables reliable business development.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an electronic book system according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an outline of electronic book systems according to first to seventh embodiments of the present invention.

FIG. 3 is an explanatory diagram showing an example of contents of information used in an embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an example of program information used in an embodiment of the present invention.

FIG. 5 is an explanatory diagram showing an example of a display screen according to an embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a hardware configuration of the electronic book device according to the first embodiment of the present invention.

FIG. 7 is a configuration diagram of an electronic book system according to a second embodiment of the present invention.

FIG. 8 is an explanatory diagram showing an example of an external appearance of an electronic book device according to a second embodiment of the present invention.

FIG. 9 is a configuration diagram of an electronic book system according to a third embodiment of the present invention.

FIG. 10 is an explanatory diagram showing a hardware configuration of an electronic book device according to a third embodiment of the present invention.

FIG. 11 is a configuration diagram of an electronic book system according to a fourth embodiment of the present invention.

FIG. 12 is a configuration diagram of an electronic book system according to a fifth embodiment of the present invention.

FIG. 13 is a configuration diagram of an electronic book system according to a sixth embodiment of the present invention.

FIG. 14 is a configuration diagram of an electronic book system according to a seventh embodiment of the present invention.

FIG. 15 is an explanatory diagram showing an outline of an electronic book system according to an eighth embodiment of the present invention.

[Explanation of symbols]

 101 first transmitting means 102 first receiving means 103 display device 104 selecting means 105 second transmitting means 106 second receiving means 107 billing means 108 third transmitting means 109 third receiving means 110 decoder 201 electronic Book device 202 Broadcast center 203 Management center 204 Billing database 601 CPU 602 RAM 603 ROM 701 First storage device 702 External storage device 703 Storage medium 801 Fourth transmission means 802 Fourth reception means 803 Second storage device 804 Fifth transmitting means 805 Fifth receiving means

Claims (5)

[Claims] 1. A first transmission means for broadcasting book information,
First receiving means for receiving the information transmitted from the first transmitting means, a display device for displaying the information obtained from the first receiving means, and a program received by the first receiving means Selecting means for selecting a program to be received from the information; second transmitting means for transmitting the ID of the selected information; second receiving means for receiving the ID information transmitted by the second transmitting means; Charging means for charging according to the content received by the second receiving means, third transmitting means for transmitting key information for decrypting the encrypted book information after charging, and the third transmitting means. And a third receiving means for receiving the key information sent by, and the book information obtained from the first receiving means is decrypted by the key information obtained by the third receiving means and displayed on the display device. And a decoder that E-book system. 2. A first transmission means for broadcasting book information,
A first receiving device for receiving the information transmitted from the first transmitting device; a first storage device for recording the information obtained by the first receiving device; and a first storage device. A display device for displaying the recorded information, a selection means for selecting the processing content for the first storage device, a second transmission means for transmitting the selected content, and a second transmission means. Second receiving means for receiving information, charging means for charging according to the contents received by the second receiving means, third transmitting means for transmitting a permit command after charging, and the third transmitting means. Third for receiving the authorization command sent by the means
And a external storage device for recording the contents of the first storage device in a storage medium by obtaining the permission command obtained by the third receiving device. . 3. A first transmission means for broadcasting book information,
A first receiving device for receiving the information transmitted from the first transmitting device; a first storage device for recording the information obtained from the first receiving device; and a first storage device. A display device for displaying the recorded information, a selecting device for selecting a program to be received from the program information received by the first receiving device, and a process for processing the information recorded in the first storage device; The second transmitting means for transmitting the ID and the processing content of the processed information, the second receiving means for receiving the ID information and the processing content transmitted by the second transmitting means, and the second receiving means. A billing means for billing according to the received content, a third transmitting means for transmitting key information for decrypting the encrypted book information after billing, and a permission command, and a third transmitting means. Receive key information and authorization instructions And third receiving means for a decoder for decoding the book information obtained from the first receiving means by the key information obtained by the receiving means of the third, the third
An external storage device for recording the contents of the first storage device in a storage medium according to the permission information obtained by the receiving means of 1. in a wireless electronic book system. 4. A first transmission means for broadcasting book information,
A first receiving device for receiving the information transmitted from the first transmitting device; a first storage device for recording the information obtained by the first receiving device; and a first storage device. A display device for displaying the recorded information, a selection means for selecting the processing content for the first storage device, a second transmission means for transmitting the selected content, and a second transmission means. Second receiving means for receiving information, charging means for charging according to the contents received by the second receiving means, third transmitting means for transmitting a permit command after charging, and the third transmitting means. Third for receiving the authorization command sent by the means
The receiving means, the fourth transmitting means for transmitting the contents of the first storage device by obtaining the permission command obtained by the third receiving means, and the information transmitted by the fourth transmitting means. Fourth receiving means for receiving, a second storage device for storing the information received by the fourth receiving means, fifth transmitting means for transmitting the contents of the second storage device, and the fifth And a fifth receiving means for receiving the information sent by the sending means and sending the information to the first storage device. 5. A first transmission means for broadcasting book information,
A first receiving device for receiving the information transmitted from the first transmitting device; a first storage device for storing the information obtained from the first receiving device; and a first storage device. A display device for displaying the recorded information; a selecting device for selecting a program to be received from the program information received by the first receiving device and a process for processing the information recorded in the first storage device; The second transmitting means for transmitting the ID and the processing content of the selected information, the second receiving means for receiving the ID information and the processing content sent by the second transmitting means, and the second receiving means. And a third transmitting means for transmitting key information and a permission command for decrypting the encrypted book information after charging, and a charging means for charging according to the received content. Key information and authorization instructions A third receiving unit for receiving the information, a decoder for decoding the book information obtained from the first receiving unit by the key information obtained by the third receiving unit, and displaying the book information on the display device; Fourth transmitting means for transmitting the contents of the first storage device according to the permission information obtained by the third receiving means, and fourth receiving means for receiving the information transmitted by the fourth transmitting means. A second storage device for recording the information received by the fourth reception device, a fifth transmission device for transmitting the contents of the second storage device, and information transmitted by the fifth transmission device. And a fifth receiving means for receiving and transmitting to the first recording device.