JP3175689B2 - Transceiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention receives text data, such as publications, relates to a receiving apparatus sent that are applied to text data to converts the audio signals.

[0002]

2. Description of the Related Art At present, most publications such as books and various magazines are sold using paper as a medium. On the other hand, in recent years, some publications, for example, dictionaries have used storage media such as CD-ROMs having a very large storage capacity.
What is called computerization is being pursued.

[0003]

However, the text data of various publications is usually output as a text display on a display device such as a CRT monitor, so that it is necessary to read the displayed text, and the user is tired of seeing. There are problems such as a decrease in visual acuity and difficulty in viewing by a person with weak visual acuity.

[0004] The present invention has been made in view of the above, and an object thereof is to provide a sending and receiving apparatus capable of outputting the audio data received text data.

[0005]

Means for Solving the Problems In order to solve the problems, the invention according to the first aspect of the present invention provides first communication from a remote place.
Digitized data transmitted over the network
Receives encrypted text data and encrypts it
Is transmitted from the issuer that issues the key information with
The encrypted key information is different from that of the first communication network.
Transmission / reception apparatus for receiving via a second communication network
Te, first receiving means for receiving the digitized text data encrypted transmitted via the first communication network from a remote location is applied, the key information encryption is performed First transmitting means for transmitting the encrypted user ID and / or device ID to the issuing source via the second communication network, and transmitting the encrypted key information;
The encryption sent by the first sending means at the issuing publisher
Receiving the user ID and / or device ID to which the
And decrypt the encrypted user ID and the decrypted user ID.
And / or encrypt the entire device ID and key information.
Issued via a second communication network different from the first communication network.
No. of receiving encrypted key information sent from the source
(2) a first cryptanalysis means for decrypting the encrypted key information received by the second reception means and extracting a user ID and / or a device ID and key information; Comparing means for comparing the user ID and / or device ID extracted by the cryptanalysis means with the user ID and / or device ID of the transmitting / receiving apparatus; and receiving the first receiving means if the result of the comparing means is correct. Means for decrypting the digitized text data which has been subjected to the encryption using the key information, and digitized text which has been decrypted by the second cryptographic analysis means. conversion means for converting text data into sound signal, that an output means for outputting the audio signal converted by converting means
It is a transmitting / receiving device characterized by the following .

[0006] Text data, such as publication information, is scrambled and transmitted. Scramble-out solutions to receive such data, scrambling is released
The converted text data is converted into an audio signal and output. Therefore, the contents of the text data can be known without reading the displayed text data.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing one embodiment of the present invention. In FIG. 1, information on publications such as newspapers, various weekly magazines, part-time job information magazines, and house information magazines are digitized as text data. Further, it is scrambled and transmitted by radio waves, for example, as a scramble broadcast using a satellite. For the transmission of the scrambled broadcast, terrestrial waves, CATV, or the like can be used, and a vacant time zone (for example, at night) of the TV broadcast is used.

The scrambled broadcast is received by the tuner 2 via the antenna 1 and descrambled by the descrambler 3, and is temporarily stored in a high-speed memory 4 such as a 16-Mbit D-RAM. The digital information stored in the high-speed memory 4 is recorded on a recording medium 6 via a disk driver 5. As the recording medium 6, a mini disk (MD), a magneto-optical disk (MO), a floppy disk, a hard disk, or the like can be used. The high-speed memory 4 is effective when the writing speed of the recording medium 6 is lower than the transmission speed of the radio wave. When the recording medium 6 is used, the writing speed is higher than the transmission speed of the radio wave. May be omitted.

The digital information recorded on the recording medium 6 is read out by the disk driver 5 and supplied to the display driving circuit 7 and the voice synthesizing circuit 8. The display drive circuit 7 drives a monitor 9 such as a TV based on the digital information read from the recording medium 6. As a result, the monitor 9 displays information on the publication transmitted by the scramble broadcast.

On the other hand, the voice synthesizing circuit 8 converts digital information, which is character information read from the recording medium 6, into voice information and supplies the voice information to a speaker 10 as a drive signal. As a result, the speaker 10 outputs the text information of the publication transmitted by the scramble broadcast as audio information.

Next, transmission of a scrambled broadcast will be described. The video band is 4 MHz, and when digitized, has a data transmission rate of about 2 Mbit / sec. Therefore, in one minute, 120 Mbit data can be sent. By the way, for example, considering a newspaper in which one page has 80 lines × 13 columns and one line has 13 characters, one character is converted into 16 bi-characters.
Assuming t, one page has a data amount of 216 Kbits.
Therefore, for example, in the case of a newspaper of 40 pages, the total data amount is about 9 Mbit, and it can be sent within one minute.

Considering the cost of using radio waves, assuming that the reception fee for terrestrial waves is, for example, 900 yen in January, and that the reception time for TV broadcasting is about 30 hours a day and that the reception time for TV broadcasting is about 20 hours. Approximately 0.025 yen per minute. Therefore, in the case of transmitting information of about 40 pages of newspapers, the transmission is sufficiently completed within one minute, and the radio wave cost is about 0.75 yen per month. In addition,
In this example, it is assumed that an existing terrestrial wave is used, but it is a matter of course that a dedicated radio wave may be set.

By the way, in the case of scramble broadcasting, a key is needed to descramble the scramble. Hereinafter, an example of operation of the key of the scramble broadcast will be described with reference to a sequence diagram of FIG. First, the key will change on a per-publication basis. Further, it is assumed that the user purchases this key through, for example, a telephone line. Locks and reverse locks are pieces of information that encrypt and return keys.
Sent by scramble broadcasting. When a key is purchased from a store (publisher, newspaper company, etc.), the locked user ID and / or device ID are sent to the store.

At the store, the user ID and / or
Alternatively, the key information is matched with the ID which is normally locked by reverse locking the device ID. And key information and user ID
And / or reverse lock the entire device ID and sell it to the user as a key. When the user inserts the purchased key into his / her device, the key information and the user ID and / or the device ID are output through the lock. User ID
If it is correct by referring to the device ID, the key information is entered into the descrambler 3.

As described above, only the user who has purchased the key of a specific publication records the digital information of the publication on the recording medium 6 and monitors the information of the publication based on the recorded digital information as necessary. 9 or
It can be heard from the speaker 10 as audio information. In the case of scramble broadcasting, the key may be purchased from a publisher or the like as described above.
In the case of the r View method, the fee for the received data may be paid. In the case of an irregular journal or the like, the digital information may be written to the recording medium 6 of the apparatus at an agency such as a bookstore.

Next, an example of use of the present apparatus based on the circuit configuration of FIG. 1 will be described. First, in the first usage example shown in FIG. 3, a tuner section 11 including a tuner 2, a descrambler 3, and a high-speed memory 4, a disk driver 5, a recording medium 6, a display drive circuit 7, a monitor 9, The synthesis circuit 8 and the display unit 12 including the speaker 10 are separated from each other, and they are configured to function integrally only during reception. In this configuration, the TV
The tuner unit 11 is connected to the antenna 1 during a vacant time zone of the broadcast (for example, at night), and the display unit 12 is connected to the tuner unit 11. Thus, when the information of the newspaper is digitized and sent by scramble broadcasting in the middle of the night, the digital information is automatically recorded on the recording medium 6.

On the other hand, by using, for example, a mini disk (MD) as the recording medium 6 in the display section 12, the size and weight of the device can be reduced, and the device can be easily carried. Therefore, by going out with the display unit 12 in the morning, it is possible to freely view and listen to the information in the newspaper at any time. In the case of portable use, it is convenient to have an earphone jack. In addition, by using a flash memory instead of a mini disk, a disk drive motor used in the case of a disk is not required, thereby further reducing power consumption and weight.

Next, in the second example of use shown in FIG. 4, for example, a magneto-optical disk (MO) having a large recording capacity is used as a recording medium, and the recording medium and its driver are also included in the tuner section. And a display unit including a recording medium such as a mini disk having a small storage capacity and its driver is referred to as a slave unit 14. In this configuration, for example, several months of newspaper information can be stored in the recording medium of the base unit 13. By copying the information stored in the recording medium of the base unit 13, for example, the information of the newspaper of the day, to the recording medium of the slave unit 14, the information of the newspaper can be freely viewed at any time as in the first use example. Or listen to it. The function of copying this information can be provided to the disk driver 5 (see FIG. 1) built in the master unit 13.

In this case, a problem occurs if any number of copies can be made from the master unit 13 to the slave unit 14. Therefore, when contracting for a newspaper subscription, the number of copies is also contracted. For example, when a three-copy contract is made, the information of the base unit 13 is not lost even if the child unit 14 copies up to two copies. The information on the recording medium of the base unit 13 may be deleted when the eyes are copied. Note that the number of contracts may be entered in the key information. As described above, the key information is purchased from a store selling publications.

In addition to the above-mentioned number contract, the master unit 13 may be provided with a so-called scrap function for scrapping an arbitrary article in a newspaper, for example. That is, in the state where an arbitrary article is displayed on the screen of the monitor 9 in the master unit 13, the display area of the article is designated by a pointing device (not shown) such as a mouse, and the article corresponds to the designated area. Digital information is transferred to the base unit 13
Is read from the recording medium and moved to the recording medium of the slave unit 14. At this time, it is convenient to make searchable by adding search information such as a title and an index.

Here, when the digital information corresponding to the designated area is moved from the recording medium of the master unit 13 to the recording medium of the slave unit 14, the digital information is erased from the recording medium of the master unit 13. . As described above, the copyright of the digital information of the scrapped article can be protected by deleting the digital information from the recording medium of the master unit 13 when the digital information is moved.

[0022]

As described in the foregoing, according to the present invention, information publications-out is a solution to receive and scrambled digital information digitized and scrambled was sent subjected, scramble has been released Since the information of the publication is output as audio based on the digital information, it is not necessary to read the display on the monitor. Therefore, there is an advantage that problems such as eye fatigue, deterioration of visual acuity, and difficulty in viewing by a person with weak visual acuity do not occur. Also, according to the present invention,
If the text information with a large amount of data is received via a satellite line
Key information with a small amount of data can be received over a telephone line.
Thus, there is an advantage that communication efficiency is increased. In addition,
According to the invention, character information and key information are transmitted on different transmission paths.
Because it is transmitted, if key information is prevented from being stolen
There are advantages.

[Brief description of the drawings]

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

FIG. 2 is a sequence diagram showing an operation example of a scramble broadcast key.

FIG. 3 is a block diagram showing a first use example of the device of the present invention.

FIG. 4 is a block diagram showing a second use example of the device of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Antenna, 2 ... Tuner, 3 ... De-scrambler, 5 ... Disk driver, 6 ... Recording medium, 7 ... Display drive circuit, 8 ... Voice synthesis circuit ,
9 Monitor, 10 Speaker

────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. ⁷ identification code FI H04N 7/00 Z (58) Investigated field (Int.Cl. ⁷ , DB name) H04H 1/00-1/08 H04K 1 / 00-3/00 H04L 9/00-9/04 H04M 11/00-11/10 H04N 7/00-7/173

Claims (4)

(57) [Claims] 1. A method for transmitting data from a remote location via a first communication network.
Digitized text with incoming encryption
Key that receives the encrypted data and is encrypted
Encrypted information transmitted from the publisher that issues the information
Key information stored in a second communication network different from the first communication network.
In receiving apparatus for receiving via a signal network, a first receiving means for receiving the digitized text data encrypted transmitted via the first communication network from the remote location is applied, First transmitting means for transmitting the encrypted user ID and / or device ID to the issuer issuing the encrypted key information via the second communication network; Issued by the issuer that issues the encrypted key information
The encrypted user transmitted by the first transmitting means
ID and / or device ID and encryption
User ID and / or decrypted user ID and / or
The entire device ID and key information are encrypted, and the first
From the issuer via a second communication network different from the communication network of
Receiving the encrypted key information transmitted from the second
Receiving means; first cryptographic analyzing means for decrypting the encrypted key information received by the second receiving means and extracting user ID and / or device ID and key information; Comparing means for comparing the user ID and / or device ID extracted by the cryptanalysis means with the user ID and / or device ID of the transmitting / receiving device side; if the result of the comparing means is correct, the first receiving means And decrypting the received encrypted digital data using the key information.
Encryption means, conversion means for converting digitized text data decrypted by the second encryption analysis means into an audio signal, and outputting the audio signal converted by the conversion means A transmission / reception device comprising output means. 2. A transceiver according to claim 1, transmission, wherein said first communication network is a satellite line
Receiver . 3. A transceiver according to claim 1, said second communication network feed characterized in that it is a telephone line
Receiver . 4. The transmission / reception apparatus according to claim 1, wherein the reception of the encrypted digitized text data transmitted from the remote place via the first communication network is performed in an idle time. Transmitting / receiving device.