JP2003111053A - Receiver and viewing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rental method of broadcast contents. SOLUTION: The data information associated with a broadcast program are encrypted and transmitted, and decryption information for decrypting encrypted data information associated with the broadcast program is separately acquired. No copy is made from the decryption information for decrypting encrypted data information and available effective time information is integrated in to the decryption information and the viewing period can be limited. The viewing system is provided with an accounting means for charging for viewing of data information associated with the broadcast program.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention obtains data information relating to a broadcast program of a data broadcasting program, records this data information on a recording medium, reads the recorded data information, and enables viewing of the read data information. The present invention relates to a method for obtaining processing information for processing, and an apparatus and method for performing processing so that the data information read from a recording medium can be viewed by the obtained processing information.

[0002]

2. Description of the Related Art In weather information, traffic information, etc. of a digital broadcast, a receiving apparatus which receives a data broadcast program of the digital broadcast can display the broadcast program information and the data information separately on a video information display section. There is. FIG. 1 shows an outline of an example of this display. A video display unit 1 displays a video 2 of a broadcast program on a part of the display unit. Reference numerals 3 to 8 are display portions that display data information regarding this broadcast program, other broadcast program information, and the like. The displayed data information is a summary of the data, a keyword, a schematic diagram showing the characteristics of the data, and the details of the data are often not displayed. Therefore, as an example of wanting to know the details of the data, the following operation is performed. For example, if you want to know the details of this data display unit 3, select the display unit 3 with an operating device such as a remote controller and give a detailed display instruction to display the details on the display unit 3 or other data. Part of the display (3, 4 parts) or the whole (3-8 parts) can be used to display this data detail. In this way, various kinds of information can be obtained.

FIG. 2 shows an example of a packet configuration of a data broadcast program broadcast for this purpose. As shown in FIG. 2, video information 11, 12 of the broadcast program body, audio information 13, control signal 14, and data information 15 are multiplexed to transmit the broadcast signal. The video information consists of the video information body and header information, and has a packet ID that can be distinguished from individual video information. Similarly, the voice information is also composed of the voice information body and the header information, and is provided with a packet ID that can be distinguished from the individual voice information. The control signal includes header information, channel management information, channel configuration information,
It is composed of program sequence information and the like. The data information is composed of header information and various data information bodies, and the data information body contains image information, an operation processing program for a screen displayed by the screen information, and the like. This screen operation processing program allows the viewer to operate the data display section 3 of the screen as shown in FIG. For example, screen display 3
When you point to and enter the detailed display instruction key,
It is designed to display data details. In this way, the broadcast program and the data information are displayed simultaneously, and the viewer can obtain the data information regarding the broadcast program while viewing the broadcast program.

[0004]

[Problems to be solved by the invention] On the other hand, unlike weather and traffic information, for movies, dramas and concerts,
There was no digital broadcasting data broadcasting as described above. As for the data information about the broadcast program as described above for movies, dramas, concerts, etc., the information provider who provides this data information wants to be able to view this detailed information when charged, and There is a demand that data information regarding broadcast programs should not be duplicated. On the other hand, the viewer side wants to record the data information regarding this broadcast program in the recording device and later reproduce and view the data information regarding this broadcast program. In response to the desire to reproduce and view the information after the viewer, the information provider may record and reproduce the information afterwards, but there is a request to limit the viewing period. The problem is to provide means for solving these two requests and promote the use of data information regarding broadcast programs.

[0005]

In order to solve the above problems, the present invention encrypts data information relating to a broadcast program and transmits it. Then, the receiving device separately obtains the decryption information for decrypting the data information relating to the encrypted broadcast program. Here, the decryption information for decrypting the data information should not be able to be duplicated. In addition, usable valid time information is incorporated in this decryption information. Then, when the viewer tries to view the data information about the broadcast program, the control means is provided for judging whether or not the viewing is possible based on the effective time information and controlling the viewing. Further, when the viewer obtains the decryption information, a charging means for charging the viewing of the data information regarding the broadcast program is provided.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In one embodiment of the present invention, a broadcast program is a trailer including a part of contents such as a movie, and the data information on the broadcast program is the entire main feature of the movie or the like. Then, the entire main part of the movie or the like will be described as a data information providing service system such as a rental service of a movie or the like by broadcasting, which allows viewing for a fee and limits viewing time.

FIG. 3 is a schematic configuration diagram of a data information providing service system. Reference numeral 21 is a content creating device for creating a broadcast program, 22 is a program transmitting device for transmitting the broadcast program, 23 is a receiving device for receiving the broadcast program transmitted by the program transmitting device 22, and 24 is a broadcast received by the receiving device 23. An output device for outputting a program, 25 an input device for selecting a broadcast program and performing a recording operation, 26 a public network, 27 a management device for managing broadcast program information and viewing information Is. Although the receiving device and the output device are separate here, they may be integrated into a receiving device.

First, FIG. 4 shows an example of the structure of broadcast program information created by the content creation device. 31 is the identification information C1 of the trailer 1 such as a movie, 32 is the trailer 1 of the movie or the like associated with this identification information C1, 33 is the identification information H1 of the main feature information 1 of the trailer associated with the identification information C1, 34 is the trailer information H1 The trailer main information 1 and 35 associated with the trailer is identification information C2 of the trailer 2 such as a movie, 36 is the trailer 2 such as movie associated with the identification information C2, and 37 is the trailer main information 2 associated with the identification information C2. The identification information H2 and 38 are connected in the same manner as the main story information 2 of the trailer associated with the trailer information H2.
A trailer such as a movie is information that can be viewed by receiving signal processing by the receiving device, and the main part information corresponding to the trailer is information that has been subjected to processing such as encryption, and the processing such as encryption must be solved. I can't watch.

Next, FIG. 5 shows a schematic structure of the content creation apparatus. Reference numeral 211 denotes a main part creating unit that performs processing such as editing to create a main part, and includes a video information storage unit for editing, means for removing a part of the video information, means for connecting the video information, and insertion of audio information. And means for voice multiplexing. Reference numeral 212 denotes a trailer creation unit that takes out a part of the main feature created by the main feature creation unit 211 and creates a trailer by combining the parts, and is configured by the same editing means as described above. That is, it is configured by means for temporarily storing the taken-out portion, means for connecting with another taken-out portion, voice, etc., and means for superposing another video information on the taken-out video information. Reference numeral 213 denotes an encryption processing unit that compresses the data information of the main volume by the compression unit and also encrypts it by the encryption processing unit. When the encryption process is performed, the decryption information for decrypting the encryption process is decrypted. It is sent to the information storage unit 214. The main part data information may be compressed by the main part creating section, and the trailer may be compressed by the trailer creating part. Also, the compression rate may be different between the main part and the trailer. In order to encourage viewing, the compression ratio of the trailer may be set lower than that of the main part so that the quality is higher than that of the main part. In the decryption information storage unit 214, the decryption information is stored in the storage unit by the storage means. The main part created by the main part creating part and the trailer created by the trailer creating part corresponding thereto are sent to the identification information adding part 215, and created by the identification information creating part in the identification information adding part 215. The identification information related to each of the above is added to the main part information and the trailer information by the adding means, and the combined information is sent to the transmission unit 216 as one content information. Then, the related identification information is sent to the decryption information storage unit 214. When the decryption information storage unit 214 receives the related identification information, the decryption information storage unit 214 stores the decryption information and the identification information which are received and stored in advance in association with each other. For example, the title of the main part, the identification information, and the decryption information of the main part are stored as a series of data. This transmitter 216
The content data information sent from the program transmission device 22 to the program transmission device 22 is combined with the content information sent to the other programs, the broadcast time is set, the process for transmitting as a broadcast is performed, and the broadcast program is transmitted. To broadcast as. Broadcasting may be broadcasting using satellites, broadcasting using cables, or broadcasting using terrestrial waves. The broadcast program transmitted by this program transmitting apparatus is received by the receiving apparatus.

FIG. 6 shows a schematic configuration of the receiving device. Reference numeral 31 is a program broadcast receiving section, and 32 is a signal processing section for processing so that the received program information can be viewed. The signal-processed program information is sent to the control unit 33, but the main part encrypted here cannot be processed so that it can be viewed because there is no decryption information. When the identification information is added to the main part of the content creation device 21, the encrypted information is added to the additional information of the main part, and when the signal processing unit 32 detects the encrypted information, The main part is sent to the control unit 33 as it is. That is, the signal processing unit 32 performs processing so that only program information that has not been encrypted can be viewed. The control unit 33 outputs the processed information to the output unit 34. The encrypted main program information is recorded in the recording unit 36 by the recording unit together with the additional information of the main program, only when the information for viewing the main program information is input by the input information from the operation input unit 35. . Further, when the control unit 33 receives the information for viewing the main part, the control unit 33 sends to the data transmission / reception unit 37 the main part additional information and the request information requesting the acquisition of the decryption information for deciphering the encryption process of the main part. Send to 27. And
The decryption information of the main part is received from the management device 27. The received decryption information is sent to the control unit, and the control unit records this decryption information in the recording unit by the recording means. The transmitted decryption information is added with additional information corresponding to the main part, and is recorded in correspondence with the main part that matches the additional information recorded in the recording section. Then, the control unit creates information indicating that the main part can be viewed and outputs this information to the output unit. The title information of the main part made available for viewing in the output unit is displayed. FIG. 7 shows a display example on the display unit. The display example shows a display example in which four contents are recorded and two of them are viewable.
The viewing period display section in this display example is adapted to be changed according to the time information. For example, the change may be made at regular time intervals instead of hourly time. Change to display that you cannot view after the available viewing period. Further, the main part that cannot be viewed and the decryption information that cannot be used may be erased from the recording unit based on the time information. For this purpose, the identification information is used. Identification information added to the decryption information,
A search is made for a match with the recorded identification information of the main part, and if it matches, the main part is deleted, and the decryption information itself is also deleted. Based on this display result, an operation for viewing is performed with the operation input device, and information for this operation is output to the reception control unit by the operation input unit. When the control unit receives this information, the recording unit retrieves and reads the main part information to be read by the reading unit. The decryption information is also read at the same time. The decrypted information of the read main part is decrypted using this decrypted information, and is output to the output unit as viewable information. Copy information and time information are added to the decryption information. The copy information is information that allows the decryption information to be copied only once. When the receiving device receives the information, the copy information is detected, and the detection result is recorded in the recording unit by the recording unit. At the time of recording, the copy information is converted into copy prohibition information. Therefore, the decryption information cannot be read and re-recorded. The time information is information that determines the valid period during which the decryption information can be used, and is composed of date and time information. When the operation to read out the main part information and try to view is performed, the control unit displays the time information,
The time when the viewing operation is performed (time information of the clock held by the receiving device, or time information transmitted by a radio wave received by the receiving device) is compared by the comparing means. As a result of the comparison, if it is within the valid viewing period, the control unit processes the encrypted information of the main part information by decryption information so that the main part information can be viewed and outputs it to the output unit 34.

Next, a method of selecting a main part to be viewed by using the input device 25 will be described. FIG. 8 is a display example of video information received by the display device. Reference numeral 81 is a trailer video display portion of a movie of a broadcast program, 82 to 85 are title display portions of trailers, and 86 to 89 are button display portions for determining viewing of the main portion of each title. It also contains information such as. In the figure, four titles are displayed, but any number may be displayed. The title display section and the button display section can be scrolled so that all the titles of the trailers transmitted by broadcasting can be viewed. Further, the title display portion of the trailer being displayed at the present time can be recognized so that it can be distinguished from other title display portions (in the example, the title display portion of 83). For identification, the color and the like are different from those of other title display parts. Reference numeral 90 is an information display unit for instructing an operation of changing the display on the screen to change the broadcast channel or watch a broadcast program of each channel. In the input device, 86-89
The button display portion of can be pointed, and the pointing position can be changed by the pointing movement key. The pointing is performed in the same manner as the method for distinguishing the title display section described above. 8 in this example
In this example, the 9 button display is pointing. In the input device, pointing of the title display portion and button display portion can be operated by keys. The pointing position of the title display section or the button display section of the receiving device is changed according to the information of the key operation. Then, the enter button for viewing is operated. When this operation is performed, the color of the button display portion is changed so that it can be seen that the user desires to watch. Also, by this operation, the receiving apparatus performs the operation for viewing as described above.

Although the above-mentioned input device has been described as a remote controller only for key operation, the input device is provided with a display section, and this information is received from the receiving apparatus so that only the title and the button are displayed on this display section. It may be displayed. Then, the received information is stored in the input device,
The stored information enables the above-mentioned operation.
Next, a method of obtaining the decryption information and the management device will be briefly described. The above-described information for obtaining the decryption information is sent from the transmitting / receiving unit of the receiving device to the management device via, for example, the public line network together with the selected identification information of the main part. When sending this information for obtaining, the registration number (telephone number) in the public network connected to the receiving device is also sent to the management device. A schematic configuration of the management device is shown in FIG.
Reference numeral 91 is a transmission / reception unit, 92 is an information processing unit, 93 is an accounting processing unit, 94 is a transmission unit, and 95 is a storage unit. The transmission / reception unit receives the acquisition request information of the decryption information and the registration number information. The received information is sent to the information processing unit 92. Further, the main part identification information, the main part decryption information, and the viewing fee information are received from the content creation device 21 and sent to the information processing section. The information processing unit 92 first creates a list as shown in FIG. 10 based on the information sent from the content creation device. Then, this list is stored in the storage unit 95 by the storage means. Next, the identification information of the main part is extracted from the information sent from the receiving device, the list stored in the storage unit is searched, and the related information matching this identification information is extracted. Copy information and time information indicating a viewable period are added to the extracted information and sent to the transmission / reception unit and sent from the transmission / reception unit to the transmission device. The copy information is information that can be copied only once and is determined as copy prohibition information when copied. Therefore, this copy information is stored in the storage unit, and the copy information is read from the storage unit.
It may be added. In the information processing section, FIG.
The list shown in 1 is created and stored in the storage unit. The billing processing unit 93 calculates the viewing fee of the registration number, creates billing information, sends it to the transmitting unit, and transmits the billing information from the sending unit to the billing processing institution that is billed by the registration number. Or send an invoice to the owner of the registration number. Also,
The number of views for each main title is totaled, totaled data is created, and the viewing part data is transmitted from the transmission unit to the content creation device. Based on this viewing number data, it can be used as data for providing the popular information of the content using the information of the viewed content and for creating the content. This management device may be integrated with the content creation device.

FIG. 1 shows the flow of the main part viewing as described above.
2 shows. First, select the main part you want to watch from the trailer of the broadcast program. The acquisition request information is transmitted to the management device so as to obtain the information for viewing the main part, and the data information of the selected main part is recorded in the recording unit. Information necessary for viewing is received from the management device. It is displayed that the preparation for viewing is completed, and the viewing operation of the main part is performed based on the display result. The main part can be viewed by performing a viewing operation. It is processed so that it cannot be viewed after the viewing period. On the other hand, regarding the billing relationship, when the acquisition request information for viewing is received by the management device, the registration authority of the receiving device at this point causes the registered decision-making body to process the information.

[0014]

According to the present invention, since a large number of viewers can watch the same movie or the like at the same time, there is no need to go to a rental store to rent the same as in the conventional case. Since it doesn't exist, the problem that it is not always possible to borrow when you want to see it also disappears. Further, according to the present invention, it is possible to prevent illegal duplication, to limit the viewing period, and the main part recorded in the receiving device is automatically deleted after the viewing period. Need not be erased.

[Brief description of drawings]

FIG. 1 is a diagram showing a display example in a conventional example.

FIG. 2 is a diagram showing a configuration example of data information of a broadcast program.

FIG. 3 is an example showing a schematic configuration of the present invention.

FIG. 4 is a diagram showing an example of the configuration of broadcast program information.

FIG. 5 is a schematic configuration diagram of a content creation device used in the present invention.

FIG. 6 is a schematic configuration diagram of a receiver used in the present invention.

FIG. 7 is a display example showing the state of viewing information.

FIG. 8 is a display example of a screen in the explanation for viewing selection.

FIG. 9 is a schematic configuration diagram of a management device used in the present invention.

FIG. 10 is an example of a management list of decryption information created by the management device.

FIG. 11 is an example of a management list of billing information created by the management device.

FIG. 12 is a diagram showing a flow until viewing the main part.

[Explanation of symbols]

21 Content creation device 22 Program transmitter 23 Receiver 24 Output device 25 Input device 26 public network 27 Management device 211 Main story creation section 212 Trailer Creation Department 213 Encryption processing unit 214 Decryption Information Storage Unit 215 Identification information addition unit 216 Transmitter 31 Receiver 32 signal processor 33 Control unit 34 Output section 34, 35 operation input section 36 Recorder 37 Data transmitter / receiver

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04N 5/44 H04N 5/445 Z 5/445 7/08 Z 7/08 7/167 Z 7/081 H04L 9/00 601B 7/167 F term (reference) 5C025 CA02 CA09 CB10 DA01 DA05 5C063 AA01 AB03 AB07 AC01 AC05 AC10 CA23 CA36 DA01 DA07 DA13 DB10 5C064 BA01 BB01 BB02 BC04 BC06 BC17 BC18 BC22 BC23 BC25 BD02 BD04 CB06 CC01 CA14 AA01 AA16 BA03 EA01 EA04 NA02 PA05 PA11

Claims (4)

[Claims] 1. A receiving apparatus for receiving a data broadcast having a series of broadcast programs including a part of each of a plurality of contents and related information including data information which is the whole of the encrypted contents, wherein: First receiving means for receiving the broadcast program and related information, selecting means for selecting a predetermined content from the series of broadcast programs, and encrypted data relating to the predetermined content selected by the selecting means. Recording means for recording information, request means for requesting decryption information for decrypting the encryption of the data information recorded by the recording means, and decryption information transmitted in response to the request of the request means. Second receiving means for receiving, based on the decryption information received by the second receiving means,
A receiving device comprising a reproducing means for decoding and reproducing the encryption of data information. 2. The receiving apparatus according to claim 1, wherein the decryption information includes recording restriction information for restricting re-recording of the data information recorded by the recording means. 3. The receiving apparatus according to claim 1, wherein the decryption information includes valid period information that defines a period during which the encryption of the data information can be decrypted. 4. A transmitter for transmitting a data broadcast having a series of broadcast programs including a part of each of a plurality of contents and related information including data information which is the entire encrypted contents, and from the transmitter. Receive the transmitted series of broadcast programs and related information, select a predetermined content from the received series of broadcast programs, and record encrypted data information regarding the selected predetermined content. A receiving device that requests decryption information for decrypting the recorded encryption of the data information; and an amount to be charged to the user of the receiving device, based on the decryption information requested by the receiving device A viewing system, comprising: a billing processing device.