WO2005098852A1 - 情報記録装置及び情報記録用プログラム - Google Patents
情報記録装置及び情報記録用プログラム Download PDFInfo
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- WO2005098852A1 WO2005098852A1 PCT/JP2005/004310 JP2005004310W WO2005098852A1 WO 2005098852 A1 WO2005098852 A1 WO 2005098852A1 JP 2005004310 W JP2005004310 W JP 2005004310W WO 2005098852 A1 WO2005098852 A1 WO 2005098852A1
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- Prior art keywords
- information
- recording
- broadcast program
- user
- encoding
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/7921—Processing of colour television signals in connection with recording for more than one processing mode
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/781—Television signal recording using magnetic recording on disks or drums
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/84—Television signal recording using optical recording
- H04N5/85—Television signal recording using optical recording on discs or drums
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
- H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
Definitions
- the present application belongs to the technical field of an information recording device, an information recording method, an information recording program, and an information recording medium, and more specifically, receives a broadcast program, records the broadcast program on a recording medium such as an optical disk, and stores it.
- the present invention belongs to the technical field of an information recording apparatus and an information recording method for performing the same, an information recording program used for the information recording, and an information recording medium on which the information recording program is recorded.
- recording media such as HDDs (Hard Disc Drives) capable of high-speed and long-time recording have been used as recorders for receiving broadcast programs via broadcast radio waves and storing and recording the received broadcast programs. Recorders including are becoming widespread. At this time, according to the recorder, since the built-in recording medium has a large capacity, the remaining capacity as a recording medium is more important than a conventional video cassette tape or a recordable DVD (Digital Versatile Disc). It is possible to record (record) the above-mentioned broadcast programs without recording.
- HDDs Hard Disc Drives
- Patent Document 1 JP-A-10-66018
- Patent Document 2 Japanese Patent Application Laid-Open No. 2003-189243
- the present application has been made in view of the above-mentioned problems, and an example of the problem is to record a broadcast program while setting an optimal storage format for each user for each user.
- an information recording device and an information recording method capable of securing a free area of a recording medium, an information recording program used for the information recording, and an information recording medium on which the information recording program is recorded are provided.
- the invention according to claim 1 provides an acquisition unit such as a broadcast receiving unit for acquiring record information to be reproduced from outside, and a user who reproduces the acquired record information.
- a preference level setting means such as a program management unit for setting a preference level for the recording information for each recording information, and a re-encoding format of the acquired recording information corresponding to the set preference level.
- a coding format setting means such as a program management unit to be set for each piece of recording information, and using the set recoding format to re-encode the corresponding obtained recording information to generate re-coded recording information. It comprises a re-encoding unit for generating and a storage unit such as a storage unit for storing the generated re-encoded recording information.
- the invention according to claim 8 obtains the recording information from an external device by using a computer included in an information recording device that acquires and records the recording information to be reproduced.
- Acquisition means preference level setting means for setting a preference level of the user who reproduces the acquired record information for the record information for each record information, and the acquired record corresponding to the set preference level.
- Encoding format setting means for setting a re-encoding format of information for each recording information, and re-encoding the corresponding acquired recording information using the set re-encoding format to re-encode the recording information.
- a storage means for storing the generated re-encoded recording information.
- FIG. 1 is a diagram illustrating the principle of the present application.
- FIG. 2 is a diagram showing a schematic configuration example of an information recording device according to an embodiment.
- FIG. 3 is a diagram showing an example of an internal configuration of a knowledge database according to the embodiment.
- FIG. 4 is a diagram showing an example of a re-encoding process according to the embodiment.
- FIG. 5 A learning algorithm according to an embodiment when classifying broadcast programs by learning user preferences. It is a flowchart figure which shows an example of a algorithm.
- FIG. 6 is a flowchart showing an example of a learning algorithm according to the embodiment when updating information inside a knowledge database by viewing a broadcast program by a user.
- FIG. 7 is a flowchart illustrating an example of a learning algorithm according to an embodiment when updating information inside a knowledge database based on storage information of a broadcast program watched by a user.
- FIG. 8 is a flowchart illustrating an example of a learning algorithm according to an embodiment when updating information inside a knowledge database based on erase information of a broadcast program watched by a user.
- FIG. 9 is a flowchart showing an operation when re-encoding and recording broadcast program data according to the embodiment.
- a broadcast program can be received via broadcast radio waves, and its contents can be recorded on a recording medium such as an HDD and dubbed on an optical disc such as a DVD.
- a recording medium such as an HDD and dubbed on an optical disc such as a DVD.
- FIG. 1 is a diagram illustrating a recording mode of a broadcast program according to the present application.
- the present application relates to a large-capacity recorder using an HDD or the like, which corresponds to a broadcast program obtained by receiving a broadcast wave from a broadcast station or the like (hereinafter, simply referred to as broadcast program data), or data received in the past. This is related to the re-encoding of already recorded broadcast program data.
- the present invention relates to a coding scheme used in the recoding process for reflecting the user's "preference" on broadcast program data after reception or recorded broadcast program data.
- the dangling method is determined, and the broadcast program data after reception is re-encoded and recorded according to the encoding method, thereby securing an empty area of the recording medium.
- the above-mentioned "reflecting the user's preference” means, firstly, that the user subjectively wants to record and save it on a DVD or the like.
- the purpose of this is to store the target broadcast program at a predetermined quality for a long period of time by automatically reflecting the subjectivity of the broadcast program. Is automatically determined and stored for a long period of time while maintaining the quality according to the attribute.
- the user should not listen too much! ⁇ ⁇ ⁇ ⁇
- In the case of a broadcast program by automatically re-encoding and erasing sequentially after a predetermined period has elapsed, it is possible to record the broadcast program data without impairing the quality of other broadcast programs that are important to the user. This is to secure an area such as an HDD.
- FIG. 1 is a diagram illustrating an example of recoding and erasing for each class described later.
- the present application determines the user's mode of use, such as the content of a broadcast program and the user's operation history, and records the user's preference according to the user's preference.
- Broadcast program data is classified into several layers (hereinafter, referred to as “classes”), and the re-encoding format is determined according to the class.
- the class is derived by learning from the attributes of the broadcast program and the operation history of the user.
- the received broadcast program data and the like are classified into, for example, four classes, Class S, Class A, Class B, and Class C, based on the user's preference, and the broadcast program data is re-read for each class. It defines the encoding 'erasure policy.
- the priorities of broadcast programs are determined according to the degree of user preference in each class.
- the class S is a broadcast program having an attribute that a user frequently saves to a DVD or the like for long-term storage, and corresponds to a broadcast program having the highest user preference. For this reason, as shown in Fig. 1, the quality of recorded broadcast program data of class S is emphasized for its recording quality, and it is stored for a long period of time while maintaining a predetermined high image quality or higher. And
- the class A is a broadcast program having an attribute frequently viewed by a user, and is a broadcast program (for example, a drama or the like) for which image quality is required based on the attribute, and has a high user preference. Things apply. Therefore, as shown in Fig. 1, the quality must be emphasized, and the bit rate is gradually reduced with the elapsed time after recording, re-coded, and recorded for a long period of time, but eventually disappears It is a form to do.
- Class B is a broadcast program having an attribute frequently viewed by a user, but a broadcast program (for example, an information program such as a hobby or culture) that does not require much image quality due to the attribute. Applicable. In other words, a broadcast program that is more practical than amusement for the user corresponds to the broadcast program. Therefore, as shown in Fig. 1, the broadcast program is re-encoded to reduce the quality to a predetermined level in a short period of time. After the recoding process, the quality is maintained for a long time. For Class B, a broadcast program with similar content may replace a past broadcast program.
- a broadcast program for example, an information program such as a hobby or culture
- the class C corresponds to a broadcast program (for example, news, etc.) which the user does not watch much or which is not required to be stored for a long time due to the attribute, and a broadcast program having the attribute. Therefore, the re-encoding process is performed step by step in a short period of time, and finally disappears.
- a broadcast program for example, news, etc.
- a set of related keywords is constructed as a knowledge database (hereinafter, appropriately referred to as a knowledge DB).
- the determination of the attribute of the broadcast program that matches the keyword is performed. On the basis of this determination result, a determination may be made as to whether the user prefers to emphasize the image quality or record for a long period of time as the tendency of the broadcast program viewed by the user. Good.
- FIG. 2 is a block diagram showing a schematic configuration example of the recorder according to the embodiment
- FIG. 3 is a diagram showing an internal configuration example of the knowledge database according to the embodiment
- FIG. FIG. 5 is a diagram illustrating an example of a coding process
- FIG. 5 is a flowchart illustrating an example of a learning algorithm when classifying broadcast programs by learning user preferences according to the embodiment
- FIG. 7 is a flowchart illustrating an example of a learning algorithm for updating information inside a knowledge database when a user views a broadcast program according to an embodiment
- FIG. 7 illustrates a broadcast viewed by a user according to the embodiment
- FIG. 8 is a flowchart illustrating an example of a learning algorithm when updating information in the knowledge database based on information stored in a program.
- FIG. 8 is a diagram illustrating information on erasure of a broadcast program viewed by a user according to the embodiment. Is a flow chart illustrating an example of a learning algorithm for updating the internal information in the knowledge database based on
- FIG. 9 is a flow chart showing the recording process of the broadcast program data according to the embodiment.
- the recorder R includes a broadcast receiving unit 6 that receives a broadcast wave that carries information on a broadcast program transmitted from an external network N (for example, a television broadcast network or the Internet). And a storage unit 7 such as an HDD for storing (recording) broadcast program data corresponding to the received broadcast program, a storage unit 7 as a recording unit and a reproduction status recording unit, and an operation unit 8A as a selection unit.
- a program management unit 8 serving as a preference level setting unit, an encoding format setting unit, a search word weighting unit and a related weighting unit for managing received broadcast program data, and the stored broadcast program data is read out from the storage unit 7 and re-read. It comprises a re-encoding unit 9 for performing encoding processing and a disk drive 10 for recording / reproducing information on / from an optical disk 10a such as a DVD. It is electrically connected via 12.
- the storage unit 7 includes a program management information recording unit 7A and a knowledge database recording unit 7B.
- an MPEG (Moving Picture Expert Group) encoder for receiving and encoding the broadcast program data and decoding (playback) the encoded broadcast program data MPEG decoders and the like are omitted because they are publicly known.
- the broadcast receiving unit 6 includes one or a plurality of tuners, and receives an image Z of broadcast program data transmitted from a TV broadcast station through a predetermined broadcast channel in accordance with an instruction from the program management unit 8.
- the audio data is received, and the received broadcast program data is output to the program management unit 8 via the bus 12.
- the broadcast receiving unit 6 transmits broadcast program-related information (for example, V, so-called ARIB (Association of Radio Industries and Businesses) that is multiplexed with the broadcast program data and transmitted instead of the broadcast program data alone. Also receives SI (Service Information) information standardized by the Association of Radio Industries and Businesses) and outputs necessary broadcast program related information to the program management unit 8 in response to a request from the program management unit 8. .
- broadcast program-related information for example, V, so-called ARIB (Association of Radio Industries and Businesses) that is multiplexed with the broadcast program data and transmitted instead of the broadcast program data alone.
- SI Service Information
- the storage unit 7 includes an HDD for storing broadcast program data and the like, and stores broadcast program data output from the broadcast receiving unit 6 in accordance with an instruction from the program management unit 8. Also accumulate The broadcast program data thus obtained is managed by the program management unit 8 as one or a plurality of files.
- the program management information recording section 7A in the storage section 7 records the program management information used for the use of the program management section 8, while the knowledge database recording section 7B stores various types of information constituting a knowledge database described later. Record information. Further, the program recording unit 7C records the broadcast program data itself.
- the program management unit 8 manages program management information and the like of broadcast programs, scheduled recordings, and recorded (V, R stored in the storage unit 7) broadcast programs.
- the program management unit 8 determines whether to re-encode or delete broadcast program data based on the program management information according to the status (free space or the like) of the program recording unit 7C. Control of re-encoding of the corresponding recorded broadcast program, erasure control of the corresponding broadcast program, or recording control of the re-encoded broadcast program data on the optical disk 10a in 9 is performed.
- FIG. Fig. 3 shows a sports knowledge database as an example.
- the knowledge database accumulates predetermined keywords extracted in association with each other based on information such as the user's viewing status, and is extracted by the user's current or future viewing. It has a learning function of adding a predetermined keyword to the knowledge database.
- the keyword is, for example, a keyword such as a genre, a type, and a name.
- the keywords to be extracted are genre “sports” as the top-level concept and “sports” "Golf” as a lower-level concept, " ⁇ Open” as a lower-level concept of golf, "Tiger W” as a participant's name as a lower-level concept of open, or the country name "U.S.A.” Applicable.
- the extracted keywords are classified in the knowledge database while being associated with a predetermined hierarchy based on information of each broadcast program. As a result, the lower the layer in the knowledge database, the more mesh-like associations are made.
- a related point is added to the connection between each keyword as an index indicating that the connection between the keywords is deep.
- the size of the relevant point is indicated by the thickness of the line.
- a preference point as a criterion for judging the user's preference is also added to a keyword extracted at that time. More specifically, for example, for viewing, saving, and erasing, the viewing preference point is “+1”, the storage preference point is “+2”, and the erasure preference point is “1-1”. It is said.
- the preference points may be set by the user directly inputting each broadcast program from the operation unit 8A.
- the knowledge database has the above-mentioned hierarchical structure ( ⁇ -shaped structure)
- the keyword that is extracted by the user based on the broadcast program information and the keyword that is stored in the knowledge database can be determined. It is possible to calculate the user's preference points by extracting the matched keywords by judging the degree of matching, adding and subtracting the preference points given to the extracted keywords. Then, this preference point is the user preference level of the embodiment for the broadcast program information.
- the program management information of the broadcast program watched by the user also extracts a predetermined keyword and accumulates the keyword while associating the keyword with the keyword.
- a keyword is added based on the program management information for viewing a broadcast program, etc., and is accumulated while being reflected in past information.
- the re-encoding unit 9 has an encoding / decoding function corresponding to several encoding formats (compression format, multiplex format, bit rate, and the like).
- the encoding format of the recorded broadcast program data stored in the recording medium of the accumulation unit 7 is re-encoded according to the designated encoding format.
- FIG. 5 shows an example of a learning algorithm used when the program management unit 8 learns user preferences and classifies broadcast programs.This classification is performed, for example, when the user makes a recording reservation or makes a recording. Done.
- the program management unit 8 extracts from the program management information a keyword (for example, genre) that simply indicates the attribute of the broadcast program watched by the user. Yes (step S100).
- a keyword for example, genre
- keywords having a high relevance to the extracted keywords are extracted in the knowledge database (step S 101).
- all the keywords in which the knowledge database is also extracted are used for program management information (for example, broadcast program name, broadcast program (Commentary, etc.), add the matched keywords to the program management information and manage them in association with the broadcast program data, and calculate and use the preference points assigned to each extracted keyword in the knowledge database.
- the user's preference is calculated, and classification is performed based on the calculation result (step S102).
- the information for classification is managed by the program management unit 8 by associating the broadcast program data with the program management information.
- Fig. 6 shows an example of a learning algorithm when the program management unit 8 updates information inside the knowledge database by viewing a user's broadcast program.
- the broadcast program information viewed by the user is stored in the knowledge database. It is to reflect.
- the thread management unit 8 uses the program management information of the broadcast program viewed by the user to determine the past viewing history and the broadcast program quality ( Bit rate, etc.), and the viewing point is calculated (step S103).
- the viewing point is, for example, a point given when the user has watched a similar broadcast program in the past, or has recorded the broadcast program with high quality. is there
- a keyword or the like that simply represents a broadcast program or the like is extracted from a program management information card of a broadcast program, a keyword associated with the keyword is extracted from a knowledge database, and the knowledge database power is also extracted.
- the viewing point is added to the keyword, and the knowledge database is updated (step s104).
- FIG. 7 shows an example of a learning algorithm when the program management unit updates the information inside the knowledge database based on the stored information of the broadcast program watched by the user.
- the stored information is reflected in the knowledge database.
- the program management unit 8 uses the program management information of the broadcast program watched by the user to store the past storage history and the broadcast program quality (bit Rate, etc.), and save points are calculated (step S105).
- the storage point is, for example, a point given when a user has viewed a similar broadcast program in the past and saved the broadcast program.
- a keyword or the like that simply represents a broadcast program or the like is extracted from the program management information of the broadcast program, and a keyword associated with the keyword is extracted from the knowledge database.
- the storage points are added and the knowledge database is updated (step s106).
- the number of the storage points may be set in consideration of the storage state (for example, class S).
- FIG. 8 shows an example of a learning algorithm when the program management unit 8 updates the information inside the knowledge database based on the erase information of the broadcast program watched by the user. The deletion information is reflected in the knowledge database.
- the thread management unit 8 manages the program management information of the broadcast program viewed by the user. (Bit rate, etc.) are extracted, and an erasure point is calculated (step S107).
- the erasure point is, for example, a point given when a user has viewed a similar broadcast program in the past and erased the broadcast program.
- a keyword or the like that simply represents a broadcast program or the like is extracted from the program management information of the broadcast program, and a keyword associated with the keyword is extracted from the knowledge database.
- the erasure points are added and the knowledge database is updated (step s108).
- the user's preference It can be a reference for judging the state. This is a case in which if the user views and deletes a similar broadcast program in the past, the user's preference level of the broadcast program can be determined to be low.
- the number of erasure points may be set in consideration of the erasure state (whether or not the broadcast program corresponds to class A or class C).
- FIG. 9 shows an operation sequence when re-encoding and recording broadcast program data, and shows, for example, an operation when a user performs a scheduled recording or the like.
- the program management unit 8 performs V, V based on the program management information of the broadcast program data scheduled to be recorded by the user. Then, the capacity of the broadcast program data to be recorded by the reserved time is calculated (step S1). Then, the storage unit 7 is inquired of the free space (step S2).
- the storage unit 7 calculates the free space of the program recording unit 7C separately stored in the storage unit 7 and described in the HD management information in response to the inquiry from the program management unit 8. Is issued (step S3), and the calculated free space is notified to the program management unit 8 (step S4).
- the program management unit 8 acquires the information on the free space according to the notification from the storage unit 7 (Step S5), and further performs a re-encoding process on the broadcast program data recorded in the storage unit 7. Or, determine whether or not there is any broadcast program data that needs to be erased, and if the determination is affirmative, calculate the capacity “A” of the broadcast program data that needs to be recoded or erased. Yes (step S6).
- the capacity of erasable program data that satisfies “A” and the capacity of program data that can be re-encoded are calculated.
- the capacity of the erasable broadcast program data is calculated based on the program management information of the broadcast program data (step S7). At this time, the calculated capacity is represented as an erasable capacity “B”.
- the program management unit 8 compares the erasable capacity “B” with the required capacity “A”, and when the value of “B” is “ It is determined whether the force is equal to or greater than the value of “A” (step S8). If the value of “B” is equal to or larger than the value of “A” (step S8; Y), the storage unit 7 is instructed to delete the corresponding broadcast program data (step S18). Accordingly, the storage unit 7 deletes the corresponding broadcast program data based on the instruction and updates the HD management information (step S19). Further, after erasing the broadcast program data, the storage unit 7 notifies the program management unit 8 of the completion of the erasure of the broadcast program data (step S20). Thus, the program management unit 8 updates the program management information based on the notification (step S21), and ends a series of processing.
- the capacity of the broadcast program data to be recorded is calculated, the free space in the program recording unit 7C is calculated, and the recoding or erasing is performed. Calculate the volume “A” of the recorded broadcast program data that needs to be deleted, and compare it with the volume “B” of the erasable broadcast program data. By erasing the possible broadcast program data and terminating the process, free space in the program recording unit 7C can be secured, and a new broadcast program can be stored in the program recording unit 7C.
- Step S8; N the program in the program management information recording unit 7A
- the recompressible broadcast program capacity is calculated based on the management information (step S9).
- the calculated capacity is represented as re-capable capacity “C”.
- Step S 10 The value obtained by combining the value of “B” and the value of “C” is compared with the value of "A”, and the value obtained by combining the value of "B” and the value of “C” Is determined to be a force that is greater than or equal to the value of “A” (step S 10).
- Step S10; Y When the value obtained by adding the value of “B” and the value of “C” is greater than or equal to the value of “A”, (Step S10; Y), it instructs the re-encoding unit 9 to re-encode (format, bit rate, etc.) the corresponding broadcast program data (Step S12).
- the re-encoding unit 9 reads the broadcast program data from the storage unit 7 with reference to the HD management information in the storage unit 7, and re-encodes the broadcast program data into the specified format. (Step S14).
- the re-encoded broadcast program data is re-recorded in the HD management information in the storage unit 7, and the HD management information is updated (step S15).
- the re-encoding unit 9 notifies the program management unit 8 of the completion of the re-encoding process. Notification (step S16). Then, the program management unit 8 updates the program management information (step S17), and proceeds to step S18. At this time, in the process of step S18, the program management unit 8 instructs the storage unit 7 to delete the broadcast program data if there is any erasable broadcast program data as a result of the process of step S6. Go to 19.
- the The broadcast program data is re-encoded in a predetermined format, and if there is broadcast program data that can be erased, the corresponding broadcast program data is erased to secure the free space in the program recording unit 7C, and a new broadcast program is created. It can be stored in the program recording section 7C.
- the re-encoding format is determined, for example, according to the re-encoding 'erasure policy (regulation) to be applied to each broadcast program class classified according to the user's preference as shown in FIG.
- step S10 if the value obtained by adding the value of “B” and the value of “C” is smaller than the value of “A” (step S10; N), The program management unit 8 reviews the conditions for selecting broadcast program information to be deleted or recompressed (step S11), and returns to step S7.
- the review of the selection condition refers to, for example, performing a process such as temporarily shortening a period of the recoding process performed stepwise.
- the above-mentioned sequential re-encoding processing mode is a form in which the broadcast program data recorded on the program recording unit 7C is compressed while the broadcast program is re-coded step by step as necessary. It is.
- the initial simultaneous encoding processing mode means that re-encoding processing is performed in advance in a plurality of formats assumed at the time of the first recording, and then, when necessary for subsequent re-encoding processing, high-quality data is sequentially deleted. It is a form.
- the hierarchical encoding processing mode refers to a broadcast program using a hierarchical encoding technique at the time of the first recording. Is encoded into a predetermined format, and is deleted from the upper layer when a subsequent re-encoding process is necessary.
- the broadcast program data is re-coded according to the preference of the user, so that the broadcast programs which are less necessary for the user are sequentially arranged. Re-encoding can be performed, and the capacity of a recording medium for recording a new broadcast program can be secured without deteriorating the quality of the broadcast program that is important to the user.
- the user's preference degree is determined by the user selecting from at least one or more options, the user himself / herself can determine the format of the re-encoding process. An important broadcast program is retained without deteriorating the quality, and a broadcast program that is less necessary for the user can be retained or deleted in a predetermined format by recoding.
- the user's preference is determined based on a learning function that derives the user's preference from the past usage of the user, the user's preference can be re-established from the past usage of the user. Since the encoding format is determined, the broadcast programs that are important to the user are maintained without loss of quality, reflecting the tastes of the user, and the broadcast programs that are less necessary for the user are in a predetermined format. It can be retained or erased by re-coding.
- the attributes of the broadcast program are determined by learning user preferences. Judges can maintain the quality according to them.
- the re-encoding process is performed at least in the compression format and the bit
- a broadcast program can be recorded by reflecting the user's preference.
- the broadcast program data recorded according to the user's preference may be deleted by the program management unit 8. [0103] In this way, a broadcast program that is unnecessary for the user can be deleted, so that the capacity of the program recording section 7C for newly recording a broadcast program can be secured.
- a program corresponding to the flowcharts shown in FIGS. 5 to 9 is recorded on an information recording medium such as a flexible disk or a hard disk, or obtained via a network such as the Internet, and is By executing the program on the CPU, the general-purpose CPU can also function as the program management unit 8.
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US10/594,906 US20070286571A1 (en) | 2004-03-31 | 2005-03-11 | Information Recorder and Information Recording Program |
JP2006511933A JP4195059B2 (ja) | 2004-03-31 | 2005-03-11 | 情報記録装置及び情報記録用プログラム |
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JP2004-108241 | 2004-03-31 | ||
JP2004108241 | 2004-03-31 |
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JP2007142645A (ja) * | 2005-11-16 | 2007-06-07 | Mitsubishi Electric Corp | 番組録画再生装置およびプログラム |
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JP4984739B2 (ja) * | 2006-08-23 | 2012-07-25 | ソニー株式会社 | 情報処理装置および方法、並びに、プログラム |
JP2015156579A (ja) * | 2014-02-20 | 2015-08-27 | Necパーソナルコンピュータ株式会社 | 情報処理装置、制御方法、及びプログラム |
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WO2002028100A1 (fr) * | 2000-09-29 | 2002-04-04 | Kabushiki Kaisha Toshiba | Appareil d'enregistrement/de lecture et procede de programmation d'enregistrement de l'appareil d'enregistrement/de lecture |
JP2002271744A (ja) * | 2001-03-07 | 2002-09-20 | Nec Corp | 番組記録装置及び方法 |
JP2003109300A (ja) * | 2001-09-28 | 2003-04-11 | Toshiba Corp | 映像記録再生方法及び装置 |
JP2003264767A (ja) * | 2001-12-28 | 2003-09-19 | Matsushita Electric Ind Co Ltd | データ再生装置及びデータ再生方法 |
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US20030093790A1 (en) * | 2000-03-28 | 2003-05-15 | Logan James D. | Audio and video program recording, editing and playback systems using metadata |
AU2002239297A1 (en) * | 2000-11-16 | 2002-06-03 | Mydtv, Inc. | System and methods for determining the desirability of video programming events |
CN100480977C (zh) * | 2001-11-29 | 2009-04-22 | 松下电器产业株式会社 | 记录装置、记录程序和记录方法 |
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2005
- 2005-03-11 WO PCT/JP2005/004310 patent/WO2005098852A1/ja active Application Filing
- 2005-03-11 JP JP2006511933A patent/JP4195059B2/ja not_active Expired - Fee Related
- 2005-03-11 US US10/594,906 patent/US20070286571A1/en not_active Abandoned
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WO2002028100A1 (fr) * | 2000-09-29 | 2002-04-04 | Kabushiki Kaisha Toshiba | Appareil d'enregistrement/de lecture et procede de programmation d'enregistrement de l'appareil d'enregistrement/de lecture |
JP2002271744A (ja) * | 2001-03-07 | 2002-09-20 | Nec Corp | 番組記録装置及び方法 |
JP2003109300A (ja) * | 2001-09-28 | 2003-04-11 | Toshiba Corp | 映像記録再生方法及び装置 |
JP2003264767A (ja) * | 2001-12-28 | 2003-09-19 | Matsushita Electric Ind Co Ltd | データ再生装置及びデータ再生方法 |
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JP2007142645A (ja) * | 2005-11-16 | 2007-06-07 | Mitsubishi Electric Corp | 番組録画再生装置およびプログラム |
Also Published As
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US20070286571A1 (en) | 2007-12-13 |
JPWO2005098852A1 (ja) | 2008-03-06 |
JP4195059B2 (ja) | 2008-12-10 |
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