WO2004073305A1 - データ処理装置 - Google Patents
データ処理装置 Download PDFInfo
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- WO2004073305A1 WO2004073305A1 PCT/JP2004/001506 JP2004001506W WO2004073305A1 WO 2004073305 A1 WO2004073305 A1 WO 2004073305A1 JP 2004001506 W JP2004001506 W JP 2004001506W WO 2004073305 A1 WO2004073305 A1 WO 2004073305A1
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- Prior art keywords
- recording
- encoding
- time
- data
- remaining
- Prior art date
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Classifications
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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
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/488—Data services, e.g. news ticker
- H04N21/4882—Data services, e.g. news ticker for displaying messages, e.g. warnings, reminders
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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
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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
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
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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
- H04N9/7925—Processing of colour television signals in connection with recording for more than one processing mode for more than one standard
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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
- H04N9/80—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 invention relates to an apparatus capable of recording a plurality of types of input signals such as an analog television signal and a digital television signal on a recording medium.
- a recording device described in Japanese Unexamined Patent Application Publication No. 7-23339 is a recording apparatus that receives a video signal of a digital stream and directly records the signal on a recording medium. Select an appropriate mode (recording processing path) from mode 1, recording mode 2 for recording after decoding the digital stream, and recording mode 3 for recording after decoding and recording in the inner mode. To record on a recording medium.
- the remaining recordable time may be calculated. This calculation is generally performed by dividing the remaining capacity of the recording medium by the recording rate.
- a recording apparatus described in Japanese Patent Application Laid-Open No. 11-32-89-37 when the compression encoding is performed by a variable bit rate whose recording rate fluctuates, the current The remaining time is calculated and displayed based on the compression bit rate and the remaining capacity.
- Japanese Patent Application Laid-Open No. 11-111,979 discloses that a data capacity or a data rate can be detected based on program information transmitted together with video data and recorded on a recording medium. There is disclosed a technique for judging whether or not this is the case.
- an MPEG encoding method is generally used.
- a video signal is transmitted as a well-known MPEG transport stream and recorded on a Blu-ray disc (BD) using a blue-violet laser.
- the video signal is recorded on the DV as a well-known MPEG program stream.
- These MPEG streams are configured by multiplexing respective encoded streams obtained by compressing and encoding information such as video and audio.
- the bit rate of the signal varies depending on the video and audio quality.
- the recording device uses a predetermined fixed data rate for any of the recording methods. Because the time was calculated, the exact remaining time could not be determined. For example, in a mode that directly records a digital stream (stream recording), the remaining data cannot be calculated accurately at a fixed data rate because the data rate can change. In stream recording, the recording device cannot control the data rate of the data stream. Therefore, if the data is erased later, it is not possible to guarantee the recording time corresponding to the erased time. Therefore, if the remaining time after erasure is calculated by the same method, there is a problem that an accurate remaining time cannot be obtained.
- the present invention has been made in view of the above-described problems, and has as its object to determine a recording method based on the type of an input signal and the type of a recording medium, and to calculate a remaining amount according to the recording method. Decide and calculate the exact remaining time.
- the data processing device can write and / or read program data on a plurality of types of recording media.
- the data processing device includes: a receiving unit that receives a signal related to the program data; a determining unit that determines a type of a loaded recording medium; a stream recording process that does not perform decoding and encoding of the program data; and A recording processing unit that records, on the recording medium, program data obtained from the signal via at least one of an encoding recording process for encoding the program data; and the recording medium.
- a selecting unit that selects one of the stream recording process and the encode recording process according to the type of the recording medium; and a remaining capacity of the recording medium and a transmission rate of the program data according to the selected recording process. Selecting one of the first remaining amount calculation process based on the data and the second remaining amount calculation process based on the coding rate, and recording on the recording medium by the selected calculation process. Remaining time available And a display unit for displaying the calculated remaining time.
- the recording medium has a different type according to a recording capacity
- the receiving unit receives one of a digital signal and an analog signal
- the recording processing unit has a recording capacity equal to or less than a predetermined reference capacity.
- the encoding recording process may be selected for a recording medium having the same, and the calculation unit may select a second remaining amount calculation process.
- the encoding and recording process includes a first encoding and recording process for encoding after decoding the program data, and a second encoding and recording process for encoding the program data.
- the receiving unit receives the digital signal
- the first encoding and recording process is selected.
- the receiving unit receives the analog signal
- the second encoding and recording process is selected.
- the remaining time may be calculated by performing the second remaining amount calculating process based on the recording rate and the recorded time indicating the time of performing the recording process.
- a memory for storing a reference recording time indicating a maximum time during which the program data can be recorded on the unused recording medium, wherein the calculation unit normalizes the recorded time using the recording rate
- the reference recorded time is calculated, the reference recorded time is subtracted from the reference recording time stored in the memory to obtain a reference remaining time, and the reference remaining time is calculated based on the reference remaining time and the encoding rate.
- the remaining time may be calculated.
- the recording medium is different in type according to a recording capacity
- the receiving unit receives a digital signal
- the recording processing unit is configured to record a recording medium having a recording capacity equal to or more than a predetermined reference capacity.
- the stream recording process may be selected, and the calculation unit may select a first remaining amount calculation process.
- the signal includes program information that specifies a transmission rate and a broadcast time of the program data, and further includes a controller that extracts the program information from the received signal, wherein the calculation unit includes the extracted transmission
- the remaining time may be calculated based on the rate and the broadcast time.
- the calculating unit calculates each data amount of one or more program data based on the transmission rate and the broadcast time, and calculates an accumulated data amount by sequentially adding the respective data amounts until exceeding the remaining capacity. , And determine the cumulative broadcast time by sequentially adding the broadcast times corresponding to the added data amount, and subtract the broadcast time corresponding to the data amount exceeding the remaining capacity from the cumulative broadcast time. The remaining time may be obtained.
- the recording medium has a different type according to a recording capacity
- the receiving unit receives an analog signal
- the recording processing unit is configured to record a recording medium having a recording capacity equal to or more than a predetermined reference capacity.
- the encoding process may be selected, and the calculation unit may further calculate the remaining time by performing the second remaining amount calculation process based on the remaining capacity of the recording medium.
- the display unit may further display information for identifying a recording process selected by the recording processing unit.
- the display unit may be configured to perform the encoding recording process by the recording processing unit. If is selected, at least one of the coding rate, resolution, and frequency may be displayed.
- the data processing method can write and Z or read program data on a plurality of types of recording media.
- the data processing method includes: a step of receiving a signal related to the program data; a step of determining a type of a loaded recording medium; a stream recording process that does not decode and encode the program data; Recording at least one program data obtained from the signal on the recording medium through at least one of an encoding and recording process for encoding the program data; and Selecting one of the stream recording process and the encode recording process; and a first based on the remaining capacity of the recording medium and the transmission rate of the program data in accordance with the selected recording process.
- One of the remaining amount calculation process and the second remaining amount calculation process based on the encoding rate is selected, and the selected remaining amount is recorded on the recording medium by the selected calculation process. Calculating the remaining time possible, and displaying the calculated remaining time.
- the recording medium has a different type according to a recording capacity
- the receiving step receives one of a digital signal and an analog signal
- the recording step includes a recording capacity equal to or less than a predetermined reference capacity.
- the encoding process may be selected for a recording medium having the same, and the step of calculating may select a second remaining amount calculation process.
- the encoding and recording process includes the steps of: A first encoding and recording process for encoding the program data; and a second encoding and recording process for encoding the program data, wherein the step of recording is performed when the receiving unit receives the digital signal.
- the first encoding recording process is selected, and when the receiving unit receives the analog signal, the second encoding recording process is selected, and the calculating step further performs a recording rate and a recording process.
- the remaining time may be calculated by performing the second remaining amount calculation process based on the recorded time indicating the time that has elapsed.
- the method further includes a step of storing a reference recording time indicating a maximum time in which the program data can be recorded on the unused recording medium. Calculating a reference recorded time obtained by normalizing the time, subtracting the reference recorded time from the reference recording time stored in the memory to obtain a reference remaining time, and calculating the reference remaining time and the encoding record. The remaining time may be calculated based on the time.
- the recording medium has a different type according to a recording medium, the receiving step includes receiving a digital signal, and the recording step includes a step of recording a recording medium having a recording capacity equal to or more than a predetermined reference capacity.
- the stream recording process may be selected, and the calculating step may select a first remaining amount calculation process.
- the signal includes program information that specifies a transmission rate and a broadcast time of the program data, and further includes extracting the program information from the received signal, and the calculating includes: The remaining time may be calculated based on the obtained transmission rate and the broadcast time.
- the calculating step includes calculating each data amount of one or more programs based on the transmission rate and the broadcast time, and calculating an accumulated data amount by sequentially adding the respective data amounts until exceeding the remaining capacity.
- the cumulative broadcast time obtained by sequentially adding the respective broadcast times corresponding to the added data amount is obtained, and the broadcast time corresponding to the data amount exceeding the remaining capacity is subtracted from the cumulative broadcast time to obtain the remaining broadcast time. You may ask for it as time.
- the recording medium has a different type according to a recording capacity
- the receiving step includes receiving an analog signal
- the recording step includes a recording medium having a recording capacity equal to or more than a predetermined reference capacity.
- the step of selecting the encode recording process and calculating may further include performing the second remaining amount calculation process based on the remaining capacity of the recording medium to calculate the remaining time.
- the displaying step may further display information for identifying the recording process selected by the recording processing unit.
- the step of displaying may include displaying at least one of the encoding rate, the resolution, and the frequency when the encoding processing is selected by the recording processing unit.
- the computer program according to the present invention is executed by a computer of a data processing device that writes and / or reads or writes program data to and from a plurality of types of recording media.
- the conversion method executed by the computer includes a step of receiving a signal relating to the program data, a step of determining a type of a loaded recording medium, and a stream recording without decoding and encoding the program data. Processing, and a step of recording program data obtained from the signal on the recording medium through at least one of an encoding recording process for encoding the program data, and a type of the recording medium.
- FIG. 1 is a diagram showing a configuration of a function block of a data processing device 10 according to the first embodiment.
- FIG. 2 is a diagram illustrating an example of a configuration of a functional block of the Serfen code recording processing unit 107.
- FIG. 3 is a diagram showing an example of a configuration of a functional block of the re-encode recording processing unit 106.
- FIG. 4 is a diagram illustrating an example of the control table.
- FIG. 5 (a) shows an example of characters that can be displayed on the display unit 114. You.
- FIGS. 5B to 5D are diagrams showing examples of display patterns.
- FIG. 6 is a diagram showing the procedure of the remaining amount calculation process.
- FIG. 7 is a diagram showing a procedure for determining a recording process.
- FIG. 8 is a diagram showing a calculation procedure of the remaining amount calculation process (lb).
- FIG. 9 is a diagram showing an example of program information stored in the program information table 420.
- FIG. 10 is a diagram showing the relationship between the recording time of a program and the amount of data to be recorded.
- FIG. 11 is a diagram showing a calculation procedure of the remaining amount calculation process (1c).
- FIG. 12 is a diagram showing a data structure of program data recorded on the recording medium 112 by the recording processing by the recording processing unit 121 described above.
- FIG. 13 is a diagram showing a configuration of a data processing device 20 having a reproducing function.
- FIG. 14 is a diagram showing a procedure of a remaining amount calculation process based on the type of the recording medium 112 and the type of the recording process.
- FIG. 15 is a diagram showing a procedure of a remaining amount calculation process based on the type of the recording medium 112 and the type of the input signal.
- FIG. 16 (a) is a diagram showing a display unit 114 having a recording mode display function.
- FIGS. 16B to 16D are diagrams showing examples of display patterns.
- FIG. 17 shows a mode determination procedure of the data processing apparatus 10 according to the present embodiment. It is a figure which is a flowchart which shows an order.
- FIG. 18 is a diagram illustrating an example of the control table.
- FIG. 19 is a diagram showing a procedure for determining a recording process in the manual mode recording process.
- FIGS. 20 (a) to 20 (c) show a display unit 1 having a recording mode display function.
- FIG. 14 is a diagram illustrating an example of 14 display patterns.
- FIG. 14 is a diagram illustrating an example of 14 display patterns.
- FIG. 21A is a diagram illustrating an example of a display tube of the display unit 114.
- FIGS. 21 (b) to 21 (g) are diagrams showing possible display states of the display unit 114.
- FIG. 21A is a diagram illustrating an example of a display tube of the display unit 114.
- FIGS. 21 (b) to 21 (g) are diagrams showing possible display states of the display unit 114.
- FIG. 21A is a diagram illustrating an example of a display tube of the display unit 114.
- FIGS. 21 (b) to 21 (g) are diagrams showing possible display states of the display unit 114.
- FIG. 22 is a diagram showing a control table when the auto mode is set.
- FIG. 23 is a diagram showing a control table when the BXP mode is set.
- FIG. 24 is a diagram showing a control table when the XP mode is set.
- FIG. 25 is a diagram showing a control table when the SP mode is set.
- FIG. 26 is a diagram showing a control table when the LP mode is set.
- El 27 is a diagram showing a display pattern of the display unit 114 according to the type of the recording medium 71 12 when the auto mode is set, the type of the input source, and the like.
- FIG. 28 is a diagram illustrating a display pattern of the display unit 114 according to the type of the recording medium 112 and the type of the input source when the BXP mode is set.
- FIG. 29 is a diagram showing the display pattern of the display unit 114 according to the type of the recording medium 112 and the type of the input source when the XP mode is set.
- FIG. 30 is a diagram showing a display pattern of the display unit 114 according to the type of the recording medium 112, the type of the input source, and the like when the SP mode is set.
- FIG. 31 is a diagram showing a display pattern of the display unit 114 according to the type of the recording medium 112 and the type of the input source when the LP mode is set.
- FIG. 32A shows an example of characters that can be displayed on the display unit 114.
- FIG. 32A shows an example of characters that can be displayed on the display unit 114.
- FIGS. 32 (b) to ( ⁇ ) are diagrams showing the display patterns of the display unit 114.
- FIG. 32 (b) to ( ⁇ ) are diagrams showing the display patterns of the display unit 114.
- FIG. 33 (a) shows an example of characters that can be displayed on the display unit 114.
- FIG. 33 (a) shows an example of characters that can be displayed on the display unit 114.
- FIGS. 33 (b) to (f) show examples of characters that can be displayed on the display unit 114.
- FIG. 1 shows a configuration of functional blocks of a data processing device 10 according to the present embodiment.
- the data processing device 10 can write, z, or read program data obtained based on a digital stream signal or an analog television signal on a plurality of types of recording media having different recording capacities.
- Multiple types of recording media have a recording capacity of 4.7 GB, for example.
- DVD-RAM media recorded at a recording rate of 22 Mbps
- ultra-high density such as B-ray discs (BD) with a recording capacity of 23 GB and recorded at a recording rate of 33 Mbps RAM media
- hard disks with tens to hundreds of gigabytes or more capacity, and the like.
- the ultra-high-density RAM media may be a laser having a shorter wavelength than a blue laser or the like, and the data may be retained by a mark or pit on the media.
- the data processing device 10 records data by selecting one recording process from among a plurality of recording processes having different recording rates, encoding methods, and the like according to the type of the recording medium 112 and the type of the input signal. can do. Further, the data processing device 10 selects a remaining time (hereinafter, simply referred to as “remaining time”) that can be recorded on the recording medium 112 from a plurality of remaining amount calculation processes according to the selected recording process. You can ask. The reason why a plurality of remaining amount calculation processes are required is that the remaining time of the recording medium 112 differs depending on the recording process. The calculated remaining time is displayed for the user to confirm, or can be used by the overnight processing device 10 in a future recording operation.
- a remaining time hereinafter, simply referred to as “remaining time”
- FIG. 1 shows the recording medium 112, if the recording medium 112 is a hard disk, it is a component of the data processing device 110, and the recording medium 112 is a removable medium such as an optical disk. It is not a component of the data processor 10 if it is a suitable recording medium.
- the recording medium 112 is a DVD_RAM medium or an ultra-high density RAM medium. Therefore, the data processor 10 is a well-known optical device. Functions as a recorder. It is also assumed that the signals input to data processing device 10 are digital stream signal 101 and analog television signal 102.
- the digital stream signal 101 is transmitted by, for example, BS digital broadcasting.
- BS digital broadcasting video is compression-encoded by MPEG2 video encoding
- audio signals are compression-encoded by AAC encoding
- video streams and audio streams are multiplexed as MPEG transport streams. Transmitted.
- the analog television signal 102 is, for example, a television signal transmitted by analog terrestrial broadcasting.
- the data rate of the digital stream signal of the current BS digital broadcasting Hi-Vision broadcast is 24 Mbps. Therefore, high-definition digital stream signals (eg, MPEG transport stream) cannot be recorded directly on DVD-RAM media with a recording rate of 22 Mbps, but are recorded directly on ultra-high-density RAM media. It is possible. General standard resolution digital stream signals and analog signals can be directly recorded on both DVD-RAM media and ultra-high-density RAM media.
- each frame data is compression-coded using the pixel value of each frame constituting the video.
- an intra-frame encoding process that encodes image data using intra-frame correlation of pixel values
- an image data encoding process that uses inter-frame correlation of pixel values.
- An inter-frame encoding process for encoding one night is adaptively switched.
- encoded data corresponding to a plurality of continuous frames is treated as one unit.
- the data processor 10 has a signal selector 103, a processing selector 104, a system controller 108, a channel setting unit 109, a recording head 110, and a media discriminator 110.
- a signal selector 103 a processing selector 104
- a system controller 108 a channel setting unit 109, a recording head 110, and a media discriminator 110.
- Remaining capacity detector 1 1 3 Display 1 1 4, Remaining calculator 1 1 5
- Record data detector 1 1 9, Data rate detector 1 2 0, Record processor 1 2 1, Table memory 1 22 and a recording mode setting unit 123.
- the system controller 108 is a central processing unit (CPU) that controls the operation of the entire data processing device 10. The operation of the system controller 108 will be described as appropriate in connection with the description of each component.
- the signal selector 103 is controlled by the system controller 108, and selects and outputs the digital stream signal 101 or the analog television signal 10 according to the selected channel information. In the case of the channel transmitted by the BS broadcast wave, the signal selector 103 outputs the digital stream signal 101. On the other hand, in the case of an analog terrestrial broadcast channel, the signal selector 103 outputs a video signal and an audio signal as the analog television signal 102.
- the processing selector 104 is controlled by the system controller 108 and selects one of a plurality of recording processes to be executed in the recording processor 121. In the present embodiment, there are three types of recording processing. And
- the channel setting unit 109 is an interface for the user to switch the channel to be recorded, and is a button, a remote control, or a graphical display on the front panel of the data processing device 10. A user interface. The selected channel information is notified to the system controller 108.
- the recording head 110 is an optical pickup in the present embodiment.
- the optical pickup can irradiate a laser beam having a wavelength corresponding to the type of the recording medium 112 to the recording medium 711 to record data, and can also reflect light reflected from the recording medium 112. Detect and read out the data.
- the media determination unit 111 determines the type of the optical disc loaded in the data processing device 10. In the present embodiment, it is determined whether any one of the DVD-RAM media and the ultra-high-density RAM media is inserted. For example, discriminating information for specifying the type of recording medium is recorded in the inner peripheral portion of the recording medium at the time of manufacturing, and the media discriminating unit 111 optically discriminates the discriminating information using the recording head 110. You just need to read out. Alternatively, since the intensity of the reflected light differs depending on the type of the recording medium when the laser light is irradiated, the intensity may be detected and discriminated by the media discriminating unit 11.
- the determination may be made based on the shape of the cartridge which differs depending on the type of the recording medium. In each case, the optical characteristics and physical properties of the loaded optical disc What is necessary is just to detect using a characteristic.
- the remaining capacity detection unit 113 detects the recordable capacity of the recording medium 112 as the remaining capacity. Specifically, the remaining capacity detection unit 113 may read the management information recorded on the recording medium 112 and detect the management information based on the data size of the recorded data.
- the display unit 114 displays the remaining time calculated by the remaining amount calculation unit 115 and notified.
- the display unit 114 displays information for specifying the selected and executed processing of the recording processing unit 121.
- the display unit 114 is, for example, an electric display tube, a liquid crystal panel, or a television screen installed on the front panel.
- the remaining amount calculation unit 1 15 calculates the remaining time that can be recorded on the recording medium 7 1 1 2.
- the remaining amount calculation unit 115 can execute a plurality of remaining amount calculation processes. An instruction on which calculation process to perform the calculation is received from the system controller 108, and based on the instruction. Then, select and execute the remaining amount calculation process.
- the system controller 108 instructs a remaining amount calculation process corresponding to the recording process selected in the recording processing unit 121.
- the remaining capacity calculation process can be broadly divided into a remaining capacity calculation process based on the remaining capacity of the recording media 112 and the transmission rate of the program data, and a remaining capacity calculation process based on the coding rate. I can do it.
- the recording processing unit 122 performs three types of remaining amount calculation processing. A specific description of each remaining amount calculation procedure will be described later.
- the recording data detection unit 119 is used as information (management information) of each recording data recorded on the recording medium 112 when recording each recording data. Interval and recording rate.
- the data rate detector 120 detects the data rate of the input digital stream signal.
- a data rate may be detected by measuring the data amount of a digital stream signal transmitted within a predetermined period.
- the program data rate may be obtained from the section data of an EIT (event information table) packet in a transport stream transmitted as program information.
- the recording processing unit 121 includes a stream recording processing unit 105, a re-encoding recording processing unit 106, and a Serfen code recording processing unit 107.
- the recording processing section 122 converts the digital stream signal selected by the signal selector 103 or the video signal and the audio signal signal in the analog television signal into the stream recording processing section 105 and the re-processing section. It is output through the processing in the encoding recording processing unit 106 and the self-encoding recording processing unit 107.
- the stream recording processing unit 105 directly records the digital stream signal of the input program data on the recording medium 112 without performing decoding and encoding.
- the re-encode recording processing unit 106 decodes the input digital stream signal once, re-encodes it at an encoding rate different from the original to generate an encoded stream, and generates a recording medium. To record. The detailed description of the re-encode recording processing unit 106 will be described later with reference to FIG.
- the Serfen code recording processing unit 107 receives the input video signal and In addition, it encodes the program data obtained from the audio signal and the audio signal to generate an encoded stream, and records the encoded stream on the recording medium 112.
- This encoding stream is the MPEG Program Stream (PS) or the VI PEG Transport Stream (TS).
- PS MPEG Program Stream
- TS VI PEG Transport Stream
- recording the program stream in the cell phencode recording processing unit 107 will be referred to as PS cell phen code recording processing
- recording the transport stream will be referred to as TS cell phen code recording processing.
- the input to the SELFEN code recording processor 107 is one path, but the video signal and the audio signal may be input through separate paths. A detailed description of the self-encoding recording processing unit 107 will be described later with reference to FIG.
- the table memory 122 stores a control table 419 and a program information table 420.
- the control table 419 is a table (for example, FIG. 4) that describes the correspondence between the input signal, the media, the recording process, and the remaining amount calculation.
- the program information table 420 is information for specifying a program, a transmission rate of a signal including program data, a start time and an end time of the program, and the like. The broadcast time of the program may be described instead of the end time.
- Such information is stored, for example, in a section of an EIT (event information table) packet transmitted as program information when the digital stream signal is a transport stream. As will be described later, for example, FIG.
- the recording mode setting section 123 is an interface for setting which of the recording time, the video quality and the like is to be emphasized for recording.
- the recording mode setting unit 123 may be realized by hardware or software, similarly to the channel setting unit 109.
- the ⁇ recording mode '' referred to below is a concept including a recording type such as stream recording, self-encoding recording, and re-encoding recording, and a recording time type in self-encoding or re-encoding recording. .
- a long recording mode (encoding rate: 2.5 Mb ps) that allows long recordings with low image quality, Rate: 15 Mb ps), which is the standard time recording mode (encoding rate: 5 Mbps) located between them.
- the recording time mode is
- FIG. 2 shows an example of a configuration of a functional block of the self-encoding recording processing unit 107.
- the self-encoding recording processing unit 107 encodes the input video signal and audio signal and outputs an encoded stream 216.
- the self-encoding recording processing unit 107 includes a video encoder 201, an audio encoder 202, and a system encoder. It has a coder 207.
- the video encoder 210 encodes the input video signal 210 according to a predetermined video encoding parameter and outputs a video stream 211.
- the video coding parameter includes a bit rate or a video resolution as an indicator of the coding compression rate, and is supplied by the system controller 108.
- an MPEG2 video encoding method or the like may be used, but it is not limited to this.
- the audio encoder 202 encodes the input audio signal 211 according to an audio encoding parameter, and outputs an audio stream 213.
- the audio coding parameters include a bit rate indicating a compression ratio, a sampling frequency, and the like, and are supplied by the system controller 108.
- examples of the audio encoding method include an MPEG 1 audio layer 2 method, but are not limited thereto.
- uncompressed audio coding for example, a PCM signal used in CD audio may be output as an audio stream 213.
- the system encoder 2 07 multiplexes the video stream 2 12 and the audio stream 2 13 to generate and output an encoded stream 2 16.
- the system encoder 205 includes a PS encoder 204 that multiplexes and generates a PS, and a transport stream encoder 205 that generates a TS.
- the system stream selector 206 is the system controller.
- the MPEG program stream 214 or the MPEG transport stream 215 is selected and output according to the control signal from 108.
- one of the encoders 204 and 205 may operate according to an instruction from the system controller 108. Furthermore, it is not necessary to provide two types of hardware as encoders 204 and 205. The software to be executed by one piece of hardware may be switched to perform the encoding process corresponding to the encoders 204 and 205.
- FIG. 3 shows an example of the configuration of a function block of the re-encoding recording processing unit 106.
- the re-encoding recording processing unit 106 decodes the input encoding stream 310, and then performs the encoding process again using an encoding parameter different from the initial one. And output the encoded stream.
- the re-encoding recording processor 106 is a transport stream (TS) decoder 301, video decoder 302, resolution discriminator 303, downconverter 304, video encoder 305, audio decoder 306, an audio encoder 307 and a system encoder 308.
- TS transport stream
- the TS decoder 301 analyzes the input encoded digital stream signal TS310, and converts it into a video stream 311. Separate into one stream 3 1 2
- the video decoder 302 decodes the video stream 311 and outputs a decoded video 3113.
- decoding is performed according to the MPEG2 video standard.
- the resolution classifier 303 detects the video resolution of the video stream. For example, assuming the number of horizontal samples X the number of vertical samples X frame frequency, 1920 x 1080 x 29.97, 1440 x 1080 x 29.97, 1280 x 7 Detects resolutions such as 20x59.94, 720x480x79.94, 720x480x29.97. Resolution can be detected by reading the resolution information written in the video stream management information. In the case of MPEG video, resolution information is described in the sequence header.
- the down-converter 304 converts the resolution of the decoded video 313 into a predetermined resolution and outputs a down-converted video 314.
- the resolution of 144 ⁇ 1080 ⁇ 29.97 is converted to the resolution of 720 ⁇ 480 ⁇ 29.97. This is achieved by a mouth-to-pass filter process and a sampling process. If the resolution of the decoded video 3 13 is 720 ⁇ 480 ⁇ 29.97, the resolution is not changed and output as it is.
- the video encoder 305 encodes the converted video data 314 and outputs a video stream 315.
- the encoding parameters in the encoding process are supplied by the system controller 108. Encoding parameters include the encoding compression rate, etc. Video stream 311 which was included in the original TS.
- the encoding method may be an MPEG 2 video encoding method or another method.
- the audio decoder 303 decodes the audio stream 312 and outputs the decoded audio stream 316.
- the audio decoder 303 performs decoding processing according to the AAC standard.
- the audio encoder 307 encodes the decoded audio data 316 in accordance with the encoding parameters supplied by the system controller 108 to form an audio stream 317. Output.
- the encoding method may be an encoding method such as MPEG 1 audio layer 2 method, but is not limited to this.
- the system encoder 308 multiplexes the video stream 315 and the audio stream 317 to generate and output an encoding stream 318.
- the system encoder 308 selectively outputs either T S or P S, similarly to the system encoder 207 shown in the cell fen code recording unit in FIG. The selection is controlled by a control signal from the system controller 108.
- the input video and audio coding parameters are the same, it is only necessary to convert the MPEG transport stream into an MPEG program stream without performing video and audio re-encoding processing.
- the video stream 3 11 and the audio stream 3 12 are input to the system encoder 3 08 and the What is necessary is just to perform a stem encoding process.
- the decoded signal obtained by the decoding process is re-encoded, but the present invention is not limited to this.
- only part of the decoding process may be performed, and only the decoded portion may be re-encoded.
- DCT discrete cosine transform
- a decoded video is obtained by inversely quantizing a variable-length decoded symbol to obtain a DCT coefficient, and then performing an inverse DCT transform.
- Signal is obtained.
- a DCT coefficient obtained by the DCT conversion process is quantized, and a variable-length encoding process is performed to obtain a video stream.
- the video decoder 302 may perform processing up to the point where it returns to the DCT coefficient.
- the video encoder 305 obtains a video stream 315 by subjecting the decoded DCT coefficients to quantization processing according to the encoding parameters and performing variable-length encoding processing.
- the inverse DCT conversion processing of the video decoder 302 and the DCT conversion processing of the video encoder 305 can be omitted.
- re-encoding processing may be performed using a motion vector included in an input video stream. By doing this, the video It is possible to omit the motion vector detection processing in the encoder 305.
- components for encoding processing in the Serfen code recording processing unit 107 and the re-encoding recording processing unit 106 may be shared.
- recording PS is referred to as PS re-encoding recording processing
- recording TS is referred to as TS re-encoding recording processing.
- the recording processing section 121 performs the recording processing selected by the selection operation of the processing selector 104.
- the selection of the recording process is performed based on the type of the input signal and the type of the recording medium 112.
- a signal recording process when a digital stream signal and an analog television signal are input will be described.
- the relationship between the selection processing and the recording processing related to the following description is as described in the control table 419 of the table memory 122.
- FIG. 4 shows an example of the control table 4 19.
- the control table 4 19 describes the correspondence between the input signal, the media, the recording process, and the remaining amount calculation.
- the system controller 108 may instruct each component according to the control table 419, or realize the processing described below without providing such a table. An instruction may be output.
- a digital stream signal is input to the data processing device 10.
- the system controller 108 selects a process.
- the controller 104 is controlled to set the path so that the signal is transmitted to the re-encoding recording processing unit 106.
- the re-encoding recording processing unit 106 converts TS transmitted in the BS digital broadcast into PS and records it on the DVD-RAM medium. This PS is recorded in a format conforming to, for example, the DVD video recording standard. If the input video signal is a Hi-Vision signal, the re-encoding recording processing unit 106 converts the signal to a standard television resolution (720 ⁇ 480 ⁇ 29.
- the system controller determines whether the recording medium 71 1 2 is an ultra-high-density RAM medium by the media determining unit 1 11 1, the system controller
- the control unit 108 controls the processing selector 104 to set a signal path so that the signal is transmitted to the stream recording processing unit 105.
- the input TS is directly recorded on the ultra-high-density RAM media without decoding or encoding. No new encoding noise is generated because the re-encoding process is not performed. Therefore, it is necessary to record data that is faithful to the input. Can be.
- a TS includes a plurality of programs
- data of a specific program can be extracted and recorded by using a bucket ID attached to each bucket of the TS. Since this processing does not involve decoding or encoding, it can be said that this processing is also stream recording processing.
- an analog television signal is input to the data processor 10.
- the system controller 108 When the recording medium 111 is loaded into the data processing device 110, the system controller 108 operates regardless of the type of the recording medium recognized by the media discriminating unit 111. By controlling the selector 104, the path is set so that the signal is transmitted to the self-encoding recording processing unit 107. However, when the recording medium 112 is a DVD-RAM medium, the system controller 108 causes the system encoder 207 to output a PS in a format conforming to the DVD video recording standard. . On the other hand, when the recording medium 71 12 is an ultra-high-density RAM medium, the system encoder 207 outputs TS.
- the display unit 114 of the data processing device 10 may turn on a character or the like indicating the recording processing being performed, and notify the user of the type of the recording processing being performed.
- FIG. 5 (a) shows an example of characters that can be displayed on the display unit 114.
- FIG. The display unit 114 can display three types of characters. That is, "Stre am” display 40 1, "S e 1 f “Display 402” and “DC” display 403.
- FIG. 5B shows that the recording process is performed by the stream recording processing unit 105.
- the channel of the BS digital broadcast is set, and only the “Street” display 401 is lit when recording a signal on the ultra-high density medium.
- FIG. 5C shows that the recording process is performed by the self-recording recording processing unit 107.
- only the “Se1f” display 402 lights up when the terrestrial analog broadcast channel is set. It does not depend on the type of recording media.
- FIG. 5D shows that the recording process is performed by the re-encoding recording processing unit 106.
- the channel of the BS digital broadcast is set, and “DC” 403 lights up when recording a signal on the DVD-RAM media.
- the remaining amount calculation unit 115 next calculates the remaining capacity or the remaining time recordable on the recording medium 112.
- the remaining capacity or remaining time is referred to as “remaining amount”
- the calculation for obtaining the remaining amount is referred to as “remaining amount calculation”.
- FIG. 6 shows the procedure of the remaining amount calculation process.
- the system controller 108 selects one of the remaining amount calculation processes (1), (2), and (3) according to the type of the recording process, and the remaining amount calculation unit 115 selects the remaining amount calculation process. Is calculated according to the following.
- the type of the recording process is first determined in step 61.
- the types of recording processing are stream recording, PS self-encoding recording, and PS re-encoding recording. The specific contents of this processing will be described later with reference to FIG.
- the system controller 108 determines which recording process is to be performed. When the stream recording process is performed, the process proceeds to step 603, and the remaining amount calculation process (1) is executed.
- the process proceeds to 604, and the remaining amount calculation process (2) is executed.
- the process proceeds to step 605, and the remaining amount calculation process (3) is executed.
- the remaining amount calculation processes (1) and (2) realize the calculation and management of the remaining amount based on the remaining capacity of the recording media 112.
- the remaining amount calculation processing (3) realizes the calculation and management of the remaining amount based on the recording time of the night.
- the remaining capacity management based on capacity is referred to as “capacity-based remaining capacity management”
- the remaining capacity management based on time is referred to as “time-based remaining capacity management”. The specific processing of each processing (1) to (3) will be described later in detail.
- the reason for selecting the remaining amount calculation process (3) by time-based remaining amount management is that the encoding process is performed on the data processing device 10 side. Therefore, the encoding rate can be adjusted, and the recording of the time corresponding to the erased data can be guaranteed after the data is erased.
- capacity-based remaining amount management is performed. U. In both cases, recording is performed in TS format. However, since stream recording and TS self-encode recording are mixed, the capacity-based remaining amount is managed and the capacity is effectively used during stream recording.
- step 701 the system controller 108 obtains information on the channel set by the user.
- step 702 the signal selector 103 determines the type of the input signal. If the input signal is a digital stream signal, proceed to step 703, and if the input signal is an analog television signal, proceed to step 707.
- step 703 the system controller 108 obtains the type of the loaded recording medium 112, which is determined by the media determination unit 111, and determines the type in step 704. You. In the case of DVD_RAM media, proceed to step 706, and in the case of ultra-high-density RAM media, proceed to step 705. In step 705, it is determined that the stream recording process is to be performed. Thereafter, when the system controller 108 issues an instruction to the processing selector 104 to select the stream recording processing section 105, the inputted digital stream is selected. The stream signal is stream-recorded on an ultra-high density medium. On the other hand, in step 706, it is determined that the re-encoding recording process is to be performed. When the system controller 108 instructs the processing selector 104 to select the re-encoding recording processing unit 106, the input digital stream signal is decoded, re-encoded into the PS, and DVD- RAM media recorded.
- steps 707 and 708 the same processing as that in steps 703 and 704 described above is performed, and the type of the loaded recording medium 112 is determined.
- D V D—R A M media go to step 7 10; for ultra high density R A M media, go to step 7 09.
- step 709 it is determined that the self-encoding recording process to the TS is to be performed.
- the system controller 108 issues a command to the processing selector 104 to select the Serfen code recording processing unit 107
- the input analog terephthalate signal is coded and converted into TS. Recorded on ultra-high density media.
- step 710 it is determined to perform the self-recording process on the PS.
- the system controller 108 instructs the processing selector 104 to select the self-encoding recording processing unit 107, the input analog television signal is encoded and converted to PS, DVD—Recorded on RAM media.
- the user simply sets the channel, automatically selects the recording processing without being conscious of the type of the input signal and the type of the recording medium, and performs the optimum recording processing.
- the remaining amount calculation process (1) performed in step 603 of FIG. 6 will be described.
- three examples that can be applied as the remaining amount calculation process (1) will be described.
- the remaining amount calculation processing is described as (la), (lb) and (lc), respectively.
- the data rate detector 120 detects the data rate R s of the digital stream signal 101, and the remaining amount calculation unit 115 calculates the data rate R s
- the remaining time TR1 is calculated from the remaining capacity CR and the following equation.
- the remaining capacity calculation unit 115 acquires the program information of the program to be transmitted subsequently, together with the program information currently being transmitted, and calculates the remaining capacity.
- Fig. 8 shows the calculation procedure of the remaining amount calculation process (Ib).
- the remaining capacity calculation unit 115 acquires the remaining capacity CR detected by the remaining capacity detection unit 113.
- the remaining amount calculation unit 115 acquires the current time Tcur.
- the current time Tcur can be obtained from a clock provided in the recording device or from a time information packet (TOT) in TS.
- the remaining amount calculator 115 acquires the data rate Rcur of the program currently being received.
- the data rate R cur is obtained from the information stored in the program information table 420.
- Figure 9 is stored in the program information table 420 An example of the program information is shown.
- the start time and data rate of program a, program b, program c, and program d are stored, and the start times are T (a), T (b), T (c), and T (d), respectively.
- the data rates are R (a), R (b), R (c), and R (d).
- Program a is the program currently being received.
- Programs b to d represent programs to be transmitted subsequently.
- the data rate is specified by whether the program signal is a standard definition (SD) signal or a high definition (HD) signal.
- SD standard definition
- HD high definition
- the system controller 108 finds that the program a is transmitted by the SD signal, the system controller 108 generates the program information in which R (a) is set to 12 Mbps, and transmits the program information by the HD signal. Then, program information with R (a) set to 24 Mbps is generated.
- FIG. 8 is referred to again.
- the reference remaining time TR is calculated using the data rate Rcur and the remaining capacity CR as in the following equation.
- the reference remaining time TR and the reference final scheduled time T end are the remaining time and the scheduled time when the remaining amount becomes zero, respectively, assuming that the input is continued with the data rate R cur.
- the remaining amount calculation unit 115 acquires the start time T next of the next program and the data rate R ne X t based on the program information table memory 420.
- the remaining amount calculation unit 1 15 compares the final scheduled time T end with the start time T next of the next program, and Determine if it is larger. This is a determination of whether the next banner can be recorded.
- step 807 the remaining time is corrected.
- the remaining amount calculation unit 115 obtains a time dT from the time T next at which the next program starts to the last scheduled time T end by the following equation.
- the amount of overnight data d C represents the capacity allocated for recording the next program. Then, the remaining amount calculation unit 1 15 obtains the time dTR that can record the next program having the data rate RneXt with respect to the data amount dC by the following equation.
- the remaining amount calculation unit 115 calculates the final scheduled time T End again.
- the next program starts at time Tnext, and the next program can be recorded for time dTR, so that the final scheduled time Tend is obtained by the following equation.
- step 808 the remaining amount calculation unit 115 advances the index of the program by one, and returns to step 805. In other words, one more The processing up to steps 805 and 806 is repeated for the program.
- step 809 the remaining amount calculation unit 115 obtains the remaining time TR using the updated time Tend.
- the remaining time TR can be obtained by the above-described procedure.
- FIG. 10 shows the relationship between the recording time of a program and the amount of data to be recorded.
- the horizontal axis represents time
- the vertical axis represents data volume
- the origin represents the current time Tcur and the currently used capacity Ccur.
- the total capacity of the recording medium is denoted by C T
- program a is currently being broadcast, followed by program b, program c, and program d.
- the program information of each program is described in a program information table memory 420 shown in FIG.
- the temporal change of the data amount when the currently input program a is recorded is represented by a straight line with the data rate R (a) as the slope.
- the time when this straight line reaches the total capacity C T is the end time T End (a).
- program b starts at T (b), which is the time before T end (a). Therefore, the transition of the data amount increases with a slope R (a) until time T (b), but increases with a slope R (b) from time T (b).
- C (a) is the amount of data assumed when program a is recorded
- d C (b) is the start time T of program b. This is the remaining capacity planned for (b).
- the expected end time is obtained in the same manner as program a. That is, assuming that the data amount changes in a straight line with a slope R (b) from the program b start time T (b), the expected end time T End (b) when the total capacity CT is reached is obtained.
- the program c is started before the scheduled end time T end (b). At this time, in step 806 of FIG. 8, the expected end time T en d (b) ⁇ T n ext t. In program c, the amount of data is time T
- the remaining time TR obtained as described above is defined as the remaining time TR1 by the remaining amount calculation processing (lb).
- the remaining time is obtained using the data rate and the program start time of the program to be input earlier in addition to the program information (data rate and program start time) of the currently input program. So it can be calculated accurately. By displaying the calculated time on the display unit 114, user convenience is improved.
- the remaining time may be calculated by acquiring the data amount of each program. This is because the broadcast time of a program is calculated from the difference between the start time and the end time, and the amount of data The data rate can be calculated by dividing by the set time.
- the remaining capacity calculation unit 115 calculates the remaining capacity while sequentially adding the data amount of the input program to determine whether the total capacity is reached.
- FIG. 11 shows the calculation procedure of the remaining amount calculation process (lc).
- the remaining capacity calculating unit 115 acquires the remaining capacity CR detected by the remaining capacity detecting unit 113.
- the remaining amount calculation section 115 acquires the data R from the program information table 420.
- the program time P is obtained.
- the program time P can be calculated from the program start time and the program end time. However, when the program time is transmitted as program information, it can also be detected by reading the transmitted information. Each program time may be stored in the program information template 420.
- the program data amount Cp is calculated from the program time P and the data rate R.
- step 1106 the remaining amount calculation unit 115 updates the accumulated data amount C by the following equation.
- step 1107 the remaining amount calculation unit 115 updates the remaining time TR according to the following equation.
- step 1108 the remaining amount calculation unit 115 compares the remaining capacity CR with the accumulated data amount C to determine which is larger. This is to determine whether the next program can be recorded.
- the remaining amount calculation unit 1 15 determines that it is possible to record the next program, and proceeds to step 1 109, otherwise. If so, go to step 1 110.
- step 1109 the program index is advanced by one, and the process returns to step 1103. In other words, the processes from step 1103 to 1108 are repeated again for the program that is further ahead.
- step 1 110 the remaining amount calculation unit 1 15 corrects the remaining time TR and determines the remaining time TR.
- the remaining time can be accurately calculated in exactly the same way as the remaining amount calculation processing (lb), and the calculated time is displayed on the display unit 114, thereby improving user convenience. Is improved.
- the remaining time may be calculated by acquiring the data amount of each program as the program information.
- the program time P (a) of the program a is obtained as follows from the current time T cur to the end time of the program a. Note that the end time of program a is equal to the start time T (b) of program b.
- the data amount C (a) when program a is recorded is calculated using the data rate R (a)
- the remaining amount calculation unit 1 15 corrects the remaining time TR for the amount exceeding the remaining capacity CR, and determines the remaining time.
- the system controller 108 may obtain both the program start time and the program end time from the program information.
- the remaining time TR obtained as described above is defined as the remaining time TR 1 according to the remaining amount calculation method (1).
- the remaining amount calculation unit 1 15 obtains the remaining time TR1 using the updated time Tend.
- the remaining amount calculation method (1) has been described using three examples (la) to (1c). It is assumed that the remaining amount calculation unit 115 of the data processing device 10 has a function of calculating the remaining time by, for example, the remaining amount calculation method (lb).
- the remaining amount calculation process (2) performed in step 604 of FIG. 6 will be described.
- two types of examples applicable to the remaining amount calculation process (2) will be described.
- the remaining amount calculation processes (2a) and (2b) are described, respectively.
- the remaining amount calculation unit 115 includes the encoding rate Re used for the re-encoding recording process 106 and the encoding process of the SELFEN code recording process and the remaining amount. Using the capacity CR, calculate the remaining time TR2 as in the following equation.
- the encoding rate Re is determined from the recording time mode. For example, in the long time recording mode (LP mode), the coding rate Re is 2.5 Mbps, and in the standard time recording mode (SP mode), it is 5 Mbps. Remaining amount calculation processing (2b):
- the encoding process is a calculation process that can be used when performing variable bit rate (VBR) encoding.
- VBR coding raises and lowers the coding rate, taking into account the complexity of the input signal, etc., around the target average coding rate, and achieves high image quality and high sound quality. Therefore, the actual coding rate does not always match the average coding rate set as the target. Therefore, the VBR margin M is defined, and the coding rate is varied within the range of the VBR margin M. That is, the rate is controlled so that the error data amount D generated due to the difference between the average coding rate Rea and the actually generated data rate Rg does not exceed the VBR margin M. As a result, the data amount G generated at the recording time Tr does not exceed the maximum data amount Gmax obtained by the following equation.
- the remaining amount calculation unit 1 15 replaces the average coding rate Rea with the coding rate Re, and obtains the remaining time TR2 as follows.
- the quantization parameter in the encoding process may be controlled. Increasing the quantization parameter reduces the amount of data, and decreasing it increases the amount of data. Therefore, for example, the following feedback control may be performed.
- Q st is a predetermined initial quantization parameter
- F is a positive significant number of 1 or less, which is a predetermined value determined by the strength of feedback.
- the remaining amount calculation method (2) has been described using two examples (2a) and (2b). It is assumed that the remaining amount calculation unit 1 15 of the data processing device 10 has a function of calculating the remaining time by, for example, the remaining amount calculation method (2b).
- the remaining amount calculation processing (3) performed in step 605 of FIG. 6 will be described.
- two examples that can be applied as the remaining amount calculation process (3) will be described.
- the remaining amount calculation processes (3a) and (3b) are described, respectively.
- the remaining amount calculation unit 115 calculates the remaining time TR3 based on the recording time Tr, the recording rate Rr, and the encoding rate Re of each recording data.
- the recording time of the i-th recording data is represented by Tr (i)
- the recording rate is represented by Rr (i)
- the remaining amount calculation unit 115 defines R rs as a reference recording rate, and normalizes each recording time to calculate a reference recording time T rs (i).
- T rs The sum of the reference recording times T rs (i) is defined as T rs.
- T rs S um [T rs (i)] (Sum []: Represents addition for all recording data)
- the recordable time (reference total recording time) T as determined by the total capacity of the recording medium is introduced.
- the reference recording rate Rs may be set to 5 Mbps and the reference total recording time Tas may be set to 2 hours.
- the reference recording time indicates the maximum time during which program data can be recorded on an unused recording medium 112 by a predetermined recording rate.
- the remaining amount calculation unit 115 calculates the reference remaining time TRs as follows.
- the remaining amount calculation unit 115 calculates the remaining time TR3 as in the following equation, based on the coding rate Re determined in the recording time mode.
- TR 3 TR s XR r s / R e
- T as 2 hours
- T r (1) 1 hour
- T r (2) 1 hour
- R rs 5 Mb ps
- R r (1) 2.5 Mb ps
- R r (2) 5 Mbps
- R e 2.5 Mb ps
- the recording time T r and the recording rate R r of each recording data are detected by the recording data detecting unit 119.
- the encoding rate Re is determined by the recording time mode.
- the remaining capacity calculation unit 115 calculates the remaining time TR3c obtained from the remaining capacity and the remaining time obtained by the same procedure as the remaining capacity calculation method (3a) described above. May be used as TR 3 t, and the smaller one may be used as the remaining time TR 3.
- the remaining amount calculation unit 115 sets the remaining time TR3c obtained from the remaining capacity as the remaining time.
- the remaining time TR3c may be obtained as follows.
- the actual data rate It may be lower than the target coding rate. Then, after recording the remaining time calculated before recording, there may be a case where there is excess capacity. However, if recording is continued until the remaining capacity is exhausted, the erasure time cannot be guaranteed.
- the erasure time recording guarantee means that recording for the same time as the erased recording data is guaranteed. For example, suppose that recording was performed under the condition that the remaining time was 1 hour in a certain recording time mode, but recording was continued for 1 hour and 30 minutes if recording was continued until there was no remaining capacity due to the low actual generation rate. However, if the recorded data is deleted later and recorded in the same recording time mode, recording of only one hour's worth of the program is guaranteed.
- VBR coding may increase the actual generation rate.
- the recording of the remaining time is guaranteed because the variable bit rate control is performed with the VBR margin M described above.
- the rate may be controlled so that the remaining capacity when the remaining time becomes zero approaches zero, so that waste of capacity is minimized. That is, the system controller 108 of the data processing device 10 performs feedback control of the quantization parameter of the encoding process using the difference between the actual generation rate and the target encoding rate.
- the actual generation rate may be controlled by using
- the time-based remaining amount management specifying the total recording time shown in (3a) and (3b) realizes the recording guarantee of the erasure time. As a result, it is possible to provide the remaining time management that is easy for the user to understand.
- recording guarantee of the erase time meaningful to the user means guaranteeing the recording of the standard television signal for the time of the erased standard television signal.
- the actual data may exist up to about 4 to 8 Mbps.
- the data rate is controlled by the sending side, and in order to guarantee the recording of the erasure time in situations where the data rate varies, the same recording time is used for both 4 Mbps and 8 Mbps TV signals.
- the data amount required to record a 4 Mbps television signal is half the data amount of an 8 Mbps television signal, and the recording capacity is wasted. Therefore, realizing the recording guarantee of the erasing time would adversely affect the user. Therefore, when performing stream recording, it is better to perform capacity-based time management.
- FIG. 12 shows a data structure of the program data recorded on the recording medium 112 by the recording processing by the recording processing unit 121 described above.
- management information 1001, clip (# 1) 1002, clip (# 2) 1003, and the like are recorded.
- “Clip” indicates a recording unit.
- Each clip represents one recorded program, and is a coded stream of video and audio signals of each program. You. Therefore, at least two programs are recorded on the recording media 7 1 12 in FIG.
- the management information 1001 is management information for reproducing and recording a clip recorded on the recording medium 112.
- the management information 1001 is composed of basic management information 1004, and management information 1005 and 1006, which are management information of clips # 1 and 2, respectively.
- basic management information 1004 basic information such as the number of clips recorded on the recording medium 7112 is recorded.
- Clip # 1 information 1005 is composed of clip basic information 1007, recording type identification information 10008, and encoding mode information 10009.
- Basic information such as the recording start address and recording time of the clip is recorded as the clip basic information.
- the recording type identification information 1008 is information on a so-called recording mode, and is information for identifying whether a clip is a stream subjected to stream recording processing.
- the encoding mode information 1009 is information on the encoding parameters of the encoding process in the stream that has been encoded and recorded.
- the encoding parameter is information for identifying a bit rate, a video resolution, and a recording time mode in the encoding process.
- the recording type identification information 1008 it is possible to identify whether or not the data stream of the recorded program has been stream-recorded. Also, by recording the encoding mode information 109, it is possible to know the parameters of the encoding process in the re-encoding recording process or the self-encoding recording process. Can be identified.
- a signal for identifying the recording process selected by the system controller 108 may be recorded on the recording medium 112.
- the recording position is, for example, an area for recording management information on the recording medium 112.
- the data recorded on the recording medium 112 is directly recorded from the digital stream signal transmitted by the BS digital broadcasting, or is encoded by the encoding processing unit of the recording device. It is possible to further identify whether or not the encoded stream is obtained.
- FIG. 13 shows a configuration of a data processing device 20 having a reproducing function.
- the data processor 20 reads data from the recording media 112 and reproduces video signals and audio signals.
- a device having a recording function for example, an optical disk drive
- the data processing device 20 can be regarded as a configuration relating to the reproduction function of the data processing device 10 shown in FIG.
- the data processing device 20 includes a playback head 1101, a playback unit 1302, a recording type identification unit 1303, an encoding mode identification unit 1304, and a management information acquisition unit 13 05 and a recording mode display section 1306.
- the video / audio reproduction unit 1302 reproduces a video signal and an audio signal by decoding recorded data. If the recorded data is TS, first the video stream and the audio stream After separation, the video stream and audio stream are decoded.
- the decoding process may be a decoding process corresponding to the encoding method, and may be a decoding process according to the MPEG 2 video standard and the MPEG 1 audio layer 2 standard.
- the management information acquisition unit 13 05 reads and acquires the management information recorded in the management area of the recording medium, and the recording type identification information and the encoding mode information of the recording data (reproduction data) to be reproduced from the management information. Is read.
- the recording type identification unit 1303 identifies, based on the read recording type identification information, whether or not the reproduction data is data subjected to stream recording processing.
- the encoding mode identification unit 1344 identifies the recording time mode based on the read encoding mode information.
- the display unit 1306 displays the type of the recording process. Specifically, the display unit 1306 displays whether or not the playback data is data recorded in a stream 1, that is, the data recorded by the reaming, and the recording time mode.
- the display unit 1 1 4 of the data processor 10 As an example of the display unit 13 06, the display unit 1 1 4 of the data processor 10
- the display unit 114 operates to display the recording mode during recording, and the recording mode of the reproduced data during reproduction. Is displayed. Also, as will be described later with reference to FIG. 16, for example, if the reproduced data is data subjected to stream recording processing, the Stream 501 of the display unit 114 is lit and displayed again in the LP mode. If the data has been subjected to the encoding process or the self-encoding process, LP502 is lit. Ma Alternatively, as described with reference to FIGS. 32 and 33, the corresponding recording mode display is turned on. “LP”, “SP”, etc. in FIG. 16, FIG. 32, 33, etc. indicate the recording mode determined by the user's selection.
- the remaining amount calculation process to be executed is determined based only on the recording process type. However, it is also possible to determine the remaining amount calculation process to be executed based on the type of the recording medium 112 and the type of the recording process, or based on the type of the recording medium 112 and the type of the input signal. .
- FIG. 14 shows the procedure of the remaining amount calculation process based on the type of the recording media 112 and the type of the recording process.
- the media discriminating unit 111 discriminates whether the recording media 112 is a super high density RAM media or a DVD_RAM media. If the recording medium 112 is an ultra-high-density RAM medium, the system controller 108 proceeds to step 1402. On the other hand, in the case of DVD-RAM media, the process proceeds to step 1406, and the remaining amount calculation process (3) is executed.
- the type of the recording process is determined. Recording office The types of processing are stream recording, TS self-encoding recording, and TS re-encoding recording.
- the system controller '108 determines which recording process is to be performed. When performing the stream recording process, the process proceeds to step 1444, and the remaining amount calculation process (1) is performed. When performing TS self-encoding recording processing or TS re-encoding recording, proceed to 1405, and calculate remaining amount
- FIG. 15 shows a procedure of a remaining amount calculation process based on the type of the recording medium 112 and the type of the input signal.
- the media discriminating unit 1111 discriminates whether the recording medium 71 12 is an ultra-high density RAM medium or a DVD-RAM medium.
- the system controller 108 proceeds to step 1502 when the recording medium 71 12 is an ultra-high-density RAM medium.
- the process proceeds to step 1506, and the remaining amount calculation process (3) is executed.
- the system controller 108 acquires the channel set via the channel setting unit 109.
- the system controller 108 determines the input type of the set channel. In the case of a digital stream signal, the flow proceeds to step 1504, and the remaining amount calculation processing (1) is executed. If the signal is an analog TV signal, go to 1505 to calculate the remaining amount
- the PS when recording program data on a DVD-RAM media, the PS self Record an Encode or PS Reencode.
- the PS When recording program data on ultra-high-density RAM media, perform TS recording while managing the capacity-based remaining amount. For the same reason as described with reference to FIG. 6, the remaining amount management and the remaining amount calculation process are associated.
- the digital stream signal When a digital stream signal is input and recorded on an ultra-high-density RAM media, the digital stream signal is decoded, encoded again with a predetermined encoding parameter, and recorded. Is also good. In this case, it becomes TS re-encoding recording processing and the remaining amount calculation processing (2) may be selected.
- the data processing device 10 may further include a user interface for setting a recording time mode.
- the recording time mode is reflected on the encoding parameters in the re-encoding recording processing section 106 and the self-encoding recording processing 107.
- a standard time recording (SP) mode or a long time recording (LP) mode may be set.
- SP mode a standard time recording
- LP mode a long time recording
- the system controller 108 inputs and controls the encoding parameters to the video encoders 201 and 305.
- the encoding parameters may be set for the audio encoders 202 and 307 in the same manner according to the recording time mode.
- the recording time mode (coding parameter) may be set independently for the re-encode recording processing unit 106 and the SELFEN code recording processing unit 107. This enables fine control by the user. Further, the recording time mode (encoding parameter overnight) of only one of the re-encoding recording processing unit 106 and the self-encoding recording processing unit 107 may be set.
- information on the encoding parameters used in the re-encoding recording processing unit 106 and the SELFEN code recording processing unit 107 may be recorded in a predetermined area of the recording medium 112. .
- the recording position is, for example, an area for recording management information on the recording medium 112.
- the information relating to the encoding parameters may be a bit rate expressed as an encoding compression rate, or may be information for identifying a recording time mode such as LP or SP.
- the two recording time modes are the LP mode and the SP mode, but the present invention is not limited to this. There is no limit to the number of modes such as higher quality modes or longer time modes.
- FIGS. 16A to 16D show a display unit 114 having a recording mode display function.
- the display unit 114 has three recording mode display tubes, and turns on and displays the Stream 501, LP 502, and SP 503, respectively.
- Fig. 16 (a) shows the full lighting state.
- FIG. 16 (b) shows the lighting state of “Stream”. This is the state when the stream recording process is performed, that is, when the BS digital broadcast channel is selected and the program data is recorded on the ultra-high density medium.
- Fig. 16 (c) shows the lighting state of "LP". This is a state when the self-encoding recording process or the re-encoding recording process is performed and when the recording time mode is the LP mode. In other words, this is the state when the terrestrial analog broadcast channel or the BS digital broadcast channel is selected, and the program data is recorded on the DVD_RAM media.
- Fig. 16 (d) shows the lighting state of "SP". This is a state when the self-encoding recording processing unit 107 or the re-encoding recording processing unit 106 performs recording processing, and the recording time mode is set to the SP mode. In other words, this is the state when the terrestrial analog broadcast channel or the BS digital broadcast channel is selected and the program data is recorded on the DVD-RAM media.
- the display unit 114 displays whether or not to perform stream recording and the recording time mode for performing the encoding process, thereby allowing the user It is possible to more easily recognize whether or not is a stream recording and a recording mode.
- the display unit 114 is not limited to the above example, and may display information for identifying at least one recording process.
- the data processing device 10 of the first embodiment determines the recording process according to the input signal, the type of the loaded recording media 112, and the like, and records.
- the data processing device of the present embodiment has a configuration in which a recording process is performed according to a recording mode set by a user himself, in addition to the configuration of the data processing device 10 of the first embodiment.
- “Recording mode” here refers to the type of recording processing. Specifically, they are an auto mode recording process and a manual mode recording process.
- the auto mode recording process is the same as the process of the data processing device of the first embodiment.
- the manual mode recording process is set when, for example, the user wants to record with emphasis on one of recording time, video quality, and the like.
- the configuration of the data processing apparatus of the present embodiment is the same as the configuration of the data processing apparatus 10 shown in FIG.
- the configuration and operation different from 10 will be described.
- FIG. 17 is a flowchart showing a mode determination procedure of the data processing device 10 according to the present embodiment.
- the data processing apparatus 10 according to the present embodiment has two types of recording processing (auto mode recording processing and manual mode recording processing). Switching between the auto mode and the manual mode is performed by the user in the recording mode setting section 123, for example.
- the recording mode setting section 123 can set the manual mode, and can set which of the recording time, the video quality, and the like is to be emphasized.
- both the auto mode and the manual mode multiple types of recording are performed when the analog TV signal and digital stream signal are input and recorded on DVD-RAM media and ultra-high-density RAM media. The method is selected.
- step 1701 the system controller 108 acquires the selected recording mode.
- step 1702 the system controller 108 determines the recording mode. That is, when the recording mode has not been set via the recording mode setting section 123, it is determined that the mode is the auto mode, and the process proceeds to step 1704. Go to 03. In step 1 ⁇ 03, manual mode recording processing is performed, and in step 1704, auto mode recording processing is performed.
- the recording processing unit 121 performs a recording process according to either the auto mode or the manual mode. In the following, for each mode, A signal recording process when a video stream signal and an analog television signal are input will be described. The relationship between the selection process and the recording process related to the following description is as described in the control table 419 of the table memory 122.
- FIG. 18 shows an example of the control table 4 19.
- the system controller 108 may instruct each component according to the control table 419, or may output an instruction for realizing the processing described below without providing such a table. Good.
- the auto mode in FIG. 18 is the same as that shown in FIG. 4, and the specific processing procedure is as shown in FIG. Therefore, description of the auto mode is omitted.
- the remaining amount calculation processes (1) to (3) corresponding to the determined recording process are uniquely determined, and the remaining time and the like can be displayed. For example, as shown in Fig.
- the stream recording process corresponds to the remaining amount calculation process (1)
- the remaining amount calculation process (2) corresponds to the recording process
- the remaining amount calculation process (3) corresponds to the PS re-encoding recording process and the PS self-encoding process.
- Fig. 19 shows the deciding method of the recording process in the manual mode recording process. Indicates the order.
- the system controller 108 acquires input channel information selected by the user.
- the system controller 108 determines the type of the input signal. If the input signal is an analog television signal, the process proceeds to step 1907, and if the input signal is a digital stream signal, the process proceeds to step 1903.
- the system controller 108 obtains the type of the recording medium that is currently performing the recording process.
- the system controller 108 determines the type of recording media. For DVD—RAM media, go to step 1906. For ultra-high density RAM media, go to step 1905.
- step 1905 the input digital signal is re-encoded into the TS and recorded on the ultra-high density media.
- the system controller 108 re-encodes the input digital signal to the PS and records it on the DVD-RAM medium.
- step 907 the system controller 108 obtains the type of the recording medium that is currently performing the recording process.
- step 1908 the type of the recording medium is determined.
- DVD If it is a RAM medium, go to step 1910; if it is a very high-density RAM medium, go to step 1909.
- step 1909 the input analog signal is self-encoded in TS and recorded on an ultra-high density medium.
- the system controller 108 self-encodes the input analog signal into the PS and records it on the DVD-RAM media.
- a plurality of modes relating to the recording time such as the long-time recording mode or the standard time recording mode can be provided. Is also good.
- the user selects only the channel to be recorded, and the recording process suitable for the input signal and recording medium is performed.
- the auto mode performs stream recording processing for directly recording the input digital stream signal
- the transmitting side controls the data amount of the input stream. Therefore, when recording on a recording medium with a small free space, there is a possibility that all programs to be recorded cannot be recorded.
- the manual mode it is possible to record in the recording time mode according to the user's intention.
- the manual mode since the encoding process is always performed, the data amount of the encoded stream to be recorded can be controlled. Therefore, when the free space is small, by recording in the long-time recording mode, the recording time can be extended, so that the recording according to the free space can be performed.
- Fig. 20 (a) to (c) show examples of display patterns on the display unit 114 having a recording mode display function.
- the display section 114 has two recording mode display tubes, and "Au to" and "Stream" are respectively lit and displayed.
- FIG. 20 (a) shows the lighting state of "Auto” and "Stream”. This is the state when the auto mode is selected and the stream recording process is performed. In other words, this is a state where a digital stream signal is input and program data is recorded on an ultra-high density medium.
- FIG. 20 (b) shows a lighting state of only "Auto”. This is the state when the auto mode is selected and the re-encoding or self-encoding is performed. In other words, this is the state when the digital stream signal is input and the program data is recorded on the DVD-RAM media, or when the analog TV signal is input.
- FIG. 20 (c) shows a state where the display tube of the display section 114 is not lit. This is the state when manual mode is selected. With this configuration, the user can recognize the selected recording mode and recording process.
- the “manual mode” four recording time modes, ie, an LP mode, an SP mode, an XP mode, and a B-XP mode are set by the user. If the B-XP mode is set while the DVD-RAM media is loaded, recording will be performed in the XP mode.
- FIG. 21 (a) shows an example of the display tube of the display unit 114.
- the display portion 114 is largely divided into four display tube portions of "Auto", “B-XP", "SP", and "LP".
- FIGS. 21 (b) to (g) show possible display states.
- Fig. 21 (b) shows the display state when the auto mode is set.
- Fig. 21 (c) shows the display state when the auto mode is set and the cell phen code recording process is in progress.
- Fig. 21 (d) shows the state when the BX P mode is set.
- Fig. 21 (e) shows the state when the XP mode is set.
- FIG. 21 (f) shows the state when the SP mode is set.
- FIG. 21 (g) shows a state when the LP mode is set.
- each display is shown to facilitate understanding. Will be described with reference to a control table 4 19.
- Each control table 4 19 shows the correspondence between the type of the loaded recording medium 112, the type of the input signal (input source), the type of the remaining amount calculation to be employed, and the recording rate used for the remaining amount calculation. I have.
- FIG. 22 shows the control table 4 19 when the auto mode is set.
- the display section 114 is displayed as shown in FIG. 21 (b).
- the input digital stream signal is an HD signal, it is assumed to be an HD broadcast, and the recording rate is set to 24 Mbps, and the remaining amount calculation process is performed.
- the input digital stream signal is an SD signal, it is assumed that the broadcast is an SD broadcast, and the recording rate is set to 12 Mbps, and the remaining amount calculation process is performed. If it is not possible to detect whether the input digital stream signal is an HD signal or an SD signal, the remaining rate is calculated at a recording rate of 24 Mbps.
- the recording medium is a DVD and the input source is an analog signal
- self-encoding recording is performed.
- the display section 114 is displayed as shown in FIG. 21 (c).
- FIG. 23 shows a control table 4 19 when the BXP mode is set. During recording processing based on this mode, the display unit 114 is displayed as shown in FIG. 21 (d). If the recording medium 112 is BD, the program will be recorded in "BXP" mode with a recording rate of 15 Mbps.
- the recording medium 112 is a DVD
- the program will be recorded in 10 Mb ps XP mode.
- the DVD standard limits the maximum recording rate to 10 Mbps. Note that D When a VD is loaded, “?” Is displayed on the display section 114 (Fig. 21 (e)).
- FIG. 24 shows the control table 419 when the XP mode is set. During recording processing based on this mode, the display section 114 is displayed as shown in FIG. 21 (e).
- FIG. 25 shows the control table 419 when the SP mode is set. During recording processing based on this mode, the display section 114 is displayed as shown in FIG. 21 (f).
- FIG. 26 shows the control table 419 when the LP mode is set. During recording processing based on this mode, the display section 114 is displayed as shown in FIG. 21 (g).
- FIGS. 27 to 31 show the relationship between each mode and the display pattern of the display unit 11.
- FIG. 27 shows the display pattern of the display unit 114 according to the type of the recording medium 112 when the auto mode is set. The type of the input source.
- FIG. 28 shows a display pattern of the display unit 114 according to the type of the recording medium 112 and the type of the input source when the BXP mode is set.
- FIG. 29 shows a display pattern of the display unit 114 according to the type of the recording medium 112 and the type of the input source when the XP mode is set.
- FIG. 30 shows a display pattern of the display unit 114 according to the type of the recording medium 112 and the type of the input source when the SP mode is set.
- FIG. 27 shows the display pattern of the display unit 114 according to the type of the recording medium 112 when the auto mode is set.
- FIG. 28 shows a display pattern of the display unit 114 according to the type of the recording medium 112 and the type of
- FIG. 31 shows a display pattern of the display unit 114 according to the type of the recording medium 112 and the type of the input source when the LP mode is set.
- the display pattern of “Playback” in FIGS. 27 to 31 is recorded under the corresponding conditions. Means the display when the reproduced data is reproduced.
- “auto mode” is almost the same as the definition of “auto mode” above, except for the following points. That is, the recording time mode at the time of the self-encoding recording / re-encoding recording is the SP mode or the LP mode, which is set by the user. On the other hand, in the “manual mode”, the recording time mode is the SP mode or the LP mode, which is set by the user. Note that the user can independently set the SP mode or the LP mode for each of the "auto mode” and the "manual mode”.
- FIG. 32A shows an example of characters that can be displayed on the display unit 114.
- FIG. The display section 114 displays only "Auto", "LP” and "SP".
- FIG. 32 (b) shows a lighting state of only "Auto”. This indicates that the recording processing is performed by the stream recording processing unit 105.
- the channel of the BS digital broadcast is set, and only “Auto” lights up when recording a signal on ultra-high-density media.
- FIG. 32 (c) shows the lighting state of "Au to" and "LP". This indicates that the self-encoding recording process or the re-encode recording process is performed in the LP mode.
- FIG. 32 (d) shows the lighting state of "Aut 0" and "SP". This indicates that the auto mode is selected, and the self-encoding or re-encoding recording is performed in the SP mode.
- Fig. 32 (e) shows the lighting state of "L P". This indicates that the manual mode is selected and the self-encoding or re-encoding is performed in the LP mode.
- FIG. 32 (f) shows the lighting state of "SP". This indicates that the manual mode is selected, and that the self-encoding or re-encoding recording is performed in the SP mode.
- the user can recognize the selected recording mode, the recording process, and the recording time mode.
- a stream recording process may be further displayed as a modified example of the display pattern shown in FIG. FIG. 33 (a) shows an example of characters that can be displayed on the display unit 114.
- FIG. 33 (b) shows the lighting state of “Auto” and “Stream” 902. This indicates that the auto mode is selected and the stream recording process is performed.
- FIG. 33 (c) shows the lighting state of "Auto” and "LP”. This indicates that the auto mode is selected, and the self-encoding or re-encoding recording is performed in the LP mode.
- FIG. 33 (d) shows the lighting states of "Auto” and "SP". This indicates that the auto mode is selected, and the self-recording process or the re-recording process is performed in the SP mode.
- FIG. 33 (e) shows the lighting state of "LP". This indicates that the manual mode is selected and the self-encoding or re-encoding is performed in the LP mode.
- FIG. 33 (f) shows the lighting state of "SP". This indicates that the manual mode is selected, and the self-encoding or re-encoding is performed in the SP mode.
- the user can recognize the selected recording mode, the recording process, and the recording time mode.
- the recording mode setting section 123 sets manual Z auto and selects a recording mode.
- a recording mode button may be provided so that each time the recording mode button is pressed, the setting can be made in a cyclic manner from auto to LP to SP—auto.
- Auto mode is set.
- LP or SP If you select, manual mode is selected, and LP or SP mode is selected as the recording time mode.
- the auto recording time mode setting user interface 6001 may not be provided. In this case, it is assumed that the recording time mode in the re-encoding recording process in the auto mode or the self-encoding recording process is fixed to the device in advance. This allows the auto mode to be a simpler recording mode.
- the input signal to the data processing device 10 may be a digital stream signal which may be CS digital broadcast, or may be transmitted via a digital interface such as iLink. Signal.
- the input signal may be a signal from a digital camcorder.
- DV data which is a consumer digital camcorder
- the signal is input from the DV terminal, but the DV terminal may be assigned as one channel, and the stream recording process for directly recording the DV data and the re-encoding recording process are selected according to the recording medium. For example, re-encode recording processing is performed for DVD-RAM media, and stream recording processing is performed for ultra-high-density RAM media.
- the input signal may be an uncompressed digital signal or a compressed digital signal.
- an uncompressed digital signal as described in the embodiment What is necessary is just to select a recording process like an analog signal. This is because an analog signal is subjected to digital conversion processing in the encoding process and is treated as an uncompressed digital signal. Further, the types of signals may be three or more.
- the type of recording medium is also merely an example, and other optical disk media such as DVD-R, DVD_RW, DVD + R, DVD + RW, CD-R, and CD-RW may be used. Further, a semiconductor memory, a magnetic recording medium, or the like may be used, and the type is arbitrary as long as two or more types exist.
- the type of the encoding method used in the recording process is merely an example, and other encoding methods such as MPEG4 may be used, and the number is not limited as long as there are two or more types.
- the functions of the data processing device in each of the above-described embodiments may be realized by executing software.
- the system controller 108 may control the operation of each component by executing a computer program.
- the computer program can be configured to perform processing according to the flowcharts shown in FIGS. 6 to 8, 11 and 15, for example.
- the computer program can be recorded on a recording medium such as an optical recording medium represented by an optical disk, an SD memory card, a semiconductor recording medium represented by an EEPROM, and a magnetic recording medium represented by a flexible disk.
- a recording medium such as an optical recording medium represented by an optical disk, an SD memory card, a semiconductor recording medium represented by an EEPROM, and a magnetic recording medium represented by a flexible disk.
- the data processing device 10 can be connected not only via a recording medium but also via an electric communication line such as the Internet. You can get a new program.
- a data processing device or the like that can determine a recording method based on a type of an input signal and a type of a recording medium, determine a remaining amount calculation method according to the recording method, and calculate a remaining time Is provided. Since the method of calculating the remaining amount differs depending on the recording method, the remaining time can be calculated more appropriately and accurately. As a result, the user can check the calculated remaining time via the display tube or the like, and the convenience for the user is greatly improved.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
Description
Claims
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US10/544,969 US8244107B2 (en) | 2003-02-13 | 2004-02-12 | Data processing apparatus |
EP04710542A EP1608166B1 (en) | 2003-02-13 | 2004-02-12 | Data processing device |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006196163A (ja) * | 2005-01-12 | 2006-07-27 | Thomson Licensing | 記録媒体におけるa/v信号を記録するための方法及び記録媒体から読み出し及び記録媒体に書き込みするための装置 |
JP2008243246A (ja) * | 2007-03-26 | 2008-10-09 | Funai Electric Co Ltd | 光ディスク記録装置 |
WO2010038475A1 (ja) * | 2008-10-03 | 2010-04-08 | パナソニック株式会社 | コンテンツ配信システム、端末装置、コンテンツ配信装置、付加情報配信装置、コンテンツ記録方法及び記録媒体 |
US7840621B2 (en) | 2005-05-31 | 2010-11-23 | Casio Computer Co., Ltd. | Electronic apparatus and its control program |
CN101930770A (zh) * | 2010-08-19 | 2010-12-29 | 福建星网锐捷通讯股份有限公司 | 一种视频数据快速搜索切片引擎及其搜索方法 |
CN101558448B (zh) * | 2006-12-13 | 2011-09-21 | 汤姆森许可贸易公司 | 用于获取并编辑音频数据和视频数据的系统和方法 |
JP2016122884A (ja) * | 2014-12-24 | 2016-07-07 | 株式会社東芝 | 電子機器、及び録画方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007193888A (ja) | 2006-01-19 | 2007-08-02 | Sony Corp | 記録装置および方法、プログラム、並びに符号化装置および方法 |
KR20140111789A (ko) * | 2013-03-12 | 2014-09-22 | 삼성전자주식회사 | 디지털 tv 타임 쉬프트 방법 및 이를 이용한 디지털 tv 타임 쉬프트 장치 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1168347A2 (en) | 2000-06-26 | 2002-01-02 | Matsushita Electric Industrial Co., Ltd. | Remaining recordable time calculation apparatus that converts amount of free area of recording medium into time |
EP1206134A2 (en) | 2000-11-08 | 2002-05-15 | Kabushiki Kaisha Toshiba | Recording rate automatic setting recording device and recording rate automatic setting recording method |
JP2002222586A (ja) | 2001-01-26 | 2002-08-09 | Sony Corp | 記録装置 |
JP2002313067A (ja) | 2001-04-13 | 2002-10-25 | Matsushita Electric Ind Co Ltd | 音楽記録装置 |
JP2002374498A (ja) | 2001-06-15 | 2002-12-26 | Canon Inc | 画像符号化装置、画像記録装置、画像符号化方法、画像記録方法、コンピュータ読み取り可能な記憶媒体及びコンピュータプログラム |
JP2003324684A (ja) * | 2002-05-08 | 2003-11-14 | Toshiba Corp | 映像記録装置及び映像記録方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002028101A1 (fr) * | 2000-09-29 | 2002-04-04 | Kabushiki Kaisha Toshiba | Appareil d'enregistrement/de reproduction d'images et procede associe |
-
2004
- 2004-02-12 JP JP2005504991A patent/JP4439469B2/ja not_active Expired - Fee Related
- 2004-02-12 WO PCT/JP2004/001506 patent/WO2004073305A1/ja active Application Filing
- 2004-02-12 KR KR1020057003914A patent/KR100682205B1/ko not_active IP Right Cessation
- 2004-02-12 EP EP04710542A patent/EP1608166B1/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1168347A2 (en) | 2000-06-26 | 2002-01-02 | Matsushita Electric Industrial Co., Ltd. | Remaining recordable time calculation apparatus that converts amount of free area of recording medium into time |
EP1206134A2 (en) | 2000-11-08 | 2002-05-15 | Kabushiki Kaisha Toshiba | Recording rate automatic setting recording device and recording rate automatic setting recording method |
JP2002152657A (ja) * | 2000-11-08 | 2002-05-24 | Toshiba Corp | 録画レート自動設定録画装置及び録画レート自動設定録画方法 |
JP2002222586A (ja) | 2001-01-26 | 2002-08-09 | Sony Corp | 記録装置 |
JP2002313067A (ja) | 2001-04-13 | 2002-10-25 | Matsushita Electric Ind Co Ltd | 音楽記録装置 |
JP2002374498A (ja) | 2001-06-15 | 2002-12-26 | Canon Inc | 画像符号化装置、画像記録装置、画像符号化方法、画像記録方法、コンピュータ読み取り可能な記憶媒体及びコンピュータプログラム |
JP2003324684A (ja) * | 2002-05-08 | 2003-11-14 | Toshiba Corp | 映像記録装置及び映像記録方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1608166A4 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006196163A (ja) * | 2005-01-12 | 2006-07-27 | Thomson Licensing | 記録媒体におけるa/v信号を記録するための方法及び記録媒体から読み出し及び記録媒体に書き込みするための装置 |
US7840621B2 (en) | 2005-05-31 | 2010-11-23 | Casio Computer Co., Ltd. | Electronic apparatus and its control program |
CN101558448B (zh) * | 2006-12-13 | 2011-09-21 | 汤姆森许可贸易公司 | 用于获取并编辑音频数据和视频数据的系统和方法 |
JP2008243246A (ja) * | 2007-03-26 | 2008-10-09 | Funai Electric Co Ltd | 光ディスク記録装置 |
WO2010038475A1 (ja) * | 2008-10-03 | 2010-04-08 | パナソニック株式会社 | コンテンツ配信システム、端末装置、コンテンツ配信装置、付加情報配信装置、コンテンツ記録方法及び記録媒体 |
JP5584131B2 (ja) * | 2008-10-03 | 2014-09-03 | パナソニック株式会社 | コンテンツ配信システム、端末装置、コンテンツ配信装置、付加情報配信装置、コンテンツ記録方法及び記録媒体 |
CN101930770A (zh) * | 2010-08-19 | 2010-12-29 | 福建星网锐捷通讯股份有限公司 | 一种视频数据快速搜索切片引擎及其搜索方法 |
JP2016122884A (ja) * | 2014-12-24 | 2016-07-07 | 株式会社東芝 | 電子機器、及び録画方法 |
Also Published As
Publication number | Publication date |
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KR20050042491A (ko) | 2005-05-09 |
EP1608166B1 (en) | 2012-08-22 |
KR100682205B1 (ko) | 2007-02-12 |
EP1608166A4 (en) | 2009-12-02 |
JPWO2004073305A1 (ja) | 2006-06-01 |
EP1608166A1 (en) | 2005-12-21 |
JP4439469B2 (ja) | 2010-03-24 |
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