WO2005104543A1 - データ処理装置 - Google Patents
データ処理装置 Download PDFInfo
- Publication number
- WO2005104543A1 WO2005104543A1 PCT/JP2005/007251 JP2005007251W WO2005104543A1 WO 2005104543 A1 WO2005104543 A1 WO 2005104543A1 JP 2005007251 W JP2005007251 W JP 2005007251W WO 2005104543 A1 WO2005104543 A1 WO 2005104543A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- video
- data stream
- data
- resolution
- recording medium
- Prior art date
Links
Classifications
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2541—Blu-ray discs; Blue laser DVR discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
- G11B2220/2575—DVD-RAMs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/781—Television signal recording using magnetic recording on disks or drums
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/84—Television signal recording using optical recording
- H04N5/85—Television signal recording using optical recording on discs or drums
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/907—Television signal recording using static stores, e.g. storage tubes or semiconductor memories
-
- 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
-
- 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
- H04N9/806—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 with processing of the sound signal
- H04N9/8063—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 with processing of the sound signal using time division multiplex of the PCM audio and PCM video signals
Definitions
- the present invention relates to a technology for receiving a data stream such as a digital broadcast and recording the data stream on a loaded recording medium in a data processing apparatus capable of loading a recording medium of a different type.
- a conventional analog broadcast video is displayed in an interlaced format using 525 scanning lines, and is called a standard resolution video or an SD (Standard Definition) video.
- digital broadcast video is displayed using 1125 scanning lines even in the same interlaced format, or is displayed in progressive format using the same 525 scanning lines, and SD video is displayed.
- High-resolution video, high-quality video, or HD (High Definition) video because of its higher quality.
- an image that has more scanning lines than an SD image or that is displayed in a progressive system is called an HD image.
- Patent Document 1 discloses a recording / reproducing apparatus that records and reproduces HD video using a hard disk as such a recording medium. This recording / reproducing apparatus further has a function of recording data on a standard optical disc capable of recording only SD video data, and dubbing the video recorded on the hard disk to the optical disc. be able to.
- Patent Document 1 Japanese Patent Laid-Open No. 2002-330401
- the above-described recording / reproducing apparatus records HD video data using the data transfer rate and recording capacity of a hard disk that cannot be removed. Therefore, when receiving HD video data, the hard disk is not used. The form cannot be assumed! / ⁇ . If the content of HD video is recorded on a standard optical disk, it is necessary to record the HD video on a node disk, then convert it to SD video and dub it to a standard optical disk. Cost. The user needs to perform dubbing operation after recording, which is inconvenient.
- the data processing device of the present invention is capable of loading a first type of recording medium and a second type of recording medium, and records a data stream on the loaded recording medium.
- the first type of recording medium is capable of recording a data stream relating to a standard resolution video in a first format
- the second type of recording medium is capable of recording the standard resolution and a video having a resolution higher than the standard resolution.
- Data stream can be recorded in the second format.
- the data processing device is loaded with a recording medium, and specifies a drive of the type of the loaded recording medium, receives the data stream of the second format, extracts a video data stream, and specifies the resolution of the video.
- a data stream based on the data stream of the second format is transmitted to the first path.
- a switch for transmitting the data stream of the second format to a second path and a switch for transmitting the data stream of the second format via the first path.
- a conversion unit that converts the resolution of the image of the data stream received to the standard resolution into a standard resolution, and the second unit based on the data stream converted to the standard resolution.
- an encoder that generates a data stream in one format.
- the data processing device wherein the drive records a data stream from the encoder and a data stream from the second path on a loaded recording medium.
- the data processing apparatus further includes an analog signal processing unit that receives an analog signal related to video and generates a data stream of a standard resolution video.
- the encoder may generate a data stream in a first format based on the data stream generated by the analog signal processing unit.
- the data processing apparatus further includes a control unit that receives and manages time information regarding a recording start date and time and an end date and time in advance.
- the control unit may instruct the processing unit to start and stop receiving the data stream in the second format based on the time information! / ⁇ .
- the conversion unit adds resolution information for specifying the resolution before conversion to the data stream converted to the video of the standard resolution, and the encoder includes the first encoder in which the resolution information is stored.
- a format data stream may be generated.
- the switch may transmit the data stream in the second format to a second path.
- the switch transmits a data stream based on the data stream of the second format to a first path.
- the encoder generates the data stream in the second format based on the data stream converted to the standard resolution by the conversion unit.
- the data processing device of the present invention when a recording medium capable of recording a data stream of a standard resolution video is loaded and a data stream of a high resolution video is received, The image is converted into a resolution image and recorded on a recording medium. At this time, since the format of the data stream to be received is different from the format of the data stream recordable on the recording medium, a data stream of a format suitable for the recording medium is generated. On the other hand, when a recording medium capable of recording a high-resolution video data stream is mounted, the recording is performed without conversion of the resolution and format on the recording medium. Misaligned data streams for high-resolution and standard-resolution video Even if a recording is received, the data can be recorded directly on such a recording medium. No resources are required, and the time and effort required for re-conversion and re-recording are also eliminated. Thus, hardware resources can be effectively used, and user convenience and operability can be improved.
- FIG. 1 is a diagram showing a data structure of an MPEG-2 transport stream 10.
- FIG. 2 (a) shows a data structure of a video TS packet 30, and FIG. 2 (b) shows a data structure of an audio TS packet 31.
- FIG. 3 (a) to (d) are diagrams showing the relationship between video TS packets and data of video pictures.
- FIG. 4 is a diagram showing a configuration of a functional block of the recorder 100.
- FIGS. 5A and 5B are diagrams showing the configuration and processing of a resolution conversion unit 130.
- FIG. 6 is a diagram showing a correspondence relationship between pixels of an HD video and an SD video when an SD video is generated by arbitrarily adjusting the resolution of the HD video.
- FIG. 7 is a diagram showing a functional block configuration of an MPEG-2 PSZTS encoder 138.
- FIG. 8] (a) to (c) are diagrams showing a data structure of a PS.
- FIG. 9 is a flowchart showing a procedure of a process when the recorder 100 receives a digital signal.
- FIG. 10 is a flowchart showing a procedure of a PS generation process of the recorder 100.
- FIG. 11 is a flowchart showing a procedure of a recording process of the recorder 100.
- FIG. 12 is a flowchart showing a procedure of a dubbing process of the recorder 100.
- the optical disk recorder can receive a digital broadcast data stream related to HD video and Z or SD video and record it on a loaded or built-in recording medium.
- the recording medium is, for example, a Blu-ray Disc (BD), a DVD-R, a DVD-RAM hard disk, or an SD memory card.
- BD Blu-ray Disc
- DVD-R DVD-R
- DVD-RAM DVD-RAM hard disk
- SD memory card an SD memory card
- the BD is an optical disk on which data is written and read using a 405 nm blue-violet laser beam.
- the recording capacity of a BD is about 25 gigabytes per information recording layer, and its data transfer rate is about 36 megabits per second.
- DVD-R and DVD-RAM are optical disks on which data is written and read using a 650 nm red laser beam.
- DVD recording capacity is about 4.7 per information recording layer Gigabytes
- the data transfer rate of DVD-RAM version 2.0 is about 22 megabits per second.
- FIG. 1 shows a data structure of the MPEG-2 transport stream 10.
- An MPEG-2 transport stream 10 (hereinafter referred to as “TS 10”) includes a plurality of TS OBject Units (TOBUs) 21, each of which is capable of transmitting one or more transport packets (TS packets). It is configured.
- the TS packet includes, for example, a video TS packet (V—TSP) 30 storing compression-coded video data, an audio TS packet (A_TSP) 31 storing (compressed) coded audio data, and the like.
- V—TSP video TS packet
- A_TSP audio TS packet
- Packet containing program guide (program, association 'table; PAT), packet (PMT-TSP) containing program correspondence table (program, map, table; PMT) and program clock reference Includes packets (PCR-TSP) in which (PCR) is stored.
- the data amount of each packet is 188 bytes.
- FIG. 2A shows the data structure of the video TS packet 30.
- the video TS packet 30 has a transport packet header 30a of 4 bytes and video data 30b of 184 bytes.
- FIG. 2B shows the data structure of the audio TS packet 31.
- the audio TS packet 31 has a transport packet header 31a of 4 bytes and audio data 31b of 184 bytes.
- a TS packet generally includes a 4-byte transport bucket header, 184-byte elementary data, and power.
- the packet header describes a packet identifier (Packet ID; PID) that specifies the type of the packet.
- PID packet identifier
- the elementary data is content data such as video data and audio data, control data for controlling reproduction, and the like. What data is stored depends on the type of packet.
- the TS packet of the TS packet The data storage area after the header is called the “payload” of the TS packet when content data such as video data and audio data is stored, and the “adaption field” when control data is stored. ".
- FIGS. 3 (a) to 3 (d) show the relationship between video TS packets and video picture data.
- Fig. 3 (a) [As shown] [Includes TS lOi, hi, hi, and delighted TS knobs 40a-40d.
- TS10 (This is the power that can include other packets.
- the video TS packet is easily specified by the PID stored in the header 40a-1.
- a packetized elementary stream is configured from video data of each video TS packet such as the video data 40a-2.
- FIG. 3 (b) shows the data structure of the Packeti-Dani Elementary Stream (PES) 41.
- the PES 41 is composed of a plurality of PES packets 41a, 41b and the like.
- the PES packet 41a is composed of a PES header 41a-1 and picture data 41a-2, and these data are stored as video data of a video TS packet!
- the picture data 41a-2 includes data of each picture.
- An elementary stream is composed of the picture data 41a-2.
- FIG. 3C shows the data structure of the elementary stream (ES).
- the ES 42 has a plurality of sets of picture headers and frame data or field data. Note that a "picture” is a force generally used as a concept including a shift between a frame and a field.
- the picture header 42a shown in Fig. 3 (c) describes a picture header code that specifies the picture type of the frame data 42b arranged after that.
- the picture header 42c describes the picture type of the frame data 42d.
- the picture header code to be specified is described.
- the type indicates an I picture (I frame), P picture (P frame) or B picture (B frame). If the type is I frame, the picture header code is, for example, "
- the frame data 42b, 42d, and the like are data of one frame that can be constructed only by the data or by the data and the data decoded before and after or after the data.
- FIG. 3 (d) shows a picture 43a in which the frame data 42b is also constructed and a picture 43b which is constructed from the frame data 42d.
- Each picture is composed of multiple pixels 44, and the number of vertical and horizontal pixels is defined according to the resolution of the video
- the TS 10 is recorded on the BD and the node disk while maintaining the data structure shown in FIG. Since the recording data rate of the BD and hard disk is higher than the transmission data rate of the HD video data stream, recording can be performed without deteriorating the image quality of the HD video.
- SD video can be similarly recorded on BDs and node discs.
- TS 10 cannot be recorded on a DVD.
- the standard specifies that the format of a data stream that can be recorded on a DVD is an MPEG-2 program stream (described later).
- the recording data rate of DVD is lower than the transmission data rate of the data stream of HD video, HD video cannot be recorded with the same image quality.
- FIG. 4 shows a configuration of functional blocks of the optical disk recorder 100 with a built-in hard disk.
- An optical disk recorder 100 with a built-in hard disk includes a hard disk drive (HDD) 106, a digital signal receiving unit 108a, an IEEE1394 interface 108b, a digital signal processing unit 110, Analog signal processing section 120, resolution conversion section, switches 132, 134 and 136, MPEG-2 PS / TS encoder 138, system control section 140, recording control section 142, drive control section 144, memory And a card control unit 146.
- the recorder 100 is loaded with a recordable DVD 102 and BD 104.
- the DVD 102 is, for example, a DVD-RAM, a DVD-R, or the like.
- the recorder 100 can write data to the DVD 102 or the BD 104 independently of the HDD 106.
- the recorder 100 determines whether the loaded optical disk is the DVD 102 or the BD 104 when recording a digital broadcast. If the BD104 is loaded, the TS10 is recorded on the BD104 as is, regardless of whether the received TS10 video is HD video or SD video. On the other hand, if the DVD 102 is loaded, the recorder 100 sets the TS 10 to the program stream (hereinafter referred to as “PS”). Need to be converted to At this time, the recorder 100 specifies whether the video in the TS 10 being received is HD video or SD video, and if it is an SD video, generates a PS with the same image quality and records it in DV D102.
- PS program stream
- the recorder 100 records the data stream directly on the loaded optical disc at a recording rate and data format corresponding to the loaded optical disc, so that it is not necessary to temporarily accumulate the data stream, so that the broadcast end is completed. Thus, the recording on the optical disc can be ended.
- the TS 10 can be stored in the HDD 106 instead of the BD 104.
- the TS 10 is stored in the HDD 106 in order to eliminate recording failure.
- Digital signal receiving section 108a digitizes a signal waveform obtained by receiving a broadcast wave.
- the IEEE1394 interface (IZF) 108b controls data transfer between an externally connected device (not shown) and the recorder 100.
- the digital signal processing unit 110 receives the TS 10 from the digital signal receiving unit 108a, the IEEE1394 I / F 108b, and the drive control unit 144. Then, the digital signal processing unit 110 outputs the TS 10 as it is in accordance with a predetermined condition, or decodes the TS 10 and outputs an uncompressed digital video signal and digital audio signal.
- the digital signal processing unit 110 has a stream extraction unit 112, a switch 114, and a decoder 116.
- the TS 10 may include data streams of a plurality of programs.
- the stream extracting unit 112 extracts a data stream of a specific program in accordance with a channel selection instruction from the system control unit 140.
- the stream extracting unit 112 extracts the program guide packet (PAT-TSP) and the program correspondence table packet (PMT-TSP) shown in FIG. 1, and extracts a data stream for each program content.
- PAT-TSP program guide packet
- PMT-TSP program correspondence table packet
- the packet ID (PID) of the turn and table packet since 0 is given to the packet ID (PID) of the turn and table packet, a packet having that value may be searched.
- the program table in the program table packet stores each program number and the PID of the program correspondence table packet of each program corresponding to the program number. Therefore, the packet ID (PID) of the program correspondence table PMT corresponding to the program number X can be specified. Let XX be the PID of the program correspondence table PMT.
- the program correspondence table PMT stores, for each program, a PID of a TS packet storing video / audio information and the like constituting each program as a target of viewing.
- the PID of video information of program number X is XV
- the PID of audio information is XA.
- the stream extracting unit 112 also specifies whether the extracted TS video is an SD video HD video, for example, by using a descriptor described in the header of the stream.
- the descriptor indicates whether the video quality is SD or HD.
- the stream extraction unit 112 also outputs resolution information specifying the resolution.
- the switch 114 switches the path through which the TS is transmitted. This switching is performed based on disk type information from the system control unit 140 and resolution information from the stream extraction unit 112, which will be described later. Specifically, when the DVD 102 is loaded and the video of the TS is an HD video, the switch 114 outputs the TS to a path connected to the decoder 116. On the other hand, when the BD 104 is loaded, when the HDD 106 is specified as the storage destination of the TS, or when neither the DVD 102 nor the BD 104 is loaded, the switch 114 is connected to the path connected to the switch 132. Output TS.
- the switch 114 outputs the TS to the path connected to the switch 132 so as to output the TS.
- the route may be switched.
- the decoder 116 receives the TS from the switch 114 or the drive control unit 144.
- the decoder 116 separates the TS into video and audio packets, and acquires video data and audio data. Then, the decoder 116 decompresses the compression-encoded video data to generate and output an uncompressed digital video signal (for example, REC656, 601 and the like). At this point, the image quality of the HD video and the SD video does not change.
- This digital video signal is digital data for each video frame. Further, the decoder 116 decodes the compressed and encoded audio data and outputs an uncompressed digital video / audio signal. This digital audio signal is digital data for each audio frame.
- the resolution conversion unit 130 receives the uncompressed digital video signal, converts it to an SD video if it is an HD video, and outputs it directly if it is an SD video.
- FIGS. 5A and 5B show the configuration and processing of the resolution conversion unit 130.
- the resolution conversion unit 130 sequentially receives pixel data of pixels such as the pixel 44 (FIG. 3D), performs a predetermined operation using a plurality of pixel data, and outputs one pixel data. That is, the resolution conversion unit 130 generates one pixel configuring the SD video from a plurality of pixels configuring the HD video.
- the resolution conversion unit 130 outputs the pixels P (i, to 1), P (i-1, to 1), P (i, to 1), and P (i + 1, to 1) of the HD video shown in FIG. 1) and the pixel data of P (i, j) are received, and transmission is delayed for a predetermined period by delay circuits 130a to 130e. Then, at the timing when these pixel data can be obtained at the same time, when the pixel data is multiplied by a predetermined filter coefficient and input to the calculator 131, the calculator 131 calculates a weighted average and calculates Is output.
- HD video can be converted to SD video.
- one pixel of the SD video was output based on five adjacent pixels.
- an SD video may be generated based on distant pixels.
- simply adopting every other pixel data of the HD video to reduce the resolution of the HD video in half both vertically and horizontally You may get SD video.
- the resolution can be converted to a certain number of pixels and a desired number of pixels by setting a filter coefficient by a known technique so that aliasing distortion does not occur.
- FIG. 6 shows the correspondence between the pixels of the HD video and the pixels of the SD video when the resolution of the HD video is arbitrarily adjusted to generate the SD video.
- the resolution conversion unit 130 can generate a black point pixel from an HD image pixel indicated by a white point, and obtain an SD image composed of black point pixels.
- the relationship between the values of the filter coefficients and the output data has been studied in the past, and the filter coefficients for outputting the desired data can be easily determined by using the results of such research. . Therefore, in this embodiment, a detailed description of a specific method for deriving the filter coefficient will be omitted.
- the switch 132 forms a signal path so that the TS 10 from the digital signal processing unit 110 is transmitted to the drive control unit 144.
- the switch 132 forms a signal path so that when a data stream (TS or PS) is output from an MPEG-2PSZTS encoder 138 described later, the data stream is transmitted to the drive control unit 144.
- switches 134 and 136 When receiving a digital signal, switches 134 and 136 transmit the digital video signal of the SD video from resolution conversion section 130 and the digital audio signal from digital signal processing section 110 to encoder 138, respectively.
- the signal path is formed as follows.
- switches 134 and 136 When receiving an analog signal, switches 134 and 136 form signal paths so that the digital video signal and digital audio signal from analog signal processing section 120 are transmitted to encoder 138, respectively.
- An MPEG-2 PSZTS encoder 138 receives a digital video signal and a digital audio signal, and generates a TS or a PS.
- FIG. 7 shows a functional block configuration of the MPEG-2 PSZTS encoder 138.
- the encoder 138 generates a TS when receiving disc type information indicating that the BD 104 is loaded from the system control unit 140, and generates a TS when receiving the disc type information indicating that the DVD 102 is loaded.
- the encoder 138 has a path for processing each of the digital video signal and the digital audio signal. First, a process in which the encoder 138 generates a TS will be described. TS The generation process is shown in FIG. 3 as appropriate in order to correspond to the process of constructing the ES42 in FIG. 3 (c) and the PES41 and TS10 in FIG. 3 (b) sequentially from the data of each frame in FIG. This will be described using reference numerals.
- the video encoder 70a of FIG. 7 receives an uncompressed digital video signal.
- Uncompressed digital video signals include data per frame!
- the video encoder 70a performs a compression encoding process on the data in accordance with the MPEG-2 standard, attaches picture headers 42a and 42c, and outputs the ES42.
- the PES generation unit 71a receives the ES42 as picture data, adds a PES header 41a-1, etc., and generates a PES packet. PES packets are sequentially output as PES41.
- the switch 72a outputs the PES 41 output from the PES generation unit 71a to the video TS packet generation unit 73a based on the above-described disc type information.
- the video TS packet generation unit 73a divides the PES 41, adds the TS packet header 40a-1, etc., and generates a 188-byte video TS packet (V-TSP) (FIG. 2 (a)). Then, the signal is output to the multiplexing unit 75.
- V-TSP video TS packet
- digital audio signals are processed in substantially the same manner. That is, the audio encoder 70b performs (compression) encoding processing conforming to a predetermined standard on data obtained from the digital audio signal, attaches a header, and generates an elementary stream.
- the PES71b adds a PES header to the elementary stream and generates a PES bucket for each audio frame. PES packets are sequentially output as PES.
- the switch 72b outputs the PES output from the PES generation unit 71b to the audio TS packet generation unit 73b based on the above-described disc type information.
- the audio TS packet generating unit 73b divides the audio PES, attaches a TS packet header thereto, and generates an audio TS packet (A-TSP) of 188 bytes (FIG. 2 (b)). Then, the signal is output to the multiplexing unit 75.
- the multiplexing unit 75 receives the video TS packet and the audio TS packet, and outputs a TS in which various packets are arranged as shown in FIG.
- FIGS. 8A to 8C show the data structure of the PS.
- the video encoder 70a in FIG. 7 receives an uncompressed digital video signal including data for each frame.
- the video encoder 70a converts the frame data into MPEG-2
- the picture data is generated by performing a compression encoding process in accordance with the standard.
- the compressed and decoded picture data is sent to the PES generation unit 71a.
- the PES generation unit 71a adds a PES header 81-1 to the picture data to generate a PES packet.
- FIG. 8A shows the data structure of the PES packet 81.
- the PES packet 81 is composed of a PES header 81-1 followed by compression-encoded picture data 81-2. Multiple PES packets are output sequentially as PES.
- the switch 72a outputs the PES81 output from the PES generation unit 71a to the video pack generation unit 74a based on the disc type information indicating that the DVD 102 is loaded.
- the video pack generation unit 74a adds a pack header and a PES header to the pack data obtained by dividing the picture data 81-2, and generates a video pack (V_PCK) of 2048 bytes.
- V_PCK video pack
- the signal is output to the multiplexing unit 75.
- FIG. 8 (b) shows the data structure of the pack sequence.
- FIG. 8 (b) shows two packs. Taking the pack 82 arranged first as an example, the knock 82 has a pack header 82-1, a PES header 82 2 and a pack data 82-3 arranged in order of the head force!
- digital audio signals are generally processed in the same manner. That is, the audio encoder 70b generates audio data by performing (compression) encoding processing on data from which digital audio signal power is also obtained in accordance with a predetermined standard. The audio data is sent to the PES generator 7 lb. Then, the PES generation unit 71b adds a header to generate a PES packet, and the switch 72b outputs the PES output from the PES generation unit 71b to the audio pack generation unit 74b based on the disc type information described above. . The audio pack generation unit 74b divides the audio PES, adds a pack header and a PES header, and generates a 2048-byte audio pack (A-PCK). Then, the signal is output to the multiplexing unit 75.
- A-PCK 2048-byte audio pack
- the multiplexing unit 75 receives the video pack and the audio pack, arranges them as appropriate, and outputs the PS.
- FIG. 8C shows the data structure of the PS83 generated by the multiplexing unit 75. It is understood that the video pack 82 and the audio pack 84 are mixedly arranged in the PS83.
- the drive control unit 144 controls transmission and reception of data between the optical disk drive and the HDD 106.
- the drive control unit 144 is, for example, an ATA or ATAPI standard. It is a controller according to the case.
- a control circuit for controlling each drive is provided in the optical disk drive for exchanging data with the drive control unit 144 and the HDD 106. Therefore, the drive control unit 144 exchanges data with the control circuit.
- the optical disk drive also includes a spindle motor for rotating the DVD 102 and the BD 104, an optical head (not shown) for emitting a semiconductor laser beam of an appropriate wavelength to the DVD 102 and the BD 104 and recording a data stream. It has.
- the HDD 106 is also provided with a spindle motor for rotating a node disk, a magnetic head (the deviation is not shown), and the like.
- the drive control unit 144 also acquires information for specifying the type of the optical disk loaded by the user from the DVD drive or BD drive, and sends the information to the system control unit 140. As a result, it is possible to determine not only whether the loaded optical disk is the BD 104 or the DVD 102 but also whether the DVD is a DVD-R or a DVD-RAM. Then, the system control unit 140 can determine the necessity of resolution conversion and format conversion of the input stream.
- control circuit of the DVD drive or BD drive specifies the type of optical disk.
- discrimination information for specifying the type of the optical disc is recorded in the inner peripheral portion of the optical disc at the time of manufacture, and the control circuit of the drive may optically read the discrimination information using an optical head (not shown).
- the control circuit may detect the intensity and specify the type of the optical disk.
- the control circuit may determine the shape of the cartridge depending on the type of recording medium. Either can be detected using the optical and physical characteristics of the loaded optical disk.
- the drive control unit 144 receives the TS or PS, and writes the received TS or PS to the built-in HDD 106 and the loaded DVD 102 or BD 104.
- the drive control unit 144 can record data on the HDD 106 using either TS or PS.
- TS can be recorded on BD104.
- a PS can be recorded on the DVD 102.
- the type of writable PS differs depending on the type of the DVD 102 (DVD-R or DVD-RAM, etc.).
- "PS type" is defined as a program stream standard. Indicates one of the VD video standard and DVD video recording standard.
- the system control unit 140 is a CPU that comprehensively controls the operation of the recorder 100.
- the system control unit 140 operates the recorder 100 and realizes its function according to a procedure described later with reference to FIGS. 9 to 12.
- the control operation of the system control unit 140 is based on the processing of a program stored in a memory (not shown) in advance.
- the system control unit 140 receives a recording instruction from the user and outputs a channel selection instruction for specifying a channel to be recorded. Also, at the time of executing the scheduled recording, it outputs a channel selection instruction for specifying the channel of the reserved program.
- a recording execution request and a notification of the reservation information are received from the recording control unit 142 described below, and the digital signal processing unit 110, the encoder 138, the drive control unit 144, and the like are in accordance with the request and the reservation information. To perform the recording process.
- the recording control unit 142 is provided for controlling programmed recording.
- the recording control unit 142 receives and manages reservation information on reservation contents from the user in advance.
- the reservation information is, for example, time information on the recording start date and time and end date and time, and channel information on the channel number to be recorded.
- the recording control unit 142 requests the system control unit 140 to execute the recording, and transmits the reservation information.
- the system control unit 140 instructs the stream extraction unit 112 to start TS reception together with a channel selection instruction. Then, the reception of the TS is continued until the recording end date and time, and when the end date and time is reached, an instruction to stop receiving the TS is issued.
- the time information and the channel information are input via a hardware button of the recorder 100 and a remote controller (not shown) and sent to the recording control unit 142.
- the memory card control unit 146 controls data transfer between the memory card loaded in the recorder 100 and the recorder 100.
- a memory card is a recording medium using a semiconductor, for example, an SD memory card and a memory stick are standardized.
- the memory card loaded in the recorder 100 will be described as an SD memory card 148.
- the recorder 100 includes the digital signal receiving unit 108a.
- the digital signal receiving unit 108a may be provided in a device separate from the recorder 100, for example, in a set-top box. In such a case, via IEEE1394I / F108b etc. TS may be received.
- the analog signal processing unit 120 receives the analog video signal and the analog audio signal, converts each of them into a digital signal, and outputs the digital signal.
- analog video signals and analog audio signals are terrestrial television broadcast signals and signals that also receive external equipment such as VCRs.
- the video of this analog video signal is an SD video.
- the analog signal processing unit 120 includes an analog signal receiving unit 122, a video Z audio switching circuit 124, a video AD converter 126, and an audio AD converter 128.
- the analog signal receiving unit 122 is, for example, an analog tuner, and selects and outputs an analog video / audio signal of a designated channel via a terrestrial television broadcast signal obtained via an antenna (not shown).
- the analog signal receiving section 122 is a line input terminal, and receives and outputs analog video / audio signals from external devices.
- Analog video and audio signals include analog video and audio signals.
- the video Z audio switching circuit 124 separates and outputs the analog video signal and the analog audio signal.
- the video AD converter 126 converts an analog video signal into a digital video signal.
- the audio AD converter 128 converts an analog audio signal into a digital audio signal. Since the general configurations and operations of the analog signal processing unit 120, the video AD converter 126, and the audio AD converter 128 are well known, the description thereof will be omitted in this specification.
- the digital video signal of SD quality output from the video AD converter 126 is input to the encoder 138 via the switch 134, and the digital audio signal output from the audio AD conversion 128 is input to the encoder 138 via the switch 136. Is done. Switches 134 and 136 form signal paths such that a digital video signal of SD video from video AD converter 126 and a digital audio signal from audio AD conversion 128 are transmitted to encoder 138, respectively.
- the encoder 138 generates a data stream of the SD video based on the received digital video signal.
- the encoder 138 generates a PS when the DVD 102 is loaded, and generates a TS when the BD 104 is loaded. Note that the processing at this time is the same as the processing when the digital video signal from the resolution conversion unit 130 and the digital audio signal from the digital signal processing unit 110 are received. Is omitted.
- FIG. 9 shows a procedure of processing when the recorder 100 receives a digital signal.
- the drive control unit 144 specifies the type of the loaded disc (BDZDVD), and transmits the disc type information to the system control unit 140.
- the stream extraction unit 112 of the digital signal processing unit 110 receives the TS and selects the specified channel.
- step S93 the switch 114 receives the disc type information from the system control unit 140, and determines whether the type of the loaded disc is DVD. If it is not a DVD, that is, if a BD is loaded, the process proceeds to step S94, and if it is a DVD, the process proceeds to step S95.
- step S94 the selected TS is sent from the digital signal processing unit 110 to the drive control unit 144 via the switch 132, and is recorded on the BD 104 while maintaining the data structure of the TS. Then, when the recording is completed, the processing of the recorder 100 is also terminated.
- step S95 the resolution conversion unit 130 receives the uncompressed digital video signal decoded by the decoder 116, and determines whether or not the video of the signal is HD video. In the case of HD video, the process proceeds to step S96. If it is not an HD video, that is, if it is an SD video, the process proceeds to step S97. In the latter case, the resolution conversion unit 130 outputs the data without any particular processing. In step S96, the resolution conversion unit 130 converts the HD video into an SD video. Then, the process proceeds to step S97.
- step S97 the encoder 138 generates a PS based on the digital video signal of the SD video output from the resolution conversion unit 130 and the digital audio signal obtained from the digital signal processing unit 110.
- the specific processing performed in step S97 will be described later with reference to FIG.
- step S98 the drive control unit 144 records the obtained PS on the DVD 102.
- the TS included in the TS is recorded on the BD 104 as it is without any particular determination of an HD video SD video. It is also possible to convert HD video to SD video before recording on BD104. In this case, the TS may be decoded and converted from the HD video to the SD video, and then the TS may be generated again. When this TS is written to BD104, the data amount becomes significantly smaller than the original TS. This allows BD 104 can store more programs.
- FIG. 9 can be applied in a similar manner to reception of a force analog signal, which is processing at the time of receiving a digital signal.
- step S92 analog video / audio signals are received instead of TS.
- step S94 the TS generated from the analog video / audio signal is recorded on the BD. Also, the processing in steps S95 and S96 is unnecessary.
- FIG. 10 shows a procedure of a PS generation process of the recorder 100 according to the present embodiment.
- the process of generating the PS differs depending on whether the loaded disc is a DVD-R or a DVD-RAM (that is, the type of DVD102).
- step S101 the encoder 138 determines whether or not the received audio signal includes a plurality of audio streams.
- the “plurality of audio streams” means each audio stream such as an original voice and a dubbed voice recorded in a bilingual broadcast. If a plurality of audio streams are included, the process proceeds to step S102. If not, the process proceeds to step S103.
- the reason for judging whether or not a plurality of audio streams are included is that the processing method of multiple audio streams differs between DVD-R and DVD-RAM.
- step S102 the encoder 138 determines whether the type of the DVD 102 to which the PS is written is DV 0-1 ⁇ or 0 ⁇ 0-1 ⁇ 01. If it is DVD-R, the process proceeds to step S104, and if it is DVD-RAM, the process proceeds to step S105. This determination is made, for example, based on the disk type information.
- step S103 the components from the audio encoder 70b to the audio pack generation unit 74b shown in FIG. 7 process the digital audio signal of the audio stream to generate an audio pack. Thereafter, the process proceeds to step S106.
- step S104 the audio encoder 70b generates an audio pack based on the digital audio signal of one preselected audio stream.
- DVD-R cannot record multiple audio streams in parallel. Also, multiple independent audio streams cannot be multiplexed into one audio stream. Therefore, when a program to be recorded contains multiple sounds and the DVD-R is loaded, It is assumed that the user selects whether to select a voice on a screen such as a TV (not shown) and inquires, and the user has previously selected.
- step S104 only the audio stream specified based on this selection is compression-coded and stored as PS audio data. Thereafter, the process proceeds to step S106.
- step S105 the audio encoder 70b generates an audio pack of one audio stream based on the digital audio signals of the plurality of audio streams.
- DVD-RAM cannot record multiple audio streams in parallel.
- DVD-RAM can multiplex the data of multiple independent audio streams into one audio stream. For example, original sound can be multiplexed on the L1 channel, and dubbed sound can be multiplexed on the R1 channel. Therefore, the audio encoder 70b encodes (compresses) the plurality of input audio signals to generate one audio stream. Thereafter, the process proceeds to step S106.
- step S106 the digital video signal of the SD video is processed through the processing by the components from the video encoder 70a to the video pack generation unit 74a shown in FIG. 7 to generate a video pack. Thereafter, the process proceeds to step S107.
- step S107 the multiplexing unit 75 multiplexes the audio pack and the video pack and outputs the multiplexed audio pack and video pack as PS.
- a PS having a format corresponding to the type of the DVD 102 used for recording is generated.
- FIG. 11 shows a procedure of a recording process of the recorder 100 according to the present embodiment.
- One of the features of this recording process is that not only the program is simply recorded on the HDD 106 but also the recorded program is recorded so that it can be easily dubbed to the DVD 102 in the future.
- the disc type of the dubbing destination is DVD-R or DVD-RAM, and that BD104 is not included.
- the reason is that at the time of dubbing from the HDD 106 to the BD 104, processing such as stream conversion is unnecessary, and the data may be transferred as it is.
- the process of recording on the BD 104 and the process of recording on the HDD 106 are substantially the same, and in each case, the TS is written while retaining its data structure. Therefore, BD104 When dubbing is performed, it is sufficient to perform the processing of steps S112 and S113 described later.
- step S110 the system control unit 140 receives an instruction as to whether or not to perform recording in the direct recording mode. This is because, for example, at the time of recording setting or the like, the system control unit 140 displays on a screen such as a TV (not shown) and inquires, and the user selects and gives an instruction by watching the display. If recording is not performed in the direct recording mode, the process proceeds to step S111, and if recording is performed in the mode, the process proceeds to step S112.
- step S111 the system control unit 140 receives information for specifying the disc type of the dubbing destination. For example, if the user intends to use DVD-R in the future, input information specifying DVD-R. Then, the system control unit 140 can specify the type of the dubbing destination disk using the information. The optical disk is already loaded! In this case, the disc type information may be received from the drive control unit 144 and handled as information for specifying the disc type.
- step S112 digital signal receiving section 108a receives TS 10, and digital signal processing section 110 selects a specific channel. Then, in step S113, the drive control unit 144 records the selected TS10 in the HDD 106, and the process ends thereafter.
- step S114 digital signal receiving section 108a receives TS10, and digital signal processing section 110 selects a specific channel. Then, in step S115, the stream extraction unit 112 determines whether or not the extracted video of TS10 is an HD video. As described above, this determination can be specified by a descriptor in the header of the stream, for example. If it is an HD image, the process proceeds to step S116, and if it is not an HD image, the process proceeds to step S117.
- step S116 when the video stream of TS10 is decoded by decoder 116, resolution conversion section 130 converts the HD video into an SD video and outputs it. Thereafter, the process proceeds to step S117.
- step S117 system control section 140 determines whether or not the disc type of the dubbing destination is DVD-R. If it is DVD-R, the process proceeds to step S118,
- step SI18 the encoder 138 generates a PS for DVD-R.
- the “PS for DVD-R” is a PS generated by the processing of steps S104, S106 and S107 in FIG. 10 when included in a plurality of audio stream power STSs.
- step S119 the encoder 138 generates a PS for DVD-RAM.
- "DVD—PS for RAM” is a PS generated by the processing of steps S105, S106, and S107 in FIG. 10 when a plurality of audio streams are included in the TS.
- step S120 the drive control unit 144 records the obtained PS in the HDD 106, and then the process ends.
- a PS that can be directly written to the DVD-R or DVD-RAM is recorded in the HDD 106. Therefore, at the time of dubbing, a relatively time-consuming process such as stream analysis is not required, and only the PS data need be copied. Thereby, high-speed dubbing is realized.
- the dubbing to the BD 104 may be performed by copying the data of the TS 10 recorded in the HDD 106 to the BD 104 with the same data structure as described above.
- FIG. 12 shows a procedure of a dubbing process of the recorder 100 according to the present embodiment.
- step S 121 the system control unit 140 specifies the type of the loaded disk based on the disk type information from the drive control unit 144.
- the type here is
- the system control unit 140 determines that the disc type is DVD102
- step S124 It is determined whether it is 04. If it is BD104, the process proceeds to step S123, and if it is DVD102, the process proceeds to step S124.
- step S123 the drive control unit 144 reads out the TS 10 from the HDD 106 and records it on the BD 104.
- step S124 the system control unit 140 further specifies the type (DVD-R, DVD-RAM) of the DVD 102, and determines whether or not a PS corresponding to the type exists on the HDD 106.
- the PS according to the type means a PS for DVD-R for DVD-R and a PS for DVD-RAM for DVD-RAM. Both words are This is as described in connection with the description of steps SI18 and SI19 in FIG. If a PS corresponding to the type of the DVD 102 exists, the process proceeds to step S125. If the PS does not exist, the process proceeds to step S126.
- step S125 the drive control unit 144 reads the corresponding PS from the HDD 106. Then, in step S127, the drive control unit 144 records the PS on the disc (DVD-RZDVD-RAM) of the dubbing destination.
- step S126 the TS is read from the HDD 106, and a PS force corresponding to the type of DVD is generated.
- This processing will be described specifically.
- the drive control unit 144 reads a TS from the HDD 106, it sends the TS to the decoder 116 in the digital signal processing unit 110.
- the decoder 116 separates the video stream and the audio stream in the TS and decodes them to output a video signal and an audio signal.
- the resolution conversion unit 130 converts the HD video into an SD video.
- the resolution conversion section 130 outputs the video signal of the SD video as it is.
- the resolution of the SD video may be converted to a different resolution as needed within the range of the SD video.
- the video signal and the audio signal of the SD video are sent to the encoder 138.
- the encoder 138 performs the processing shown in FIG. 10 to generate a PS according to the type of DVD.
- the drive control unit 144 records the PS on the disc (DVD-RZDVD-RAM) of the dubbing destination. Thus, the dubbing process is completed.
- step S126 is the same as the dubbing process that has been performed conventionally.
- the dubbing process conventionally performed is complementarily adopted. You.
- Well-known devices capable of digital recording on DVDs usually include the analog signal processing described above.
- a signal processing circuit for performing the same processing as that of the processing unit 120 is provided, and an encoder for receiving a digital signal from the circuit and converting it to a PS is also provided. Therefore, in general, the cost increase due to the provision of the analog signal processing unit 120 and the encoder 138 does not become a big problem.
- the PS for recording on the DVD is generated by using the encoder 138 provided in this way when receiving the TS.
- the conversion from TS to PS is necessary, the output from the digital signal processing unit 110 has already been decompressed, and the processing performed by the encoder 138 is the same.
- the configuration that is necessary for tracking is the resolution conversion unit 130 and the switches 134 and 136.
- the video can be directly recorded on a DVD after converting the resolution of the video if necessary. Therefore, it is possible to effectively use the existing one encoder 138 and to enhance user convenience.
- the recorder 100 may store the resolution information indicating whether the broadcast video is the SD video HD video in the PS and record it on the DVD 102. For example, if the HD video power is also converted to SD video, describe the value indicating that the video was before conversion, and if it was originally an SD video, describe the value indicating that it was SD video. Describe.
- the program is reproduced, the user is notified of the image quality of the broadcast video based on the resolution information. This allows the user to know whether the program was broadcast in the HD video broadcasted in the SD video, and in the event of being broadcast in the HD video, recognizes the presence of the source of the HD video.
- the information indicating whether the broadcasted video is an SD video or an HD video is described, for example, in a manufacturer's information field in the RDI pack of the DVD video recording standard when the PS is recorded. do it.
- the "manufacturers' information field" is a data field in which arbitrary information predetermined by the manufacturer (manufacturer) of the recorder 100 can be described as attribute information, and is well known to those skilled in the art.
- the conversion of the stream format of the item (1) is mainly performed by the encoder 138.
- the conversion referred to in this item includes the conversion from TS to PS described in the present embodiment. Also, the conversion from the DVD video standard PS to the DVD video recording standard PS for the same PS is included.
- These conversions are realized by making the encoder 138 correspond to the conversion process.
- the encoder 138 may be realized by a dedicated chip circuit, or the encoder 138 may be realized by executing a dedicated processing program in a general-purpose microcomputer.
- the conversion of the encoding format of item (2) is also performed mainly by the encoder 138.
- the conversion referred to in this section includes stream conversion between the MPEG-2 standard and the MPEG-4 standard, stream conversion between the Windows (R) Media Video 9 standard and the MPEG-4 standard, and MPEG-2 AVC standard Stream conversion and the like are included. In each case, conversion from one to the other is possible.
- the resolution / frame rate conversion of item (3) is mainly performed by the resolution conversion unit 130.
- the resolution conversion corresponding to this item includes the resolution conversion between the D1 standard and the QCIF standard, and the resolution conversion between VGA and QVGA, in addition to the conversion of the HD video power to the SD video described in the embodiment.
- the frame rate includes conversion from 30 frames / sec to 15 frames / sec.
- the conversion of the bit rate of item (4) is mainly performed by the encoder 138.
- the conversion referred to in this section includes conversion from 8 Mbit / s to 2 Mbit / s.
- the format conversion of the above items (1) to (4) can be performed alone or in combination.
- a combination example is also described.
- Another example of the combination is a process of converting an MPEG-2TS (HD video) recorded on the HDD 106 for television viewing into an MPEG-4 standard stream (SD video) for viewing on a mobile phone.
- MPEG-2TS capability Conversion to MPEG-4 standard stream is equivalent to item (2)
- resolution conversion to HD video is equivalent to item (3).
- the MPEG-4 standard stream generated by the above-described conversion process is sent to, for example, the memory card control unit 146 of the recorder 100, and is written by the memory card control unit 146 to the SD memory card 148 loaded in the recorder 100. .
- the SD memory card 148 is removed from the recorder 100 and loaded into a mobile phone.
- Video and audio can be viewed by decoding the MPEG-4 standard stream in the mobile phone.
- the processing of items (3) and (4) may be added in view of the data capacity. For example, it is practical to convert the frame rate from 30 frames Z seconds to 15 frames Z seconds.
- the screen of a mobile phone is smaller than that of a TV, it is practical to convert the bit rate from 8 Mbit Z seconds to about 768 kbit Z seconds.
- the video switch 134 and the audio switch 136 receive the digital video signal and the digital audio signal from the digital signal processing unit 110 and the analog signal processing unit 120, respectively.
- video switches 134 and The audio switch 136 may also receive those signals and output them to the encoder 138.
- the recorder 100 is further provided with an interface conforming to the DV standard and a processing unit (DV codec) capable of processing the stream of the DV standard, and the video switch 134 and the audio switch 136 are provided with the DV standard stream. May be configured to receive digital video signals and digital audio signals obtained by converting
- this data processing device can record both high-resolution video and standard-resolution video data streams directly on a recording medium, it temporarily stores the data, converts it to a specific format, and records it.
- the device does not need space for temporarily storing data, and the user can save time and effort required for re-conversion and re-recording.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/599,973 US7792417B2 (en) | 2004-04-20 | 2005-04-14 | Data processor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-123758 | 2004-04-20 | ||
JP2004123758 | 2004-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005104543A1 true WO2005104543A1 (ja) | 2005-11-03 |
Family
ID=35197365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/007251 WO2005104543A1 (ja) | 2004-04-20 | 2005-04-14 | データ処理装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7792417B2 (ja) |
CN (1) | CN1906936A (ja) |
WO (1) | WO2005104543A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008204557A (ja) * | 2007-02-21 | 2008-09-04 | Teac Corp | データ複製装置 |
JP2009027257A (ja) * | 2007-07-17 | 2009-02-05 | Hitachi Ltd | ビデオカメラ装置 |
JP2009043352A (ja) * | 2007-08-09 | 2009-02-26 | Hitachi Ltd | 記録再生装置及び記録再生装置の記録モード設定方法 |
JP2020184784A (ja) * | 2015-09-29 | 2020-11-12 | 日本放送協会 | 受信装置およびプログラム |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080031597A1 (en) * | 2004-07-12 | 2008-02-07 | Etsuto Nakatsu | Stream Recording/Reproducing Apparatus |
US8965183B1 (en) * | 2008-01-30 | 2015-02-24 | Dominic M. Kotab | Systems and methods for creating and storing reduced quality video data |
US20100208830A1 (en) * | 2008-12-18 | 2010-08-19 | Headplay (Barbados) Inc. | Video Decoder |
US20100228736A1 (en) * | 2009-02-20 | 2010-09-09 | All Media Guide, Llc | Recognizing a disc |
US20100228704A1 (en) * | 2009-02-20 | 2010-09-09 | All Media Guide, Llc | Recognizing a disc |
WO2012089491A1 (en) * | 2010-12-31 | 2012-07-05 | Arcelik Anonim Sirketi | A personal video recorder |
US20120275502A1 (en) * | 2011-04-26 | 2012-11-01 | Fang-Yi Hsieh | Apparatus for dynamically adjusting video decoding complexity, and associated method |
US9392214B2 (en) * | 2013-02-06 | 2016-07-12 | Gyrus Acmi, Inc. | High definition video recorder/player |
JP2014204324A (ja) * | 2013-04-05 | 2014-10-27 | ソニー株式会社 | 記録装置、記録方法および再生装置 |
JP6701776B2 (ja) * | 2016-02-15 | 2020-05-27 | 船井電機株式会社 | 録画装置、録画方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000138896A (ja) * | 1998-10-30 | 2000-05-16 | Hitachi Ltd | 画像音声記録装置 |
JP2002118825A (ja) * | 2000-10-10 | 2002-04-19 | Sharp Corp | データ記録再生装置 |
JP2002330401A (ja) * | 2001-04-27 | 2002-11-15 | Hitachi Ltd | ディスク記録再生装置 |
JP2003111020A (ja) * | 2001-09-27 | 2003-04-11 | Hitachi Ltd | ディスク記録再生装置及びディスクメディア |
JP2003111023A (ja) * | 2001-09-28 | 2003-04-11 | Matsushita Electric Ind Co Ltd | データ記録装置、データ記録方法、プログラム、および媒体 |
JP2004064166A (ja) * | 2002-07-25 | 2004-02-26 | Hitachi Ltd | 映像記録装置および映像再生装置 |
JP2004159225A (ja) * | 2002-11-08 | 2004-06-03 | Sharp Corp | 映像・音声信号記録再生装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06153069A (ja) * | 1992-10-30 | 1994-05-31 | Sony Corp | 画像の変換装置、複製装置、再生装置、および表示装置 |
US5371551A (en) * | 1992-10-29 | 1994-12-06 | Logan; James | Time delayed digital video system using concurrent recording and playback |
JP2003101925A (ja) * | 2001-09-26 | 2003-04-04 | Alpine Electronics Inc | ディスク再生装置 |
-
2005
- 2005-04-14 CN CNA2005800016155A patent/CN1906936A/zh active Pending
- 2005-04-14 WO PCT/JP2005/007251 patent/WO2005104543A1/ja active Application Filing
- 2005-04-14 US US10/599,973 patent/US7792417B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000138896A (ja) * | 1998-10-30 | 2000-05-16 | Hitachi Ltd | 画像音声記録装置 |
JP2002118825A (ja) * | 2000-10-10 | 2002-04-19 | Sharp Corp | データ記録再生装置 |
JP2002330401A (ja) * | 2001-04-27 | 2002-11-15 | Hitachi Ltd | ディスク記録再生装置 |
JP2003111020A (ja) * | 2001-09-27 | 2003-04-11 | Hitachi Ltd | ディスク記録再生装置及びディスクメディア |
JP2003111023A (ja) * | 2001-09-28 | 2003-04-11 | Matsushita Electric Ind Co Ltd | データ記録装置、データ記録方法、プログラム、および媒体 |
JP2004064166A (ja) * | 2002-07-25 | 2004-02-26 | Hitachi Ltd | 映像記録装置および映像再生装置 |
JP2004159225A (ja) * | 2002-11-08 | 2004-06-03 | Sharp Corp | 映像・音声信号記録再生装置 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008204557A (ja) * | 2007-02-21 | 2008-09-04 | Teac Corp | データ複製装置 |
JP2009027257A (ja) * | 2007-07-17 | 2009-02-05 | Hitachi Ltd | ビデオカメラ装置 |
JP2009043352A (ja) * | 2007-08-09 | 2009-02-26 | Hitachi Ltd | 記録再生装置及び記録再生装置の記録モード設定方法 |
US8224149B2 (en) | 2007-08-09 | 2012-07-17 | Hitachi, Ltd. | Record/reproduction apparatus and record mode setting method for the same |
JP2020184784A (ja) * | 2015-09-29 | 2020-11-12 | 日本放送協会 | 受信装置およびプログラム |
Also Published As
Publication number | Publication date |
---|---|
CN1906936A (zh) | 2007-01-31 |
US20080008454A1 (en) | 2008-01-10 |
US7792417B2 (en) | 2010-09-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2005104543A1 (ja) | データ処理装置 | |
US8526797B2 (en) | Moving image coding method, moving image coding device, moving image recording method, recording medium, moving image playback method, moving image playback device, and moving image playback system | |
US20080069528A1 (en) | High-density recording medium having data format acceptable to a digital television and a data reproducing apparatus thereof | |
US20060257103A1 (en) | Digital video recording apparatus and method thereof | |
JPWO2006121049A1 (ja) | データ処理装置 | |
KR100747530B1 (ko) | Pvr 시스템 및 그 방송 재생 방법 | |
US7577337B2 (en) | Audio/video data recording/reproducing device and method, and audio/video data reproducing device and method | |
JP3911508B2 (ja) | 記録されたデータを再圧縮して書き直す映像記録/再生装置及びデータの再圧縮記録方法 | |
JP2007129368A (ja) | 情報記録装置およびその方法 | |
JP4289253B2 (ja) | 記録再生装置 | |
WO2005122568A1 (ja) | データ処理装置およびデータ処理方法 | |
US20060159425A1 (en) | Hybrid video device capable of copying part of original title and method for copying part of original title in the same | |
US20050201737A1 (en) | Optical recording and/or reproducing apparatus having codec/IEEE1394 link one-chip | |
US20060078276A1 (en) | Optical disk recording and reproducing apparatus | |
JP5444722B2 (ja) | ダビング装置 | |
KR100578246B1 (ko) | 디지털 인터페이스를 통한 오디오 데이터 전송방법 | |
KR100664489B1 (ko) | 비디 레코더 및 이를 이용한 동시 녹화재생 방법 | |
JP2011124825A (ja) | 記録装置 | |
JP2000197008A (ja) | デジタル映像再生装置及びデジタル映像記録再生装置 | |
JP2000295573A (ja) | デジタル放送記録再生装置 | |
JP2004320082A (ja) | 映像信号記録装置及び方法 | |
KR20100011419A (ko) | 복합 컨텐츠 재생 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200580001615.5 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 10599973 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
122 | Ep: pct application non-entry in european phase | ||
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWP | Wipo information: published in national office |
Ref document number: 10599973 Country of ref document: US |