Abstract: A left-eye image signal and a right-eye image signal are supplied to a pixel structure converter of a stereoscopic image pre-processor, and multiplexed, so to form one image, an interlace image is formed by a frame/field converter, encoded in an MPEG format by an MPEG encoding unit, stored into a storage and transmitted outward by a transmitting/recording unit. The encoded stereoscopic image signal received from the outward and reproduced from the storage is decoded by am MPEG decoding unit after going through a receiving/reproducing unit, the interlace image is reproduced, returned to the frame image by a field/frame converter of a stereoscopic image post-processor, and reproduced as the left-eye image signal and the right-eye image signal and output by the pixel structure converter.

Abstract: A left-eye image signal and a right-eye image signal are supplied to a pixel structure converter of a stereoscopic image pre-processor, and multiplexed, so to form one image, an interlace image is formed by a frame/field converter, encoded in an MPEG format by an MPEG encoding unit, stored into a storage and transmitted outward by a transmitting/recording unit. The encoded stereoscopic image signal received from the outward and reproduced from the storage is decoded by am MPEG decoding unit after going through a receiving/reproducing unit, the interlace image is reproduced, returned to the frame image by a field/frame converter of a stereoscopic image post-processor, and reproduced as the left-eye image signal and the right-eye image signal and output by the pixel structure converter.

Abstract: To attain a state in which data broadcast and broadcast related information can be easily recorded in a recording device and at the same time all or a part of the recorded data can be cut out for reuse. A first file 501 includes management data 505 for managing broadcast or the like. A separate file 502 includes time map data 506. A second file 503 includes normal broadcast 507, program linked data broadcast 508, independent data broadcast 509, and independent audio broadcast 510. The extraction data copied or cut from the second file is recorded in a third file 504 as MPEG video data 511, MPEG audio data 512, JPEG data 513, PNG data 514, MNG data 515, or BML data 516 in accordance with a type of the data. Editing, deletion, processing, and particular reproduction can be performed on the extraction data recorded in the third file by referring to the management data 505.

Abstract: A first file 401 includes management data 404. The data 404 describes management information units related to a plurality of transport streams 406 and 407 constituting a second file 403. A third file 402 includes only time map data 405 indicating the relationship between time and recording position of the transport stream 406 and does not include time map data related to the other transport stream 407. In this arrangement, multistream data, multichannel data, or full TS data is recorded as the transport stream 407. Accordingly, multistream recording or multichannel recording, and full TS recording can be easily realized in a video recorder for, e.g. a DVD.

Abstract: Along with a first file (501) for recording management data (506), a second file (503) for recording ordinary digital broadcast (508), ordinary broadcast with program-link-type data broadcast (509), independent-type data broadcast (510), audio broadcast (511) and so on, there are provided a third file (504) for recording analog broadcast video/audio data, and a subsidiary file for recording various data. The subsidiary file is able to record data for various usages, including MPEG video data (513), MPEG audio data (514), JPEG data (515), PNG data (516), MNG data (517), BML data (518), game data (519), electronic program guide data (520), and so on. According to this configuration, various information such as digital broadcast without data broadcast, ordinary broadcast with program-link-type data broadcast, independent-type data broadcast, audio broadcast, text broadcast, analog broadcast, and broadcast-related Internet information can be easily recorded on a video recorder such as DVD.

Abstract: In a data recording and reproducing method, data blocks are recorded in a storage unit. Priority levels each for one of the data blocks are set and stored. It is determined whether or not a vacant area of the storage unit is expected to be short. When the vacant area of the storage unit is expected to be short. The data blocks recorded in the storage unit are recompressed in accordance with the stored priority levels.

Abstract: Data transmission/reception apparatus according to the present invention MPEG-2 based transmits/receives input data including; at least MPEG-2 based video data and audio data in a low bit rate and in a low error occurrence rate. The data transmission apparatus is comprised of: a division circuit (30) which separates the input data into video, audio, and user data; FIFO circuits (31 to 33); a combination circuit (35); a PES private data attachment circuit 36; a PTS generation/attachment circuit (37); a PES header attachment circuit (39); and a transport header attachment circuit (40). On the other hand, the data reception apparatus is comprised of: a transport header separation circuit (51); a PES header separation circuit (52); a PTS detection circuit (53); a PES private data separation circuit, a distribution circuit (55); FIFO circuits (56 to 58); a FIFO control circuit; and a combination circuit (60).

Abstract: As a video stream is applied, a plurality of format information generator units generate information related to time or recording position defined by respective formats different from one another. Next, a formatter unit adds the information related to time or recording position generated by each of the plurality of format information generator units to the incoming video stream to format the video stream. Subsequently, a recorder records the information related to time or recording position added to the video stream by the formatter unit on a recording medium together with the video stream.

Abstract: A left-eye image signal and a right-eye image signal are supplied to a pixel structure converter of a stereoscopic image pre-processor, and multiplexed, so to form one image, an interlace image is formed by a frame/field converter, encoded in an MPEG format by an MPEG encoding unit, stored into a storage and transmitted outward by a transmitting/recording unit. The encoded stereoscopic image signal received from the outward and reproduced from the storage is decoded by am MPEG decoding unit after going through a receiving/reproducing unit, the interlace image is reproduced, returned to the frame image by a field/frame converter of a stereoscopic image post-processor, and reproduced as the left-eye image signal and the right-eye image signal and output by the pixel structure converter.

Abstract: In a data recording and reproducing method, data blocks are recorded in a storage unit. Priority levels each for one of the data blocks are set and stored. It is determined whether or not a vacant area of the storage unit is expected to be short. When the vacant area of the storage unit is expected to be short. The data blocks recorded in the storage unit are recompressed in accordance with the stored priority levels.

Abstract: A method of recording image data includes the steps of (a) recording image audio stream data as one stream data file, (b) recording navigation data as one navigation data file, (c) recording private data as one or more private data file(s), and (d) recording at least one of (d1) table data included in a stream and (d2) descriptor(s) included in the table data, into a first or second area in the private data file, the stream data file or the navigation data file, wherein the first area is defined as an area into which character data is to be recorded, and the second area is defined as an area into which private data is to be recorded.

Abstract: A video/audio data coding circuit receives video/audio signals and compresses and multiplexes them. A recording signal processing circuit shuffles the audio/video data, adds ECCs, and codes them for recording. A CPU control circuit controls a control ECC block addition circuit to generate control ECC blocks and sends them to the recording signal processing circuit. At the same time, the CPU control circuit controls an optical head and a spindle motor. The data is written onto a disc by the optical head. And, after editing, the control ECC blocks are written. At playback time, the control ECC blocks are read from the disc and sent to a control ECC block playback circuit where they are played back. The CPU control circuit controls the optical head, spindle motor, and so on with the played-back control ECC blocks and commands. Video/audio data is read from the disc by the optical head. A played-back signal processing circuit decodes the data, checks for errors, and de-shuffles the data.

Abstract: A method for encoding data bits into channel bits used for recording digital data onto a recording medium or for transmitting digital data via a transmission system. Channel bits “00X”, “010” and “10X” are allotted to 3 patterns of data bits among 4 patterns of data bits having 2 bits, where X designates an indefinite bit which becomes “1” when the channel bit succeeding the indefinite bit is “0” and becomes “0” when the channel bit succeeding the indefinite bit is “1”. Channel bits “000010”, “00000X”, “100010” and “10000X” are allotted to 4 patterns of data bits having 4 bits which are a combination of two bits having a remaining one pattern among the 4 patterns of the data bits having 2 bits and additional two bits.

Abstract: The PR(1, 1) equalizer 1 receives signals which are provided from a playback head which detects data in which the number of continuous non-inverse bits is at least “2”. The PR(1, 1) equalizer 1 then converts the signals into seven levels of data and ten levels of data, provides them to the four states of Viterbi decoder 2. In Viterbi decoding, an weight is applied to a metric which is obtained from the seven levels of data or the ten levels of data.

Abstract: A code converter of the present invention converts m data bits to n channel bits (m<n) and records the n channel bits in a recording medium. The code converter includes a basic table made up of a plurality of tables smaller in number than 2m defined on the basis of a bit pattern required of the codes. A converting circuit codes all data of the m data bits to the n channel bits by calculation using the basic table. The code converter is operable with a minimum number of tables and therefore with a minimum of circuit scale.

Abstract: The present invention provides a method of implementing at least one of recording and transmitting digital data, under conditions that a total code length including data and error correcting codes corresponds to not less than 256 symbols, and each of the symbols comprises n-bits, where n is larger than 8.

Abstract: A signal subjected to compression coding and multiplexing by a video/audio coding circuit is subjected to signal processing such as shuffling by a recording signal processing circuit. A control ECC block generated by a control ECC block attaching circuit is multiplexed with video/audio data to be recorded on a disk. Data played back from the disk is subjected to processing such as deshuffling by a play-back signal processing circuit. The control ECC block is played back by a control ECC block playing-back circuit. Video/audio data is decoded by a video/audio decoding circuit to be output.

Abstract: A data decoding recording apparatus is disclosed which facilitates, when contents of a received digital broadcast are recorded in accordance with a copy control code, editing and preservation of the recorded contents. A digital broadcasting radio wave is subject to demodulation, Viterbi decoding and error correction processing with the Reed-Solomon code by a tuner section and is outputted as a transport stream. A general control section receives the transport stream, extracts a copy control code from the received transport stream and analyzes the copy control code. When the copy control code is “00”, the general control section controls a hard disk drive to record the contents through a digital interface section.

Abstract: An optical disk for writing data transmitted from a higher rank device is rotated at a constant rate (S1). When the rotational speed of the optical disk reaches a constant rate, data is written or read (S5). At that time, since the data write rate in the innermost circumference side is different from that in the outermost circumference side, whether or not an initial buffer is necessary is judged. When the initial buffer is necessary, data in a capacity corresponding to the data writing/reading rate in the storing region is stored in the buffer (S3). A clock is varied and produced according to the storing region (clock block) into which data is written or from which data is read (S4). Subsequently, data is written or read based on the clock. In the writing or reading, data to be written or read is temporarily stored in a buffer depending upon whether the storing region is on the inner circumference side or outer circumference side of the disk (S5).

Abstract: The four tables P, Q, R and S contained in an ROM 2 for 16-24 modulation have a total number of data in which the continuing bits are 2 bits, that is not larger than i bits among the 24 bits, so that the number of continuing bits having the same code is from 2 to 8 bits, so as to have the same characteristics as the (1, 7) code, and to stably lock the PLL. A comparator/selector circuit 5 selects an optimum table out of the tables P, Q, R and S.