Sony Corporation

Satoshi Miyazawa

Satoshi Takagi

Haruo Togashi

Takuya Kitamura

Takao Suzuki

Yoshihiro Murakami

Masao Sasaki

Masaaki Isozaki

Hiromi Yoshinari

Toshiaki Setogawa

Tsuyoshi Oda

Toshihiko Kitazawa

Atsuo Yada

Motofumi Itawaki

Nobuhisa Obikane

Shinji Minamihama

An information processing apparatus and method, a recording medium, and a program for removing jitter and reducing the delay of the information processing system. A substantial error is produced between accumulated value of intervals of reception time of the packets and accumulated value of time stamps of these packets. For each number of transport stream packets on which this substantial error provides one clock, a time equivalent to one clock is added to the subsequent time stamps of the transport stream packets or this time is subtracted therefrom to adjust time stamp, thereby correcting the deviation in time from reception time of the transport stream packets.

Information processing device and method, recording medium, and program

When macro blocks each of which has a variable length are input for one picture, null syncs each of which has a unit length are generated corresponding to the format of the video data to be handled. Corresponding to the length information, an overflow portion of a macro block is detected. The overflow portion is successively packed to macro blocks each of which is smaller than the unit length. Thus, each macro block is packed in the unit length. Since the length information of each null sync represents 0, the overflow portions are packed after the length information of each null sync. With null syncs, one format of video data can be matched with another format. In addition, with null syncs, overflow portions are packed. Thus, the record medium can be effectively used.

Processing digital data having variable packet lengths

With respect to change of a bit rate at the time of transmitting encoded data TS, a system delay is fixed and the output size of data frame_bit [j] every predetermined data unit is successively calculated, thereby making it possible to continuously obtain data from the bufferof a decoding side without breaks irrespective of change of the bit rate.

Encoded data outputting apparatus and method

Disclosed are a statistical multiplex system, a statistical multiplex controller and a method of statistical multiplex, which can assign bit rates to program data and auxiliary data efficiently, and also improve image quality. A statistical multiplex system is provided with: a plurality of image encoders for encoding a plurality of program data; an information encoder for encoding the auxiliary data; a multiplexing apparatus for multiplexing output thereof, and a statistical multiplex controller for controlling each of the image encoders and the information encoder. The statistical multiplex controller is made to set the bit rate to be assigned to the information encoder first, and to assign the remaining bit rates to each of the image encoders.

Statistical multiplex system, statistical multiplex controller and method of statistical multiplex

Coded data output device and method

VIDEO DATA RECORDING APPARATUS, VIDEO DATA RECORDING METHOD, VIDEO DATA REPRODUCING APPARATUS, VIDEO DATA REPRODUCING METHOD, VIDEO DATA RECORDING AND REPRODUCING APPARATUS, AND VIDEO DATA RECORDING AND REPRODUCTION METHOD

A shuffling table memory has a shuffling table written from an external memory through a path. The external memory stores a plurality of shuffling tables corresponding to the formats of video data to be shuffled. One shuffling table selected according to the result of format determination is stored in the shuffling table memory. The shuffling table memory receives an IDi separated from the input data as an address and outputs a converted address IDo. The address IDo generated by the shuffling table memory is used as a write address for writing data into a data-accumulation memory. With the read address sequentially changing, shuffled data is read from the data accumulation memory.

Data processing apparatus and data recording apparatus

Each of the data amount of a video stream multiplexed in one video frame period and the data amount of an audio stream multiplexed in a predetermined period is almost constant in any video frame period. The data amount of a transport stream generated in one video frame period is almost constant in any video frame period. In addition, corresponding to a target video encoding rate and a target audio encoding rate, schedule data for multiplexing a video stream and an audio stream is generated. Corresponding to the schedule data, a video stream and an audio stream are multiplexed and output as a transport stream to a decoding unit so that an SDT buffer of the decoding unit does not overflow.

Transport stream generating device and method, and program transmission device

A data multiplexer and a method thereof for multiplexing audio data, video data and additional data for digital television broadcasting. Size information for such data may be obtained and supplied by way of a CPU bus to a CPU which utilizes such size information in controlling a multiplexing operation. The audio, video and additional data may be multiplexed under the control of the CPU without being supplied to the CPU. As a result, high speed multiplexing may be performed.

Data multiplexing apparatus and method thereof

An apparatus, system, and method for compressing and coding audio and/or video data by the MPEG2 system or the like, multiplexing the same, and transmitting the resultant data via a digital line. When generating a transport stream for transmitting a PES packet of the MPEG2 system, the amounts of the compressed video data and the compressed audio data are defined as whole multiples of the amount of the transport packet (188 bytes) of the MPEG2 system, thereby to bring the boundary of the frame cycle of the audio and/or video data and the boundary of the transport packet into coincidence. Where the amount of data is arbitrary, calculation etc. of the offset value which becomes necessary at the scheduling is made unnecessary.

Audio and video data transmitting apparatus, system, and method thereof

The coded image information is divided into first and second groups in the same frame, and decoding information is added to the divided coded image information of the first and second groups. The first group of divided coded image information with the decoding information added in the recording unit is recorded in a first recording area of a recording medium, and the second group of divided coded image information with the decoding information added in the recording unit is recorded in a second recording area of the recording medium. It is determined whether a start-of-record frame or end-of-record frame of coded image information to be recorded agrees with an intermediate frame in the recording unit of coded image information recorded on the recording medium, in an editing recording mode in which the coded image information is recorded in superposed relation to the areas of the recording medium in which the first group of divided coded image information and the second group of divided coded image information are recorded.

Image information recording method and apparatus, image information

At least one frame of image information of each recording unit composed of a plurality of frames is intraframe-coded, and remaining frames of image information are intraframe-coded to output coded image information. The coded image information is divided into first and second groups in the same frame, and decoding information is added to the divided coded image information of the first and second groups. The first group of divided coded image information with the decoding information added in the recording unit is recorded in a first recording area of a recording medium, and the second group of divided coded image information with the decoding information added in the recording unit is recorded in a second recording area of the recording medium. It is determined whether a start-of-record frame or end-of-record frame of coded image information to be recorded agrees with an intermediate frame in the recording unit of coded image information recorded on the recording medium, in an editing recording mode in which the coded image information is recorded in superposed relation to the areas of the recording medium in which the first group of divided coded image information and the second group of divided coded image information are recorded.

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Kanagawa, Japan

Satoshi Miyazawa