Sony Corporation

Matsushita Electric Industrial Co., Ltd.

Nissan Chemical Industries Limited

Ishihara Sangyo Kaisha, Ltd.

Kiyoshi Ota

Toshiyuki Ishii

Tetsuo Nishigaki

Hajime Nitta

Kousuke Misono

Seiichi Misawa

Joji Fukuda

Kazuo Arai

Masashi Ohta

Toshimichi Hamada

Kae Nagano

Daisuke Hiranaka

Nobuyuki Aoki

Kousuki Misono

Miwako Tsuneki

Jin Sato

Isao Yokomichi

Yutaka Soda

Yasuo Yuyama

Koji Obata

Munekatsu Fukuyama

Noriaki Oishi

Tomoyuki Sato

Kenji Yazawa

Shiki Inoue

Shinsaku Hirano

Koji Wakiyama

Akio Ishikawa

Kazuhiro Kimura

Toshimasa Mizunashi

Kouji Wakiyama

Akio Mohri

Takeo Yamada

Minoru Ikeda

FIG.B shows buffer occupancy rate of a transport stream bufferwhen a TS packet is transferred to the transport stream bufferhaving a transport rate Rt and a leak rate Rx. A time Tduring which the buffer occupancy rate of the transport stream bufferincreases and a time Tduring which the buffer occupancy rate of the transport stream bufferdecreases are expressed by (Rt&#x2212;Rx)&#xd7;T=Rx&#xd7;Tand T=(188&#xd7;8)/Rt. A time T is T=T+T=(188&#xd7;8)/Rx. Therefore, the time T is equal to a time T' shown in FIG.C. Thus, when a TS packet is transferred in a cycle of the time T&#x2032;, the transport stream bufferwill not overflow and the transport stream bufferbecomes empty at least once a second, whereby simulation for the transport stream bufferis not required in the simulation for the T-STD model.

Data multiplexer, data multiplexing method, and recording medium

The hard disc is provided with two areas for storing file system management information and content management information. The disc recorder records double file system management information and content management information onto the hard disc. Further, information indicating a procedure for updating file system management information is described in a flash descriptor, and a procedure for updating content management information is described in a robust descriptor.

Apparatus and method for recording/reproducing data, which enable reading of data recorded even when the apparatus stops due to a power failure

A recording/reproducing device has an NTSC decoder which receives a video signal and outputs a video signal, an MPEG audio encoder which receives an audio signal and outputs an audio signal, and a synchronous control circuit which detects a synchronizing signal from the video signal input to the NTSC decoder and uses that signal to generate an output synchronizing signal that is different from the input synchronizing signal. The output synchronizing signal is used to output the video signal from the NTSC decoder. In the recording/reproducing device, the NTSC decoder and the MPEG audio encoder provide a delay to the input video signal and audio signal, respectively, and output the video signal and audio signal in accordance with the output synchronizing signal generated by the synchronous control circuit.

Data processing device and data recording method

A system for recording an input video signal input to an A/D conversion processing section on a recording medium in accordance with a recording clock generated by a recording system synchronous control section, and for outputting the video signal recorded on the recording medium to outside in accordance with a reproducing system synchronous control section. When switching and outputting a recording video signal input to the A/D conversion processing section and a reproduction video signal recorded on the recording medium and then decoded and output by an MPEG AV decoder, the recording video signal is temporarily stored in a frame synchronizer, and the recording video signal stored in the frame synchronizer and the reproduction video signal decoded by the MPEG AV decoder are switched and output in accordance with a reproduction clock generated by the reproducing system synchronous control section.

Data recording/reproducing device

Audio visual unit

Speaker box

Combined disc player and radio receiver

Disc player

Disc recorder

In a recording and reproducing apparatus having at least one program recorded to recording tracks on a recording medium, management database is recorded on the recording tracks with the program so as to form a management database recording field. The management data is reproduced on being loaded the recording medium to the recording and reproducing apparatus to manage each program recorded on the recording tracks. In the case of video tape recorder, the management data is recorded on video recording tracks, audio recording tracks and/or a control signal recording tracks. therefore, to cover in the appended claims all such changes and modifications as fall within the true spirit and scope of the invention.

Video tape recorder having control head upstream of erase head

In a recording and reproducing apparatus having at least one program recorded in recording tracks on a recording medium, a management database is recorded on the recording tracks with the program so as to form a management database recording field. The management data is reproduced when the recording medium is loaded in the recording and reproducing apparatus to manage each program recorded on the recording tracks. In the case of a video tape recorder, the management data is recorded on video recording tracks, audio recording tracks and/or control signal recording tracks.

AV data base for VTR

Television receiver

Growing community of inventors

Tokyo, Japan

Kiyoshi Ota