Sony Corporation

Takaaki Murata

Mikio Kita

Kenji Ohtsuka

Kazuo Ido

Ichiro Ogata

Hiroshi Matsuzawa

Ichiro Aki

Kohei Nakajo

Takayuki Ohishi

An original coded stream reproduced from a magnetic tape is decoded by an MPEG decoder, and original video data of a base band is thus generated. A switching circuit generates edited video data by switching the original video data and supplied insertion video data on the base band level at IN-point and OUT-point. The MPEG encoder generates an edited coded stream by coding the edited video data supplied from the switching circuit. A system controller controls a recording circuit to record a picture changed by editing processing, from among the edited coded stream, onto the magnetic tape.

Data recording device, data recording method, data editing device, and data editing method

An original coded stream reproduced from a magnetic tape is decoded by an MPEG decoder and original video data of a base band is thus generated. A switching circuit generates edited video data by switching the original video data and supplied insertion video data on the base band level at IN-point and OUT-point. The MPEG encoder generates an edited coded stream by coding the edited video data supplied from the switching circuit A system controller controls a recording circuit to record only a picture changed by editing processing, from among the edited coded stream, onto the magnetic tape.

Data recording apparatus and data recording method, and data editing apparatus and data editing method

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Tokyo, Japan

Takaaki Murata