Matsushita Electric Industrial Co., Ltd.

Taisuke Tsurui

Yoichi Hida

Isao Yamamoto

Takami Uemura

Toshihisa Ohiro

Provided is a video/audio playback apparatus and a video/audio playback method in which on receiving an instruction for switching video operation from the video operation switching circuit, a data reading circuit reads a video/audio stream for playing an audio and a video/audio stream for playing a video from a recording medium, and an audio playback circuit reproduces an audio stream separated from the video/audio stream for playing the audio on the basis of time management information embedded in the audio stream and a predetermined reference time, and a video playback circuit reproduces a video stream separated from the video/audio stream for playing the video on the basis of a reference time different from the reference time, and thereby the video can freely played with the audio being normally played.

Video/audio playback apparatus and video/audio playback method

Information about the address of file information in a storage device and file information containing an updated version of the file information is recorded in different areas in the storage device before the file is updated, determination is made as to whether or not the information can be read successfully from the storage device (stepsand), and based on the determination, determination is made as to whether or not data recovery should be performed and, if data recovery should be performed (stepsand), data successfully read from the storage device is used to record the data in a sector indicated by the address information (step).

Data recovery method and data recording apparatus

An apparatus for recording/reproducing image data according to MPEG2 system is provided which obtains I picture data reliably and performs trick playback smoothly. In the apparatus, a PES packet including an I picture is detected from video coded data which is recorded on a recording medium by an I picture detection unit , an index file of the number of bytes from the start of recording or packet length and the like is created for the PES packet including the I picture data by a index file creation block , and the index file is recorded on an A/V-HDD ( ). In the trick playback process, a navigation control block obtains the index file, and then obtains the I picture data from the PES packet on the basis of the index file, thereby to perform the trick playback smoothly.

Growing community of inventors

Niihama, Japan

Taisuke Tsurui