Matsushita Electric Industrial Co., Ltd.

Takami Uemura

Kunio Ninomiya

Taisuke Tsurui

Yoichi Hida

Hiroyuki Satoh

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

A carrier wave NTSC component or a VSB pilot signal in an IF signal is extracted and judged. Then, on the basis of the judgment result, either of demodulation circuitandwhich is appropriate for the received broadcast wave is switched. Information of co-broadcasting programs for analog and digital broadcasts are acquired from EPG and memorized. In case of high-speed channel search, analog broadcast is preferentially switched to. In case of co-broadcasting, the analog broadcast program is displayed on the screen at the beginning, and then, the digital broadcast program is switched when the data decoding is completed. Therefore, it is possible to provide a receiver for receiving digital and analog broadcasts, which can perform switching automatically to a demodulation circuit appropriate for the channel selected modulated wave, and which can also seamlessly switch the channels between analog and digital broadcasts, thereby screen display can be switched smoothly at switching from analog broadcast to digital broadcast.

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Niihama, Japan

Takami Uemura