Hitachi, Ltd.

Kazuto Shimagami

Atsuhiro Ono

The following configuration is preferable for providing a digital broadcast-enabled recording and reproducing device involving no lip-sync error and offering good usability. For example, the recording and reproducing device includes a receiver that receives digital broadcast data, a video/audio signal generator that generates a video signal and an audio signal included in the digital broadcast data received by the receiver, an image processing unit that executes image processing of the video signal input from the video/audio signal generator; and a delay unit that receives the audio signal generated by the video/audio signal generator to adjust time lag between the received audio signal and the video signal processed by the image processing unit.

Recording and reproducing device

A broadcast receiver includes a tuner section for receiving a broadcast program, an MPEG decoderfor converting a signal coming from the tuner section into a given format, and a hard disk drive (HDD) for recording the converted digital signal. In the broadcast receiver, a HDD medium of the HDD for recording the received broadcast program has, separately, a stream area for storing stream data as a video/audio signal, and a management data area for storing management data other than the stream data, and these areas are formatted by each different given unit. With such a structure, the broadcast receiver becomes highly-usable, requiring less time for the search operation on an HDD at the time of system startup. There is also a method for recording broadcast programs received by the broadcast receiver, and an information recorder for such use.

Broadcast program recording method and broadcast receiver, and information recorder for the same

A highly-operable receiver, which shortens search operations on an HDD upon startup, a recording method thereof, and an information recorder therefor are described. The broadcast receiver includes a tuner portion for receiving a broadcast program, an MPEG decoder for converting a signal from the tuner portion to a predetermined format, and a hard disk drive (HDD) for recording the converted digital signal. Whether power was turned off normally at last use is determined when the power supply is turned on. If the power supply was turned off normally at last use, a bitmap for the HDD recorded upon the last power shut-off is input; if not, new bitmap information is created. Thus, the writing/reading operations of the HDD are better managed.

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Mito, Japan

Kazuto Shimagami