Sony Corporation

Kosuke Yoshimura

Hitoshi Nakamura

Shinichi Suenaga

Naoki Okamoto

Ryo Ito

Satoru Maeda

Munehiro Yoshikawa

Akihiko Tao

Kazunori Yasuda

Yasushi Noguchi

Mari Sugiura

Shyunsuke Takano

Kazuo Motoki

Susumu Orikasa

An audio signal and a video signal are recorded onto a hard disk. In the hard disk, by time-divisionally processing the recording and reproduction, they are executed in parallel. Audio data as much as four fields and corresponding video data as much as one field are constructed as one set and are time-sequentially recorded. In a one-time speed reproduction, the data is reproduced every set. The video data is repetitively reproduced for a period of time of four fields. In a double-speed reproduction, the video data is reproduced every other data and the audio data as much as four fields corresponding to the video data which is reproduced and the audio data as much as subsequent four fields are reproduced. To reproduce the audio data as much as eight fields for a period of time of four fields, the speed of the audio data is converted to a double speed and the audio data is continuously reproduced.

Video and audio signal recording and reproducing device and method

A recording/reproducing apparatus by which optimum playback pictures can be produced eve in case of parallel recording/reproduction. A storage unit transiently stores video signals obtained from an overwrite type disc-shaped recording medium . A signal processing unit decodes video signals stored in the storage unit . A holding unit holds video signals decoded by the signal decoding unit . A control unit performs control of the entire apparatus and also performs control for address management and data transfer of the disc-shaped recording medium so that, if the apparatus is set to a mode of performing a playback operation while the recording operation is going on, the storage means stores plural fields of the video signals and the holding unit interpolates the video signals.

Recording/reproducing apparatus

A device for use in a television receiver for constantly recording a received program onto a recording medium such as a hard disk drive where a desired scene or program can be easily searched from recorded picture planes without an increase in circuit scale and costs. A picture plane area of a display is divided into a plurality of small picture plane areas and picture planes divided every predetermined time are displayed as index images in correspondence to the plurality of divided small picture plane areas respectively. When a desired one of the index images is designated, moving image information corresponding to the designated index image is read out from the hard disk drive and is displayed. An offset time of a predetermined amount is given to the index images which were divisionally displayed. The received video signal is compressed so that one field is set to a fixed length and is recorded onto the hard disk. A long time recording mode for the hard disk drive is set by varying a compression ratio or a subsampling interval for the video signal. Status information including information reflecting the long time recording mode is added to the compressed video signal and the resultant video signal is recorded on a block unit basis.

Apparatus and method for recording, reproducing and displaying a video signal received by a signal receiver

A received television broadcasting signal is always recorded to a hard disk. In the hard disk, by time-divisionally processing the recording and reproduction, they are executed in parallel. In the television broadcasting, when the user wants to see a video image which has already become a past image, a high speed reverse rotation reproduction is instructed by the user. The video image is switched from the video image by the television broadcasting to the reproduction video image reproduced from the hard disk. The user designates the reproducing position while seeing the video image reproduced by the reverse rotation. The forward rotation reproduction is started from the designated position. When a scene which the user wants to see is finished and the forward rotation reproduction is cancelled by the user, the video image is switched from the reproduction video image to the video image of the television broadcasting.

TV receiver having recording/reproducing functions and method of recording/reproducing TV signals

A method of processing original still picture data representing an original still image and stored in a video memory and storing processed still picture data representing a processed still image in a predetermined location of the video memory comprising the steps of setting an XY orthogonal coordinate system on the video memory, setting a reference line parallel to one of the X and Y axes of the orthogonal coordinate system and passing through a point of intersection of lines, each of which connects corresponding pixels of the original and processed still images, moving multiples the pixel data on a line of the original still image parallel to the reference line and furthest from the reference line to addresses of the video memory forming a line of the processed still image, and repeating the preceding step for pixel data on lines of the still image parallel to the reference line and second furthest from the reference line and succeeding lines, to thereby store the processed still picture data representing the processed still image in the video memory. An apparatus employing this method for processing original still picture data is also provided.

Still picture processing method and/or apparatus

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Kanagawa, Japan

Kosuke Yoshimura