Invention Grant
- Patent Title: Recording and reproducing apparatus, sending apparatus and transmission system
- Patent Title (中): 记录和再现装置,发送装置和传输系统
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Application No.: US11739273Application Date: 2007-04-24
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Publication No.: US08243806B2Publication Date: 2012-08-14
- Inventor: Koichi Hamada , Muneaki Yamaguchi , Masahiro Kageyama
- Applicant: Koichi Hamada , Muneaki Yamaguchi , Masahiro Kageyama
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2006-18688 20060424
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N11/02

Abstract:
A video signal recording and reproducing apparatus is provided that is capable of reducing the encoding amount required for video recording thereby to record a longer video signal while suppressing deterioration of image quality when the video is displayed. An apparatus is also provided that is similarly capable of efficiently transmitting the video signal with a smaller transmission capacity during transmission of the video signal. A structure constituting the present invention comprises: a decoding unit which decodes an inputted video signal into video frames; a decimation unit which decimates the number of video frames decoded by the decimation unit; an encoding unit which encodes the video frames decimated by the decimation unit into encoded video signals; and a storage device which stores the video signals encoded by the encoding unit, wherein the decimation unit performs decimation for each video signal.
Public/Granted literature
- US20070248331A1 Recording and Reproducing Apparatus, Sending Apparatus and Transmission System Public/Granted day:2007-10-25
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