发明授权
US06078721A Video storage type communication device for selectively providing coded
frames for selectable reproduction speed and mode according to type of
a terminal device
失效
视频存储型通信设备,用于根据终端设备的类型选择性地提供可选择的再现速度和模式的编码帧
- 专利标题: Video storage type communication device for selectively providing coded frames for selectable reproduction speed and mode according to type of a terminal device
- 专利标题(中): 视频存储型通信设备,用于根据终端设备的类型选择性地提供可选择的再现速度和模式的编码帧
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申请号: US942291申请日: 1997-10-01
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公开(公告)号: US06078721A公开(公告)日: 2000-06-20
- 发明人: Tadashi Uchimi , Keiichi Hibi , Jiro Nakabayashi , Tsuneaki Iwano , Nobuyuki Ema , Hirotaka Nakano , Osamu Hakamura , Youji Kanada , Tsuneko Kura , Takashi Oshima
- 申请人: Tadashi Uchimi , Keiichi Hibi , Jiro Nakabayashi , Tsuneaki Iwano , Nobuyuki Ema , Hirotaka Nakano , Osamu Hakamura , Youji Kanada , Tsuneko Kura , Takashi Oshima
- 申请人地址: JPX Tokyo JPX Tokyo
- 专利权人: Sharp K.K.,Nippon Telegraph & Telephon Corporation
- 当前专利权人: Sharp K.K.,Nippon Telegraph & Telephon Corporation
- 当前专利权人地址: JPX Tokyo JPX Tokyo
- 优先权: JPX6-178690 19940729; JPX7-082569 19950407; JPX7-082609 19950407
- 主分类号: H04N5/783
- IPC分类号: H04N5/783 ; H04N7/26 ; H04N7/30 ; H04N7/46 ; H04N7/50 ; H04N9/804 ; H04N9/82
摘要:
A device which is capable of storing moving picture data received from each terminal and providing each terminal with video information to be reproducible by rapidly forwarding or reversing at any desired speed independent of usable terminals. A video storage type communication device 30 with a receiving portion 35 and a transmitting portion 38 transmits and receives video data over a communication network 10 to and from each terminal l-n. A coded video data received from terminals l-n is stored as it is in a first storage portion 32 and, at the same time, the data converted into specially reproducible video information is stored in the second storage portion 33. At the time of reproducing, the reproduction control portion 35 controls the reproduction selector switch 36 to obtain the video data from the first storage portion 32 or the second storage portion 33, changing the reproduction mode from ordinary to the rapid forwarding/reversing and vice versa. The specially reproducible video generating portion 34 successively restores coded video data received through the receiving portion 31, encodes again the restored data by intraframe, interframe or still-picture coding method to generate video information to be reproducible in special mode such as reproduction by rapid forwarding or reversing.
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