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1. 发明专利

DE69424389D1 未知
公开(公告)号：DE69424389D1
公开(公告)日：2000-06-15
申请号：DE69424389
申请日：1994-12-27
申请人： HITACHI LTD
发明人： ASAI MITSUO , TAKIYASU YOSHIHIRO , SHIBATA KOICHI , SATO MIKIKO , SAITO ATSUSHI , HAYASHI TAKEHISA , IGAWA MASARU
IPC分类号： G06F13/00 , H04N5/765 , H04N5/781 , H04N5/783 , H04N5/85 , H04N5/926 , H04N5/93 , H04N7/10 , H04N7/173 , H04N21/231 , H04N21/2387
摘要： In a video storage and delivery apparatus (102-105) and a video storage and delivery system (Fig. 1), video data items are simultaneously supplied to a plurality of users (170, 172) while guaranteeing the time axis and the picture quality of the video data. The apparatus includes a frame address table (1408) which indicates a storage location in the apparatus of each frame of video data to start a special reproduction or a reproduction at a desired frame and a control unit (161) controlling a switch bus (140) connecting a plurality of video storage and delivery apparatuses to a plurality of channels so as to conduct data transfers via the switch bus between the apparatuses and between video reproduction devices of the users. From an optical disk data storage storing video data, a plurality of video data items are read in a timesharing fashion to be temporarily stored in a magnetic disk device or a semiconductor memory, thereby delivering the video data items therefrom to the users.

2. 发明专利

CA2216980A1 COMMUNICATION METHOD 未知
公开(公告)号：CA2216980A1
公开(公告)日：1998-04-04
申请号：CA2216980
申请日：1997-09-30
申请人： HITACHI LTD
发明人： OHNO RYUICHI , YAMASHITA HIROFUMI , TAKIYASU YOSHIHIRO , ASAI MITSUO
IPC分类号： H04L1/16 , H04L1/18 , H04L29/06 , H04L29/08 , H04L12/56
摘要： A method of increasing the network use efficiency of computer communication and reducing the limitation of byte stream in a transmit/receive request. A virtual circuit is established between protocol modules such as applications for providing the communication function between softwares to mate one transmit request with one receive request. By returning an acknowledgement in a unit of request, any vain acknowledgement can be avoided and even in the case of asynchronous transmission/reception, a request which is completed in transmission/reception can be ended immediately, thus permitting efficient data transfer. Even when the transmit request length and the receive request length differ from each other, reliable communication of a request having a smaller request length can be ensured between mating transmit and receive requests. Further, in the case of synchronous transmission/reception, by copying only the latter half of a transmission buffer and returning a virtual ACK to the transmitting side when reception of the former half ends, the acknowledgement need not be waited for, thus permitting efficient data transfer.

3. 发明专利

CA2253124A1 VIDEO SEARCHING METHOD AND APPARATUS, VIDEO INFORMATION PRODUCING METHOD, AND STORAGE MEDIUM FOR STORING PROCESSING PROGRAM THEREOF 未知
公开(公告)号：CA2253124A1
公开(公告)日：1999-05-10
申请号：CA2253124
申请日：1998-11-05
申请人： HITACHI LTD
发明人： ISHIDA TOMOYUKI , ONODERA TAKESHI , TAKIYASU YOSHIHIRO , ASAI MITSUO , MORITA KOICHI
IPC分类号： G06F3/14 , G06F3/048 , G06F17/30 , G11B27/00 , G11B27/034 , G11B27/10 , G11B27/28 , G11B27/34 , H04N5/76 , H04N5/78 , G11B23/00
摘要： A video searching method, and apparatus, having a function of representing a video file are provided such that the contents of video files stored in a storage device may be recognized definitely and rapidly. The video searching apparatus includes a computer, a storage device, a device for controlling them, and a display device. The apparatus includes a software resource for producing a group image formed of at least two still images of scenes representing the contents of each of video files stored in the storage device. In the apparatus, the size of the group image is changed at any time. In response to manipulation of the group image, file operation such as deletion, movement or name change of a corresponding video file is performed. A digest for displaying scene still images at predetermined intervals on the display device for each of the video files is produced when confirming the details of contents of a stored video file. A further digest is produced for each of the intervals of the digest of the video file, further produces a digest to conduct reproduction for searching from a scene still image selected on the digest of the video file.

4. 发明专利

DE69032680D1 未知
公开(公告)号：DE69032680D1
公开(公告)日：1998-11-05
申请号：DE69032680
申请日：1990-01-04
申请人： HITACHI LTD
发明人： MASUDA NOBORU , YASUNAGA MORITOSHI , YAMADA MINORU , MASAKI AKIRA , ASAI MITSUO , HIRAI YUZO , YAGYU MASAYOSHI , HAYASHI TAKEHISA , DOI TOSHIO , ISHIBASHI KENICHI
IPC分类号： G06N3/04 , G06N3/063 , G06F15/80

5. 发明专利

DE69836790T2 未知
公开(公告)号：DE69836790T2
公开(公告)日：2007-11-08
申请号：DE69836790
申请日：1998-11-04
申请人： HITACHI LTD
发明人： MORITA KOICHI , ASAI MITSUO , ISHIDA TOMOYUKI , ONODERA TAKESHI , TAKIYASU YOSHIHIRO
IPC分类号： G06F3/14 , G11B27/28 , G06F3/048 , G06F17/30 , G11B27/00 , G11B27/034 , G11B27/10 , G11B27/34 , H04N5/76 , H04N5/78
摘要： A video searching method, and apparatus (101), having a function of representing a video file are provided such that the contents of video files stored in a storage device may be recognized definitely and rapidly. The video searching apparatus includes a computer, a storage device (103), a device for controlling them, and a display device (100). The apparatus includes a software resource (108) for producing a group image formed of at least two still images of scenes representing the contents of each of video files stored in the storage device. In the apparatus, the size of the group image is changed at any time. In response to manipulation of the group image, file operation such as deletion, movement or name change of a corresponding video file is performed. A digest for displaying scene still images at predetermined intervals on the display device for each of the video files is produced when confirming the details of contents of a stored video file. A further digest is produced for each of the intervals of the digest of the video file, further produces a digest to conduct reproduction for searching from a scene still image selected on the digest of the video file.

6. 发明专利

DE69836790D1 未知
公开(公告)号：DE69836790D1
公开(公告)日：2007-02-15
申请号：DE69836790
申请日：1998-11-04
申请人： HITACHI LTD
发明人： MORITA KOICHI , ASAI MITSUO , ISHIDA TOMOYUKI , ONODERA TAKESHI , TAKIYASU YOSHIHIRO
IPC分类号： G06F3/14 , G11B27/28 , G06F3/048 , G06F17/30 , G11B27/00 , G11B27/034 , G11B27/10 , G11B27/34 , H04N5/76 , H04N5/78
摘要： A video searching method, and apparatus (101), having a function of representing a video file are provided such that the contents of video files stored in a storage device may be recognized definitely and rapidly. The video searching apparatus includes a computer, a storage device (103), a device for controlling them, and a display device (100). The apparatus includes a software resource (108) for producing a group image formed of at least two still images of scenes representing the contents of each of video files stored in the storage device. In the apparatus, the size of the group image is changed at any time. In response to manipulation of the group image, file operation such as deletion, movement or name change of a corresponding video file is performed. A digest for displaying scene still images at predetermined intervals on the display device for each of the video files is produced when confirming the details of contents of a stored video file. A further digest is produced for each of the intervals of the digest of the video file, further produces a digest to conduct reproduction for searching from a scene still image selected on the digest of the video file.

7. 发明专利

DE69424389T2 未知
公开(公告)号：DE69424389T2
公开(公告)日：2001-01-25
申请号：DE69424389
申请日：1994-12-27
申请人： HITACHI LTD
发明人： ASAI MITSUO , TAKIYASU YOSHIHIRO , SHIBATA KOICHI , SATO MIKIKO , SAITO ATSUSHI , HAYASHI TAKEHISA , IGAWA MASARU
IPC分类号： G06F13/00 , H04N5/765 , H04N5/781 , H04N5/783 , H04N5/85 , H04N5/926 , H04N5/93 , H04N7/10 , H04N7/173 , H04N21/231 , H04N21/2387
摘要： In a video storage and delivery apparatus (102-105) and a video storage and delivery system (Fig. 1), video data items are simultaneously supplied to a plurality of users (170, 172) while guaranteeing the time axis and the picture quality of the video data. The apparatus includes a frame address table (1408) which indicates a storage location in the apparatus of each frame of video data to start a special reproduction or a reproduction at a desired frame and a control unit (161) controlling a switch bus (140) connecting a plurality of video storage and delivery apparatuses to a plurality of channels so as to conduct data transfers via the switch bus between the apparatuses and between video reproduction devices of the users. From an optical disk data storage storing video data, a plurality of video data items are read in a timesharing fashion to be temporarily stored in a magnetic disk device or a semiconductor memory, thereby delivering the video data items therefrom to the users.

8. 发明专利

CA2216980C COMMUNICATION METHOD 未知
公开(公告)号：CA2216980C
公开(公告)日：2001-09-25
申请号：CA2216980
申请日：1997-09-30
申请人： HITACHI LTD
发明人： OHNO RYUICHI , YAMASHITA HIROFUMI , TAKIYASU YOSHIHIRO , ASAI MITSUO
IPC分类号： H04L1/16 , H04L1/18 , H04L29/06 , H04L29/08 , H04L12/56
摘要： A method of increasing the network use efficiency of computer communication and reducing the limitation of byte stream in a transmit/receive request. A virtual circuit is established between protocol modules such as applications for providing the communication function between softwares to mate one transmit request with one receive request. By returning an acknowledgement in a unit of request, any vain acknowledgement can be avoided and even in the case of asynchronous transmission/reception, a request which is completed in transmission/reception can be ended immediately, thus permitting efficient data transfer. Even when the transmit request length and the receive request length differ from each other, reliable communication of a request having a smaller request length can be ensured between mating transmit and receive requests. Further, in the case of synchronous transmission/reception, by copying only the latter half of a transmission buffer and returning a virtual ACK to the transmitting side when reception of the former half ends, the acknowledgement need not be waited for, thus permitting efficient data transfer.

9. 发明专利

CA2253124C VIDEO SEARCHING METHOD AND APPARATUS, VIDEO INFORMATION PRODUCING METHOD, AND STORAGE MEDIUM FOR STORING PROCESSING PROGRAM THEREOF 未知
公开(公告)号：CA2253124C
公开(公告)日：2001-04-24
申请号：CA2253124
申请日：1998-11-05
申请人： HITACHI LTD
发明人： MORITA KOICHI , ASAI MITSUO , ISHIDA TOMOYUKI , TAKIYASU YOSHIHIRO , ONODERA TAKESHI
IPC分类号： G06F3/14 , G06F3/048 , G06F17/30 , G11B27/00 , G11B27/034 , G11B27/10 , G11B27/28 , G11B27/34 , H04N5/76 , H04N5/78 , G11B23/00
摘要： A video searching method, and apparatus, having a function of representing a video file are provided such that the contents of video files stored in a storage device may be recognized definitely and rapidly. The video searching apparatus includes a computer, a storage device, a device for controlling them, and a display device. The apparatus includes a software resource for producing a group image formed of at least two still images of scenes representing the contents of each of video files stored in the storage device. In the apparatus, the size of the group image is changed at any time. In response to manipulation of the group image, file operation such as deletion, movement or name change of a corresponding video file is performed. A digest for displaying scene still images at predetermined intervals on the display device for each of the video files is produced when confirming the details of contents of a stored video file. A further digest is produced for each of the intervals of the digest of the video file, further produces a digest to conduct reproduction for searching from a scene still image selected on the digest of the video file.

10. 发明专利

GB2318036A Communication method with mated transmit and receive requests 未知
公开(公告)号：GB2318036A
公开(公告)日：1998-04-08
申请号：GB9720981
申请日：1997-10-02
申请人： HITACHI LTD
发明人： OHNO RYUICHI , ASAI MITSUO , YAMASHITA HIROFUMI , TAKIYASU YOSHIHIRO
IPC分类号： H04L1/16 , H04L1/18 , H04L29/06 , H04L29/08 , H04L12/08
摘要： A method of increasing the network use efficiency of computer communication and reducing the limitation of byte stream in a transmit/receive request. A virtual circuit is established between protocol modules such as applications 402, 462 for providing the communication function between softwares to mate one transmit request with one receive request. By returning an acknowledgement (ACK) in a unit of request, any vain acknowledgement can be avoided and even in the case of asynchronous transmission/reception, a request which is completed in transmission/reception can be ended immediately, thus permitting efficient data transfer. Even when the transmit request length and the receive request length differ from each other, reliable communication of a request having a smaller request length can be ensured between mating transmit and receive requests. Further, in the case of synchronous transmission/reception, by copying only the latter half of a transmission buffer and returning a virtual ACK to the transmitting side when reception of the former half ends, the acknowledgement need not be waited for, thus permitting efficient data transfer.

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