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1. 发明专利

JP2002232861A VIDEO INFORMATION DISTRIBUTING DEVICE AND OPERATION DEVICE 失效
公开(公告)号：JP2002232861A
公开(公告)日：2002-08-16
申请号：JP2001021024
申请日：2001-01-30
申请人： HITACHI LTD
发明人： ARAI HIDEO , NISHIMURA TAKASHI , OSAWA TETSUYA , MOTOSU SATOSHI
IPC分类号： H04N5/93 , H04N5/38 , H04N5/46 , H04N7/173
摘要： PROBLEM TO BE SOLVED: To distribute appropriate video information corresponding to a reception terminal and a distribution path, and to interrupt and resume distribution even if a plurality of reception terminals are used in on-demand distribution. SOLUTION: Fineness, advertisement video information, character information and reproduction time of video information inputted to a video information distribution device are selected and/or worked based on the given information on the reception terminal and information on the distribution path which have been separately given. Thus, they are distributed as appropriate video information corresponding to the reception terminal and the distribution path. When distribution is interrupted, the interrupted position of a program is stored by every user. When data are distributed in accordance with priority, the array of the distributed programs including the program is reconstructed when a newly arrived content exists in the program which has been distributed until it is resumed after the program is interrupted at the time of distributing data in accordance with priority.

2. 发明专利

JP2002073090A VOICE REPRODUCING DEVICE 失效
公开(公告)号：JP2002073090A
公开(公告)日：2002-03-12
申请号：JP2000260857
申请日：2000-08-25
申请人： HITACHI LTD
发明人： NAKAMURA HIROSHI , FUJII YUKIO , SHIRANE HIROAKI , YAMAMOTO EIJI , OSAWA TETSUYA
IPC分类号： G11B20/10 , G10L19/00 , G10L19/02 , H03M7/30
摘要： PROBLEM TO BE SOLVED: To intermittently output PCM(pulse code modulation) data even at a bit rate where the decode processing of only one channel is conventionally impossible in the reproduction of an encoded audio signal by a quick traverse operation, without enhancing the performance of an audio decoder. SOLUTION: A frame extracting circuit 40 supplies one audio frame to a post-stage channel extracting circuit 80 from the frequency data of all the frames that a stream analysis circuit 70 decoded. Then, the circuit 40 suspends the supply of several next frames. A frequency-time-axis conversion circuit 100 secures the time for decode processing by performing decode while the supply of audio frames are suspended, and then intermittently outputs voice data.

3. 发明专利

JP2003244643A INFORMATION REPRODUCING APPARATUS AND INFORMATION REPRODUCING METHOD 审中-公开
公开(公告)号：JP2003244643A
公开(公告)日：2003-08-29
申请号：JP2002039445
申请日：2002-02-18
申请人： HITACHI LTD
发明人： OSAWA TETSUYA , NISHIMURA TAKASHI , TSUBOI YUKITOSHI
IPC分类号： H04N5/92 , G11B20/10
摘要： PROBLEM TO BE SOLVED: To provide an information reproducing technology capable of smoothly reproducing a video image at a speed optional times multiplied. SOLUTION: This invention provides the information reproducing technology whereby the information reproducing apparatus reproduces a picture of an original video comprising n (n is a natural number greater than 1) images without dropping their frames and reproduces a video image comprising about n/m images in the case of m (m is a natural number greater than 1 and smaller than n) times multiplied speed, and which is characterized in that a plurality of image decoding units decode the image in the case of reproduction at m times multiplied speed. COPYRIGHT: (C)2003,JPO

4. 发明专利

JP2002344974A MOVING PICTURE PROCESSING UNIT 失效
公开(公告)号：JP2002344974A
公开(公告)日：2002-11-29
申请号：JP2001150757
申请日：2001-05-21
申请人： HITACHI LTD
发明人： OSAWA TETSUYA , NISHIMURA TAKASHI , ARAI HIDEO
IPC分类号： H04N19/50 , H03M7/36 , H04N19/132 , H04N19/159 , H04N19/172 , H04N19/423 , H04N19/44 , H04N19/85 , H04N7/32
摘要： PROBLEM TO BE SOLVED: To provide a moving picture processing unit that properly discriminates an image frame not used for a reference image of other image frame so as to conduct recovery skip processing. SOLUTION: The moving picture processing unit, which expands an image frame stream of a moving picture with compressed code quantity of image frames by using an inter image frame prediction system, is characterized in the provision of discrimination means 6, 7 that use each image frame of an image frame stream for a discrimination object so as to discriminate whether or not each image frame is an image frame not used for a reference image of other image frame and provide an output of a discrimination signal showing that the image frame is an image frame capable of recovery skip according to the result of discrimination, a storage means 9 that stores the discrimination signal from the discrimination means, a recovery skip instruction means 11, and recovery skip means 8, 5 that skip an image frame capable of recovery skip corresponding to the discrimination signal stored in the storage means in response to the instruction of the recovery skip instruction means from an image frame stream of a moving picture.

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