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1. 发明专利

JP2002237064A TRACKING CONTROL DEVICE AND DISK DEVICE 失效
公开(公告)号：JP2002237064A
公开(公告)日：2002-08-23
申请号：JP2001034310
申请日：2001-02-09
申请人： JAPAN BROADCASTING CORP
发明人： KOIDE DAIICHI , YANAGISAWA HITOSHI , TOKUMARU HARUKI
IPC分类号： G11B7/09
摘要： PROBLEM TO BE SOLVED: To provide a tracking control device and a disk device having a stable and high follow-up performance by securing stability of the tracking control device and also improving a light spot follow-up performance to a track on an optical disk running at a high speed, relating to the tracking control device and the disk device outputting a tracking error signal with correction. SOLUTION: The device is provided with a compensation means for generating a compensation signal for compensating for the tracking error signal, a limiting means for limiting the compensation signal generated by the compensation means according to the time lapse, and a summing means for summing the compensation signal limited by the limiting means and the tracking error signal. The limiting means 1 limits the correction signal for correcting the tracking error signal according to a prescribed time or time lapse when tracking starts.

2. 发明专利

JP2002074818A OPTICAL DISK DRIVING DEVICE 失效
公开(公告)号：JP2002074818A
公开(公告)日：2002-03-15
申请号：JP2000255255
申请日：2000-08-25
申请人： JAPAN BROADCASTING CORP
发明人： ARAI KIYOTAKA , KASAI HARUO , KOIDE DAIICHI , TOKUMARU HARUKI
IPC分类号： G11B19/20 , G11B7/095
摘要： PROBLEM TO BE SOLVED: To provide an optical disk driving device which permits to reduce an eccentric throw with accuracy, and is quiet and resistant to an external shock. SOLUTION: This optical disk driving device is provided with a means 32 for obtaining a direction and amount of a deviation between the track center and the rotation center of the disk using the information on a time interval of a light spot crossing plural tracks and an angle of rotation of the optical disk by scanning the surface of the rotating optical disk 1 with the light spot emitted from an optical head; a supporting mechanism 3 provided with two pieces of active deviation means which actively deviate the position of the optical disk coupled to and mounted on the rotary shaft of the rotary driving means 8 and at least one piece of passive deviation means which deviate it by an elastic body; and a means 32 for deviating the position of the optical disk in a desired direction by a desired amount and minimizing the distance between positions of the track outer and the rotation center by drive-controlling the two active deviation means according to the detection result by the means 32.

3. 发明专利

JP2006325086A APPARATUS WITH ANIMATION DATA REPRODUCTION FUNCTION AND ANIMATION DATA REPRODUCING METHOD 审中-公开
公开(公告)号：JP2006325086A
公开(公告)日：2006-11-30
申请号：JP2005147976
申请日：2005-05-20
申请人： CANOPUS CO LTD , JAPAN BROADCASTING CORP
发明人： YOSHIDA CHIKO , KUBOTA YOSUKE , KOIDE DAIICHI , KISHIDA MASAHIKO , TOKUMARU HARUKI
IPC分类号： H04N5/91 , G11B20/10 , G11B27/034 , H04N5/92
摘要： PROBLEM TO BE SOLVED: To provide an apparatus capable of quickly obtaining a target frame even when a moving type recording unit records encoded animation data. SOLUTION: A stream cache processing means 10 reads part of an animation data file 6 whose use is estimated from a moving type recording section 2 on the basis of prediction by a prediction means 8 and records the read file to a non-moving type recording section 14. In this case, the non-moving type recording section 14 records a frame number and an access position of each frame recorded therein altogether. A restoring means 24 reads a target frame from the non-moving type recording section 14. In this case, the restoring means 24 can quickly read the target frame by referencing the frame number and the access position recorded in the non-moving type recording section 14. A restoring means 14 restores the frame on the basis of the read data and a display section 26 displays the frame. COPYRIGHT: (C)2007,JPO&INPIT

4. 发明专利

JP2006325082A ANIMATION DATA EDIT APPARATUS AND METHOD 审中-公开
公开(公告)号：JP2006325082A
公开(公告)日：2006-11-30
申请号：JP2005147951
申请日：2005-05-20
申请人： CANOPUS CO LTD , JAPAN BROADCASTING CORP
发明人： YOSHIDA CHIKO , KUBOTA YOSUKE , KISHIDA MASAHIKO , KOIDE DAIICHI , TOKUMARU HARUKI
IPC分类号： H04N5/91 , G11B20/10 , G11B27/034 , H04N5/92
摘要： PROBLEM TO BE SOLVED: To provide an animation edit apparatus whereby special effects can be confirmed by reproducing each frame as the same time lapse as a time lapse at reproduction even when the special effects are applied to each frame. SOLUTION: An estimate means 16 restores a frame of an edit object on the basis of a main animation data file 6 so as to estimate whether or not a time Tp required for application of special effect processing has a margin with respect to a time Tr for actually reproducing the frame (e.g. whether or not a relation of Tp COPYRIGHT: (C)2007,JPO&INPIT

5. 发明专利

JP2003091841A TRACKING CONTROLLER 审中-公开
公开(公告)号：JP2003091841A
公开(公告)日：2003-03-28
申请号：JP2001283006
申请日：2001-09-18
申请人： JAPAN BROADCASTING CORP , UNIV NAGAOKA TECHNOLOGY
发明人： YANAGISAWA HITOSHI , KOIDE DAIICHI , TOKUMARU HARUKI , OISHI KIYOSHI
IPC分类号： G11B7/09
摘要： PROBLEM TO BE SOLVED: To provide a tracking controller having the stable and high follower property with respect to a track on an optical disk rotating at a high speed. SOLUTION: The stable compensation signal is obtained in such a manner that the improvement of a tracking error signal made by the compensation signal added to the tracking error signal is obtained by a means for producing the tracking error compensation signal and it is added to the tracking error signal as the tracking error compensation signal by an adding means 14.

6. 发明专利

JP2003091967A EXTERNAL COVER ATTACHED DISK AND ITS RECORDING/ REPRODUCING DEVICE 审中-公开
公开(公告)号：JP2003091967A
公开(公告)日：2003-03-28
申请号：JP2001240098
申请日：2001-08-08
申请人： JAPAN BROADCASTING CORP
发明人： ISHIKAWA KIYOHIKO , KOIDE DAIICHI
IPC分类号： H04N5/85 , G11B23/30 , G11B27/02 , H04N5/907 , H04N5/91
摘要： PROBLEM TO BE SOLVED: To provide an external cover attached disk which reduces time and labor in off-line editing, and also to provide its recording/reproducing device. SOLUTION: In the external cover attached disk 1, an external cover 5 is attached to a recording medium disk 3, and mounted with a solid memory 7 that is arranged around the disk 3. The recording/reproducing device for this disk is equipped with a means for identifying the solid memory 7 around the recording medium disk 3 and a means for recording/reproducing data, on the solid memory 7 so identified, at a low rate compared with the rate for reading the data recorded and read out on the disk 3.

7. 发明专利

JP2002334464A LIGHT PICKUP WITH TILT DETECTION FUNCTION 失效
公开(公告)号：JP2002334464A
公开(公告)日：2002-11-22
申请号：JP2001142858
申请日：2001-05-14
申请人： KENWOOD CORP , JAPAN BROADCASTING CORP
发明人： TOKIWA KAZUNORI , ABE KAZUNARI , HIRAGA TAKAYOSHI , MIYAZAWA HIROSHI , TOKUMARU HARUKI , SHIMIZU NAOKI , YANAGISAWA HITOSHI , KOIDE DAIICHI
IPC分类号： G11B7/095 , G11B7/135
摘要： PROBLEM TO BE SOLVED: To accurately detect the tilt of a signal face which is being recorded or reproduced. SOLUTION: A main laser beam ML generated for recording or reproducing is guided with a main optical system 27 and the signal face 12 of a light disk 1 is irradiated with the laser beam through an objective lens 25. A sub laser beam SL generated for detecting the tilt of the light disk is guided with a sub optical system 55 and condensed at defocus on the signal face 12 through the objective lens 25 while being superimposed with the main laser beam ML. A returning laser beam SL' reflected on the signal face 12 is guided with the sub optical system 55 and condensed on a tetrameric photodetector 60 for detecting the tilt of the light disk with a condensor lens 54. In the case that the optical disk 1 is tilted based on the optical axis of the objective lens 25 looking toward the radial direction, a deviation in the returning laser beam SL' occurs, a difference appears between the total receiving amount of the photodetectors A and D of the tetrameric photodetector 60 and the total receiving amount of the photodetectors B and C, thus a tilt detection signal looking toward the radial direction is made from the output of the light detection of the tetrameric photodetector 60.

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