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31. 发明专利

JPS60107613A SAMPLE STAGE FOR MICROSCOPE 失效
公开(公告)号：JPS60107613A
公开(公告)日：1985-06-13
申请号：JP21538283
申请日：1983-11-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMADA SHINICHI , SHIBANO MASAYUKI , MATSUMURA RIYUUKICHI , YONEZAWA TAKETOSHI , SHIRAGASAWA TSUYOSHI
IPC分类号： G02B21/26
摘要： PURPOSE:To shorten the examination time by adjusting the suface of a sample so that it is parallel with a plane determined by directions of (x) and (y) axes of a sample stage and focusing one point of the sample thereafter to make it unnecessary to focus the sample hereafter. CONSTITUTION:Pulse motors 32 and 30 and drivers 27 and 25 are provided as (x) and (y) axial direction moving means, and pulse motors 29 and 33 and drivers 24 and 28 are provided as movement angle adjusting means. A point B of a sample 34 is moved under an optical length measurer 37, and the distance of the point B is measured and is inputted to an operation command circuit 20, and the circuit 20 calculates position coordinates of the point B on a basis of this distance and a point E. Similarly, position coordinates of points C and D are obtained; and the command circuit 20 adjust movement angles on a basis of these coordinate values to make the surface of the sample 34 parallel with the plane determined by (x) and (y) axes. Thereafter, one point of the sample surface is focused. Thus, it is unnecessary to focus the sample hereafter, and the examination time is shortened.

32. 发明专利

JP2008123691A Optical disk, optical disc recording apparatus, and optical disk reproducing apparatus 审中-公开
标题翻译：光盘，光盘记录装置和光盘再现装置
公开(公告)号：JP2008123691A
公开(公告)日：2008-05-29
申请号：JP2008029706
申请日：2008-02-08
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： WATANABE KATSUYA , YAMADA SHINICHI , FUJIUNE KENJI , KUZE YUICHI
IPC分类号： G11B20/12 , G11B20/10
摘要： PROBLEM TO BE SOLVED: To perform efficient recording/reproducing without depending upon the capacity of a file and to make the seamless property and random access property of data during recording/reproducing compatible with each other. SOLUTION: In the method for recording/reproducing information on/from an optical disc, the optical disc has a first to an n-th recording layers ((n) is an integer of 2 or greater) laminated on a substrate, each of the first to the n-th layers having data regions segmented into a first to an m-th data zone groups ((m) is an integer of 2 or greater) along a radial direction of the optical disc, each of the first to the m-th data zone groups including at least one data zone, the method comprising the steps of: (a) recording/reproducing information from a j-th data zone group of a first recording layer to a j-th data zone group of an n-th recording layer; and (b) repeating step (a) for j=1, 2, . . . , (m). COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了不依赖于文件的容量而执行有效的记录/再现，并且使记录/再现期间的数据的无缝特性和随机存取属性彼此兼容。解决方案：在用于在光盘上记录/再现信息的方法中，光盘具有层叠在基板上的第一至第n记录层（（n）为2以上的整数）沿着光盘的径向方向，具有被分割成第一至第m数据区组（（m）的数据区域的数据区域中的每一个是2或更大的整数），每个第一涉及包括至少一个数据区的第m个数据区组，该方法包括以下步骤：（a）将信息从第一记录层的第j个数据区组组记录/再现到第j个数据区组的第n记录层; 和（b）重复步骤（a）j = 1,2。。。，（m）。版权所有（C）2008，JPO＆INPIT

33. 发明专利

JP2006040481A Optical disk device 审中-公开
标题翻译：光盘设备
公开(公告)号：JP2006040481A
公开(公告)日：2006-02-09
申请号：JP2004222233
申请日：2004-07-29
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： SHIOTANI MASAMI , YAMADA SHINICHI , KONDO KENJI , WATANABE KATSUYA
IPC分类号： G11B7/095
摘要： PROBLEM TO BE SOLVED: To realize record stable reproduction of a signal at high density by avoiding collision of an objective lens and a disk without fail even when the objective lens with a narrow working distance is used.
SOLUTION: The device is equipped with an optical head 2 for irradiating an optical disk 1 with an optical beam 4 and recording reproducing information; a convergence means for converging the optical beam; a focus control means 12 for driving the convergence means and controlling the optical beam in order to be in a designated convergence state; a tilt detection means 21 for detecting the tilt in the optical disk; and a comparison means for comparing output of the tilt detection means with a designated reference value. The focus control means is disabled when the output of the tilt detection means exceeds a reference value.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使当使用具有窄工作距离的物镜时，通过避免物镜和盘的碰撞而使高密度信号的记录稳定再现。解决方案：该装置配备有用于用光束4照射光盘1的光头2和记录再现信息; 用于会聚光束的会聚装置; 聚焦控制装置12，用于驱动会聚装置并控制光束以便处于指定的会聚状态; 用于检测光盘中的倾斜的倾斜检测装置21; 以及用于将倾斜检测装置的输出与指定的参考值进行比较的比较装置。当倾斜检测装置的输出超过参考值时，聚焦控制装置被禁用。版权所有（C）2006，JPO＆NCIPI

34. 发明专利

JP2005196947A Optical disk drive, optical disk method, and semiconductor integrated circuit 有权
标题翻译：光盘驱动器，光盘方法和半导体集成电路
公开(公告)号：JP2005196947A
公开(公告)日：2005-07-21
申请号：JP2004356080
申请日：2004-12-08
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： SHIMAMOTO TAKESHI , YAMADA SHINICHI , KADOWAKI SHINICHI , KUZE YUICHI , KONDO KENJI , WATANABE KATSUYA
IPC分类号： G11B7/005 , G11B7/09 , G11B7/125
摘要： PROBLEM TO BE SOLVED: To adjust an light beam and a spherical aberration amounts such that reproduced signal quality becomes optimal while performing stable tracking control. SOLUTION: The optical disk drive includes a control means. The control means controls, while the tracking control is in the off state, a focus position changing means so as to change the focus position of an light beam and controls a spherical aberration amount changing means to change a spherical aberration amounts, thereby performing a first search for searching a plurality of sets of the focus position of light beam and the spherical aberration amounts such that the amplitude of a tracking error signal is greater than a predetermined value. The control means performs a second search while the tracking control is in the on state. The second search is for determining a set of the focus position of light beam and the spherical aberration amounts such that a reproduced signal quality index is substantially optimal, among the plurality of sets of the focus position of light beam and the spherical aberration amounts obtained in the first search. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：调整光束和球面像差量，使得再现的信号质量在执行稳定的跟踪控制时变得最佳。光盘驱动器包括控制装置。控制装置在跟踪控制处于关闭状态时控制聚焦位置改变装置，以改变光束的聚焦位置并控制球面像差量改变装置以改变球面像差量，由此执行第一搜索搜索光束的多组聚焦位置和球面像差量，使得跟踪误差信号的幅度大于预定值。控制装置在跟踪控制处于接通状态时执行第二搜索。第二次搜索是用于确定光束的聚焦位置和光束中的球面像差量之间的光束聚焦位置的集合和球面像差量，使得再现的信号质量指数基本上是最佳的第一次搜索。版权所有（C）2005，JPO＆NCIPI

35. 发明专利

JP2004303419A Optical disk system 有权
公开(公告)号：JP2004303419A
公开(公告)日：2004-10-28
申请号：JP2004188145
申请日：2004-06-25
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： WATANABE KATSUYA , MORIYA MITSURO , YAMADA SHINICHI , EDAHIRO YASUAKI , YAMAMOTO TAKEHARU
IPC分类号： G11B7/085 , G11B7/09
摘要： PROBLEM TO BE SOLVED: To realize high-speed and stable focus control of a two-focus head or a disk, having a plurality of information surfaces. SOLUTION: In starting or restarting of a system, when a focal lens is moved close to a disk and then moved away from it, or moved away from the lens and then moved close to it; the amplitude of a S-shaped signal is measured, which appears on FE each time the focal point of the optical beam passes through each information surface, the gain of a focus detection system is switched such that the amplitude becomes a predetermined value, and thus an optimum drawing level is established. Then, when the lens is moved away from the disk from the uppermost point (CD), or when it is moved close to the disk from the lowermost point (DVD), the focus control is operated on the information surface to which the focal point of the optical beam initially reaches and the drawing is completed. Thereafter, once the focus control is set inactive, the speed of the focal lens is increased/decreased, based on the FE signal level and the drawing level established on each information surface, and then the control is shifted to the next information surface. COPYRIGHT: (C)2005,JPO&NCIPI

36. 发明专利

JP2001006190A OPTICAL DISK APPARATUS 失效
公开(公告)号：JP2001006190A
公开(公告)日：2001-01-12
申请号：JP17791899
申请日：1999-06-24
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ABE MASAYOSHI , YAMADA SHINICHI , KONNO KOUJIYU , IZUMI MITSUHIKO
IPC分类号： G11B7/09
摘要： PROBLEM TO BE SOLVED: To reduce circuit elements and improve a stability by adjusting a gain of a variable amplification circuit to make a signal amplitude of reproduction signals of first and second pit arrays integrated by a low pass filter a specific value, and detecting a displacement of light beams and tracks from the reproduction signals of the integrated first and second pit arrays. SOLUTION: A first signal is sent via an LPF 146, a D/A converter 147 and an adder 148 to a power amplifier 129, whereby a transfer motor 114 is controlled in accordance with a low frequency component of a first TE signal. An output of an adder 130 becomes a total quantity of light received by a photodetector 113 and is sent to an address reproduction circuit 131. The address reproduction circuit 131 reproduces a sector address, sends to a DSP 140, sends a signal synchronous with the address to a gate generation circuit 132. A VFO1 signal and a VFO2 signal are delayed by a delay circuit by a predetermined time, logically synthesized to be a sampling signal.

37. 发明专利

JP2000293868A OPTICAL DISK DEVICE 失效
公开(公告)号：JP2000293868A
公开(公告)日：2000-10-20
申请号：JP9733999
申请日：1999-04-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMADA SHINICHI , ABE MASAYOSHI , YAMAGUCHI HIROYUKI
IPC分类号： G11B7/09
摘要： PROBLEM TO BE SOLVED: To provide an optical disk device where a light beam is controlled to the center of a track regardless of offset of a tracking error signal in a header field or offset of the tracking error signal due to displacement of an object lens which is caused by deviation of a detector for tracking error detection or eccentricity of the disk. SOLUTION: A second TE signal is detected on the basis of the difference between the amplitude of a total reflection light quantity signal (the output of an adder 130) obtained at the time of passage of a light beam on a first pit array formed in a position deviated to a track of a disk 100 in one of orthogonal directions and that obtained at the time of passage of the light beam on a second pit array formed in a position deviated to the track in the other direction, thus correcting the TE signal (the output of a subtractor 125) based on the push-pull method. In the header field, a tracking control system is set to the holding state by an S/H circuit 850.

38. 发明专利

JP2000048372A OPTICAL DISK 失效
公开(公告)号：JP2000048372A
公开(公告)日：2000-02-18
申请号：JP22254499
申请日：1999-08-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MATSUMOTO YASUKI , MORIYA MITSURO , YAMADA SHINICHI
IPC分类号： G11B7/24 , G11B7/00 , G11B7/007 , G11B7/30 , G11B20/12
摘要： PROBLEM TO BE SOLVED: To provide an optical disk by which a desired track is retrieved with a simple configuration and information is stored with high density. SOLUTION: This optical disk 101 has a first rewritable recording area, and a second recording area exclusive for reproducing. The first recording area has spiral shaped groove tracks where projecting and recessed tracks are alternatively arranged. These groove tracks have data recording areas. The second recording area has a projecting and recessed pit configuration and has spiral pit tracks where the reproducing data is exclusively recorded. The first recording area has plural zones. The number of sectors in a zone becomes smaller as the zones move toward the inner side. The leading sectors in each track of the second recording area are arranged in a radial manner and the leading sector of each track in the second recording area and the leading sectors in the first recording area are aligned in at least one radial line.

39. 发明专利

JPH10134380A TRACKING CONTROL DEVICE 失效
公开(公告)号：JPH10134380A
公开(公告)日：1998-05-22
申请号：JP28952396
申请日：1996-10-31
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMADA SHINICHI , EDAHIRO YASUAKI , YAMAGUCHI OSAMU
IPC分类号： G11B7/085 , G11B7/09
摘要： PROBLEM TO BE SOLVED: To enhance tracking control pull-in performance without always widening a tracking control band by raising a gain of a D signal component generating system of a PID control system during the time from immediately after operating a tracking control means to control of a tracking control system. SOLUTION: At the time of operating the tracking control, a terminal (a) of a microcomputer 201 is made to be H level to operate switches 133 and 139 to connect with their respective terminals (b) and (a). Consequently, a digital filter 204 is released from its clear state, and a focusing lens 103 is driven in accordance with a TE signal. The level change of the terminal (a) from L level to H level is detected by a timer 209 to make its terminal (b) H level during a prescribed period of time from the point of this changing time. After a lapse of the prescribed time, the gain of the D signal component generating system becomes a normal gain. Consequently, the normal tracking control is carried out. In other words, the control band is widened during the prescribed period of time, thus enhancing the tracking control pull-in performance.

40. 发明专利

JPH08321050A METHOD FOR CORRECTING OFFSET OF TRACKING ERROR SIGNAL 失效
公开(公告)号：JPH08321050A
公开(公告)日：1996-12-03
申请号：JP12614995
申请日：1995-05-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMAMOTO TAKEHARU , YAMADA SHINICHI , MORIYA MITSURO
IPC分类号： G11B7/09
摘要： PURPOSE: To highly precisely correct an offset of a tracking error signal generated by variations of a disk or a head. CONSTITUTION: Under the state of tracking control, a switch 128 is opened to unoperate transfer control, and a lens is shifted by a track-jump. Under this state, a signal of a differential amplifier 211 in a mirror part is held by a sample-and-hold circuit 212 to measure an offset of the mirror part. Then, a peak value and a bottom value of the signal of the differential amplifier 211 at the time of a still-jump are measured by a peak and bottom detecting circuit 125 to obtain their individual offsets of the tracking error signal, and an amplification factor of a variable amplifier 113 is decided based on these two offset values. By this method, the offset of the tracking error signal can thus be corrected with high precision.

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