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1. 发明专利

JP2010157315A Aspheric lens and optical pickup adopting the same as objective lens 审中-公开
标题翻译：相机镜头和光学拾取器采用目标镜头
公开(公告)号：JP2010157315A
公开(公告)日：2010-07-15
申请号：JP2009298375
申请日：2009-12-28
申请人： Samsung Electronics Co Ltd , 三星電子株式会社Samsung Electronics Co.,Ltd.
发明人： KIM BONG-GI , MORISHITA ICHIRO , PARK SOO-HAN , JO CHUGEN
IPC分类号： G11B7/135 , G02B13/00 , G02B13/18
CPC分类号： G02B3/04 , G11B7/1374 , G11B7/13922
摘要： PROBLEM TO BE SOLVED: To provide an aspheric lens and an optical pickup adopting the same as an objective lens. SOLUTION: The aspheric lens 17 includes at least one aspheric lens surface, and an angle of inclination on the aspheric lens surface is smaller than or equal to 65°. The aspheric lens surface is formed by applying the equation (1) (wherein, L≠0, c is a curvature, r 2 =x 2 +y 2 , K is a conic constant, and L and A to J are aspheric coefficients). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种非球面透镜和采用该物镜的光学拾取器。解决方案：非球面透镜17包括至少一个非球面透镜表面，并且非球面透镜表面上的倾斜角度小于或等于65°。通过应用等式（1）形成非球面透镜表面（其中，L≠0，c是曲率，r 2 = x 2 + Y 2 K是圆锥常数，L和A到J是非球面系数）。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2000076681A Servo error detection method and device suited to it 审中-公开
标题翻译：伺服错误检测方法及其设备
公开(公告)号：JP2000076681A
公开(公告)日：2000-03-14
申请号：JP24054599
申请日：1999-08-26
申请人： Samsung Electronics Co Ltd , 三星電子株式会社
发明人： SHU SEISHIN , PARK IN-SIK , BA HEIIN , CHUNG CHONG-SAM , YOO JANG-HOON , KO JUNG-WAN , LEE KYUNG-GEUN , JO CHUGEN
IPC分类号： G11B7/24 , G11B7/00 , G11B7/007 , G11B7/09 , G11B7/095 , G11B20/12 , G11B21/10
CPC分类号： G11B7/00718 , G11B7/0901 , G11B7/0938 , G11B7/0941 , G11B7/0956
摘要： PROBLEM TO BE SOLVED: To accurately grasp a tilt state of a disk by detecting a servo error according to a ratio between sizes of regenerative signals correspondent to reference patterns recorded on two positions separated from each other.
SOLUTION: A balance operation part 70 operates the ratio between the size Ivf01 of a vf01 signal detected from a first synchronizing signal level detector 66 and the size Ivf03 of a vf03 signal detected from a second synchronizing level detector 68. A comparison part 72 compares a balance value K1 operated by the balance operation part 70 with a prescribed reference value K0 to output a difference Kt between two values. A land/groove detection part 76 inputs the regenerative signal, and detects whether a present track is a land track or a groove track, and a polarity inversion part 78 inverts a polarity of the difference value Kt outputted from the comparison part 72 according to the result. A tilt adjustment part 74 adjusts the tilt of the disk according to the polarity inverted difference value Kt outputted from the polarity inversion part 78.
COPYRIGHT: (C)2000,JPO
摘要翻译：要解决的问题：通过根据记录在彼此分离的两个位置上记录的参考图案的再生信号的大小之间的比率检测伺服误差来准确地掌握盘的倾斜状态。解决方案：平衡操作部分70操作从第一同步信号电平检测器66检测的vf01信号的尺寸Ivf01与从第二同步电平检测器68检测的vf03信号的尺寸Ivf03之间的比率。比较部分72将由平衡运算部70运算的平均值K1为规定的基准值K0，输出两个值之间的差Kt。纹间/沟槽检测部76输入再生信号，并检测当前的曲目是否是平面曲面或纹道，极性反转部78根据比较部72反转从比较部72输出的差值Kt的极性结果。倾斜调整部74根据从极性反转部78输出的极性反转差值Kt来调整盘的倾斜。

3. 发明专利

JP2004265593A Optical recording/reproducing disk 审中-公开
公开(公告)号：JP2004265593A
公开(公告)日：2004-09-24
申请号：JP2004150990
申请日：2004-05-20
申请人： Samsung Electronics Co Ltd , 三星電子株式会社
发明人： SHU SEISHIN , PARK IN-SIK , BA HEIIN , CHUNG CHONG-SAM , YOO JANG-HOON , KO JUNG-WAN , LEE KYUNG-GEUN , JO CHUGEN
IPC分类号： G11B7/24 , G11B7/00 , G11B7/007 , G11B7/09 , G11B7/095 , G11B20/12 , G11B21/10
CPC分类号： G11B7/00718 , G11B7/0901 , G11B7/0938 , G11B7/0941 , G11B7/0956
摘要： PROBLEM TO BE SOLVED: To provide a servo error detecting method, a device suitable for the same, a disk for guaranteeing the quality of a servo error signal, a servo control method for a disk recording/reproducing device, a tracking error detecting method, and a tilt error detecting method. SOLUTION: In the device for recording/reproducing to/from a disk in which regular reference patterns having fixed sizes are recorded in a data area, the servo error of a recording/reproducing device is detected at least by the ratio of the size of reproducing signals corresponding to reference patterns recorded in two separated positions. COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2003067957A Servo error detection method and apparatus suitable for the same 审中-公开
标题翻译：伺服错误检测方法和适用于其的装置
公开(公告)号：JP2003067957A
公开(公告)日：2003-03-07
申请号：JP2002199240
申请日：2002-07-08
申请人： Samsung Electronics Co Ltd , 三星電子株式会社
发明人： SHU SEISHIN , PARK IN-SIK , BA HEIIN , CHUNG CHONG-SAM , YOO JANG-HOON , KO JUNG-WAN , LEE KYUNG-GEUN , JO CHUGEN
IPC分类号： G11B7/24 , G11B7/00 , G11B7/007 , G11B7/09 , G11B7/095 , G11B20/12 , G11B21/10
CPC分类号： G11B7/00718 , G11B7/0901 , G11B7/0938 , G11B7/0941 , G11B7/0956
摘要： PROBLEM TO BE SOLVED: To provide a servo error detection method, an apparatus suitable for the same, a disk securing the quality of a servo error signal, a servo control method for a disk recording/reproducing apparatus, a tracking error detection method, and a tilt error detection method.
SOLUTION: In the apparatus which records/reproduces a disk in which a regular standard pattern having a constant dimension is recorded on a data region, a servo error of the recording/reproducing apparatus is detected according to the ratio of the magnitude of the reproduction signals corresponding to the standard pattern recorded in two positions at least separate each other.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种伺服误差检测方法，适用于此的装置，确保伺服误差信号的质量的盘，用于盘记录/再现装置的伺服控制方法，跟踪误差检测方法和倾斜误差检测方法。解决方案：在记录/再现其中具有恒定尺寸的常规标准图案的盘被记录在数据区域上的装置中，根据再现信号的大小的比率来检测记录/再现装置的伺服误差对应于记录在至少彼此分离的两个位置的标准模式。

5. 发明专利

JP2003030880A Servo error detection method and device adapted to this method 审中-公开
标题翻译：伺服错误检测方法和适用于该方法的装置
公开(公告)号：JP2003030880A
公开(公告)日：2003-01-31
申请号：JP2002199239
申请日：2002-07-08
申请人： Samsung Electronics Co Ltd , 三星電子株式会社
发明人： SHU SEISHIN , PARK IN-SIK , BA HEIIN , CHUNG CHONG-SAM , YOO JANG-HOON , KO JUNG-WAN , LEE KYUNG-GEUN , JO CHUGEN
IPC分类号： G11B7/24 , G11B7/00 , G11B7/007 , G11B7/09 , G11B7/095 , G11B20/12 , G11B21/10
CPC分类号： G11B7/00718 , G11B7/0901 , G11B7/0938 , G11B7/0941 , G11B7/0956
摘要： PROBLEM TO BE SOLVED: To provide a servo error detection method, a device adapted to this method, a disk which secures the quality of a servo error signal, a servo control method for a disk recording and reproducing device, a tracking error detection method, and tilt error detection method.
SOLUTION: With respect to a device for recording and reproducing of a disk on which a regular reference pattern having a certain size is recorded in a data area, a servo error of the recording and reproducing device is detected by a ratio of magnitudes of reproduced signals corresponding to reference patterns recorded in at two positions separated from each other.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供伺服误差检测方法，适用于该方法的装置，确保伺服误差信号的质量的盘，用于盘记录和再现装置的伺服控制方法，跟踪误差检测方法，和倾斜误差检测方法。解决方案：对于其中在数据区中记录具有一定尺寸的规则参考图案的盘的记录和再现装置，通过再现信号的幅度的比率来检测记录和再现装置的伺服误差对应于记录在彼此分离的两个位置的参考图案。

6. 发明专利

JP2001155354A TRACKING ERROR SIGNAL DETECTING DEVICE AND REPRODUCED SIGNAL DETECTING DEVICE 失效
公开(公告)号：JP2001155354A
公开(公告)日：2001-06-08
申请号：JP2000327665
申请日：2000-10-26
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： BA HEIIN , PARK IN-SIK , JO CHUGEN , CHUNG CHONG-SAM
IPC分类号： G11B7/005 , G11B7/09 , G11B7/13 , G11B7/133
摘要： PROBLEM TO BE SOLVED: To provide a tracking error signal detecting device that the problem of an offset due to differences among gain characteristics and/or pit depths is solved by improving the split structure of an octapertite photodetector, and to provide a reproduced signal detecting device that crosstalk noise is reduced. SOLUTION: This tracking error signal detecting device is provided with a photodetector and a circuit part. It is characterized by that the photodetector is provided with four light receiving areas whose split boundary lines are parallel with lines corresponding to the radius direction and the tangential direction of a recording medium respectively and which are arranged in a counter-clockwise direction and the four light receiving areas are bisected so as to have inside slit plates and outside split plates whose widths following to the radius direction are changed at positions of ± tangential directions from center parts of respective photodetectors to form eight of inside and outside split plates forming a matrix with 2 rows and 4 columns and the circuit part is provided so as to detect a tracking error signal from phase difference signals after comparing phases between inside and/or outside split plates positioned at the same rows with each other.

7. 发明专利

JP2001035001A OPTICAL PICKUP DEVICE CAPABLE OF STABLY TRACKING 失效
公开(公告)号：JP2001035001A
公开(公告)日：2001-02-09
申请号：JP2000202779
申请日：2000-07-04
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： YOO JANG-HOON , CHO KUN-HO , JUNG SEUNG-TAE , LEE CHUL-WOO , JO CHUGEN , SHIN DONG-HO
IPC分类号： G11B7/09 , G11B7/085 , G11B7/125 , G11B7/135 , G11B7/1356 , G11B7/1372 , G11B7/139 , G11B11/105
摘要： PROBLEM TO BE SOLVED: To provide an optical pickup device capable of stably tracking. SOLUTION: The device is equipped with an optical source 30 to generate light, a means of converting optical passage to convert passing route of incident light, and an optical detecting unit 80 which receives light reflected from an objective lens having an incident region of a prescribed size and a recording medium so as to converge the incident light and to form a light spot on the recording medium and sent by way of the objective lens and the means of converting optical passage; further the device includes a tracking mirror 50 which is arranged on the optical passage between the means of converting optical passage and the objective lens 60 and adjusts the direction of reflected light incident from the light source so that the light spot may follow a correct track position and further includes a lens unit comprising at least two sheets of lenses which makes the reflected light from the tracking mirror incident into an incident region of the objective lens.

8. 发明专利

JP2002170341A DEVICE AND METHOD FOR REPRODUCING SIGNAL 审中-公开
公开(公告)号：JP2002170341A
公开(公告)日：2002-06-14
申请号：JP2001275539
申请日：2001-09-11
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： KIM KIGEN , JO CHUGEN , SHIM JAE-SEONG
IPC分类号： G06F11/10 , G11B20/10 , G11B20/18 , H04L1/00
摘要： PROBLEM TO BE SOLVED: To provide a signal reproducing device which reproduces a part having the most errors and the rest signal after correcting the errors by applying optimum path detection algorithm only to the part having the most error in a signal to be reproduced in order not to make hardware and software complicated. SOLUTION: This signal reproducing device for reproducing the original record signal ak from a prescribed channel signal, includes a maximum error area deciding part 300 for deciding a maximum error area from the channel signal y(t), an optimum path searching part 310 for searching for a minimum error path by using only an error signal on the error area decided by the deciding part 300 and correcting the minimum error path, and a signal restoring part 320 for applying prescribed algorithm to the channel signal y(t) on which a signal part corrected by the searching part 310 is reflected and restoring the first record signal.

9. 发明专利

JP2002049518A DATABASE UPDATING METHOD USING RECORDABLE OPTICAL DISK AND DEVICE SUITABLE THERETO 失效
公开(公告)号：JP2002049518A
公开(公告)日：2002-02-15
申请号：JP2001176218
申请日：2001-06-11
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： JO CHUGEN , KO JUNG-WAN , KIN HEISHUN
IPC分类号： G06F12/00 , G06F17/30 , G11B20/10
摘要： PROBLEM TO BE SOLVED: To provide a method which makes it possible to correct and update a database on-line by using a recordable optical disk as a recording medium and a device which is suitable thereto. SOLUTION: A user computer includes an optical disk recording and reproducing device which records and reproduces data on the optical disk where a database and the final update date and time are recorded and is so programmed as to record corrected/updated data sent from a server on the optical disk, and the server is so programmed as to transmit data to be corrected or updated to the user computer so that the user computer can record the data to be corrected or updated to the optical disk through the optical recording and reproducing device when the final update date and time of recording to the optical disk are transmitted from the user computer and the correction or update is necessary.

10. 发明专利

JP2001110074A ERROR SIGNAL DETECTOR FOR OPTICAL RECORDER-REPRODUCER, AND REPRODUCING SIGNAL DETECTOR 失效
公开(公告)号：JP2001110074A
公开(公告)日：2001-04-20
申请号：JP2000280634
申请日：2000-09-14
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： BA HEIIN , CHOI BYOUNG-HO , CHUNG CHONG-SAM , PARK IN-SIK , TO DAIYO , JO CHUGEN
IPC分类号： G11B7/09 , G11B7/095 , G11B7/13 , G11B7/131
摘要： PROBLEM TO BE SOLVED: To provide an error signal detector which is used for an optical recorder-reproducer to detect tracking and/or tilting error signals with high accuracy by making the best use of the phase characteristics by the light areas which are reflected/diffracted on a recording medium. SOLUTION: This detector has an information signal detecting light detector that receives the light which are reflected/diffracted on a recording medium and a circuit part which calculates the detection signal of the light detector and detects an error signal. The light detector includes eight light receiving areas of a (2×4) matrix array where the row and column directions are set almost in parallel to the directions corresponding to the radial and tangential directions respectively so that the light which are reflected/diffracted on the recording medium and received undergo the photoelectric conversion independently of each other. The circuit part compares the phases of detection signals of the inside and/or outside light receiving areas which are positioned in the same row and then obtains the tilting and/or tracking error signals from the phase comparison signals.

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