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1. 发明授权

US5617399A Write intensity calibration of a recording beam by reading a test pattern written on a buffer sector of a record carrier 失效
标题翻译：通过读取写在记录载体的缓冲区上的测试图形来对记录光束进行写入强度校准
公开(公告)号：US5617399A
公开(公告)日：1997-04-01
申请号：US386786
申请日：1995-02-10
申请人： Johannes H. M. Spruit , Johannus L. Bakx
发明人： Johannes H. M. Spruit , Johannus L. Bakx
IPC分类号： G11B11/10 , G11B7/00 , G11B7/0045 , G11B7/0055 , G11B7/126 , G11B11/105 , G11B20/12 , G11B20/18 , G11B27/36
CPC分类号： G11B7/126 , G11B11/10504 , G11B11/10595 , G11B20/1258 , G11B20/182 , G11B27/36 , G11B2220/2525
摘要： Disclosure is given of a device and method for recording by means of a radiation beam user information on a record carrier. The user information is written in the form of optically detectable marks in concentric tracks. The tracks are subdivided into sectors. The record carrier used has ring-shaped zones. Within these zones lie the sectors aligned seen in radial direction. For writing the marks in the tracks, a write intensity of the radiation beam is set to a determined set value. For this purpose, a test information pattern is written in a buffer sector which is situated on an edge of a zone. Then the test information pattern is read back during which operation the test information pattern is converted to a corresponding test data pattern. Based upon the test data pattern a set value for the write intensity is determined.
摘要翻译：给出了通过在记录载体上的辐射束用户信息记录的装置和方法。用户信息以同心轨迹中的可光学检测标记的形式写入。轨道细分为扇区。使用的记录载体具有环形区域。在这些区域内，沿着径向对准的扇区。为了在轨道中写入标记，将辐射束的写入强度设置为确定的设定值。为此，将测试信息模式写入位于区域边缘的缓冲区段中。然后在测试信息模式被转换成相应的测试数据模式的过程中读回测试信息模式。基于测试数据模式，确定写入强度的设定值。

2. 发明授权

US5365508A Magneto-optical read/write device 失效
标题翻译：磁光读写装置
公开(公告)号：US5365508A
公开(公告)日：1994-11-15
申请号：US154133
申请日：1993-11-18
申请人： Johannus L Bakx
发明人： Johannus L Bakx
IPC分类号： G11B11/10 , G11B11/105 , G11B20/24 , G11B11/12
CPC分类号： G11B11/10597
摘要： A magneto-optical read/write device having a radiation detection system which includes two radiation-sensitive detectors the outputs of which are connected via DC coupled current-to-voltage converters to an input of an adder circuit and an input of a subtracter circuit to obtain a sum signal and a difference signal. The sum signal on the output of the adder circuit is coupled to an input of a selection circuit via a capacitive coupling. The difference signal on the output of the subtracter circuit is coupled to another input of the selection circuit. The output of the selection circuit is coupled to a signal processing circuit via another capacitive coupling. The device is particularly suited for use with a magneto-optical record carrier having sector headers with a pre-arranged pit structure. When information areas between the sector headers are recorded and erased, the device maintains the intensity level at a constant read level during scanning of the sector headers and avoids production of undesired transition phenomena at the output of the selection circuit.
摘要翻译：一种具有放射线检测系统的磁光读/写装置，其包括两个辐射敏感检测器，其输出端通过直流耦合电流 - 电压转换器连接到加法器电路的输入端和减法器电路的输入端获得和信号和差分信号。加法器电路的输出上的和信号通过电容耦合耦合到选择电路的输入端。减法器电路的输出上的差分信号耦合到选择电路的另一个输入端。选择电路的输出通过另一个电容耦合耦合到信号处理电路。该装置特别适用于具有预定凹坑结构的扇区头部的磁光记录载体。当记录和擦除扇区头部之间的信息区域时，器件在扫描扇区头部期间将亮度水平维持在恒定的读取电平，并避免在选择电路的输出端产生不需要的转换现象。

3. 发明授权

US06580680B1 Optical disc and apparatus for scanning the optical disc 失效
标题翻译：用于扫描光盘的光盘和设备
公开(公告)号：US06580680B1
公开(公告)日：2003-06-17
申请号：US09366694
申请日：1999-08-04
申请人： Gijsbert J. Van Den Enden , Johannes H. M. Spruit , Johannus L. Bakx , Shoei Kobayashi , Masayuki Arai , Yoshiyuki Akiyama
发明人： Gijsbert J. Van Den Enden , Johannes H. M. Spruit , Johannus L. Bakx , Shoei Kobayashi , Masayuki Arai , Yoshiyuki Akiyama
IPC分类号： G11B700
CPC分类号： G11B7/007 , G11B7/00745
摘要： The invention relates to an optical disc for recording data at a constant density, so called CLV (Constant Linear Velocity) or at zoned CLV. The disc has headers distributed along the disc on regular angular positions, a so called CAV (Constant Angular Velocity) pattern subdividing the track in track portions for recording an amount of data proportional to the radical position of the track portion concerned. Address information included in the headers is provided at the data density, which is CLV. The apparatus comprises header detection means for detecting the headers at the CAV locations, and for recovering position information from the headers at CLV density. Data sectors do not start at headers and are not fitted regularly between the headers, but start and stop at arbitrary positions which are calculated from the known amounts of data recordable in the track portion.
摘要翻译：本发明涉及用于以恒定密度记录数据的光盘，即所谓的CLV（恒定线速度）或分区CLV。光盘具有沿着盘的规则角位置分配的头部，即所谓的CAV（恒角速度）图案，其将轨道部分中的轨道细分，用于记录与相关轨道部分的激进位置成比例的数据量。标题中包含的地址信息是以CLV的数据密度提供的。该装置包括头部检测装置，用于检测CAV位置处的头部，并用于从CLV密度的头部恢复位置信息。数据扇区不以标题开始，并且不能在标题之间定期设置，而是可以从在轨道部分中可记录的已知数据量计算的任意位置开始和停止。

4. 发明授权

US06320825B1 Method and apparatus for recording compressed variable bitrate audio information 有权
标题翻译：用于记录压缩的可变比特率音频信息的方法和装置
公开(公告)号：US06320825B1
公开(公告)日：2001-11-20
申请号：US09355380
申请日：1999-07-26
申请人： Alphons A.M.L. Bruekers , Wiebe De Haan , Johannus L. Bakx , Leon M. Van De Kerkhof
发明人： Alphons A.M.L. Bruekers , Wiebe De Haan , Johannus L. Bakx , Leon M. Van De Kerkhof
IPC分类号： G11B1722
CPC分类号： G11B20/00007 , G11B7/0045 , G11B7/005 , G11B20/10 , G11B27/034 , G11B27/105 , G11B27/329 , G11B2220/2545
摘要： A method for recording audio information on a record carrier, typically a bitstream signal on an optical disc, is disclosed. In the method the audio information is encoded to compressed audio data having a variable bitrate, in particular using lossless compression. The compressed audio data is recorded at a transfer speed which is controlled in dependence on the variable bitrate. A transfer speed profile (53, 54, 55) is determined for items of audio information, e.g. for each track on a CD, in which profile the average transfer speed is higher than an average transfer speed minimally required to transfer the compressed audio data of said item. Stuffing data is added to the compressed audio data according to the transfer speed profile, and transfer speed profile information is recorded on the record carrier for enabling playback at a transfer speed as indicated by the transfer speed profile information. Also a recording device, a record carrier and a playback device are disclosed.
摘要翻译：公开了一种在记录载体上记录音频信息的方法，通常是光盘上的比特流信号。在该方法中，音频信息被编码为具有可变比特率的压缩音频数据，特别是使用无损压缩。以按照可变比特率进行控制的传送速度记录压缩音频数据。确定传送速度分布（53,54,55）用于音频信息的项目，例如，对于CD上的每个轨道，其中平均传送速度高于传送所述项目的压缩音频数据所需的平均传送速度。根据传送速度分布将填充数据添加到压缩音频数据，并且传送速度分布信息被记录在记录载体上，以便以传送速度分布信息所指示的传送速度进行播放。还公开了一种记录装置，记录载体和播放装置。

5. 发明授权

US6075670A Device for scanning a disc-shaped information carrier with controlled changes in angular and linear velocities 失效
标题翻译：用于以受控角度和线速度的变化扫描盘形信息载体的装置
公开(公告)号：US6075670A
公开(公告)日：2000-06-13
申请号：US538517
申请日：1995-10-03
申请人： Gheorghe S. Stan , Johannus L. Bakx
发明人： Gheorghe S. Stan , Johannus L. Bakx
IPC分类号： G11B15/46 , G11B19/00 , G11B19/20 , G11B19/24 , G11B19/26 , G11B19/28 , G11B20/10 , G11B20/12 , G11B27/13 , G11B27/30
CPC分类号： G11B19/20 , G11B19/00 , G11B19/24 , G11B19/26 , G11B19/28 , G11B20/10 , G11B20/1217 , G11B20/1258 , G11B27/13 , G11B27/3027 , G11B2220/20 , G11B2220/213 , G11B2220/218 , G11B2220/2525 , G11B2220/2545
摘要： For scanning a disc-shaped information carrier at a high average information rate and with minimum access time, the angular velocity is decreased substantially as the radial distance to the scan location increases, while at the same time the linear velocity of track scanning increases substantially. The track may be divided into zones which are scanned with constant angular velocity. With respect to the inner tracks of at least two adjacent zones, or the innermost and the outermost tracks, the angular velocity decreases less than inversely with increase of radial distance, while the linear velocity increases less than proportionally with increase of radial distance.
摘要翻译：为了以高平均信息速率和最小访问时间扫描盘形信息载体，随着到扫描位置的径向距离增加，角速度基本上减小，同时轨道扫描的线速度基本上增加。轨道可以分为以恒定角速度扫描的区域。对于至少两个相邻区域或最内侧和最外侧轨道的内部轨道，角速度随着径向距离的增加而减小到小于反向，而线速度随着径向距离的增加而成比例增加。

6. 发明授权

US5844865A System for storing and reproducing information from a disc shaped information carrier 失效
标题翻译：用于从盘形信息载体存储和再现信息的系统
公开(公告)号：US5844865A
公开(公告)日：1998-12-01
申请号：US629303
申请日：1996-04-08
申请人： Johannus L. Bakx
发明人： Johannus L. Bakx
IPC分类号： G11B7/007 , G11B19/00 , G11B19/20 , G11B19/24 , G11B19/28 , G11B20/10 , G11B20/12 , G11B21/10 , G11B27/10 , G11B27/13 , G11B27/19 , G11B27/24 , G11B27/28 , G11B27/30 , G11B7/00
CPC分类号： G11B27/24 , G11B19/00 , G11B19/20 , G11B19/24 , G11B19/28 , G11B20/10 , G11B20/1217 , G11B20/1258 , G11B27/13 , G11B27/3027 , G11B2220/20 , G11B2220/213 , G11B2220/218 , G11B2220/2525 , G11B2220/2545
摘要： The disclosed system includes a disc-shaped information carrier and an apparatus for reading and writing information blocks in a continuous track. For indicating the track, the information carrier has a servotrack in which a winding number is encoded per track winding. A winding number and an angular position can be determined from the address of an information block. The angular position is given relative to a reference angular position. This reference angular position is determined by one or more reference marks which are written on the information carrier prior to the first information block. The actual angular position is determined by counting the time relative to a known rotation time from the reading of a reference mark onwards. One or more pulses, for example tachopulses, are generated per revolution in the apparatus. The location of the reference angular position is determined relative to the pulses by reading a reference mark and, subsequently, the actual angular position can be derived from the pulses.
摘要翻译：所公开的系统包括盘形信息载体和用于在连续轨道中读取和写入信息块的装置。为了指示轨道，信息载体具有伺服轨迹，其中每个磁道绕组对绕组数进行编码。可以从信息块的地址确定绕组数和角位置。相对于参考角位置给出角位置。该参考角位置由在第一信息块之前写入信息载体上的一个或多个参考标记确定。实际的角位置是通过从相对于参考标记的读数开始计算相对于已知旋转时间的时间来确定的。在设备中每转一次产生一个或多个脉冲，例如刺眼脉冲。通过读取参考标记来确定参考角位置的位置，并且随后可以从脉冲导出实际的角位置。

7. 再颁专利

USRE38703E1 Device for scanning a disc-shaped information carrier with controlled changes in angular and linear velocities 有权
标题翻译：用于以受控角度和线速度的变化扫描盘形信息载体的装置
公开(公告)号：USRE38703E1
公开(公告)日：2005-02-15
申请号：US10167083
申请日：2002-06-12
申请人： Gheorghe S. Stan , Johannus L. Bakx
发明人： Gheorghe S. Stan , Johannus L. Bakx
IPC分类号： G11B15/46 , G11B19/00 , G11B19/20 , G11B19/24 , G11B19/26 , G11B19/28 , G11B20/10 , G11B20/12 , G11B27/13 , G11B27/30
CPC分类号： G11B19/20 , G11B19/00 , G11B19/24 , G11B19/26 , G11B19/28 , G11B20/10 , G11B20/1217 , G11B20/1258 , G11B27/13 , G11B27/3027 , G11B2220/20 , G11B2220/213 , G11B2220/218 , G11B2220/2525 , G11B2220/2545
摘要： For scanning a disc-shaped information carrier at a high average information rate with minimum access time, the angular velocity is decreased substantially as the radial distance to the scan location increases, while at the same time the linear velocity of track scanning increases substantially. The track may be divided into zones which are scanned with constant angular velocity. With respect to the inner tracks of at least two adjacent zones, or the innermost and the outermost tracks, the angular velocity decreases less than inversely with increase of radial distance, while the linear velocity increases less than proportionally with increase of radial distance.

8. 发明授权

US06700861B2 Optical disc and apparatus for scanning the optical disc 失效
标题翻译：用于扫描光盘的光盘和设备
公开(公告)号：US06700861B2
公开(公告)日：2004-03-02
申请号：US10349238
申请日：2003-01-22
申请人： Gijsbert J. Van Den Enden , Johannes H. M. Spruit , Johannus L. Bakx , Shoei Kobayashi , Masayuki Arai , Yoshiyuki Akiyama
发明人： Gijsbert J. Van Den Enden , Johannes H. M. Spruit , Johannus L. Bakx , Shoei Kobayashi , Masayuki Arai , Yoshiyuki Akiyama
IPC分类号： G11B700
CPC分类号： G11B7/007 , G11B7/00745
摘要： The invention relates to an optical disc for recording data at a constant density, so called CLV (Constant Linear Velocity) or at zoned CLV. The disc has headers distributed along the disc on regular angular positions, a so called CAV (Constant Angular Velocity) pattern subdividing the track in track portions for recording an amount of data proportional to the radial position of the track portion concerned. Address information included in the headers is provided at the data density, which is CLV. The apparatus comprises header detection means for detecting the headers at the CAV locations, and for recovering position information from the headers at CLV density. Data sectors do not start at headers and are not fitted regularly between the headers, but start and stop at arbitrary positions which are calculated from the known amounts of data recordable in the track portions.
摘要翻译：本发明涉及用于以恒定密度记录数据的光盘，即所谓的CLV（恒定线速度）或分区CLV。光盘具有沿着盘的规则角位置分配的头部，即所谓的CAV（恒定角速度）图案，其细分轨道部分中的轨迹，用于记录与相关轨道部分的径向位置成比例的数据量。标题中包含的地址信息是以CLV的数据密度提供的。该装置包括头部检测装置，用于检测CAV位置处的头部，并用于从CLV密度的头部恢复位置信息。数据扇区不在标题处开始，并且不能在标题之间定期地拟合，而是可以从在轨道部分中可记录的已知数据量计算出的任意位置开始和停止。

9. 发明授权

US6137755A Deriving a tracking error signal from a time difference between detector signals 失效
标题翻译：从检测器信号之间的时间差导出跟踪误差信号
公开(公告)号：US6137755A
公开(公告)日：2000-10-24
申请号：US062943
申请日：1998-04-20
申请人： Johannus L. Bakx , Anthonius L. J. Dekker
发明人： Johannus L. Bakx , Anthonius L. J. Dekker
IPC分类号： G11B7/09 , G11B7/00
CPC分类号： G11B7/0901
摘要： An apparatus for scanning an optically readable record carrier 1, in which a light beam modulated by the information marks in a track on the record carrier is incident on a detection unit with four detectors. A reliable tracking error signal based on time differences between detector signals, is obtained for high-density recording by comparing digitized signals of the detectors with a delayed signal Td generated by a delay unit and based on the digitized signals. The time differences between the detector signals result in length differences between pulses in the comparing signals A and B, which pulses have a nominal length of Td. The comparing signals A and B are low-pass filtered and combined to generate the tracking error signal TE.
摘要翻译：一种用于扫描光学可读记录载体1的装置，其中由记录载体上的轨道中的信息标记调制的光束入射到具有四个检测器的检测单元上。通过将检测器的数字化信号与由延迟单元产生的延迟信号Td和数字化信号进行比较，获得基于检测器信号之间的时间差的可靠的跟踪误差信号，用于高密度记录。检测器信号之间的时间差导致比较信号A和B中的脉冲之间的长度差，该脉冲具有标称长度Td。比较信号A和B被低通滤波并组合以产生跟踪误差信号TE。

10. 发明授权

US5418773A Zoned record carrier 失效
标题翻译：分区记录载体
公开(公告)号：US5418773A
公开(公告)日：1995-05-23
申请号：US86960
申请日：1993-07-02
申请人： Johannus L. Bakx , Paulus G. P. Weijenbergh , Karl A. Belser , Glen A. Jaquette , John E. Kulakowski , Judson A. McDowell , Rodney J. Means
发明人： Johannus L. Bakx , Paulus G. P. Weijenbergh , Karl A. Belser , Glen A. Jaquette , John E. Kulakowski , Judson A. McDowell , Rodney J. Means
IPC分类号： G11B7/007 , G11B11/105 , G11B19/02 , G11B20/12 , G11B21/08 , G11B27/30 , G11B7/00
CPC分类号： G11B19/02 , G11B11/10565 , G11B20/1258 , G11B21/083 , G11B27/3027 , G11B7/00745
摘要： A record carrier having essentially circular tracks concentrically located around a point of rotation. The record carrier is divided into circular zones each having m tracks, where m is an integer. Each track within a zone is subdivided into n sectors, where n is an integer which is constant per zone and which increases as the zone is more remote from the point of rotation. Each sector including a header portion and a data portion. The header portions in the radial direction in each zone are in line. In each zone the condition of m*n=j*k is satisfied, where is j an integer greater than or equal to 2 and is constant for each zone, and k is an integer.
摘要翻译：具有基本圆形轨道的记录载体，同心地位于旋转点周围。记录载体被分成圆形区域，每个区域具有m个轨道，其中m是整数。区域内的每个轨道被细分为n个扇区，其中n是每个区域恒定的整数，并且随着该区域距离旋转点更远，该扇区增加。每个扇区包括报头部分和数据部分。每个区域中的径向的头部部分成直线。在每个区域中，满足m * n = j * k的条件，其中j是大于或等于2的整数，并且对于每个区域是常数，并且k是整数。

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