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1. 发明专利

JP2005176360A Recording and/or reproducing apparatus for optical recording media having means for increasing resolution of digital-to-analog converter in servo regulating circuit 审中-公开
标题翻译：用于在伺服电机中增加数字到模拟转换器分辨率的手段的光记录介质的记录和/或再现装置
公开(公告)号：JP2005176360A
公开(公告)日：2005-06-30
申请号：JP2004351170
申请日：2004-12-03
申请人： Thomson Licensing Sa , トムソンライセンシングソシエテアノニムThomson Licensing S.A.
发明人： FECHNER MANFRED
IPC分类号： G11B20/10 , H03M1/66 , H03M1/68
CPC分类号： H03M1/68 , H03M1/66
摘要： PROBLEM TO BE SOLVED: To increase the resolution of a digital-to-analog converter in a servo regulating circuit of a recording and/or reproducing apparatus for optical recording media at low cost without changing a bit width of the digital-to-analog converter.
SOLUTION: A method and a circuit arrangement are provided by means of which less significant bits (L) of a digital data source (DD) is quantized using a pulse density method or a pulse width method, and the quantization result is added to the value of high order bits (H) of the digital data source (DD) with the exception of the maximum value of the high order bits (H).
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了在低成本的情况下提高用于光学记录介质的记录和/或再现装置的伺服调节电路中的数模转换器的分辨率，而不改变数字到 -analog转换器。解决方案：提供一种方法和电路装置，通过该方法和电路装置，使用脉冲密度法或脉冲宽度方法对数字数据源（DD）的较低有效位（L）进行量化，并且将量化结果相加除了高阶位（H）的最大值之外的数字数据源（DD）的高位（H）的值。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2004335090A Reproduction or recording appliance for optical recording medium having inclination control system 有权
标题翻译：具有内插控制系统的光记录介质的记录或记录设备
公开(公告)号：JP2004335090A
公开(公告)日：2004-11-25
申请号：JP2004136512
申请日：2004-04-30
申请人： Thomson Licensing Sa , トムソンライセンシングソシエテアノニムThomson Licensing S.A.
发明人： FECHNER MANFRED
IPC分类号： G11B7/09 , G11B7/005 , G11B7/095
CPC分类号： G11B7/0956 , G11B7/0053 , G11B7/0925
摘要： PROBLEM TO BE SOLVED: To provide reproduction and recording appliances for an optical recording medium which is provided with an inclination control system that sufficiently eliminates the defects without using an additional inclination sensor and can be realized at a low cost.
SOLUTION: A lower envelope curve signal representing the dark value of a detected high frequency signal, of the high frequency signal detected from the optical recording medium is used for inclination control.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种光学记录介质的再现和记录装置，该设备具有在不使用额外的倾斜传感器的情况下充分消除缺陷的倾斜控制系统，并且可以以低成本实现。解决方案：表示从光记录介质检测的高频信号的检测到的高频信号的暗值的下包络线信号用于倾斜控制。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

DE602006004496D1 未知
公开(公告)号：DE602006004496D1
公开(公告)日：2009-02-12
申请号：DE602006004496
申请日：2006-03-21
申请人： THOMSON LICENSING SA
发明人： FECHNER MANFRED
IPC分类号： G11B7/09
摘要： The present invention relates to a method for correcting the operating point of a focus control loop (12) for a scanner for optical storage media (6). According to the invention, the method comprises the steps of: - extracting (20) from a focus error signal (FE) a signal component caused by verticle wobble of the optical storage medium (6); - integrating (22) the extracted signal component; and - correcting (23) the operating point with the aid of the integrated signal.

4. 发明专利

PL371531A1 METHOD FOR INCREASING RESOLUTION OF DIGITAL-TO-ANALOGUE CONVERTER IN THE RECORDING AND/OR REPRODUCING DEVICE FOR OPTICAL DATA CARRIER EMPLOYING THIS METHOD 未知
公开(公告)号：PL371531A1
公开(公告)日：2005-06-13
申请号：PL37153104
申请日：2004-12-03
申请人： THOMSON LICENSING SA
发明人： FECHNER MANFRED
IPC分类号： G11B20/10 , H03M1/66 , H03M1/68 , G11B7/004
摘要： In order to increase the resolution or precision of a digital-to-analog converter (DA), a method and a circuit arrangement are provided by means of which less significant bits (L) of the digital data source (DD) are quantized and the quantization result is added to the value of more significant bits (H) of the digital data source (DD) with the exception of the maximum value of the more significant bits (H) for the purpose of increasing the resolution of the output signal of the digital-to-analog converter (DA). The application of the invention is provided in particular for regulating circuits in which the bit width is greater than that of the digital-to-analog converter (DA).

5. 发明专利

MY137931A REPLAY OR RECORDING APPLIANCE FOR OPTICAL RECORDING MEDIA HAVING AN INCLINATION CONTROL SYSTEM 未知
公开(公告)号：MY137931A
公开(公告)日：2009-03-31
申请号：MYPI20041594
申请日：2004-04-29
申请人： THOMSON LICENSING SA
发明人： FECHNER MANFRED
IPC分类号： G11B7/09 , G11B7/005 , G11B7/095
摘要： THE INVENTION RELATES TO A METHOD AND AN ARRANGEMENT FOR A REPLAY OR RECORDING APPLIANCE FOR OPTICAL RECORDING MEDIA HAVING AN INCLINATION CONTROL SYSTEM (TIER) FOR VERTICAL ALIGNMENT OF THE SCANNING BEAM WITH RESPECT TO OPTICAL RECORDING MEDIA. IN ORDER TO EXCLUDE OTHER FACTORS WHICH, IN ADDITION TO THE INCLINATION OF THE SCANNING BEAM, INFLUENCE THE RADIO-FREQUENCY SIGNAL (HF) WHICH IS DETECTED BY THE RECORDING MEDIUM (OD), WITHOUT ANY ADDITIONAL INCLINATION SENSORS FROM THE DISADVANTAGEOUS INFLUENCE OF THE INCLINATION CONTROL, AN INCLINATION CONTROL SYSTEM IS PROVIDED WHICH USES THE LOWER ENVELOPE CURVE SIGNAL OF A RADIO-FREQUENCY SIGNAL WHICH IS DETECTED BY THE OPTICAL RECORDING MEDIUM AND REPRESENTS THE DARK VALUE OF THE DETECTED RADIO-FREQUENCY SIGNAL. THE LOWER ENVELOPE CURVE SIGNAL IS MULTIPLIED UPSTREAM OF AN INCLINATION CONTROL SYSTEM BY A MODULATION SIGNAL IS MULTIPLIED UPSTREAM OF AN INCLINATION CONTROL SYSTEM BY A MODULATION SIGNAL (MO) WHICH IS ADDED TO THE OUTPUT SIGNAL FROM THE INCLINATION CONTROLLER FOR VERTICAL ALIGNMENT OF THE SCANNING BEAM WHICH IS DIRECTED AT THE OPTICAL RECORDING MEDIUM. THE ENVELOPE CURVE SIGNAL (lo) WHICH IS, FOR EXAMPLE, THE MIRROR SIGNAL IS MULTIPLIED BY THE MODULATION SIGNAL AND IS INTEGRATED OR LOW-PASS FILTERED IN ORDER TO FORM A CONTROL ERROR, WHICH CORRESPONDS TO AN ERROR BETWEEN THE SCANNING BEAM,WHICH IS DIRECTED AT THE OPTICAL RECORDING MEDIUM, AND THE VERTICAL.THE INVENTION IS INTENDED TO BE USED FOR REPLAY OR RECORDING APPLIANCES FOR OPTICAL RECORDING MEDIA WITH INCLINATION CONTROL.

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