公开(公告)号：WO2005034103A3

公开(公告)日：2005-08-25

申请号：PCT/IB2004051891

申请日：2004-09-28

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  HEERTJES MARCEL F ,  CREMERS FRANCISCUS L M ,  SPERLING FRANK B ,  LEENKNEGT GEORGE A L ,  RUMPF HORST

Inventor： HEERTJES MARCEL F ,  CREMERS FRANCISCUS L M ,  SPERLING FRANK B ,  LEENKNEGT GEORGE A L ,  RUMPF HORST

IPC: G11B7/09

CPC classification number: G11B7/0948 ,  G11B7/0941 ,  G11B7/0946

Abstract: A method is described for controlling an optical disc drive apparatus (1) of a type comprising: scanning means (30) for scanning a record track of an optical disc (2) and for generating a read signal (SR); actuator means (50) for controlling the positioning of at least one read/write element (34) of said scanning means (30) with respect to the disc (2); a control circuit (90) for receiving said read signal (SR) and generating at least one actuator control signal (SCR) on the basis of at least one signal component of said read signal (SR), the control circuit (90) having at least one variable control parameter. The method comprises the steps of: deriving from said read signal (SR) at least two signals (REn; MIRn) of mutually different type; and varying the setting of said at least one variable control parameter as a function of said at least two signals. An other method is described for discriminating two kinds of disturbances originated by a) disc defects, b) schocks.

Abstract translation: 描述了一种用于控制一种类型的光盘驱动装置（1）的方法，包括：扫描装置（30），用于扫描光盘的记录轨道并产生读取信号（SR）; 用于控制所述扫描装置（30）相对于所述盘（2）的至少一个读/写元件（34）的定位的致动器装置（50）。 控制电路（90），用于接收所述读取信号（SR）并且基于所述读取信号（SR）的至少一个信号分量产生至少一个致动器控制信号（SCR），所述控制电路（90）具有 至少一个变量控制参数。 该方法包括以下步骤：从所述读信号（SR）导出至少两个相互不同类型的信号（REn; MIRn）; 以及根据所述至少两个信号改变所述至少一个可变控制参数的设置。 描述了一种用于区分由a）盘缺陷，b）sc ances发生的两种扰动的方法。

公开(公告)号：WO2005034103A2

公开(公告)日：2005-04-14

申请号：PCT/IB2004/051891

申请日：2004-09-28

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  HEERTJES, Marcel, F. ,  CREMERS, Franciscus, L., M. ,  SPERLING, Frank, B. ,  LEENKNEGT, George, A., L. ,  RUMPF, Horst

Inventor： HEERTJES, Marcel, F. ,  CREMERS, Franciscus, L., M. ,  SPERLING, Frank, B. ,  LEENKNEGT, George, A., L. ,  RUMPF, Horst

IPC: G11B7/00

CPC classification number: G11B7/0948 ,  G11B7/0941 ,  G11B7/0946

Abstract: A method is described for controlling an optical disc drive apparatus (1) of a type comprising: scanning means (30) for scanning a record track of an optical disc (2) and for generating a read signal (SR); actuator means (50) for controlling the positioning of at least one read/write element (34) of said scanning means (30) with respect to the disc (2); a control circuit (90) for receiving said read signal (S R ) and generating at least one actuator control signal (SCR) on the basis of at least one signal component of said read signal (S R ), the control circuit (90) having at least one variable control parameter. The method comprises the steps of: deriving from said read signal (SR) at least two signals (REn; MIRn) of mutually different type; and varying the setting of said at least one variable control parameter as a function of said at least two signals.

Abstract translation: 描述了一种用于控制一种类型的光盘驱动装置（1）的方法，包括：扫描装置（30），用于扫描光盘的记录轨道并产生读取信号（SR）; 用于控制所述扫描装置（30）相对于所述盘（2）的至少一个读/写元件（34）的定位的致动器装置（50）。 控制电路（90），用于接收所述读取信号（SR）并且基于所述读取信号（SR）的至少一个信号分量产生至少一个致动器控制信号（SCR），所述控制电路（90）具有 至少一个变量控制参数。 该方法包括以下步骤：从所述读信号（SR）导出至少两个相互不同类型的信号（REn; MIRn）; 以及根据所述至少两个信号改变所述至少一个可变控制参数的设置。

公开(公告)号：WO2005024808A1

公开(公告)日：2005-03-17

申请号：PCT/IB2004/051694

申请日：2004-09-06

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  COOLEN, Rob, J., M. ,  CREMERS, Franciscus, L., M. ,  LEENKNEGT, George, A., L. ,  HEERTJES, Marcel, F.

Inventor： COOLEN, Rob, J., M. ,  CREMERS, Franciscus, L., M. ,  LEENKNEGT, George, A., L. ,  HEERTJES, Marcel, F.

IPC: G11B7/09

CPC classification number: G11B21/106 ,  G11B5/5582 ,  G11B7/0946 ,  G11B19/04

Abstract: A method is described for detecting a mechanical shock in a disc drive apparatus (1) of a type comprising: scanning means (30) for scanning record tracks of a disc (2) and for generating a read signal (S R ); actuator means (50) for controlling the positioning of at least one read/write element (34) of said scanning means; a control circuit (90) for receiving said read signal (S R ), deriving at least one error signal (RE) from said read signal, and generating at least one actuator control signal (S CR ) on the basis of said error signal. The method comprises the steps of: -determining a shock sensitivity function (S SHOCK ) which describes the relationship between shocks (OExT) and said error signal; determining or at least approximating an inverse shock sensitivity function (S-1 SHOCK ) as the inverse of said shock sensitivity function (S SHOCK ); - and applying said inverse shock sensitivity function (S1- SHOCK ) on said error signal.

Abstract translation: 描述了一种用于检测盘驱动装置（1）中的机械冲击的方法，包括：扫描装置（30），用于扫描盘（2）的记录轨道并产生读信号（SR）; 用于控制所述扫描装置的至少一个读/写元件（34）的定位的致动装置（50） 用于接收所述读取信号（SR）的控制电路（90），从所述读取信号中导出至少一个误差信号（RE），并且基于所述误差信号产生至少一个致动器控制信号（SCR）。 该方法包括以下步骤： - 确定描述冲击（OExT）与所述误差信号之间关系的冲击敏感函数（SSHOCK）; 确定或至少近似反冲击敏感度函数（S-1SHOCK）作为所述冲击敏感度函数（SSHOCK）的倒数; 并且对所述误差信号应用所述反冲击灵敏度函数（S1-SHOCK）。

公开(公告)号：WO2004059649A1

公开(公告)日：2004-07-15

申请号：PCT/IB2003/005731

申请日：2003-12-04

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  OTTE, Rob ,  COMPTER, Johan, C. ,  CREMERS, Franciscus, L., M.

Inventor： OTTE, Rob ,  COMPTER, Johan, C. ,  CREMERS, Franciscus, L., M.

IPC: G11B21/02

CPC classification number: G11B7/08517 ,  G11B7/08511 ,  G11B7/0941 ,  G11B7/0946 ,  G11B21/02

Abstract: An actuator driver circuit comprises a drive signal source (60) and an electrical damping element (100) having a negative resistance connected in series with the drive signal source (60). A controllable switch is provided for selectively switching said electrical damping element (100) into or out of a signal path from a drive signal source output to a driver circuit output, in order to selectively amend the electrical damping of an actuator, especially to increase the electrical damping of a radial actuator or a focus actuator of an optical disc drive in case of loss of track or loss of focus, respectively.

Abstract translation: 致动器驱动器电路包括具有与驱动信号源（60）串联连接的负电阻的驱动信号源（60）和电阻尼元件（100）。 提供可控开关，用于选择性地将所述电阻尼元件（100）从驱动信号源输出切换到驱动电路输出到信号路径，以便选择性地修改致动器的电阻尼，特别是增加 分别在丢失轨道或失去焦点的情况下，光盘驱动器的径向致动器或聚焦致动器的电阻尼。