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    • 11. 发明申请
    • MODULATION CODE SYSTEM AND METHODS OF ENCODING AND DECODING A SIGNAL
    • 调制码系统及编码和解码信号的方法
    • WO2005098851A1
    • 2005-10-20
    • PCT/IB2005/051093
    • 2005-04-01
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.HOLLMANN, Hendrik, D., L.BERGMANS, Johannes, W., M.
    • HOLLMANN, Hendrik, D., L.BERGMANS, Johannes, W., M.
    • G11B20/10
    • G11B20/10009G11B20/1426H03M5/145
    • The invention relates to a modulation code system and methods of encoding and decoding a signal to be used for data transmission or data storage. Such systems comprise an encoder (100) for transforming an original signal s into an encoded signal c satisfying predefined second constraints before said signal being transmitted via a channel (300). Such modulation code systems further comprise a decoder (200) for decoding the encoded signal c, after restoration, back into the original signal s. It is the object of the invention to improve such known systems and methods in such a way that they require less hardware. This object is achieved according to the invention in that the encoder (100) comprises a modulation encoder (110) transforming the original signal s into an intermediate signal t satisfying predefined first constraints and a transformer encoder (120) for transforming the intermediate signal t into the encoded signal c. The object is further achieved in such a way that the decoder (200) comprises a transformer decoder (220) for re-transforming the encoded signal c into said intermediate signal t and a modulation code decoder (210) for decoding that intermediate signal t into said original signal s.
    • 本发明涉及一种调制码系统和对要用于数据传输或数据存储的信号进行编码和解码的方法。 这样的系统包括编码器(100),用于在通过信道(300)传输所述信号之前将原始信号s变换为满足预定义的第二约束的编码信号c。 这种调制码系统还包括一个解码器(200),用于在恢复之后将编码信号c解码成原始信号s。 本发明的目的是改进这种已知的系统和方法,使得它们需要更少的硬件。 该目的是根据本发明实现的,因为编码器(100)包括调制编码器(110),其将原始信号s变换成满足预定义的第一约束的中间信号t和用于将中间信号t变换成 编码信号c。 该目的进一步实现,使得解码器(200)包括用于将编码信号c重新变换成所述中间信号t的变压器解码器(220)和用于将该中间信号t解码成 说原始信号。
    • 18. 发明申请
    • OPTICAL DISC DRIVE
    • 光盘驱动器
    • WO2005038786A2
    • 2005-04-28
    • PCT/IB2004/052143
    • 2004-10-19
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.BAKX, Johannus, L.
    • BAKX, Johannus, L.
    • G11B7/00
    • G01J1/4228G11B7/131G11B2007/0006
    • An optical system (30) comprises at least two optical detector units (60; 70), each optical detector unit (60; 70) comprising an array (61; 71) of detector segments (62a-d; 72a-d) and corresponding output terminals (63a-d; 73a-d) defining current outputs of the corresponding optical detector unit (60; 70). At least one current output (63a) of a first optical detector unit (60) is connected directly to a corresponding current output (73a) of a second optical detector unit (70) at an output node (80a). The optical system (30) further comprises a signal processing circuit (90) having its input terminals (91a-d) connected via corresponding lines (81 a-d) to corresponding output nodes (80a-d) of the optical detector system (35). To each of said lines (81a-d), a corresponding terminator resistor (82a-d) is connected.
    • 光学系统(30)包括至少两个光学检测器单元(60; 70),每个光学检测器单元(60; 70)包括检测器段(62a-d; 72a-d)的阵列(61; 71) 输出端子(63a-d; 73a-d),其限定对应的光学检测器单元(60; 70)的电流输出。 第一光学检测器单元(60)的至少一个电流输出(63a)直接连接到输出节点(80a)处的第二光学检测器单元(70)的对应电流输出(73a)。 光学系统(30)还包括信号处理电路(90),其信号处理电路(90)的输入端(91a-d)经由相应的线(81a-d)连接到光学检测器系统(35)的对应的输出节点(80a-d)。 对于每条所述线路(81a-d),连接相应的终端电阻器(82a-d)。