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    • 31. 发明申请
    • DEVICE FOR WRITING INFORMATION ONTO AN INFORMATION CARRIER
    • 将信息写入信息载体的设备
    • WO01039189A1
    • 2001-05-31
    • PCT/EP2000/010958
    • 2000-11-06
    • G11B7/00G11B7/0045G11B7/125G11B11/105G11B20/10G11B20/14H03K5/135
    • G11B7/126G11B7/0045G11B11/10506G11B20/10194G11B20/1426
    • A device according to the invention for writing information to an information carrier (1) includes conversion means (7) for converting symbols in an information signal (SINFO) into pulse sequences in a control signal (STR). The device further includes a transducer (10) for generating a physically detectable pattern on the information carrier (1) in response to the control signal (STR). The conversion means (7) include assignment means (702) for assigning properties of the pulse sequences to symbols in the information signal (SINFO). These properties include the duration and the magnitude of pulses in the pulse sequence. The conversion means (7) further include at least one counter (711) for supplying a count signal (TC1) after a time interval, which counter is coupled to the assignment means (702). The conversion means (7) further include a controllable delay line (761) coupled to the at least one counter (711), for delaying the count signal (TC1), and to the assignment means (702).
    • 根据本发明的用于将信息写入信息载体(1)的装置包括用于将信息信号(SINFO)中的符号转换为控制信号(STR)中的脉冲序列的转换装置(7)。 该装置还包括用于响应于控制信号(STR)在信息载体(1)上产生物理可检测图案的换能器(10)。 转换装置(7)包括用于将脉冲序列的属性分配给信息信号(SINFO)中的符号的分配装置(702)。 这些属性包括脉冲序列中脉冲的持续时间和幅度。 转换装置(7)还包括用于在时间间隔之后提供计数信号(TC1)的至少一个计数器(711),该计数器耦合到分配装置(702)。 转换装置(7)还包括耦合到至少一个计数器(711)的可控延迟线(761),用于延迟计数信号(TC1)和分配装置(702)。
    • 32. 发明申请
    • DEVICE FOR REPRODUCING A DIGITAL INFORMATION SIGNAL AND METHOD
    • 用于复制数字信息信号和方法的设备
    • WO01037279A1
    • 2001-05-25
    • PCT/EP2000/010999
    • 2000-11-02
    • G11B20/10G11B20/14H03M5/14H03M7/14H03M13/31
    • H03M13/31G11B20/14G11B20/1426H03M5/14H03M5/145
    • The invention relates to a device for reproducing a digital information signal from a channel signal. The digital information signal is runlength limited with one or more constraints. The device comprises receiving means for receiving the channel signal (31) and means (34,35) for comparing a detected runlength (34) with a predetermined value (35) indicative of a minimum runlength constraint or a maximum runlength constraint of the channel signal and for generating a control signal when the detected runlength violates said constraint. The device further comprises substitute means (37) for in response to the control signal deleting or inserting an element in the channel signal. The invention further relates to a method for reproducing the digital information signal from the channel signal.
    • 本发明涉及一种用于从信道信号再现数字信息信号的装置。 数字信息信号是由一个或多个约束限制的游程长度。 该装置包括用于接收信道信号(31)的接收装置和用于将检测到的游程长度(34)与指示信道信号的最小游程长度约束或最大游程长度约束的预定值(35)进行比较的装置(34,35) 并且用于当检测到的游程长度违反所述约束时产生控制信号。 该装置还包括用于响应于控制信号删除或插入信道信号中的元素的替代装置(37)。 本发明还涉及从信道信号再现数字信息信号的方法。
    • 33. 发明申请
    • METHOD AND DEVICE FOR RECORDING INFORMATION IN UNITS
    • 用于记录单位信息的方法和装置
    • WO00063908A1
    • 2000-10-26
    • PCT/EP2000/002791
    • 2000-03-29
    • G11B20/10G11B7/00G11B7/0045G11B20/12G11B20/14G11B27/00G11B27/30
    • G11B20/1426G11B20/1217G11B27/3027G11B2020/1277G11B2020/1287G11B2020/1292G11B2220/216G11B2220/218G11B2220/2545G11B2220/2562G11B2220/90
    • A method and device for recording information in units on a partly recorded writable record carrier (11), e.g. an optical disc. The information is recorded in a track represented by series of marks of different runlengths between a minimum runlength and a maximum runlength and synchronizing patterns of marks, which patterns do not occur in the series of marks and comprise at least one long mark of at least the maximum runlength. At least one information unit is encoded into a modulated signal comprising signal elements corresponding to said marks. The track is scanned up to a link position before a selected one of said addressable locations, and the modulated signal is recorded from the link position. The modulated signal is provided at the begin and/or at the end with a link signal element corresponding to a mark of at most the minimum runlength.
    • 一种在部分记录的可写记录载体(11)上以单元记录信息的方法和装置,例如, 光盘。 信息被记录在由最小游程长度和最大游程长度之间的不同游程长度的一系列标记表示的轨道中,并且同步标记模式,该模式不在该系列标记中出现,并且包括至少一个长标记 最大游程长度。 至少一个信息单元被编码成包括对应于所述标记的信号元素的调制信号。 在所选择的所述可寻址位置之前,将轨道扫描到链接位置,并且从链接位置记录调制信号。 调制信号在开始和/或结束处以对应于至多最小游程长度的标记的链接信号元素提供。
    • 34. 发明申请
    • ADAPTIVE AND SELECTIVE LEVEL CONDITIONING OF A READ CHANNEL IN STORAGE TECHNOLOGIES
    • 存储技术中阅读通道水平的自适应选择性调节
    • WO00000971A3
    • 2000-04-13
    • PCT/IB1999/001085
    • 1999-06-10
    • G11B20/10G11B20/14
    • G11B20/10203G11B20/10037G11B20/1426
    • A method, circuit and system for selectively and adaptively effecting level conditioning of selected samples of a read signal in storage technologies. A circuit embodying the present invention includes sample logic, arithmetic logic and conditioning logic. The sample logic receives samples and provides a main sample and one or more selected neighbor samples. The arithmetic logic compares the main sample to the neighbor samples toward determining satisfaction of selected conditioning criteria. If the selected conditioning criteria are satisfied, the conditioning logic selectively and adaptively effects level conditioning as to the main sample. A method embodying the present invention comprises obtaining level conditioning parameters in association with a reference field of the read signal; sampling the read signal at channel bit locations to provide a plurality of samples; selecting a main sample from the plurality of samples; selecting one or more neighbor samples from the plurality of samples, the neighbor samples being disposed at predetermined distances, in channel bits, from the main sample; comparing the main sample to each of the neighbor samples to determine satisfaction of selected conditioning criteria; applying, where the selected conditioning criteria are determined to be satisfied, level conditioning to the main sample, such level conditioning being responsive to the level conditioning parameters.
    • 一种用于在存储技术中选择性地且自适应地调节读取信号的选定样本的方法,电路和系统。 本发明的电路包括接收样本并产生主样本和一个或多个所选相邻样本的逻辑。 算术逻辑将主样本与邻近样本进行比较以确定所选包装标准的满意度。 如果所选的调节标准令人满意,则调节逻辑选择性地且自适应地执行主要样本的水平调节。 一种获得与读信号的参考域相关联的电平调节参数的方法; 对信道的比特位置处的读取信号进行采样以获得多个采样; 从所述多个样本中选择主要样本; 从所述多个样本中选择一个或多个相邻样本,这些相邻样本被排列在距所述主样本的信道比特中的预定距离处; 将主样本与每个相邻样本进行比较以确定所确定的调理标准的满意度; 当确定要满足的水平的调节标准时,适用于对主要样品水平的调节,这种调节水平对调节参数敏感。
    • 36. 发明申请
    • EFFICIENT RUN LENGTH LIMITED CODE WITH SHORT INTERLEAVED CONSTRAINT
    • 有效运行长度有限公司代码与短期约束
    • WO99067784A1
    • 1999-12-29
    • PCT/US1999/013126
    • 1999-06-10
    • G11B20/14H03M7/14H03M5/14
    • G11B20/1426
    • Encoder (150) divides successive data words (152) into first and second portions. The first portion of each successive data word (152) is mapped into a corresponding first code pattern and a corresponding state variable according to a selected code. A second portion of each successive data word (152) is mapped into a corresponding second code pattern that is associated with the state variable, according to the selected code. The first and second code patterns are combined to form each of the successive code words (153), which are concatenated to form an encoded bit stream having a plurality of bit positions. The encoder imposes constraints on the selected code such that the encoded bit stream has a maximum of seven consecutive same binary symbols in adjacent ones of the plurality of bit positions and a maximum of five consecutive same binary symbols in every other one of the plurality of bit positions.
    • 编码器(150)将连续的数据字(152)分成第一和第二部分。 每个连续数据字(152)的第一部分根据所选择的代码映射到对应的第一代码模式和对应的状态变量。 根据所选择的代码,每个连续数据字(152)的第二部分被映射到与状态变量相关联的相应的第二代码模式中。 第一和第二代码模式被组合以形成连续的代码字(153)中的每一个,其被级联以形成具有多个位位置的编码比特流。 编码器对所选择的代码施加约束,使得编码的比特流在多个比特位置中的相邻的比特位置中具有最多七个连续相同的二进制符号,并且多个比特中的每一个中的最多五个连续相同的二进制符号 位置。
    • 37. 发明申请
    • SIGNAL SPACE DETECTOR FOR CHANNELS UTILIZING A CODE HAVING TIME VARYING CONSTRAINTS
    • 使用具有时间变化约束的代码的信道的信号空间检测器
    • WO9852287A3
    • 1999-07-22
    • PCT/US9809752
    • 1998-05-13
    • SEAGATE TECHNOLOGY
    • SHAFIEE HAMID RRUB BERNARDO
    • G11B20/10G11B20/14H03M5/14H03M13/31H04B3/46
    • G11B20/1426G11B20/10009H03M5/145H03M13/31
    • Data is detected from a disc (112) in a disc drive (110) and provided as a sampled read signal including data samples provided in a plurality of time intervals. A signal space detector (320) includes a first detector (322) and a second detector (324) and is configured to detect the data, wherein the data is encoded according to a code having a time varying maximum transition run constraint which varies between a first and a second constraint over a plurality of time intervals. The detector (320) is configured to receive an input sample including a first plurality of terms indicative of one of a plurality of possible data symbols. One of the plurality of possible data symbols is eliminated based on the first constraint when the input sample then being detected is constrained by the first constraint, to provide a second plurality of remaining possible data symbols. An estimated data value is determined which corresponds to the input sample then being detected, by determining which of the second plurality of remaining possible data symbols is within a predetermined range of the input symbol.
    • 从盘驱动器(110)中的盘(112)检测数据,并将其提供为包括以多个时间间隔提供的数据样本的采样读信号。 信号空间检测器(320)包括第一检测器(322)和第二检测器(324),并且被配置为检测数据,其中根据具有随时间变化的最大过渡运行约束的代码对数据进行编码,该代码在 在多个时间间隔上的第一和第二约束。 检测器(320)被配置为接收包括指示多个可能数据符号之一的第一多个项的输入样本。 当所检测的输入样本被第一约束约束时,基于第一约束消除多个可能数据符号中的一个,以提供第二多个剩余可能的数据符号。 通过确定第二多个剩余可能数据符号中的哪一个在输入符号的预定范围内,确定对应于被检测的输入样本的估计数据值。