会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Reading device with cross-talk correction of two signal trains
    • 阅读器具有两路信号串的串扰校正功能
    • US5703845A
    • 1997-12-30
    • US559319
    • 1995-11-15
    • Michel AudoinBertrand MoreauJoseph Colineau
    • Michel AudoinBertrand MoreauJoseph Colineau
    • G11B20/10G11B5/49G11B13/04G11B15/12G11B7/00
    • G11B5/4992G11B15/12
    • A reading head has odd and even elemental areas for reading corresponding odd and even information segments that alternate to make up a frame of information on a record medium. The odd elemental areas provide a train of sequential odd information segments, each odd segment having cross-talk associated with the neighboring even segments which are on either side thereof when it is read from the record medium. Similarly, the even elemental areas provide a train of even information segments, each even segment having cross-talk associated with the odd segments which neighbored it on either side when it is read from the record medium. To correct for such cross-talk in both signal trains, both are fed to each of two cross-talk correcting circuits. These circuits derive needed adjacent segment information as to the cross-talk producing adjacent segments from one of the trains being fed thereto so as to process the segments of the other train being fed thereto for cross-talk correction.
    • 读头具有用于读取对应的奇数和偶数信息段的奇数和偶数元素区域,以替代以构成记录介质上的信息帧。 奇元素区域提供一系列连续的奇数信息段,当从记录介质读取时,每个奇数段具有与相邻偶数段相关联的串扰,这些相邻偶数段在其任一侧。 类似地,偶数元素区域提供一系列均匀的信息段,每个偶数段具有与从记录介质读取时在任一侧相邻的奇数段相关联的串扰。 为了纠正这两个信号串中的这种串扰,两个馈送到两个串扰校正电路中的每一个。 这些电路得到所需的相邻段信息,以便从馈送到其中的列车之一产生相邻段的串扰,以便处理馈送到其中的其它列的段以用于串扰校正。
    • 5. 发明申请
    • Laser Device Comprising Means for Controlling the Phase of a Large Number of Coherent Sources
    • 激光装置包括用于控制大量相干源的相位的装置
    • US20090316734A1
    • 2009-12-24
    • US12487504
    • 2009-06-18
    • Jean-Pierre HuignardCindy BellangerArnaud BrignonJoseph Colineau
    • Jean-Pierre HuignardCindy BellangerArnaud BrignonJoseph Colineau
    • H01S3/30
    • H01S3/06754H01S3/10053H01S3/2308H01S3/2383
    • The invention relates to a laser device comprising a number of fibre amplifiers (3) delivering a number of optical waves, which is supplied by an oscillator (1) that delivers a signal wave, characterized in that said device comprises: a coherent source (4) emitting a coherent wave at a wavelength approximately equal to that of the signal wave and the propagation direction of which is inclined to the propagation direction of the optical waves output by the fibre amplifiers; means for making the coherent wave interfere with the optical waves output by the fibre amplifiers, and generating an interferogram consisting of an array of fringes; interferogram detection means (7), the relative positions of the fringes transcribing an inter-fibre phase law; a spatial phase modulator (2); and processing/display means (6) for processing the detected phase law and for displaying it on the spatial modulator, said spatial modulator being positioned so as to be able to be read by the signal wave and thus generate a phase-modulated signal wave selectively at each of the fibre amplifiers, compensating for the phase shifts induced by said fibre amplifiers.
    • 本发明涉及一种包括多个光纤放大器(3)的激光装置,该多个光纤放大器(3)由传送信号波的振荡器(1)提供,其特征在于所述装置包括:相干光源(4) )发射波长近似等于信号波的相干波,其传播方向与由光纤放大器输出的光波的传播方向倾斜; 用于使相干波干扰由光纤放大器输出的光波的装置,以及产生由条纹阵列组成的干涉图; 干涉图检测装置(7),条纹转录纤维间相位定律的相对位置; 空间相位调制器(2); 以及处理/显示装置(6),用于处理所检测的相位定律并将其显示在空间调制器上,所述空间调制器被定位成能够被信号波读取,从而选择性地产生相位调制的信号波 在每个光纤放大器中,补偿由所述光纤放大器引起的相移。
    • 6. 发明授权
    • Process for reading information
    • 读取信息的过程
    • US5963525A
    • 1999-10-05
    • US750798
    • 1996-12-20
    • Michel AudoinCharaf HannaJoseph ColineauMario De Vito
    • Michel AudoinCharaf HannaJoseph ColineauMario De Vito
    • G11B20/14G11B5/49G11B7/00G11B7/005G11B11/10G11B11/105G11B20/10G11B20/20
    • G11B11/10515G11B11/10547G11B20/10527G11B5/4969G11B20/20
    • A process for reading binary information written on a carrier. The carrier has at least one track and the binary information is written onto the carrier at a frequency Fbit. The process includes the step of reading binary information at the sampling frequency F.sub.e to form a succession of successive read samples SAM(k) of the same track. SAM(k) is the read sample of order k, each read sample having a phase .phi.(k) lying between 0 and 2.pi.. The method further includes a step of interpolating to make it possible to calculate an interpolated sample I(k) with phase equal to .pi. which corresponds to read sample SAM(k) on the basis of the read sample and on the i+j read samples which bracket the original read sample SAM(k) such that:I(k)=a.sub.k-i SAM(k-i)+ . . . +a.sub.k SAM(k)+ . . . +a.sub.k+j SAM(k+j)The coefficients have values which depend on the chosen law of interpolation and a step of validation makes it possible to generate an information item intended to validate or invalidate the interpolated sample. The process is especially useful for the reading of binary information written on a large number of tracks.
    • PCT No.PCT / FR96 / 00601 Sec。 371日期1996年12月20日第 102(e)日期1996年12月20日PCT PCT 1996年4月19日PCT公布。 WO96 / 33490 PCT公开 日期1996年10月24日读取在载体上写入二进制信息的过程。 载波具有至少一个轨道,二进制信息以频率Fbit写入载波。 该处理包括以采样频率Fe读取二进制信息以形成相同轨道的连续读取样本SAM(k)的一系列的步骤。 SAM(k)是阶数k的读取样本,每个读取样本具有位于0和2π之间的相位phi(k)。 该方法还包括一个内插步骤,使得有可能根据读取的样本和i + j个读取样本,计算相位等于对应于读取样本SAM(k)的pi的内插样本I(k) 其包含原始读取样本SAM(k),使得:I(k)= ak-i SAM(ki)+。 。 。 + ak SAM(k)+。 。 。 + ak + j SAM(k + j)系数具有取决于所选择的内插定律的值,并且验证步骤使得可以生成旨在验证或使内插样本无效的信息项。 该过程对于读取写在大量轨道上的二进制信息特别有用。