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
    • 74. 发明专利
    • Signal adjusting method and adaptive equalizer
    • 信号调整方法和自适应均衡器
    • JP2008022537A
    • 2008-01-31
    • JP2007143825
    • 2007-05-30
    • Fujitsu Ltd富士通株式会社
    • HIDAKA YASUO
    • H04B3/06H04B3/04H04B3/10H04L25/03
    • H04L25/063H04L25/03885
    • PROBLEM TO BE SOLVED: To make an amount of compensation applied to an equalizer match the level of attenuation caused by its medium as closely as possible, and to keep output characteristics of a signal consistently independently of a specified path used for the communication of the signal. SOLUTION: At least one of loss compensation for frequency-dependent distortion and offset compensation for DC-offset distortion is applied to a data signal before or after the distortion occurs to generate an output signal. Each data value comprises either a high value or a low value based on the sampling of the output signal, and the error value indicates the residue of the distortion. The method includes a step for selecting one or more filter patterns from a set of a plurality of filter patterns, and monitoring the output signal for one or more patterns of data values corresponding to the one or more selected filter patterns. The method further includes a step for detecting a pattern of data values in the output signal corresponding to one of the one or more selected filter patterns. The method also includes a step for adjusting the at least one of the loss compensation and the offset compensation applied to the data signal on the basis of the error value. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了使均衡器的补偿量尽可能接近由其介质引起的衰减水平,并且保持信号的输出特性一致地独立于用于通信的指定路径 的信号。 解决方案:在发生失真之前或之后,将数据信号应用于DC偏移失真的频率相关失真和偏移补偿的损耗补偿中的至少一个以产生输出信号。 每个数据值基于输出信号的采样包括高值或低值,误差值表示失真的残差。 该方法包括从多个滤波器图案的集合中选择一个或多个滤波器图案的步骤,以及监视与一个或多个所选滤波器图案对应的一个或多个数据值模式的输出信号。 该方法还包括一个步骤,用于检测对应于一个或多个所选滤波器模式之一的输出信号中的数据值的模式。 该方法还包括基于误差值来调整施加到数据信号的损耗补偿和偏移补偿中的至少一个的步骤。 版权所有(C)2008,JPO&INPIT
    • 75. 发明专利
    • Interface for serial transfer
    • 接口用于串行传输
    • JP2007151044A
    • 2007-06-14
    • JP2005346223
    • 2005-11-30
    • Fujitsu Ltd富士通株式会社
    • SASAKI MANABU
    • H04L25/03H04B3/06H04L7/00
    • H04L7/04H04L7/044H04L7/046H04L25/03834H04L25/03885
    • PROBLEM TO BE SOLVED: To provide an interface for serial transfer which realizes stable and high-quality signaling even in occurrence of environmental change or variance in characteristic due to an LSI process. SOLUTION: The interface for the serial transfer is provided with at least a signal waveform correction part 11 which corrects deformation of a signal waveform, a latch part 12 which latches the signal waveform according to a synchronous clock and outputs it to a poststage circuit, a filter characteristic regulation part 13 which changes the filter characteristic of the signal waveform correction part 11 in a predetermined range, a clock generating part 14 which generates the synchronous clock having a desired phase, and a pattern determing part 15 which performs detection of a test pattern, and controlling of the filter characteristic regulation part 13 and the clock generating part 14. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提供用于串行传送的接口,即使在由于LSI处理而导致的环境变化或特性变化的情况下也能实现稳定和高质量的信令。 解决方案:用于串行传输的接口至少提供一个校正信号波形变形的信号波形校正部分11,锁存部分12根据同步时钟锁存信号波形并将其输出到后级 将信号波形校正部11的滤波特性改变为规定范围的滤波器特性调整部13,产生具有期望相位的同步时钟的时钟生成部14以及进行检测的图形判定部15 测试图案,以及滤波器特性调节部分13和时钟产生部分14的控制。版权所有:(C)2007,JPO&INPIT
    • 76. 发明专利
    • Programmable digital control equalization circuitry and method
    • 可编程数字控制均衡电路和方法
    • JP2007097160A
    • 2007-04-12
    • JP2006240927
    • 2006-09-06
    • Altera Corpアルテラ コーポレイションAltera Corporation
    • LAI TINSHUMARAYEV SERGEYMAANGAT SIMARDEEPWONG WILSON
    • H04B3/06
    • H03G3/3089H04L25/03885
    • PROBLEM TO BE SOLVED: To accurately adjust the amount of gain in equalization circuitry. SOLUTION: Equalization circuitry (200) may be used to compensate for the attenuation of a data signal caused by a transmission medium. The control circuitry for the equalization circuitry may generate control inputs for equalization stages (202) that control the amount of gain provided to the data signal. A comparator (212) may determine whether the gain from the equalization circuitry is less than or more than the desired amount of gain. A programmable up/down counter (204) may adjust the counter value based on the output of the comparator. The counter value may be converted into one or more analog voltages using one or more digital-to-analog converters (208, 210). The analog voltages may be provided to the equalization stages as control inputs. The control circuitry may also include hysteresis circuitry (214) that prevents the counter value from being adjusted when the gain produced by the equalization stages is close to the desired amount of gain. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:准确调整均衡电路中的增益量。 解决方案:均衡电路(200)可用于补偿由传输介质引起的数据信号的衰减。 用于均衡电路的控制电路可以产生用于控制提供给数据信号的增益量的均衡级(202)的控制输入。 比较器(212)可以确定来自均衡电路的增益是否小于或大于期望的增益量。 可编程上/下计数器(204)可以基于比较器的输出来调整计数器值。 可以使用一个或多个数模转换器(208,210)将计数器值转换成一个或多个模拟电压。 模拟电压可以作为控制输入提供给均衡级。 控制电路还可以包括滞后电路(214),当由均衡级产生的增益接近期望的增益量时,阻止计数器值被调整。 版权所有(C)2007,JPO&INPIT