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
    • 102. 发明专利
    • Electronic parts tester, spectral analyzer, electronic parts test method, and tester for magnetic head parts/magnetic media parts
    • 电子部件测试仪,光谱分析仪,电子部件测试方法和磁头部件/磁性部件测试仪
    • JP2009139382A
    • 2009-06-25
    • JP2008310297
    • 2008-12-04
    • Headway Technologies Incヘッドウェイテクノロジーズ インコーポレイテッド
    • LOU SHRINKLECRILL PETERYO MEIKIKO GENKI
    • G01R31/00G01R23/173
    • G01R29/26G01R23/16G01R31/319G01R33/0029G01R33/1207
    • PROBLEM TO BE SOLVED: To provide a simple and low-cost system and a method for testing properties of electronic parts such as magnetic head parts and magnetic media parts. SOLUTION: A magnetic head/media parts tester includes a tester process controller 235 which generates a calibration control signal for the electronic parts tester, and a spectral analyzer 220. This spectral analyzer 220 receives a response characteristic signal (f(t))217 from a magnetic head 205 to determine its frequency spectrum and then transmits this frequency spectrum to the tester process controller 235. This spectral analyzer 220 also receives the calibration control signal from the tester process controller 235 to eliminate the effect of image frequency from the frequency spectrum, determining noise bandwidth of the frequency spectrum. Especially when electronic parts are magnetic head/media parts, magnetic head/media parts tester suitable for measurement of signal-to-noise ratio or overwrite capability, etc. is be obtained. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种简单且低成本的系统和用于测试诸如磁头部件和磁性介质部件的电子部件的性能的方法。 解决方案:磁头/介质部件测试器包括产生用于电子部件测试器的校准控制信号的测试器过程控制器235和光谱分析器220.该光谱分析器220接收响应特性信号(f(t) )217,以确定其频谱,然后将该频谱传输到测试器过程控制器235.该光谱分析器220还从测试器过程控制器235接收校准控制信号,以消除来自测试器过程控制器235的图像频率的影响 频谱,确定频谱的噪声带宽。 特别是当电子部件是磁头/介质部件时,可以获得适合于测量信噪比或覆盖能力等的磁头/介质部件测试器。 版权所有(C)2009,JPO&INPIT
    • 109. 发明专利
    • Method and device for detecting jitter
    • 用于检测抖动的方法和装置
    • JP2008008811A
    • 2008-01-17
    • JP2006180702
    • 2006-06-30
    • Leader Electronics Corpリーダー電子株式会社
    • SUGIYAMA IICHIRO
    • G01R29/02G11B7/005G11B20/10
    • G01R29/26G01R31/31709G11B20/10009G11B20/10027G11B20/10037G11B20/10046G11B20/10055G11B20/10314G11B20/225G11B2020/1442G11B2020/1461G11B2220/2562G11B2220/2579
    • PROBLEM TO BE SOLVED: To provide an improved jitter detection device capable of detecting jitter.
      SOLUTION: The jitter detection device is equipped with a reception circuit 1 for receiving a signal, a determination circuit 3 for determining a signal portion used for jitter detection in the received signal based on a signal amplitude, and a jitter detection circuit 5 for detecting jitter on the signal based on the determined signal portion. The determination circuit 3 includes the first threshold setting circuit for generating the first threshold, the second threshold setting circuit for generating the second threshold, and a period signal generation circuit for generating a period signal by using the first and second thresholds, and the jitter detection circuit 5 includes a signal portion detection circuit for detecting the signal portion by responding to the received signal following the period signal.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供能够检测抖动的改进的抖动检测装置。 解决方案:抖动检测装置配备有用于接收信号的接收电路1,用于基于信号幅度确定用于接收信号中的抖动检测的信号部分的判定电路3和抖动检测电路5 用于基于所确定的信号部分来检测信号上的抖动。 确定电路3包括用于产生第一阈值的第一阈值设置电路,用于产生第二阈值的第二阈值设置电路和用于使用第一和第二阈值产生周期信号的周期信号产生电路,以及抖动检测 电路5包括信号部分检测电路,用于通过响应周期信号之后的接收信号来检测信号部分。 版权所有(C)2008,JPO&INPIT