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    • 4. 发明授权
    • Oil seal assembly
    • 油封总成
    • US4958942A
    • 1990-09-25
    • US409696
    • 1989-09-20
    • Shiro Shimizu
    • Shiro Shimizu
    • F16J15/32F16C33/78
    • F16C33/7869
    • An oil seal assembly has an inner annular member and an outer annular member which can rotate relative to each other and are disposed concentrically with each other to have a certain distance from each other in the radial direction. An elastic annular sealing member is bonded to the outer annular member and is in sliding contact with the inner annular member to form sealed annular cavities between the inner and outer annular members. The outer annular member has a cylindrical portion and an annular flange portion. The inner annular member has an inner cylindrical portion, an annular flange portion and an outer cylindrical portion. This outer cylindrical portion is concentric with the inner cylindrical portion to form a certain distance from the inner peripheral surface of the cylindrical portion of the outer annular member. The elastic annular sealing member has a plurality of seal lips which are bonded to the inner peripheral portion of the annular flange portion of the outer annular member. At least two of the lips are in sliding contact with the outer peripheral surface of the inner cylindrical portion of the inner annular member and the inner peripheral surface of the annular flange of the inner annular member, respectively. A narrow annular space is formed between the end face of the outer cylindrical portion of the inner annular member and the inner peripheral surface of the flange portion of the outer annular member.
    • 油封组件具有内环形构件和外环形构件,所述内环形构件和外环形构件可相对于彼此旋转并且彼此同心设置以在径向方向上彼此具有一定距离。 弹性环形密封构件结合到外环形构件并与内环形构件滑动接触以在内环形构件和外环形构件之间形成密封的环形空腔。 外环形构件具有圆筒形部分和环形凸缘部分。 内环形构件具有内圆柱形部分,环形凸缘部分和外圆柱形部分。 该外圆筒形部分与内圆柱形部分同心,以与外环形构件的圆柱形部分的内圆周表面形成一定距离。 弹性环形密封件具有多个密封唇,该密封唇与外环形构件的环形凸缘部的内周部接合。 至少两个唇部分别与内环形构件的内圆筒部分的外周表面和内环形构件的环形凸缘的内周表面滑动接触。 在内环形构件的外圆筒部的端面与外环状构件的凸缘部的内周面之间形成狭窄的环状空间。
    • 6. 发明申请
    • ERROR CORRECTION METHOD
    • 错误校正方法
    • US20090106624A1
    • 2009-04-23
    • US12065233
    • 2006-08-31
    • Hiroaki KondoShiro Shimizu
    • Hiroaki KondoShiro Shimizu
    • H03M13/29G06F11/08
    • G11B20/18G11B20/1833G11B2020/1836G11B2020/184G11B2020/1853G11B2220/2545H03M13/1515H03M13/29H03M13/2909H03M13/2921H03M13/2927
    • According to an error correction method of the present invention, in the case of decoding a code word (104) which is doubly encoded by adding first and second inspection data (102,103) having minimum distances d1 and d2 from other data, respectively, a position Ex of an erasure symbol X for which an error was detected using the second inspection data (103) but the error could not be corrected is regarded as an erasure position, and a pseudo erasure symbol Y for which an error was detected using the second inspection data (103) and the error was corrected is regarded as being erroneously corrected and a position Ey of this pseudo erasure symbol is also regarded as an erasure position in first-time decoding, and erasure corrections for up to (d1−d) pieces of symbols are performed at one time using the first inspection data (102) when performing second-time decoding using these position information Ex and Ey. Thereby, an error correction method having a minimum number of times of decoding can be realized, and the error correction capability can be enhanced.
    • 根据本发明的纠错方法,在对通过分别从其他数据添加具有最小距离d1和d2的第一和第二检查数据(102,103)来分别对通过相加编码的码字(104)进行解码的情况下, 使用第二检查数据(103)检测到错误但误差不能被校正的擦除符号X的Ex被认为是擦除位置,并且使用第二次检查检测到错误的伪擦除符号Y 数据(103)和纠错的错误被认为被错误地校正,并且该伪擦除符号的位置Ey也被认为是第一次解码时的擦除位置,并且对于(d1-d)个 当使用这些位置信息Ex和Ey执行第二次解码时,使用第一检查数据(102)一次执行符号。 由此,能够实现具有最小次数的解码的纠错方法,能够提高纠错能力。