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    • 1. 发明授权
    • Method for verifying servo data
    • 验证伺服数据的方法
    • US4516162A
    • 1985-05-07
    • US487341
    • 1983-04-21
    • David E. West
    • David E. West
    • G11B5/02G11B5/596
    • G11B5/02G11B5/59611
    • A method is disclosed for verifying the integrity of servo data stored as a series of parallel servo tracks on a disk. Each track includes automatic gain control data and servo positioning data. The peak amplitudes of the automatic gain control pulses on a first track determine a first effective threshold or AGC gain level. The first threshold level is then shifted to a higher, enhanced threshold level. Servo data pulses from a second track are then detected, based on the enhanced threshold level and the AGC gain level of the first track. Should these servo data pulses not be fully detected, an error is recorded for the second servo track.
    • 公开了一种用于验证存储在盘上的一系列并行伺服轨道的伺服数据的完整性的方法。 每个轨道包括自动增益控制数据和伺服定位数据。 第一轨道上的自动增益控制脉冲的峰值幅度确定第一有效阈值或AGC增益水平。 然后将第一阈值水平转移到较高的增强阈值水平。 然后基于增强的阈值电平和第一磁道的AGC增益电平来检测来自第二磁道的伺服数据脉冲。 如果不完全检测到这些伺服数据脉冲,则会记录第二个伺服磁道的错误。
    • 2. 发明申请
    • INSULATED CONCRETE FORM AND MOLD FOR MAKING SAME
    • 绝缘混凝土和模具制造
    • US20070245659A1
    • 2007-10-25
    • US11697064
    • 2007-04-05
    • David E. West
    • David E. West
    • E04B2/00
    • E04B2/54B28B7/0041B28B7/10B28B7/18B28B23/0087E04B2/40E04B2/8623E04B2/8629
    • An insulated concrete form has: a first side wall portion; a second side wall portion substantially parallel with said first side wall portion; and a pillar portion extending between said the side wall portions. The pillar portion has: a first tapered section; a second tapered section; and a center section extending between said tapered sections. The first tapered section, the second tapered section and the center section each have an octagonal-shaped longitudinal cross-section. The insulated concrete form may include a plurality of pillar portions extending between the side wall portions, with the plurality of pillar portions being substantially parallel with each other. A wall structure may be formed from a plurality of such insulated concrete forms. A mold for forming an insulated concrete form, has: a first side plate and a second side plate; a slave pallet element supported by a frame and abutting a lower portion of interior sides of the side plates; and a first spine member and a second spine member attached to the side plates. The first side plate and the second side plate, along with the first spine member and the second spine member, may be pulled horizontally outward to clear the mold cavity.
    • 绝缘混凝土形式具有:第一侧壁部分; 基本上平行于所述第一侧壁部分的第二侧壁部分; 以及在所述侧壁部之间延伸的柱部。 柱部具有:第一锥形部; 第二锥形部; 以及在所述锥形部分之间延伸的中心部分。 第一锥形部分,第二锥形部分和中心部分各自具有八边形的纵向截面。 绝缘混凝土形式可以包括在侧壁部分之间延伸的多个柱部分,其中多个柱部分彼此基本平行。 壁结构可以由多个这种绝缘的混凝土形式形成。 一种用于形成绝缘混凝土形式的模具,具有:第一侧板和第二侧板; 由托架支撑的从托盘元件,并邻接侧板的内侧的下部; 以及附接到侧板的第一脊柱构件和第二脊柱构件。 第一侧板和第二侧板以及第一脊柱构件和第二脊柱构件可以被水平向外拉以清除模腔。