公开(公告)号：US07770049B1

公开(公告)日：2010-08-03

申请号：US11385328

申请日：2006-03-21

申请人： Shawn Searles ,  Scott C. Johnson ,  Donald Walters ,  Ravinder Rachala

发明人： Shawn Searles ,  Scott C. Johnson ,  Donald Walters ,  Ravinder Rachala

IPC分类号： G06F1/04

CPC分类号： G06F1/10

摘要： Clock skew may be detected measured and compensated for using phase detectors and variable delay adjusters. Phase detectors may be distributed throughout a clock distribution network and may be configured to analyze two clock signals to determine how often one signal leads the other. The output of the phase detectors may be measured and counted over a large number of clock cycles. The difference between the number of times one signal leads or lags behind the other may be used to determine the amount of delay to apply to the leading clock signal in order to minimize (reduce) skew between the two clock signals. The same techniques for detecting and measuring clock skew may also be used to detect and measure jitter in the clock signals. By configuring variable delay adjusters on clock signals, the amount of jitter in the clock signals can be measured or characterized.

摘要翻译： 可以使用相位检测器和可变延迟调节器测量和补偿时钟偏移。 相位检测器可以分布在整个时钟分配网络中，并且可以被配置为分析两个时钟信号以确定一个信号引导另一个信号的频率。 可以在大量时钟周期上测量和计数相位检测器的输出。 可以使用一个信号引导或滞后于另一个信号的次数之间的差异来确定应用于前导时钟信号的延迟量，以便最小化（减少）两个时钟信号之间的偏差。 用于检测和测量时钟偏移的相同技术也可用于检测和测量时钟信号中的抖动。 通过在时钟信号上配置可变延迟调节器，可以测量或表征时钟信号中的抖动量。

公开(公告)号：US5005965A

公开(公告)日：1991-04-09

申请号：US405968

申请日：1989-09-12

申请人： Donald Walters

发明人： Donald Walters

IPC分类号： G02C3/00

CPC分类号： G02C3/003

摘要： Spectacle frames are provided for use with either prescription lenses, safety lenses, or the like, the frames having a lens-holding substructure with two lens-holding rims joined at the center section by a bridge piece, and two head-engaging members pivotably attached at or near the bridge piece to a top surface thereof, and extending upwardly and around to the side of a wearer's head, the head-engaging members terminating at ear-engaging portions. The pivotable attachment of the head-engaging members to the lens-holding substructure is effected by snap-fitting a cylindrical pin having a ball element at its end, which extends from a forward end of each head-engaging member, into one of a pair of cylindrical bores, each terminating at a spherical socket, which are disposed at and extend into the lens-holding substructure at or near the bridge piece.

摘要翻译： 提供眼镜架用于处方镜片，安全镜片等，具有透镜保持底座的框架具有两个透镜保持边缘，两个透镜保持边缘通过桥接件连接在中心部分，以及两个头部接合构件可枢转地连接 在桥接件的顶部表面附近或附近，并且向上并且围绕着佩戴者的头部延伸，头部接合构件终止于耳朵接合部分。 头部接合构件到透镜保持底座的可枢转的附接通过在其端部处具有球形元件的圆柱形销（从每个头部接合构件的前端延伸）到一对中来实现 的圆柱形孔，每个终止于球形插座，其在桥接件处或附近设置并延伸到透镜保持底座中。

公开(公告)号：US10167662B2

公开(公告)日：2019-01-01

申请号：US13277823

申请日：2011-10-20

申请人： Radenko Zrnic ,  Donald Walters

发明人： Radenko Zrnic ,  Donald Walters

IPC分类号： E06B1/06 ,  E06B3/984

摘要： A frame assembly for a doorway defined by two substantially vertical sides and a substantially horizontal side comprises a header jamb having a top surface, a bottom surface, and one or two header jamb rebates. The top surface of the head jamb is adapted for fixedly mounting to the substantially horizontal side of the doorway and the header jamb rebates located on the bottom surface across the length of the header jamb define a header soffit. The frame assembly comprises two upright jambs each having an outer surface and a top end. The outer surface of each of the upright jambs is adapted for fixedly mounting to one of the two substantially vertical sides of the doorway. The top end of each of the upright jambs have a slot for receiving a portion of the header soffit such that, when assembled, the header soffit engages in the slots.

公开(公告)号：US07765425B1

公开(公告)日：2010-07-27

申请号：US11385329

申请日：2006-03-21

申请人： Shawn Searles ,  Donald Walters ,  Ravinder Rachala ,  Scott C. Johnson

发明人： Shawn Searles ,  Donald Walters ,  Ravinder Rachala ,  Scott C. Johnson

IPC分类号： G06F1/04

CPC分类号： G06F1/10

摘要： A system and method for using variable delay adjusters located at various points across an integrated circuit to measure clock skew and jitter for clock signals of the integrated circuit. A delay controller of the integrated circuit may measure and compensate for clock skew detected between two clock signals by configuring variable delay adjusters located inline with the respective clock signals. Such a delay controller may also use the variable delay adjusters to correct duty cycle errors in a clock signal and may further utilize the variable delay adjusters to measure and characterize jitter detected on the clock signals.

摘要翻译： 一种用于使用位于集成电路上的各个点的可变延迟调节器来测量集成电路的时钟信号的时钟偏移和抖动的系统和方法。 集成电路的延迟控制器可以通过配置与各个时钟信号在一起的可变延迟调节器来测量和补偿在两个时钟信号之间检测到的时钟偏差。 这样的延迟控制器还可以使用可变延迟调整器来校正时钟信号中的占空比误差，并且还可以利用可变延迟调节器来测量和表征在时钟信号上检测到的抖动。

公开(公告)号：US20120096783A1

公开(公告)日：2012-04-26

申请号：US13277823

申请日：2011-10-20

申请人： Radenko Zrnic ,  Donald Walters

发明人： Radenko Zrnic ,  Donald Walters

IPC分类号： E06B1/04

CPC分类号： E06B1/06 ,  E06B3/984

摘要： A frame assembly for a doorway defined by two substantially vertical sides and a substantially horizontal side comprises a header jamb having a top surface, a bottom surface, and one or two header jamb rebates. The top surface of the head jamb is adapted for fixedly mounting to the substantially horizontal side of the doorway and the header jamb rebates located on the bottom surface across the length of the header jamb define a header soffit. The frame assembly comprises two upright jambs each having an outer surface and a top end. The outer surface of each of the upright jambs is adapted for fixedly mounting to one of the two substantially vertical sides of the doorway. The top end of each of the upright jambs have a slot for receiving a portion of the header soffit such that, when assembled, the header soffit engages in the slots.

摘要翻译： 用于由两个基本上垂直的侧面和基本上水平的侧面限定的门口的框架组件包括具有顶表面，底面以及一个或两个头部折边折边的头部边框。 头部边框的顶部表面适于固定地安装到门口的基本上水平的一侧，并且位于底部表面上的横跨整个头部边框的长度的头部折边限定出头部拱腹。 框架组件包括两个具有外表面和顶端的直立边框。 每个直立边框的外表面适于固定地安装到门口的两个基本垂直的侧面中的一个。 每个直立边框的顶端具有用于接收头部拱腹部分的槽，使得当组装时，头部拱腹接合在狭槽中。