公开(公告)号：US06882765B1

公开(公告)日：2005-04-19

申请号：US09704458

申请日：2000-11-01

Applicant: Kent Erickson ,  Subhashini Kaligotia ,  Rajiv Ramaswami

Inventor： Kent Erickson ,  Subhashini Kaligotia ,  Rajiv Ramaswami

IPC: G02B6/43 ,  H04J14/02 ,  H04Q11/00 ,  G02B6/26 ,  H04B10/03

CPC classification number: H04J14/0293 ,  G02B6/43 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0297 ,  H04Q11/0062 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0041 ,  H04Q2011/0043 ,  H04Q2011/005 ,  H04Q2011/0073 ,  H04Q2011/0081 ,  H04Q2011/0083

Abstract: The present invention provides methods, apparatus and systems for protecting connections between optical cross-connect switches and client equipment. A connection failure is detected, signaled, and a switch made by the client equipment and the optical cross-connect switch to a protection connection between them so as to minimize service interruption. An out-of-band channel or an in-band channel can be used to signal the connection failure.

Abstract translation: 本发明提供用于保护光交叉连接交换机和客户端设备之间的连接的方法，装置和系统。 由客户端设备和光交叉连接交换机进行连接故障检测，发信号通知和交换机之间的保护连接，以最大限度地减少业务中断。 可以使用带外频道或带内频道来表示连接故障。

公开(公告)号：US06739444B2

公开(公告)日：2004-05-25

申请号：US10077047

申请日：2002-02-14

Applicant: Kevin R. Baker ,  Kent Erickson

Inventor： Kevin R. Baker ,  Kent Erickson

IPC: G07D508

CPC classification number: G07D5/08

Abstract: A coin sensor utilizes time-multiplexing of LC oscillators having natural frequencies F1A, F1B, F2, and F3 to produce magnetic fields in three sets of windings. As a coin passes through the coin sensor, the LC oscillators are separately enabled in a sequence to produce a frequency profile for each set of windings. A first winding produces a frequency profile for the facial area of a coin, a second winding produces a frequency profile for a cross-sectional area of a the coin, and a third winding produces a frequency profile for further distinguishing the relative size of a coin. A microcontroller identifies signature points from the frequency profiles and compares the signature points with stored signatures for a multitude of coins and/or tokens.

Abstract translation: 硬币传感器利用具有固有频率F1A，F1B，F2和F3的LC振荡器的时间复用来产生三组绕组中的磁场。 当硬币通过硬币传感器时，LC振荡器分别使能以产生每组绕组的频率分布。 第一绕组产生用于硬币的面部区域的频率分布，第二绕组产生用于硬币的横截面积的频率分布，并且第三绕组产生用于进一步区分硬币的相对尺寸的频率分布 。 微控制器从频率分布中识别签名点，并将签名点与存储的许多硬币和/或令牌的签名进行比较。