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1. 发明授权

US5400331A Communication network interface with screeners for incoming messages 失效
标题翻译：通信网络接口，带有入门消息的筛选器
公开(公告)号：US5400331A
公开(公告)日：1995-03-21
申请号：US54944
申请日：1993-04-28
申请人： Mark A. Lucak , Jonathan R. Engdahl , David J. Gee , Hassan A. Chami , Donald S. Pieronek
发明人： Mark A. Lucak , Jonathan R. Engdahl , David J. Gee , Hassan A. Chami , Donald S. Pieronek
IPC分类号： H04L12/18 , H04L29/06 , H04J3/02 , H04L12/56
CPC分类号： H04L29/06
摘要： Each message carried by a communication network has a packet that contains data, a tag, and a generation count wherein duplicate packets sent in different messages have identical generation counts. A station includes a modem that connects to the communication network in order to receive messages. A fixed screener circuit has a first memory that stores a set of tag values and a fixed screener determines when a packet tag matches a tag value in the first memory. The station also has an interface through which tag values are received from an external device, such as a host computer. A general purpose screener includes a second memory with a plurality of storage locations in which to store tag values from the interface and a generation count associated with each tag value. A first comparator in the general purpose screener determines when a tag contained in a packet matches a tag value in the second memory, and a second comparator determines when a generation count in the packet matches the generation count in the second memory that is associated with the matching tag value. A control circuit produces a signal when the first comparator indicates a tag match and the second comparator indicates that the generation counts do not match. The station ignores the packet in the absence of the signal.
摘要翻译：由通信网络携带的每个消息具有包含数据，标签和生成计数的分组，其中在不同消息中发送的重复分组具有相同的生成计数。站点包括连接到通信网络以便接收消息的调制解调器。固定筛选器电路具有存储一组标签值的第一存储器，并且固定筛选器确定分组标签何时与第一存储器中的标签值匹配。该站还具有从诸如主机的外部设备接收标签值的接口。通用筛选器包括具有多个存储位置的第二存储器，其中存储来自接口的标签值和与每个标签值相关联的生成计数。通用筛选器中的第一比较器确定包含在分组中的标签何时与第二存储器中的标签值匹配，并且第二比较器确定分组中的生成计数何时与第二存储器中的生成计数匹配，匹配标签值。当第一比较器指示标签匹配并且第二比较器指示生成计数不匹配时，控制电路产生信号。在没有信号的情况下，电台忽略数据包。

2. 发明授权

US5471461A Digital communication network with a moderator station election process 失效
标题翻译：数字通信网络与主持人选举过程
公开(公告)号：US5471461A
公开(公告)日：1995-11-28
申请号：US54581
申请日：1993-04-28
申请人： Jonathan R. Engdahl , Mark A. Lucak , David J. Gee , Paul Kucharski
发明人： Jonathan R. Engdahl , Mark A. Lucak , David J. Gee , Paul Kucharski
IPC分类号： G05B19/042 , H04L12/24 , H04L12/407
CPC分类号： H04L12/4035 , G05B19/0421 , H04L12/24 , H04L41/00 , H04L12/407
摘要： A moderator on a communication network periodically transmits a set of parameters for a protocol that is used to communicate over the network. Each node on the network compares the set of protocol parameters from the moderator to a set of parameters stored in that node. If the sets of parameters at a given node do not match, that given node ceases transmitting messages over the network until either the set of protocol parameters from the moderator match the stored set of parameters, or a matching set of parameters is stored in the node. Typically the active node that is assigned the lowest numerical network address functions as the moderator. However, an automatic process is utilized to prevent a node with a non-matching set of the protocol parameters from becoming the moderator for more than a brief period of time. An override procedure is provided to force all the nodes on the network to adopt a common set of protocol parameters in the event that the automatic process fails.
摘要翻译：通信网络上的主持人周期性地发送用于通过网络通信的协议的一组参数。网络上的每个节点将来自主持人的协议参数集合与存储在该节点中的一组参数进行比较。如果给定节点上的参数集合不匹配，则该给定节点停止通过网络发送消息，直到来自主持人的一组协议参数与存储的参数集匹配，或者将一组匹配的参数存储在节点中。通常，分配最低数字网络地址的主动节点用作主持人。然而，使用自动处理来防止具有协议参数的不匹配集合的节点在短时间内成为主持人。在自动进程失败的情况下，提供覆盖程序以强制网络上的所有节点采用一组公共协议参数。

3. 发明授权

US5553095A Method and apparatus for exchanging different classes of data during different time intervals 失效
标题翻译：用于在不同时间间隔内交换不同类别数据的方法和装置
公开(公告)号：US5553095A
公开(公告)日：1996-09-03
申请号：US54582
申请日：1993-04-28
申请人： Jonathan R. Engdahl , David J. Gee , Mark A. Lucak , Shawn L. Adams
发明人： Jonathan R. Engdahl , David J. Gee , Mark A. Lucak , Shawn L. Adams
IPC分类号： G05B19/042 , H04L12/417 , H04B1/38 , H04J3/02
CPC分类号： H04L12/40013 , G05B19/0421 , H04L12/40143 , H04L12/4035 , H04L12/40026 , H04L12/407
摘要： A digital communication network carries high and low priority data. The network stations that produce high priority data are assigned to a first group of stations and stations that produce low priority data are assigned to a second group with the two group not being mutually exclusive. Activity on the network is divided into periodic intervals of the same duration. Network control information, that defines how access to the medium, is determined is broadcast to all stations during a first segment of a periodic interval. The network control information defines the length of the periodic interval and of the periodic interval segments, and defines how many stations are in each group. Then during a second segment of the periodic interval, every station in the first group is afforded an opportunity, in a predefined order, to transmit high priority data over the medium. Stations in the second group are afforded an opportunity to transmit low priority data, when time remains after the first segment in a periodic interval before the network control information will be transmitted again. The specific station in the second group which is afforded an opportuinity to transmit first changes from periodic interval to periodic interval.
摘要翻译：数字通信网络承载高优先级数据和低优先级数据。产生高优先级数据的网络站被分配给第一组站，并且产生低优先级数据的站被分配给具有两个组不相互排斥的第二组。网络上的活动划分为相同持续时间的周期性间隔。在定期间隔的第一段期间，广播所有站的网络控制信息，其定义如何访问介质。网络控制信息定义周期性间隔和周期性间隔段的长度，并定义每组中的站数。然后在周期性间隔的第二段期间，第一组中的每个站以预定义的顺序提供通过介质传送高优先级数据的机会。在再次发送网络控制信息之前，第二组中的站点可以传送低优先级数据，时间保持在第一段之后的周期性间隔。第二组中的特定站提供了从周期性间隔向周期性间隔发送第一次更改的机会。

4. 发明授权

US5537549A Communication network with time coordinated station activity by time slot and periodic interval number 失效
标题翻译：具有通过时隙和周期间隔数的时间协调站活动的通信网络
公开(公告)号：US5537549A
公开(公告)日：1996-07-16
申请号：US54323
申请日：1993-04-28
申请人： David J. Gee , Mark A. Lucak , Jonathan R. Engdahl , Timothy Siorek
发明人： David J. Gee , Mark A. Lucak , Jonathan R. Engdahl , Timothy Siorek
IPC分类号： G05B19/042 , H04L12/417 , G06F13/372 , H04J3/16
CPC分类号： H04L12/40032 , G05B19/0421 , H04L12/4035 , H04L12/417 , H04L12/40026 , H04L12/407 , H04L2012/4026
摘要： Activity on a digital communication network is divided into periodic intervals and during a segment of each periodic interval a moderator station broadcasts a numerical count of the periodic intervals to all stations on the network. Each station has a memory in which a numerical value is stored, and a comparator that compares the numerical value to the numerical count received from the network. When the numerical count of the periodic intervals equals the numerical value, an apparatus within the station performs a defined operation, such as transmitting a message over the network or synchronizing a clock in the station to a master time standard. The equality of the periodic interval count and the numerical value also can be used to determine when to signal an external device. By using the count of the periodic intervals in this manner, the operation of several stations on the network can be coordinated.
摘要翻译：数字通信网络上的活动被划分为周期性间隔，并且在每个周期性间隔的段期间，主持人站向网络上的所有站广播周期性间隔的数字计数。每个站具有存储数值的存储器，以及将数值与从网络接收的数值进行比较的比较器。当周期性间隔的数值等于数值时，站内的装置执行定义的操作，例如通过网络发送消息或将站中的时钟同步到主时间标准。周期性间隔计数和数值的相等也可以用于确定何时向外部设备发信号。通过以这种方式使用周期性间隔的计数，可以协调网络上的几个站的操作。

5. 发明授权

US5493571A Apparatus and method for digital communications with improved delimiter detection 失效
标题翻译：用于具有改进的定界符检测的数字通信的装置和方法
公开(公告)号：US5493571A
公开(公告)日：1996-02-20
申请号：US54400
申请日：1993-04-28
申请人： Jonathan R. Engdahl , Michael A. Bush , Lawrence W. Esker , Mark A. Lucak , David J. Gee
发明人： Jonathan R. Engdahl , Michael A. Bush , Lawrence W. Esker , Mark A. Lucak , David J. Gee
IPC分类号： H04L7/04 , H04L7/10 , H04L12/417 , H04L25/49 , H04L29/06 , H04J3/06 , H04L7/00
CPC分类号： H04L12/4035 , H04L12/417 , H04L25/4904 , H04L29/06 , H04L7/041 , H04L12/407 , H04L7/10
摘要： A node circuit is operative to couple Manchester encoded data between a transmission medium and an associated electrical device. A first mechanism detects a message frame preamble having a pattern of alternating signal level of substantially identical duration, and a second mechanism that detects a start delimiter in the message frame. The start delimiter has a plurality of binary signal levels in a unique pattern that satisfies a defined set of criteria to optimize the probability that the pattern will be detected while minimizing the likelihood that random valid data will alias into the start delimiter pattern. A data decoder is provided to convert the Manchester encoded data into binary data which then is sent via a signal path to the associated electrical device. Another mechanism is included to detect a unique end delimiter that signals the termination of the message frame.
摘要翻译：节点电路可操作以在传输介质和相关联的电气设备之间耦合曼彻斯特编码数据。第一机制检测具有基本相同持续时间的交替信号电平的模式的消息帧前同步码，以及检测消息帧中的起始定界符的第二机制。起始分隔符具有独特模式中的多个二进制信号电平，其满足定义的准则集以优化将被检测到模式的概率，同时使随机有效数据将别名到起始定界符模式的可能性最小化。提供数据解码器以将曼彻斯特编码的数据转换成二进制数据，然后将其经由信号路径发送到相关联的电气设备。包括另一种机制来检测信号终止消息帧的唯一终结分隔符。

6. 发明授权

US06569701B2 Method for fabricating an isolated microelectromechanical system device 有权
标题翻译：用于制造隔离的微机电系统装置的方法
公开(公告)号：US06569701B2
公开(公告)日：2003-05-27
申请号：US10002725
申请日：2001-10-25
申请人： Michael J. Knieser , Robert J. Kretschmann , Mark A. Lucak , Richard D. Harris
发明人： Michael J. Knieser , Robert J. Kretschmann , Mark A. Lucak , Richard D. Harris
IPC分类号： H01L2100
CPC分类号： B81C1/00357 , B81C2201/019 , B81C2203/0109
摘要： A method is presented for fabricating an electrically isolated MEMS device having a conductive outer MEMS element, and an inner movable MEMS element spaced apart from the conductive outer MEMS element. The inner element includes a nonconductive base having a plurality of conductive structures extending therefrom. The conductive components are formed by plating a conductive material into a pre-formed mold which defines the shape of the conductor.
摘要翻译：提出了一种用于制造具有导电外部MEMS元件的电隔离MEMS器件的方法，以及与导电外部MEMS元件间隔开的内部可移动MEMS元件。内部元件包括具有从其延伸的多个导电结构的非导电基底。导电部件通过将导电材料镀覆到限定导体形状的预成型模具中而形成。

7. 发明授权

US07093498B2 Microelectromechanical strain gauge with frequency detector 有权
标题翻译：带有频率检测器的微机电应变仪
公开(公告)号：US07093498B2
公开(公告)日：2006-08-22
申请号：US10675642
申请日：2003-09-30
申请人： Patrick C. Herbert , Richard D. Harris , Frederick M. Discenzo , Michael J. Knieser , Robert J. Kretschmann , Mark A. Lucak , Robert J. Pond , Louis F. Szabo
发明人： Patrick C. Herbert , Richard D. Harris , Frederick M. Discenzo , Michael J. Knieser , Robert J. Kretschmann , Mark A. Lucak , Robert J. Pond , Louis F. Szabo
IPC分类号： G01B7/16
CPC分类号： G01B7/22 , G01L1/148 , G01L1/183
摘要： A microelectromechanical system (MEMS) strain gauge includes at least one flexible arm that can be caused to oscillate. Transverse strain on the arm changes the resonant frequency of the arm. A detector communicating with the flexible arm may detect the frequency of oscillation to provide, an indication of the transverse strain of the substrate.
摘要翻译：微机电系统（MEMS）应变仪包括至少一个能够振荡的柔性臂。臂上的横向应变改变了臂的共振频率。与柔性臂通信的检测器可以检测振荡的频率，以提供衬底的横向应变的指示。

8. 发明授权

US06975193B2 Microelectromechanical isolating circuit 失效
标题翻译：微机电隔离电路
公开(公告)号：US06975193B2
公开(公告)日：2005-12-13
申请号：US10397096
申请日：2003-03-25
申请人： Michael J. Knieser , Richard D. Harris , Robert J. Pond , Louis F. Szabo , Frederick M. Discenzo , Patrick C. Herbert , Robert J. Kretschmann , Mark A. Lucak
发明人： Michael J. Knieser , Richard D. Harris , Robert J. Pond , Louis F. Szabo , Frederick M. Discenzo , Patrick C. Herbert , Robert J. Kretschmann , Mark A. Lucak
IPC分类号： H01H59/00 , H01N51/22
CPC分类号： H01H59/0009
摘要： Microelectromechanical (MEMS) switches are used to implement a flying capacitor circuit transferring of electrical power while preserving electrical isolation for size critical applications where transformers or coupling capacitors would not be practical. In one embodiment, the invention may be used to provide input circuits that present a programmable input impedance. The circuit may be modified to provide for power regulation.
摘要翻译：微机电（MEMS）开关用于实现电力传输的飞跨电容器电路，同时保持用于尺寸关键应用的电隔离，其中变压器或耦合电容器不实用。在一个实施例中，本发明可以用于提供呈现可编程输入阻抗的输入电路。可以修改电路以提供功率调节。

9. 发明授权

US5153884A Intelligent network interface circuit 失效
标题翻译：智能网络接口电路
公开(公告)号：US5153884A
公开(公告)日：1992-10-06
申请号：US552961
申请日：1990-08-15
申请人： Mark A. Lucak , Jonathon R. Engdahl , Michael T. Klein
发明人： Mark A. Lucak , Jonathon R. Engdahl , Michael T. Klein
IPC分类号： H04L29/08 , H04L29/06
CPC分类号： H04L29/06
摘要： An interface circuit couples a host processor in an industrial control system to a local area communications network. In includes a protocol machine for receiving and transmitting messages on the network and an interface controller which is programmed to implement one or more protocols. As a message is received by the protocol machine, the interface controller anticipates a responsive message which it writes to the protocol machine even as the message is being received. If the message is received accurately, the responsive message is transmitted without delay.

10. 发明授权

US07387737B2 Method for fabricating an isolated microelectromechanical system (MEMS) device using an internal void 有权
标题翻译：使用内部空隙制造隔离的微机电系统（MEMS）装置的方法
公开(公告)号：US07387737B2
公开(公告)日：2008-06-17
申请号：US11299151
申请日：2005-12-09
申请人： Richard D. Harris , Robert J. Kretschmann , Michael J. Knieser , Mark A. Lucak
发明人： Richard D. Harris , Robert J. Kretschmann , Michael J. Knieser , Mark A. Lucak
IPC分类号： C23F1/22
CPC分类号： B81C1/00484 , B81B2201/0235 , B81B2203/0315 , B81C1/00626 , B81C2201/019 , B81C2203/0109 , H01G5/40
摘要： A method for fabricating an electrically isolated MEMS device having an outer stationary MEMS element and an inner movable MEMS element is provided that does not use a sacrificial layer. Rather, a pair of spacers are defined on the outer portions of the upper surface of a conductive wafer, and an insulating material is deposited thereon. The spacers are attached to a substrate to define an internal void therein. The wafer is then patterned to form the outer MEMS element as well as a conductive member for the inner MEMS element, separated from the outer MEMS element by a gap. A portion of the insulating layer that is disposed in the gap is then removed, thereby releasing the inner MEMS element from the stationary MEMS element.
摘要翻译：提供了一种用于制造具有外部固定MEMS元件和内部可移动MEMS元件的电隔离MEMS器件的方法，其不使用牺牲层。相反，在导电晶片的上表面的外部部分限定一对间隔物，并且在其上沉积绝缘材料。间隔件附接到基底以在其中限定内部空隙。然后将晶片图案化以形成外部MEMS元件以及用于内部MEMS元件的导电构件，其通过间隙与外部MEMS元件分离。然后去除设置在间隙中的绝缘层的一部分，从而将内部MEMS元件从固定MEMS元件释放。

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