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1. 发明授权

US5003556A Squelch circuit 失效
标题翻译：静噪电路
公开(公告)号：US5003556A
公开(公告)日：1991-03-26
申请号：US375036
申请日：1989-06-30
申请人： Robert A. Curtis , William C. Mallard, Jr.
发明人： Robert A. Curtis , William C. Mallard, Jr.
IPC分类号： H03G3/34 , H03K5/125 , H04B1/10 , H04L7/04 , H04L25/06
CPC分类号： H03G3/345 , H03K5/125 , H04B1/10 , H04L25/069 , H04L7/046
摘要： A squelch circuit is disclosed that distinguishes between noise impulses and valid packets of data transmitted over a transmission line such as a twisted pair media within a local area network. The squelch circuit converts supplied data into a stream of positive and negative pulses and detects a sequence of positive and negative pulses quantified in time based on prior knowledge of the characteristics of a valid packet of data and permits the supplied data to pass if it has the characteristics of a valid packet of data or prohibits the supplied data from passing if it does not have the characteristics of a valid packet of data.
摘要翻译：公开了一种静噪电路，其区分噪声脉冲和通过诸如局域网内的双绞线媒体的传输线传输的有效数据分组。静噪电路将提供的数据转换成正脉冲和负脉冲流，并且基于有效数据分组的特征的先验知识来检测在时间上定量的正脉冲和负脉冲的序列，并允许所提供的数据如果具有如果不具有有效的数据分组的特征，则有效数据分组的特征或者禁止所提供的数据通过。

2. 发明授权

US5247464A Node location by differential time measurements 失效
标题翻译：通过差分时间测量的节点位置
公开(公告)号：US5247464A
公开(公告)日：1993-09-21
申请号：US357078
申请日：1989-05-25
申请人： Robert A. Curtis
发明人： Robert A. Curtis
IPC分类号： H04L12/26
CPC分类号： H04L43/00 , H04L12/26
摘要： A system for determining the physical location of nodes on a network. The system includes two stations each of which has a clock. Each station uses its clock to determine the arrival times at the station of a packet transmitted over the network from a first node to a second node and of a reply packet sent by the second node to the first node. The arrival times of the packets and the corresponding reply packets are then used to calculate the distance along the network which separates the first and second node. Measurement of packet arrival times for all of the nodes yields the position of all of the nodes on the network.
摘要翻译：用于确定网络上的节点的物理位置的系统。该系统包括两个站，每个站有一个时钟。每个站使用其时钟来确定在从第一节点到第二节点的网络上发送的分组的站处的到达时间以及由第二节点发送到第一节点的应答分组的到达时间。然后使用分组的到达时间和相应的应答分组来计算沿着网络分离第一和第二节点的距离。所有节点的分组到达时间的测量产生网络上所有节点的位置。

3. 发明授权

US5223806A Method and apparatus for reducing electromagnetic interference and emission associated with computer network interfaces 失效
标题翻译：用于减少与计算机网络接口相关联的电磁干扰和发射的方法和装置
公开(公告)号：US5223806A
公开(公告)日：1993-06-29
申请号：US748947
申请日：1991-08-23
申请人： Robert A. Curtis , Dusan S. Skendzic
发明人： Robert A. Curtis , Dusan S. Skendzic
IPC分类号： H04B3/28
CPC分类号： H04B3/28
摘要： A computer network interface ("NIC") exhibits reduced electromagnetic interference and emission through capacitively coupling an output transformer center tap both to reference ground and to logic ground of the NIC's transceiver. Transmit signal lines on both sides of the transceiver are also capacitively coupled to both grounds. Other aspects of the invention reduce electromagnetic interference and emission through improvements in the construction of the NIC printed circuit board and the technique for intercoupling a plurality of NIC's using shielded twisted-pair cable.
摘要翻译：计算机网络接口（“NIC”）通过将输出变压器中心抽头电容耦合到参考接地和NIC收发器的逻辑地，显示出降低的电磁干扰和发射。收发器两侧的发射信号线也可电容耦合到两个接地。本发明的其它方面通过改进NIC印刷电路板的结构来降低电磁干扰和发射，以及使用屏蔽双绞线电缆耦合多个NIC的技术。

4. 发明授权

US4875223A Twisted pair adapter 失效
标题翻译：双绞线适配器
公开(公告)号：US4875223A
公开(公告)日：1989-10-17
申请号：US93974
申请日：1987-09-08
申请人： Robert A. Curtis
发明人： Robert A. Curtis
IPC分类号： H03H7/38 , H04B3/02 , H04L12/40 , H04L25/02
CPC分类号： H04L12/40182 , H04L12/40
摘要： An adapter for allowing high frequency local area network signals to be transmitted over low cost twisted pair cable. The adapter performs two functions, to act as a converter to match the impedance of the coaxial cable to that of twisted pair cable, as well as an output balancer, to insure that the alternating current or high frequency components of the signals sent over the twisted pair cable are complementary. Only one of the complementary signals carries DC collision information.
摘要翻译：用于允许高频局域网信号通过低成本双绞线传输的适配器。适配器执行两个功能，用作转换器，以将同轴电缆的阻抗与双绞线电缆的阻抗以及输出平衡器相匹配，以确保信号发送的交流或高频分量经扭绞对电缆是互补的。互补信号中只有一个携带DC冲突信息。

5. 发明授权

US5685192A Apparatus for determining the moisture content of solids over a range of relative humidities and temperatures 失效
标题翻译：用于在相对湿度和温度范围内测定固体含水量的装置
公开(公告)号：US5685192A
公开(公告)日：1997-11-11
申请号：US629856
申请日：1996-04-09
申请人： Katherine A. Shriner , Robert A. Curtis , Thomas F. Falls
发明人： Katherine A. Shriner , Robert A. Curtis , Thomas F. Falls
IPC分类号： G01G19/00 , G01N5/04 , G01N50/04
CPC分类号： G01N5/045 , G01G19/00
摘要： A method and apparatus for measuring isotherms comprising a two-pressure and/or two-temperature humidity generator having a temperature controlled internal chamber and a microbalance mounted externally such that the mass of a sample suspended within the chamber can be determined without disturbing the controlled environment surrounding the sample. The two-pressure humidity generator has a front panel for controlling humidity and temperature within the internal chamber and an access port that extends into the internal chamber. The balance is situated near the port such that the balance mechanism extends within the internal cheer. The balance mechanism utilizes a means for holding a sample within the chamber such that the mass of the sample can be determined as it equilibrates to the temperature and relative humidity maintained within the internal cavity.
摘要翻译：一种用于测量等温线的方法和装置，其包括具有温度控制的内部腔室和外部安装的微量天平的双压和/或双温度湿度发生器，使得可以确定悬浮在腔室内的样品的质量而不扰乱受控环境围绕样品。双压湿度发生器具有用于控制内部室内的湿度和温度的前面板和延伸到内部室中的进入口。天平靠近港口，平衡机制在内部欢呼声中延伸。平衡机构利用了将样品保持在室内的装置，使得可以确定样品的质量，因为样品的质量平衡于内腔内保持的温度和相对湿度。

6. 发明授权

US5339307A Data communication system with a local network interface 失效
标题翻译：具有本地网络接口的数据通信系统
公开(公告)号：US5339307A
公开(公告)日：1994-08-16
申请号：US52808
申请日：1993-04-23
申请人： Robert A. Curtis
发明人： Robert A. Curtis
IPC分类号： H04L12/413 , H04L12/44 , H04J3/02 , H04L25/40
CPC分类号： H04L12/44 , H04L12/40013 , H04L12/413
摘要： A data communication system having a plurality of nodes is disclosed. A number of transceivers is provided, each transceiver being coupled to a respective one of the plurality of nodes, for data communication between the transceiver and its associated node. Each transceiver is also provided with a controlled current source. The data communication system is also equipped with a data bus for communication of a transmitted data signal between the transceivers. A current bus which is coupled to each transceiver receives a current signal from the controlled current source when a transceiver is placing the data onto the data bus.
摘要翻译：公开了一种具有多个节点的数据通信系统。提供了多个收发器，每个收发器被耦合到多个节点中的相应一个节点，用于收发器与其相关节点之间的数据通信。每个收发器还具有受控电流源。数据通信系统还配备有用于在收发器之间传输数据信号的数据总线。当收发器将数据放置到数据总线上时，耦合到每个收发器的当前总线从受控电流源接收当前信号。

7. 发明授权

US5255287A Transceiver apparatus and methods 失效
标题翻译：收发装置和方法
公开(公告)号：US5255287A
公开(公告)日：1993-10-19
申请号：US723085
申请日：1991-06-28
申请人： David C. Davies , Donald G. Vonada , Robert A. Curtis
发明人： David C. Davies , Donald G. Vonada , Robert A. Curtis
IPC分类号： H04L25/08 , H04L25/34 , H04L25/49
CPC分类号： H04L25/08 , H04L25/4923
摘要： Transceiver apparatus includes a transmitter circuit constructed with either emitter coupled logic (ECL) circuitry or programmable array logic circuitry, and a receiver circuit constructed with ECL circuitry. The transmitter circuit encodes a binary data signal received for transmission as a three-level modified duobinary encoded data signal and the receiver circuit decodes the received three-level encoded data signal to provide a binary data signal corresponding to the data signal received at the transmitter circuit for transmission. Both the transmitter and receiver circuits include features enabling transmitting and receiving high data-rate data signals.
摘要翻译：收发器装置包括由发射极耦合逻辑（ECL）电路或可编程阵列逻辑电路构成的发射机电路，以及由ECL电路构成的接收机电路。发射机电路对作为三电平修正的二进制编码数据信号进行传输接收的二进制数据信号进行编码，并且接收机电路对接收到的三电平编码数据信号进行解码，以提供对应于在发射机电路接收的数据信号的二进制数据信号用于传输。发射机和接收机电路都包括能够发送和接收高数据速率数据信号的特征。

8. 发明授权

US5459713A Self-configuring data communication system and method 失效
标题翻译：自配置数据通信系统及方法
公开(公告)号：US5459713A
公开(公告)日：1995-10-17
申请号：US270092
申请日：1994-07-01
申请人： Robert A. Curtis
发明人： Robert A. Curtis
IPC分类号： H04L12/413 , H04L12/46 , H04L12/26
CPC分类号： H04L12/40013 , H04L12/413 , H04L12/46
摘要： A controller for a communication system having a plurality of networks and a plurality of stations communicating with each other by sending messages from a source station to a destination station is disclosed. A plurality of stations may be assigned to a group. A communication history for the stations is determined, where the history corresponds to the messages communicated. The stations are connected into a common network in accordance with the communication history. The communication history corrresponds to a series of packets and is based on a source address and a destination address of each of the packets. A station may have a matrix, the matrix having rows indexed by source system address and columns indexed by destination system address, for storing a value indicating a quantity of information transferred from each station to each other station.
摘要翻译：公开了一种具有多个网络的通信系统和通过从源站向目的地站发送消息而相互通信的多个站的通信系统的控制器。可以向组中分配多个站。确定站的通信历史，其中历史对应于所传送的消息。这些站根据通信历史连接到公共网络。通信历史对应于一系列分组，并且基于每个分组的源地址和目的地址。站可以具有矩阵，矩阵具有由源系统地址索引的行和由目的地系统地址索引的列，用于存储指示从每个站向彼此站传送的信息量的值。

9. 发明授权

US4974190A Pass-through and isolation switch 失效
标题翻译：通过和隔离开关
公开(公告)号：US4974190A
公开(公告)日：1990-11-27
申请号：US280149
申请日：1988-12-05
申请人： Robert A. Curtis
发明人： Robert A. Curtis
IPC分类号： G06F13/40 , H04L29/10
CPC分类号： G06F13/4022 , H04L29/10
摘要： A pass-through and isolation switch for connecting a terminal to a computer and for disconnecting the terminal from the computer without disrupting any sessions which may have been opened on the computer by the terminal. The switch includes a first gate and a second gate for switching in and out balanced termination loads across corresponding input terminals of the switch depending on the state of a control signal. And it includes a third gate and a fourth gate for preventing or allowing the passage of signals between the terminal and the computer, also depending upon the state of the control signal.
摘要翻译：用于将终端连接到计算机并用于将终端与计算机断开连接的直通和隔离开关，而不会中断终端可能在计算机上打开的任何会话。该开关包括第一栅极和第二栅极，用于根据控制信号的状态在开关的相应输入端上切换和输出平衡端接负载。并且还包括用于防止或允许终端和计算机之间的信号通过的第三门和第四门，这也取决于控制信号的状态。

10. 发明授权

US3998144A Coffee urn 失效
标题翻译：咖啡缸
公开(公告)号：US3998144A
公开(公告)日：1976-12-21
申请号：US600002
申请日：1975-07-29
申请人： Robert A. Curtis
发明人： Robert A. Curtis
IPC分类号： A47J31/00 , A47J31/50
CPC分类号： A47J31/007 , A47J31/505
摘要： A coffee making apparatus is disclosed for automatically mixing instant coffee and for maintaining the coffee hot during dispensing thereof. The coffee is housed within an urn similar to that utilized for drip coffee although simpler in construction and designed specifically for instant or freeze-dried applications. Provisions are also made for dispensing hot water.
摘要翻译：公开了一种咖啡制造设备，用于自动混合速溶咖啡并且用于在分配时保持咖啡热。咖啡容纳在与用于滴水咖啡相似的瓮内，尽管结构更简单，专为即时或冷冻干燥应用而设计。还提供了分配热水的规定。

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