公开(公告)号：US06173044B2

公开(公告)日：2001-01-09

申请号：US08595897

申请日：1996-02-06

申请人： Peter Dirk Hortensius ,  Leon Lumelsky ,  Anand Narasimhan

发明人： Peter Dirk Hortensius ,  Leon Lumelsky ,  Anand Narasimhan

IPC分类号： H04M1100

CPC分类号： H04L12/2898 ,  H04L12/2856 ,  H04L12/66 ,  H04M3/487 ,  H04M3/54 ,  H04M7/0009 ,  H04M7/12 ,  H04M11/06 ,  H04M2203/2066 ,  H04Q2213/13093 ,  H04Q2213/13107 ,  H04Q2213/13141 ,  H04Q2213/13196 ,  H04Q2213/13199 ,  H04Q2213/13204 ,  H04Q2213/13389 ,  H04Q2213/13396

摘要： A gateway enables point to multipoint connectivity from voice, data, or SVD clients over voice and data networks. The gateway connects one or more known voice networks (e.g. telephone networks) and one or more data networks (e.g. LANs, WANs, and internet) so that clients on either network may access any of the networks via various devices like analog telephones, data modems, SVD modems, or direct data network connections (e.g., ethernet, token ring). The gateway has connections to both the data network(s) as well as the voice network(s). The gateway is capable of splitting a signal with both voice and data streams and routing either and/or both of these streams over the voice network alone, the data network, or both. A process, executing on the gateway enables the gateway to establish connections on gateway paths and to control and direct a flow of voice and data information between the destinations on these networks.

摘要翻译： 网关通过语音和数据网络实现来自语音，数据或SVD客户端的点对多点连接。 网关连接一个或多个已知的语音网络（例如电话网络）和一个或多个数据网络（例如LAN，WAN和互联网），以使得任一网络上的客户端可以经由诸如模拟电话，数据调制解调器 ，SVD调制解调器或直接数据网络连接（例如，以太网，令牌环）。 网关具有与数据网络以及语音网络的连接。 网关能够分离具有语音和数据流的信号，并且通过语音网络，数据网络或两者在这些流之间路由和/或两者。 在网关上执行的过程使得网关能够在网关路径上建立连接，并且控制和引导这些网络上的目的地之间的语音和数据信息流。

公开(公告)号：US06252854B1

公开(公告)日：2001-06-26

申请号：US08966914

申请日：1997-11-12

申请人： Peter Dirk Hortensius ,  Parviz Kermani ,  Babak Rezvani ,  Mahmoud Naghshineh ,  Claus Michael Olsen

发明人： Peter Dirk Hortensius ,  Parviz Kermani ,  Babak Rezvani ,  Mahmoud Naghshineh ,  Claus Michael Olsen

IPC分类号： G01R3108

CPC分类号： H04L1/08 ,  H04L2001/0098

摘要： Rate management in adaptive data rate wireless communication systems in which communicating stations move with respect to one another implements algorithms for calculation of the repetition rate. A rate management module is used for selecting a proper value of repetition rate to be communicated back to sending station and for a selecting proper value of repetition rate to encode the data at the sending station. The repetition rate calculation procedure enables each station to dynamically calculate the optimum rate with which each station should be receiving information from another station. The repetition rate calculation procedures take into consideration past and present measurements of the link quality, age of the link quality measurements, speed of change in the link quality, packet types, packet lengths, received signal strength, and pattern and correlation in the link quality measurements. The rate management module utilizes one or more tables which are accessible from either hardware or software.

摘要翻译： 其中通信站相对于彼此移动的自适应数据速率无线通信系统中的速率管理实现了重复率计算的算法。 速率管理模块用于选择要传送回发送站的重复率的适当值，以及选择适当的重复率值以对发送站进行数据编码。 重复率计算程序使得每个站能够动态地计算每个站应该从另一个站接收信息的最佳速率。 重复率计算过程考虑了链路质量的过去和现在的测量，链路质量测量的年龄，链路质量的变化速度，分组类型，分组长度，接收信号强度以及链路质量中的模式和相关性 测量。 速率管理模块利用可以从硬件或软件访问的一个或多个表。

公开(公告)号：US5818826A

公开(公告)日：1998-10-06

申请号：US664718

申请日：1996-06-17

申请人： Fritz Rudolf Gfeller ,  Peter Dirk Hortensius ,  Patrick K. Kam ,  Parviz Kermani ,  Danny N. McKay ,  Mahmoud Naghshineh ,  Claus Michael Olsen ,  Babak Rezvani

发明人： Fritz Rudolf Gfeller ,  Peter Dirk Hortensius ,  Patrick K. Kam ,  Parviz Kermani ,  Danny N. McKay ,  Mahmoud Naghshineh ,  Claus Michael Olsen ,  Babak Rezvani

IPC分类号： H04L1/00 ,  H04L1/08 ,  H04J3/22

CPC分类号： H04L1/08 ,  H04L2001/0098

摘要： In a wireless multi-rate communications system, a method for extending the range of communications in the system by dividing the physical layer frame into two portions: a robust header portion and a body, where the repetition rate of the data symbols in the header portion is greater than or equal to the repetition rate of the data symbols in the body of the frame. In this way the header can be received and decoded by all stations in the system with a high probability, while the body of the frame need only be received and decoded by the destination station to which the body of the frame is intended to be received and decoded.

摘要翻译： 在无线多速率通信系统中，通过将物理层帧划分为两部分来扩展系统中的通信范围的方法：强大的报头部分和主体，其中报头部分中的数据符号的重复率 大于或等于帧体内数据符号的重复率。 以这种方式，可以以高概率在系统中的所有站点接收和解码报头，而帧的主体仅需要被目标站点接收和解码，目的站站准备接收帧的主体， 解码。

公开(公告)号：US06259043B1

公开(公告)日：2001-07-10

申请号：US08747735

申请日：1996-11-12

申请人： Gregory James Clary ,  Thomas Allan Corbi ,  Robert Joseph Evans ,  Peter Dirk Hortensius ,  John Peter Karidis ,  Krishna Sundaram Nathan

发明人： Gregory James Clary ,  Thomas Allan Corbi ,  Robert Joseph Evans ,  Peter Dirk Hortensius ,  John Peter Karidis ,  Krishna Sundaram Nathan

IPC分类号： G08C2100

CPC分类号： G06F3/041 ,  G06F3/04883 ,  G06K9/222

摘要： Real time digitization of handwritten text and integration of digital recordation of handwritten text with traditional paper-based record making systems is achieved with a recording unit which may record a sequential data stream of strokes and associated events. The data stream may be stored in the apparatus and processed in accordance with various applications. Recordation of handwritten strokes may be accompanied by automatic detection and recordation of predefined events, and by user invoked generation of events. Recorded handwritten text may be processed to produce character strings or image data for text recorded in conjunction with predefined events.

摘要翻译： 手写文本的实时数字化和手写文本的数字记录与传统的基于纸张的记录制作系统的集成是通过记录单元实现的，记录单元可以记录笔画和相关联的事件的顺序数据流。 数据流可以存储在设备中并根据各种应用进行处理。 手写笔画的记录可以伴随着预定事件的自动检测和记录，以及用户调用的事件生成。 可以处理记录的手写文本以产生用于结合预定义事件记录的文本的字符串或图像数据。

公开(公告)号：US5917629A

公开(公告)日：1999-06-29

申请号：US605052

申请日：1990-10-29

申请人： Peter Dirk Hortensius ,  Haaken B. Winbom

发明人： Peter Dirk Hortensius ,  Haaken B. Winbom

IPC分类号： H04L12/28 ,  H04L12/413 ,  H04J14/08

CPC分类号： H04L1/243 ,  H04L1/14 ,  H04L12/413 ,  H04W74/08

摘要： Apparatus and method for interfacing a wired communications network (12) to a wireless communications network (13). Both networks operate with a CSMA protocol. An interface unit (16) includes circuitry (28) for bidirectionally interfacing to the wired medium for transmitting messages thereto and for receiving messages therefrom. The interface unit also includes circuitry (29, 22, 24, 26) for bidirectionally interfacing to the wireless medium for transmitting messages thereto and for receiving messages therefrom. The interface unit further includes logic (28) for bidirectionally routing messages received from the wired medium to the wireless medium and for routing messages received from the wireless medium to the wired medium. A further feature of the interface unit is a collision detector (30), responsive to the reception of a rebroadcast wireless transmission, for comparing the transmitted message to the received rebroadcast message to determine if a collision has occurred.

摘要翻译： 用于将有线通信网络（12）连接到无线通信网络（13）的设备和方法。 两个网络都使用CSMA协议进行操作。 接口单元（16）包括用于双向地连接到有线介质以用于向其发送消息并用于从其接收消息的电路（28）。 接口单元还包括用于双向地连接到无线介质的电路（29,22,24,26），用于向其发送消息并从其接收消息。 接口单元还包括用于将从有线介质接收的消息双向路由到无线介质并用于将从无线介质接收的消息路由到有线介质的逻辑（28）。 接口单元的另一个特征是响应于转播无线传输的接收的冲突检测器（30），用于将发送的消息与所接收的重播消息进行比较，以确定是否发生了冲突。

公开(公告)号：US5844905A

公开(公告)日：1998-12-01

申请号：US677145

申请日：1996-07-09

申请人： Danny Neil McKay ,  Mahmoud Naghshineh ,  Claus Michael Olsen ,  Babak Rezvani ,  Parviz Kermani ,  Peter Dirk Hortensius

发明人： Danny Neil McKay ,  Mahmoud Naghshineh ,  Claus Michael Olsen ,  Babak Rezvani ,  Parviz Kermani ,  Peter Dirk Hortensius

IPC分类号： H04B7/26 ,  H04L12/28 ,  H04L12/413 ,  H04L12/56

CPC分类号： H04W74/0816 ,  H04L12/413

摘要： The throughput of a Request-to-Send and Clear-to-Send (RTS/CTS) based distributed media access control protocol is improved by reserving the medium in a hierarchical fashion. The shared medium is reserved for two stations called the participants. During the reserved period, a master (or primary) attribute and a slave (or secondary) attribute are given to the participants and the medium is shared between them using any suitable coordination algorithm. During the reserved time, the secondary can signal the primary station that it has data to send to the primary station and request that the primary and secondary roles or attributes be exchanged. In the case that a role exchange takes place, control of the medium is transferred from one station to another and data transfer in an opposite direction can take place without requiring another reservation. Observing stations which are not participating in the reservation can be invited to join the reservation as additional secondary stations if this does not cause any interference to any other existing reservations. The efficiency of the medium reservation may be improved also by piggy-backing any reservation specific signals onto data packets and by defining new response frames such as Hold-to-Send (HTS) and Free-to-Send (FTS) for flow control when there is a congested receiving station.

摘要翻译： 通过以分层方式保留介质，改进了基于请求发送和清除发送（RTS / CTS）的分布式媒体访问控制协议的吞吐量。 共享介质保留给两个称为参与者的站。 在保留期间，向参与者提供主（或主）属性和从属（或辅助）属性，并且使用任何合适的协调算法在它们之间共享介质。 在保留时间内，辅助信号可以向主站发信号通知主站具有要发送到主站的数据，并请求交换主要和次要角色或属性。 在发生角色交换的情况下，媒体的控制从一个站转移到另一个站，并且可以发生相反方向的数据传输，而不需要另外的预留。 如果不对任何其他现有保留造成任何干扰，可以邀请不参加保留的观察站作为附加的次级站加入预约。 媒体预约的效率也可以通过将任何预留特定信号捎带到数据分组上，并通过定义新的响应帧（例如保持发送（HTS）和自由发送（FTS））来进行流量控制） 有一个拥挤的接收站。