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    • 23. 发明授权
    • Wireless communications device with network cache function
    • 具有网络缓存功能的无线通信设备
    • US06836663B1
    • 2004-12-28
    • US09667999
    • 2000-09-22
    • Michael D. Kotzin
    • Michael D. Kotzin
    • H04Q720
    • H04L29/06H04L67/04H04L67/2842H04L69/329
    • A wireless communications device (100), after determining it can not locally satisfy a request for network data (201), sends a search query or request for data to a proximal device that has a network cache function (202). The proximal device searches for the requested data (203) and if the data is found, then the data is sent to the requesting wireless communications device from the proximal device (206). The data request is sent over a wide area network (204), for example, the Internet, if the proximal device does not have the requested data stored in a memory on the proximal device (204). The wireless communications device stores the data for subsequent use and, if necessary, subsequent provision to a proximal device.
    • 无线通信设备(100)在确定其不能在本地满足对网络数据(201)的请求之后,向具有网络高速缓存功能的近端设备(202)发送搜索查询或对数据的请求。 近端设备搜索所请求的数据(203),并且如果找到数据,则从近端设备(206)将数据发送到请求无线通信设备。 如果近端设备没有存储在近端设备(204)上的存储器中的所请求的数据,则通过广域网(204),例如因特网来发送数据请求。 无线通信设备存储用于后续使用的数据,并且如果需要,将其随后提供给近端设备。
    • 24. 发明授权
    • Method for improving dispatch response time
    • 改善调度响应时间的方法
    • US06606557B2
    • 2003-08-12
    • US10008634
    • 2001-12-07
    • Michael D. Kotzin
    • Michael D. Kotzin
    • G01C2134
    • G08G1/202
    • A dispatch system generally provides a means for collecting destination information, selecting a dispatch assignment (104) to be dispatched to the destination (102) and dispatching the selected assignment. In situations where the response time of the assignment is a critical factor, selecting the assignment with the shortest response time is desired. An improved method for improving response time of an assignment with the shortest response time incorporates assignment location, a road condition associated with each assignment, and the traffic conditions associated with each assignment. Event information is also considered in determining the best route and travel time from the mobile entity to the destination.
    • 调度系统通常提供用于收集目的地信息的方法,选择要发送到目的地(102)的调度分配(104)并且分派所选择的分配。 在分配的响应时间是关键因素的情况下,需要以最短的响应时间选择分配。 用于改善具有最短响应时间的分配的响应时间的改进方法包括分配位置,与每个分配相关联的道路状况以及与每个分配相关联的交通状况。 在确定从移动实体到目的地的最佳路线和旅行时间时也考虑到事件信息。
    • 25. 发明授权
    • Method and system for aiding in the location of a subscriber unit in a spread spectrum communication system
    • 用于辅助扩频通信系统中的用户单元的位置的方法和系统
    • US06226317B1
    • 2001-05-01
    • US09050283
    • 1998-03-30
    • Eugene J. BruckertMichael D. Kotzin
    • Eugene J. BruckertMichael D. Kotzin
    • H04B169
    • H04W52/343G01S5/14H04B1/707H04W52/346
    • A mobile subscriber unit (MS) location method and system in a spread spectrum channel coding system uses a known spread spectrum location beacon channel (34) that is time division multiplexed with normal code division multiplexed channels (36). Each base station (12, 14 and 16) in a defined service area transmits the known time division multiplexed spread spectrum location beacon signal (34), such as a known location channel, as a spread spectrum location beacon signal at a same time interval. Mobile subscriber units (18) receive the spread spectrum location beacon signal (34) time division multiplexed with the normal CDMA channels (36) and determine their own location using location techniques such as trilateration. Preferably, all of a base station's transmit power is assigned to this special known location channel (34) during transmission.
    • 扩频信道编码系统中的移动用户单元(MS)定位方法和系统使用与普通码分多路复用信道(36)进行时分复用的已知扩频位置信标信道(34)。 在定义的服务区域中的每个基站(12,14和16)以已知的时分多路复用扩展频谱位置信标信号(34)作为扩展频谱位置信标信号以相同的时间间隔发送,例如已知的位置信道。 移动用户单元(18)接收与正常CDMA信道(36)时分复用的扩频位置信标信号(34),并使用诸如三边测距的定位技术来确定它们自己的位置。 优选地,在传输期间,将基站的所有发射功率分配给该特殊的已知位置信道(34)。
    • 26. 发明授权
    • Apparatus and method for transmitting signals in a communication system
    • 用于在通信系统中发送信号的装置和方法
    • US06173005B2
    • 2001-01-09
    • US08923190
    • 1997-09-04
    • Michael D. KotzinKamyar RohaniWalter J. Rozanski, Jr.
    • Michael D. KotzinKamyar RohaniWalter J. Rozanski, Jr.
    • H04B1707
    • H04B7/0671H04J13/0048H04L1/02H04W52/34H04W52/42
    • Orthogonal transmit diversity is implemented by employing a data splitter (803) to subdivide channel information (801) into at least a first portion of bits (802) and a second portion of bits (804). Each portion is spread with its own Walsh code for eventual transmission to a mobile station via a predetermined carrier frequency. When the number of bits in the first and second portion (802, 804) are small, separate Walsh codes are used to maintain orthogonality. When the number of bits in the first and second portion (802, 804) are relatively large, a time-division multiplex transmission is used to maintain orthogonality. A controller (809) controls the subdivision of the channel information and also an interleaver (308) to further enhance the effects of the diversity transmission. Control information related to the subdivision is transmitted to the mobile station so the channel information can be accurately reconstructed prior to decoding.
    • 通过采用数据分离器(803)将信道信息(801)细分为比特(802)和比特(804)的第二部分的至少第一部分来实现正交发射分集。 每个部分用自己的沃尔什码扩展,以便经由预定的载波频率最终传输到移动台。 当第一和第二部分(802,804)中的比特数较少时,使用单独的沃尔什码来维持正交性。 当第一和第二部分(802,804)中的位数相对较大时,使用时分复用传输来保持正交性。 控制器(809)控制信道信息的细分以及交织器(308),以进一步增强分集传输的影响。 将与细分相关的控制信息发送到移动台,使得可以在解码之前准确地重构信道信息。
    • 28. 发明授权
    • Infrastructure transceiver and method for configuration based on RF
operating circumstances
    • 基于射频操作环境的基础收发器和配置方法
    • US5940768A
    • 1999-08-17
    • US758270
    • 1996-11-25
    • Stuart W. ThroMark L. ShaughnessyMichael D. Kotzin
    • Stuart W. ThroMark L. ShaughnessyMichael D. Kotzin
    • H04W16/10H04B7/26
    • H04W16/10
    • In a radio frequency communication system (100), infrastructure transceivers operate in a configuration mode (301-306) and an active mode (307). When in the configuration mode, a given infrastructure transceiver (106-109) derives information regarding RF operating circumstances proximal to the infrastructure transceiver. The information regarding the RF operating circumstances, information regarding the infrastructure transceiver itself, and optionally information regarding present location of the infrastructure transceiver, is transmitted to a communication system configuration server (105). In response, information regarding operation of the infrastructure transceiver is received by the infrastructure transceiver. When in the given infrastructure transceiver is in the active mode, the information regarding operation of the infrastructure transceiver is used to support communications in the RF communication system. With each infrastructure transceiver operating in this manner, the radio frequency communication system can be automatically configured.
    • 在射频通信系统(100)中,基础收发器以配置模式(301-306)和活动模式(307)工作。 当处于配置模式时,给定的基础设施收发器(106-109)导出关于基础设施收发器附近的RF操作环境的信息。 关于RF操作环境的信息,关于基础设施收发器本身的信息,以及关于基础设施收发器的当前位置的可选信息,被传送到通信系统配置服务器(105)。 作为响应,基础设施收发器接收关于基础架构收发器的操作的信息。 当在给定的基础设施收发器处于活动模式时,关于基础设施收发器的操作的信息用于支持RF通信系统中的通信。 通过以这种方式操作每个基础收发器,可以自动配置射频通信系统。