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    • 3. 发明授权
    • Messaging system having roaming capability
    • 具有漫游能力的消息系统
    • US5625351A
    • 1997-04-29
    • US378136
    • 1995-01-24
    • David F. WillardBarbara D. LaflinWilliam J. KuznickiMark AronsonEric T. Eaton
    • David F. WillardBarbara D. LaflinWilliam J. KuznickiMark AronsonEric T. Eaton
    • H04W84/02H04B7/26
    • H04W84/022
    • A messaging system capable of transmitting messages to receivers which roam between coverage areas. In one configuration, a coverage area (100) is divided into a plurality of zones (110). A single simulcast system identification (SSID) number is assigned which consists of a local identification number which identifies the coverage area (100), a zone identifier which identifies a zone (110) within the coverage area, traffic splitting flags and a frequency. For larger roaming areas, a network (200) is defined as consisting of a plurality of service areas (210) and is identified by network roaming identification information (NRI). NRI information and/or SSID information is stored in a receiver according to desired coverage and like information is transmitted in the corresponding zone or service area.
    • 一种能够向覆盖区域之间漫游的接收机发送消息的消息系统。 在一个配置中,覆盖区域(100)被划分为多个区域(110)。 分配单个联播系统识别(SSID)号码,其由标识覆盖区域(100)的本地标识号码,标识覆盖区域内的区域(110)的区域标识符,业务分割标志和频率。 对于较大的漫游区域,网络(200)被定义为由多个服务区域(210)组成,并且由网络漫游识别信息(NRI)识别。 NRI信息和/或SSID信息根据期望的覆盖存储在接收机中,并且类似的信息在相应的区域或服务区域中传输。
    • 7. 发明授权
    • Method and apparatus for aligning a digital receiver
    • 用于对准数字接收机的方法和装置
    • US5479452A
    • 1995-12-26
    • US300892
    • 1994-09-06
    • David J. HayesEric T. EatonVon A. Mock
    • David J. HayesEric T. EatonVon A. Mock
    • H04L27/10H03J7/04H04B1/10H04B1/26H04L27/14H04L27/06
    • H04B1/1027H03J7/04
    • A method is used in a receiver (100) for aligning the receiver (100). The method has a step of intercepting and demodulating the FM signal, which includes data symbols. The method has a step of determining error rates, in which the error rates of at least two subsets of the data symbols are determined. Each subset includes a plurality of the data symbols modulated at a unique one of a plurality of frequency deviations. The at least two subsets include data symbols of two opposite polarities. The method has a step of generating a frequency control signal, in which the frequency control signal is determined based on the error rates. The method has a step of aligning a receiver section (105), in which the receiver section (105) is aligned to the FM signal by controlling a local oscillator (320)which is responsive to the frequency control signal.
    • 一种用于对准接收机(100)的接收机(100)中的方法。 该方法具有拦截和解调包括数据符号的FM信号的步骤。 该方法具有确定错误率的步骤,其中确定数据符号的至少两个子集的错误率。 每个子集包括以多个频率偏差中唯一一个调制的多个数据符号。 至少两个子集包括两个相反极性的数据符号。 该方法具有产生频率控制信号的步骤,其中基于错误率确定频率控制信号。 该方法具有通过控制响应于频率控制信号的本地振荡器(320)来对准接收器部分(105)的步骤,其中接收器部分(105)与FM信号对准。
    • 8. 发明授权
    • Method for increasing battery life for selective call receivers
    • 增加选呼接收机的电池寿命的方法
    • US5382949A
    • 1995-01-17
    • US11614
    • 1993-02-01
    • Von A. MockEric T. Eaton
    • Von A. MockEric T. Eaton
    • H04W52/02H04W88/02H04Q7/00H04B7/00
    • H04W52/0216H04W88/022
    • A selective call receiver system (150, 200) includes a base site (150) which transmits paging information (100) having a plurality of batches (1-to-N). The base site (150) comprises timer (266) for calculating a time between a first of the at least two successive paging transmissions, and counter (266) for counting a number of batches to be transmitted in the at least two successive paging transmissions. A base site processor (254), coupled to the timer/counter (266), processes the paging information. The base site processor (254) comprises encoder (262) for encoding a portion of the first of the at least two successive paging transmissions with the calculated time and the number batches to be transmitted in the first paging transmission. A base site transmitter (252), coupled to the base site processor (254), transmits the at least two successive paging transmissions according to the calculated time to a plurality of selective call receivers (200). The selective call receiver (200) comprises a receiver (204) for receiving the paging transmissions. Decoder (206), coupled to the receiver (204)s, for decoding the number of batches (1-to-N) being transmitted therein and the time to a next paging transmission. Power switch (210), coupled the decoder, for disabling and enabling a power supply to the receiver (204) for receiving an assigned frame (F0-F7) of the plurality of batches (1-to-N). The power switch (210), being further responsive to the plurality of batches being decoded, disables and enables the power supply to the receiver for receiving successive paging transmissions.
    • 一种选呼接收机系统(150,200)包括发送具有多个批次(1至N)的寻呼信息(100)的基站(150)。 基站(150)包括用于计算所述至少两个连续寻呼传输中的第一个寻呼传输之间的时间的计时器(266)和用于计数要在所述至少两个连续寻呼传输中发送的批次数的计数器(266)。 耦合到定时器/计数器(266)的基站处理器(254)处理寻呼信息。 基站处理器(254)包括编码器(262),用于对所述至少两个连续寻呼传输中的第一个的一部分进行编码,所计算的时间和要在第一寻呼传输中发送的号码批次。 耦合到基站处理器(254)的基站发射机(252)根据计算出的时间将至少两个连续的寻呼传输发送到多个选呼接收机(200)。 选呼接收机(200)包括用于接收寻呼传输的接收机(204)。 解码器(206),耦合到接收器(204),用于解码在其中发送的批次(1到N)的数量和到下一个寻呼传输的时间。 耦合解码器的电源开关(210)用于禁用并启用接收器(204)的电源,用于接收多个批(1至N)中的分配帧(F0-F7)。 功率开关(210)进一步响应被解码的多个批次,禁用并启用对接收机的电力供应以接收连续的寻呼传输。
    • 10. 发明授权
    • Method and system for identifying material composition based upon polarization trajectories
    • 基于极化轨迹识别材料组成的方法和系统
    • US07333897B2
    • 2008-02-19
    • US11296083
    • 2005-12-07
    • Glafkos StratisEric T. EatonSalvador Sibecas
    • Glafkos StratisEric T. EatonSalvador Sibecas
    • G01N31/00
    • G01N23/00
    • A system and method for determining a most likely material composition of an object. At least one respective stored radiation polarization transformation is stored for at least one material composition at a plurality of wavelengths. A transmitted electromagnetic signal with at least one wavelength within the plurality of wavelengths and that has a predetermined transmitted polarization profile is transmitted. The transmitted signal encounters an object and is received as at least one received signal. Processing determines a respective received polarization for each of the at least one wavelength of the received signal, determines a respective calculated polarization transformation between the transmitted polarization profile and the received polarization of the respective wavelength, for each of the at least one wavelength. The processing also compares the respective calculated polarization transformations to the at least one respective stored radiation polarization transformations for at least one of the plurality of material compositions and based on those comparisons, estimates a most likely material composition for the object.
    • 一种用于确定物体的最可能的材料组成的系统和方法。 对于多个波长的至少一种材料组合存储至少一个相应的存储的辐射偏振变换。 传输具有多个波长内的至少一个波长并且具有预定的透射偏振曲线的透射电磁信号。 发送的信号遇到一个对象,并被接收为至少一个接收信号。 处理确定接收信号的至少一个波长中的每一个的相应的接收极化,确定针对所述至少一个波长中的每个波长的所发送的偏振曲线和相应波长的接收极化之间的相应计算的偏振变换。 该处理还将针对至少一个材料组合物的至少一个相应的存储的辐射极化转换相对于所计算的偏振变换进行比较,并且基于这些比较,估计对象的最可能的材料组成。