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    • 4. 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。
    • 7. 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。
    • 9. 发明授权
    • Alerting system for a communication receiver
    • 通讯接收机的告警系统
    • US5272475A
    • 1993-12-21
    • US807019
    • 1991-12-09
    • Eric T. EatonVon A. MockMatthew J. Stanislawski
    • Eric T. EatonVon A. MockMatthew J. Stanislawski
    • G08B6/00G08B7/00
    • G08B6/00
    • An alerting system for a selective call communication receiver (10) which includes a battery (26A, 26B) for supplying energy at a first supply rate and a receiver (14) coupled thereto for receiving transmitted selective call message signals includes a decoder (16), a power source (44), an annunciator (34) and a charging circuit (36). The decoder (16) is coupled to the battery (26A, 26B) and decodes the received selective call message signals and generates an alert signal output in response to the received selective call message signals. The power source (44) is capable of being charged and supplies energy at a second supply rate. The annunciator (34) is coupled to the power source (44) and is responsive to the alert signal output for providing a sensible alert. The annunciator (34) consumes energy at the second supply rate when providing the sensible alert. The charging circuit (36) is coupled to the battery (26A, 26B) and is responsive to the sensible alert being generated for charging the power source (44) from the battery (26A, 26B) to replenish the energy consumed during the generation of the sensible alert.
    • 一种用于选择性呼叫通信接收机(10)的警报系统,其包括用于以第一供应速率提供能量的电池(26A,26B)和与其耦合的接收器(14),用于接收传送的选呼信号包括解码器(16) ,电源(44),信号器(34)和充电电路(36)。 解码器(16)耦合到电池(26A,26B)并且解码所接收的选择呼叫消息信号,并且响应于所接收的选呼信号而产生报警信号输出。 电源(44)能够被充电并且以第二供应速率提供能量。 信号器(34)耦合到电源(44)并且响应于警报信号输出以提供敏感警报。 当提供敏感警报时,报警器(34)以第二供应速率消耗能量。 充电电路(36)耦合到电池(26A,26B),并且响应于从电池(26A,26B)向电源(44)充电的敏感警报,以补充在生成期间消耗的能量 明智的警报。