Systems and methods for sharing reference frequency signals within a wireless mobile terminal between a wireless transceiver and a global positioning system receiver
    31.
    发明授权
    Systems and methods for sharing reference frequency signals within a wireless mobile terminal between a wireless transceiver and a global positioning system receiver 有权
    用于在无线收发器和全球定位系统接收器之间的无线移动终端内共享参考频率信号的系统和方法

    公开(公告)号:US06424826B1

    公开(公告)日:2002-07-23

    申请号:US09497543

    申请日:2000-02-03

    CPC classification number: H04B1/3805 G01S19/235

    Abstract: A wireless mobile terminal for a wireless communication system comprises a wireless transceiver, a global positioning system (GPS) receiver, wherein the wireless transceiver and the GPS receiver share a frequency reference signal. The frequency reference signal can be multiplied by an integer multiple to create a first local oscillator for a signal conversion to an intermediate frequency for signal processing of the GPS signal. In addition, the frequency reference signal can also be divided into a lower frequency to create a second local oscillator for a conversion to a second intermediate frequency. The frequency reference signal can also be divided to create a frequency necessary for other signal processing, such as an analog-to-digital converter sampling signal at the GPS receiver. The frequency reference signal can be taken from different places within the frequency synthesis mechanism of the wireless transceiver. For example, in one embodiment the frequency reference signal is a reference oscillator signal, in another embodiment the frequency reference signal is a radio frequency signal, and in yet another embodiment the frequency reference signal is a radio frequency control signal. Frequency error can be removed from the frequency reference signal by locking to a base station carrier.

    Abstract translation: 一种用于无线通信系统的无线移动终端包括无线收发器,全球定位系统(GPS)接收器,其中无线收发器和GPS接收器共享频率参考信号。 频率参考信号可以乘以整数倍以创建用于信号转换为中频的第一本地振荡器用于GPS信号的信号处理。 此外,频率参考信号也可以被分成较低的频率以产生用于转换到第二中频的第二本地振荡器。 频率参考信号也可以被划分以产生其他信号处理所需的频率,例如在GPS接收机处的模数转换器采样信号。 频率参考信号可以从无线收发器的频率合成机制内的不同地方获取。 例如,在一个实施例中,频率参考信号是参考振荡器信号,在另一个实施例中,频率参考信号是射频信号,在另一个实施例中,频率参考信号是射频控制信号。 通过锁定到基站载波,可以从频率参考信号中消除频率误差。

    Method and apparatus for tuning oscillator to a selected frequency
    32.
    发明授权
    Method and apparatus for tuning oscillator to a selected frequency 失效
    将振荡器调谐到选定频率的方法和装置

    公开(公告)号:US06380809B1

    公开(公告)日:2002-04-30

    申请号:US09507392

    申请日:2000-02-18

    CPC classification number: H03L7/146 H03L7/189

    Abstract: The present invention discloses an apparatus and method for tuning an oscillator to a selected frequency during power measurements of a neighbor list. In response to a received request for the oscillator to tune to a selected frequency, a controller associated with a switch determines whether the request comprises a first request for the oscillator to tune to the selected frequency. If so, the switch is placed in a first position, and the oscillator is provided a voltage control signal from a phase locked loop. The voltage control signal applied to the input of the oscillator is also saved at a location associated with the selected frequency. If the controller determines that the request does not comprise a first request for the selected frequency, a previously saved voltage control signal associated with the selected frequency is applied to the input of the oscillator by placing the switch in a second position. In either case, the oscillator is tuned to the selected frequency responsive to the applied voltage control signal.

    Abstract translation: 本发明公开了一种用于在邻近列表的功率测量期间将振荡器调谐到选定频率的装置和方法。 响应于接收到的振荡器调谐到所选频率的请求,与开关相关联的控制器确定该请求是否包括用于振荡器调谐到所选频率的第一请求。 如果是这样,则将开关置于第一位置,并且从振荡器提供来自锁相环的电压控制信号。 施加到振荡器的输入端的电压控制信号也保存在与所选频率相关联的位置处。 如果控制器确定请求不包括对所选频率的第一请求,则将与所选频率相关联的先前保存的电压控制信号通过将开关置于第二位置而被施加到振荡器的输入。 在任一种情况下,响应所施加的电压控制信号将振荡器调谐到所选择的频率。

    Linear modulation using a linear and a non-linear amplifier
    33.
    发明授权
    Linear modulation using a linear and a non-linear amplifier 有权
    使用线性和非线性放大器进行线性调制

    公开(公告)号:US06359506B1

    公开(公告)日:2002-03-19

    申请号:US09710537

    申请日:2000-11-09

    CPC classification number: H03F1/0294 H03F1/0288

    Abstract: A power amplifier uses a modulation technique that varies amplitude of a drive signal and, optionally, phase angle of the drive signal. The power amplifier comprises two coupled amplifiers, a first one of which is operated saturated to produce a constant voltage output. The first amplifier is coupled to a second one of the amplifiers via a quarter wave transmission line. The second amplifier is operated in a linear mode to deliver an output signal controlled by an amplitude-modulating signal. The amplitude-modulating signal may be a bipolar modulation signal that produces both positive and negative outputs from the second amplifier that add to or subtract from the output from the first amplifier to develop at a load impedance net output signal amplitudes varying between a minimum or “trough” amplitude and a maximum or “crest” amplitude. The coupling of the first and second amplifiers through a quarter-wave line allows the signal current of the second amplifier to modulate the effective load impedance seen by the first amplifier to provide efficient amplifier coupling.

    Abstract translation: 功率放大器使用调制技术来改变驱动信号的幅度和可选的驱动信号的相位角。 功率放大器包括两个耦合放大器,其中第一个放大器工作饱和以产生恒定电压输出。 第一放大器经由四分之一波传输线耦合到第二放大器。 第二放大器以线性模式操作,以传送由幅度调制信号控制的输出信号。 幅度调制信号可以是双极性调制信号,其产生来自第二放大器的正和负输出,其从第一放大器的输出加或减,以在最小或“最小值”之间变化的负载阻抗净输出信号幅度发展, 谷“幅度和最大或”波峰“振幅。 第一和第二放大器通过四分之一波长线的耦合允许第二放大器的信号电流调制由第一放大器看到的有效负载阻抗以提供有效的放大器耦合。

    Method and apparatus for determining the remaining operation time of a mobile communication unit
    34.
    发明授权
    Method and apparatus for determining the remaining operation time of a mobile communication unit 有权
    用于确定移动通信单元的剩余操作时间的方法和装置

    公开(公告)号:US06236214B1

    公开(公告)日:2001-05-22

    申请号:US09471603

    申请日:1999-12-23

    CPC classification number: G01R31/3648 G01R31/361 G01R31/3675

    Abstract: A method and apparatus for determining the capacity in a battery-powered communication. The method includes the steps of measuring a temperature of the battery, measuring a charging voltage and current, and determining a value corresponding to the number of charge cycles associated with the battery. Using these parameters, a capacity value corresponding to at least one of the parameters is computed based on stored database information. The apparatus includes a microprocessor linked to the battery. The microprocessor estimates the capacity present in the battery and calculates the remaining amount of battery capacity. After determining the present mode of battery power discharge, the microprocessor calculates the remaining available power time for the battery corresponding to previously read operational parameters.

    Abstract translation: 一种用于确定电池供电通信中的容量的方法和装置。 该方法包括以下步骤:测量电池的温度,测量充电电压和电流,以及确定与电池相关联的充电次数对应的值。 使用这些参数,基于存储的数据库信息来计算对应于至少一个参数的容量值。 该装置包括连接到电池的微处理器。 微处理器估计电池中存在的容量并计算电池容量的剩余量。 在确定电池电源放电的当前模式之后,微处理器计算对应于先前读取的操作参数的电池的剩余可用功率时间。

    Systems and methods for converting a stream of complex numbers into a modulated radio power signal
    35.
    发明授权
    Systems and methods for converting a stream of complex numbers into a modulated radio power signal 有权
    用于将复数流转换成调制无线电功率信号的系统和方法

    公开(公告)号:US06201452B1

    公开(公告)日:2001-03-13

    申请号:US09208912

    申请日:1998-12-10

    CPC classification number: H04L27/2071 H03F1/0294 H03F3/24

    Abstract: Modulation systems and methods can modulate a stream of complex numbers representing a desired modulation of a radio signal by representing a real part of each of the complex numbers in a stream of complex numbers representing a desired modulation of a radio signal, as a plurality of first digits of decreasing numerical significance and representing an imaginary part of each of the complex numbers as a plurality of second digits of decreasing numerical significance. A respective one of the first digits and a respective one of the second digits of like numerical significance are grouped to form a plurality of phase control symbols. A respective phase control symbol is then used to control the phase of an output signal at the radio carrier frequency from a respective one of the plurality of power amplifiers. Each of the power amplifiers provides an output power level that is related to the numerical significance of the first and second digits that form the associated phase control symbol. The output power levels of the plurality of power amplifiers are combined to thereby form the modulated radio power signal.

    Abstract translation: 调制系统和方法可以通过将表示无线电信号的期望调制的复数流中的每个复数的实数部分表示为多个第一数据来调制表示无线电信号的期望调制的复数流 数字值减小的数值,并将每个复数的虚部表示为具有递减数值含义的多个第二数字。 第一数字中的相应一个和具有相似数值含义的第二数字的相应一个被分组以形成多个相位控制符号。 然后使用相应的相位控制符号来控制来自多个功率放大器中的相应一个的无线电载波频率处的输出信号的相位。 每个功率放大器提供与形成相关联的相位控制符号的第一和第二数字的数值意义相关的输出功率电平。 多个功率放大器的输出功率电平被组合从而形成调制无线电功率信号。

    Circuit and method for linearizing amplitude modulation in a power amplifier
    36.
    发明授权
    Circuit and method for linearizing amplitude modulation in a power amplifier 有权
    用于在功率放大器中线性化幅度调制的电路和方法

    公开(公告)号:US06191653B1

    公开(公告)日:2001-02-20

    申请号:US09195384

    申请日:1998-11-18

    CPC classification number: H03C5/00 H03F1/3241 H03F2200/331

    Abstract: An RF amplifier includes an oscillator developing an RF input signal to be transmitted. A power amplifier receives the RF input signal and amplifies the RF input signal to develop an RF output signal. An amplifier control is operatively associated with the oscillator and the power amplifier. The amplifier control includes means for developing a control signal representing a desired amplitude of the RF output signal. A memory stores correction information correlating actual amplitude of the RF output signal relative to the control signal, and a control varies the power amplifier circuit supply voltage using the control signal modified responsive to the correction information for the desired amplitude.

    Abstract translation: RF放大器包括形成要传输的RF输入信号的振荡器。 功率放大器接收RF输入信号并放大RF输入信号以产生RF输出信号。 放大器控制与振荡器和功率放大器可操作地相关联。 放大器控制包括用于开发表示RF输出信号的期望幅度的控制信号的装置。 存储器存储与RF输出信号的实际振幅相对于控制信号相关的校正信息,并且控制使用响应于校正信息修改了所需幅度的控制信号来改变功率放大器电路电源电压。

    Method and apparatus for locating a mobile unit
    37.
    发明授权
    Method and apparatus for locating a mobile unit 失效
    用于定位移动单元的方法和装置

    公开(公告)号:US6035202A

    公开(公告)日:2000-03-07

    申请号:US994675

    申请日:1997-12-19

    CPC classification number: H04W64/00

    Abstract: A system for locating a mobile transceiver is disclosed. A first receiver associated with a mobile transceiver detects signals transmitted from fixed transmitter locations broadcasting, for example, FM signals. A demodulated audio portion of the received FM signals, along with an encoded representation of the channel of the transmitted FM signal, are transmitted to a second receiver at a known location. The second receiver is tuned to the channel indicated by the channel data. A correlator time-shifts the received audio portion of the FM signal until a correlation with the received signal at the second receiver is achieved. This process may be repeated for several transmitted FM signals. The time differences between the signals received at the first and second receivers along with the known location of the FM transmitters are used to determine the location of the mobile unit.

    Abstract translation: 公开了一种用于定位移动收发机的系统。 与移动收发机相关联的第一接收机检测从广播的固定发射机位置发射的信号,例如FM信号。 所接收的FM信号的解调音频部分连同发送的FM信号的信道的编码表示在已知位置被发送到第二接收机。 第二个接收机被调谐到通道数据指示的通道。 相关器对FM信号的接收到的音频部分进行时移,直到实现与第二接收机处的接收信号的相关。 对于几个发射的FM信号可以重复该过程。 使用在第一和第二接收机处接收的信号与FM发射机的已知位置之间的时间差来确定移动单元的位置。

    Integrated circuit for achieving pattern recognition
    38.
    发明授权
    Integrated circuit for achieving pattern recognition 失效
    用于实现模式识别的集成电路

    公开(公告)号:US5262632A

    公开(公告)日:1993-11-16

    申请号:US890976

    申请日:1992-05-29

    CPC classification number: G06K9/6202 G06N3/0675

    Abstract: An apparatus for massive computation in integrated circuits provides the ability to calculate multiple dot products between an image focused on the integrated circuit surface and many reference patterns built into the integrated circuit, and then give an output indication for all those reference patterns where the dot product exceeds a threshold. The implementation, using current mirrors for multiplication with fixed constants, permits the integrated circuit to achieve large amounts of computation per unit area. This apparatus permits a large input data bandwidth, and by virtue of having enough computation capacity to complete a processing task on one chip, the output bandwidth is greatly reduced as well. The apparatus is employed, as an example, in a neural network. A set of connections between nodes that modify the value of the signal passed from one node to the next. Often many connections impinge on a node, and the summation of values at the node is further modified by a nonlinear function such as a threshold and amplitude limiter. Values at the input nodes represent the signals to be evaluated by the network, and values at the outputs represent an evaluation by the network of the input signals. For instance, the input could be image pixels and the outputs could represent possible patterns to which the image could be assigned. The connections between weights are often determined and modified by training data, but they can also be prespecified in total or in part based on other information about the task of the network.

    Abstract translation: 用于集成电路中大量计算的装置提供了计算聚焦在集成电路表面上的图像与内置于集成电路中的许多参考图案之间的多个点积的能力,然后给出所有参考图形的输出指示,其中点积 超过阈值。 使用电流镜与固定常数进行乘法的实现允许集成电路实现每单位面积的大量计算。 该装置允许大的输入数据带宽,并且由于具有足够的计算能力来在一个芯片上完成处理任务,所以输出带宽也大大降低。 作为示例,该装置在神经网络中被使用。 节点之间的一组连接,用于修改从一个节点传递到下一个节点的信号的值。 通常,许多连接撞击在节点上,并且通过诸如阈值和幅度限制器的非线性函数进一步修改节点处的值的求和。 输入节点的值表示要由网络评估的信号,输出端的值表示网络对输入信号的评估。 例如,输入可以是图像像素,并且输出可以表示可以分配图像的可能模式。 权重之间的连接通常由训练数据确定和修改,但也可以基于关于网络任务的其他信息全部或部分地预先指定权重之间的连接。

    Wireless communications to receiver devices using control terminal communication link set-up
    39.
    发明授权
    Wireless communications to receiver devices using control terminal communication link set-up 失效
    使用控制终端通信链路建立对接收机设备的无线通信

    公开(公告)号:US08782177B2

    公开(公告)日:2014-07-15

    申请号:US11093406

    申请日:2005-03-30

    CPC classification number: H04L67/04 H04L67/02 H04W4/00 H04W76/25

    Abstract: Methods of delivering electronic content include exchanging communications with a network access point from a control terminal to establish a communication link configured for two-way communications. Electronic content transmitted by the network access point is received at a remote terminal over the established communication link without providing responsive communications to the network access point from the remote terminal.

    Abstract translation: 交付电子内容的方法包括从控制终端与网络接入点交换通信,以建立为双向通信配置的通信链路。 通过所建立的通信链路在远程终端处接收由网络接入点发送的电子内容,而不向远程终端提供对网络接入点的响应通信。

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