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    Method for phase locking in a phase lock loop
    11.
    发明授权
    Method for phase locking in a phase lock loop 有权
    锁相环锁相方法

    公开(公告)号：US06744323B1

    公开(公告)日：2004-06-01

    申请号：US09943149

    申请日：2001-08-30

    Applicant: Nathan Y. Moyal ,  Mark R. Gehring ,  Russell Moen ,  Lawrence Ragan

    Inventor： Nathan Y. Moyal ,  Mark R. Gehring ,  Russell Moen ,  Lawrence Ragan

    IPC: H03L700

    CPC classification number: H03L7/10 ,  H03L7/095 ,  H03L7/18 ,  Y10S331/02

    Abstract: An apparatus comprising a phase lock loop (PLL) and a lock circuit. The PLL may be configured to multiply an input frequency in response to a lock signal. The lock circuit may be configured to generate the lock signal. The PLL may also be configured to select a reference frequency as (i) the input frequency when in a first mode and (ii) a divided frequency of the input frequency when in a second mode.

    Abstract translation: 一种包括锁相环（PLL）和锁电路的装置。 PLL可以被配置为响应于锁定信号来乘以输入频率。 锁定电路可以被配置为产生锁定信号。 PLL还可以被配置为在第一模式中选择参考频率为（i）输入频率，以及（ii）当处于第二模式时输入频率的分频。

    Digital filter and method of design
    12.
    发明授权
    Digital filter and method of design 失效
    数字滤波器和设计方法

    公开(公告)号：US5404322A

    公开(公告)日：1995-04-04

    申请号：US863313

    申请日：1992-03-27

    Applicant: Mark R. Gehring

    Inventor： Mark R. Gehring

    IPC: H03H15/00 ,  G06F17/10 ,  H03H17/02 ,  H03H17/06 ,  H03H21/00 ,  H04B3/04 ,  G06F15/31

    CPC classification number: H03H17/06

    Abstract: A digital filter is designed by characterizing a desired filter passband in the frequency domain, transforming this representation into the time domain, selecting weighting coefficients at periodically spaced intervals from this transformed function, and weighting the coefficients with a Gaussian windowing function. This function may take the form:.sub.e -.vertline.( 2 n-N)/A.vertline..sup.Pwhere:A=N(-ln.epsilon.).sup.-1/P; .epsilon.

    Abstract translation: 通过在频域中表征期望的滤波器通带来设计数字滤波器，将该表示变换为时域，从该变换函数中选择以周期性间隔的间隔的加权系数，并用高斯窗口函数对系数进行加权。 该函数可以采用以下形式：e- |（2 n-N）/ A | P其中：A = N（-lnε）-1 / P; epsilon <1 epsilon = n = 0和n = N（缩小比）所需的窗口值; N =（F.I.R.抽头数）-1; 而P =任意幂。

    Direct conversion FM receiver with offset
    13.
    发明授权
    Direct conversion FM receiver with offset 失效
    直接转换FM接收机带偏移

    公开(公告)号：US4944025A

    公开(公告)日：1990-07-24

    申请号：US229976

    申请日：1988-08-09

    Applicant: Mark R. Gehring ,  Richard R. Suter ,  Lawrence H. Ragan

    Inventor： Mark R. Gehring ,  Richard R. Suter ,  Lawrence H. Ragan

    IPC: H03B21/02 ,  H03D7/16 ,  H03J7/04 ,  H04B1/30

    CPC classification number: H03D7/166 ,  H03J7/04 ,  H04B1/30 ,  H03B21/02 ,  H03B2200/008 ,  H03D2200/0047 ,  H03D7/161

    Abstract: A direct conversion FM receiver that includes AC coupling and automatic gain control employs an offset frequency at the first local oscillator. The offset frequency prevents the frequency spectrum occupied by the signal modulation from being affected by AC coupling. The offset frequency is chosen so that it translates the frequency spectrum of the received signal outside the DC notch created in the spectrum by the AC coupling. To conserve battery supplied power, an error amplifier coupled between the output of the receiver and the first local oscillator maintains the offset frequency after it has been established by a frequency synthesizer, which is then turned off.

    Abstract translation: 包括AC耦合和自动增益控制的直接转换FM接收器在第一本地振荡器处采用偏移频率。 偏移频率可防止信号调制所占用的频谱受交流耦合的影响。 偏移频率被选择为使得其通过AC耦合将接收信号的频谱转换到在频谱中产生的DC陷波之外。 为了节约电池供电功率，耦合在接收器的输出端和第一本地振荡器之间的误差放大器在被频率合成器建立之后维持偏移频率，然后被关断。

    Circuit for creating tracking transconductors of different types
    16.
    发明授权
    Circuit for creating tracking transconductors of different types 有权
    用于创建不同类型的跟踪转导体的电路

    公开(公告)号：US07642845B2

    公开(公告)日：2010-01-05

    申请号：US11467067

    申请日：2006-08-24

    Applicant: Mark R. Gehring ,  Joseph Stenger

    Inventor： Mark R. Gehring ,  Joseph Stenger

    IPC: G01R19/00

    CPC classification number: H03F3/191 ,  H03F3/45475 ,  H03F2200/453 ,  H03F2203/45288

    Abstract: Systems and method for tracking different types of transconductance cells is shown and described. In these multi-cell systems, the addition of one or more tracking control modules allows circuit designers to advantageously incorporate multiple transconductor topologies and their uniquely beneficial characteristics into their designs, without eradicating its centralized multi-cell tuning functionality.

    Abstract translation: 示出并描述了用于跟踪不同类型的跨导单元的系统和方法。 在这些多单元系统中，添加一个或多个跟踪控制模块允许电路设计者有利地将多个跨导体拓扑及其独特的有益特征结合到其设计中，而无需消除其集中的多单元调谐功能。

    Frequency offset and method of offsetting
    17.
    发明授权
    Frequency offset and method of offsetting 有权
    频偏和抵消方法

    公开(公告)号：US07564923B2

    公开(公告)日：2009-07-21

    申请号：US11261166

    申请日：2005-10-27

    Applicant: Mark R. Gehring ,  Russell R. Moen ,  Brent R. Jensen

    Inventor： Mark R. Gehring ,  Russell R. Moen ,  Brent R. Jensen

    IPC: H04L27/12 ,  H04L27/20

    CPC classification number: H04L27/2092

    Abstract: A transmitter digital signal processor (DSP) circuit has a transmit frequency represented by n-bit data output from a look up table (LUT). The n-bit data is outputted to an n-bit accumulator structured to overflow at a rate based on the output n-bit data to output a phase. The circuit further has device structured to add an n-bit signed constant to the accumulator to offset the frequency represented by the n-bit data output from the LUT. A transceiver on a semiconductor chip may include as part of a transmitter circuit, a transmit DSP circuit that has the LUT, accumulator and device providing an n-bit signed constant to the accumulator to offset a transmit frequency in order to allow a receiver circuit on the transceiver to communicate directly with the transmitter circuit, and thus allowing testing of the transceiver.

    Abstract translation: 发射机数字信号处理器（DSP）电路具有由查找表（LUT）输出的n位数据表示的发射频率。 n比特数据被输出到构成为以基于输出n比特数据的速率溢出的n比特累加器，以输出相位。 电路还具有被构造为向累加器添加n位有符号常数以便偏移由LUT输出的n位数据表示的频率的器件。 半导体芯片上的收发器可以包括作为发射机电路的一部分的发射DSP电路，其具有LUT，累加器和设备向累加器提供n位有符号常数以偏移发射频率，以允许接收机电路 收发器与发射机电路直接通信，从而允许对收发器进行测试。

    Demodulator architecture and associated methods
    18.
    发明授权
    Demodulator architecture and associated methods 有权
    解调器架构和相关方法

    公开(公告)号：US07107036B1

    公开(公告)日：2006-09-12

    申请号：US10295662

    申请日：2002-11-15

    Applicant: Mark R. Gehring

    Inventor： Mark R. Gehring

    IPC: H04B1/16

    CPC classification number: H04B1/28 ,  H03D3/007

    Abstract: Embodiments of a frequency modulated (FM) demodulator and associated methods are generally described. According to but one example embodiment, an apparatus is disclosed comprising a receiver front-end, to receive a signal from one or more antenna(e) and generate quadrature components of the received signal, and a frequency-shifted, cross-multiplied differentiator demodulator, coupled with the receiver front-end, to generate a demodulated representation of the received signal centered at a select intermediate frequency.

    Abstract translation: 通常描述调频（FM）解调器和相关方法的实施例。 根据但是一个示例性实施例，公开了一种包括接收机前端的装置，用于从一个或多个天线（e）接收信号并产生接收信号的正交分量，以及频移的十字乘法微分解调器 与接收器前端耦合以产生以选择中频为中心的接收信号的解调表示。

    Wrist band for wrist-mounted radio with an uninsulated buckle
    19.
    发明授权
    Wrist band for wrist-mounted radio with an uninsulated buckle 失效
    手腕带手腕带，带有非绝缘扣

    公开(公告)号：US5134724A

    公开(公告)日：1992-07-28

    申请号：US520650

    申请日：1990-05-08

    Applicant: Mark R. Gehring ,  Richard R. Suter ,  Lawrence H. Ragan

    Inventor： Mark R. Gehring ,  Richard R. Suter ,  Lawrence H. Ragan

    IPC: H01Q1/27 ,  H04B1/38

    CPC classification number: H04B1/385 ,  H01Q1/273

    Abstract: A wrist band for a wrist-mounted radio system is provided wherein a metallic wrist-band buckle need not be insulated. The system includes a radio receiver which includes a differential input in a wrist-band antenna with a "null point" at the location of the buckle. The wrist-band antenna is insulated from the wearer's body at all points except at the buckle.

    Abstract translation: 提供了一种用于腕上无线电系统的腕带，其中金属腕带带扣不需要绝缘。 该系统包括无线电接收机，该无线电接收机包括带扣天线的差分输入，在带扣位置具有“零点”。 手腕带天线除扣带外的所有点与佩戴者的身体绝缘。

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