公开(公告)号：US20130039368A1

公开(公告)日：2013-02-14

申请号：US13208698

申请日：2011-08-12

Applicant: Daniel B. Schwartz ,  David Harnishfeger ,  Jeffrey D. Ganger ,  George B. Norris ,  Bing Xu ,  Mark Alan Kirschenmann ,  Claudio Rey

Inventor： Daniel B. Schwartz ,  David Harnishfeger ,  Jeffrey D. Ganger ,  George B. Norris ,  Bing Xu ,  Mark Alan Kirschenmann ,  Claudio Rey

IPC: H04L27/00 ,  H04J1/00

CPC classification number: H04W72/00 ,  H04L5/0007 ,  H04L5/003 ,  H04L27/04 ,  H04W72/0453 ,  H04W88/02 ,  H04W88/08

Abstract: In accordance with some embodiments of the present disclosure, a method may include determining a range of frequencies allocated to resource blocks to be transmitted during a subsequent sub-frame slot or sounding reference symbol sub-slot. The method may also include determining an approximate center frequency of the range of frequencies. The method may additionally include modulating resource blocks of the sub-frame or sounding reference symbol sub-slot at the approximate center frequency. The method may further include transmitting the modulated resource blocks at the approximate center frequency.

Abstract translation: 根据本公开的一些实施例，一种方法可以包括确定分配给在随后的子帧时隙或探测参考符号子时隙期间发送的资源块的频率范围。 该方法还可以包括确定频率范围的近似中心频率。 该方法还可以包括调制子帧或探测参考符号子时隙的近似中心频率的资源块。 该方法还可以包括以近似的中心频率发射调制的资源块。

公开(公告)号：US07778154B2

公开(公告)日：2010-08-17

申请号：US12054517

申请日：2008-03-25

Applicant: Bing Xu ,  Pravin Premakanthan ,  Daniel B. Schwartz

Inventor： Bing Xu ,  Pravin Premakanthan ,  Daniel B. Schwartz

IPC: H04J7/00

CPC classification number: H04B1/0475 ,  H03G3/3042 ,  H04B2001/0416 ,  H04B2215/061

Abstract: A technique of operating a communication device includes identifying a signal null associated with a signal to be transmitted on a first communication channel. A channel gain of the first communication channel is adjusted at a time that substantially coincides with the signal null to reduce transient noise spectrum coupled from the first communication channel to one or more second communication channels.

Abstract translation: 操作通信设备的技术包括识别与要在第一通信信道上发送的信号相关联的信号零。 第一通信信道的信道增益在与信号为零的基本一致的时刻被调整，以减少从第一通信信道耦合到一个或多个第二通信信道的瞬态噪声频谱。

公开(公告)号：US20100009642A1

公开(公告)日：2010-01-14

申请号：US11722296

申请日：2004-12-23

Applicant: Patrick J. Pratt ,  Michael A. Milyard ,  Daniel B. Schwartz ,  Philip C. Warder

Inventor： Patrick J. Pratt ,  Michael A. Milyard ,  Daniel B. Schwartz ,  Philip C. Warder

IPC: H04B1/04

CPC classification number: H03F1/32 ,  H03F1/0244 ,  H03F1/3247 ,  H03F1/3252 ,  H03F3/195 ,  H03F3/245

Abstract: A wireless communication unit comprises a transmitter having an analogue feedback power control loop with an input and a power amplifier having a power amplifier output, where the analogue feedback power control loop is arranged to feedback a signal to the input to set an output power level of the transmitter. The wireless communication unit further comprises an outer digital loop operably coupled from the power amplifier output to the transmitter.In this manner, the inner analogue loop is used to linearise a response obtained from the power amplifier and an outer digital loop wherein the outer digital loop controls the inner analogue loop with regard to saturation detection and correction as well as facilitating multi-mode operation of the wireless communication unit.

Abstract translation: 无线通信单元包括具有模拟反馈功率控制环路的发射机，具有输入端和功率放大器，功率放大器具有功率放大器输出，其中模拟反馈功率控制环路被布置成将信号反馈到输入端以设置输出功率电平 发射机。 无线通信单元还包括可操作地从功率放大器输出耦合到发射器的外部数字环路。 以这种方式，内部模拟环路用于线性化从功率放大器和外部数字环路获得的响应，其中外部数字环路相对于饱和度检测和校正控制内部模拟环路以及促进多模式操作 无线通信单元。

公开(公告)号：US20090280758A1

公开(公告)日：2009-11-12

申请号：US11722293

申请日：2004-12-23

Applicant: Patrick J. Pratt ,  Michael A. Milyard ,  Daniel B. Schwartz ,  Philip C. Warder

Inventor： Patrick J. Pratt ,  Michael A. Milyard ,  Daniel B. Schwartz ,  Philip C. Warder

IPC: H01Q11/12 ,  H04L27/20

CPC classification number: H04W52/52 ,  H03G3/3047

Abstract: A wireless communication unit comprises a transmitter having an analogue feedback power control loop having a power control function arranged to set an output power level of the transmitter. The power control function comprises a predictor sub-system arranged to reduce sensitivity to loop latency of the analogue feedback power control loop.The use of a predictor sub-system provides reduced sensitivity to loop latency, gain variations and delay.

Abstract translation: 无线通信单元包括具有模拟反馈功率控制环路的发射机，该模拟反馈功率控制环路具有布置成设置发射机的输出功率电平的功率控制功能。 功率控制功能包括预测器子系统，其被布置为降低模拟反馈功率控制回路的环路延迟的灵敏度。 使用预测器子系统可以降低环路延迟，增益变化和延迟的灵敏度。

公开(公告)号：US20090245288A1

公开(公告)日：2009-10-01

申请号：US12054517

申请日：2008-03-25

Applicant: Bing Xu ,  Pravin Premakanthan ,  Daniel B. Schwartz

Inventor： Bing Xu ,  Pravin Premakanthan ,  Daniel B. Schwartz

IPC: H04J13/00

CPC classification number: H04B1/0475 ,  H03G3/3042 ,  H04B2001/0416 ,  H04B2215/061

Abstract: A technique of operating a communication device includes identifying a signal null associated with a signal to be transmitted on a first communication channel. A channel gain of the first communication channel is adjusted at a time that substantially coincides with the signal null to reduce transient noise spectrum coupled from the first communication channel to one or more second communication channels.

Abstract translation: 操作通信设备的技术包括识别与要在第一通信信道上发送的信号相关联的信号零。 第一通信信道的信道增益在与信号为零的基本一致的时刻被调整，以减少从第一通信信道耦合到一个或多个第二通信信道的瞬态噪声频谱。

公开(公告)号：US06856266B2

公开(公告)日：2005-02-15

申请号：US10490875

申请日：2002-09-09

Applicant: Patrick Clement ,  Nadim Khlat ,  Daniel B Schwartz

Inventor： Patrick Clement ,  Nadim Khlat ,  Daniel B Schwartz

IPC: H03M3/02 ,  H03M3/00 ,  H03M1/00 ,  H03M7/00

CPC classification number: H03M3/496

Abstract: A Multi-Rate Analog-to-Digital Converter (19) is coupled to a single crystal oscillator (17) as a reference clock and has at least two separate channels arranged to sample and convert input data at two differing clock rates. Each channel derives a clock signal from the reference clock. Associated with each of the channels is a Sigma-Delta converter (10a, 10b) comprising a modulator (12), a filter (14) and a resampler (18). The modulator (12) receives input data and provides a data signal to the filter (14), which itself provides a filtered data signal to the associated data resampler. The data resampler resamples the data and provides a digital output signal. As there is sampling in the digital domain the advantages associated with signal processing, speed and low noise injection are obtained. Similarly as the output of the modulator (12) is in digital form, it can be manipulated and processed readily and with the existing software.

Abstract translation: 多速率模数转换器（19）耦合到作为参考时钟的单晶振荡器（17），并且具有至少两个单独的通道，其布置成以两个不同的时钟速率对输入数据进行采样和转换。 每个通道从参考时钟导出时钟信号。 与每个通道相关联的是包括调制器（12），滤波器（14）和重采样器（18）的Σ-Δ转换器（10a，10b）。 调制器（12）接收输入数据并向滤波器（14）提供数据信号，滤波器本身将经过滤波的数据信号提供给相关联的数据重采样器。 数据重采样器重新采样数据并提供数字输出信号。 由于在数字领域中采用了与信号处理，速度和低噪声注入相关的优点。 类似地，当调制器（12）的输出是数字形式时，它可以容易地和现有的软件被操纵和处理。

公开(公告)号：US06834183B2

公开(公告)日：2004-12-21

申请号：US10287382

申请日：2002-11-04

Applicant: Gregory Black ,  Daniel B Schwartz ,  Kevin Traylor

Inventor： Gregory Black ,  Daniel B Schwartz ,  Kevin Traylor

IPC: H04B1118

CPC classification number: H01Q3/267 ,  H03C3/0925 ,  H03C3/0941 ,  H03C3/0975 ,  H03L7/1974

Abstract: Voltage controlled oscillator (VCO) gain tracking is used for programming modulation gain settings to minimize modulation distortion in a phase locked loop of a mobile station (10). A synthesizer (20) generates a tuning voltage (Vt) for controlling a frequency of a (VCO) modulated radio frequency signal. A controller (22) outputs a modulation data signal and includes an ADC (72) for receiving the tuning voltage from the synthesizer (20) on a VCO feedback loop (70), a gain control lookup table (LUT) (76) for storing gain setting calibration data for respective mobile station sub-bands, and a gain setting (DAC) (78) for outputting a modulation gain control signal to the synthesizer (20). The modulation gain setting calibration data is calibrated using a one-time or continuous calibration methodlogy during, respectively, a background or normal mode of operation.

Abstract translation: 压控振荡器（VCO）增益跟踪用于编程调制增益设置以使移动台（10）的锁相环中的调制失真最小化。 合成器（20）产生用于控制（VCO）调制的射频信号的频率的调谐电压（Vt）。 控制器（22）输出调制数据信号，并且包括用于在VCO反馈回路（70）上从合成器（20）接收调谐电压的ADC（72），用于存储的增益控制查找表（LUT） 增益设定各个移动台子频带的校准数据，以及用于向合成器（20）输出调制增益控制信号的增益设定（DAC）（78）。 分别在背景或正常操作模式下，使用一次或连续校准方法来校准调制增益设置校准数据。

公开(公告)号：US6091531A

公开(公告)日：2000-07-18

申请号：US15897

申请日：1998-01-30

Applicant: Daniel B. Schwartz ,  Christopher K. Y. Chun ,  Stephen G. Shook

Inventor： Daniel B. Schwartz ,  Christopher K. Y. Chun ,  Stephen G. Shook

IPC: H04B10/69 ,  H04B10/06

CPC classification number: H04B10/695 ,  H04B10/6932

Abstract: A differential charge and dump optoelectronic receiver for baseband digital optoelectronic data links is disclosed having a preamplifier and a voltage controlled current source that defines the tail current of a differential pair functioning as a two quadrant multiplier, and using capacitors as loads on the differential pair making said differential pair an integrator. The integrator provides a full differential output, part of which is fedback to control the gain of the preamplifier. In a preferred embodiment, one integrator pair is used to recover the data from a Manchester encoded data stream. In another preferred embodiment, two pairs of integrators are used for QPSK like codes.

Abstract translation: 公开了一种用于基带数字光电数据链路的差分充电和转储光电接收器，其具有前置放大器和电压控制电流源，其限定用作二象限乘法器的差分对的尾电流，并且使用电容器作为差分对上的负载 所述差分对是积分器。 积分器提供全差分输出，其中一部分反馈控制前置放大器的增益。 在优选实施例中，使用一个积分器对来从曼彻斯特编码数据流中恢复数据。 在另一个优选实施例中，两对积分器被用于QPSK相似代码。

公开(公告)号：US6023254A

公开(公告)日：2000-02-08

申请号：US798203

申请日：1997-02-10

Applicant: Earnest J. Johnson ,  Christopher K. Y. Chun ,  Barbara M. Foley ,  Daniel B. Schwartz ,  Douglas P. Fayden ,  Cary D. Perttunen

Inventor： Earnest J. Johnson ,  Christopher K. Y. Chun ,  Barbara M. Foley ,  Daniel B. Schwartz ,  Douglas P. Fayden ,  Cary D. Perttunen

IPC: G06F1/16 ,  H04N5/74 ,  G09G3/00

CPC classification number: G06F1/1639 ,  G06F1/1616 ,  G06F1/1677 ,  H04N9/3141 ,  Y10S345/905

Abstract: A projection system for a computer has an electronic slide (94) that is coupled to an electronic image signal (84) from a processor (82) in the computer (50). Projection optics (102) focus an optical image from the electronic slide (94) onto a screen (58).

Abstract translation: 用于计算机的投影系统具有从计算机（50）中的处理器（82）耦合到电子图像信号（84）的电子幻灯片（94）。 投影光学器件（102）将来自电子幻灯片（94）的光学图像聚焦到屏幕（58）上。

公开(公告)号：US5889602A

公开(公告)日：1999-03-30

申请号：US763192

申请日：1996-12-10

Applicant: Earnest J. Johnson ,  Christopher K. Y. Chun ,  Barbara McNeill Foley ,  Cary D. Perttunen ,  Daniel B. Schwartz ,  George Edward Charles

Inventor： Earnest J. Johnson ,  Christopher K. Y. Chun ,  Barbara McNeill Foley ,  Cary D. Perttunen ,  Daniel B. Schwartz ,  George Edward Charles

IPC: G06F1/16 ,  H04B10/00

CPC classification number: G06F1/1616 ,  G06F1/1681 ,  G06F1/1683 ,  H04B10/801

Abstract: An optical hinge (20) provides one or more free space optical communication links through the hinge (17) of an instrument (10). The optical links include a transmitter (24) in one section (14) of the instrument (10) and a receiver (34) in the other section (16) of the instrument (10). An optical coupler (27) connects the transmitter (24) to the receiver (34) through a hinge (17).

Abstract translation: 光学铰链（20）提供通过仪器（10）的铰链（17）的一个或多个自由空间光通信链路。 光学链路包括仪器（10）的一个部分（14）中的发射器（24）和仪器（10）的另一部分（16）中的接收器（34）。 光耦合器（27）通过铰链（17）将发射器（24）连接到接收器（34）。