公开(公告)号：US20050014520A1

公开(公告)日：2005-01-20

申请号：US10497402

申请日：2002-12-12

申请人： Yasuhisa Kimura ,  Koji Noda

发明人： Yasuhisa Kimura ,  Koji Noda

IPC分类号： H04B7/00 ,  H04B7/005 ,  H04B7/08 ,  H04B7/26 ,  H04B15/00 ,  H04B7/01

CPC分类号： H04W52/283 ,  H04B7/00 ,  H04B7/0822 ,  H04W52/287

摘要： The invention provides a cell phone which shows good receiving sensitivity even in a state where synchronization with a base station is not provided, such as power-on and detection of a dead space. The invention alternately switches between a plurality of antennas a predetermined number of times per fixed time predetermined in accordance with the number of perch channels in a state where synchronization with a base station is not provided, and sets an antenna whose mean value of the receiving level of each of these antennas is the highest as an antenna to be used subsequently, that is, an antenna to open a control channel.

摘要翻译： 本发明提供即使在没有提供与基站同步的状态下也能显示良好的接收灵敏度的蜂窝电话，例如上电和死空间的检测。 本发明在不与基站同步的状态下根据导频信道的数量在固定时间内在多个天线之间交替地切换预定次数，并且设置接收电平的平均值的天线 这些天线中的每一个是随后使用的天线最高的，即用于打开控制信道的天线。

公开(公告)号：US06823403B2

公开(公告)日：2004-11-23

申请号：US10184407

申请日：2002-06-27

申请人： Dale E. Gulick ,  Siegfried Kay Hesse

发明人： Dale E. Gulick ,  Siegfried Kay Hesse

IPC分类号： G06F1328

CPC分类号： G06F12/0879 ,  G06F13/28 ,  H04B7/0822

摘要： A DMA (Direct Memory Access) mechanism is provided that may be of improved performance in particular in connection with high-speed packet buses. A transmit DMA engine for outputting read requests for a memory interface and receiving requested data from the memory interface, comprises a data transfer initiating unit for outputting first address data identifying a first memory range. Further, a boundary alignment unit is provided for generating second address data using the first address data, where the second address data identifies a second memory range that differs from the first memory range in at least one boundary. Further a corresponding boundary alignment may be done in a receive DMA engine. The DMA mechanism may be performed in a USB-2 host controller that has HyperTransport capabilities.

摘要翻译： 提供了DMA（直接存储器访问）机制，其可以具有改进的性能，特别是与高速分组总线相关。 一种用于输出对存储器接口的读取请求并从存储器接口接收所请求的数据的发送DMA引擎，包括用于输出识别第一存储器范围的第一地址数据的数据传输启动单元。 此外，提供边界对齐单元，用于使用第一地址数据生成第二地址数据，其中第二地址数据标识与至少一个边界中的第一存储器范围不同的第二存储器范围。 此外，可以在接收DMA引擎中进行相应的边界对准。 DMA机制可以在具有HyperTransport功能的USB-2主机控制器中执行。

公开(公告)号：US20040022004A1

公开(公告)日：2004-02-05

申请号：US10617687

申请日：2003-07-14

发明人： Toshihito Habuka ,  Masaki Noda ,  Hiroshi Nogami ,  Toyokazu Hori ,  Tatsuji Matsuura ,  Kazuaki Hori ,  Naoto Inokawa

IPC分类号： H02H001/00

CPC分类号： H04L25/061 ,  H03G3/001 ,  H04B7/0805 ,  H04B7/0814 ,  H04B7/0822 ,  H04L27/2647 ,  H04L27/3809

摘要： Disclosed here is a wireless LAN system employed for quick and accurate auto gain controlling with no work load to be applied to its baseband processing block. When the wireless LAN system gets ready to receive a signal, the gain control circuit switches between the receiving antennas alternately. The gain control circuit, when receiving a signal over a predetermined receiving sensitivity, sets gain setting value time divisional data according to the level of the received signal measured by the first measurement circuit to roughly control the gain to be set in the LNA and the gain to be set in the two programmable gain amplifiers provided in the front steps of the LPF/PGA circuits. The gain control circuit then cancels the DC offset while the second measurement circuit measures the signal level. The gain control circuit then sets the gain setting value time divisional data according to the measured signal level, then sets a minute gain in the programmable gain amplifiers provided in the front steps of the LPF/PGA circuits respectively, thereby completing the auto gain controlling.

摘要翻译： 这里公开了一种无线LAN系统，其用于快速且准确的自动增益控制，而无需工作负载来应用于其基带处理模块。 当无线LAN系统准备好接收信号时，增益控制电路交替地在接收天线之间切换。 增益控制电路在接收到预定接收灵敏度的信号时，根据由第一测量电路测量的接收信号的电平来设置增益设定值时分数据，以粗略地控制在LNA中设置的增益和增益 设置在LPF / PGA电路的前面步骤中提供的两个可编程增益放大器中。 然后，增益控制电路取消DC偏移，而第二测量电路测量信号电平。 然后，增益控制电路根据测量的信号电平设定增益设定值时分数据，然后分别在LPF / PGA电路的前级中设置的可编程增益放大器中设定微小增益，从而完成自动增益控制。

公开(公告)号：US20020045427A1

公开(公告)日：2002-04-18

申请号：US09981101

申请日：2001-10-16

发明人： Saku Lahti ,  Ilkka Kontola

IPC分类号： H04B001/034

CPC分类号： H04B7/0822 ,  G01S19/22 ,  G01S19/36 ,  H04B7/0848 ,  H04B7/0857 ,  H04B7/10

摘要： A method (300) for receiving radio signal comprises the steps of: receiving (301, 303) first and a second received signal components using first and second antennas having different properties; processing (305) a received signal component to produce a sampled signal component; producing (307) at least one combined signal, which is a linear combination of at least two sampled signal components; and selecting (306) at least one set of complex values for coefficients of the linear combination so that a quality of a combined signal is at least equal to the quality of that sampled signal components having the best quality. Furthermore, the antennas are alternately connected (302, 304) via a switching element to radio frequency means so that the received signal components are interleaving and so that first and second parts of a certain piece of transmitted information are received with the first and second antennas, respectively. A corresponding receiver device is also presented.

摘要翻译： 一种用于接收无线电信号的方法（300）包括以下步骤：使用具有不同特性的第一和第二天线接收（301,303）第一和第二接收信号分量; 处理（305）接收信号分量以产生采样信号分量; 产生（307）至少一个组合信号，其是至少两个采样信号分量的线性组合; 以及为所述线性组合的系数选择（306）至少一组复值，使得组合信号的质量至少等于具有最佳质量的采样信号分量的质量。 此外，天线经由开关元件交替连接到射频装置，使得接收的信号分量是交织的，并且使得第一和第二天线接收到某一段发送信息的第一和第二部分 ， 分别。 还提出了相应的接收机设备。

公开(公告)号：US5990832A

公开(公告)日：1999-11-23

申请号：US124175

申请日：1998-07-28

申请人： Sylvie Mayrargue

发明人： Sylvie Mayrargue

IPC分类号： H01Q21/29 ,  H04B7/08 ,  H04B7/10 ,  G01S3/16 ,  G01S3/28

CPC分类号： H04B7/0822 ,  H01Q21/29 ,  H04B7/10

摘要： This antenna array for base station for radiocommunication with mobiles comprises N first sensors, N being an integer greater than 2, arranged in such a way that the array exhibits substantially no ambiguity; an (N+1).sup.th sensor placed or contrived in such a way as to receive signals which are decorrelated from the previous ones; and a module for processing the signals received, making it possible to locate, in an explicit or implicit manner, a transmitting mobile from the signals received by the N sensors alone, and to combine these signals and the signals received by the (N+1).sup.th sensor so as to improve reception by effecting spatial or spatio-temporal diversity.

摘要翻译： 用于与移动台无线电通信的基站的该天线阵列包括N个第一传感器，N是大于2的整数，以使阵列基本上不含歧义的方式布置; 第（N + 1）个传感器被放置或设计为接收与之前相关的信号; 以及用于处理接收的信号的模块，使得可以以显式或隐式的方式从由N个传感器单独接收的信号中定位发射移动台，并且将这些信号和由（N + 1） ）传感器，以便通过实现空间或时空分集来改善接收。

公开(公告)号：US4334314A

公开(公告)日：1982-06-08

申请号：US37068

申请日：1979-05-03

申请人： Georges P. Nard ,  Daniel J. E. Bourasseau ,  Jean M. Rabian

发明人： Georges P. Nard ,  Daniel J. E. Bourasseau ,  Jean M. Rabian

IPC分类号： G01S5/14 ,  G01S7/42 ,  G01S13/87 ,  H04B7/08 ,  H04B7/04 ,  G01S5/06

CPC分类号： G01S7/42 ,  G01S13/876 ,  G01S5/14 ,  H04B7/0822 ,  H04B7/0854

摘要： The invention relates to the radio-electrical transmission of accurate timing-mark signals. A space-diversity electrical connection is formed between a station having one single antenna and a station having two antennae and one of the stations is equipped with a receiver device which combines into one composite timing-mark signal the different repetitive timing-marks decoded and rectified from high-frequency signals which have traversed several spatial propagation paths. A common automatic gain control circuit weights the decoded and rectified timing marks according to a weighting which diminishes with the level of high frequency reception. Preferably the rectification of the timing marks is carried out non-linearly.

摘要翻译： 本发明涉及精确定时标记信号的无线电传输。 在具有单个天线的站和具有两个天线的站之间形成空间分集电连接，并且其中一个站配备有接收机设备，其将被解码和纠正的不同重复定时标记组合成一个复合定时标记信号 来自经过几个空间传播路径的高频信号。 常见的自动增益控制电路根据随高频接收电平而减小的加权来对经解码和整流的定时标记进行加权。 优选地，非线性地执行定时标记的整流。

公开(公告)号：US3537011A

公开(公告)日：1970-10-27

申请号：US3537011D

申请日：1967-11-22

IPC分类号： H01Q3/24 ,  H04B7/08 ,  H04B1/18

CPC分类号： H04B7/0822 ,  H01Q3/24 ,  H04B7/0817

公开(公告)号：US20180138964A1

公开(公告)日：2018-05-17

申请号：US15869883

申请日：2018-01-12

申请人： Cambium Networks Ltd

发明人： Peter Strong ,  Paul Clark ,  Martin Crowle

IPC分类号： H04B7/08 ,  H04B7/0408 ,  H04B7/06 ,  H04B7/10

CPC分类号： H04B7/086 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0822 ,  H04B7/0871 ,  H04B7/10

摘要： An access point (1) for use in a point to multipoint wireless network comprises a sector antenna (8) and an antenna array of antenna elements (7), the antenna elements not including the sector antenna, and the antenna elements being arranged to receive signals from the same sector as the sector antenna. A first beamformer (10) is configurable to form a first beam (11) from signals received at the antenna array and a selector switch (5) is switchable to at least a first state in which signals received at the sector antenna (8) are connected to a first receiver (2), and a second state in which signals received from the first beamformer (10) are connected to the first receiver (2). A scheduler is configured to set the selector switch (5) to the first state for at least a first receive timeslot and to the second state for at least a second receive timeslot.

公开(公告)号：US09400325B2

公开(公告)日：2016-07-26

申请号：US14953929

申请日：2015-11-30

申请人： Valeo Radar Systems, Inc.

发明人： Jeffrey Millar

IPC分类号： G01S13/42 ,  G01S7/42 ,  H04B7/08 ,  G01S13/58 ,  G01S7/35

CPC分类号： G01S7/42 ,  G01S7/352 ,  G01S13/44 ,  G01S13/583 ,  G01S13/685 ,  G01S13/931 ,  G01S2007/356 ,  H04B7/0822 ,  H04B7/0891

摘要： Described herein is an automotive radar system and related processing techniques utilizing a three channel switched antenna to improve the angular resolution of an azimuth tracking radar.

摘要翻译： 这里描述了一种汽车雷达系统和利用三通道切换天线来提高方位跟踪雷达的角度分辨率的相关处理技术。

公开(公告)号：US20150319395A1

公开(公告)日：2015-11-05

申请号：US14650163

申请日：2014-01-14

申请人： Sony Corporation

发明人： Kouki Tsukahara ,  Hideki Nozawa

IPC分类号： H04N5/50 ,  H04B1/18 ,  H04N5/44

CPC分类号： H04N5/50 ,  H04B1/006 ,  H04B1/18 ,  H04B7/0814 ,  H04B7/0822 ,  H04B7/0837 ,  H04B7/0871 ,  H04N5/4401 ,  H04N21/41407 ,  H04N21/4383 ,  H04N21/4622

摘要： There is provided an apparatus comprising a plurality of antenna terminals, a first switch configured to select an antenna terminal of the plurality of antenna terminals, a second switch configured to receive an output of the antenna terminal from the first switch and divide the output of the antenna terminal into a first output and a second output, a surface acoustic wave filter configured to receive the first output from the second switch, and a tuner/decoder configured to receive an output of the surface acoustic wave filter and the second output.

摘要翻译： 提供了一种包括多个天线端子的装置，被配置为选择多个天线端子中的天线端子的第一开关，被配置为从第一开关接收天线端子的输出的第二开关， 天线端子转换为第一输出和第二输出;声表面波滤波器，被配置为接收来自第二开关的第一输出;以及调谐器/解码器，被配置为接收声表面波滤波器和第二输出的输出。