Method of transmitting low-power frequency hopped spread spectrum data
    41.
    发明授权
    Method of transmitting low-power frequency hopped spread spectrum data 失效
    低功率跳频扩频数据传输方法

    公开(公告)号:US5546422A

    公开(公告)日:1996-08-13

    申请号:US362114

    申请日:1994-12-22

    摘要: An acknowledgement paging system is described which fits within the existing infrastructure of a paging network and which provides low cost manufacture and low power operation while still enabling the acknowledgement paging over long distances. The acknowledgement paging system consists of a standard paging transmitter and a plurality of remote paging units which respond to a page using frequency-hopped spread-spectrum differential bi-phase shift keying communications. The plurality of pagers are assigned to groups with each group being assigned a separate starting location in a common, repeating pseudo-random noise code which determines the frequency hops. The grouping of pagers minimizes the collisions of acknowledgment transmissions between groups and the enables a large number of paging units to operate within a single geographic area. The pagers include a special double loop PLL synthesizer to produce an accurate narrow band frequency and to change or hop frequencies in a rapid fashion. The base receiving unit employs special algorithms for retrieving very low power acknowledgement paging messages in a noisy environment by using data redundancy, data interleaving, soft decoding and error correction codes to strip the bi-phase-modulated, frequency-hopped spread-spectrum digital data transmitted from the remote pocket pagers. A history of the frequency and phase drift is used during reception of the acknowledgement messages to predict the phase and frequency drift of the encoded digital information to further reduce decoding error. Signal to noise ratios are determined for each frequency hop and relatively noisy hops are discarded or minimized in a soft decoding process based redundancy of data bits.

    摘要翻译: 描述了一种确认寻呼系统,其适合于寻呼网络的现有基础设施,并且在远距离执行确认寻呼的同时提供低成本的制造和低功率操作。 确认寻呼系统由标准寻呼发射机和使用跳频扩频差分双相移键控通信响应寻呼的多个远程寻呼单元组成。 多个寻呼机被分配给组,其中每个组被分配在确定跳频的公共重复伪随机噪声码中的单独的起始位置。 寻呼机的分组使组之间的确认传输的冲突最小化,并且使得大量寻呼单元能够在单个地理区域内操作。 寻呼机包括一个特殊的双回路PLL合成器,以产生精确的窄带频率,并以快速方式改变或跳频。 基站接收单元采用特殊算法,通过使用数据冗余,数据交织,软解码和纠错码来消除双相调制的跳频扩频数字数据,在噪声环境中检索极低功率的确认寻呼消息 从远程口袋传呼机传输。 在接收确认消息期间使用频率和相位漂移的历史来预测编码的数字信息的相位和频率漂移以进一步减少解码错误。 针对每个跳频确定信噪比,并且在基于软解码过程的数据比特冗余中丢弃或最小化相对噪声的跳。

    System and mothods of sorting out harmless versus suspicious visitors inside a protected perimeter

    公开(公告)号:US20210201640A1

    公开(公告)日:2021-07-01

    申请号:US16974319

    申请日:2020-12-28

    申请人: Haim Harel

    发明人: Haim Harel

    摘要: An artificial intelligence (AI) assisted cameras system and methods, designated to sort out visitors to a protected perimeter into either harmless or suspicious, vetting irregular behaviors via observation and analysis of people's response to automated loudspeaker inquires and instructions. While acceptable behavior is noted and dismissed, confirmed suspicious one triggers alerting and summoning of professional human guard. The goal of the system is to engage a human intervention as little as possible, while doing it with minimal false negative.

    Using multiple and a single feedback for UE uplink beamforming in soft handoff
    43.
    发明授权
    Using multiple and a single feedback for UE uplink beamforming in soft handoff 有权
    在软切换中使用多个和单个反馈用于UE上行链路波束成形

    公开(公告)号:US08699968B2

    公开(公告)日:2014-04-15

    申请号:US13232646

    申请日:2011-09-14

    申请人: Haim Harel

    发明人: Haim Harel

    IPC分类号: H04B7/02 H04W36/00

    摘要: Embodiments of the present invention describe methods for increasing the amount of information available to a mobile transmit diversity transmitter during soft handoff. According to embodiments of the invention, a transmit diversity transmitter may determine substantially when it is in uplink communication with one base station and downlink communication with another base station. The mobile device may transmitting a diversity signal by controlling a value of a transmit diversity parameter based on feedback signals from the downlink base station, and controlling a power level in accordance with a standard protocol, e.g. combination of transmit power control feedbacks provided by the active base stations.

    摘要翻译: 本发明的实施例描述了用于在软切换期间增加可用于移动发射分集发射机的信息量的方法。 根据本发明的实施例,发射分集发射机可以基本确定何时在与一个基站的上行链路通信中以及与另一个基站的下行链路通信。 移动设备可以通过基于来自下行链路基站的反馈信号来控制发射分集参数的值来发送分集信号,并且根据标准协议来控制功率电平,例如, 由活动基站提供的发射功率控制反馈的组合。

    SYSTEM, METHOD AND APPARATUS FOR MOBILE TRANSMIT DIVERSITY USING SYMMETRIC PHASE DIFFERENCE
    44.
    发明申请
    SYSTEM, METHOD AND APPARATUS FOR MOBILE TRANSMIT DIVERSITY USING SYMMETRIC PHASE DIFFERENCE 有权
    使用对称相位差的移动发射多样性的系统,方法和装置

    公开(公告)号:US20110281610A1

    公开(公告)日:2011-11-17

    申请号:US13104749

    申请日:2011-05-10

    IPC分类号: H04B1/02 H04W88/02

    CPC分类号: H04B7/0682 H04B7/0404

    摘要: A mobile communication device and a method of controlling same, in which the mobile communication device transmits a plurality of transmit diversity signals comprising a first transmit signal and a second transmit signal differing at least by values of a transmit diversity parameter, receives a plurality of feedback signals from at least one base station in response to the plurality of transmit diversity signals; and determines a system delay based on detecting that a number of expected feedback signal patterns among the received plurality of feedback signals exceeds a system delay threshold.

    摘要翻译: 一种移动通信设备及其控制方法,其中,所述移动通信设备发送包括至少不同于发射分集参数的值的第一发送信号和第二发送信号的多个发送分集信号,接收多个反馈 响应于所述多个发射分集信号来自至少一个基站的信号; 并且基于检测到所接收的多个反馈信号中的多个预期反馈信号模式超过系统延迟阈值来确定系统延迟。

    AMPLIFYING A TRANSMIT SIGNAL USING A FRACTIONAL POWER AMPLIFIER
    45.
    发明申请
    AMPLIFYING A TRANSMIT SIGNAL USING A FRACTIONAL POWER AMPLIFIER 审中-公开
    使用功率放大器放大发射信号

    公开(公告)号:US20110263213A1

    公开(公告)日:2011-10-27

    申请号:US13175379

    申请日:2011-07-01

    申请人: Haim Harel Yair Karmi

    发明人: Haim Harel Yair Karmi

    IPC分类号: H04W52/52 H04W88/02

    摘要: A transmit amplifier stage operable to amplify a transmit signal comprises power amplifiers and switches. The power amplifiers include at least one fractional power amplifier operable to provide fractional power to amplify the transmit signal, where the fractional power is a fraction of the full power. A switch has a plurality of positions, where a position directs the transmit signal to a selected power amplifier.

    摘要翻译: 用于放大发射信号的发射放大器级包括功率放大器和开关。 功率放大器包括至少一个小数功率放大器,其可操作以提供分数功率来放大发射信号,其中分数功率是全功率的一部分。 开关具有多个位置,其中位置将发送信号引导到所选择的功率放大器。

    Calibrating a transmit diversity communication device
    46.
    发明授权
    Calibrating a transmit diversity communication device 有权
    校准发射分集通信设备

    公开(公告)号:US07633905B1

    公开(公告)日:2009-12-15

    申请号:US11283250

    申请日:2005-11-18

    IPC分类号: H04Q7/00

    摘要: Calibrating a transmit diversity device includes establishing diversity parameter values of diversity parameters for a plurality of signals, where each signal is transmitted from a channel of the transmit diversity device. The following are performed for each diversity parameter value to yield associations: determining a modification parameter value that yields a diversity parameter value, where a modification parameter value describes modulation of a feature of at least one signal; and associating the modification parameter value with the diversity parameter value to yield an association. Calibration data is generated in accordance with the associations.

    摘要翻译: 校准发射分集设备包括建立多个信号的分集参数的分集参数值,其中每个信号从发射分集设备的信道发射。 对于每个分集参数值执行以下以产生关联:确定产生分集参数值的修改参数值,其中修改参数值描述至少一个信号的特征的调制; 并将修改参数值与分集参数值相关联以产生关联。 校准数据根据关联产生。

    AMPLIFYING A TRANSMIT SIGNAL USING A FRACTIONAL POWER AMPLIFIER
    47.
    发明申请
    AMPLIFYING A TRANSMIT SIGNAL USING A FRACTIONAL POWER AMPLIFIER 有权
    使用功率放大器放大发射信号

    公开(公告)号:US20090209214A1

    公开(公告)日:2009-08-20

    申请号:US12278994

    申请日:2006-11-02

    申请人: Haim Harel Yair Karmi

    发明人: Haim Harel Yair Karmi

    IPC分类号: H04B1/04

    摘要: A transmit amplifier stage operable to amplify a transmit signal comprises power amplifiers and switches. The power amplifiers include at least one fractional power amplifier operable to provide fractional power to amplify the transmit signal, where the fractional power is a fraction of the full power. A switch has a plurality of positions, where a position directs the transmit signal to a selected power amplifier.

    摘要翻译: 用于放大发射信号的发射放大器级包括功率放大器和开关。 功率放大器包括至少一个小数功率放大器,其可操作以提供分数功率来放大发射信号,其中分数功率是全功率的一部分。 开关具有多个位置,其中位置将发送信号引导到所选择的功率放大器。

    Communicating signals according to a quality indicator using multiple antenna elements
    48.
    发明授权
    Communicating signals according to a quality indicator using multiple antenna elements 有权
    使用多个天线元素根据质量指示器通信信号

    公开(公告)号:US07272359B2

    公开(公告)日:2007-09-18

    申请号:US10766244

    申请日:2004-01-26

    IPC分类号: H04B17/00

    摘要: One or more quality indicators are established at a first communication device having antenna elements. The quality indicators indicate a quality of one or more communication links between the first communication device and one or more second communication devices. A modification is determined according to the quality indicators, where the modification describes at least one adjustment of one or more modulation features. At least some of a set of signals are modulated in accordance with the modification, where a signal is associated with an antenna element. The set of signals is sent from the antenna elements to yield a transmitted signal.

    摘要翻译: 在具有天线元件的第一通信设备上建立一个或多个质量指示符。 质量指示符指示第一通信设备和一个或多个第二通信设备之间的一个或多个通信链路的质量。 根据质量指标确定修改,其中修改描述了一个或多个调制特征的至少一个调整。 根据修改调制一组信号中的至少一些,其中信号与天线元件相关联。 从天线元件发送信号集合以产生发射信号。

    Communicating signals according to a quality indicator using multiple antenna elements
    49.
    发明申请
    Communicating signals according to a quality indicator using multiple antenna elements 有权
    使用多个天线元素根据质量指示器通信信号

    公开(公告)号:US20050164645A1

    公开(公告)日:2005-07-28

    申请号:US10766244

    申请日:2004-01-26

    摘要: One or more quality indicators are established at a first communication device having antenna elements. The quality indicators indicate a quality of one or more communication links between the first communication device and one or more second communication devices. A modification is determined according to the quality indicators, where the modification describes at least one adjustment of one or more modulation features. At least some of a set of signals are modulated in accordance with the modification, where a signal is associated with an antenna element. The set of signals is sent from the antenna elements to yield a transmitted signal.

    摘要翻译: 在具有天线元件的第一通信设备上建立一个或多个质量指示符。 质量指示符指示第一通信设备和一个或多个第二通信设备之间的一个或多个通信链路的质量。 根据质量指标确定修改,其中修改描述了一个或多个调制特征的至少一个调整。 根据修改调制一组信号中的至少一些,其中信号与天线元件相关联。 从天线元件发送信号集合以产生发射信号。

    Remote unit for use with remote pager
    50.
    发明授权
    Remote unit for use with remote pager 失效
    遥控单元,用于远程寻呼机

    公开(公告)号:US5519718A

    公开(公告)日:1996-05-21

    申请号:US363288

    申请日:1994-12-22

    摘要: An acknowledgement paging system is described which fits within the existing infrastructure of a paging network and which provides low cost manufacture and low power operation while still enabling the acknowledgement paging over long distances. The acknowledgement paging system consists of a standard paging transmitter and a plurality of remote paging units which respond to a page using frequency-hopped spread-spectrum differential bi-phase shift keying communications. The plurality of pagers are assigned to groups with each group being assigned a separate starting location in a common, repeating pseudo-random noise code which determines the frequency hops. The grouping of pagers minimizes the collisions of acknowledgment transmissions between groups and the enables a large number of paging units to operate within a single geographic area. The pagers include a special double loop PLL synthesizer to produce an accurate narrow band frequency and to change or hop frequencies in a rapid fashion. The base receiving unit employs special algorithms for retrieving very low power acknowledgement paging messages in a noisy environment by using data redundancy, data interleaving, soft decoding and error correction codes to strip the bi-phase-modulated, frequency-hopped spread-spectrum digital data transmitted from the remote pocket pagers. A history of the frequency and phase drift is used during reception of the acknowledgement messages to predict the phase and frequency drift of the encoded digital information to further reduce decoding error. Signal to noise ratios are determined for each frequency hop and relatively noisy hops are discarded or minimized in a soft decoding process based redundancy of data bits.

    摘要翻译: 描述了一种确认寻呼系统,其适合于寻呼网络的现有基础设施,并且在远距离执行确认寻呼的同时提供低成本的制造和低功率操作。 确认寻呼系统由标准寻呼发射机和使用跳频扩频差分双相移键控通信响应寻呼的多个远程寻呼单元组成。 多个寻呼机被分配给组,其中每个组被分配在确定跳频的公共重复伪随机噪声码中的单独的起始位置。 寻呼机的分组使组之间的确认传输的冲突最小化,并且使得大量寻呼单元能够在单个地理区域内操作。 寻呼机包括一个特殊的双回路PLL合成器,以产生精确的窄带频率,并以快速方式改变或跳频。 基站接收单元采用特殊算法,通过使用数据冗余,数据交织,软解码和纠错码来消除双相调制的跳频扩频数字数据,从而在嘈杂的环境中检索极低功率的确认寻呼消息 从远程口袋传呼机传输。 在接收确认消息期间使用频率和相位漂移的历史来预测编码的数字信息的相位和频率漂移以进一步减少解码错误。 针对每个跳频确定信噪比,并且在基于软解码处理的数据比特冗余中丢弃或最小化相对噪声的跳。