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    • 5. 发明授权
    • Surface acoustic wave modulator
    • 表面声波调制器
    • US07132778B1
    • 2006-11-07
    • US10646139
    • 2003-08-20
    • Paul A. NysenHalvor Skeie
    • Paul A. NysenHalvor Skeie
    • H01I41/08
    • G06K7/0008G01S13/343G01S13/755G06K19/0672G06K19/0675H03H9/02795H03H9/44
    • An acoustic wave identification transponder device, having a substrate, an electroacoustic transfer generating an acoustic wave in said substrate and a set of encoding elements disposed in a path of the acoustic wave for modifying the acoustic wave, having elements which reflect portions of the acoustic wave having a component orthogonal to the incident wave. The reflectors may be, for example, trackchangers or reflective arrays compressors (RAC). The wave may be phase-amplitude modulated for increased efficiency expressed in bits per tap. Such phase amplitude modulation is preferably imposed by partial beam width phase delay elements disposed within an acoustic beam path.
    • 声波识别应答器装置,具有衬底,在所述衬底中产生声波的电声转移和设置在声波路径中的用于修改声波的一组编码元件,具有反射声波部分的元件 具有与入射波正交的分量。 反射器可以是例如轨道变换器或反射阵列压缩机(RAC)。 波可以进行相位幅度调制,以提高效率,以每比特位数表示。 这种相位幅度调制优选地由设置在声束路径内的部分波束宽度相位延迟元件施加。
    • 6. 发明授权
    • Environmental location system
    • 环境定位系统
    • US06611758B1
    • 2003-08-26
    • US10201025
    • 2002-07-22
    • Paul A. Nysen
    • Paul A. Nysen
    • G06F1700
    • H04W64/00G01S7/40G01S7/52006G01S13/751G01S13/876G01S15/874G01S2007/4091
    • A system and method for determining a location. The system employs encoded information devices dispersed through the environment, each having, a non-unique code associated therewith. The codes from the encoded information devices are acquired as a reading device passes nearby, and stored. The codes from a proximate set of information devices are correlated with a map or mapping relation to determine one or more consistent positions within the environment. The information devices are preferably passive acoustic wave transponders and the mapping relation may be a pseudorandom sequence or a defined map.
    • 一种用于确定位置的系统和方法。 该系统使用通过环境分散的编码信息设备,每个具有与其相关联的非唯一代码。 来自编码信息设备的代码随着读取设备经过附近而被获取并被存储。 来自邻近的一组信息设备的代码与地图或映射关系相关联,以确定环境内的一个或多个一致的位置。 信息装置优选地是无源声波转发器,并且映射关系可以是伪随机序列或定义的映射。
    • 7. 发明授权
    • Dual mode transmitter-receiver and decoder for RF transponder tags
    • 用于射频应答器标签的双模收发器和解码器
    • US06433671B1
    • 2002-08-13
    • US09641649
    • 2000-08-18
    • Paul A. Nysen
    • Paul A. Nysen
    • H04Q522
    • G06K19/0675G01S13/755G06K7/0008H03H9/642
    • An enhanced backscatter RF-ID tag reader system and multiprotocol RF tag reader system is provided. In a multiprotocol mode, the system emits a non-stationary interrogation signal, and decodes a phase modulated backscatter signal by detecting a stronger phase component from quadrature phase representations or determining phase transition edges in a phase of a received signal. The RF tag reader system predicts or follows the phase of the backscatter signal, thereby avoiding interference from nulls in the received signal waveform due to the non-stationary interrogation signal, relative movement or environmental effects. An acoustic RF-ID tag detection system detects the reradiated signal corresponding to respective transformation of a signal in the tag. Detection of either type of RF-DD tags therefore is possible, and the absence of any tag or absence of any valid tag also determined.
    • 提供增强的反向散射RF-ID标签读取器系统和多协议RF标签读取器系统。 在多协议模式中,系统发出非固定询问信号,并且通过从正交相位表示中检测更强的相位分量或确定接收信号的相位中的相位边沿来解码相位调制反向散射信号。 RF标签读取器系统预测或跟随反向散射信号的相位,从而避免由于非固定询问信号,相对运动或环境影响而导致的接收信号波形中的零点的干扰。 声RF-ID标签检测系统检测对应于标签中的信号的相应变换的再辐射信号。 因此,可以检测任一类型的RF-DD标签,并且还确定没有任何标签或不存在任何有效标签。
    • 8. 发明授权
    • Frequency hopping spread spectrum passive acoustic wave identification
device
    • 跳频扩频无源声波识别装置
    • US6114971A
    • 2000-09-05
    • US914282
    • 1997-08-18
    • Paul A. Nysen
    • Paul A. Nysen
    • G01S13/75G06K7/10G06K19/067H04Q5/22
    • G01S13/755G06K19/0672G06K7/10009
    • A system and method for interrogating a passive acoustic transponder, producing a transponder signal having characteristic set of signal perturbations in response to an interrogation signal, comprising a signal generator, producing an interrogation signal having a plurality of differing frequencies; a receiver, for receiving the transponder signal; a mixer, for mixing the transponder signal with a signal corresponding to the interrogation signal, to produce a mixed output; an integrator, integrating the mixed output to define an integrated phase-response of the received transponder signal; and an analyzer, receiving a plurality of integrated phase-responses corresponding to the plurality of differing frequencies, for determining the characteristic set of signal perturbations of the passive acoustic transponder.
    • 一种用于询问被动声发射应答器的系统和方法,产生响应于询问信号的具有特征信号扰动集合的应答器信号,包括信号发生器,产生具有多个不同频率的询问信号; 接收器,用于接收应答器信号; 混合器,用于将应答器信号与对应于询问信号的信号混合,以产生混合输出; 集成器,将混合输出集成以定义接收到的应答器信号的积分相位响应; 以及分析器,接收与所述多个不同频率相对应的多个积分相位响应,以确定所述被动声发射应答器的信号扰动的特征集合。
    • 9. 发明授权
    • Universal communication system
    • US5252979A
    • 1993-10-12
    • US979968
    • 1992-11-23
    • Paul A. Nysen
    • Paul A. Nysen
    • G01S13/75H01Q9/04H04B1/38H04L12/28G01S13/08H04B7/14H04Q11/00
    • H04B1/38G01S13/751H01Q9/0407H04L12/2838H04L2012/2841H04W84/12H04W92/18
    • A communication system for use in an area having a human environment delimited from below by a floor and from above by an overhead environment substantially clear of human presence. The communication system includes a first information source operative to independently generate first information; a plurality of second information sources, each operative to independently generate second information; a plurality of controllers, each coupled to the first information source and arranged in the overhead environment, for producing a substantially downwardly directed communication beam at a prescribed carrier frequency, imparting the first information to the beam, receiving a reradiated version of the beam and detecting therefrom the second information, the controllers being arranged such that the beams substantially contiguously irradiate a region of said human environment; and a plurality of communicators, each coupled to one of the second information sources and arranged in the human environment. Each communicator includes means for receiving one of the beams, detecting the first information from the one beam and supplying the first information to an information user. Each communicator further includes means for reradiating the one beam in the direction of the controller that produced it and means for imparting the second information to the reradiated version of the beam. According to the invention each of said communicators further include a first means for generating a carrier signal at substantially the same frequency as the prescribed carrier frequency; a second means, coupled to the first means, for modulating the carrier signal with the second information signal to produce a modulated carrier signal; a third means for transmitting the modulated carrier signal substantially omni-directionally within the human environment; and a fourth means for controlling the operation of at least one of the first, second and third means. Each of said communicators is thereby operative to receive the modulated carrier signal and to reproduce the second informational signal.
    • 10. 发明授权
    • Passive interrogator label system having offset compensation and
temperature compensation for a surface acoustic wave transponder
    • 被动询问器标签系统具有对声表面波应答器的偏移补偿和温度补偿
    • US4734698A
    • 1988-03-29
    • US793165
    • 1985-10-31
    • Paul A. NysenMichael R. McCoy
    • Paul A. NysenMichael R. McCoy
    • G01S13/34G01S13/75G01S13/80
    • G01S13/755G01S13/343
    • A passive interrogator label system is disclosed which transmits a first signal to, and receives a second signal from a remote, encoding transponder. In the preferred embodiment, the transponder is a passive, surface acoustic wave device which receives the first signal, processes this signal and transmits, in reply, the second signal which includes a unique identification code. The passive interrogator label system incorporates a means and method for compensating for variations in signal delays within the transponder due to changes in ambient temperature as well as manufacturing tolerances of the transponder. The method includes the steps of measuring the difference in delay times between two successive delay taps in the transponder and using this difference as a standard for determining the differences in delay times between other successive taps in the same transponder.
    • 公开了一种无源询问器标签系统,其向远程编码应答器发送第一信号并从其接收第二信号。 在优选实施例中,应答器是接收第一信号的无源声表面波装置,处理该信号并且作为回应发送包括唯一识别码的第二信号。 无源询问器标签系统包括一种用于补偿应答器内由于环境温度变化以及应答器的制造公差引起的信号延迟变化的方法和方法。 该方法包括以下步骤:测量应答器中两个连续延迟抽头之间的延迟时间差,并使用该差作为用于确定同一应答器中其它连续抽头之间的延迟时间差的标准。