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    • 31. 发明授权
    • Unidirectional ear microphone and method
    • 单向耳麦克风和方法
    • US5363444A
    • 1994-11-08
    • US183625
    • 1994-01-18
    • Elwood G. Norris
    • Elwood G. Norris
    • H04R1/10H04M1/00H04M1/05H04M1/19H04R1/00H04R1/38H04R1/46H04R25/02H04R25/00
    • H04R1/1075H04M1/05H04M1/19H04R1/08H04R1/38H04R1/1016H04R1/1083H04R2201/107H04R2499/11
    • An ear piece device configured for being supported in the ear and providing a microphone which primarily detects only sounds originated by the user is contained within a housing which is configured at one end to fit snugly at the ear canal of the user, but not to extend within the ear canal. A microphone element is coupled within the housing in a position such that the microphone element is separated from contact with the skull of the user by the housing. This microphone element is contained within a casement which is mechanically and acoustically isolated from vibrations occurring within the housing. Mounting rings formed of acoustical absorbing materials are interposed around the casement and between the housing and casement in a displaced configuration on opposing ends of the casement to result in cancellation of residual vibrations passing to the microphone element from the housing. A speaker element may be included within the ear device and can be decoupled acoustically so as to avoid feedback. This system can operate with full duplex and enable hands free communication and direct voice command by user through computer modems, telephone networks and other communication systems.
    • 被配置为被支撑在耳朵中并且提供主要仅检测由用户产生的声音的麦克风的耳塞装置被容纳在壳体内,该壳体被配置在一端以紧密地贴合在使用者的耳道上,但不延伸 在耳道内。 麦克风元件在壳体内耦合在一个位置,使得麦克风元件与壳体与使用者的颅骨的接触分离。 这个麦克风元件被包含在机壳和声学上与壳体内发生的振动隔离的窗扇内。 由声吸收材料形成的安装环以平板形状设置在壳体之间并且在壳体和窗扇之间以位移构型放置在窗扇的相对端部上,从而消除从壳体传递到麦克风元件的残余振动。 扬声器元件可以包括在耳朵装置内并且可以在声学上去耦,以避免反馈。 该系统可以全双工工作,并通过计算机调制解调器,电话网络和其他通信系统实现用户免提通信和直接语音命令。
    • 36. 发明授权
    • Parametric loudspeaker with improved phase characteristics
    • 参数扬声器具有改进的相位特性
    • US08199931B1
    • 2012-06-12
    • US12106909
    • 2008-04-21
    • Elwood G. NorrisJoseph O. NorrisJames J. Croft, III
    • Elwood G. NorrisJoseph O. NorrisJames J. Croft, III
    • H04R1/40
    • H04R17/00H04R2217/03
    • A method is disclosed for increasing a parametric output of a parametric loudspeaker system. The method can include the operation of providing multiple ultrasonic frequency emission zones that output signals in a frequency band. The phase relationships of the ultrasonic frequency emission zones can be correlated and controlled to increase phase coherence between each ultrasonic frequency emission zone to maximize parametric output. Correlating and controlling the phase relationships can include offsetting a frequency of a carrier signal applied to each emission zone from a resonant frequency of each emission zone in view of a rate of change of phase of each emission zone in a vicinity of each resonant frequency. Ultrasonic energy from the ultrasonic frequency emission zones can be generated, using the correlated phase relationship to increase the parametric output.
    • 公开了一种用于增加参数化扬声器系统的参数输出的方法。 该方法可以包括提供在频带中输出信号的多个超声频率发射区域的操作。 超声波发射区的相位关系可以进行相关和控制,以增加每个超声频率发射区之间的相位相干性,以最大化参数输出。 考虑到每个发射区在每个共振频率附近的相位变化率,相关和控制相位关系可以包括从每个发射区的谐振频率偏移施加到每个发射区的载波信号的频率。 可以产生超声波发射区的超声波能量,利用相关的相位关系增加参数输出。
    • 38. 发明授权
    • Reconfigurable plasma antenna
    • 可重构等离子天线
    • US06369763B1
    • 2002-04-09
    • US09543445
    • 2000-04-05
    • Elwood G. NorrisTed AndersonIgor Alexeff
    • Elwood G. NorrisTed AndersonIgor Alexeff
    • H01Q124
    • H01Q1/366H01Q13/10H05H1/46
    • The present invention is drawn toward a plasma antenna that is preferably reconfigurable, methods of generating plasma antennas, and a method of reconfiguring the radiation pattern of a plasma antenna. The plasma antenna is comprised of a) an enclosed chamber; b) a composition contained within the enclosed chamber capable of forming a plasma; c) at least three energizing points capable of forming electromagnetic contact with the composition; and d) an energy source coupled to the at three energizing points for developing at least one conductive path of plasma within the enclosed chamber. Preferably, a modifying mechanism may be utilized to reconfigure the conductive path.
    • 本发明涉及优选可重构的等离子体天线,等离子体天线的产生方法以及重新配置等离子体天线辐射图的方法。 等离子体天线包括:a)封闭室; b)包含在封闭室内的能够形成等离子体的组合物; c)能够与组合物形成电磁接触的至少三个能量点; 以及d)耦合到三个通电点处的能量源,用于在所述封闭室内形成至少一个等离子体的导电路径。 优选地,可以利用修改机制来重新配置导电路径。
    • 39. 发明授权
    • Method and device for developing a virtual speaker distant from the sound source
    • 用于开发远离声源的虚拟扬声器的方法和装置
    • US06229899B1
    • 2001-05-08
    • US09159443
    • 1998-09-24
    • Elwood G. NorrisJames J. Croft, III
    • Elwood G. NorrisJames J. Croft, III
    • H04B300
    • G10K15/02H04B11/00H04R3/02H04R5/02H04R23/00H04R2217/03H04S1/002H04S3/002
    • A method for providing multiple speaker locations around a listener in a room with a sound source at a single location. The method comprising the steps of a) generating primary audio output by emitting audio compression waves from audio speakers at the sound source which are oriented along a primary audio path directly toward the listener; b) generating secondary audio output from at least one virtual speaker remote from and electronically unconnected with the sound source by emitting ultrasonic sound from at least one parametric speaker positioned at the sound source and oriented toward at least one reflective surface within the room which is remote from the sound source and not along the primary audio path, thereby indirectly generating omni-directional sound from the reflective surface which is perceived as originating at the virtual speaker; and c) synchronizing the primary audio output of the audio speakers with the secondary audio output from the at least one parametric speaker such that the listener hears a unified sound experience from multiple directions.
    • 一种用于在单个位置处具有声源的房间中的收听者周围提供多个扬声器位置的方法。 该方法包括以下步骤:a)通过从音源上的音频扬声器发出音频压缩波来产生主音频输出,该音频扬声器沿主音频路径直接朝向收听者定向; b)通过从位于声源处的至少一个参数扬声器发射超声波并且朝向房间内的至少一个反射表面(远程)来产生远离和与电源电子地不连接的至少一个虚拟扬声器的副音频输出 从声源而不是沿着主音频路径,从而间接地产生来自反射表面的全方位声音,该反射表面被感知为源自于虚拟扬声器; 以及c)将音频扬声器的主音频输出与来自至少一个参数扬声器的次要音频输出同步,使得听众从多个方向听到统一的声音体验。
    • 40. 发明授权
    • Electrostatic speaker with foam stator
    • 带泡沫定子的静电扬声器
    • US06188772B1
    • 2001-02-13
    • US09105380
    • 1998-06-26
    • Elwood G. NorrisJames J. Croft, III
    • Elwood G. NorrisJames J. Croft, III
    • H04R2500
    • H04R19/00H04R23/02
    • An electrostatic speaker device, comprising a first foam stator having an interior surface, and a second foam stator having an interior surface positioned adjacent to the interior surface of the first stator. The interior surfaces of the first and second foam stators include electrically conductive cellular structure sufficiently small in cell size to develop a substantially continuous electrostatic charge dispersion across the respective first and second interior surfaces. At least one diaphragm is disposed between the first and second foam stators and includes an electrically conductive layer responsive to electrostatic forces developed by the respective first and second stators. An electrical charge is applied on the at least one diaphragm, along with electrical contacts coupled to the first and second foam stators for attachment to a signal source operable to supply voltage at the respective first and second stators to provide a push-pull drive configuration for the at least one diaphragm as an active speaker element.
    • 一种静电扬声器装置,包括具有内表面的第一泡沫定子和具有邻近第一定子的内表面定位的内表面的第二泡沫定子。 第一和第二泡沫定子的内表面包括电池尺寸足够小的导电细胞结构,以在相应的第一和第二内表面上形成基本连续的静电电荷分散体。 至少一个隔膜设置在第一和第二泡沫定子之间,并且包括响应于由相应的第一和第二定子产生的静电力的导电层。 一个电荷被施加在至少一个隔膜上,连同耦合到第一和第二泡沫定子的电触点用于附接到可操作以在相应的第一和第二定子处提供电压的信号源,以提供推挽驱动配置, 所述至少一个隔膜作为有源扬声器元件。