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1. 发明授权

US4099147A Bulk acoustic delay device 失效
标题翻译：大容量声延迟装置
公开(公告)号：US4099147A
公开(公告)日：1978-07-04
申请号：US792835
申请日：1977-05-02
申请人： Bruce R. McAvoy
发明人： Bruce R. McAvoy
IPC分类号： H03H9/36 , H03H9/26 , H01L41/04 , H03H9/30
CPC分类号： H03H9/36
摘要： A bulk acoustic delay device incorporating a transmitting transducer, a substrate, and two receiving transducers is described which may reduce the amplitude of undesired received reflected bulk acoustic waves by positioning one of the two receiving transducers to receive only the reflected wave having a longer acoustic path length due to wave diffraction to provide an output signal having a normal delayed signal and an attenuated triple or quadruple transit echo signal due to destructive interference. An alternate embodiment utilizes one composite receiving transducer.
摘要翻译：描述了包含发射换能器，基底和两个接收换能器的体声声延迟装置，其可以通过将两个接收换能器中的一个定位成仅接收具有较长声道的反射波来减小不期望的接收反射体声波的振幅由于波浪衍射而提供具有正常延迟信号的输出信号和由于破坏性干扰引起的衰减的三重或四通道回波信号。替代实施例使用一个复合接收换能器。

2. 发明授权

US3967223A Resonant ring transmission line having a high Q mode 失效
标题翻译：谐振环传输线具有高Q模式
公开(公告)号：US3967223A
公开(公告)日：1976-06-29
申请号：US550786
申请日：1975-02-18
申请人： Bruce R. McAvoy
发明人： Bruce R. McAvoy
IPC分类号： H01P7/00 , H01P3/08
CPC分类号： H01P7/00
摘要： A resonant ring transmission line capable of exhibiting a Q greater than 6000 at 4.3 gigahertz and a transmission line loss of less than 1 db per kilometer. This is accomplished by means of a resonant ring transmission line coupled to a microstrip transmission line and which resonates in the surface wave mode so that a very pure surface wave mode is created and caused to propagate along the resonant ring transmission line.
摘要翻译：谐振环传输线能够在4.3千兆赫兹下表现出大于6000的Q值，传输线路损耗小于每公里1分贝。这通过耦合到微带传输线并且以表面波模式谐振的谐振环传输线来实现，使得产生非常纯的表面波模式并使其沿着谐振环传输线传播。

3. 发明授权

US3942186A High frequency, field-effect transistor 失效
标题翻译：高频场效应晶体管
公开(公告)号：US3942186A
公开(公告)日：1976-03-02
申请号：US554785
申请日：1975-03-03
申请人： Bruce R. McAvoy , Michael C. Driver
发明人： Bruce R. McAvoy , Michael C. Driver
IPC分类号： H01L21/00 , H01L29/00 , H01L29/812 , H01L29/80 , H01L23/48 , H01L29/48
CPC分类号： H01L29/00 , H01L21/00 , H01L29/812
摘要： A high frequency, Schottky barrier gate, field-effect transistor is provided with a substantially constant impedance over a broadband of frequencies. The transistor is comprised of a thin dielectric layer providing an effective dielectric constant at gate and drain contacts greater than .sqroot.2. The dielectric layer is supported on the major surface of a conductor substrate, and is preferably 5 microns in thickness and has a dielectric constant greater than about 5. The transistor is also comprised of a thin semiconductor layer of less than about 2 microns in thickness at least at gate portions with an N-type concentration of between about 5 .times. 10.sup.14 and 5 .times. 10.sup.17 carriers/cm.sup.3. The gate contact of the transistor is an elongated Schottky barrier contact adjoining the semiconductor layer spaced between elongated source and drain contacts which make ohmic contact with the semiconductor layer. Means are also provided to maintain the source contact at substantially the same RF potential as the conductor substrate.
摘要翻译：高频肖特基势垒栅场效应晶体管在频率宽带上具有基本恒定的阻抗。该晶体管由薄的电介质层组成，在大于2ROOT 2的栅极和漏极触点处提供有效介电常数。电介质层被支撑在导体衬底的主表面上，并且优选为5微米厚，并且具有介电常数晶体管还包括厚度小于约2微米的薄半导体层，至少在栅极部分，N型浓度介于约5×1014至5×1017载体/厘米3之间。晶体管的栅极接触是与在与半导体层欧姆接触的细长的源极和漏极接触之间隔开的半导体层相邻的细长的肖特基势垒接触。还提供了用于将源极接触保持在与导体衬底基本相同的RF电位的装置。

4. 发明授权

US5192921A Miniaturized atomic frequency standard 失效
标题翻译：小型化原子频率标准
公开(公告)号：US5192921A
公开(公告)日：1993-03-09
申请号：US815677
申请日：1991-12-31
申请人： Peter J. Chantry , Robert W. Weinert , Salvador H. Tallisa , Bruce R. McAvoy , Thomas J. Smith, Jr.
发明人： Peter J. Chantry , Robert W. Weinert , Salvador H. Tallisa , Bruce R. McAvoy , Thomas J. Smith, Jr.
IPC分类号： H03L7/26
CPC分类号： G04F5/14 , H03L7/26
摘要： A cell-type atomic frequency standard utilizing a miniaturized gas cell and microwave exciter along with a diode laser light source. The intensity of the diode laser light source counterbalances the penalties associated with the small gas cell. The signal produced by an oscillator is applied to a vapor within the gas cell by a miniature helix coil, or LC gap conductor, or a microstrip exciter. With the dimensions of the gas cell not exceeding one-half the wavelength of the signal, and the associated circuitry formed on a semiconductor substrate, the resulting frequency standard is reduced in size by two orders of magnitude when compared to prior art devices of comparable accuracy.
摘要翻译：利用小型气体电池和微波激励器以及二极管激光光源的电池型原子频率标准。二极管激光光源的强度抵消了与小气体池相关的惩罚。由振荡器产生的信号通过微型螺旋线圈或LC间隙导体或微带激励器施加到气体单元内的蒸汽。由于气体电池的尺寸不超过信号波长的一半以及形成在半导体衬底上的相关电路，与现有技术的可比精度的器件相比，所得到的频率标准尺寸减小两个数量级。

5. 发明授权

US5164358A Superconducting filter with reduced electromagnetic leakage 失效
标题翻译：具有降低电磁泄漏的超导滤波器
公开(公告)号：US5164358A
公开(公告)日：1992-11-17
申请号：US600893
申请日：1990-10-22
申请人： Daniel C. Buck , Bruce R. McAvoy
发明人： Daniel C. Buck , Bruce R. McAvoy
IPC分类号： H01P1/203
CPC分类号： H01P1/20363 , Y10S505/70 , Y10S505/701
摘要： A stripline filter with suppressed electro-magnetic leakage. A filter topology suppresses generation of spurious waveguide modes by structuring microstrip launchers to operate as a waveguide way beyond cutoff of the waveguide modes, and by damping out remaining waveguide mode energy with lossy stripes in the filter package.
摘要翻译：具有抑制电磁泄漏的带状线滤波器。滤波器拓扑通过构造微带发射器来抑制寄生波导模式的产生，以作为波导方式超出波导模式的截止，并且通过滤波器封装中的有损条纹来消除剩余的波导模式能量。

6. 发明授权

US4586077A Switched surface acoustic wave apparatus for controlling cable television services 失效
标题翻译：用于控制有线电视服务的开关声表面波装置
公开(公告)号：US4586077A
公开(公告)日：1986-04-29
申请号：US618009
申请日：1984-06-06
申请人： James W. Wonn , Bruce R. McAvoy
发明人： James W. Wonn , Bruce R. McAvoy
IPC分类号： H04B3/54 , H03K17/00 , H04N7/16 , H04N7/10 , H03H9/72
CPC分类号： H04N7/162
摘要： A multichannel surface acoustic wave device is employed to respond to remote channel actuation signals to control the cable television program signals delivered to a subscriber premise.
摘要翻译：采用多声道声表面波装置来响应远程信道致动信号以控制传送到用户设备的有线电视节目信号。

7. 发明授权

US4785269A Magnetically tuned high overtone bulk acoustic resonator 失效
标题翻译：磁调谐高谐波体声波谐振器
公开(公告)号：US4785269A
公开(公告)日：1988-11-15
申请号：US863481
申请日：1986-05-15
申请人： John D. Adam , Bruce R. McAvoy
发明人： John D. Adam , Bruce R. McAvoy
IPC分类号： H03H9/00 , H03H9/22
CPC分类号： H03H9/22
摘要： Electroacoustic resonating apparatus capable of generating resonances of tunable frequencies. The apparatus includes two transducers coupled to a ferrimagnetic substrate at opposite ends thereof. The first transducer converts an input signal into a signal that produces bulk acoustic waves in the ferrimagnetic substrate. The second transducer receives the bulk acoustic waves and converts them into electrical signals, or alternatively a single transducer which performs both input and output functions. Variable magnetizing means located proximate to the ferromagnetic substrate induces a magnetic field throughout the substrate wherein the magnetic field alters the frequencies of the resonance of the acoustic waves. By varying the magnitude of the magnetic field, the frequencies of the resonances may be varied, thereby allowing tuning of the apparatus.
摘要翻译：能产生可调谐频率谐振的电声谐振装置。该装置包括在其相对端耦合到铁氧体基板的两个换能器。第一传感器将输入信号转换成在铁磁性衬底中产生体声波的信号。第二传感器接收体声波并将其转换为电信号，或者替代地执行输入和输出功能的单个换能器。位于铁磁性衬底附近的可变磁化装置在整个衬底上引起磁场，其中磁场改变了声波的共振频率。通过改变磁场的大小，可以改变谐振的频率，从而允许对装置进行调谐。

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