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81. 发明授权

US06894475B2 Scanning RF receiver 失效
标题翻译：扫描射频接收机
公开(公告)号：US06894475B2
公开(公告)日：2005-05-17
申请号：US10275186
申请日：2001-04-25
申请人： Andrew Barry Stephen , Steven J. Holmes , Keith Raymond Fuller
发明人： Andrew Barry Stephen , Steven J. Holmes , Keith Raymond Fuller
IPC分类号： H03J7/32 , G01R23/16
CPC分类号： H03J7/32
摘要： A receiver for analyzing input RF signals includes a first stage that includes an input for receiving one or more RF signals for analysis and a first local oscillator having an output including a first plurality of frequencies. The input is mixed with the local oscillator output in a first mixer to generate a first intermediate frequency spectrum output. A second stage includes a second local oscillator adapted to produce as output a sweep signal traversing a second plurality of frequencies and a second mixer for combining the second local oscillator output with the first intermediate frequency output to generate a second intermediate frequency output.
摘要翻译：用于分析输入RF信号的接收机包括第一级，其包括用于接收用于分析的一个或多个RF信号的输入端和具有包括第一多个频率的输出的第一本地振荡器。输入与第一混频器中的本地振荡器输出混合以产生第一中频频谱输出。第二级包括适于产生穿过第二多个频率的扫描信号作为输出的第二本地振荡器和用于将第二本地振荡器输出与第一中频输出组合以产生第二中频输出的第二混频器。

82. 发明授权

US5397988A Method and device for tuning a HF source, in particular for tuning a microwave source of an electron spin resonance spectrometer 失效
标题翻译：用于调谐HF源的方法和装置，特别是用于调谐电子自旋共振光谱仪的微波源
公开(公告)号：US5397988A
公开(公告)日：1995-03-14
申请号：US924559
申请日：1992-07-31
申请人： Dieter Schmalbein , Karoly Holczer , Viktor Ringeisen
发明人： Dieter Schmalbein , Karoly Holczer , Viktor Ringeisen
IPC分类号： G01R33/60 , H03J7/32 , G01R33/20
CPC分类号： H03J7/32 , G01R33/60
摘要： A method and a device for tuning a HF source, which oscillates at a basic frequency, to a narrow-band component, in particular for tuning a microwave source 61 of an electron spin resonance spectrometer to a resonator 62. In order to mutually tune the resonance frequency F.sub.R of the resonator 62 and the basic frequency f.sub.O of the source 61, the output signal of the source 61 is mixed in a mixer 64 with a sweep signal of an oscillator 65. The behavior of the resonator 62 is observed on a visual display unit 67, via a detector 68, in the form of what is called a "mode curve", and the source 61 is re-tuned so that two dips in the mode curve are brought into coincidence.
摘要翻译：一种用于将以基本频率振荡的HF源调谐到窄带分量的方法和装置，特别是用于将电子自旋共振光谱仪的微波源61调谐到谐振器62.为了相互调谐谐振器62的谐振频率FR和源61的基本频率f0，源61的输出信号在混频器64中与振荡器65的扫描信号混合。谐振器62的行为在视觉上观察显示单元67经由检测器68以所谓的“模式曲线”的形式，并且重新调整源61，使得模式曲线中的两个下降被重合。

83. 再颁专利

USRE31943E Multichannel coherent receiver 失效
标题翻译：多通道相干接收机
公开(公告)号：USRE31943E
公开(公告)日：1985-07-09
申请号：US379562
申请日：1982-05-18
申请人： Patrick J. Ready
发明人： Patrick J. Ready
IPC分类号： G01R23/175 , H03J7/32 , H04J1/08
CPC分类号： G01R23/175 , H03J7/32 , H04J1/08
摘要： A multichannel coherent receiver employing multiple delay lines in series or a tapped delay line into which a received signal band is introduced. The signal band at each tap or increment of delay is mixed with individual related frequencies and the product from the mixers summed and further mixed with the output of a swept oscillator. The composite delayed signal band is introduced into a bank of dispersive filters followed by means for deriving in-phase and quadrature components. Signals contained within the signal band may then be detected resulting in coherent channelization, improved frequency resolution and full time coverage sampling.

84. 发明授权

US3701949A Wideband frequency scanning radio receiver 失效
标题翻译：宽带频率扫描无线电接收器
公开(公告)号：US3701949A
公开(公告)日：1972-10-31
申请号：US3701949D
申请日：1971-03-22
申请人： CUTLER HAMMER INC
发明人： TURKISH SIDNEY
IPC分类号： H03J7/20 , H03J7/28 , H03J7/32 , H04B1/36
CPC分类号： H03J7/28 , H03J7/20 , H03J7/32
摘要： A superheterodyne system utilizing successive harmonics of an electrically tunable local oscillator, which is repeatedly swept over a frequency range of about one octave or less, to scan throughout a radio frequency range of several octaves in a substantially continuous manner.
摘要翻译：使用电可调谐本地振荡器的连续谐波的超外差系统，其被重复地扫描在大约一个八度或更小的频率范围内，以基本上连续的方式在多个八度的无线电频率范围内扫描。

85. 发明授权

US3680123A Luneberg lens ecm apparatus 失效
标题翻译： LUNEBERG镜头ECM设备
公开(公告)号：US3680123A
公开(公告)日：1972-07-25
申请号：US3680123D
申请日：1970-10-09
申请人： US NAVY
发明人： BRYANT MARION B , HUNT BARRY R
IPC分类号： G01S1/02 , G01S19/14 , H01Q19/06 , H01Q25/00 , H03J7/32 , G01S3/18
CPC分类号： H03J7/32 , G01S1/02 , H01Q19/062 , H01Q25/007
摘要： A Luneberg lens antenna system for ECM applications. A cylindrical Luneberg lens of suitable dimensions is rigidly mounted between a pair of juxtaposed, parallel conducting plates. A selectively predetermined number of feed-horns are mounted and disposed independently of the lens about the periphery of the lens and in close proximity thereto. The antenna system can be combined with an IFM (Instantaneous Frequency Measurement) receiver to provide instantaneous reception of signals and precise and accurate direction-finding of signals over 360* azimuth. The antenna system also features high-gain, narrow beamwidths, low sidelobes, and acceptance of multiple signal polarizations.
摘要翻译：用于ECM应用的Luneberg透镜天线系统。具有合适尺寸的圆柱形Luneberg透镜刚性地安装在一对并置的平行导电板之间。选择性地预定数量的馈送喇叭被安装和独立于透镜围绕透镜的周边并且紧邻其设置。天线系统可以与IFM（瞬时频率测量）接收器组合，以提供信号的瞬时接收以及在360°方位角上精确和精确地测量信号的方向。天线系统还具有高增益，窄波束宽度，低旁瓣和多信号偏振接收。

86. 发明授权

US3591708A Color television receiver 失效
公开(公告)号：US3591708A
公开(公告)日：1971-07-06
申请号：US3591708D
申请日：1969-03-17
申请人： MATSURHITA ELECTRIC IND CO LTD
发明人： HIRASHIMA MASAYOSHI
IPC分类号： H03J7/24 , H03J7/32 , H04N9/71 , H04N9/12
CPC分类号： H03J7/32 , H03J7/24 , H04N9/71
摘要： A color television receiver, wherein a tuner is adapted to successively receive different broadcast waves under the control of a control voltage of stepped waveform, switching elements are successively rendered conductive for a predetermined period by a logical product of a signal resulting from detecting as to whether the broadcast stations are transmitting color programs or black-and-white programs, said switching elements corresponding in number to the broadcast waves so that indicator means connected with the respective switching elements are energized, thereby indicating whether the broadcast stations are transmitting color programs or black-and-white programs.

87. 发明授权

US3527979A Multiple "a" type display device having magnetically deflected cathode ray tube 失效
标题翻译：具有磁性偏转阴极射线管的多个“A”型显示装置
公开(公告)号：US3527979A
公开(公告)日：1970-09-08
申请号：US3527979D
申请日：1968-07-16
申请人： LORAL CORP
发明人： HOLLANDER JEROME , ENGELSON EERNARD , LEINER JEROME , NASHMAN LUTHER
IPC分类号： G01R13/28 , H03J7/32 , H01J29/76
CPC分类号： H03J7/32 , G01R13/28

88. 发明授权

US3323042A Apparatus for switching radio frequency energy through plural circuit connections todisplay device 失效
标题翻译：用于通过多个电路连接将射频能量切换到显示装置的装置
公开(公告)号：US3323042A
公开(公告)日：1967-05-30
申请号：US24756962
申请日：1962-12-27
申请人： BLONDER TONGUE ELECT
发明人： BLONDER ISAAC S
IPC分类号： H03J7/32
CPC分类号： H03J7/32

89. 发明授权

US3303422A Signal voltage peak and frequency measuring apparatus using heterodyne principle 失效
标题翻译：信号电压峰值和使用外差原理的频率测量仪器
公开(公告)号：US3303422A
公开(公告)日：1967-02-07
申请号：US18203862
申请日：1962-03-23
申请人： ROHDE & SCHWARZ OHG
发明人： HORST LUCIUS
IPC分类号： G01R19/00 , G01R19/04 , G01R23/00 , H03J7/32
CPC分类号： H03J7/32 , G01R19/0007 , G01R19/04 , G01R23/00

90. 发明授权

US3170118A Panoramic receiver for multiplexing communication signals from multiple sources 失效
标题翻译：用于复用来自多个源的通信信号的全景接收机
公开(公告)号：US3170118A
公开(公告)日：1965-02-16
申请号：US5198660
申请日：1960-08-25
申请人： LING TEMCO VOUGHT INC
发明人： LOGAN JIMMIE J
IPC分类号： H03J7/32
CPC分类号： H03J7/32

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