公开(公告)号：US3706928A

公开(公告)日：1972-12-19

申请号：US3706928D

申请日：1964-11-12

Applicant: US NAVY

Inventor： BECK EMANUEL A ,  BASSNETT ARTHUR J

IPC: H03B21/02 ,  H03B25/00

CPC classification number: H03B21/02

Abstract: The present invention provides a signal generator capable of producing randomly selected coherent output frequencies. Specifically, the proposed generator comprises a first section which generates a carrier frequency, and a second section, containing a chain of frequency multipliers, which is capable of producing a plurality of coherent modulating frequencies. The carrier frequency is first selectively modulated with random ones of the plurality of modulating frequencies to produce high and low sideband and the high and low sidebands are then selectively connected to the output of the generator by a random code.

Abstract translation: 本发明提供了能够产生随机选择的相干输出频率的信号发生器。 具体地，所提出的发生器包括产生载波频率的第一部分和包含能够产生多个相干调制频率的频率乘法器链的第二部分。 首先用多个调制频率中的随机调制频率对载波频率进行选择性调制，以产生高边和低边带，然后通过随机码将高边和低边带选择性地连接到发生器的输出端。

公开(公告)号：US3472964A

公开(公告)日：1969-10-14

申请号：US3472964D

申请日：1965-12-29

Applicant: TEXAS INSTRUMENTS INC

Inventor： HOGUE VERNON D

IPC: G10L11/00 ,  H03B25/00

CPC classification number: G10L25/00

公开(公告)号：US3323513A

公开(公告)日：1967-06-06

申请号：US43106665

申请日：1965-02-08

Applicant: TELEFUNKEN PATENT

Inventor： MANFRED GNADKE

IPC: A61B5/07 ,  G01N27/28 ,  H03B5/12 ,  H03B25/00 ,  H03C3/14 ,  H03C3/16

CPC classification number: H03C3/16 ,  A61B5/073 ,  G01N27/28 ,  H03B5/1203 ,  H03B5/1231 ,  H03B25/00 ,  H03B2200/0048 ,  H03C3/145

公开(公告)号：US10826467B1

公开(公告)日：2020-11-03

申请号：US16506451

申请日：2019-07-09

Applicant: NXP B.V.

Inventor： Xu Zhang ,  Siamak Delshadpour

IPC: H03K3/03 ,  H03B25/00 ,  G06F1/06

Abstract: A free running oscillator (FRO) includes a reference current generator, a current converter, and first and second oscillator cores. The reference current generator generates a first current. The current converter generates a second current based on the first current. The first oscillator core generates a clock signal at a first frequency based on a first value of the second current. The second oscillator core generates a clock signal at a second frequency based on a second value of the second current. The second frequency may be lower than the first frequency, and the second value of the second current lower than the first value of the second current.

公开(公告)号：US09444438B2

公开(公告)日：2016-09-13

申请号：US14298559

申请日：2014-06-06

Applicant: STMicroelectronics S.r.l.

Inventor： Emanuele Depaoli ,  Giovanni Steffan ,  Massimo Pozzoni ,  Simone Erba ,  Enrico Monaco

IPC: H03B19/00 ,  H03K5/00 ,  H03B5/12 ,  H03B25/00

CPC classification number: H03K5/00006 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/124 ,  H03B25/00 ,  H03B2200/0074

Abstract: A frequency doubling device suitable to generate an output terminal voltage oscillating at a differential frequency double the frequency of the input differential voltage, includes a first differential pair of P-type transistors and a second differential pair of N-type transistors controlled by the differential input voltage, as well as an LC oscillator including a LC resonant dipole through which the absorbed current is forced by two differential pairs of transistors.

Abstract translation: 适用于产生以差分频率振荡输入差分电压的频率的输出端子电压的倍频装置包括由差分输入端控制的P型晶体管的第一差分对和N型晶体管的第二差分对， 电压以及包括LC谐振偶极子的LC振荡器，吸收的电流通过两个差分对的晶体管被​​迫使。

公开(公告)号：US20090302953A1

公开(公告)日：2009-12-10

申请号：US12132676

申请日：2008-06-04

Applicant: Haiwen Xi ,  Dian Song ,  Song S. Xue

Inventor： Haiwen Xi ,  Dian Song ,  Song S. Xue

IPC: H03B25/00

CPC classification number: H03B27/00 ,  H03B15/006

Abstract: Apparatus to generate signals with multiple phases are described. The apparatus includes a fixed multilayer stack providing a varying magnetic field and at least two sensors adjacent the fixed multilayer stack to sense the varying magnetic field and generate at least two output signals. The frequency of the output signals can be tuned by an input current.

Abstract translation: 描述用于产生具有多个相位的信号的装置。 该装置包括提供变化的磁场的固定多层堆叠和与固定多层堆叠相邻的至少两个传感器，以感测变化的磁场并产生至少两个输出信号。 可以通过输入电流调节输出信号的频率。

公开(公告)号：US4952936B2

公开(公告)日：1995-11-28

申请号：US24253388

申请日：1988-09-12

Applicant: BEL TRONICS LTD

Inventor： MARTINSON GLEN

IPC: G01S7/02 ,  G01S7/285 ,  H03B25/00 ,  H04B1/28 ,  H01D7/10

CPC classification number: G01S7/022

公开(公告)号：US5162745A

公开(公告)日：1992-11-10

申请号：US649087

申请日：1991-01-31

Applicant: Claus Koken

Inventor： Claus Koken

IPC: H03B25/00 ,  G06F1/03 ,  H03B28/00

CPC classification number: G06F1/0321 ,  G06F2101/04

Abstract: A multichannel sine synthesizer for the primary signal production in measuring signal generators having a phase accumulator (11), a low-pass filter (12), an interposed first synthesis channel (13) and a clock control unit (25) which together convert a phase increment applied to the phase accumulator (11) into a sinusoidal signal. A problem in such synthesizers is the comparatively low maximum frequency of the sinusoidal signal produced because this frequency is limited by alias frequency effects. This is the reason why, in order to increase the maximum frequency with the same clock frequency, there is connected parallel to the synthesis channel (13) at least one further modified synthesis channel (26), which operates so as to be shifted in the time and to the input side of which is applied an additive phase value constant with a given frequency. Furthermore, via the clock control unit, each further synthesis channel (26) receives a clock signal individually shifted in time so that at the output of a summator (15) a sinusoidal signal appears. This signal has a maximum frequency increased by a multiple with respect to the monochannel synthesizer (13). The operative (Nyquist) sampling rate is increased proportionally to the parallel synthesis channels (26) and a sufficient attenuation of the alias frequency components is obtained by the low-pass filter (12).

Abstract translation: 一种多通道正弦合成器，用于在具有相位累加器（11），低通滤波器（12），插入的第一合成通道（13）和时钟控制单元（25）的测量信号发生器中产生主信号，其一起转换 施加到相位累加器（11）的相位增量变为正弦信号。 这种合成器中的问题是由于该频率受到别名频率效应的限制而产生的正弦信号的相对较低的最大频率。 这就是为什么为了以相同的时钟频率增加最大频率的原因，与合成信道（13）并联连接至少一个进一步修改的合成信道（26），其操作以在 时间，其输入侧应用给定频率的相位值常数。 此外，通过时钟控制单元，每个另外的合成信道（26）接收时间上分别移位的时钟信号，使得在求和器（15）的输出处出现正弦信号。 该信号具有相对于单声道合成器（13）增加多倍的最大频率。 操作（奈奎斯特）采样率与并行合成通道（26）成比例地增加，并且通过低通滤波器（12）获得混合频率分量的充分衰减。

公开(公告)号：US4573025A

公开(公告)日：1986-02-25

申请号：US595841

申请日：1984-04-02

Applicant: William E. McKinzie, III

Inventor： William E. McKinzie, III

IPC: H03B25/00 ,  H03B5/18

CPC classification number: H03B25/00

Abstract: An oscillator having the ability to oscillate at a plurality of discrete frequencies in response to an applied digital signal is disclosed. A crystal-controlled, resonant circuit utilizing passive components as frequency determining elements and a PIN diode switching scheme allows the oscillator to demonstrate a tendency for each of the plurality of discrete frequencies to drift equally in response to temperature changes. A two-transistor, emitter coupled amplifying section uses a current mirror for biasing and provides an impedance matching network.

Abstract translation: 公开了具有响应于所应用的数字信号以多个离散频率振荡的能力的振荡器。 利用无源元件作为频率确定元件和PIN二极管切换方案的晶体控制的谐振电路允许振荡器响应于温度变化而显示出多个离散频率中的每一个均匀漂移的倾向。 双晶体管，发射极耦合放大部分使用电流镜来偏置并提供阻抗匹配网络。

公开(公告)号：US4468634A

公开(公告)日：1984-08-28

申请号：US322319

申请日：1981-11-17

Applicant: Michiaki Takagi ,  Eishi Momosaki

Inventor： Michiaki Takagi ,  Eishi Momosaki

IPC: G01K7/32 ,  H03B5/36 ,  H03B25/00

CPC classification number: G01K7/32 ,  Y10S331/03

Abstract: An oscillator circuit for simultaneously outputting two frequency signals comprises a single resonator vibrating in two modes at different frequencies, an amplitude modulating circuit for modulating one of said two frequencies with a third frequency, a feedback circuit receiving the output of the amplitude modulating circuit, a detector demodulating the amplitude modulated signal, the demodulated signal being the third frequency used to modulate the output of the resonator. The two frequencies of the resonator are close together in value and the third frequency signal is the difference in frequency of the two resonator outputs. Circuit outputs are one resonator frequency and the difference frequency.

Abstract translation: 用于同时输出两个频率信号的振荡器电路包括以不同频率以两种模式振动的单个谐振器，用于以第三频率调制所述两个频率之一的幅度调制电路，接收幅度调制电路的输出的反馈电路， 检测器解调幅度调制信号，解调信号是用于调制谐振器的输出的第三频率。 谐振器的两个频率值接近，第三频率信号是两个谐振器输出的频率差。 电路输出是一个谐振器频率和差频。