公开(公告)号：MX9604102A

公开(公告)日：1997-08-30

申请号：MX9604102

申请日：1996-09-13

Applicant: THOMSON CONSUMER ELECTRONICS

Inventor： RUMREICH MARK FRANCIS

IPC: H03L7/093 ,  H04N5/91 ,  H03L7/107 ,  H04N9/89 ,  H03B05/00

Abstract: Aparato de circuito de enganche de fase para generar una señal oscilatoria enganchada en fase a un componente de una señal adicional, comprende un oscilador variable para generar la señal oscilatoria y una fuente de la señal adicional. Un detector de fase que responde a la señal oscilatoria y al componente de la señal adicional, proporciona una señal de error de fase que está apropiada al oscilador variable vía un limitador. Se proporcionan medios de circuito para controlar el nivel de limitacion del limitador. La limitacion dual mejora substancialmente la tolerancia de ruido del circuito y reduce la sensibilidad del circuito a inversiones de fase ocasionales del componente de la señal adicional. Se proporcionan mejoramientos adicional a estabilidad de circuito e inmunidad de ruido mediante un detector de desenganche, que detecta y totaliza las rotaciones de fase en una área seleccionada de un plano de fase y mediante un detector de envolvente de fase que mantiene una indicacion de cierre durante el ángulo de fase.

公开(公告)号：WO1998006170A1

公开(公告)日：1998-02-12

申请号：PCT/IB1997000731

申请日：1997-06-18

Applicant: PHILIPS ELECTRONICS N.V. ,  PHILIPS NORDEN AB

Inventor： PHILIPS ELECTRONICS N.V. ,  PHILIPS NORDEN AB ,  DIJKMANS, Eise, Carel

IPC: H03B05/00

CPC classification number: H03B5/364 ,  H03B5/32 ,  H03B2200/0082 ,  H03B2200/0094 ,  H03L3/00 ,  H03L5/00

Abstract: An oscillator provided with an amplitude controller (AMPREG1) which is coupled by an input (G1) to an amplitude reference terminal (AMPREF1). The amplitude of the oscillator signal at the output terminal (KU) can be adjusted through coupling of a voltage-generating means to the amplitude reference terminal (AMPREF1).

Abstract translation: 具有振幅控制器（AMPREG1）的振荡器，其通过输入（G1）耦合到幅度参考端子（AMPREF1）。 可以通过将电压产生装置耦合到幅度参考端子（AMPREF1）来调节输出端子（KU）处振荡器信号的幅度。

公开(公告)号：WO1994001927A1

公开(公告)日：1994-01-20

申请号：PCT/US1993006470

申请日：1993-07-09

Applicant: ANALOG DEVICES, INCORPORATED

Inventor： ANALOG DEVICES, INCORPORATED ,  REYNOLDS, David, C.

IPC: H03B05/00

CPC classification number: H03K3/0231

Abstract: A ring-type oscillator with a plurality of delay cells (10, 12, 14, 16) including differential pairs of MOS transistors (MN5, MN6; MN8, MN9; MN11, MN12; MN14, MN15). Current sources (MN4, MN7, MN10, MN13) supply current to each pair, and the magnitude of the current supplied is variable by a control voltage to alter the delay of the MOS devices, thereby to alter the frequency of oscillation. Each delay cell MOS device is connected in series with another MOS device (MP4-MP11) biased into its linear region to act as a load resistance. This load is variable by the control voltage so as to tend to maintain the gain of the delay cells constant with changes in frequency of oscillation.

Abstract translation: 一种具有多个延迟单元（10,12,14,16）的环形振荡器，包括MOS晶体管（MN5，MN6; MN8，MN9; MN11，MN12; MN14，MN15）的差分对。 电流源（MN4，MN7，MN10，MN13）为每一对提供电流，并且通过控制电压可变电流的大小可改变MOS器件的延迟，从而改变振荡频率。 每个延迟单元MOS器件与被偏置到其线性区域中的另一MOS器件（MP4-MP11）串联连接以用作负载电阻。 该负载可通过控制电压变化，从而随着振荡频率的变化趋向于保持延迟单元的增益恒定。

公开(公告)号：WO1994015394A1

公开(公告)日：1994-07-07

申请号：PCT/GB1993002594

申请日：1993-12-17

Applicant: HARVEY, Geoffrey, Philip

IPC: H03B05/00

CPC classification number: H03K3/037 ,  H03B5/02 ,  H03K17/04126 ,  H03K2217/0036 ,  H03L7/099 ,  H03L7/183

Abstract: An electronic circuit uses a resonance technique to reduce power consumption. The circuit contains function circuitry (14) that performs electronic functions. Certain elements (14F) of the function circuitry change state at a circuit frequency in response to one or more input signals, typically clock signals (CKR and C &cir& NOt K &cir& NOt R &cir& NOt ), that change state at the circuit frequency. A resonant system (50 or 140), which oscillates at the circuit frequency, is operated close to a resonant frequency so that the resonant system is largely in resonance. The resonant system is coupled to the function circuitry in order to help the indicated elements in changing state by overcoming parasitic capacitances and/or inductances associated with the function circuitry.

Abstract translation: 电子电路使用谐振技术来降低功耗。 该电路包含执行电子功能的功能电路（14）。 功能电路的某些元件（14F）响应于一个或多个输入信号（通常是在电路频率处改变状态的时钟信号（CKR和C＆Cir＆NOt K＆cir＆NOt R＆cir＆NOt）），以电路频率改变状态。 在电路频率下振荡的谐振系统（50或140）操作接近谐振频率，使谐振系统大部分谐振。 谐振系统耦合到功能电路，以通过克服与功能电路相关联的寄生电容和/或电感来帮助所指示的元件处于改变状态。

公开(公告)号：WO1992015149A1

公开(公告)日：1992-09-03

申请号：PCT/US1992001181

申请日：1992-02-11

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA ,  MARTIN, Kenneth, W. ,  BUCHWALD, Aaron, W.

IPC: H03B05/00

CPC classification number: H03K3/0315 ,  H03B27/00 ,  H03K19/212 ,  Y10S331/03

Abstract: A topology for a high speed voltage controlled oscillator (VCO) with quadrature outputs is produced utilizing four inverting differential circuits (12, 14, 16, 18). The fully differential four stage ring oscillator has outputs from alternate delay circuits combined in balanced exclusive OR gate frequency doublers (24, 26) to provide both in-phase and quadrature output signals at twice the ring oscillator frequency. The period of the quadrature delay signals is four gate delays and is easily realized in the Ghz frequency ranges. The in-phase and quadrature output signals are again combined in a balanced exclusive OR gate frequency doubler (36) to obtain a final output frequency quadruple the ring oscillator frequency.

公开(公告)号：WO1997001216A1

公开(公告)日：1997-01-09

申请号：PCT/US1996010380

申请日：1996-06-14

Applicant: MARVELL TECHNOLOGY GROUP, LTD. ,  SUTARDJA, Pantas ,  SUTARDJA, Sehat

Inventor： MARVELL TECHNOLOGY GROUP, LTD.

IPC: H03B05/00

CPC classification number: H03K3/0231 ,  H03L7/0895 ,  H03L7/0995

Abstract: A voltage controlled oscillator (900) is formed of two differential transconductance stages (902-1, 902-2) which have negative output conductances. The first stage (902-1) has a positive output coupled to a positive input of the second stage (902-2), and a negative output coupled to a negative input of the second stage. The second stage (902-2) has a positive output coupled to a negative input of the first stage (902-1), and a negative output coupled to a positive input of the first stage.

Abstract translation: 压控振荡器（900）由具有负输出电导的两个差分跨导级（902-1,902-2）形成。 第一级（902-1）具有耦合到第二级（902-2）的正输入的正输出，以及耦合到第二级的负输入的负输出。 第二级（902-2）具有耦合到第一级（902-1）的负输入的正输出，以及耦合到第一级的正输入的负输出。

公开(公告)号：WO1995028032A1

公开(公告)日：1995-10-19

申请号：PCT/US1995004355

申请日：1995-04-06

Applicant: MEDIA VISION, INC.

Inventor： MEDIA VISION, INC. ,  COLVIN, Bryan, J. ,  SHINDO, Masao

IPC: H03B05/00

CPC classification number: H03K3/0315 ,  H03B27/00 ,  H03L7/0995

Abstract: A timing generator contains an oscillator section (10) formed with a plural number of stages (S1-SN) for respectively producing a like number of stage signals (VS1-VSN) that sequentially change signal values at a basic oscillator frequency (f0). The oscillator section is typically implemented as a ring oscillator. In response to the stage signals, a timing-signal generating section (14) generates one or more timing signals (VT1-VTM), each having at least two transitions corresponding to transitions of two or more of the stage signals. A control section (12), preferably arranged in a phase-locked loop; causes the oscillator frequency and a reference frequency (fR) to have a substantially fixed relationship.

Abstract translation: 定时发生器包括形成有多个级（S1-SN）的振荡器部分（10），用于分别产生以基本振荡器频率（f0）顺序改变信号值的相同数量的级信号（VS1-VSN）。 振荡器部分通常被实现为环形振荡器。 响应于级信号，定时信号产生部分（14）产生一个或多个定时信号（VT1-VTM），每个定时信号具有对应于两个或更多个级信号的转变的至少两个转变。 控制部分（12），优选地布置在锁相环中; 使振荡器频率和参考频率（fR）具有基本上固定的关系。