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1. 发明公开

EP3269036A1 REDUCING DURATION OF START-UP PERIOD FOR A CRYSTAL OSCILLATOR CIRCUIT 有权
标题翻译：降低晶体振荡器电路启动周期的持续时间
公开(公告)号：EP3269036A1
公开(公告)日：2018-01-17
申请号：EP15709523.3
申请日：2015-03-13
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： STENMAN, Anna Karin , STEFANIDIS, Stefanos , SUNDSTRÖM, Lars , TORABIAN ESFAHANI, Tahmineh
IPC分类号： H03B5/06 , H03B5/36
CPC分类号： H03B5/364 , H03B1/04 , H03B5/02 , H03B5/06 , H03B5/1215 , H03B5/1228 , H03B2200/0094 , H03L7/093
摘要： A crystal oscillator circuit comprises a crystal; oscillator circuitry for generating a crystal oscillation signal at an oscillation frequency; and a kick-start circuit for injecting pulses into the crystal during a start-up period. The oscillator circuitry comprises a differential pair of transistors and can operate in an oscillating mode or a start-up mode. In the oscillating mode, the differential pair of transistors is cross-coupled so that a gate terminal of one transistor is coupled to a drain terminal of the other transistor, and vice versa, and the drain terminals are coupled to the crystal to generate the crystal oscillation signal. In the start-up mode, the kick-start circuit drives the gate terminals of the transistors with said pulses. This crystal oscillator circuit has a decreased start-up time compared to prior art solutions and a reduced influence of parasitic oscillations.

2. 发明公开

EP3182583A3 OSCILLATOR SCHEME CAPABLE OF REDUCING FAR-OUT PHASE NOISE AND CLOSED-IN PHASE NOISE 有权
标题翻译：振荡器方案能够减少远距离相位噪声和闭合相位噪声
公开(公告)号：EP3182583A3
公开(公告)日：2017-09-06
申请号：EP16198335.8
申请日：2016-11-11
申请人： MediaTek Inc.
发明人： HUANG, Hao-Wei , CHEN, Yen-Tso , WANG, Kun-Yin
IPC分类号： H03B5/36 , H03B1/04
CPC分类号： H03B1/04 , H03B5/00 , H03B5/362 , H03B5/366 , H03B2200/0062 , H03B2200/009
摘要： An oscillator apparatus (100) includes an oscillator core circuit (105). The oscillator core circuit (105) includes an inverting transconductance amplifier (1052), at least one first capacitor (1053A, 4053A), at least one second capacitor (1053B, 4053B), and a resonator (1054). The at least one first capacitor (1053A, 4053A) is connected between an input of the inverting transconductance amplifier (1052) and a ground level. The at least one second capacitor (1053B, 4053B) is connected between an output of the inverting transconductance amplifier (1052) and the ground level. The resonator (1054) has a first port connected to the input of the inverting transconductance amplifier (1052) and a second port connected to the output of the inverting transconductance amplifier (1052). The first port is decoupled from the second port.
摘要翻译：振荡器装置（100）包括振荡器核心电路（105）。振荡器核心电路（105）包括反相跨导放大器（1052），至少一个第一电容器（1053A，4053A），至少一个第二电容器（1053B，4053B）和谐振器（1054）。至少一个第一电容器（1053A，4053A）连接在反相跨导放大器（1052）的输入和地电平之间。至少一个第二电容器（1053B，4053B）连接在反相跨导放大器（1052）的输出与地电平之间。谐振器（1054）具有连接到反相跨导放大器（1052）的输入的第一端口和连接到反相跨导放大器（1052）的输出的第二端口。第一个端口与第二个端口分离。

3. 发明公开

EP1892826A4 OSCILLATOR 审中-公开
标题翻译： OSZILLATOR
公开(公告)号：EP1892826A4
公开(公告)日：2008-06-04
申请号：EP06756408
申请日：2006-05-22
申请人： KOBE STEEL LTD
发明人： KEGASA KOYO , MANABE CHITAKA
IPC分类号： H03B5/04 , H03B5/12
CPC分类号： H03B5/02 , H03B1/04 , H03B5/1203 , H03B5/1231 , H03B5/187 , H03B5/362 , H03B2200/0008 , H03B2200/0062 , H03B2202/027
摘要： An oscillator is provided with an active element which outputs a signal having a specified frequency by performing oscillation at the prescribed frequency; an impedance element wherein an impedance becomes lower at a frequency lower than the prescribed frequency than the impedance at the prescribed frequency; and a capacitor. At least one of the signal terminals provided in the active element is connected to the ground through a series circuit of the impedance element and the capacitor.
摘要翻译：振荡器具有通过以规定频率进行振荡而输出规定频率的信号的有源元件，阻抗元件，其中阻抗在低于规定频率的频率下低于规定频率下的阻抗; 和一个电容器。设置在有源元件中的至少一个信号端子通过阻抗元件和电容器的串联电路连接到地。

4. 发明公开

EP1443640A1 Reference oscillator phase noise compensation circuitry 审中-公开
标题翻译： Schaltung zum Phasenrauschkompensieren eines参考文献
公开(公告)号：EP1443640A1
公开(公告)日：2004-08-04
申请号：EP03425048.0
申请日：2003-01-29
申请人： Siemens Mobile Communications S.p.A.
发明人： Colosimo, Aurelio
IPC分类号： H03B1/04
CPC分类号： H03B1/04
摘要： A phase noise compensation circuitry is connectible to a reference oscillator (14) which generates a reference signal, affected by phase noise ϕ( t ), exploitable either for modulation, demodulation, or simply frequency conversion. The compensation circuitry includes an mixer (17) which receives the reference signal, and a copy of the reference signal after π/2 phase shifting and delaying by a fixed delay τ spanning an integer number N of periods of the reference signal. The baseband signal at the output of the mixer (17) is proportional to the time derivative of the phase noise voltage. In a preferred embodiment the baseband signal is filtered and A/D converted before reaching a downstream numerical integrator (21) which provides a phase noise estimation voltage proportional to the difference between the phase noise voltage across the delay τ. The delay τ also spans an integer L N periods of the digital clock: L =1 is the preferred value. The output of the integrator (21), opportunely scaled out, acts as an address ϕ of two look-up tables (23, 24) for obtaining in correspondence respective digital samples sin (ϕ) and cos ( ϕ ). These digital samples are sent to a complex multiplier (11) which carries out the following digital products: ( r )=[ s I ( r )· cos ϕ] and ( r )=[ s Q ( r )· sin ϕ], in order to perform a digital compensation of the phase noise due to the reference signal. In case the compensation circuit is used by the transmitter the ( r ), ( r ) products are In-phase and In-quadrature phase-noise precompensated modulating components. In case the compensation circuit is used by the receiver the ( r ), ( r ) products are In-phase and In-quadrature phase-noise postcompensated demodulated components (fig.2).
摘要翻译：相位噪声补偿电路可连接到参考振荡器（14），其产生受相位噪声φ（t）影响的参考信号，可用于调制，解调或简单的频率转换。补偿电路包括接收参考信号的混频器（17）和在pi / 2相移之后的参考信号的副本以及跨越参考信号的整数N个周期的固定延迟τ的延迟。混频器（17）的输出端的基带信号与相位噪声电压的时间导数成比例。在优选实施例中，在到达下游数字积分器（21）之前对基带信号进行滤波和A / D转换，该下行数字积分器提供与跨越延迟τ的相位噪声电压之间的差成比例的相位噪声估计电压。延迟τ还跨越数字时钟的整数L

5. 发明授权

EP0865154B1 Method and apparatus for reducing noise in a low current oscillator 失效
标题翻译：用于与低功率振荡器减少噪声的方法和装置
公开(公告)号：EP0865154B1
公开(公告)日：2004-02-11
申请号：EP98301616.3
申请日：1998-03-04
申请人： STMicroelectronics, Inc.
发明人： Brady, James
IPC分类号： H03B1/04 , H03B5/32 , G06F1/18
CPC分类号： H03B5/32 , G06F1/182 , H03B1/04

6. 发明公开

EP0597617A1 Push-push ring resonator oscillator 失效
标题翻译： Push-Push Oszillator mit einem Ringresonator。
公开(公告)号：EP0597617A1
公开(公告)日：1994-05-18
申请号：EP93308739.7
申请日：1993-11-02
申请人： SPACE SYSTEMS / LORAL INC.
发明人： Fiedzuiszko, Slawomir J. , Curtis, John A.
IPC分类号： H03B5/18
CPC分类号： H03B15/003 , H03B1/04 , H03B5/04 , H03B5/1852 , H03B7/14 , H03B15/00 , H03B19/14 , H03B2009/126 , H03B2200/0016 , H03B2200/0098
摘要： A push-push microwave oscillator has two branch oscillators fabricated of a transistor and transmission line elements extending from terminals of the transistor, and a resonator which is fabricated of an annulus of superconductor material and serves to phase lock oscillations of the two branch oscillators. The superconductor material is a composite of a rare earth element and copper oxide such as yttrium-barium-copper oxide. A first transmission line in each of the branch oscillators extends past the resonator with a spacing to provide for electromagnetic coupling between the branch oscillator and the resonator. A second transmission line in each of the branch oscillators has a length equal to approximately one-quarter wavelength of the oscillation frequency to tune the branch oscillator to a common oscillation frequency. A third transmission line in each of the branch oscillators extends towards a junction point to form a summing unit for summing oscillations of the two branch oscillators to provide an output signal of the oscillator. The oscillator is constructed in stripline or microstrip form wherein components of the branch oscillators are coplanar with the resonator and are spaced apart from a ground plane by a dielectric layer of alumina or lanthanum aluminate. Power is extracted at an even multiple of the fundamental frequency, and has a improved accuracy of frequency and reduced phase noise, the latter arising because of a characteristic of the superconductor material wherein its microwave surface resistance increase proportionally with a square of an increase in frequency.
摘要翻译：推挽式微波振荡器具有由晶体管和从晶体管的端子延伸的传输线元件制成的两个分支振荡器，以及由超导体材料环形制造并用于锁相两个分支振荡器的振荡的谐振器。超导体材料是稀土元素和氧化铜如钇钡钡氧化物的复合物。每个分支振荡器中的第一传输线以间隔延伸超过谐振器以提供分支振荡器和谐振器之间的电磁耦合。每个分支振荡器中的第二传输线具有等于振荡频率的大约四分之一波长的长度，以将分支振荡器调谐到共同的振荡频率。每个分支振荡器中的第三传输线延伸到接合点以形成用于对两个分支振荡器的振荡求和的求和单元，以提供振荡器的输出信号。振荡器以带状或微带形式构成，其中分支振荡器的分量与谐振器共面并且通过氧化铝或铝酸镧的电介质层与接地平面间隔开。以基频的偶数倍提取功率，并且具有提高的频率精度和降低的相位噪声，后者由于超导体材料的特性而产生，其中其微波表面电阻与频率增加的平方成正比地增加。

7. 发明公开

EP3244542A1 METHOD AND DEVICE FOR MITIGATING INTERFERENCE DUE TO A WIRELESS CHARGING SIGNAL 有权转让
标题翻译：用于缓解由于无线充电信号引起的干扰的方法和设备
公开(公告)号：EP3244542A1
公开(公告)日：2017-11-15
申请号：EP16168749.6
申请日：2016-05-09
申请人： Intel IP Corporation
发明人： SAADA, Yossi , SCHULTZ, Christoph , ROTSTEIN, Ron
IPC分类号： H04B1/10 , H04B5/00
CPC分类号： H04B15/02 , H02J7/025 , H02J50/12 , H03B1/04 , H04B1/10 , H04B1/1027 , H04B5/0037
摘要： The disclosure relates to a mobile device, comprising: a radio receiver configured to receive a radio signal; a power receiving unit (PRU) configured to receive a wireless charging signal from a power transmission unit (PTU) configured to charge the mobile device; a wireless broadcast receiver configured to receive a harmonic of the wireless charging signal during charging of the mobile device; a frequency manager configured to scan for a frequency of the harmonic and to detect a fundamental frequency of the wireless charging signal based on the scanned harmonic; and a mitigation module configured to mitigate a harmonic content of the wireless charging signal in the received radio signal based on the detected fundamental frequency of the wireless charging signal.
摘要翻译：本公开涉及一种移动设备，包括：无线电接收机，被配置为接收无线电信号; 电力接收单元（PRU），被配置为从被配置为对所述移动设备充电的电力发送单元（PTU）接收无线充电信号; 无线广播接收器，被配置为在所述移动设备的充电期间接收所述无线充电信号的谐波; 频率管理器，被配置为扫描谐波的频率并且基于扫描的谐波检测无线充电信号的基频; 以及缓解模块，其被配置为基于检测到的无线充电信号的基频来缓解所接收的无线电信号中的无线充电信号的谐波含量。

8. 发明公开

EP0865154A3 Method and apparatus for reducing noise in a low current oscillator 失效
标题翻译：用于与低功率振荡器减少噪声的方法和装置
公开(公告)号：EP0865154A3
公开(公告)日：2000-11-22
申请号：EP98301616.3
申请日：1998-03-04
申请人： STMicroelectronics, Inc.
发明人： Brady, James
IPC分类号： H03B1/04 , H03B5/32 , G06F1/18
CPC分类号： H03B5/32 , G06F1/182 , H03B1/04
摘要： In a high current, high frequency integrated circuit chip characteristic of producing an excess of internal on-chip circuit induced noise with respect to a low current, low frequency circuit implemented on the high current, high frequency integrated circuit chip, a method is disclosed for reducing noise in the low current, low frequency circuit. The method includes placing noise sensitive components of the low current, low frequency circuit external to the integrated circuit chip, corresponding to an off-chip placement. An exclusive power supply reference line V (REF) tapped off of a power supply bus internal to the integrated circuit chip is provided. The exclusive power supply reference line V (REF) is tapped off the internal power supply bus on-chip at a physical location proximate the low current, low frequency circuit and routed off-chip. The noise sensitive components are connected between the low current, low frequency circuit and the power supply reference line V (REF) , wherein a noise differential in a power supplied to the low current, low frequency circuit on-chip and a power supplied to the noise sensitive components off-chip is minimized. An integrated circuit arrangement is also disclosed.

9. 发明公开

EP0778994A2 TUNABLE CRYSTAL OSCILLATOR WITH HARMONIC OUTPUT 失效
标题翻译：具调和调整输出的晶体振荡器
公开(公告)号：EP0778994A2
公开(公告)日：1997-06-18
申请号：EP96915119.0
申请日：1996-05-31
申请人： PHILIPS ELECTRONICS N.V.
发明人： VAN AMESFOORT, Alfonsus, Maria
IPC分类号： H03L7 , H03B1 , H03B5 , H04B1 , H03B19
CPC分类号： H03B5/368 , H03B1/04 , H03B5/362 , H03B19/00
摘要： In an oscillator arrangement (VCXO), an oscillation loop (OSL) oscillates at, approximately, the fundamental frequency of a crystal (XTL) included therein. The output signal (Sosc) of the oscillator arrangement (VCXO) is a harmonic extracted from the oscillation loop (OSL). To vary the frequency of the output signal (Sosc), tuning means (VAR) are included in the oscillation loop (OSL). A stage (FIL) in the oscillator arrangement (VCXO) prevents harmonic feedback into the oscillation loop (OSL). Such an oscillator arrangement (VCXO) can be tuned over a relatively large frequency range and has a monotonous tuning characteristic.

10. 发明公开

EP0656683A1 Anordnung zur Verringerung von Störungen bei Schwingkreisen in integrierten Schaltungen 失效
标题翻译： Anordnung zur Verringerung vonStörungenbei Schwingkreisen in integrierten Schaltungen。
公开(公告)号：EP0656683A1
公开(公告)日：1995-06-07
申请号：EP94118392.3
申请日：1994-11-23
申请人： DEUTSCHE THOMSON-BRANDT GMBH
发明人： Rieger, Martin , Rothermel, Albrecht
IPC分类号： H03B1/04 , H03L7/099
CPC分类号： H03B1/04 , H03B2202/04 , H03L7/0995
摘要： Es ist bekannt, in integrierten Schaltungen einen Oszillator zu verwenden, der einen Mischer ansteuert. Weiterhin wird dem Mischer durch einen äußeren Schwingkreis ein HF-Signal zugeführt, welches durch den Mischer in ein ZF-Siganl umgewandelt wird. Bei einer derartigen Anordnung entstehen durch Empfangen und Aussenden von hohen Frequenzen Störungen.
Der Erfindung liegt die Aufgabe zugrunde, auf einfache Weise eine Anordnung zur Verringerung von Störungen bei Schwingkreisen in integrierten Schaltungen zu schaffen. Erfindungsgemäß wird der äußere Schwingkreis in die integriete Schaltung integriert. Die Störungen, welche ansonsten durch die Anschluß-Pins entstanden sind, entfallen somit.
Insbesondere bei Fernsehempfängern
摘要翻译：已知在集成电路中使用驱动混频器的振荡器。此外，由混频器转换成IF信号的RF信号通过外部谐振电路馈送到混频器。在这种布置的情况下，作为高频的接收和传输的结果产生干扰。本发明基于以简单的方式提供用于减少集成电路中的谐振电路中的干扰的装置的目的。根据本发明，外部谐振电路集成在集成电路中。否则由连接引脚产生的干扰因此消失。特别是对于电视接收机。

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