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1. 发明公开

EP1557958A1 Direct digital conversion tuner and method for using same 有权
标题翻译：直接数字转换调谐器及其使用方法
公开(公告)号：EP1557958A1
公开(公告)日：2005-07-27
申请号：EP05000812.7
申请日：2005-01-17
申请人： Broadcom Corporation
发明人： Dauphinee, Leonard
IPC分类号： H04B1/28
CPC分类号： H03J3/26 , H03G3/3042 , H04B1/0003 , H04B1/28
摘要： A direct sampling tuner includes a low noise amplifier and an optional dynamically configurable band pass filter coupled to the low noise amplifier. The optional filter is configured to pass a selected band of channels. The tuner further includes a relatively high accuracy, multi-bit analog-to-digital converter ("ADC") coupled to the LNA or to the optional dynamically configurable band pass filter. The ADC operates at greater than about twice a frequency of a sampled signal. The ADC directly samples the spectrum of the selected channels at the Nyquist frequency, thus avoiding image problems presented by conventional tuners.
摘要翻译：直接采样调谐器包括低噪声放大器和耦合到低噪声放大器的可选动态可配置带通滤波器。可选滤波器配置为传送选定的频道频道。调谐器还包括耦合到LNA或可选动态可配置带通滤波器的相对高精度的多位模数转换器（“ADC”）。 ADC的工作频率大约是采样信号频率的两倍。 ADC以奈奎斯特频率直接采样所选通道的频谱，从而避免传统调谐器出现的图像问题。

2. 发明公开

EP0584732A1 Double tuned circuit with balanced output and image trap 失效
标题翻译： Zweifach abgestimmte Schaltung mit symmetryrischem Ausgang und Spiegelfrequenzsperrkreis。
公开(公告)号：EP0584732A1
公开(公告)日：1994-03-02
申请号：EP93113318.5
申请日：1993-08-20
申请人： THOMSON CONSUMER ELECTRONICS, INC.
发明人： Wignot, Leroy Samuel , Pugel, Michael Anthony
IPC分类号： H03J3/26
CPC分类号： H03J3/26
摘要： Conversion of an RF signal amplifier from an unbalanced signal configuration to a balanced signal configuration is provided while including an image trap for both sides of the balanced circuit. The grounded side of the secondary of a double tuned circuit (14,16,18,20,22) is lifted from ground to provide a balanced circuit configuration. A trap filter is provided in the balanced circuit configuration by a pair of small capacitors (CS1,CS2) coupled between the balanced secondary leads (26a,26b) to appropriate signal nodes.
摘要翻译：提供RF信号放大器从不平衡信号配置到平衡信号配置的转换，同时包括平衡电路两侧的图像陷波器。双调谐电路（14,16,18,20,22）的次级的接地侧从地面提升以提供平衡电路配置。通过耦合在平衡的次级引线（26a，26b）之间的一对小电容器（CS1，CS2）到适当的信号节点，在平衡电路配置中提供陷波滤波器。

3. 发明公开

EP3331163A1 METHOD OF ELECTRICAL BALANCING IN A THREE-PHASE SYSTEM 有权
公开(公告)号：EP3331163A1
公开(公告)日：2018-06-06
申请号：EP17203046.2
申请日：2017-11-22
申请人： Power Electronics España, S.L.
发明人： SALVO LILLO, David , SALVO LILLO, Abelardo , POVEDA LERMA, Antonio , CAMPS SORIANO, José Luis , ANTÓN PONS, Marcial
IPC分类号： H03J3/26
CPC分类号： H02M5/458 , H02M1/32 , H02M5/00 , H02M2001/325 , H03J3/26
摘要： A method of electrical balancing in a three-phase system is disclosed. The steps are: obtaining the magnitude and phase of each line-to-neutral output voltage; aligning a first line-to-neutral voltage with the real axis; choosing two voltages and adding a third voltage complex conjugate of the greater of the two previous voltages; calculating the positive sequence, the negative sequence and the zero sequence; cancelling the negative sequence; calculating the positive sequence and zero sequence of the new line-to-neutral voltage system; adding positive sequence voltage and zero sequence voltage to the positive sequence and zero sequence; calculating the new line-to-neutral voltages from the new positive sequence voltage and the new zero sequence voltage, with negative sequence voltage equal to zero; repeating the two previous steps until the module of the new third line-to-neutral voltage is equal to the module of the line-to-neutral output voltage discarded in the third step.

4. 发明公开

EP2077618A1 Double-tuning circuit of television tuner 有权
标题翻译： Doppelter Abstimmkreis eines Fernsehtuners
公开(公告)号：EP2077618A1
公开(公告)日：2009-07-08
申请号：EP08021919.9
申请日：2008-12-17
申请人： Alps Electric Co., Ltd.
发明人： Yamamoto, Masaki
IPC分类号： H03J3/18 , H03J3/26 , H03H7/09 , H03H7/01
CPC分类号： H03J3/26 , H03H7/0161 , H03H2007/013 , H03H2210/012 , H03J3/185 , H03J2200/32
摘要： In a double-tuning circuit including a primary tuning circuit having a first inductor (1) and a first variable capacitive element (3) connected in parallel and a secondary tuning circuit having a second inductor (2) and a second variable capacitive element (4) connected in parallel, a fixed part of a copper-foil pattern (11) is connected to a connection point at which the double-tuning circuit is connected to an input terminal of a frequency mixing circuit (24), and a tip part (11a) of the copper-foil pattern (11) extends to near the first inductor (1), whereby a trap circuit for attenuating an image frequency component is formed. A pattern (L) is formed between a ground-side terminal of the first inductor (1) and the ground, and a capacitor (31) is connected between a connection point at which the first inductor (1) is connected to one terminal of the pattern (L) and a ground-side terminal of the second variable capacitive element (4).
摘要翻译：在包括具有并联连接的第一电感器（1）和第一可变电容元件（3）的初级调谐电路的双调谐电路和具有第二电感器（2）和第二可变电容元件（4）的二次调谐电路），铜箔图案（11）的固定部分连接到双调谐电路连接到混频电路（24）的输入端子的连接点，以及尖端部分（铜箔图案（11a）11a）延伸到第一电感器（1）附近，从而形成用于衰减图像频率分量的陷波电路。在第一电感器（1）的接地侧端子与地之间形成有图案（L），并且电容器（31）连接在第一电感器（1）连接到第一电感器图案（L）和第二可变电容元件（4）的接地侧端子。

5. 发明公开

EP1594221A1 Single conversion tuner 审中-公开
标题翻译：调谐器Einzelkonversion
公开(公告)号：EP1594221A1
公开(公告)日：2005-11-09
申请号：EP04010664.3
申请日：2004-05-05
申请人： DEUTSCHE THOMSON-BRANDT GMBH
发明人： Armbruster, Veit , Selz, Alfred
IPC分类号： H03D7/18 , H04N5/455
CPC分类号： H04N5/4446 , H03J3/26 , H03J2200/14 , H04B1/26 , H04B1/406
摘要： A single conversion tuner suitable for receiving RF signals having different requirements as to selectivity, linearity and image rejection is presented. Tuners of this kind are particularly useful for digital terrestrial as well as cable reception, where different modulation schemes require very high image rejection ratios on one hand and high linearity or pass band flatness on the other hand. The inventive tuner features a double-tuned tuneable filter in combination with an image reject mixer. The double-tuned filter provides excellent pass band flatness, while the image reject mixer provides a high intrinsic image rejection. The image rejection ratio of the combination of image reject mixer and tuneable filter is very high and fulfils the requirements of commonly used modulation schemes such as 8VSB, while the pass band flatness is compliant with the requirements for modulation schemes such as QAM.
摘要翻译：提出了适用于接收对于选择性，线性和镜像抑制具有不同要求的RF信号的单个转换调谐器。这种调谐器对于数字地面和电缆接收特别有用，其中不同的调制方案一方面需要非常高的图像抑制比，另一方面要求高线性度或通带平坦度。本发明的调谐器具有与图像拒绝混合器组合的双调谐可调滤波器。双调谐滤波器提供优异的通带平坦度，而图像抑制混频器提供高内在的图像抑制。图像抑制混频器和可调滤波器组合的图像抑制比非常高，满足了常用调制方案（如8VSB）的要求，而通带平坦度符合QAM等调制方案的要求。

6. 发明授权

EP1104103B1 Switchable band filter 有权
标题翻译：可逆带式过滤机
公开(公告)号：EP1104103B1
公开(公告)日：2004-03-24
申请号：EP00309463.8
申请日：2000-10-27
申请人： ALPS ELECTRIC CO., LTD.
发明人： Yamamoto, Masaki, C/o Alps Electric Co., Ltd. , Yamamoto, Akira, C/o Alps Electric Co., Ltd.
IPC分类号： H03J5/24
CPC分类号： H03J3/26 , H03J5/244

7. 发明授权

EP0584732B1 Double tuned circuit with balanced output and image trap 失效
标题翻译：具有平衡输出和图像频抑制电路的双调谐电路
公开(公告)号：EP0584732B1
公开(公告)日：1997-07-30
申请号：EP93113318.5
申请日：1993-08-20
申请人： THOMSON CONSUMER ELECTRONICS, INC.
发明人： Wignot, Leroy Samuel , Pugel, Michael Anthony
IPC分类号： H03J3/26
CPC分类号： H03J3/26

8. 发明授权

EP2355349B1 Wideband analog bandpass filter 有权转让
标题翻译：模拟宽带通滤波器
公开(公告)号：EP2355349B1
公开(公告)日：2013-01-23
申请号：EP11250106.9
申请日：2011-02-01
申请人： Hittite Microwave Corporation
发明人： Koechlin, Michael
IPC分类号： H03J3/26 , H03H7/01
CPC分类号： H03J3/26 , H03H7/0161 , H03H7/1775 , H03H2210/012 , H03H2210/015

9. 发明公开

EP2355349A1 Wideband analog bandpass filter 有权转让
标题翻译：模拟器Breitbandpassfilter
公开(公告)号：EP2355349A1
公开(公告)日：2011-08-10
申请号：EP11250106.9
申请日：2011-02-01
申请人： Hittite Microwave Corporation
发明人： Koechlin, Michael
IPC分类号： H03J3/26 , H03H7/01
CPC分类号： H03J3/26 , H03H7/0161 , H03H7/1775 , H03H2210/012 , H03H2210/015
摘要： A wideband bandpass filter includes an RF input terminal, an RF output terminal, a plurality of electrically tunable coupling capacitors coupled in series between the RF input and output terminals, and a plurality of resonating circuits each including an electrically tunable resonator capacitor coupled to one of the coupling capacitors. At least one resistance is coupled in series between at least one of the coupling capacitors for providing enhanced out of band rejection of the filter.
摘要翻译：宽带带通滤波器包括RF输入端子，RF输出端子，串联耦合在RF输入和输出端子之间的多个电可调谐耦合电容器，以及多个谐振电路，每个谐振电路包括耦合到耦合电容。至少一个电阻串联在至少一个耦合电容器之间，用于提供滤波器的增强的带外抑制。

10. 发明公开

EP2139112A1 Double-tuned circuit 审中-公开
标题翻译： Zweikreisschaltung
公开(公告)号：EP2139112A1
公开(公告)日：2009-12-30
申请号：EP09008167.0
申请日：2009-06-22
申请人： Alps Electric Co., Ltd.
发明人： Yamamoto, Masaki
IPC分类号： H03J3/18 , H03J3/26 , H03J5/24
CPC分类号： H03J3/26 , H03J3/185 , H03J5/244 , H03J2200/32 , H03J2200/37
摘要： A band-switching double-tuned circuit (30) includes a primary tuned circuit formed of a circuit having a first inductance element (L1, L2) and a first variable capacitance element (VD1) connected parallel to each other, and a secondary tuned circuit formed of a circuit having a second inductance element (L4, L5) opposed to the first inductance element (L1, L2) and a second variable capacitance element (VD3) connected parallel to each other, wherein a trap circuit is formed by connecting a first capacitance (C11) between a connection point (P1) of the second inductance element (L4, L5) and the second variable capacitance element (VD3) and a middle point (P2) of the first inductance element (L1, L2).
摘要翻译：带开关双调谐电路（30）包括由具有彼此并联连接的第一电感元件（L1，L2）和第一可变电容元件（VD1）的电路形成的初级调谐电路，以及二次调谐电路由具有与第一电感元件（L1，L2）相对的第二电感元件（L4，L5）和彼此并联连接的第二可变电容元件（VD3）的电路形成，其中陷阱电路通过连接第一第二电感元件（L4，L5）的连接点（P1）与第二可变电容元件（VD3）的连接点（P1）与第一电感元件（L1，L2）的中点（P2）之间的电容（C11）。

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