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21. 发明申请

WO2003094349A1 PROCEDE ET DISPOSITIFS POUR LE TRAITEMENT D'UN SIGNAL RADIO A CONVERSION ANALOGIQUE/NUMERIQUE DIRECTE 审中-公开
标题翻译：用于处理具有直接模拟到数字转换的无线电信号的方法和装置
公开(公告)号：WO2003094349A1
公开(公告)日：2003-11-13
申请号：PCT/FR2003/001357
申请日：2003-04-30
申请人： TELEDIFFUSION DE FRANCE , LANOISELEE, Marc , CALLONNEC, Denis , RENOU, Patrick
发明人： LANOISELEE, Marc , CALLONNEC, Denis , RENOU, Patrick
IPC分类号： H03J3/08
CPC分类号： H03J7/04 , H03J3/08 , H03J3/26
摘要： L'invention concerne notamment un procédé de commande d'un filtre analogique (44, 46) destiné à être appliqué à un signal radio en vue de la conversion de ce dernier en un signal numérique devant être démodulé, la démodulation incluant une étape de transposition fréquentielle du signal à l'aide d'un oscillateur numérique (52). On asservit le filtre analogique à l'oscillateur numérique pour lui imposer la fréquence centrale.
摘要翻译：本发明尤其涉及一种控制模拟滤波器（44,46）的方法，该模拟滤波器被设计为应用于将其转换成要被调制的数字信号的无线电信号，该解调包括使用数字信号的信号的频率转换步骤振荡器（52）。它包括将所述模拟滤波器锁定到数字振荡器以对其施加中心频率。

22. 发明申请

WO2003065580A1 TELEVISION TUNER AND PRINTED CIRCUIT BOARD USED THEREIN 审中-公开
标题翻译：电视调谐器和印刷电路板
公开(公告)号：WO2003065580A1
公开(公告)日：2003-08-07
申请号：PCT/IB2003/000109
申请日：2003-01-17
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , TOH, Yeow, T. , PANG, Eng, N.
发明人： TOH, Yeow, T. , PANG, Eng, N.
IPC分类号： H03J3/08
CPC分类号： H03J3/26 , H03J3/08 , H03J2200/32 , H05K1/0286
摘要： A television tuner comprises a tunable bandpass filter (4) for selecting a desired input channel with an image canceling capacitor (C8) for rejecting the image frequency of the desired input channel. In order to avoid the necessity of different printed circuit boards for NTSC-type television tuners and for PAL-type television tuners, the image canceling capacitor (C8) is made of first (8) and second (10) traces of the printed circuit board while a third trace (13) is connected to the second trace (10) by a jumper (15) only in case of a PAL-type tuner.
摘要翻译：电视调谐器包括可调谐带通滤波器（4），用于通过图像消除电容器（C8）选择期望的输入通道，用于拒绝所需输入通道的图像频率。为了避免NTSC型电视调谐器和PAL型电视调谐器的不同印刷电路板的需要，图像消除电容器（C8）由印刷电路板的第一（8）和第二（10）迹线构成而第三迹线（13）仅在PAL型调谐器的情况下通过跳线（15）连接到第二迹线（10）。

23. 发明申请

WO01084709A1 BANDSWITICHABLE DOUBLE TUNED CIRCUIT 审中-公开
标题翻译： BANDSWITICHABLE双重调谐电路
公开(公告)号：WO01084709A1
公开(公告)日：2001-11-08
申请号：PCT/GB2001/001897
申请日：2001-05-01
IPC分类号： H03J5/24
CPC分类号： H03J3/26 , H03J5/244
摘要： A band switching double-tuned circuit for receiving analogue or digital television broadcasts is discribed. It is adapted to receive VHF low band and high band signals and comprises inductive coupling means for each band switching diode (D3, D4) connected at the input and output side and in series with a high band inductor connected to ground. The junction of each switching diode (D3, D4) and high band tuning inductor (L1, L4) are connected to a high band coupling inductor (L6) in order to inductively couple the input to the output. For low band RF response (L2, L5) are aligned, whereas for high band (L1) and (L4) are aligned. (L1) and (L4) can be physically aligned for high band, (by operator manipulation) without having to consider the image frequency. To set the correct image frequency for high band reception, inductor (L6) must be correctly aligned for optimum image rejection.
摘要翻译：描述了用于接收模拟或数字电视广播的频带切换双重调谐电路。它适用于接收VHF低频带和高频带信号，并且包括连接在输入和输出侧并与连接到地的高频带电感串联的每个频带开关二极管（D3，D4）的电感耦合装置。每个开关二极管（D3，D4）和高频带调谐电感（L1，L4）的结点连接到高频带耦合电感（L6），以便将输入电感耦合到输出。对于低频带RF响应（L2，L5）对齐，而对于高频带（L1）和（L4）被对准。（L1）和（L4）可以物理上对准高频带，（通过操作员操纵），而不必考虑图像频率。要设置高频段接收的正确图像频率，电感（L6）必须正确对齐，以获得最佳的图像抑制。

24. 发明申请

WO2006066000A1 TRACKING FILTER FOR TUNER 审中-公开
标题翻译：跟踪过滤器调谐器
公开(公告)号：WO2006066000A1
公开(公告)日：2006-06-22
申请号：PCT/US2005/045428
申请日：2005-12-14
申请人： RF MAGIC, INC. , SHAH, Peter , YOUN, YongSik , ALDERTON, Martin
发明人： SHAH, Peter , YOUN, YongSik , ALDERTON, Martin
IPC分类号： H03J3/26
CPC分类号： H03J3/20 , H03J3/26 , H03J2200/07 , H03J2200/10 , H03J2200/28 , H03J2200/29 , H03J2200/32
摘要： A tuner uses a bank of tracking filters to preselect a channel to be received. Each tracking filter covers a range of frequencies. The tracking filters are tunable in frequency using switched capacitors and are tunable in gain by using switched resistors. The switched resistors can be controlled by an automatic gain control circuit that monitors the selected signal and adjust the tracking filter gain to achieve a desired signal level. A switch directs the received signal or signal from a test tone generator into the tracking filters. The test tone, generated by a frequency agile circuit, can be used to calibrate the filters, both in frequency and gain.
摘要翻译：调谐器使用一组跟踪滤波器来预选要接收的频道。每个跟踪滤波器覆盖一定范围的频率。跟踪滤波器在频率上是可调谐的，使用开关电容器，并且通过使用开关电阻可调谐增益。开关电阻可以由自动增益控制电路控制，该电路监视所选择的信号并调整跟踪滤波器增益以实现期望的信号电平。开关将来自测试音发生器的接收信号或信号引导到跟踪滤波器中。由频率敏捷电路产生的测试音可用于校准频率和增益的滤波器。

25. 发明申请

WO00011783A1 TUNED BAND-PASS CIRCUIT 审中-公开
标题翻译：调谐带通电路
公开(公告)号：WO00011783A1
公开(公告)日：2000-03-02
申请号：PCT/EP1999/006164
申请日：1999-08-23
IPC分类号： H03J5/24
CPC分类号： H03J3/26 , H03J3/185 , H03J5/246
摘要： In a tunable band-pass circuit, comprising a double-tuned tank circuit having a first terminal (T1) coupled (C1) to an input terminal (I) and a second terminal (T2) coupled (Lo) to an output terminal (O), and an image trap capacitance (Ci) coupled between the input terminal (I) and said second terminal (T2), a feedback capacitance (C+), an image feedback capacitance (C+) is coupled between the output terminal (O) and the input terminal (I) to improve image rejection.
摘要翻译：在可调谐带通电路中，包括双调谐电路，其具有与输入端（I）耦合（C1）的第一端（T1）和耦合（Lo）到输出端（O）的第二端（T2））和耦合在输入端（I）和所述第二端（T2）之间的图像陷波电容（Ci），反馈电容（C +），图像反馈电容（C +）耦合在输出端（O）和输入端（I），以改善图像抑制。

26. 发明授权

US09166564B2 Wideband analog bandpass filter 有权
标题翻译：宽带模拟带通滤波器
公开(公告)号：US09166564B2
公开(公告)日：2015-10-20
申请号：US12931487
申请日：2011-02-01
申请人： Michael Koechlin
发明人： Michael Koechlin
IPC分类号： H03H7/01 , H03H7/12 , H03J3/26
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。

27. 发明申请

US20140128015A1 Direct Digital Conversion Tuner 审中-公开
标题翻译：直接数字转换调谐器
公开(公告)号：US20140128015A1
公开(公告)日：2014-05-08
申请号：US14153799
申请日：2014-01-13
申请人： Broadcom Corporation
发明人： Leonard DAUPHINEE
IPC分类号： H03J3/26 , H03G3/30
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 lose 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 rate, 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丢失噪声放大器的可选的动态可配置带通滤波器。可选过滤器被配置为传递所选频道的频带。调谐器还包括耦合到LNA或可选的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的工作频率大于采样信号频率的两倍。 ADC以奈奎斯特速率直接对所选通道的频谱进行采样，从而避免了常规调谐器所呈现的图像问题。

28. 发明申请

US20110187448A1 Wideband analog bandpass filter 有权
标题翻译：宽带模拟带通滤波器
公开(公告)号：US20110187448A1
公开(公告)日：2011-08-04
申请号：US12931487
申请日：2011-02-01
申请人： Michael Koechlin
发明人： Michael Koechlin
IPC分类号： H04B1/10 , H03H7/12
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。

29. 发明授权

US07852177B2 Double-tuning circuit of television tuner 失效
标题翻译：电视调谐器的双调谐电路
公开(公告)号：US07852177B2
公开(公告)日：2010-12-14
申请号：US12258211
申请日：2008-10-24
申请人： Masaki Yamamoto
发明人： Masaki Yamamoto
IPC分类号： H03J3/02
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 and a first variable capacitive element connected in parallel and a secondary tuning circuit having a second inductor and a second variable capacitive element connected in parallel, a fixed part of a copper-foil pattern is connected to a connection point at which the double-tuning circuit is connected to an input terminal of a frequency mixing circuit, and a tip part of the copper-foil pattern extends to near the first inductor, whereby a trap circuit for attenuating an image frequency component is formed. A pattern is formed between a ground-side terminal of the first inductor and the ground, and a capacitor is connected between a connection point at which the first inductor is connected to one terminal of the pattern and a ground-side terminal of the second variable capacitive element.
摘要翻译：在包括具有并联连接的第一电感器和第一可变电容元件的初级调谐电路和具有并联连接的第二电感器和第二可变电容元件的二次调谐电路的双调谐电路中，铜 - 箔片图案连接到双调谐电路连接到混频电路的输入端子的连接点，并且铜箔图案的末端部分延伸到第一电感器附近，由此形成用于衰减的陷波电路形成图像频率分量。在第一电感器的接地侧端子和地之间形成图案，并且电容器连接在第一电感器连接到图案的一个端子的连接点和第二变量的接地侧端子之间电容元件

30. 发明授权

US07522901B2 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：US07522901B2
公开(公告)日：2009-04-21
申请号：US10952168
申请日：2004-09-29
申请人： Leonard Dauphinee
发明人： Leonard Dauphinee
IPC分类号： H04B1/26 , H04Q7/20
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的动态可配置带通滤波器。可选过滤器被配置为传递所选频道的频带。调谐器还包括耦合到LNA或可选的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的工作频率大于采样信号频率的两倍。 ADC直接以奈奎斯特频率对所选通道的频谱进行采样，从而避免了常规调谐器所呈现的图像问题。

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