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31. 发明公开

EP3235127A1 ACTIVE RC FILTERS 审中-公开
标题翻译：有源RC滤波器
公开(公告)号：EP3235127A1
公开(公告)日：2017-10-25
申请号：EP15813516.0
申请日：2015-12-14
申请人： Nordic Semiconductor ASA
发明人： CORBISHLEY, Phil
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F3/45188 , H03F3/45475 , H03F3/45632 , H03F2200/18 , H03F2200/234 , H03F2200/297 , H03F2200/453 , H03F2200/456 , H03F2200/555 , H03F2200/75 , H03F2203/21112 , H03F2203/21157 , H03F2203/45036 , H03F2203/45051 , H03F2203/45084 , H03F2203/45088 , H03F2203/45101 , H03F2203/45134 , H03F2203/45174 , H03F2203/45201 , H03F2203/45202 , H03F2203/45208 , H03F2203/45264 , H03F2203/45406 , H03F2203/45424 , H03F2203/45434 , H03F2203/45512 , H03F2203/45528 , H03F2203/45562 , H03F2203/45631 , H03F2203/45644 , H03F2203/45652 , H03F2203/45682 , H03F2203/45694 , H03F2203/45702
摘要： An operational amplifier comprising two cascaded differential stages and suitable for an RC filter An operational amplifier with a differential input and a differential output comprises two cascaded differential stages 4 and 6 of relatively low gain, a dominant pole compensation capacitor being placed between the output nodes of the second stage 6. The propagation delay and power consumption may be low. The output common-mode voltage of the first or second stage may be controlled by use of a local replica circuit adjusting the current sources 12, 30. The amplifier may be used in a leapfrog active RC filter (figure 2).
摘要翻译：一种运算放大器包括：包括第一差分对晶体管（8）的第一放大器级（4），布置为接收并放大差分输入信号（18,20），从而提供第一差分输出信号（22,24）; 以及第二放大器级（6），其包括布置成接收并放大第一差分输出信号（22,24）从而提供第二差分输出信号（38,40）的第二差分晶体管对（26,28）。

32. 发明授权

EP2819306B1 Instrumentation amplifier and signal amplification method 有权
标题翻译：仪表放大器和信号放大方法。
公开(公告)号：EP2819306B1
公开(公告)日：2016-04-06
申请号：EP13173913.8
申请日：2013-06-27
申请人： IMEC
发明人： Van Helleputte, Nick , Yazicioglu, Refet Firat
IPC分类号： H03F3/45 , H03F1/34
CPC分类号： H03F1/34 , H03F3/45 , H03F3/45932 , H03F3/45941 , H03F3/68 , H03F2200/261 , H03F2203/45084 , H03F2203/45114 , H03F2203/45116

33. 发明授权

US11881826B2 Audio amplifier circuitry 有权
公开(公告)号：US11881826B2
公开(公告)日：2024-01-23
申请号：US17142904
申请日：2021-01-06
申请人： Cirrus Logic International Semiconductor Ltd.
发明人： David P. Singleton , Andrew J. Howlett , John B. Bowlerwell
IPC分类号： H03F3/45
CPC分类号： H03F3/45659 , H03F3/45179 , H03F3/45645 , H03F2200/03 , H03F2203/45084 , H03F2203/45402 , H03F2203/45592
摘要： The present disclosure relates to circuitry comprising audio amplifier circuitry for receiving an audio signal to be amplified; and first and second output nodes for outputting first and second differential output signals. The circuitry further comprises common mode buffer circuitry configured to receive a common mode voltage and to selectively output the common mode voltage to the first and second output nodes.

34. 发明申请

US20170346456A1 ACTIVE RC FILTERS 审中-公开
公开(公告)号：US20170346456A1
公开(公告)日：2017-11-30
申请号：US15536504
申请日：2015-12-14
申请人： Nordic Semiconductor ASA
发明人： Phil Corbishley
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F3/45188 , H03F3/45475 , H03F3/45632 , H03F2200/18 , H03F2200/234 , H03F2200/297 , H03F2200/453 , H03F2200/456 , H03F2200/555 , H03F2200/75 , H03F2203/21112 , H03F2203/21157 , H03F2203/45036 , H03F2203/45051 , H03F2203/45084 , H03F2203/45088 , H03F2203/45101 , H03F2203/45134 , H03F2203/45174 , H03F2203/45201 , H03F2203/45202 , H03F2203/45208 , H03F2203/45264 , H03F2203/45406 , H03F2203/45424 , H03F2203/45434 , H03F2203/45512 , H03F2203/45528 , H03F2203/45562 , H03F2203/45631 , H03F2203/45644 , H03F2203/45652 , H03F2203/45682 , H03F2203/45694 , H03F2203/45702
摘要： An operational amplifier comprises: a first amplifier stage 4 comprising a first differential pair of transistors 8, 10 arranged to receive and amplify a differential input signal 18, 20 thereby providing a first differential output signal 22, 24; and a second amplifier stage 6 comprising a second differential pair of transistors 26, 28 arranged to receive and amplify the first differential output signal 22, 24 thereby providing a second differential output signal 38, 40.

35. 发明授权

US09800219B2 Apparatus for performing capacitor amplification in an electronic device 有权
公开(公告)号：US09800219B2
公开(公告)日：2017-10-24
申请号：US15147902
申请日：2016-05-05
申请人： MEDIATEK INC.
发明人： Huai-Te Wang
IPC分类号： H03F1/34 , H03F3/50
CPC分类号： H03F3/505 , H03F1/342 , H03F2200/129 , H03F2200/144 , H03F2200/21 , H03F2200/303 , H03F2200/42 , H03F2200/69 , H03F2203/45061 , H03F2203/45084 , H03F2203/5024
摘要： An apparatus for performing capacitor amplification in an electronic device may include a first resistor and a second resistor that are connected in series and coupled between a set of input terminals of a receiver in the electronic device, a common mode capacitor having a first terminal coupled to a common mode terminal and having a second terminal, and an alternating current (AC)-coupled amplifier that is coupled between the common mode terminal and the second terminal of the common mode capacitor. The first resistor and the second resistor may be arranged for obtaining a common mode voltage at the common mode terminal between the first resistor and the second resistor. In addition, the common mode capacitor may be arranged for reducing a common mode return loss. Additionally, the AC-coupled amplifier may be arranged for performing capacitor amplification for the common mode capacitor.

36. 发明授权

US09484871B1 Complex bandpass filter having a transfer function with two poles 有权
标题翻译：具有两极传递函数的复带通滤波器
公开(公告)号：US09484871B1
公开(公告)日：2016-11-01
申请号：US14710092
申请日：2015-05-12
申请人： Marvell International Ltd.
发明人： Shan He , Randy Tsang
IPC分类号： H03K5/00 , H03F3/45 , H03H11/04
CPC分类号： H03F3/45475 , H03F2203/45084 , H03F2203/45526 , H03H11/126 , H03H2011/0494
摘要： In some implementations, a filter circuit includes a first signal path that includes a first amplifier and a second signal path that includes a second amplifier. The first signal path is configured to receive a first component of a complex signal and provide a filtered version of the first component of the complex signal. The second signal path is configured to receive a second component of the complex signal and provide a filtered version of the second component of the complex signal. The first signal path before the first amplifier is coupled to the second signal path before the second amplifier. The first signal path after the first amplifier is coupled to the second signal path before the second amplifier. The second signal path after the second amplifier is coupled to the first signal path before the first amplifier.
摘要翻译：在一些实现中，滤波器电路包括第一信号路径，其包括第一放大器和包括第二放大器的第二信号路径。第一信号路径被配置为接收复信号的第一分量并且提供复信号的第一分量的滤波版本。第二信号路径被配置为接收复信号的第二分量并且提供复信号的第二分量的滤波版本。第一放大器之前的第一信号路径在第二放大器之前耦合到第二信号路径。第一放大器之后的第一信号路径在第二放大器之前耦合到第二信号路径。第二放大器之后的第二信号路径在第一放大器之前耦合到第一信号路径。

37. 发明申请

US20160241211A1 AMPLIFIER WITH COMMON-MODE FILTER 有权
标题翻译：具有通用滤波器的放大器
公开(公告)号：US20160241211A1
公开(公告)日：2016-08-18
申请号：US14620823
申请日：2015-02-12
申请人： QUALCOMM Incorporated
发明人： Muhammad Hassan , Bhushan Shanti Asuri , Apsara Ravish Suvarna , Youngchang Yoon
IPC分类号： H03F3/45 , H03F1/22
CPC分类号： H03F3/45632 , H03F1/223 , H03F3/245 , H03F3/45188 , H03F2200/09 , H03F2200/378 , H03F2203/45024 , H03F2203/45082 , H03F2203/45084 , H03F2203/45204 , H03F2203/45481 , H03F2203/45631 , H03F2203/45638 , H03F2203/45706 , H03F2203/45731
摘要： A differential amplifier having a tunable filter is disclosed. The tunable filter may attenuate some common-mode signals while not affecting amplification of differential signals. The tunable filter may include a resonant circuit to select frequencies of common-mode signals to attenuate. The resonant circuit may include a variable capacitor series-coupled to an inductor. A resonant frequency of the resonant circuit may be determined, in part, by a capacitance value of the variable capacitor.
摘要翻译：公开了一种具有可调谐滤波器的差分放大器。可调谐滤波器可以衰减一些共模信号，而不影响差分信号的放大。可调滤波器可以包括谐振电路，以选择共模信号的频率来衰减。谐振电路可以包括串联耦合到电感器的可变电容器。谐振电路的谐振频率可以部分地由可变电容器的电容值确定。

38. 发明申请

US20150280695A1 SYSTEMS AND METHODS FOR COMMON MODE LEVEL SHIFTING 有权
标题翻译：用于通用模式电平转换的系统和方法
公开(公告)号：US20150280695A1
公开(公告)日：2015-10-01
申请号：US14228049
申请日：2014-03-27
申请人： QUALCOMM Incorporated
发明人： Miao Li , Xiaohua Kong , Zhi Zhu , Jie Xu
IPC分类号： H03K3/356
CPC分类号： H03K3/35613 , H03F3/45475 , H03F2200/291 , H03F2203/45081 , H03F2203/45084
摘要： A common mode voltage level shifting circuit including: input nodes configured to receive a differential signal with a first common mode voltage, a pair of shunt capacitors coupled between the input nodes and a corresponding pair of output nodes, a threshold voltage circuit, including the output nodes, coupled to the differential signal though the shunt capacitors, the threshold voltage circuit configured to provide a second common mode voltage for the differential signal at the output nodes, and current sources that are controlled according to a level of the first common mode voltage, the current sources coupled to the output nodes to effect the second common mode voltage.
摘要翻译：一种共模电压电平移位电路，包括：被配置为接收具有第一共模电压的差分信号的输入节点，耦合在输入节点之间的一对并联电容器和相应的一对输出节点，包括输出端的阈值电压电路节点，其通过并联电容器耦合到差分信号，阈值电压电路被配置为为输出节点处的差分信号提供第二共模电压，以及根据第一共模电压的电平来控制的电流源，电流源耦合到输出节点以实现第二共模电压。

39. 发明申请

WO2016130295A1 AMPLIFIER WITH COMMON-MODE FILTER 审中-公开
标题翻译：具有通用滤波器的放大器
公开(公告)号：WO2016130295A1
公开(公告)日：2016-08-18
申请号：PCT/US2016/014186
申请日：2016-01-20
申请人： QUALCOMM INCORPORATED
发明人： HASSAN, Muhammad , ASURI, Bhushan Shanti , RAVISH SUVARNA, Apsara , YOON, Youngchang
IPC分类号： H03F3/45 , H03F3/24 , H04B1/04
CPC分类号： H03F3/45632 , H03F1/223 , H03F3/245 , H03F3/45188 , H03F2200/09 , H03F2200/378 , H03F2203/45024 , H03F2203/45082 , H03F2203/45084 , H03F2203/45204 , H03F2203/45481 , H03F2203/45631 , H03F2203/45638 , H03F2203/45706 , H03F2203/45731
摘要： A differential amplifier having a tunable filter is disclosed. The tunable filter may attenuate some common-mode signals while not affecting amplification of differential signals. The tunable filter may include a resonant circuit to select frequencies of common-mode signals to attenuate. The resonant circuit may include a variable capacitor series-coupled to an inductor. A resonant frequency of the resonant circuit may be determined, in part, by a capacitance value of the variable capacitor.
摘要翻译：公开了一种具有可调谐滤波器的差分放大器。可调谐滤波器可以衰减一些共模信号，而不影响差分信号的放大。可调滤波器可以包括谐振电路，以选择共模信号的频率来衰减。谐振电路可以包括串联耦合到电感器的可变电容器。谐振电路的谐振频率可以部分地由可变电容器的电容值确定。

40. 发明申请

WO2007016454A3 LIGHT-EMITTING ORGANIC MATERIALS 审中-公开
标题翻译：发光有机材料
公开(公告)号：WO2007016454A3
公开(公告)日：2009-04-30
申请号：PCT/US2006029673
申请日：2006-07-28
申请人： UNIV ROCHESTER , CHEN SHAW H , CHEN ANDREW CHIEN-AN , WALLACE JASON U , ZENG LICHANG
发明人： CHEN SHAW H , CHEN ANDREW CHIEN-AN , WALLACE JASON U , ZENG LICHANG
IPC分类号： C09K11/06 , C08G61/10 , H01L51/54
CPC分类号： C09K11/06 , C08G61/02 , C08G61/124 , C08G61/126 , C09K2211/1416 , C09K2211/1425 , C09K2211/1433 , C09K2211/145 , C09K2211/1458 , C09K2211/1466 , C09K2211/1483 , C09K2211/1491 , C09K2211/186 , H01L51/0039 , H01L51/0052 , H01L51/0053 , H01L51/0054 , H01L51/0056 , H01L51/0059 , H01L51/0067 , H01L51/0068 , H01L51/0071 , H01L51/0081 , H01L51/0095 , H01L51/5293 , H03F1/42 , H03F3/45183 , H03F3/45632 , H03F2200/36 , H03F2203/45084 , H03F2203/45118 , H03F2203/45296 , H03F2203/45318 , H03F2203/45512 , H03F2203/45554 , H03F2203/45638 , H05B33/14
摘要： Organic light-emitting materials comprise a core moiety to which one or more conjugated oligomers are attached through one or more flexible linker or spacer groups. The core moiety is a non-conducting core, a hole-conducting core or an electron-conducting core. The conjugated oligomers can have any number of monomeric units linked together. The materials can be used in organic light-emitting devices (OLEDs) such as monitors, displays, LCDs and the like.
摘要翻译：有机发光材料包含核部分，一个或多个共轭低聚物通过一个或多个柔性接头或间隔基团连接到该部分上。芯部分是非导电芯，导电芯或导电芯。共轭低聚物可以具有连接在一起的任意数量的单体单元。这些材料可以用于诸如监视器，显示器，LCD等的有机发光器件（OLED）中。

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