H03G 3/22

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
2020/0204,131 VARIABLE GAIN AMPLIFIERS FOR COMMUNICATION SYSTEMSMar 05, 20Jun 25, 20Not available
2019/0207,576 VARIABLE GAIN AMPLIFIERS FOR COMMUNICATION SYSTEMSMar 06, 19Jul 04, 19Not available
2018/0294,787 AUDIO OUTPUT CIRCUIT AND AUDIO DEVICEFeb 20, 17Oct 11, 18Shenzhen China Star Optoelectronics Technology Co. Ltd.
2015/0011,171 Electronic circuit arrangement for receiving low frequency electromagnetic waves with an adjustable attenuator elementJul 28, 14Jan 08, 15MAXIM INTEGRATED PRODUCTS, INC.
2014/0055,202 Amplifier Bias ControlMar 01, 12Feb 27, 14Not available
2009/0029,661 Amplifier with a Quadrature Amplitude Modulation (QAM) Modulated and a Continuous Wave Automatic Gain Control (AGC) CircuitJul 26, 07Jan 29, 09CISCO TECHNOLOGY, INC.
2004/0100,324 DYNAMIC SENSING REGULATORNov 21, 02May 27, 04AXL MUSICAL INSTRUMENTS, CO. LTD.