| 
            
              US4358742A
              (en)
            
            *
            
           | 
          1980-03-07 | 
          1982-11-09 | 
          The Singer Company | 
          Transimpedance oscillator having high gain amplifier 
        | 
        
        
          | 
            
              US5053773A
              (en)
            
            *
            
           | 
          1989-03-15 | 
          1991-10-01 | 
          Rockwell International Corporation | 
          Doppler compensated airborne weather radar system 
        | 
        
        
          | 
            
              US5047734A
              (en)
            
            *
            
           | 
          1990-05-30 | 
          1991-09-10 | 
          New Sd, Inc. | 
          Linear crystal oscillator with amplitude control and crosstalk cancellation 
        | 
        
        
          | 
            
              US5185585A
              (en)
            
            *
            
           | 
          1990-05-30 | 
          1993-02-09 | 
          New Sd, Inc. | 
          Crystal oscillator and method with amplitude and phase control 
        | 
        
        
          | 
            
              US5487015A
              (en)
            
            *
            
           | 
          1993-09-13 | 
          1996-01-23 | 
          Rockwell International Corporation | 
          Self-oscillating driver circuit for a quartz resonator of an angular rate sensor 
        | 
        
        
          | 
            
              JPH08233581A
              (ja)
            
            *
            
           | 
          1994-12-28 | 
          1996-09-13 | 
          Yoshiro Tomikawa | 
          静電型変換手段の駆動装置 
        | 
        
        
          | 
            
              JPH08307199A
              (ja)
            
            *
            
           | 
          1995-01-11 | 
          1996-11-22 | 
          Yoshiro Tomikawa | 
          静電型変換手段の容量成分低減回路および静電型変換手段の駆動装置ならびに検出装置 
        | 
        
        
          | 
            
              US6768435B2
              (en)
            
            
            
           | 
          2001-11-13 | 
          2004-07-27 | 
          National University Of Singapore | 
          Bandpass sigma-delta modulator 
        | 
        
        
          | 
            
              US7095297B2
              (en)
            
            *
            
           | 
          2001-11-13 | 
          2006-08-22 | 
          National University Of Singapore | 
          Insulation of anti-resonance in resonators 
        | 
        
        
          | 
            
              US6900699B1
              (en)
            
            
            
           | 
          2001-11-14 | 
          2005-05-31 | 
          Berkana Wireless, Inc. | 
          Phase synchronous multiple LC tank oscillator 
        | 
        
        
          | 
            
              US7005930B1
              (en)
            
            *
            
           | 
          2001-11-14 | 
          2006-02-28 | 
          Berkana Wireless, Inc. | 
          Synchronously coupled oscillator 
        | 
        
        
          | 
            
              RU2251789C2
              (ru)
            
            *
            
           | 
          2003-05-20 | 
          2005-05-10 | 
          Федеральное государственное унитарное предприятие Омский научно-исследовательский институт приборостроения | 
          Кварцевый генератор 
        | 
        
        
          | 
            
              FR2883432B1
              (fr)
            
            *
            
           | 
          2005-03-18 | 
          2008-02-22 | 
          St Microelectronics Sa | 
          Circuit de filtrage accordable en frequence integrable, comportant un jeu de resonateurs baw 
        | 
        
        
          | 
            
              EP1911158A1
              (en)
            
            *
            
           | 
          2005-07-20 | 
          2008-04-16 | 
          The National University of Singapore | 
          Cancellation of anti-resonance in resonators 
        | 
        
        
          | 
            
              US7804374B1
              (en)
            
            *
            
           | 
          2007-02-15 | 
          2010-09-28 | 
          Discera, Inc. | 
          Feedthrough capacitance compensation for resonant devices 
        | 
        
        
          | 
            
              FR2920612B1
              (fr)
            
            *
            
           | 
          2007-09-03 | 
          2009-12-04 | 
          St Microelectronics Sa | 
          Circuit d'accord en frequence pour filtre treillis 
        | 
        
        
          | 
            
              US8576024B2
              (en)
            
            *
            
           | 
          2010-02-11 | 
          2013-11-05 | 
          Hollinworth Fund, L.L.C. | 
          Electro-acoustic filter 
        | 
        
        
          | 
            
              US9837984B2
              (en)
            
            *
            
           | 
          2014-12-24 | 
          2017-12-05 | 
          Qorvo Us, Inc. | 
          RF ladder filter with simplified acoustic RF resonator parallel capacitance compensation 
        | 
        
        
          | 
            
              US10333494B2
              (en)
            
            *
            
           | 
          2014-12-24 | 
          2019-06-25 | 
          Qorvo Us, Inc. | 
          Simplified acoustic RF resonator parallel capacitance compensation 
        | 
        
        
          | 
            
              US9847769B2
              (en)
            
            *
            
           | 
          2015-09-25 | 
          2017-12-19 | 
          Qorvo Us, Inc. | 
          Tunable compensation circuit for filter circuitry using acoustic resonators 
        | 
        
        
          | 
            
              US10097161B2
              (en)
            
            *
            
           | 
          2015-09-25 | 
          2018-10-09 | 
          Qorvo Us, Inc. | 
          Compensation circuit for acoustic resonators 
        | 
        
        
          | 
            
              US10243537B2
              (en)
            
            
            
           | 
          2016-01-12 | 
          2019-03-26 | 
          Qorvo Us, Inc. | 
          Compensation circuit for use with acoustic resonators to provide a bandstop 
        | 
        
        
          | 
            
              US10141644B2
              (en)
            
            
            
           | 
          2016-04-18 | 
          2018-11-27 | 
          Qorvo Us, Inc. | 
          Acoustic filter for antennas 
        | 
        
        
          | 
            
              US10581156B2
              (en)
            
            
            
           | 
          2016-05-04 | 
          2020-03-03 | 
          Qorvo Us, Inc. | 
          Compensation circuit to mitigate antenna-to-antenna coupling 
        | 
        
        
          | 
            
              US10581403B2
              (en)
            
            
            
           | 
          2016-07-11 | 
          2020-03-03 | 
          Qorvo Us, Inc. | 
          Device having a titanium-alloyed surface 
        | 
        
        
          | 
            
              US11050412B2
              (en)
            
            
            
           | 
          2016-09-09 | 
          2021-06-29 | 
          Qorvo Us, Inc. | 
          Acoustic filter using acoustic coupling 
        | 
        
        
          | 
            
              US10284174B2
              (en)
            
            
            
           | 
          2016-09-15 | 
          2019-05-07 | 
          Qorvo Us, Inc. | 
          Acoustic filter employing inductive coupling 
        | 
        
        
          | 
            
              US10367470B2
              (en)
            
            
            
           | 
          2016-10-19 | 
          2019-07-30 | 
          Qorvo Us, Inc. | 
          Wafer-level-packaged BAW devices with surface mount connection structures 
        | 
        
        
          | 
            
              US11165412B2
              (en)
            
            
            
           | 
          2017-01-30 | 
          2021-11-02 | 
          Qorvo Us, Inc. | 
          Zero-output coupled resonator filter and related radio frequency filter circuit 
        | 
        
        
          | 
            
              US11165413B2
              (en)
            
            
            
           | 
          2017-01-30 | 
          2021-11-02 | 
          Qorvo Us, Inc. | 
          Coupled resonator structure 
        | 
        
        
          | 
            
              US10873318B2
              (en)
            
            
            
           | 
          2017-06-08 | 
          2020-12-22 | 
          Qorvo Us, Inc. | 
          Filter circuits having acoustic wave resonators in a transversal configuration 
        | 
        
        
          | 
            
              US10361676B2
              (en)
            
            
            
           | 
          2017-09-29 | 
          2019-07-23 | 
          Qorvo Us, Inc. | 
          Baw filter structure with internal electrostatic shielding 
        | 
        
        
          | 
            
              US11152913B2
              (en)
            
            
            
           | 
          2018-03-28 | 
          2021-10-19 | 
          Qorvo Us, Inc. | 
          Bulk acoustic wave (BAW) resonator 
        | 
        
        
          | 
            
              US11146247B2
              (en)
            
            
            
           | 
          2019-07-25 | 
          2021-10-12 | 
          Qorvo Us, Inc. | 
          Stacked crystal filter structures 
        | 
        
        
          | 
            
              US11757430B2
              (en)
            
            
            
           | 
          2020-01-07 | 
          2023-09-12 | 
          Qorvo Us, Inc. | 
          Acoustic filter circuit for noise suppression outside resonance frequency 
        | 
        
        
          | 
            
              US11146246B2
              (en)
            
            
            
           | 
          2020-01-13 | 
          2021-10-12 | 
          Qorvo Us, Inc. | 
          Phase shift structures for acoustic resonators 
        | 
        
        
          | 
            
              US11146245B2
              (en)
            
            
            
           | 
          2020-01-13 | 
          2021-10-12 | 
          Qorvo Us, Inc. | 
          Mode suppression in acoustic resonators 
        | 
        
        
          | 
            
              US11632097B2
              (en)
            
            
            
           | 
          2020-11-04 | 
          2023-04-18 | 
          Qorvo Us, Inc. | 
          Coupled resonator filter device 
        | 
        
        
          | 
            
              US11575363B2
              (en)
            
            
            
           | 
          2021-01-19 | 
          2023-02-07 | 
          Qorvo Us, Inc. | 
          Hybrid bulk acoustic wave filter 
        | 
        
        
          | 
            
              US12170515B2
              (en)
            
            
            
           | 
          2022-01-31 | 
          2024-12-17 | 
          Qorvo Us, Inc. | 
          Reversed semilattice filter 
        | 
        
        
          | 
            
              US20230378936A1
              (en)
            
            *
            
           | 
          2022-05-17 | 
          2023-11-23 | 
          Qorvo Us, Inc. | 
          Bridge-t filter 
        |