H03F 13 - Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier

Patents for H03F 13 - Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier (58)
04/2014
04/03/2014	WO2014048758A1 Magnetic logic unit (mlu) cell and amplifier having a linear magnetic signal
12/2013
12/25/2013	EP2509217B1 Method for amplifying an RF signal and tuneable RF power amplifier device
04/2013
04/04/2013	US20130083947 Audio amplifier
10/2012
10/10/2012	EP2509217A1 Method for amplifying an RF signal and tuneable RF power amplifier device
07/2012
07/11/2012	CN102577108A RF power amplifier with spectrally grouped nanosized switches
04/2012
04/04/2012	EP2437393A1 Power control for an RF power amplifier with spectrally grouped nanosized switches
10/2011
10/04/2011	US8032336 Distortion cancellation using adaptive linearization
04/2011
04/21/2011	WO2011045193A1 Rf power amplifier with spectrally grouped nanosized switches
04/20/2011	EP2312750A1 A method for transmission of signals from a transmitting device to a receiving device comprising an amplifying unit, a transmitting device and a receiving device therefor
04/20/2011	EP2312749A1 RF power amplifier with spectrally grouped nanosized switches
12/2010
12/08/2010	CN1759633B Transducer assembly with modifiable buffer circuit and method for adjusting thereof
08/2010
08/31/2010	US7788067 Means and methods for signal validation for sizing spherical objects
08/24/2010	US7783958 Broadband satellite system for the simultaneous reception of multiple channels using shared iterative decoder
08/2008
08/19/2008	US7414466 Apparatus for reducing offset voltage drifts in a charge amplifier circuit
11/2007
11/28/2007	EP1433185B1 Interface module for a controlled component
07/2006
07/04/2006	US7072478 Microphone preamplifier
05/2006
05/23/2006	US7049729 Amplifier converting charge signal
04/2006
04/12/2006	CN1759633A Transducer assembly with modifiable buffer circuit and method for adjusting thereof
12/2005
12/07/2005	EP1602260A2 Transducer assembly with modifiable buffer circuit and method for adjusting thereof
09/2005
09/06/2005	US6940347 Amplifier
07/2005
07/20/2005	EP0810726B1 Elastic surface wave functional device and electronic circuit using the element
03/2005
03/10/2005	WO2004082324A3 Transducer asembly with modifiable buffer circuit and method for adjusting thereof
09/2004
09/23/2004	WO2004082324A2 Transducer asembly with modifiable buffer circuit and method for adjusting thereof
09/23/2004	US20040183398 Amplifier for converting charge signal
09/22/2004	EP1460402A2 Amplifier for converting charge signal
09/16/2004	US20040179703 Modifiable buffer circuit for miniature microphone applications and method of adjusting thereof
09/16/2004	US20040179702 Transducer assembly with modifiable buffer circuit and method for adjusting thereof
08/2004
08/26/2004	US20040164799 Amplifier
06/2004
06/30/2004	EP1433185A1 Interface module for a controlled component
06/03/2004	US20040104769 Amplifier
01/2004
01/28/2004	EP1384318A2 Amplifier
11/2003
11/13/2003	WO2002091567A3 Amplifier
05/2003
05/01/2003	WO2003036653A1 Interface module for a controlled component
04/2003
04/24/2003	US20030076967 Microphone preamplifier
11/2002
11/14/2002	WO2002091567A2 Amplifier
03/2001
03/06/2001	US6198197 Surface acoustic wave element and electronic circuit using the same
04/2000
04/04/2000	US6046524 Elastic surface wave functional device and electronic circuit using the element
12/1997
12/03/1997	EP0810726A1 Elastic surface wave functional device and electronic circuit using the element
08/1995
08/08/1995	US5440189 Surface acoustic wave device
06/1993
06/22/1993	US5221870 Diamond substrate with piezoelectric layer, semiconductor film , carbon film, electrodes and transducers
05/1990
05/22/1990	US4928069 Amplifying surface wave receiver
04/1989
04/05/1989	EP0309713A2 Amplifying surface waves receiver
03/1989
03/14/1989	US4812780 Broadband differential amplifier
02/1989
02/07/1989	USRE32859 Acoustic surface wave devices
11/1988
11/17/1988	DE3715931A1 Acoustically closed amplifier
11/1987
11/11/1987	EP0244973A2 Broadband differential amplifier
09/1986
09/02/1986	US4610031 Receiver including surface acoustic wave amplifier
09/1984
09/11/1984	US4471255 Surface acoustic wave parametric device
01/1984
01/17/1984	US4426737 Circuit for generating a pumping signal for a surface elastic wave parametric device in a receiver
01/17/1984	US4426732 Receiver having a surface elastic wave high frequency amplifier with a frequency-controlled pump oscillator
12/1982
12/21/1982	US4365216 Surface-acoustic-wave device
11/1982
11/02/1982	US4357553 Surface-acoustic-wave device
09/1982
09/07/1982	US4348650 Surface-acoustic-wave parametric device
06/1982
06/08/1982	US4334167 Elastic surface wave device
03/1981
03/03/1981	US4254388 Frequency selector apparatus
11/1980
11/11/1980	US4233530 Elastic surface wave device
05/1978
05/09/1978	US4088969 Tapped surface acoustic wave delay line
11/1977
11/15/1977	US4058745 Controlled gap surface acoustic wave device