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Class Information
Number: 330/135
Name: Amplifiers > With control of power supply or bias voltage > With control of input electrode or gain control electrode bias > Amplitude limiting or bias voltage
Description: Subject matter including means to limit the maximum amplitude of the bias control voltage.










Patents under this class:

Patent Number Title Of Patent Date Issued
8624670 Method and apparatus for improving digital pre-distortion performance Jan. 7, 2014
8466755 Polar modulation apparatus and communication device Jun. 18, 2013
8432219 Amplitude control system and method for communication systems Apr. 30, 2013
8422698 Signal processing apparatus and method, and program Apr. 16, 2013
8145149 Operating a voltage regulator at a switching frequency selected to reduce spurious signals Mar. 27, 2012
8036402 Distortion compensation Oct. 11, 2011
7840193 Transmitter and communication apparatus Nov. 23, 2010
7734263 Transmission circuit and communication device Jun. 8, 2010
7565283 Method and system for controlling potentially harmful signals in a signal arranged to convey speech Jul. 21, 2009
7499502 Amplifier, information communication apparatus and amplification method Mar. 3, 2009
7446613 Power amplifier input structure having a differential output Nov. 4, 2008
7386075 Apparatus for and method of optimizing the performance of a radio frequency receiver in the presence of interference Jun. 10, 2008
7372327 Input structure for a power amplifier and associated methods May. 13, 2008
7161427 Input structure for a power amplifier and associated methods Jan. 9, 2007
7148745 Sleep mode recovery Dec. 12, 2006
7113045 Power amplifier input structure having a differential output Sep. 26, 2006
7038538 Folded cascode high voltage operational amplifier with class AB source follower output stage May. 2, 2006
6998915 Apparatus for switching matching circuit in mobile communication terminal Feb. 14, 2006
6985039 Method and apparatus for providing a stable power output of power amplifiers, operating under unstable supply voltage conditions Jan. 10, 2006
6973399 Method and circuit for correcting periodic signals of an incremental position measuring system Dec. 6, 2005
6954105 Disk drive and error amplifier therefor and related methods Oct. 11, 2005
6477358 Method for controlling power gain Nov. 5, 2002
5703910 Digital radio receiver Dec. 30, 1997
5675611 Output power control and envelope shaping for a pulsed transmitter Oct. 7, 1997
5608756 Device for identifying traffic on a paired cable Mar. 4, 1997
5606284 Automatic gain control device for producing constant amplitude output signal Feb. 25, 1997
5349304 Operational amplifier having multiple positive inputs Sep. 20, 1994
5341114 Integrated limiter and amplifying devices Aug. 23, 1994
5334945 Power control circuit Aug. 2, 1994
5260973 Device operable with an excellent spectrum suppression Nov. 9, 1993
4747159 RF modulator May. 24, 1988
4598255 Power amplifier apparatus Jul. 1, 1986
4574248 RF Power amplifier for use with VHF transceivers Mar. 4, 1986
4562407 Automatic regulation of the output power of an amplifier Dec. 31, 1985
4243944 Circuit for automatic dynamic compression or expansion Jan. 6, 1981
4112384 Controlled recovery automatic gain control amplifier Sep. 5, 1978











 
 
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