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Browse by Category: Main > Electrical & Energy
Class Information
Number: 330/254
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including differential amplifier > Having gain control means
Description: Subject matter including circuitry which controls the amplification of the applied signal.










Patents under this class:

Patent Number Title Of Patent Date Issued
8710926 Radio frequency power delivery system Apr. 29, 2014
8693676 Power efficiency of a line driver Apr. 8, 2014
8692180 Readout circuit for touch sensor Apr. 8, 2014
8674743 Asymmetric correction circuit with negative resistance Mar. 18, 2014
8665026 Gain control system Mar. 4, 2014
8664932 Voltage generating circuit, device including the same, and method of generating voltage Mar. 4, 2014
8660221 Fast and robust AGC apparatus and method using the same Feb. 25, 2014
8653433 Transimpedance amplifier and PON system Feb. 18, 2014
8649532 Electronic volume circuit Feb. 11, 2014
8643437 Multi-input differential amplifier with dynamic transconductance compensation Feb. 4, 2014
8638249 System and method for high input capacitive signal amplifier Jan. 28, 2014
8629720 Driving method for obtaining a gain linear variation of a transconductance amplifier and corresponding driving circuit Jan. 14, 2014
8626098 Automatic gain control with programmable attack and decay times Jan. 7, 2014
8618882 Variable gain amplifier Dec. 31, 2013
8593221 Methods and circuits for common mode stability and bandwidth broadening in transistor amplifiers Nov. 26, 2013
8593207 Limiting amplifiers Nov. 26, 2013
8587372 Multi-input differential amplifier and light emitting element driving device Nov. 19, 2013
8581661 Audio programmable gain amplifier with automatic reconfiguration Nov. 12, 2013
8576006 Wideband variable gain amplifier Nov. 5, 2013
8570139 Variable resister having resistance varying geometrically ratio and control method thereof Oct. 29, 2013
8553815 Gain control for a receiver in a multi-carrier communication system Oct. 8, 2013
8547446 Fully-differential amplifier, photoelectric conversion apparatus including fully-differential amplifier, and image-pickup system Oct. 1, 2013
8536945 Differential output stage Sep. 17, 2013
8531241 System and method for process, voltage, temperature (PVT) stable differential amplifier transfer function Sep. 10, 2013
8531177 Timing detection device Sep. 10, 2013
8525586 Gain stage with DC offset compensation and method thereof Sep. 3, 2013
8509290 Closed-loop digital power control for a wireless transmitter Aug. 13, 2013
8497735 Vector modulator having attenuators with continuous input steering Jul. 30, 2013
8493149 Amplifier circuit with variable tuning precision Jul. 23, 2013
8493051 Fast-settling precision voltage follower circuit and method Jul. 23, 2013
8489052 Variable gain amplifier for low voltage applications Jul. 16, 2013
8476973 Switch device and layout design method for switch device Jul. 2, 2013
8471636 Differential pair with constant offset Jun. 25, 2013
8456236 Multiple input variable gain amplifier Jun. 4, 2013
8456173 Signal acquisition system having probe cable termination in a signal processing instrument Jun. 4, 2013
8446940 Adaptive receive-side equalization May. 21, 2013
8437720 Variable-gain low noise amplifier for digital terrestrial applications May. 7, 2013
8410846 Variable gain amplifier Apr. 2, 2013
8401129 Digital automatic gain control Mar. 19, 2013
8400095 Constant-speed control circuit for BLDC motors Mar. 19, 2013
8395447 Low-noise amplifier Mar. 12, 2013
8395446 Dual-mode amplifier Mar. 12, 2013
8385016 Asymmetric correction circuit Feb. 26, 2013
8378744 Multi-mode power amplifier Feb. 19, 2013
8378731 Asymmetric correction circuit with negative resistance Feb. 19, 2013
8374294 Apparatus and method for automatic gain control Feb. 12, 2013
8369467 Automatic gain control system Feb. 5, 2013
8369466 Automatic gain control circuit, receiving apparatus and automatic gain control method Feb. 5, 2013
8362836 Incremental gain amplifier Jan. 29, 2013
8358172 Peaking circuit, method for adjusting peaking circuit, differential amplifier installing peaking circuit, laser diode driving circuit installing peaking circuit, and data processing unit insta Jan. 22, 2013











 
 
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