Featured patents

Generating Negative Impedance Compensation
US 08872587 B2, Oct. 28, 2014, Having gain control means, Rajesh Cheeranthodi et al. / International Business Machines Corporation (Armonk, US)
An apparatus for generating negative impedance compensation, the apparatus…

Amplifying Circuits and Calibration Methods Therefor
US 08760224 B2, June 24, 2014, With Periodic Switching Input-Output, Kuo-Hsin Chen / Mediatek Inc. (Hsin-Chu, TW)
An amplifying circuit comprising:…

Amplifying Device and Wireless Transmission Device Using the Same
US 08773201 B2, July 8, 2014, Hum or Noise or Distortion Bucking Introduced Into Signal Channel, Takashi Yamamoto et al. / Sumitomo Electric Industries, Ltd. (Osaka-shi, Osaka, JP)
An amplifying device comprising:…

Dual Rail Out-Phased Envelope Tracking Modulator
US 08704594 B2, April 22, 2014, Bias control signal from input of amplifier, Steven A. Mulawski / Auriga Measurement Systems, LLC (Chelmsford, US)
A drain modulator circuit for operation with a radio frequency (RF) amplifier…

Control of Minimum Current in Output Transistors of an Amplifier Output Stage
US 08665024 B2, March 4, 2014, Having field effect transistor, Alexandre Huffenus et al. / EASII IC SAS (Grenoble Cedex, FR)
An amplifier comprising:…

Radiofrequency Amplifier
US 08638171 B2, Jan. 28, 2014, Including frequency-responsive means in the signal transmission path, Igor Blednov et al. / NXP, B.V. (Eindhoven, NL)
A radiofrequency amplifier comprising: an active device mounted on a substrate…

Integrated Circuit
US 08581666 B2, Nov. 12, 2013, Including particular biasing arrangement, Yosuke Ogasawara / Kabushiki Kaisha Toshiba (Tokyo, JP)
An integrated circuit, comprising:…

Amplifier Assembly Having Controlled Return of Power Loss
US 08570104 B2, Oct. 29, 2013, With Control of Power Supply or Bias Voltage, Oliver Heid / Siemens Aktiengesellschaft (Munich, DE)
An amplifier assembly for an initial signal having an amplitude and an initial…

Amplifying Apparatus
US 08558616 B2, Oct. 15, 2013, Hum or Noise or Distortion Bucking Introduced Into Signal Channel, Yousuke Okazaki et al. / Fujitsu Limited (Kawasaki, JP)
An amplifying apparatus comprising:…

Amplifying Device and Method Involving Envelope Signal
US 08536941 B2, Sept. 17, 2013, With Control of Power Supply or Bias Voltage, Hironobu Hongo et al. / Fujitsu Limited (Kawasaki, JP)
An amplifying device comprising:…

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