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Class Information
Number: 330/101
Name: Amplifiers > Signal feedback > Positive and negative feedback in same path at different frequencies
Description: Subject matter wherein a single signal feedback circuit means through an impedance shared by the same input and output circuits has for currents flowing through the same shared feedback impedance at one frequency a signal feedback in phase (positive feedback) with the signal input where the signal feedback is applied and at least at some other frequency a signal feedback component flowing through the same feedback impedance, in opposite phase with the signal (negative feedback).

Patents under this class:

Patent Number Title Of Patent Date Issued
8611959 Low cost, active antenna arrays Dec. 17, 2013
8396430 Semiconductor integrated circuit device and wireless communication system Mar. 12, 2013
8335478 Communication device Dec. 18, 2012
7369816 Highly accurate temperature sensor employing mixed-signal components May. 6, 2008
7245887 High speed CMOS transmit-receive antenna switch Jul. 17, 2007
7120399 High speed CMOS transmit-receive antenna switch Oct. 10, 2006
7023267 Switching power amplifier using a frequency translating delta sigma modulator Apr. 4, 2006
5815804 Dual-band filter network Sep. 29, 1998
4242642 Pole quality factor (Q) enhancement technique for notch filters Dec. 30, 1980

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