1
Chang Ho Lee, Kyu Hwan An, Ki Seok Yang, Jaejoon Chang, Wangmyong Woo, Younsuk Kim, Haksun Kim, Ockgoo Lee, Dong Ho Lee, Hyungwook Kim, Joy Laskar: Systems and methods for power amplifiers with voltage boosting multi-primary transformers. Samsung Electro-Mechanics, Georgia Tech Research Corporation, Sutherland Asbill & Brennan, February 1, 2011: US07880547 (86 worldwide citation)

Systems and methods may be provided for a power amplifier system. The systems and methods may include a plurality of power amplifiers, where each power amplifier includes at least one output port. The systems and methods may also include a plurality of primary windings each having a first number of ...


2
Dong Ho Lee, Ki Seok Yang, Chang Ho Lee, Haksun Kim, Joy Laskar: Compact multiple transformers. Samsung Electro-Mechanics, Georgia Tech Research Corporation, Sutherland Asbill & Brennan, October 12, 2010: US07812701 (50 worldwide citation)

Example embodiments of the invention may provide systems and methods for multiple transformers. The systems and methods may include a first transformer that may include a first primary winding and a first secondary winding, where the first primary winding may be inductively coupled to the first seco ...


3
Wangmyong Woo, Chang Ho Lee, Jaejoon Chang, Haksun Kim: Systems, methods, and apparatuses for linear polar transmitters. Samsung Electro Mechanics Company, Sutherland Asbill & Brennan, December 28, 2010: US07860466 (47 worldwide citation)

Systems and methods are disclosed for providing a linear polar transmitter. The systems and methods may include generating an input amplitude signal and an input phase signal, where the input amplitude signal and the input phase signal are orthogonal components of an input signal, and where the inpu ...


4
Wangmyong Woo, Chang Ho Lee, Jungsuk Lee, Haksun Kim: Systems, methods, and apparatuses for spectrum-sensing cognitive radios. Samsung Electro-Mechanics, Sutherland Asbill & Brennan, May 4, 2010: US07710919 (30 worldwide citation)

Systems, methods, and apparatuses are provided for spectrum-sensing cognitive radios that are operative to detect and utilize available RF spectrum resources. The spectrum-sensing cognitive radios include at least one antenna and a frequency-agile radio front-end module in communication with the at ...


5
Minsik Ahn, Chang Ho Lee, Changhyuk Cho, Jaejoon Chang, Wangmyong Woo, Haksun Kim, Joy Laskar: Systems, methods, and apparatuses for complementary metal oxide semiconductor (CMOS) antenna switches using body switching in multistacking structure. Samsung Electro-Mechanics, Georgia Tech Research Corporation, Sutherland Asbill & Brennan, February 15, 2011: US07890063 (26 worldwide citation)

Embodiments of the invention may provide for a CMOS antenna switch, which may be referred to as a CMOS SP4T switch. The CMOS antenna switch may operate at a plurality of frequencies, perhaps around 900 MHz and 1.9 GHz according to an embodiment of the invention. The CMOS antenna switch may include b ...


6
Wangmyong Woo, Chang Ho Lee, Jungsuk Lee, Haksun Kim: Systems, methods, and apparatuses for coarse spectrum-sensing modules. Samsung Electro-Mechanics, Sutherland Asbill & Brennan, February 23, 2010: US07668262 (13 worldwide citation)

Systems, methods, and apparatuses are provided for coarse-sensing modules that are operative for providing initial determinations of spectrum occupancy. The coarse-sensing modules may include a wavelet waveform generator providing a plurality of wavelet pulses, and a multiplier that combines the wav ...


7
Sangjin Byun, Kwanwoo Kim, Kyutae Lim, Chang Ho Lee, Haksun Kim, Joy Laskar: Digital linear amplification with nonlinear components (LINC) transmitter. Samsung Electro-Mechanics, Georgia Tech Research Corporation, Sutherland Asbill & Brennan, February 15, 2011: US07889811 (10 worldwide citation)

Embodiments of the invention may provide for a digital LINC (linear amplification with nonlinear components) transmitter. The digital LINC transmitter may include a signal component separator, at least one digital delay modulator, a frequency synthesizer, at least one power amplifier, a power combin ...


8
Chang Ho Lee, Kyu Hwan An, Ki Seok Yang, Jaejoon Chang, Wangmyong Woo, Younsuk Kim, Haksun Kim, Ockgoo Lee, Dong Ho Lee, Hyungwook Kim, Joy Laskar: Systems and methods for power amplifiers with voltage boosting multi-primary transformers. Samsung Electro-Mechanics, Georgia Tech Research Corporation, Sutherland Asbill & Brennan, March 9, 2010: US07675365 (9 worldwide citation)

Systems and methods may be provided for a power amplifier system. The systems and methods may include a plurality of power amplifiers, where each power amplifier includes at least one output port. The systems and methods may also include a plurality of primary windings each having a first number of ...


9
Minsik Ahn, Chang Ho Lee, Jaejoon Chang, Wangmyong Woo, Haksun Kim, Joy Laskar: Systems, methods, and apparatuses for high power complementary metal oxide semiconductor (CMOS) antenna switches using body switching and substrate junction diode controlling in multistacking structure. Samsung Electro Mechanics Company, Georgia Tech Research Corporation, Sutherland Asbill & Brennan, November 30, 2010: US07843280 (7 worldwide citation)

Embodiments of the invention may provide for a CMOS antenna switch, which may be referred to as a CMOS SPDT switch. The CMOS antenna switch may operate at a plurality of frequencies, perhaps around 900 MHz 1.9 GHz and 2.1 GHz according to an embodiment of the invention. The CMOS antenna switch may i ...


10
Youngsik Hur, Chang Ho Lee, Jeongsuk Lee, Kihong Kim, Haksun Kim: Spectrum-sensing algorithms and methods. Samsung Electro-Mechanics, Sutherland Asbill & Brennan, December 28, 2010: US07860197 (6 worldwide citation)

Spectrum-sensing algorithms and methods may be provided for use in cognitive radios and other applications. The spectrum-sensing algorithms and methods may include receiving an input spectrum having a plurality of channels, performing a coarse scan of the plurality of channels of the input spectrum ...



Click the thumbnails below to visualize the patent trend.