Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 8160534 | Applications of universal frequency translation Frequency translation and applications of same are described herein. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and filtering, and combinations and applica... | 04/17/2012 |
| 8160196 | Networking methods and systems A network system includes integrated radio transceivers and digitizers, integrated baseband processors and device controllers, digital interfaces there between, and architectures and partitions for same. Licensing methodologies are provided for implementing the feat... | 04/17/2012 |
| 8116704 | Switching power supply Methods and systems for enhancing system efficiency in a power amplification, modulation, and transmission system are provided. Embodiments include determining output power characteristics of a selected modulation scheme to be employed in data transmission, determin... | 02/14/2012 |
| 8077797 | Method, system, and apparatus for balanced frequency up-conversion of a baseband signal A balanced transmitter up-converts a baseband signal directly from baseband-to-RF. The up-conversion process is sufficiently linear that no IF processing is required, even in communications applications that have stringent requirements on spectral growth. In operati... | 12/13/2011 |
| 8059749 | Systems and methods of RF power transmission, modulation, and amplification, including embodiments for compensating for waveform distortion Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 11/15/2011 |
| 8050353 | Systems and methods of RF power transmission, modulation, and amplification, including embodiments for compensating for waveform distortion Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 11/01/2011 |
| 8036306 | Systems and methods of RF power transmission, modulation and amplification, including embodiments for compensating for waveform distortion Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 10/11/2011 |
| 8036304 | Apparatus and method of differential IQ frequency up-conversion A balanced transmitter up-converts I and Q baseband signals directly from baseband-to-RF. The up-conversion process is sufficiently linear that no IF processing is required, even in communications applications that have stringent requirements on spectral growth. In ... | 10/11/2011 |
| 8031804 | Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 10/04/2011 |
| 8026764 | Generation and amplification of substantially constant envelope signals, including switching an output among a plurality of nodes Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 09/27/2011 |
| 8019291 | Method and system for frequency down-conversion and frequency up-conversion A method and system is described wherein a signal with a lower frequency is up-converted to a higher frequency. In one embodiment, the higher frequency signal is used as a stable frequency and phase reference. In another embodiment, the invention is used as a transm... | 09/13/2011 |
| 8013675 | Combiner-less multiple input single output (MISO) amplification with blended control Multiple-Input-Single-Output (MISO) amplification and associated VPA control algorithms are provided herein. According to embodiments of the present invention, MISO amplifiers driven by VPA control algorithms outperform conventional outphasing amplifiers, including ... | 09/06/2011 |
| 7991815 | Methods, systems, and computer program products for parallel correlation and applications thereof A fast correlator transform (FCT) algorithm and methods and systems for implementing same, correlate an encoded data word (X0-XM-1) with encoding coefficients (C0-CM-1), wherein each of (X0-XM-1) is r... | 08/02/2011 |
| 7966012 | Wireless protocol converter Methods and systems for interfacing between broadband wireless communication systems and Local Area Network (LAN) systems includes a repeater station placed at a location that receives sufficient signal strength from a broadband wireless service provider. LAN device... | 06/21/2011 |
| 7949365 | Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 05/24/2011 |
| 7945224 | Systems and methods of RF power transmission, modulation, and amplification, including waveform distortion compensation embodiments Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 05/17/2011 |
| 7937059 | Converting an electromagnetic signal via sub-sampling Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing ra... | 05/03/2011 |
| 7936022 | Method and circuit for down-converting a signal Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing ra... | 05/03/2011 |
| 7932776 | RF power transmission, modulation, and amplification embodiments Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 04/26/2011 |
| 7929989 | Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 04/19/2011 |
| 7929638 | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen... | 04/19/2011 |
| 7911272 | Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments Embodiments of the present invention enable a blended control approach to generate a desired output waveform in an outphasing-based system. Embodiments of blended control according to the present invention combine outphasing with bias and/or amplitude control to yie... | 03/22/2011 |
| 7894789 | Down-conversion of an electromagnetic signal with feedback control Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal, and applications thereof are described herein. Reducing or eliminating DC offset voltages and re-radiation generated when down-converting an electromagnet... | 02/22/2011 |
| 7885682 | Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 02/08/2011 |
| 7865177 | Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on ap... | 01/04/2011 |
| 7844235 | RF power transmission, modulation, and amplification, including harmonic control embodiments Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 11/30/2010 |
| 7835709 | RF power transmission, modulation, and amplification using multiple input single output (MISO) amplifiers to process phase angle and magnitude information Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 11/16/2010 |
| 7822401 | Apparatus and method for down-converting electromagnetic signals by controlled charging and discharging of a capacitor Methods, systems, and apparatuses for down-converting and up-converting an electromagnetic signal. In embodiments, the invention operates by receiving an electromagnetic signal and recursively operating on approximate half cycles of a carrier signal. The recursive o... | 10/26/2010 |
| 7773688 | Method, system, and apparatus for balanced frequency up-conversion, including circuitry to directly couple the outputs of multiple transistors A balanced transmitter up-converts a baseband signal directly from baseband-to-RF. The up-conversion process is sufficiently linear that no IF processing is required, even in communications applications that have stringent requirements on spectral growth. In operati... | 08/10/2010 |
| 7750733 | Systems and methods of RF power transmission, modulation, and amplification, including embodiments for extending RF transmission bandwidth Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 07/06/2010 |
| 7746764 | Orthogonal signal generation using vector spreading and combining The present invention provides an approach for quadrature signal generation, which does not require orthogonal reference signals or nearly orthogonal reference signals as an input or given condition. The techniques provided herein can utilize a reference phase shift... | 06/29/2010 |
| 7724845 | Method and system for down-converting and electromagnetic signal, and transforms for same Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on ap... | 05/25/2010 |
| 7697916 | Applications of universal frequency translation Frequency translation and applications of same are described herein. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and filtering, and combinations and applica... | 04/13/2010 |
| 7693502 | Method and system for down-converting an electromagnetic signal, transforms for same, and aperture relationships Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on ap... | 04/06/2010 |
| 7693230 | Apparatus and method of differential IQ frequency up-conversion A balanced transmitter up-converts I and Q baseband signals directly from baseband-to-RF. The up-conversion process is sufficiently linear that no IF processing is required, even in communications applications that have stringent requirements on spectral growth. In ... | 04/06/2010 |
| 7672650 | Systems and methods of RF power transmission, modulation, and amplification, including multiple input single output (MISO) amplifier embodiments comprising harmonic control circuitry Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 03/02/2010 |
| 7653158 | Gain control in a communication channel Methods and apparatuses for reducing DC offsets in a communication system are described. In a first aspect, a feedback loop circuit reduces DC offset in a wireless local area network (WLAN) receiver channel. The frequency response of the feedback loop circuit can be... | 01/26/2010 |
| 7653145 | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen... | 01/26/2010 |
| 7647030 | Multiple input single output (MISO) amplifier with circuit branch output tracking Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 01/12/2010 |
| 7639072 | Controlling a power amplifier to transition among amplifier operational classes according to at least an output signal waveform trajectory Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one... | 12/29/2009 |
