| Patent application number | Description | Published |
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| 20130027243 | NEAR-FIELD MILLIMETER WAVE IMAGING - Systems and method for near-field millimeter wave imaging are provided, in particular, near-field millimeter wave imaging systems and methods that enable sub-wavelength resolution imaging by scanning objects with sub-wavelength probe elements and capturing and measuring phase and intensity of reflected energy to generate images. | 01-31-2013 |
| 20130027244 | NEAR-FIELD MILLIMETER WAVE IMAGING - Systems and method for near-field millimeter wave imaging are provided, in particular, near-field millimeter wave imaging systems and methods that enable sub-wavelength resolution imaging by scanning objects with sub-wavelength probe elements and capturing and measuring phase and intensity of reflected energy to generate images. | 01-31-2013 |
| 20130194042 | Multi-Stage Amplifier Using Tunable Transmission Lines and Frequency Response Calibration of Same - A multi-stage amplifier is provided that uses tunable transmission lines, as well as a calibration method for the multi-stage amplifiers. A multi-stage amplifier, comprises a plurality of tunable amplification stages, wherein each of the tunable amplification stages comprises a tunable resonator based on a transmission line having a tunable element. The tunable elements may vary a capacitance or an inductance to tune a frequency of an applied signal. A calibration method is provided for a multi-stage amplifier having a plurality of transmission lines, an input stage and an output stage. The multi-stage amplifier is calibrated by generating a signal to determine a frequency for a substantially maximum power; generating an error signal by comparing the frequency for the substantially maximum power with a desired frequency; varying a digital control code applied to each of the tunable transmission lines, input stage and output stage until the error signal satisfies predefined criteria. | 08-01-2013 |
| 20130332096 | UNIVERSAL JITTER METER AND PHASE NOISE MEASUREMENT - A device and method for measuring jitter includes a capacitive element capable of being selectively charged, wherein the selection is made by a received signal from which an accumulated jitter value is to be determined. An analog-to-digital converter is coupled to the capacitive element to determine a voltage across the capacitive element after a number of cycles of the received signal. A determination module is coupled to the analog-to-digital converter to output the accumulated jitter value of the received signal using the voltage, wherein the accumulated jitter value is accumulated over the number of cycles. | 12-12-2013 |
| 20140184439 | SCALABLE POLARIMETRIC PHASED ARRAY TRANSCEIVER - A polarimetric transceiver front-end includes two receive paths configured to receive signals from an antenna, each receive path corresponding to a respective polarization. Each front-end includes a variable amplifier and a variable phase shifter; a first transmit path configured to send signals to the antenna, where the transmit path is connected to the variable phase shifter of one of the two receive paths and includes a variable amplifier; and a transmit/receive switch configured to select between the first transmit path and the two receive paths for signals, where the transmit/receive switch includes a quarter-wavelength transmission line that adds a high impedance to the transmit path when the transmit/receive switch is in a receiving state. | 07-03-2014 |
| 20150077191 | CURRENT RE-USE OSCILLATOR, DOUBLER AND REGULATOR CIRCUIT - There is provided an integrated electronic circuit. The integrated electronic circuit includes a voltage controlled oscillator and a frequency doubler connected to the voltage controlled oscillator. A frequency doubling input of the frequency doubler is load isolated from an output of the voltage controlled oscillator. | 03-19-2015 |
| 20150077192 | CURRENT RE-USE OSCILLATOR, DOUBLER AND REGULATOR CIRCUIT - There is provided an integrated electronic circuit. The integrated electronic circuit includes a voltage controlled oscillator and a frequency doubler connected to the voltage controlled oscillator. A frequency doubling input of the frequency doubler is load isolated from an output of the voltage controlled oscillator. | 03-19-2015 |
| 20150084703 | SPEED OF LIGHT REFERENCED OSCILLATOR - An oscillator and a method of fabricating the oscillator are described. The oscillator includes a resonator with a plurality of transmission lines. An oscillation frequency of the oscillator is independent of at least one dimension of the plurality of transmission lines. The oscillator also includes a negative resistance circuit coupled to the resonator that cancels internal loss resistance of the resonator. | 03-26-2015 |
| 20150084709 | SPEED OF LIGHT REFERENCED OSCILLATOR - An oscillator and a method of fabricating the oscillator are described. The oscillator includes a resonator with a plurality of transmission lines. An oscillation frequency of the oscillator is independent of at least one dimension of the plurality of transmission lines. The oscillator also includes a negative resistance circuit coupled to the resonator that cancels internal loss resistance of the resonator. | 03-26-2015 |
| Patent application number | Description | Published |
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| 20110026434 | LOCALIZATION OF LUMINAIRES - A node detection system includes an array of nodes ( | 02-03-2011 |
| 20120188109 | Track and Hold Amplifiers and Digital Calibration for Analog-to-Digital Converters - An exemplary differential track and hold amplifier includes a track stage including first and second linearized pairs connected in series at their respective inputs and in parallel at their respective outputs. The differential track and hold amplifier also includes a hold stage selectively coupled to the outputs of the first and second linearized pairs. The hold stage includes a unity gain buffer with feedback having a hold capacitor interconnected across its outputs. The differential track and hold amplifier also includes an output buffer coupled to the outputs of the hold stage. An exemplary analog-to-digital converter includes a differential track-and-hold amplifier, a voltage ladder, and a plurality of slices. Each of the slices in turn includes a differential preamplifier coupled to the track-and-hold amplifier and to a corresponding location on the voltage ladder; a current mode logic latch comparator coupled to the differential preamplifier; a large-swing latch coupled to the current mode logic latch comparator; a complementary metal oxide semiconductor latch having a dummy load; a calibration digital to analog converter connected across outputs of the differential preamplifier to inject calibration currents; and a register coupled to the calibration digital to analog converter and storing calibration values for use thereby. The analog-to-digital converter also includes a multiplexer which multiplexes outputs of the complementary metal oxide semiconductor latches down to a predetermined number of outputs. | 07-26-2012 |
| 20130033333 | SELF CALIBRATED, BROADBAND, TUNABLE, ACTIVE OSCILLATOR WITH UNITY GAIN CELLS FOR MULTI-STANDARD AND/OR MULTIBAND CHANNEL SELECTION - An oscillator includes N greater than unity gain amplifiers, N being at least two. Each of the N greater than unity gain amplifiers has a pair of differential input terminals and a pair of differential output terminals. The oscillator further includes a first pair of variable resistances, N−1 pairs of variable resistances, N−1 pairs of variable capacitances, and a variable capacitance. The pairs of variable resistances couple differential output terminals of the N greater than unity gain amplifiers. The pairs of variable capacitances couple differential input terminals of the N greater than unity gain amplifiers. Each of the N greater than unity gain amplifiers includes a linearized operational transconductance amplifier stage coupled to a corresponding pair of the differential input terminals, and a unity gain buffer with feedback interconnected between the linearized operational transconductance amplifier stage and a corresponding pair of the differential output terminals. | 02-07-2013 |
