Voinigescu
Sorin Voinigescu, Toronto CA
Patent application number | Description | Published |
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20120190312 | RADIO ANTENNA SWITCH - A radio antenna switch module for a high frequency radio transceiver enables the radio transceiver to have a small number of receivers and transmitters and a larger number of antennas, whereby each antenna has a different diversity characteristic. The diversity between antennas provide for greater communication reliability, while the small number of receivers and transmitters allows the transceiver to operate at relatively low power compared to conventional radio transceivers. The switch module also allows for two loopback modes between the transmitter and the receiver for at-speed, low-cost self-test in production. | 07-26-2012 |
20130147566 | VARACTOR VOLTAGE CONTROLLED OSCILLATOR (VCO) PROVIDING INDEPENDENT COARSE AND FINE FREQUENCY TUNING - A voltage controlled oscillator, includes a tank circuit including an inductor having a value L, interconnected with first and second variable capacitors, having values C | 06-13-2013 |
Sorin P. Voinigescu, Ontario CA
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20110013726 | DIRECT MM-WAVE M-ARY QUADRATURE AMPLITUDE MODULATION (QAM) MODULATOR OPERATING IN SATURATED POWER MODE - In one embodiment, a circuit comprises a first pair of elements, a second pair of elements, a combiner, and a signal output. Each element in the first and second pair of elements comprises an amplitude-control input for receiving an amplitude-control bit, a phase-control input for receiving a phase-control bit, a signal input for receiving an input signal, a modulator for producing an output signal based on the amplitude-control bit, the phase-control bit, and the input signal, and an signal output for transmitting the output signal to the combiner. The combiner combines the two output signals from the first and second pair of elements to produce an output signal for the circuit to be transmitted by the signal output of the circuit. | 01-20-2011 |
Sorin P. Voinigescu, Toronto CA
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20100158084 | HIGH FREQUENCY SYSTEM ON CHIP TRANSCEIVER - A system-on-chip (SOC) transceiver is provided. The transceiver is configured to operate in excess of 100 GHz and comprising the following components. A quadrature oscillator is configured to generate a fundamental frequency and a second harmonic frequency and comprises at least a pair of high frequency outputs at said second harmonic frequency. At least the second harmonic frequency exceeds 100 GHz. A transmission output is coupled to one of the high frequency outputs for transmitting an output signal at the second harmonic frequency. A transmission signal transformer is coupled to the other one of the high frequency outputs and configured to generate a differential oscillator signal at the second harmonic frequency. A radio frequency input receives radio frequency signals at the transceiver from an antenna. A radio frequency signal transformer coupled to the radio frequency input is configured to generate a differential radio frequency signal at the radio frequency. A mixer is configure to compare the differential radio frequency signal with the differential oscillator signal and output the comparison as an intermediate frequency signal. | 06-24-2010 |
Sorin Petre Voinigescu, Scarborough CA
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20110014880 | SYSTEM AND METHOD FOR A SINGLE CHIP DIRECT CONVERSION TRANSCEIVER IN SILICON - A direct conversion radio frequency (RF) transceiver integrated circuit (IC) is provided. The IC includes a local oscillator block, a receiver block, and a transmitter block disposed on a single silicon-based integrated circuit. Each of such blocks are connected to a ground plane that includes a metal located adjacent to each of such blocks, air gaps located between each section of the metal adjacent to such blocks, each section of the metal being connected to the adjacent section of metal in the group plane at a location on the edge of the ground plan corresponding to a point substantially equidistant from the two sections of metal. A system and method is provided for implementing a direct conversion integrated circuit architecture. A clock distribution system is provided, as well as a method for radio detection and ranging (RADAR) using a Doppler RADAR transceiver system in the W-band. A method for noise isolation between blocks of an integrated circuit is also provided. | 01-20-2011 |