MULTIGIG INC. Patent applications |
Patent application number | Title | Published |
20120286882 | ELECTRONIC CIRCUITRY - Electronic circuitry comprising operational circuits of active switching type requiring timing signals, and conductive means for distributing said timing signals to the operational circuits, wherein the timing signal distribution means includes a signal path that has different phases of a drive signal are supplied via active means at different positions about the signal path where that path exhibits endless electro-magnetic continuity without signal phase inversion or has interconnections with another signal path having different substantially unidirectional signal flow where there is no endless electromagnetic continuity between those signal paths and generally has non-linear associated circuit means where the signal path is of a transmission line nature. | 11-15-2012 |
20120133445 | Electronic Pulse Generator And Oscillator - Improvements in and relating to electronic pulse generation or oscillation circuitry based on a signal path exhibiting endless electromagnetic continuity and affording signal phase inversion in setting pulse duration or half-cycles of oscillation within time of signal traverse of said signal path, and having active switching means associated with said signal path to set rise and fall times of each said pulse or said half-cycle of oscillation, including for frequency adjustment by selective inductance and power saving without stopping pulse generation or oscillation. | 05-31-2012 |
20100253439 | Electronic Circuitry - Electronic circuitry comprising operational circuits of active switching type requiring timing signals, and conductive means for distributing said timing signals to the operational circuits, wherein the timing signal distribution means includes a signal path that has different phases of a drive signal are supplied via active means at different positions about the signal path where that path exhibits endless electro-magnetic continuity without signal phase inversion or has interconnections with another signal path having different substantially unidirectional signal flow where there is no endless electromagnetic continuity between those signal paths and generally has non-linear associated circuit means where the signal path is of a transmission line nature. | 10-07-2010 |
20100238057 | ROTARY CLOCK FLASH ANALOG TO DIGITAL CONVERTER SYSTEM AND METHOD - System and method for converting an analog voltage to a digital signal. The system includes an input voltage sampler, a ramp generator, a comparator, a time-to-digital converter (TDC), and a multiphase oscillator, preferably a rotary traveling wave oscillator, that provides the critical system timing. The phases of the multiphase oscillator define a sampling interval during which the input voltage is sampled and held and a conversion interval during which the ramp generator, comparator, and TDC operate to convert the sampled voltage to the digital signal. The TDC samples at times provided by the phases of the multiphase oscillator to form the bits of the digital signal. The sampler, ramp generator, and comparator can be constructed from multiple fragments, one of which is selectable for calibration while the rest of the fragments are joined for normal operation. Multiple converters can be interleaved to increase the sampling rate. | 09-23-2010 |
20100225404 | ELECTRONIC PULSE GENERATOR AND OSCILLATOR - Improvements in and relating to electronic pulse generation or oscillation circuitry based on a signal path exhibiting endless electromagnetic continuity and affording signal phase inversion in setting pulse duration or half-cycles of oscillation within time of signal traverse of said signal path, and having active switching means associated with said signal path to set rise and fall times of each said pulse or said half-cycle of oscillation, including for frequency adjustment by selective inductance and power saving without stopping pulse generation or oscillation. | 09-09-2010 |
20100117749 | Inductance Enhanced Rotary Traveling Wave Oscillator Circuit And Method - An inductance enhanced rotary traveling wave oscillator is disclosed. Portions of the transmission line conductors are increased in length and run in parallel. Because the currents in these portions travel in the same direction, the inductance of these inductors is increased. By controlling the length of the transmission line conductors in these areas compared to the lengths in which the currents travel in opposite directions, the overall impedance of the oscillator can be increased. Increased impedance leads to lower power, higher Q, and lower phase noise for the oscillator. Additionally, the folded nature of the transmission line conductors permits a longer length of transmission line conductors to be routed in a smaller area. The folded nature also permits placement of the devices to take into account their switching delays. A folded circular version of the oscillator is possible, leading to improved access to phase taps on the oscillator. | 05-13-2010 |
20100117748 | Wave Reversing System and Method for a Rotary Traveling Wave Oscillator - Circuitry for establishing a traveling wave on a rotary traveling wave oscillator is described. The circuitry includes a gain portion that establishes a wave in a preferred direction by degenerating any wave traveling opposite to the preferred direction and regenerating any wave traveling in the preferred direction. If there are two such gain portions, each having opposite preferred directions, then a wave that is presently established in one direction can be degenerated and a new wave can be established in the opposite direction, thereby achieving reversibility of the traveling wave in real time. Each of the gain portions included in a plurality of regeneration/degeneration elements present on the rotary oscillator. Each of the regeneration/degeneration elements is connected to a pair of taps on the oscillator, the taps being separated by a direction dependent phase difference. | 05-13-2010 |
20090045850 | RTWO-BASED DOWN CONVERTER - A multiphase mixer using a rotary traveling wave oscillator is disclosed. In addition to the oscillator, the mixer includes first and second mixer circuits. The rotary traveling wave oscillator generates a first set of N/2 phase and a second set of N/2 phases, where each phase has a frequency that is a factor of N/2 less than the incoming radio frequency signal. The first set of phases are sine signals and the second set of phases are cosine signals. The first mixer circuit generates a first down-converted signal from the first set of phases and the incoming rf signal. The second mixer circuit generates a second down-converted signal from the second set of phases and the rf signal. | 02-19-2009 |
20080272952 | ROTARY CLOCK FLASH ANALOG TO DIGITAL CONVERTER SYSTEM AND METHOD - System and method for converting an analog voltage to a digital signal. The system includes an input voltage sampler, a ramp generator, a comparator, a time-to-digital converter (TDC), and a multiphase oscillator, preferably a rotary traveling wave oscillator, that provides the critical system timing. The phases of the multiphase oscillator define a sampling interval during which the input voltage is sampled and held and a conversion interval during which the ramp generator, comparator, and TDC operate to convert the sampled voltage to the digital signal. The TDC samples at times provided by the phases of the multiphase oscillator to form the bits of the digital signal. The sampler, ramp generator, and comparator can be constructed from multiple fragments, one of which is selectable for calibration while the rest of the fragments are joined for normal operation. Multiple converters can be interleaved to increase the sampling rate. | 11-06-2008 |
20080266989 | SRAM CIRCUITRY - A static ram cell is described. The cell includes a pair of cross-coupled transistors and a pair of diode-connected transistors operated from a wordline that provides power to the cell. The cell has three main operating modes, reading, writing, and data retention. Reading is performed by sensing current flowing from a powered-up wordline through a conductive one of the cross-coupled transistors. Writing is performed by pulsing the source of the conductive one of the cross-coupled transistors with a positive voltage to flip the conductive states of the cross-coupled transistors. Data retention is performed by using leakage currents to retain the conductive states of the cross-coupled transistors. A decoder for an array of static ram cells may be operated synchronously and in a pipelined fashion using a rotary traveling wave oscillator that provides the clocks for the pipeline. The cell is capable of detecting an alpha particle strike with suitable circuitry. | 10-30-2008 |
20080265998 | DUAL PLL LOOP FOR PHASE NOISE FILTERING - System for filtering an input frequency to produce an output frequency having low phase noise. A first PLL includes, in the feedback path, a frequency translation circuit which translates a frequency from a VCO in the first PLL by an offset frequency provided by the second PLL to provide either a sum or difference frequency. The first PLL locks its VCO to a crystal oscillator input frequency translated by the offset frequency due to the frequency translation circuit. A second PLL compares the input frequency to be filtered to the output of the first PLL VCO. The second PLL causes the first PLL VCO to lock to the input frequency by varying the offset frequency it provides to the frequency translation circuit. The bandwidth of the second PLL is significantly smaller than the bandwidth of the first PLL. The filtered output frequency is available from the first PLL VCO. | 10-30-2008 |
20080260049 | SERIALIZER AND DESERIALIZER - A system and method of transmitting and receiving bit serial information is disclosed. In a differential embodiment, serial bits are transmitted by a pair of line-matched differential drivers that are ac coupled to a two-conductor transmission line. A receiver is ac coupled to the line and receives the transmitted serial information via a high pass filter. The receiver includes a level-triggered latch that provides a threshold for receiving the serial information, changes state to reflect the received information, and then clamps the received information to the state of the latch. In a single-ended embodiment, the ac-coupled receiver receives the bit serial information via a high pass filter. The resistance for the filter is an active device that also provides a voltage threshold for the receiver. The received bit serial information changes the state of a device which then alters the threshold, via hysteresis, for the net bit of serial information. | 10-23-2008 |
20080258780 | FREQUENCY DIVIDER - A frequency divider using a clock source with a plurality of phase signals of a multi-phase oscillator. In one version, the divider includes a plurality of spot-moving stages that are connected to form a ring. Spot-moving stages are stages that advance a one or a zero, while clearing the previous stage. Depending on the number of stages and the number of phases of the clock to advance a spot through all of the stages, a divider ratio is determined. In another embodiment, a plurality of latch elements is provided with a divided input and each is re-clocked with the phases of a multi-phase oscillator. The outputs of the latch elements are combined in a capacitor array to create the output waveform. An interpolator useful in conjunction with a frequency divider is also disclosed. When the interpolator is placed in the feedback path of a PLL, a fractional frequency multiplier/divider results. | 10-23-2008 |