Patent application number | Description | Published |
20090002086 | Film bulk acoustic resonator calibration - Film bulk acoustic resonators (FBARS) have resonant frequencies that vary with manufacturing variations, but tend to be matched when in proximity on an integrated circuit die. FBAR resonant frequency is determined using a fractional-N synthesizer and comparing phase/frequency of an output signal from the fractional-N synthesizer to a reference. The reference may be derived from a low frequency crystal oscillator, an external signal source, or a communications signal. | 01-01-2009 |
20090034603 | SUBRANGING FOR A PULSE POSITION AND PULSE WIDTH MODULATION BASED TRANSMITTER - Briefly, in accordance with one or more embodiments, in a pulse position and pulse position modulation out-phasing transmitter, the range of the phase angle, theta, may be divided into more than one range to drive a first power amplifier with a first range of theta, and to drive a second power amplifier with a second range of theta. In one or more embodiments, a main power amplifier is driven with a first phase range having a higher probability density function, and an overload power amplifier is driven with a first phase range having a lower probability density function. In one or more embodiments, a full adder may be used to combine the two phases wherein the sum signal is used to drive the main power amplifier, and the carry signal is used to drive the overload power amplifier. | 02-05-2009 |
20090036064 | DIGITAL INTEGRATED TRANSMITTER BASED ON FOUR-PATH PHASE MODULATION - Briefly, in accordance with one or more embodiments, a transmitter comprises four phase modulators to provide four path phase modulation. The phase modulators modulate local oscillator signals with control signals derived from quadrature baseband data to be transmitted to result in four phase modulated signals. The four phase modulated signals may be combined to provide a pulse position and pulse width modulated signal that may have a constant, or nearly constant, amplitude. The frequency spectrum of the control signals have narrower bandwidths and greater out of band attenuation resulting in higher suppression of out of channel and out of band noise. | 02-05-2009 |
20090041108 | CASCADED PHASE PULSE POSITION AND PULSE WIDTH MODULATION BASED DIGITAL TRANSMITTER - Briefly, in accordance with one or more embodiments, a digital transmitter may comprise two or more phase modulators in a cascaded arrangement. The phase modulators may modulate a local oscillator signal using control signals derived from the quadrature baseband data to be transmitted. A closed loop power control feedback arrangement may be used to compare the output power of the transmitter with a desired output signal, and make corrections to the output signal by modifying at least one of the control signals provided to the cascaded phase modulators. | 02-12-2009 |
20090075597 | DEVICE, SYSTEM, AND METHOD OF LOW-NOISE AMPLIFIER - Device, system, and method of low-noise amplifier. For example, an apparatus includes a low-noise amplifier to convert a single-ended wireless communication signal into a corresponding differential signal. | 03-19-2009 |
20090322427 | TRANSISTOR AND ROUTING LAYOUT FOR A RADIO FREQUENCY INTEGRATED CMOS POWER AMPLIFIER DEVICE - An integrated CMOS power amplifier system to improve amplifier performance, the integrated CMOS power amplifier system including a plurality of differential main amplifier cores, a plurality of ground pads, and a plurality of routes to connect the plurality of differential main amplifier cores to the plurality of ground pads. Each differential main amplifier core includes a pair of collocated main amplifier core transistors. Each ground pad is connected to a subset of the differential main amplifier cores. Embodiments of the integrated CMOS power amplifier system decrease parasitic inductance to ground and increase the transconductance and amplification of the integrated CMOS power amplifier system, thus improving performance. | 12-31-2009 |
20110151792 | Method for second intercept point calibration based on opportunistic reception - A transceiver device that performs an intercept point calibration using signal interferers is described. The signal interferers include at least self-generated signal interferers or opportunistic signal interferers in surrounding areas. Due to non-linearity in the transceiver device, intermodulation distortion (IMD) signal components are generated. Filtering of the IMD signal components is performed to allow low-frequency components, such as a second order intermodulation (IM2) to pass through. A dynamic minimization algorithm is performed to minimize distortion effects of the low-frequency components. | 06-23-2011 |
20110267120 | DELAY LINE CALIBRATION - In some embodiments, provided are calibration techniques for measuring mismatches between TDL delay stage elements, and in some cases, then compensating for the mismatches to minimize performance degradation. | 11-03-2011 |
20110293033 | DEVICE, SYSTEM AND METHOD OF TRANSMITTER OUTPUT POWER MANAGEMENT - Some demonstrative embodiments include devices, systems and/or methods of transmitter output power management. For example, a device may include a transmitter capable of generating a wireless communication signal, and maintaining at least one of a peak-to-average-power-ratio (PAPR) of the wireless communication signal and a transmission power of the transmitter substantially unaffected by at least one of a temperature of the transmitter and a supply voltage of the transmitter. Other embodiments are described and claimed. | 12-01-2011 |
20120129468 | INTEGRATED TRANSMIT/RECEIVE SWITCH - An apparatus comprises a transmit network to transmit an input from a first amplifier to an antenna, a receive network to provide an input from an antenna to a second amplifier, a first switch to selectively decouple the transmit network from the antenna, and a second switch to selectively decouple the receive network from the antenna. Other embodiments may be described. | 05-24-2012 |
20120142304 | Power Amplifiers for Wireless Systems - A wireless transceiver may include a power amplifier that uses an envelope tracker. The envelope tracker may include stacked buck switching supply modulators, each having two different supply voltages. In one embodiment, the two different supply voltages are higher and lower supply voltages, which relaxes the voltage head room on the switching regulator and allows the use of thin gate fast transistors in some embodiments. | 06-07-2012 |
20120161830 | DEVICE, SYSTEM AND METHOD OF CONFIGURABLE FREQUENCY SIGNAL GENERATION - Some demonstrative embodiments include devices, systems and/or methods of configurable frequency signal generation. For example, a device may include at least one configurable local-oscillator (LO) generator to receive an input frequency signal and one or more configurable input values and to convert the input frequency signal into at least one output frequency signal according to a configurable conversion ratio, which is based on the configurable input values. | 06-28-2012 |
20120163492 | DEVICE, SYSTEM AND METHOD OF WIRELESS COMMUNICATION OVER A PLURALITY OF WIRELESS COMMUNICATION FREQUENCY CHANNELS - Some demonstrative embodiments include devices, systems and/or methods of wireless communication over a plurality of wireless communication frequency channels. For example, a wireless communication device may include a frequency source to generate a source frequency signal; a plurality of local-oscillator (LO) generators to generate a respective plurality of different carrier signal frequencies based on the source frequency signal; and a plurality of radio-frequency (RF) paths to simultaneously communicate over the plurality of carrier signal frequencies, respectively. | 06-28-2012 |
20130309983 | VOLTAGE-CONTROLLED OSCILLATOR WITH REDUCED SINGLE-ENDED CAPACITANCE - Embodiments provide a voltage controlled oscillator (VCO) having reduced single-ended capacitance. In one embodiment, the VCO may include a transformer, a capacitor bank, and a gain stage. The transformer may include a primary inductor and a secondary inductor, and the secondary inductor may be inductively coupled to the primary inductor. The capacitor bank may be coupled to the secondary inductor and may provide a majority of a total capacitance of the VCO. The gain stage may be coupled to the primary inductor and configured to receive a supply signal and to drive a differential current in the primary inductor, thereby inducing an output signal across the secondary inductor having a frequency equal to a resonant frequency of the VCO. | 11-21-2013 |
20140004810 | DEVICE, SYSTEM AND METHOD OF DETECTING TRANSMITTER POWER | 01-02-2014 |
20140161160 | INTEGRATED TRANSMIT/RECEIVE SWITCH - An apparatus comprises a transmit network to transmit an input from a first amplifier to an antenna, a receive network to provide an input from an antenna to a second amplifier, a first switch to selectively decouple the transmit network from the antenna, and a second switch to selectively decouple the receive network from the antenna. Other embodiments may be described. | 06-12-2014 |
20140176368 | PACKAGE STRUCTURES INCLUDING DISCRETE ANTENNAS ASSEMBLED ON A DEVICE - Methods of forming a microelectronic packaging structure and associated structures formed thereby are described. Those methods and structures may include forming a package structure comprising a discrete antenna disposed on a back side of a device, wherein the discrete antenna comprises an antenna substrate, a through antenna substrate via vertically disposed through the antenna substrate. A through device substrate via that is vertically disposed within the device is coupled with the through antenna substrate via, and a package substrate is coupled with an active side of the device. | 06-26-2014 |
20140306772 | MULTI-PHASE VOLTAGE-CONTROLLED OSCILLATOR - Embodiments provide a multi-phase voltage controlled oscillator (VCO) that produces a plurality of out-put signals having a common frequency and different phases. In one embodiment, the VCO may include a passive conductive structure having a first ring and a plurality of taps spaced around the first ring. The VCO may further include a capacitive load coupled to the passive conductive structure, one or more feedback structures coupled between a pair of opposing taps of the plurality of taps, and one or more current injection devices coupled between a pair of adjacent taps of the plurality of taps. | 10-16-2014 |
20150036767 | DIGITALLY CONTROLLED EDGE INTERPOLLATOR (DCEI) FOR DIGITAL TO TIME CONVERTERS (DTC) - A Digital-to-Time (DTC) for a Digital Polar Transmitter (DPT) comprises a coarse delay/phase segment and a fine delay/phase segment. The coarse delay/phase segment generates an even delay/phase signal and an odd delay/phase signal. The fine/phase delay segment receives the even coarse phase signal and the odd coarse phase signal, and is responsive to a fine delay/phase control signal to generate a fine delay/phase output signal that is an interpolation of the even delay/phase signal and the odd delay/phase signal. In one exemplary embodiment, the fine delay/phase control signal comprises a binary signal having 2 | 02-05-2015 |
20150049840 | DIGITAL-TO-TIME CONVERTER AND METHODS FOR GENERATING PHASE-MODULATED SIGNALS - Embodiments of a digital-to-time converter (DTC) and methods for generating phase-modulated signals are generally described herein. In some embodiments, a divide by 2N+/−1 operation on an oscillator signal generates first and second divider signals, the first divider signal is sampled to provide a rising-edge correlated signal, a divider unit output signal is sampled to provide a falling edge correlated signal, and either the second divider signal or a delayed version of the second divider signal is provided as the divider unit output signal. A selection between the rising-edge and the falling-edge correlated signals generates edge signals. A fine phase-modulated output signal is generated based on an edge interpolation between a first and second edge signals. | 02-19-2015 |
20150074156 | METHODS AND SYSTEMS TO COMPENSATE FOR NON-LINEARITY OF A STOCHASTIC SYSTEM - Determination of digital compensation to compensate for non-linearity of stochastic system configured to sample a phase difference, based on statistical analysis of calibration data generated by the stochastic system in response to a linear phase ramp. The stochastic system may include a set of stochastic sampler circuits to sample a phase difference at periodic events, and calibration data may include a digital value of set of stochastic samples for each of multiple events. The calibration data may include sequences of the digital values in which the digital values increment over a range of the stochastic system (i.e., between saturation states of the stochastic system). Statistical analysis may include histogram analysis to estimate the probability distribution of the calibration data. The stochastic system may be configured as part of a time-to-digital converter, which may be configured within a feedback loop of a digitally controllable phase lock loop. | 03-12-2015 |