WIRELESS DISTANCE MEASURING METHODS, DEVICES AND SYSTEMS WITH VALIDATED MEASUREMENT COMMUNICATIONS
Granted: October 17, 2024
Application Number:
20240349055
A method can include transmitting a request with a request integrity code (IC), receiving a first message at a time t2, executing a validation operation on the first measurement message that includes an operation on at least a portion of the first measurement message with a key. In response to the first measurement message being determined invalid, indicating time t2 as invalid. A second measurement message can be transmitted at a time t3. A third measurement message can be received that…
RATIO-METRIC MULTI-SENSING CONVERTOR
Granted: October 17, 2024
Application Number:
20240345679
Apparatuses and methods of capacitance-to-digital code conversion are described. One apparatus includes a bridge circuit and a modulator front-end circuit. The bridge circuit includes a first terminal to couple to a reference cell and a second terminal to couple to a sensor cell. The modulator front-end circuit includes a comparator coupled to the bridge circuit, a first modulation capacitor coupled to a first input of the comparator, and a second modulation capacitor coupled to a second…
Efficient transmission of Video and Audio over Slave FIFO Interface
Granted: October 3, 2024
Application Number:
20240330229
Systems and methods for translation and transmission of video and audio data over a first-in-first-out interface (FIFO) in a field programmable gate array (FPGA) are provided. The method includes receiving audio and video data including a number of video frames, each with a plurality of video lines separated by a line blanking interval. A first video line is translated and transmitted to a packet-based network through the FIFO in the FPGA while concurrently buffering the audio data in an…
Synchronous Rectifier Scheme to Avoid Cross-conduction in a Fly-Back Converter
Granted: September 26, 2024
Application Number:
20240322699
A fly-back converter and method of operating is provided to eliminate cross-conduction between a power-switch (PS) on a primary side of a transformer and a synchronous-rectifier (SR) on a secondary side when operating in continuous conduction mode. Generally, the method includes turning on the SR when a drain voltage of the SR drops to a negative voltage followed by a rise in the SR-drain-voltage at a first slope as a current is drawn from the secondary side of the transformer through…
RADIO TRANSMITTER
Granted: September 19, 2024
Application Number:
20240313717
A method may include designating selected stages of a power amplifier as active stages. Each active stage includes a tristate inverter having a high side switch and a low side switch connected to the high side switch at a drain node; and a capacitor connected in series with the tristate inverter. The method includes enabling a high side switch of an active stage in a high side state, enabling a low side switch of the active stage in a low side state, and disabling the high side switch…
WIRELESS METHODS, DEVICES AND SYSTEMS FOR RAPID SYNCHRONIZATION WITH PERIODIC BROADCAST LINK
Granted: September 12, 2024
Application Number:
20240306105
A method can include monitoring at least one non-primary advertising channel for packets; determining if any of the packets received during a same periodic advertising interval of a periodic advertising link include synchronization data; in response to acquiring a packet with synchronization data, extracting synchronization data from the packet with synchronization data; and synchronizing to the periodic advertising link with the synchronization data to determine timing for at least one…
FINGERPRINT SENSOR PACKAGES
Granted: September 12, 2024
Application Number:
20240304023
A sensor package includes at least one die, a fingerprint sensor, a mold material, and a land grid array. The fingerprint sensor is electrically coupled to the at least one die. The mold material encapsulates the at least one die. The land grid array layer is electrically coupled to the at least one die. The land grid array layer, the fingerprint sensor, and the mold material each include a common footprint.
HOVER SENSING WITH MULTI-PHASE SELF-CAPACITANCE METHOD
Granted: September 12, 2024
Application Number:
20240302925
A capacitance sensing device includes a transmit (TX) generator for generating a sequence of receive (RX) signals by applying each TX signal pattern in a sequence of TX signal patterns to a set of sensor electrodes. For each TX signal pattern in the sequence of TX signal patterns, and for each subset of three or more contiguous sensor electrodes of the set of sensor electrodes, the TX generator applies to the subset one of a first excitation signal and a second excitation signal. The…
LOW-POWER FAST-TRANSIENT LOW-DROPOUT (LDO) REGULATOR WITH DIRECT FEED-FORWARD
Granted: September 5, 2024
Application Number:
20240295890
A low-dropout (LDO) regulator includes a voltage reference node and a one-stage differential amplifier coupled to the voltage reference node. The one-stage differential amplifier includes: a differential pair of NMOS transistors; a mirroring load comprising a first current source and a PMOS transistor; a direct feed-forward (DFF) loop formed by the PMOS transistor and its parasitic gate-to-drain capacitance during a load transient; and an indirect regulation feedback (IRF) loop formed by…
Current Controlled Architecture for a Vconn Switch
Granted: September 5, 2024
Application Number:
20240297494
A Universal Serial Bus (USB) controller including a Vconn switch having a current controlled architecture, and method for operating the same, are described. In an example embodiment, the Vconn switch includes first and second transistors coupled in series between a Vconn terminal and a communication channel (CC) terminal, a replica switch coupled to the Vconn terminal, a replica current generator coupled to the replica switch, and a resistance control module coupled to the replica…
VOLTAGE MEASUREMENT CHANNEL CALIBRATION FOR BATTERY MANAGEMENT SYSTEMS
Granted: September 5, 2024
Application Number:
20240295612
A first step of a calibration procedure is be performed to obtain a first set of voltage measurements by causing each mode switch of a first set of mode switches of a voltage management subsystem to be placed in a first position and each mode switch of a second set of mode switches of the voltage management subsystem to be placed in a second position. Each mode switch is included within a channel of the voltage management subsystem. A second step of the calibration procedure is performed…
WIRELESS SERVICE DISCOVERY METHODS, DEVICES AND SYSTEMS
Granted: August 29, 2024
Application Number:
20240292202
A method can include, by operation of a wireless device, determining at least one set of wireless channel candidates from available wireless channels of at least one wireless standard; determining a network information value accessible to devices of a wireless network; generating a selection value with an arithmetic-logic operation on the network information value; selecting a plurality of wireless channels from the at least one set of wireless channel candidates with the selection value…
SYSTEM AND METHOD TO REDUCE LATENCY IN SERIAL FFT BASED OFDM RECEIVER SYSTEMS WITH DE-INTERLEAVER
Granted: August 29, 2024
Application Number:
20240291703
One or more devices, systems, and/or methods are provided. In an example of the techniques presented herein, a receiver has a receiver front end configured to receive time domain data in natural order, a fast Fourier transform module configured to generate frequency domain data in digit reversed order based on the time domain data, a demodulator configured to generate first demodulated data in digit reversed order based on the frequency domain data, and a de-interleaver configured to…
COMPACT ROUTING PACKAGE FOR HIGH FREQUENCY ISOLATION
Granted: August 29, 2024
Application Number:
20240290709
Systems, methods, and devices for a ball grid array with non-linear conductive routing are described herein. Such a ball grid array may include a plurality of solder balls that are electrically coupled by a non-linear conductive routing. The non-linear conductive routing may include a plurality of routing sections where each of the plurality of routing sections is disposed at an angle to adjacent routing sections.
INDUCTIVE SENSING METHODS, DEVICES AND SYSTEMS
Granted: August 22, 2024
Application Number:
20240280620
A method can include in a first phase of a sensing operation, controlling at least a first switch to energize a sensor inductance; in a second phase of the sensing operation that follows the first phase, controlling at least a second switch to couple the sensor inductance to a first modulator capacitance to induce a first fly-back current from the sensor inductance, the first fly-back current generating a first modulator voltage at the first modulator capacitance, and in response to the…
IMPLEMENTING ACTIVE CLAMP FLYBACK CONVERTERS WITH IMPROVED EFFICIENCY
Granted: August 22, 2024
Application Number:
20240283365
Implementing active clamp flyback (ACF) converters with improved efficiency is described. In one embodiment, an apparatus includes an active clamp flyback (ACF) flyback converter. The ACF flyback converter includes a primary side including a high side (HS) switch, a low side (LS) switch and an ACF driver, and a secondary side including a secondary-side controller configured at least to obtain a set of input parameters, the set of input parameters including a set of subsystem parameters…
IMPLEMENTING POWER FACTOR CORRECTION WITH SINGLE-STAGE FLYBACK CONVERTERS OPERATING WITH A FIXED SWITCHING FREQUENCY
Granted: August 22, 2024
Application Number:
20240283363
Controlling power factor correction (PFC) in a flyback converter is described. In one embodiment, an apparatus includes a flyback converter configured to operate with a fixed switching frequency. The flyback converter includes a signal transformer, a primary side including a primary-side controller coupled to the signal transformer, and a secondary side including a secondary-side controller coupled to the signal transformer. The secondary-side controller is configured at least to cause a…
IMPLEMENTING POWER FACTOR CORRECTION WITH SINGLE-STAGE FLYBACK CONVERTERS OPERATING WITH A VARIABLE SWITCHING FREQUENCY
Granted: August 22, 2024
Application Number:
20240283352
Controlling power factor correction (PFC) in a flyback converter is described. In one embodiment, an apparatus includes a flyback converter configured to operate with a variable switching frequency. The flyback converter includes a signal transformer, a primary side including a primary-side controller coupled to the signal transformer, and a secondary side including a secondary-side controller coupled to the signal transformer. The secondary-side controller is configured at least to…
Multipurpose Electric Field Shield for Wireless Power Transfer Systems
Granted: August 22, 2024
Application Number:
20240283299
A wireless power transfer system is disclosed. The system includes a wireless power transmitter including a transmitter coil and a transmitter electric field shield disposed over the transmitter coil. The transmitter electric field shield includes a first printed circuit board (PCB) and a second PCB. Each of the first and second PCBs includes a number of apertures. The apertures of the first PCB do not overlap with the apertures of the second PCB. The system further includes a wireless…
POWER CONVERTER CURRENT SENSE FAULT DETECTION
Granted: August 22, 2024
Application Number:
20240280645
One or more computing devices, systems, and/or methods are provided. In an example of the techniques presented herein, a method of operating a Universal Serial Bus Power Delivery (USB-PD) power converter is provided. The method includes generating a pulse width modulated (PWM) signal for controlling the power converter. An output current signal for the power converter is determined. The output current signal corresponds to an output current across an external sense resistor coupled in an…
