ULTRA-LOW POWER INSTANT LOCK PHASE LOCK LOOP (PLL)
Granted: November 14, 2024
Application Number:
20240380405
Systems and methods reduce a locking time of a type-II all-digital phase-locked loop (ADPLL) circuit by performing steps that comprise receiving a reference signal having a reference frequency and setting a digitally controlled oscillator (DCO) to a target frequency greater than the reference frequency. The DCO generates an output signal that is used to generate a feedback signal. A time-to-digital converter is used to determine an initial phase difference between the reference signal…
SYSTEMS AND METHODS FOR PERFORMING IN-FLIGHT COMPUTATIONS
Granted: November 7, 2024
Application Number:
20240370076
In-flight operations in an inbound data path from a source memory to a convolution hardware circuit increase computational throughput when performing convolution calculations, such as pooling and element-wise operations. Various operations may be performed in-line within an outbound data path to a target memory. Advantageously, this drastically reduces extraneous memory access and associated read-write operations, thereby, significantly reducing overall power consumption in a computing…
TRANSMITTING CLOCK REFERENCE OVER REVERSE CHANNEL IN A BIDIRECTIONAL SERIAL LINK
Granted: October 17, 2024
Application Number:
20240348420
A clock recovery circuit includes a clock detector configured to receive a serial data stream from a remote device over a reverse channel, wherein the serial data stream includes clock reference data, reverse channel data, or a combination of the clock reference data and the reverse channel data, and the clock detector configured to output a clock detect signal in response to detecting the clock reference data in the serial data stream; a phase lock loop including a first detector…
SYSTEM AND METHOD FOR DUAL-PORT COMMUNICATION AND POWER DELIVERY
Granted: August 1, 2024
Application Number:
20240259231
Described herein are embodiments for dual-port communication and power delivery for one-wire applications. Embodiments of one-wire bridge devices are disclosed to provide a dual-port link for two one-wire masters to communicate with one another in a multi-voltage system while intermittently allowing charging voltage. The configuration may be used to set a bidirectional pass through mode that allows level shifted fast logic signals to pass through the two one-wire links. A timer may also…
HIGH-CURRENT, BIDIRECTIONAL PROTECTION CIRCUITS AND METHODS
Granted: August 1, 2024
Application Number:
20240258792
Systems and methods herein use a sensing circuit to detect an overvoltage at a voltage node as a drain current. A current-mode comparator converts the detected current into a control signal, which is provided to a control circuit. The control circuit uses the control signal cut of a bias current to turn off switches in a protection circuit to create a high-impedance electrical path between the voltage node and the to-be-protected voltage node.
SOLENOID SYSTEM WITH POSITION AND TEMPERATURE DETECTION
Granted: July 11, 2024
Application Number:
20240230763
A solenoid system and method can include: providing an energizing voltage to a coil of a solenoid; providing an AC signal superimposed onto the energizing voltage; detecting current through the coil including an AC current amplitude induced by the AC signal and including a DC offset current amplitude; determining the AC current amplitude is a low AC current amplitude based on an armature within the solenoid being in a retracted position or determining the AC current amplitude is a high…
CURRENT BASED RESONANT FREQUENCY TRACKING SYSTEM
Granted: January 25, 2024
Application Number:
20240030843
A current based resonant frequency tracking system and methods can include: providing a haptic pattern with a processor, the haptic pattern including both a haptic pattern start time and a haptic pattern stop time; driving a linear resonant actuator according to the haptic pattern with an amplifier coupled to the processor, and the amplifier having an output coupled to the linear resonant actuator; detecting a current sense signal having a back electromotive force current after the…
CURRENT BASED RESONANT FREQUENCY TRACKING SYSTEM
Granted: January 25, 2024
Application Number:
20240030843
A current based resonant frequency tracking system and methods can include: providing a haptic pattern with a processor, the haptic pattern including both a haptic pattern start time and a haptic pattern stop time; driving a linear resonant actuator according to the haptic pattern with an amplifier coupled to the processor, and the amplifier having an output coupled to the linear resonant actuator; detecting a current sense signal having a back electromotive force current after the…
AUTO-CALIBRATION SYSTEMS AND METHODS FOR REDUCING AMPLIFER OFFSET
Granted: December 21, 2023
Application Number:
20230412133
Systems and methods reduce unwanted effects caused by mismatch in amplifier circuits having components that are trimmable during and post-production to minimize DC offset. Various embodiments of the invention trim out amplifier mismatch by determining trim codes for two or more phases of operation of an amplifier circuit and use those trim codes to determine a final trim code for use in regular operation.
Secure authentication based on physically unclonable functions
Granted: November 2, 2023
Application Number:
20230353550
The invention relates to an electronic device, and more particularly, to systems, devices and methods of authenticating the electronic device using a challenge-response process that is based on a physically unclonable function (PUF). The electronic device comprises a PUF element, a processor and a communication interface. The PUF element generates an input signal based on at least one PUF that has unique physical features affected by manufacturing variability. A challenge-response…
SYSTEMS AND METHODS FOR IMPROVING TRANSIENT RESPONSE IN H-BRIDGE BUCK-BOOST DRIVERS USING INTEGRATED MATRIX MANAGER
Granted: October 26, 2023
Application Number:
20230345602
Presented are systems and methods for controlling a compensation circuit. In embodiments, a detection circuit receives a set of control signals that have been generated by a control circuit to drive a set of light emitting diode (LED) switches. The switches control a set of LEDs driven by a DC-DC converter that is coupled to a feedback loop to which the compensation circuit is removably coupled. In embodiments, the detection circuit determines whether the status of an LED is about to…
SYSTEMS AND METHODS FOR IMPROVING TRANSIENT RESPONSE IN H-BRIDGE BUCK-BOOST DRIVERS
Granted: October 26, 2023
Application Number:
20230344347
Presented are systems and methods for improving transient response in buck-boost circuits avoid circuit instabilities in both boost mode and buck mode. In embodiments, this is accomplished when, in response to determining that the circuit operates in buck mode, a compensation circuit is adjusted to operate at a first bandwidth. In response to determining that the circuit operates in boost mode, the compensation circuit may then be adjusted to decrease a boost mode crossover frequency and…
SYSTEMS AND METHODS FOR IMPROVING TRANSIENT RESPONSE IN SLEW-RATE LIMITED H-BRIDGE BUCK-BOOST DRIVERS
Granted: October 26, 2023
Application Number:
20230344340
Presented are average current mode control systems and methods for driving a load with a constant current. In embodiments, this is accomplished when, in response to a zero-current detection circuit detecting a zero current condition in the load current, a compensation circuit is disconnected from a first error amplifier to enable that error amplifier to provide a first voltage to a second error amplifier. The second error amplifier increases a charging current in a capacitor to reduce a…
ULTRA-LOW POWER INSTANT LOCK PHASE LOCK LOOP (PLL)
Granted: October 12, 2023
Application Number:
20230327676
Systems and methods reduce a locking time of a type-II all-digital phase-locked loop (ADPLL) circuit by performing steps that comprise receiving a reference signal having a reference frequency and setting a digitally controlled oscillator (DCO) to a target frequency greater than the reference frequency. The DCO generates an output signal that is used to generate a feedback signal. A time-to-digital converter is used to determine an initial phase difference between the reference signal…
POWER CONTROL SYSTEMS AND METHODS FOR MACHINE LEARNING COMPUTING RESOURCES
Granted: October 12, 2023
Application Number:
20230324980
Described are context-aware low-power systems and methods that reduce power consumption in compute circuits such as commonly available machine learning hardware accelerators that carry out a large number of arithmetic operations when performing convolution operations and related computations. Various embodiments exploit the fact that power demand for a series of computation steps and many other functions a hardware accelerator performs is highly deterministic, thus, allowing for energy…
MEASUREMENT SYSTEM WITH CONTROLLED PRESSURE RAMP
Granted: September 21, 2023
Application Number:
20230293029
A measurement system and method of manufacture can include: a pressure resistant structure; a pressure inducer coupled to the pressure resistant structure, the pressure inducer having an engaged configuration, the engaged configuration of the pressure inducer increasing pressure exerted on a portion of a user in contact with the pressure resistant structure; a light source coupled to the pressure resistant structure; an optical sensor coupled to the pressure resistant structure and…
MEASUREMENT SYSTEM WITH CONTROLLED PRESSURE RAMP
Granted: September 21, 2023
Application Number:
20230293029
A measurement system and method of manufacture can include: a pressure resistant structure; a pressure inducer coupled to the pressure resistant structure, the pressure inducer having an engaged configuration, the engaged configuration of the pressure inducer increasing pressure exerted on a portion of a user in contact with the pressure resistant structure; a light source coupled to the pressure resistant structure; an optical sensor coupled to the pressure resistant structure and…
SYSTEMS AND METHODS TO CABLE SHIELD FAULT DETECTION AND PROTECTION
Granted: August 31, 2023
Application Number:
20230275423
Described are system and method embodiments for establishing a weak ground path, comprising: disabling a first ground path for a shield pin of a cable connection interface, the first ground path including a first switch; enabling a second ground path for the shield pin, the second ground path comprises a second switch, and the second ground path having a higher resistance than the first ground path; determining a connection of a device to the cable connection interface with the second…
H-BRIDGE BUCK-BOOST FOR ADAPTIVE DRIVING BEAM HEADLAMPS
Granted: August 3, 2023
Application Number:
20230247741
Described are light emitting diode (LED) and non-LED driver systems and methods that reduce current overshoot and, deadtime, and other undesirable effects in applications such as adaptive driving beam headlamp application that negatively impact circuit parameters, including efficiency. In certain embodiments, this is accomplished by using a current clamp circuit that is controlled such as to limit an overshoot in load current, e.g., when a number of LEDs that are turned on changes.
SYSTEMS AND METHODS FOR ENERGY-EFFICIENT DATA PROCESSING
Granted: July 13, 2023
Application Number:
20230222315
An energy-efficient sequencer comprising inline multipliers and adders causes a read source that contains matching values to output an enable signal to enable a data item prior to using a multiplier to multiply the data item with a weight to obtain a product for use in a matrix-multiplication in hardware. A second enable signal causes the output to be written to the data item.