There is provided a power conditioning circuit including positive and negative power input nodes. An inductor includes a first terminal connected to a positive power input node and a second terminal connected to a positive power output node, the inductor allowing the voltage at the positive power output node to be modulated by data that is sent through a communication interface. A first node is present between the second terminal of the inductor and the positive power output node, and a clamping circuit is connected at the first node to a second node. The clamping circuit is configured to clamp a voltage increase across the inductor to less than a maximum increase. The second node is configured to be continuously held at a voltage higher than the voltage of the first terminal of the inductor.

The present disclosure relates to an information gathering method. The information gathering method includes identifying a location of a package, the location associated with one or more location-based restrictions on collecting data. The information gathering method also includes restricting access to sensor-collectable data associated with the package in accordance with the one or more location-based restrictions.

Systems and methods for clock drift estimation are disclosed. For example, sensor data may be received that indicates occurrence of one or more environmental conditions that have been predetermined to impact clock crystal frequencies of a device clock. Predictive filters and/or machine learning models may be utilized to determine the impact of the environmental condition on clock drift, and clock drift values may be generated based at least in part on the sensor data. Corrections to content processing, such as the changing of resampling rates, may be applied to compensate for the clock drift value change, which may allow for the time-synchronous output of content as between two or more devices, including while the environmental condition is present.

The present invention provides a signal transmission method for data transmission through an audio transmission interface. The method includes: receiving audio data and first control data that is generated based on at least one first human-machine interaction; packing the audio data into at least one first data unit; packing the first control data into at least one second data unit; and transmitting a bit stream including the first data unit and the second data unit at a transmission rate that is higher than a sampling rate of the audio data.

A handle for a motor vehicle opening, equipped with an ultra-high-frequency antenna having a device for transmitting and receiving a signal at a predetermined wavelength, with a device for detecting the approach of and/or contact by a user, with a printed circuit board and with at least one connecting cable intended for electrically connecting the printed circuit board to an electronic control unit. The at least one connecting cable has a section either projecting from the remainder of the at least one connecting cable or surrounded by an electromagnetically insulating coating coaxial with the at least one connecting cable, a length of the projecting section or a length of the coaxial coating being equal to one quarter of said predetermined wavelength with a tolerance of +/−20%.

Embodiments of a wideband buffer circuit and a wideband communication circuit that uses the wideband buffer circuit are disclosed. In an embodiment, the wideband buffer circuit includes first and second transistors deployed as a voltage buffer and connected to first and second input terminals, first and second parallel resistor-capacitor pairs connected to the first and second transistors, first and second cross-coupled transistors connected to the first and second parallel resistor-capacitor pairs and connected to first and second output terminals, and first and second current sources connected to the first and second cross-coupled transistors and a fixed voltage. The first transistor, the first parallel resistor-capacitor pair, the first cross-coupled transistor and the first current source are connected in series. Similarly, the second transistor, the second parallel resistor-capacitor pair, the second cross-coupled transistor and the second current source are connected in series.

A method of communicating between a person within a target vehicle and a law-enforcement person includes establishing a connection between a law-enforcement transceiver and a target vehicle transceiver using a protocol and encoding an audio signal into an encoded audio signal by the law-enforcement transceiver using the protocol, The encoded audio signal is transmitted from the law-enforcement transceiver and received by the target vehicle transceiver where the encoded audio signal is accepted by the target vehicle transceiver through a feature in the protocol, the feature in the protocol allowing limited access to an audio transducer of the target vehicle, the encoded audio signal is decoded back into the audio signal by the target vehicle transducer and the audio signal is reproduced on the audio transducer within the target vehicle.

A physical access control (PAC) system configured to perform a two-factor authentication prior to granting access to a secure area. The PAC system includes an access point device configured to perform facial recognition on a person proximate to the access point device, and perform wireless handshake with a mobile device associated with the person prior to granting or denying entry to the secure area.

The present disclosure relates to a transceiver (100) comprising a first and second terminal, a signal generation unit a signal generation unit (110) for generating a differential output voltage (Vout) between the terminals, a sensor unit (112) configured to measure an electric current (Iout) when flowing through one of the terminals, and a control unit (114) for controlling the signal generation unit, wherein the control unit is configured to control the signal generation unit during a calibration phase to generate a predetermined differential output voltage reference pattern (140), wherein the sensor unit is configured to measure a calibration current unit during the calibration phase, and wherein the control unit is configured to calibrate the signal generation unit depending on the calibration current. The present disclosure also relates to a method for the transceiver.

According to certain embodiments, an electronic device comprises a communication circuit, a memory including a buffer configured to store audio data received from an external electronic device via the communication circuit, an audio output circuit, and a processor electrically connected to the communication circuit, the memory, and the audio output circuit.