A charging system comprising: a charging apparatus; and at least one guiding apparatus, comprising at least one light emitting device provided in at least one target apparatus. The charging apparatus moves to a charging location according a light emitting state of the light emitting device, to charge the target apparatus. The charging apparatus further receives battery power information from the target apparatus via wireless communication.

A device, system, and method locates user devices in enterprises. The method performed by an enterprise server of an enterprise includes receiving contact data from an emergency services device, the contact data comprising location related data of a user device and identification data of the user device. The method includes determining if a general location data of the user device is associated with an area data of the enterprise as a function of the location related data. The method includes determining a precise location data of the user device within the area data of the enterprise based on the contact data.

Data frames, including bursts of an active load modulation (ALM) carrier signal generated from a modulation of an underlying carrier, are transmitted from an object to a reader. Synchronizing a reader carrier signal and the ALM carrier signal includes: prior to transmission of each data frame and between some of the bursts of the ALM carrier signal of each data frame, performing a closed-loop control of an output signal of a main oscillator onto a phase and a frequency of the reader carrier signal; estimating a ratio between a frequency of the output signal of the main oscillator and a frequency of a reference signal produced by a reference oscillator; and during each burst of the ALM carrier signal of each data frame, performing a closed-loop control in frequency only of the output signal of the main oscillator onto the reference frequency of the reference signal corrected by the ratio.

A fixing element for electrical devices, wherein at least one electrical device can be fixed to the fixing element, has at least one coupler, which forms at least one coupling to the at least one electrical device fixed to the fixing element, via which coupling electrical energy and/or data can be transmitted to the at least one electrical device, wherein the coupling is a capacitive and/or inductive coupling. In addition, equipment includes such a fixing element and a least one electrical device, which is fixed to the electrical element.

An information terminal includes: a first communication unit that performs wireless communication with a wireless base station connected to a wide area network; a second communication unit that performs communication by a communication scheme different from the first communication unit; and a controller that: controls the second communication unit to receive first management information from a power management system that is installed in a facility and includes a storage battery, the first management information including information relating to the storage battery; and controls the first communication unit to transmit second management information generated based on the first management information received, to a server outside the facility as a destination, the server being connected to the wide area network.

A contactless communication device includes a near field communication (NFC) module for generating an electromagnetic carrier signal and modulating the carrier signal according to data to be transmitted, and an antenna coupled to and driven by said NFC module with the modulated carrier signal. The device includes an RF front end coupled between said NFC module and said antenna and further includes a detection module coupled to said NFC module for detecting an end of a PauseA of an incoming RF signal by monitoring an amplitude of a digital output signal derived from the incoming RF signal. The detection module detects the PauseA in said digital output signal by comparing the amplitude of said output digital signal to a first level. The detection module further detects the end of the PauseA in said digital output signal by comparing the amplitude of said digital output signal to a second level.

A wireless power transmitter includes a power conversion unit configured to transfer wireless power to a wireless power receiver by forming magnetic coupling with the wireless power receiver; and a communication/control unit configured to communicate with the wireless power receiver to control transmission of the wireless power and to perform transmission or reception of data, wherein the communication/control unit further configured to set a target power level based on an operation condition, receive, from the wireless power receiver, a received power packet (RPP) which informs a value of the wireless power received by the wireless power receiver, transmit a bit pattern to the wireless power receiver in response to the RPP, the bit pattern requesting communication initiated by the wireless power transmitter, and receive, from the wireless power receiver, a response packet to allow the communication initiated by the wireless power transmitter.

A method of communicating between a first electronic communication device of a plurality of electronic communication devices and a wireless communication initiating device for reading the first electronic communication device. The method comprises receiving, at the first electronic communication device, a communication signal from the wireless communication initiating device and determining a first characteristic value relating to the communication signal. The method further comprises receiving at least a second characteristic value relating to a communication signal received by at least a second electronic communication device that is connected to the first electronic communication device and initiating communication with a reading device based on the first and second value.

A system for tracking, assigning, and issuing equipment to security agency personnel (e.g., officers, administration, command, armorer). An armorer is assigned the task of tracking, assigning, and issuing equipment. Equipment may be assigned to a particular individual officer. The equipment provided to and used by officers may capture (e.g. gather, produce) information (e.g. audiovisual information, data logs, recordings). Equipment may provide information to the armorer via near field communication (NFC) circuits. The information captured may be used alone or in combination with other information received and stored by an evidence management system. The information captured by equipment assigned to a particular individual may be associated with that individual. An armorer may use information supplied by equipment, evidence management system, officers, or other sources to assist in the assignment process.

A chip includes a first pin coupled to a signal line and a controller to detect a state of the signal line using the first pin. The controller controls output of first power to the signal line through the first pin based on a first state of the signal line and prevents output of the first power to the signal line through the first pin based on a second state of the signal line. The signal line may be coupled to provide second power from a power source to a data storage device.