Abstract:
Systems and methods of extending battery life in inventory control devices are disclosed. A passive receiver configured to wirelessly receive an initiation signal having an associated energy field from a remote control system and to output a mode change signal is provided. The passive receiver is configured to be powered by an energy field associated with the initiation signal. A functional module coupled to the passive receiver and configured to be powered by a self-contained power source when the functional module is in an active mode is provided. The functional module is further configured to receive the mode change signal from the passive receiver and to change from an inactive mode to the active mode. The functional module draws more power from the power source in the active mode than in the inactive mode.
Abstract:
A field transmitter includes field device circuitry configured to measure or control a process variable. A first process control loop terminal is configured to couple to a two-wire process control loop which carries a loop current. A second process control loop terminal configured to couple to the two-wire process control loop. A switching regulator has an input and an output. The output is coupled to the transmitter circuitry and arranged to provide power to the transmitter circuitry. A variable voltage source having an input electrically coupled to the first process control loop terminal, and a voltage output coupled to the input of the switching regulator and a control input. The voltage output is a function of the control input.
Abstract:
A receiving module, checking module, and a controller are provided. The receiving module is configured for receiving external wireless signals. The checking module is configured for checking whether a current wireless signal comprises checking codes of a control signal which is configured for controlling the electronic device and, if yes, generating an activation signal. The controller is configured for switching the electronic device into a power-saving mode if no external wireless signal is received after a predetermined time period and switching the electronic device into a normal mode if the activation signal is received.
Abstract:
A system for measuring a plurality of operating parameters of an object in a harsh environment is provided. The system includes a first energy transceiver system configured to transceive energy signals. The system also includes a transcieved modulant coupled to the first energy transceiver system. The system further includes a second energy transceiver system at least partially disposed on the object and capable of being interrogated by the first energy transceiver system. The second energy transceiver system still further includes a sensing system. The system also includes a processor coupled to the first energy transceiver system. The processor is configured to determine of the plurality of the operating parameters of the object in the harsh environment based upon the transceived modulant.
Abstract:
The invention describes a method of actuating a switch (S) between a device (Di) to be controlled and a power supply (P), which method comprises the steps of generating a first electrical signal (14) in a remote control unit (10) and converting the first electrical signal (14) into electromagnetic radiation (EM) by means of a first transmitting antenna (Ti) of the remote control unit (10). A first detecting antenna (Ri) of a remote control interface module (20) of the device (Di) to be controlled detects the electromagnetic radiation (EM) to obtain a second electrical signal (24), which is passively converted into a switch actuating signal (25). The switch actuating signal (25) is actuated to switch the device (Di) to be controlled between an operating mode in which current is drawn from the power supply (P) by the device (Di) during operation, and an inactive mode in which the device (Di) is completely disconnected from the power supply (P) so that no current is drawn by the device (Di). The invention further describes a system (1) for actuating a switch (S) between a device (Di) to be controlled and a power supply (P). The invention also describes a remote control interface module (20) and a remote control unit (10).
Abstract:
A remotely controllable electronic appliance has a radio frequency energy converter that receives a radio frequency energy from a remote controller and converts the radio frequency energy to electrical energy, where the electrical energy from the energy converter is used to supply power to receive a turn-on code. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
Abstract:
In certain embodiments, a remotely controllable television has an energy converter that receives light energy from a laser in a remote controller and converts the light energy to electrical energy. A remote control code interpreter that is receives a turn-on code from the remote controller. The electrical energy from the energy converter is used to supply power to the remote control code interpreter. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
Abstract:
An icon/text interface remote controller and particularly a remote controller incorporating with a display device which displays an icon/text menu interface to allow users to make selection mainly includes a touch panel, a button switch, a power supply, a power control circuit and a wireless emission circuit that incorporate with the display device. Users can see options of the icon/text menu on the display device to do remote control operation in a more user-friendly fashion.
Abstract:
A field transmitter includes field device circuitry configured to measure or control a process variable. A first process control loop terminal is configured to couple to a two-wire process control loop which carries a loop current. A second process control loop terminal configured to couple to the two-wire process control loop. A switching regulator has an input and an output. The output is coupled to the transmitter circuitry and arranged to provide power to the transmitter circuitry. A variable voltage source having an input electrically coupled to the first process control loop terminal, and a voltage output coupled to the input of the switching regulator and a control input. The voltage output is a function of the control input.
Abstract:
System including at least one master unit and a plurality of slave units, wherein the master unit and the slave units have means for performing communication via radio frequency channels. The at least one master unit including means for transmitting control signals to the slave units, and the slave units are each provided with a unique address and are each associated with a controllable device. The at least one master unit includes means for executing a sequential transmission of control signals to at least one of the slave units upon activation of a function control key.