Call signal conversion apparatus for elevator system

Call signal conversion apparatus for elevator system

Capacitive-type displacement and pressure sensitive transducer

Capacitively powered portable communication device and...

Card reader/writer and communication method of card reader...

Cart-based visibility system

Centralized transponder arbitration

Chipless RFID tag and method for communicating with the RFID...

Circuit arrangement and method for increasing the functional...

Circuit arrangement and method for phase modulation in a...

Circuit arrangement for signal detection having current...

Circuit arrangement with simplified input circuit for phase...

Communication controller for an active transponder

Communication controller for an active transponder

Communication method and apparatus improvements

Communication method in RFID or remote sensor systems

Communication system, and endpoint device and interrogator

Communication system, and interrogator and transponder for...

Communication system, and interrogator and transponder of...

Communications control in a security system