191957 ⎘
Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the sensing being preceded by at least one preliminary step the step consisting of dynamically tuning the resonant circuit of the interrogation device that is emitting the interrogation signal, e.g. for impedance matching inside of the interrogation device
ACTIVATABLE RF TAGS WITH VARIABLE READ RANGE
#2DEVICES FOR INTERCEPTING RADIO FIELD COMMUNICATIONS FOR CONSUMER USE, SYSTEMS CONTAINING THE SAME, AND METHODS OF USE THEREOF
#3SYSTEMS AND METHODS FOR PERFORMING TRANSACTIONS
#4Systems and methods for performing transactions
#5Presence detection using RFID tags and readers
#6PRESSURE BASED WIRELESS SENSOR AND APPLICATIONS THEREOF
#7Systems and methods for performing payment transactions
#8Tag system with a modulator of an antenna modulator and methods of use
#9Method for sensing environmental conditions
#10Reading of an electromagnetic resonant structure by a separated transmitter and receiver
#11Systems and methods for performing payment transactions
#12Wearable payment device with tunable antenna
#13Method for compensating for a phase shift between the signal emitted by an object and that received from a reader equipped with an envelope detector and corresponding object
#14ANTENNA USAGE AS A USER INTERFACE
#15Pressure based wireless sensor and applications thereof
#16Method and apparatus for sensing environmental conditions
#17Method for compensating for a phase shift between the signal emitted by an object and that received from a reader equipped with an envelope detector and corresponding object
#18PRESSURE BASED WIRELESS SENSOR AND APPLICATIONS THEREOF
#19Tag reader receiver with high-Q antenna
#20CARD DETECTION FOR A NFC (NEAR FIELD COMMUNICATION) READER SYSTEM
#21Method of harvesting radio-frequency energy, corresponding circuit and device
#22Method and apparatus or sensing environmental conditions
#23Near field communication devices, systems, and methods using Q factor adjustments
#24Information collection system
#25Method and apparatus for sensing environmental parameters using wireless sensor(s)
#26Pressure based wireless sensor and applications thereof
#27Tuning a NFC antenna of a device
#28NFC reader with remote antenna
#29Protection of an NFC router against overvoltage
#30Radio frequency identification (RFID) tag(s) and sensor(s)
#31Pressure based wireless sensor and applications thereof
#32Electronic tuning system
#33METHOD AND APPARATUS FOR SENSING ENVIRONMENTAL PARAMETERS USING WIRELESS SENSOR(S)
#34Method and apparatus for sensing an environmental condition during frequency hopping
#35Method and apparatus for sensing environmental conditions
#36High-Q and over-coupled near-field RFID reader antenna for improved tag read range
#37Electronic tuning system
#38Near field communication devices, systems, and methods using Q factor adjustments
#39Method and apparatus for sensing environmental parameters using wireless sensor(s)
#40NFC or RFID device RF detuning detection and driver output power regulation
#41Card reader communication method
#42Increasing backscatter level for RFID chip
#43Pressure based wireless sensor and applications thereof
#44Tuning a NFC antenna of a device
#45Tuning a NFC antenna of a device
#46Radio frequency identification (RFID) tag(s) and sensor(s)
#47Method for determining existence of wideband impedance matching circuit in a wireless IC device system
#48Card reader communication method
#49Implant telemetry with dynamic tuning
#50Autonomous tuning method to improve radio frequency performance
#51Near field communication devices, systems, and methods using Q factor adjustments
#52NFC device and communication method
#53Systems and methods to locate an object
#54Wireless IC device system and method of determining authenticity of wireless IC device
#55Activatable RF tags with variable read range
#56RFID tag clock frequency reduction during tuning
#57RFID tag clock frequency reduction during tuning
#58RFID tag clock frequency reduction during tuning
#59Point of sale (POS) device responsive to detected interference with antenna
#60Tuning a NFC antenna of a device
#61RFID tag clock frequency reduction during tuning
#623D packaging of power amplifier dice apparatus and articles of manufacture