Patent application number | Description | Published |
20100141389 | RFID TRANSPONDER WITH IMPROVED WAKE PATTERN DETECTION AND METHOD - An RFID transponder is provided which includes an automatic gain control (AGC) stage for amplifying a radio frequency (RF) signal and for providing an amplified RF signal. The AGC stage has a control signal indicating an increase of the amplitude of the RF signal. A demodulator is coupled to receive the amplified RF signal for demodulating the amplified RF signal. The demodulator provides a data signal. A burst detector is coupled to receive the control signal of the AGC stage and adapted to provide a start signal in response to a change of the control signal. A wake pattern detector is coupled to receive the data signal and the start signal. The wake pattern detector is adapted to detect a predefined wake pattern in the data signal after having received the start signal and to issue a wake signal if the predefined wake pattern is detected for switching the RFID transponder from a first operating mode into a second operating mode having higher power consumption than the first operating mode. | 06-10-2010 |
20100290368 | HALF-DUPLEX RFID TRANSPONDER AND A METHOD OF OPERATING A HALF-DUPLEX RFID TRANSPONDER - A half-duplex RFID transponder with an integrated three-dimensional front-end circuit which includes three LC resonant circuits arranged in a three-dimensional configuration. Each LC resonant circuit is coupled to a different one of three storage capacitors which are charged during a capacitor charging phase by energy in an RF signal received by the associated LC resonant circuit. The front-end circuit includes three receiver channels and each receiver channel is associated to a different one of the three LC resonant circuits. A channel selector is adapted to detect, which one of the three storage capacitors is first charged to a threshold voltage, to select the receiver channel associated to the LC resonant circuit which is coupled to the storage capacitor which is first charged and to deactivate the two other receiver channels. A method of operating a half-duplex RFID transponder with three LC resonant circuits arranged in a three-dimensional configuration with each LC resonant circuit coupled to a different storage capacitor which is charged during a capacitor charging phase by energy in an RF signal received by the associated LC resonant circuit. Three receiver channels are associated to the three LC resonant circuits. The method includes monitoring the charge level of each of the three storage capacitors, detecting which storage capacitor is first charged to a threshold voltage, selecting the receiver channel associated to the first charged storage capacitor and deactivating the two other receiver channels. | 11-18-2010 |
20120286927 | Wake Channel Indication for Passive Entry System - A passive entry system receives an electromagnetic interrogation signal transmitted from an interrogation antenna to a remote transponder, wherein the interrogation signal includes a wakeup pattern data sequence. A plurality of channel signals is generated within the transponder from a corresponding plurality of antennas in response to the electromagnetic interrogation signal. Bit detection is performed on each of the plurality of channel signals to detect the wakeup pattern sequence. A received signal strength indicator (RSSI) of the interrogation signal is determined using the plurality of channel signals, wherein only channel signals on which a valid wakeup pattern sequence is detected are used for determining the RSSI. A wakeup signal is asserted to wake up a processing module in the remote transponder only when the wakeup pattern sequence is detected on at least one of the plurality of channel signals. | 11-15-2012 |
20130107762 | ELECTRONIC DEVICE, METHOD AND SYSTEM FOR HALF DUPLEX DATA TRANSMISSION | 05-02-2013 |
20150326419 | RADIO SYSTEM FOR SIMULTANEOUS MULTI-CHANNEL RECEPTION - A radio communication system includes a frequency synthesizer, a radio frequency (RF) front end, a first receiver, and a second receiver. The frequency synthesizer is configured to generate an oscillation signal, and the RF front end is configured to receive a detected RF signal and apply the oscillation signal to downconvert the RF signal to an intermediate frequency (IF) signal. More particularly, the first receiver, coupled to the RF front end, is configured to extract, from the IF signal, information wirelessly transmitted by a first RF transmitter on a first frequency channel. The second receiver, coupled to the RF front end, is configured to extract, from the IF signal concurrently with the extraction of signal information by the first receiver, information wirelessly transmitted by a second RF transmitter on a second frequency channel. | 11-12-2015 |
20160042579 | MULTIPLE-BAND IDENTIFICATION AND RANGING - A long-range power-efficient multiple-band identification system and method includes, for example, a base-station control module and paired electronic key fob. The base-station control module and paired electronic key fob is arranged to provide a UHF (ultra-high frequency) wake transmitter for transmitting a wakeup signal in a UHF frequency range to the paired electronic key. When in range, the electronic key is awakened by the wakeup signal and in response transmits an acknowledgment reply to the base-station control module. After receiving the acknowledgment, the base-station control module transmits a relatively high power localization signal for determining an electronic key location. | 02-11-2016 |
20160127116 | ELECTRONIC DEVICE, METHOD AND SYSTEM FOR HALF DUPLEX DATA TRANSMISSION - An electronic device and method for half duplex data transmission in a long range keyless entry and go system, and more specifically to an RFID transponder, a corresponding read/write (R/W) unit and methods for operating the RFID transponder and the R/W-unit. There is a first coil, a second coil and a third coil, being arranged as a three-dimensional antenna, a first capacitor, a second capacitor and a third capacitor couplable in parallel to the first coil, the second coil and the third coil, respectively, for selectively forming a first, a second and a third parallel-resonant circuit for receiving radio signals, a series-resonant circuit for transmitting radio signals and a control stage configured to either use one of the first, second or third parallel-resonant circuits for receiving radio signals or the series-resonant circuit for transmitting signals. | 05-05-2016 |
Patent application number | Description | Published |
20090322564 | Method and traffic control system for controlling traffic flows including hazardous material or abnormal load transportation units - Disclosed are a method and a traffic routing system for controlling traffic flows in which hazardous or special material is transported through safety-critical traffic zones such as tunnels, bridges or locks. In the method and traffic routing system, safety-relevant data is read with the help of a signal transmitter disposed on the transported hazardous or special material and is transmitted to a central computer unit when said vehicle passes reading devices located in the safety-critical traffic zone. The central computer unit determines a safety risk in the safety-critical traffic zone on the basis of the safety-relevant data of all transported hazardous or special material located in the safety-critical traffic zone and sets traffic routing signals. | 12-31-2009 |
20100039231 | Arrangement and Method for Data Acquisition - The invention relates to an arrangement and the associated method for the acquisition of data between at least one detection unit E | 02-18-2010 |
20100135369 | INTERACTION BETWEEN AN INPUT DEVICE AND A TERMINAL DEVICE - An input device interacts with a terminal device and/or controls the terminal device of a communication network. The terminal device serves to receive and to transmit a content data stream which represents a chat transmission. In addition, the terminal device functions to transmit messages created by the input device to a processing unit of the communication network. The input device has at least one sensor for determining a physical state of an operator of the input device. The input device is furthermore designed to transmit a value representing the physical state to the terminal and/or the processing unit. | 06-03-2010 |
20100295662 | VERIFICATION UNIT FOR CONDUCTING A TIME-RELATED VALIDITY CHECK - The present embodiments relate to checking a validity of a time-limited status of a device. In one embodiment, a checking unit includes an RFID reader and a control unit. The control unit is embodied for performing a validity check that relates to a time period and is based on time information read by the RFID reader from an RFID label and conveyed to the control unit. | 11-25-2010 |
20110294422 | Method and apparatuses for transmitting information by means of far field and short range communication - The present invention relates to a method and apparatuses for transmitting information. More particularly, the present invention relates to a method and apparatuses for transmitting information comprising first and second information to and/or from a mobile terminal in environments where different wireless access technologies are available. In accordance with the inventive method, the first information is transmitted by means of far field communication to and/or from a base station of a first communications network, and the second information is transmitted by means of short range communication to and/or from a short range communication device which is communicatively coupled to a second communications network. The second communications network is communicatively coupled to the first communications network. | 12-01-2011 |
20120234078 | SENSOR DEVICE - A sensor device determines an amount of liquid contained or stored in an object to be tested. The sensor device contains at least one heating element and at least one humidity sensor. When operated, the sensor device defines at least one volume which can be sealed off by placing the device on the surface of the object to be tested. The heating element is configured to heat at least part of a surface of the object delimiting the volume, the humidity sensor measuring the humidity in the interior of the volume. | 09-20-2012 |
20150126827 | COVERING CAP AND MEASURING DEVICE - A covering cap, in particular for placing on a skin analyzer, contains an end wall bounded by a circumferential edge, and a circumferential wall adjoining the circumferential edge of the end wall. At least one part of the covering cap has a thickness that is less than a thickness of the circumferential wall in a portion of the circumferential wall that lies in the region or end of the circumferential wall remote from the end wall. The end wall is of a gas-permeable configuration. | 05-07-2015 |