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Josef Preishuber-Pfluegl

Josef Preishuber-Pfluegl, Klangenfurt AT

Patent application number	Description	Published
20110006885	RFID INTERROGATOR RETRANSMITTING COMMAND DEPENDING ON COLLISION SITUATION AND CONTROL METHOD THEREOF - As an RFID interrogator transmitting a command depending on a collision situation and a control method thereof, the RFID interrogator includes a collision diagnosis unit that analyzes data of a received signal received during a receive time in correspondence with a transmitted signal from an RF communication unit that can transmit and receive signal to and from one or more tag, verifies whether or not a collision occurs in the received signal, and diagnoses a collision type depending on an analysis result of the data of the received signal; and a collision resolution unit that can retransmit a command to the tag through the RF communication unit depending on the collision situation on the basis of whether or not occurrence of the collision or not and the collision type that are received from the collision diagnosis unit.	01-13-2011
20110018691	RFID INTERROGATOR HAVING COLLISION TYPE IDENTIFICATION FUNCTION AND CONTROL METHOD THEREOF - Disclosed is an RFID interrogator having a collision type identification function and a control method thereof. It verifies whether or not a collision occurs in a received signal by analyzing data of a signal received from an RF communication unit and performs a corresponding collision resolution operation by diagnosing a collision type in accordance with a collision generation means between the corresponding RFID interrogator and other interrogators or a tag. Since all types of collisions that occur between the RFID interrogator and the tag can be identified, a reason for occurrence of the collisions can be rapidly recognized to cope with the reason for the collisions.	01-27-2011

Josef Preishuber-Pfluegl, Klagenfurt AT

Patent application number	Description	Published
20080224873	APPARATUS AND METHOD FOR DETECTING WAKE-UP BURST OF ACTIVE RFID TAG - An apparatus and method for detecting a wake-up burst of an active RFID tag are provided. The apparatus and method, for detecting the wake-up burst of the active RFID tag, are capable of reducing power consumption of the RFID tag by enabling the RFID tag when a RFID reader starts to communicate.	09-18-2008
20100026467	RFID TAG - An electronic tag is configured to be responsive to a TTO or TTF protocol energizing signal from a reader, but to suspend transmission when receiving an RTF protocol communication signal from a reader. The tag typically includes a protocol detector which is operable to detect receipt of an RTF protocol communication signal and to suspend transmission when the electronic tag receives an RTF protocol communication signal from a reader.	02-04-2010
20100207736	MOBILE RFID READER AND RFID COMMUNICATION METHOD USING SHARED SYSTEM CLOCK - The present invention relates to a mobile radio frequency identification (RFID) reader and a RFID communication method using a shared system clock. According to the present invention, clock for synchronizing the mobile RFID readers can be shared without changing hardware of a conventional RHD device. Also, since the shared clock is used, a technology for preventing a collision with the readers can be easily realized in a mobile multi-reader environment.	08-19-2010
20100207737	TDMA CONTROL METHOD USED BY RFID READER VIA MOBILE PHONE BASE STATION AND MOBILE RFID READER - A time division multiple access (TDMA) control method used by a mobile radio frequency identifier (RFID) reader through a mobile phone base station and a mobile RFID reader are provided. Each mobile RFID reader occupies a frequency channel during a time slot allocated through a mobile communication base station, thereby avoiding interference between readers.	08-19-2010
20100308972	COMMUNICATION METHOD FOR RADIO FREQUENCY IDENTIFICATION - Provided is a communication method for radio frequency identification (RFID). In order to transmit a command message with respect to an RFID tag, an RFID reader generates a command message comprising a command code indicating a type of command to be delivered to the RFID tag, a response format having one or more bits for indicating a type of additional data to be added to a response message to be received from the RFID tag, and an identifier identifying the RFID tag; and transmits the command message to the RFID tag, thereby allowing the RFID tag to immediately transmit the additional data via the response message in response to the command message.	12-09-2010

Josef Preishuber-Pfluegl, Klagenfurt AU

Patent application number	Description	Published
20080224870	APPARATUS AND METHOD FOR MANAGING POWER OF RFID TAG - An apparatus and method for managing power of a radio frequency identification (RFID) tag are provided. It is possible for the apparatus for managing the power of the RFID tag to effectively reduce power consumption of the RFID tag by measuring the power strength of a radio frequency (RF) signal received from an RFID reader and adjusting a level of transmission power based on the measured power strength of the signal.	09-18-2008