Electronics and Telecommunications Research Institute

Em Microelectronic-marin Sa

Cisc Semiconductor Design+consulting Gmbh

Ipico South Africa (proprietary) Limited

Cisc Semiconductor Gmbh

Josef Preishuber-Pfluegl

Jong-Suk Chae

Cheol-Sig Pyo

Gil-Young Choi

Ji-Hoon Bae

Jae-Young Jung

Hae-Won Son

Hee-Sook Mo

David Tschische

Jongsuk Chae

Cheolsig Pyo

Gilyoung Choi

Sewon Oh

Chanwon Park

Junho Yeo

Alex Janek

Andreas Schuhai

Thierry Roz

Donghan Lee

Albertus Jacobus Pretorius

Hendrik Lodewyk Van Eeden

Christopher Turner

Andreas Schuhal

Markus Pistauer

Jihoon Bae

Nak-Seon Seong

Heyung-Sub Lee

Hyunseok Kim

Jong- Suk Chae

Christophe Turner

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.

RFID interrogator having collision type identification function 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.

RFID interrogator retransmitting command depending on collision situation and control method thereof

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 detectorwhich 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.

RFID tag

A passive tag including a volatile memory is provided. The passive tag includes: a sensing unit which senses or measures information about environmental surroundings of the tag; a volatile memory; a non-volatile memory; and a control unit which firstly stores resultant data sensed or measured by the sensing unit in the volatile memory and then moves the data stored in the volatile memory to the non-volatile memory according to pre-set conditions. Therefore, the life of the tag is prolonged and stability of important data can be secured.

Passive tag including volatile memory

An apparatus for storing sensing data in a tag and a method thereof are provided. According to the present invention, data measured by the sensor is stored in volatile memory and important data from among the data stored in the volatile memory is stored in non-volatile memory according to a pre-set data loss prevention mechanism so that a battery and the tag including the battery have a longer life and stability of data can be secured.

Apparatus for storing sensing data in tag and method thereof

Growing community of inventors

Klagenfurt, Austria

Josef Preishuber-Pfluegl