摘要:
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 120 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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A data carrier (1) for contactless communication with the communication station comprises firstly a receiving stage (3) for receiving a request signal (IS), secondly a storage facility (16) for storing at least two items of status information (EASB1, EASB2), thirdly a readout facility (15) for reading out one item of status information (EASB1, EASB2) at a time in response to receiving the request signal (IS), fourthly a processing circuit (18) for processing the status information (EASB1, EASB2) read out in each case so as to create a transmission signal (MCRS) suitable for transmission to the communication station, fifthly a recognition facility (22) for recognizing the status information (EASB1, EASB2) read out in each case, and sixthly a control connection (25) between the recognition facility (22) and the processing circuit (18), such that the processing circuit (18) can be influenced via the control connection (25) into altering a transmission parameter for a transmission signal generated by the processing circuit (18) as a function of the status information (EASB1, EASB2) recognized and readout in each case.