Method for activating a communication mode of a peer communication unit
A communication mode and a technology of activating signals, which are applied in the direction of instruments, inductive record carriers, computer components, etc., and can solve problems such as expensive, laborious, and interrupted
Inactive Publication Date: 2008-11-26
NXP BV
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Problems solved by technology
A disadvantage of the known method and of the known ID tags is that the ID tag has to be pre-programmed for one application or another, that is to say the bit values have to be set by means of commands and this (for example) as early as the ID tag is manufactured or When the ID tag is initialized
An ID tag programmed for use in one system, that is to say for example an ID tag programmed for a TTF system cannot, or will, function in another system, say for example an RTF system cause interruption, and it is detrimental to
When appropriate, reprogramming can be done; however, this requires a special communication station suitable for the purpose and which must serve a suitable communication protocol
This is a condition that is often not met and can be laborious and expensive, which is disadvantageous
Method used
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Embodiment Construction
[0031] figure 1 An RFID communication system 1 is shown with an RFID communication partner device in a communication area CA, which is illustrated with dashed lines. Here, one RFID communication partner device is designed as a data carrier 2, another RFID communication partner device is designed as a communication station 4, and a further RFID communication partner device is designed as a data carrier 2', wherein the data Carrier 2 and communication station 4.
[0032] The communication station 4, which can likewise also be referred to as a reader station 4, is designed for contactless communication with the two data carriers 2 and 2'.
[0033]The reader station 4 has a transmission device 5 constituting a sending device and a receiving device, which device 5 defines a communication range CA during transmission and is designed to send a reader signal RS at a frequency of 13.56 MHz and to transmit a reader signal RS from two data carriers 2 and 2' receive the data carrier sig...
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When activating a desired communication mode of an ID communication partner device (2) from a group of possible communication modes, which group comprises at least a TTF mode and an RTF mode, the ID communication partner device (2) and at least one other ID communication partner device (4) are brought into a communication connection, wherein a carrier signal (CS) is output by the at least one other ID communication partner device (4), which carrier signal (CS) is received by the ID communication partner device (2), and wherein the carrier signal (CS) is repeatedly designated by at least one mode activation signal (AS) by means of the at least one other ID communication partner device (4), and wherein the presence of the mode activation signal (AS) is recognized by the ID communication partner device (2), giving a recognition result signal (RRS), and wherein, as a function of the recognition result signal (RRS), the desired communication mode of the ID communication partner device (2) is activated.
Description
technical field [0001] The invention relates to a method for activating a desired communication mode of an ID communication partner device from a set of possible communication modes. [0002] The invention also relates to an integrated circuit for an ID communication partner device, comprising activation means for activating a desired communication mode of the ID communication partner device from a set of possible communication modes. Background technique [0003] In well-known communication systems with ID communication partner devices (which are commonly used in a large number of various embodiments and are designed as Reader Talks First (Reader Talks First) (RTF) systems), certain ID communication The partner devices are respectively formed by transponders or ID tags, and the other ID communication partner devices are respectively formed by communication stations. The abbreviation ID in this case stands for the word "identification". The transponder enables a communicat...
Claims
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IPC IPC(8): G06K7/00H04B5/48
CPCG06K7/0008G06K7/10029G06K7/10297
Inventor K·布雷特福斯H·昆卡特
Owner NXP BV