TERMIUM Plus®

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TAG TALKS FIRST PROTOCOL [1 record]

Record 1 2009-04-24

English

Subject field(s)
  • Radio Transmission and Reception
  • Remote Sensing
DEF

[A system in which] the communication [is] initialized by a tag upon entering an interrogation field.

CONT

When a tag using a TTF protocol enters the reader's power zone it begins broadcasting a short random number, and continues until it receives acknowledgment from the reader. If several tags broadcast at the same time, each waits a random interval before rebroadcasting. That process enables the reader to identify all the tags in its zone.

OBS

The tag is the master, the interrogator the slave. If a communication is established the interrogator can also operate as the master.

OBS

tag talks first; TTF: term, abbreviation and definition standardized by ISO/IEC [International Electrotechnical Commission].

Key term(s)
  • tag-talks-first protocol

French

Domaine(s)
  • Émission et réception radio
  • Télédétection
DEF

Protocole selon lequel la communication est initiée par une étiquette au moment où elle pénètre dans une zone d'interrogation.

OBS

L'étiquette est le maître et l'interrogateur est l'esclave. Si une communication est établie, l'interrogateur peut également agir à titre de maître.

Spanish

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