Communication system, communication apparatus, communication...

Details Communication system, communication apparatus, communication... Communication system, communication apparatus, communication...

2011-04-12

2011-04-12

Maung, Nay (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Short range rf communication

C455S041100, C340S010100

Reexamination Certificate

active

07925215

ABSTRACT:
A communication system, a communication device and a communication method, to achieve a reduction in communication time. When performing communication in passive mode, the initiator transmits a polling request frame where a first value is set in time slot information, and when performing communication in simple mode, the initiator transmits a polling request frame where a second value different from the first value is set in time slot information. When the time slot information included in the polling request frame from the initiator has the first value, the target transmits a polling response frame including an ID for identifying the target at the timing of a time slot determined by a random number, and when the time slot information has the second value, the target transmits a polling response frame including real data at the timing of a time slot set in advance.

REFERENCES:
patent: 2005/0127180 (2005-06-01), Matsumoto et al.
patent: 2006/0163365 (2006-07-01), Nakabe
patent: 2004 185601 (2004-07-01), None
patent: 2004 215225 (2004-07-01), None
patent: 2005 184761 (2005-07-01), None
“International Standard: Information Technology—Telecommunications and Information Exchange Between Systems—Near Field Communication—Interface and Protocol (NFCIP-1)”, ISO/IEC 18092, pp. II to VI and 1 to 58, 2004.
“ECMA: Near Field Communication Wired Interface (NFC-WI)”,ECMA-373, pp. I to II and 1 to 17, 2006.

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