Pulse or digital communications – Spread spectrum – Frequency hopping
Reexamination Certificate
2006-09-05
2006-09-05
Ha, Dac (Department: 2611)
Pulse or digital communications
Spread spectrum
Frequency hopping
C370S295000, C370S337000, C370S344000
Reexamination Certificate
active
07103087
ABSTRACT:
A system and method is provided for implementing forced frequency “hops” if the time it takes to perform a particular transaction is greater than the time available on a particular carrier frequency. In one embodiment of the present invention, a radio frequency identification (RFID) base station processor (in conjunction with program information stored in a base station memory) is adapted to (i) determine the amount of time available on a particular carrier frequency (e.g., pursuant to Federal Communications Commission (FCC) regulations, European Telecommunications Standardization Institute (ETSI) regulations, etc.), (ii) determine the amount of time it would take to perform a particular transaction, and (iii) force the base station to “hop” to another carrier frequency if the transaction time is longer than the available time. In one embodiment of the present invention, the time it would take to perform a particular transaction is the time it would take to perform the next transaction. In another embodiment of the present invention, the time it would take to perform a particular transaction is the time it would take to perform the longest (or “worst-case”) transaction. In alternate embodiments of the present invention, a transaction is defined as the transmission of information (e.g., data, commands, etc.) or both the transmission of information and the reception of related information.
REFERENCES:
patent: 5471469 (1995-11-01), Flammer et al.
patent: 5533025 (1996-07-01), Fleek et al.
patent: 6434183 (2002-08-01), Kockmann et al.
patent: 6486769 (2002-11-01), McLean
patent: 6862438 (2005-03-01), Darabi
patent: 6967934 (2005-11-01), Kockmann et al.
patent: 2002/0122405 (2002-09-01), Liang
patent: 2002/0186749 (2002-12-01), Jones
patent: 2003/0189638 (2003-10-01), Fry
patent: 2005/0141562 (2005-06-01), Chen et al.
Ha Dac
Intermec IP Corp.
O'Melveny & Myers LLP
Wong Linda
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