Method of addressing messages and communications system
US7672260B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2005 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Oct 8, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A target radio frequency identification (RFID) device may include a receiver to receive valid bits common to a first set of random numbers and to receive a signal indicating a change in a number of time slots from a first number of a plurality of time slots to a second number of a plurality of time slots in which the target device may respond. The target device may include processing circuitry to generate a random number, to determine if the random number is in the first set, to generate a random value, and to randomly select a time slot. The target device may further include a transmitter to communicate a response if the random number is determined to be in the first set, and to communicate the random value during the randomly selected time slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.