Method and radio frequency identification system for a novel protocol for reliable communication
US5818348A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1997 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Jul 23, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/0008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Reliable communication is provided by a radio frequency identification system comprising at least one of an interrogator (102) and a transponder (104). The interrogator (102) transmits a plurality of interrogator frames (106) and receives at least one of a plurality of transponder frames (114). The transponder (104) transmits the plurality of transponder frames (114) and receives at least one of the plurality of interrogator frames (106). Each frame in the plurality of interrogator frames and the plurality of transponder frames includes an initialization sequence (108 and 116), at least one information sequence of a first predetermined length (110 and 118), and a check sequence of a second predetermined length (112 and 120) for each information sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.