Communications: electrical – Continuously variable indicating – With meter reading
Patent
1994-09-09
1997-09-30
Horabik, Michael
Communications: electrical
Continuously variable indicating
With meter reading
34082535, 340568, 340572, 235385, G01S 1375
Patent
active
056730373
ABSTRACT:
A system and method is disclosed for selecting certain subgroups of radio frequency (RF) tags for querying, communicating, and/or identifying by a base station. The base station sends commands to a group tags within a RF field of the base station. The tags use control logic to determine whether or not they meet certain criteria sent out by the commands. This may cause the tags to change state which either prevents or allows a given tag to participate in an identification process. In this way, a given subgroup(s) of tags meeting certain criteria can be selected for querying, communicating, and/or identifying.
REFERENCES:
patent: 3970824 (1976-07-01), Walton et al.
patent: 4636950 (1987-01-01), Caswell et al.
patent: 4656463 (1987-04-01), Anders et al.
patent: 4673932 (1987-06-01), Ekchian et al.
patent: 5151684 (1992-09-01), Johnsen
patent: 5231273 (1993-07-01), Caswell et al.
patent: 5245534 (1993-09-01), Waterhouse
patent: 5407050 (1995-04-01), Takemoto et al.
patent: 5410315 (1995-04-01), Huber
patent: 5434572 (1995-07-01), Smith
patent: 5489908 (1996-02-01), Orthmann et al.
A.R. Grasso, "Electronic Remote Identification--A Case Study" Integrated Silicon Design Pty Ltd., 1990 IEEE pp. 14-2.1-2.3 Sep. 1990.
A. Nelson, "Research Looks into the Future", IBM's Think Magazine Jul./Aug. 1994 p. 4.
"Stationary Reading/Writing Unit Reference Manual" Texas Instruments Manual No.: RI-ACC-UM02-01 Undated.
"Duoprox Multiple Technology Proximity Card", Hughes Identification Devices, DP1330-L Series (2 pages) Undated.
Cesar Christian Lenz
Chan Shun Shing
Cofino Thomas Anthony
Goldman Kenneth Alan
Greene Sharon L.
Horabik Michael
International Business Machines - Corporation
Percello Louis J.
Wilson Jr. William H.
LandOfFree
System and method for radio frequency tag group select does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for radio frequency tag group select, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for radio frequency tag group select will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2260102