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 Title: |
US5959568:
Measuring distance
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Woolley, Louis A.; Clinton, NY
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| Assignee: |
Par Goverment Systems Corporation, New Hartford, NY
other patents from PAR GOVERNMENT SYSTEMS CORPORATION (742602) (approx. 4)
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| Published / Filed: |
1999-09-28
/ 1996-06-26
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| Application Number: |
US1996000670612
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| IPC Code: |
Advanced:
G01S 5/02;
G01S 13/74;
G01S 13/87;
G08G 1/127;
G01S 5/14;
G01S 7/00;
G01S 13/76;
G01S 13/78;
G01S 13/84;
G01S 13/88;
Core:
G01S 13/00;
more...
IPC-7:
G01S 13/84;
G06F 17/60;
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| ECLA Code: |
G01S5/02R1; G01S13/74; G01S13/87E; G08G1/127; S01S5/14B3; S01S7/00R; S01S13/76R; S01S13/78; S01S13/82B; S01S13/84; S01S13/88;
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| U.S. Class: |
Current:
342/042;
235/385;
340/010.1;
340/010.6;
340/568.1;
340/572.1;
342/125;
700/215;
700/225;
705/028;
Original:
342/042;
364/478.03;
364/478.13;
235/385;
340/568;
340/572;
340/825.54;
705/028;
342/125;
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| Field of Search: |
342/042,44,50,51,125
235/375,385
340/539,568,572.8,825.54
364/400,478.01,478.02,478.03,478.13,478.14
705/028
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| Priority Number: |
| 1996-06-26 |
US1996000670612 |
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| Abstract: |
An object in a storage area or moving vehicle is monitored by attaching an electronic tag to the object. An electronic device detects the presence of the object by communicating with the tag while the object is in storage or is being moved by the vehicle. The tags may also determine the location of an attached object and may reroute the object if it deviates from a given shipping schedule. A group of objects is monitored by two electronic tags, each attached to an object in the group. Each tag has circuitry for communicating information relating to an object in the group to a second tag. Each tag also includes a memory connected to the circuitry that is capable of storing the information, and a controller connected to the memory and the circuitry. A distance is measured by transmitting multiple symbols from one object to another object, having the symbols returned such that the symbols' measured round-trip times are not all identical, and calculating the distance using the measured round-trip times.
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| Attorney, Agent or Firm: |
Fish & Richardson P.C. ;
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| Primary / Asst. Examiners: |
Sotomayor, John B.;
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Designated Country: |
AL AM AP AT AZ BA BB BG BR BY CH CN CU CZ DE DK EE EP ES FI GB GE HU IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV
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| Family: |
Show 6 known family members
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First Claim:
Show all 31 claims |
What is claimed is:
1. A system for monitoring and affecting actions on behalf of a group of objects, comprising:
- a first electronic tag attached to an object in the group, comprising:
- circuitry for communicating with a second tag, the circuitry communicating at least information pertaining to an object in the group, and
- a memory connected to the circuitry and capable of storing the information, and
- a second electronic tag attached to an object in the group, comprising
- circuitry for communicating the information with the first tag,
- a memory connected to the circuitry in the second tag and capable of storing the information,
- wherein the information comprises a distance between the first tag and the second tag.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
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| Description: |
Show description
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| Forward References: |
Show 143 U.S. patent(s) that reference this one
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| Foreign References: |
None
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| Other Abstract Info: |
DERABS G1998-077281
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| Other References: |
"Radio tracking/ID & security system", Savi Technology, Commercial Carrier Journal, p. 122, Aug. 1995.
TransitMaster.TM. An Integrated, GPS-Based Information Management System for Transit, Rockwell International, Cedar Rapids, IA, Aug. 1995.
Okabe et al., "Spatial Tessellations Concepts and Applications of Voronoi Diagrams", chapters 1-4.
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