MXPA02006909A

Hybrid wireless optical and radio frequency communication link.

Abstract

A hybrid wireless optical and radio frequency (RF) communication link utilizes parallel freespace optical and RF paths for transmitting data and control and status information. The optical link provides the primary path for the data, and the RF link provides a concurrent or backup path for the network data, as well as a reliable and primary path for the control and status information. When atmospheric conditions degrade the optical link to the point at which optical data transmission fails, the hybrid communication link switches to the RF link to maintain availability of data communications. The switch may occur automatically, based on an assessment of the quality of the optical signal communicated through the optical path.

Term

Term ended

Expired 26 December 2020, 5.7 years ago.

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33 members in 18 offices

This recordMember, by publication datePriority claim8 more offices are in the list below

Priority claims2

Priority claims
DocumentOfficeKindDate
48278200United States of AmericaA
0035198United States of AmericaW

Members33

Family members, oldest first
DocumentOfficeKind
CA2397303A1CanadaA1
WO0152450A2World Intellectual Property Organization (WIPO)A2
AU5286801AAustraliaA
WO0152450A3World Intellectual Property Organization (WIPO)A3
BR0016964ABrazilA
EP1249084A2European Patent Office (EPO)A2
KR20030007396ARepublic of KoreaA
IL150553D0IsraelD0
HU0203671A2HungaryA2
HUP0203671A2HungaryA2
JP2003520491AJapanA
EP1249084B1European Patent Office (EPO)B1
EP1343260A2European Patent Office (EPO)A2
AT249697TAustriaT
ATE249697T1AustriaT1
DE60005222D1GermanyD1
CN1451210AChinaA
ZA200206315BSouth AfricaB
EP1370014A2European Patent Office (EPO)A2
US2004037566A1United States of AmericaA1
NZ520591ANew ZealandA
ES2202225T3SpainT3
DE60005222T2GermanyT2
US6763195B1United States of AmericaB1
MXPA02006909AThis recordMexicoA
US2004208591A1United States of AmericaA1
EP1343260A3European Patent Office (EPO)A3
EP1370014A3European Patent Office (EPO)A3
AU2001252868B2AustraliaB2
HU224304B1HungaryB1
CN1227838CChinaC
SG119252A1SingaporeA1
US7110678B2United States of AmericaB2