Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Redundancy method and switch apparatus

Redundancy method and switch apparatus

US Patent 7952994 · Granted May 31, 2011

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Optical signal judging system and optical signal judging method2007
Method of controlling optical wavelength division multiplexing transmission appa2007
Optical wavelength multiplexing transmission apparatus and optical output contro2006
Optical wavelength multiplexing transmission apparatus and optical output contro2004
Optical subscriber network system and fault supervising method for optical subsc2001
Optical subscriber network system2001
Method and apparatus for failure recovery in passive optical network2000