(57) ABSTRACT A waveguide has a front and a rear Surface, the waveguide for a display
System and arranged to guide light from a light engine onto an eye of a user to make an …

A wearable image display system includes a headpiece, a first and a second light engine,
and a first and a second optical component. The first and second light engines generate a …

A display system comprises an optical waveguide and a light engine. The light engine
generates multiple input beams which form a virtual image. An incoupling grating of the …

(56) References Cited 6,621,702 B2 9, 2003 Elias et al. 6,631,755 B1 10/2003 Kung et al.
US PATENT DOCUMENTS 6,635,999 B2 10/2003 Belliveau 6,639,201 B2 10/2003 Almogy …

(57) ABSTRACT A system management tool provides a comprehensive sum mary of
operational information of a storage system. For example, the system management tool …

The components are Supported with the first and second com ponent gratings in the vicinity
of the first and second master gratings, and first and second fringe patterns formed by the …

A technique predicts failure of one or more storage devices of a storage array serviced by a
storage system and for establishes one or more threshold conditions for replacing the …

A transaction engine includes a multi-version concurrency control (MVCC) module that
accesses a latch-free hash table that includes respective hash table entries that include …

(56) References Cited 6,577.411 B1 6/2003 David 6,580,529 B1 6/2003 Amitai et al. US
PATENT DOCUMENTS 6,606,152 B2 8/2003 Littau et al. 6,621,702 B2 9/2003 Elias et al …

An optimized segment cleaning technique is configured to efficiently clean one or more
selected portions or segments of a storage array coupled to one or more nodes of a cluster …