Synchronous optical network in frequency domain
JY Liu - US Patent 6,519,060, 2003 - Google Patents
An optical wavelength add/drop multiplexer provides communications between two optical
links supporting wavelength division multiplexing (WDM). A wavelength slicer spatially …
links supporting wavelength division multiplexing (WDM). A wavelength slicer spatially …
Optical channel cross connect for telecommunication systems in wdm technology (wavelength division multiplexing) having a double spatial switching structure of …
S Rotolo, S Brunazzi - US Patent 6,542,268, 2003 - Google Patents
An optical cross-connect for the Switching of optical chan nels at variable bit-rate (up to 10
Gbit/s), wavelength divi Sion multiplexed on bi-directional optical fibers forming the …
Gbit/s), wavelength divi Sion multiplexed on bi-directional optical fibers forming the …
Subterranean drainage pattern
JA Zupanick, MH Rial - US Patent 6,575,235, 2003 - Google Patents
A method and system for accessing subterranean zones from the surface includes a
substantially vertical well bore extending from the surface to a target zone, and an …
substantially vertical well bore extending from the surface to a target zone, and an …
Method and system for accessing subterranean zones from a limited surface area
JA Zupanick, MH Rial - US Patent 6,604,580, 2003 - Google Patents
A method and system for accessing subterranean zones from the surface includes a
substantially vertical well bore extending from the surface to a target zone, and an …
substantially vertical well bore extending from the surface to a target zone, and an …
Method and system for accessing subterranean deposits from the surface
JA Zupanick - US Patent 6,561,288, 2003 - Google Patents
Improved method and system for accessing subterranean deposits from the surface that
substantially eliminates or reduces the disadvantages and problems associated with …
substantially eliminates or reduces the disadvantages and problems associated with …
Method and system for accessing subterranean deposits from a limited surface area
JA Zupanick, MH Rial - US Patent 6,662,870, 2003 - Google Patents
A method and system for accessing subterranean resources from a limited surface area
includes a first well bore extending from the surface to the target zone. The first well bore …
includes a first well bore extending from the surface to the target zone. The first well bore …
Method and system for enhanced access to a subterranean zone
JA Zupanick - US Patent 6,598,686, 2003 - Google Patents
A system for enhanced access to subterranean zone from the surface includes a well bore
pattern having a first well bore extending from a surface well bore substantially defining a …
pattern having a first well bore extending from a surface well bore substantially defining a …
Method and apparatus for optical to electrical to optical conversion in an optical cross-connect switch
R Ramaswami, RR Ward - US Patent 6,650,803, 2003 - Google Patents
US6650803B1 - Method and apparatus for optical to electrical to optical conversion in an optical
cross-connect switch - Google Patents US6650803B1 - Method and apparatus for optical to …
cross-connect switch - Google Patents US6650803B1 - Method and apparatus for optical to …
Method and system for accessing subterranean deposit from the surface
JA Zupanick - US Patent 6,668,918, 2003 - Google Patents
(54) METHOD AND SYSTEM FOR ACCESSING EP O 819 834 A1 1/1998........... E21B/43/28
SUBTERRANEAN DEPOST FROM THE EP O 875 661 A1 11/1998........... E21B/43/30 …
SUBTERRANEAN DEPOST FROM THE EP O 875 661 A1 11/1998........... E21B/43/30 …
Network control system for optical communication networks
D Handelman - US Patent 6,574,018, 2003 - Google Patents
A network control system may be embodied in various elements of a communication network
which communicates optical signals multiplexed by wavelength division multiplexing …
which communicates optical signals multiplexed by wavelength division multiplexing …