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US 2001/0056512 A1Published application
Bus interface for transfer of SONET/SDH data
AssigneePMC-Sierra, Inc.
InventorsWinston K. Mok, Steven F. Lang, Carl D. McCrosky, Richard T. Tse
Life of this patent
Estimating the term…
Abstract
This invention provides a bus interface to connect SONET/SDH termination devices with payload processing devices while utilizing a minimum number of signals. The bus interface of this invention can scale with future advances in bandwidth in serial link technology.
Claims18
A method of connecting SONET/SDH termination devices with payload processing devices, comprising:
- (a) providing a transmit interface operative to receive incoming SONET/SDH signal streams and convert said SONET/SDH signal streams into outgoing low voltage differential signal (LVDS) levels with said SONET/SDH signal streams mapped into 8B/10B control characters so as to label SONET/SDH frame boundaries;
- and
- (b) providing a receive interface operative to receive incoming LVDS signal levels and convert said LVDS signal levels into outgoing SONET/SDH signal streams with decoding of said sB/10B control characters labeling SONET/SDH frame boundaries into SONET/SDH control signals.
A bus interface device for connecting SONET/SDH termination devices with payload processing devices, comprising:
- (a) a transmit interface operative to receive incoming SONET/SDH signal streams and convert said SONET/SDH signal streams into outgoing low voltage differential signal (LVDS) levels with said SONET/SDH signal streams mapped into 8B/10B control characters so as to label SONET/SDH frame boundaries;
- and
- (b) a receive interface operative to receive incoming LVDS signal levels and convert said LVDS signal levels into outgoing SONET/SDH signal streams with decoding of said 8B/10B control characters labeling SONET/SDH frame boundaries into SONET/SDH control signals.
Dependencies are inferred from the claim text.