Method and system for insertion and extraction of overhead...

Details Method and system for insertion and extraction of overhead... Method and system for insertion and extraction of overhead...

2006-11-21

2006-11-21

Ngo, Ricky Q. (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

C370S395500

Reexamination Certificate

active

07139286

ABSTRACT:
An overhead insertion interface unit connected to a high-speed line via a frame processing unit includes a TOH FIFO, a POH FIFO, and a common gate for transmitting a TOH input request and a POH input request to an external device. Each of the FIFOs receives a TOHAV signal together with TOH data and POH data sequentially, and the frame processing unit performs insertion processing. Overhead extraction processing is performed by the reverse of the operations for insertion processing, using the frame processing unit and the overhead extraction interface unit.

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