SONET data byte switch

Details SONET data byte switch SONET data byte switch

2007-07-10

2007-07-10

Sough, Hyung (Department: 2188)

Electrical computers and digital processing systems: memory

Addressing combined with specific memory configuration or...

For multiple memory modules

C370S370000, C370S371000, C370S372000, C370S373000, C370S374000, C370S375000, C370S376000, C370S379000, C370S382000

Reexamination Certificate

active

11031861

ABSTRACT:
A switch system including a plurality of input ports and a plurality of output ports for transferring data from one of the input ports to one of the output ports, and a plurality of memory devices is disclosed. The memory devices include a first memory bank configured for data being written to the first memory bank while data is read from the first memory bank at a timeslot and a second memory bank, which is smaller than the first memory bank and configured for writing the data read from the first memory bank to the second memory bank and reading data from the second memory bank. The system further includes an address comparer configured to compare a write address of the first memory bank with a read address of the first memory bank and select data for output from the first memory bank if the write address is smaller than the read address and select data from the second memory bank if the read address is equal to or smaller than the write address.

REFERENCES:
patent: 5521912 (1996-05-01), Kattke et al.
patent: 5860080 (1999-01-01), James et al.
patent: 5978354 (1999-11-01), Taketomi
patent: 6097735 (2000-08-01), Nemoto
patent: 6393515 (2002-05-01), Pollack et al.
patent: 6801464 (2004-10-01), Kawano

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