H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 1/20 (2006.01) H04L 12/26 (2006.01) H04L 12/56 (2006.01)
Patent
CA 2058796
A cell switch and a cell switch network with a simplified cell switch testing such that the testing processes can be carried out quickly and easily. The cell switch includes a dummy cell generation circuit for generating dummy cells in correspondence to the output transmission paths; and an output control circuit for selectively outputting the dummy cells to the output transmission paths when a test of the cell switch is indicated by an externally provided control signal. In a cell switch network In which the cell witches are inter- connected in a form of a multi-step configuration, the cell switches belonging to each step in the multi-step configuration of the cell switch network is tested sequentially, by supplying the control signal to each of the cell switches belonging to each step in the multi-step configuration of the cell switch network sequentially, in a reverse order of steps in the multi-step configuration of the cell switch network.
Kamagata Eiji
Shobatake Yasuro
Kabushiki Kaisha Toshiba
Kamagata Eiji
Marks & Clerk
Shobatake Yasuro
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