Cross-point type switch using common memories
AssigneesFujitsu Limited, Nippon Telegraph and Telephone Corporation
InventorsShinji Ohta, Tomohiro Shinomiya, Hiroshi Takeo, Misao Fukuda, Kazuo Iguchi
Life of this patent
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Abstract
A cross-point type switch includes a plurality of basic elements arranged in rows and columns so as to form a matrix arrangement of the basic elements. Each of the basic elements includes a plurality of input ports, output ports, expanded input ports and expanded output ports. A write/read part is connected to a common memory and has the function of writing data into the common memory and reading out the data from the common memory. A selector part selectively outputs either the data read out from the common memory or data from the expanded input ports to the output ports. The expanded output ports are directly connected to the input ports.
Claims10
A cross-point type switch comprising:
- a plurality of basic elements arranged in rows and columns so as to form a matrix arrangement of the basic elements,
- each of said basic elements including
- a plurality of input ports, output ports, expanded input ports and expanded output ports,
- a common memory,
- write/read means, coupled to said common memory, for writing data from said plurality of input ports, into said common memory, and reading out the data from said common memory, and
- selector means, coupled to said expanded input ports and said common memory, for selectively outputting either the data read out from said common memory or data from said expanded input ports, to said output ports,
- said expanded output ports being directly connected to said input ports of adjacent basic elements in each row.
Dependencies are inferred from the claim text.