Electrical pulse counters – pulse dividers – or shift registers: c – Applications – Including memory
Patent
1997-08-11
1998-09-01
Wambach, Margaret Rose
Electrical pulse counters, pulse dividers, or shift registers: c
Applications
Including memory
365195, 36523005, 365236, 327365, 370395, G06M 300
Patent
active
058021310
ABSTRACT:
A multiport switch buffers and transfers cells of digital data. It provides the ability to control the synchronization of the ports in a distributed manner. Each port is associated with a counter that starts counting when transmission by either the port it is associated with is transferring a cell, or when another port is transferring a cell on a channel that conflicts with the channel attached to the port. The counter counts the appropriate number of digits corresponding to the length of the cell whereupon the port is provided with a signal indicating that the transmission has ended. In association with other control signals, the port may then begin transmitting a new cell. When multiple switches are attached to the same channel, the counter serves as a self-queuing mechanism that relieves a central controller from having to keep track of the transmission of bits by each port, and from having to select the next port for transmission.
REFERENCES:
patent: 5144619 (1992-09-01), Munter
patent: 5241536 (1993-08-01), Grimble et al.
patent: 5390184 (1995-02-01), Morris
patent: 5483496 (1996-01-01), Murakawa
Micro Technology Inc.
Wambach Margaret Rose
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