Asynchronous transfer scheme using multiple channels

Details Asynchronous transfer scheme using multiple channels Asynchronous transfer scheme using multiple channels

1997-10-30

2000-06-27

Hsu, Alpus H.

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370438, 370462, 375220, H04L 1240, H04L 1228, H04L 1256, H04J 302

Patent

active

060815272

ABSTRACT:
A data transfer device for transferring packets of data across an asynchronous boundary separating a first time domain from a second time domain, and, a method for transferring the packets of data is disclosed. The device comprises a plurality of transmitter/receiver combinations, which form a plurality of channels across the asynchronous boundary, such that multiple packets of data can be transferred across the asynchronous boundary at any one time. The device comprises ordering units which preserve the order of the packets of data as they are transferred across the asynchronous boundary. The ordering units perform this function by transmitting the packets of data through transmitters in a predetermined transmitter sequence and receiving the packets of data on the receivers in a predetermined receiver sequence which corresponds to the predetermined transmitter sequence. In this way, the predetermined order of the packets of data being transferred across the asynchronous boundary is preserved. In one embodiment, the channels are single handshake channels such that one handshake signal both requests receipt of a new packet of data and acknowledges receipt of a previous packet of data from the other time domain.

REFERENCES:
patent: 4488226 (1984-12-01), Wagner, Jr. et al.
patent: 5594734 (1997-01-01), Worsley et al.
patent: 5602878 (1997-02-01), Cross
patent: 5691713 (1997-11-01), Ishida

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