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Title:
PACKET SPEED CONVERTER
Document Type and Number:
Japanese Patent JP3444247
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a packet speed converter which reduces consumption of bus band resources that is caused by the slow transfer capability and can use a 1394 bus of higher efficiency.
SOLUTION: An asynchronous packet that is received from a 1394 bus B1 or B2 is stored temporarily in a RAM 13. Then the synchronous packet undergoes the header conversion, is converted into a transfer rate based on the setting of a switch 14-1 or 14-2 and transmitted to the other 1394 bus. Meanwhile, a steam packet that is received similarly as the synchronous bus is outputted to a link layer LSI 31 or 32 through an isochronous packet transfer path S3, undergoes header conversion according to the setting of a steam control register of each link layer LSI, is converted into a transfer rate, based on the setting of the switch 14-1 or 14-2 and then is transmitted to each bus.


Inventors:
Wataru Domon
Junichi Matsuda
Shuntaro Yamazaki
Application Number:
JP27756199A
Publication Date:
September 08, 2003
Filing Date:
September 29, 1999
Export Citation:
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Assignee:
NEC
International Classes:
G06F13/38; H04L12/28; H04L12/40; H04L12/46; H04L29/08; H04L12/64; H04L29/06; (IPC1-7): H04L12/46
Domestic Patent References:
JP10145433A
JP11215161A
Attorney, Agent or Firm:
Nobuo Takahashi (3 outside)