Data transfer device, data transfer system, and data...

Details Data transfer device, data transfer system, and data... Data transfer device, data transfer system, and data...

2002-10-09

2008-08-26

Nguyen, Tanh Q (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output process timing

C710S029000, C710S036000, C709S233000, C714S708000, C375S225000

Reexamination Certificate

active

07418532

ABSTRACT:
A transfer start/end detecting section detects timing at which a DMARQ signal becomes an H level or an L level. A transfer time-measuring section measures a transfer time during which data transfer is actually performed within a period in which a predetermined number of data blocks are transferred. A transfer byte count-measuring section measures a transferred byte count of data that have successfully been transferred. An effective data transfer rate-computing section computes an effective data transfer rate by dividing the transferred byte count by the transfer time. A transfer rate-comparing section compares the effective data transfer rate with a transfer rate that is one step slower than a current transfer rate output from a selectable transfer rate-storing section. If the former is slower, a transfer rate-switching section switches to the transfer rate that is one step slower. A large decrease in the effective data transfer rate caused by data corruption is prevented.

REFERENCES:
patent: 4914618 (1990-04-01), Dodge
patent: 5081575 (1992-01-01), Hiller et al.
patent: 5268906 (1993-12-01), Free
patent: 5438671 (1995-08-01), Miles
patent: 5668841 (1997-09-01), Haskell et al.
patent: 5675726 (1997-10-01), Hohenstein et al.
patent: 5724514 (1998-03-01), Arias
patent: 5999995 (1999-12-01), Ueno et al.
patent: 6009131 (1999-12-01), Hiramatsu
patent: 6035425 (2000-03-01), Caldwell et al.
patent: 6209046 (2001-03-01), Sato et al.
patent: 6340973 (2002-01-01), Ochiai et al.
patent: 6772245 (2004-08-01), Pomerantz et al.
patent: 1258173 (2000-06-01), None
patent: 0 994 422 (2000-04-01), None
patent: 63-153635 (1988-06-01), None
patent: 08-194602 (1996-07-01), None
patent: 11-045157 (1999-02-01), None
patent: 2001-236182 (2001-08-01), None
The Transmission Control Protocol; http//condor.depaul.edu/˜jkristof/echnotes/tcp.html (source coude indicates last updated Apr. 24, 2004).

Affiliated with

Also associated with

Rating

Data transfer device, data transfer system, and data... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data transfer device, data transfer system, and data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data transfer device, data transfer system, and data... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3998791