Arbitration scheme for shared memory device

Electrical computers and digital data processing systems: input/ – Access arbitrating

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C711S105000, C711S106000, C711S147000, C714S754000

Reexamination Certificate

active

07600065

ABSTRACT:
For arbitrating access to a shared memory device among a plurality of masters, a master generates a request for access signal that is sent to the arbitrator concurrently with an indispensable command such as an auto-refresh command that is generated in series. The arbitrator generates an acknowledge signal sent to the master for indicating approval or rejection for access. Existing pins of the master are used for transmission of such arbitration signals.

REFERENCES:
patent: 4924381 (1990-05-01), Tokuume
patent: 5784582 (1998-07-01), Hughes
patent: 5845097 (1998-12-01), Kang et al.
patent: 6219747 (2001-04-01), Banks et al.
patent: 6285616 (2001-09-01), Ikabata
patent: 6385692 (2002-05-01), Banks et al.
patent: 6393505 (2002-05-01), Scalise et al.
patent: 6721225 (2004-04-01), Tsukude
patent: 6754786 (2004-06-01), Suzuki et al.
patent: 6848035 (2005-01-01), Akiyama et al.
patent: 6934820 (2005-08-01), Chauvel et al.
patent: 7093047 (2006-08-01), Au et al.
patent: 7145828 (2006-12-01), Lee et al.
patent: 7254688 (2007-08-01), Uneme
patent: 7366828 (2008-04-01), Sakurai
patent: 7454586 (2008-11-01), Shi et al.
patent: 2002/0010823 (2002-01-01), Wenzel
patent: 2006/0143372 (2006-06-01), Walker et al.
patent: 2006/0239095 (2006-10-01), Shi et al.
patent: 2007/0070794 (2007-03-01), Lee et al.
Maxwell Technologies, “Introduction to Synchronous DRAM”. Apr. 25, 2003, 15 pages.
Micron, “Synchronous DRAM”. Retrieved from the website, “http://download.micron.com/pdf/datasheets/dram/sdram/512MbSDRAM.pdf” on Aug. 18, 2008. 68 pages.
Korean Patent Application No. 1019950067423 to Sim, having Publication date of Feb. 28, 2002 (w/English Abstract page).
Korean Patent Application No. 1019960047658 to Cho, having Publication date of Feb. 18, 1999 (w/English Abstract page).
Japanese Patent Application No. 2002-235579 to Shigeki, having Publication date of Mar. 11, 2004 (w/English Abstract page).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Arbitration scheme for shared memory device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Arbitration scheme for shared memory device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arbitration scheme for shared memory device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4053725

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.