Static information storage and retrieval – Read/write circuit – Testing
Reexamination Certificate
2007-11-16
2010-06-08
Luu, Pho M. (Department: 2824)
Static information storage and retrieval
Read/write circuit
Testing
C365S191000, C365S226000, C365S227000
Reexamination Certificate
active
07733720
ABSTRACT:
A method and system for determining element voltage selection control values for a storage device provides energy conservation in storage arrays while maintaining a particular performance level. The storage device is partitioned into multiple elements, which may be sub-arrays, rows, columns or individual storage cells. Each element has a corresponding virtual power supply rail that is provided with a selectable power supply voltage. At test time, digital control values are determined for selection circuits for each element that set the virtual power supply rail to the minimum power supply voltage, unless a higher power supply voltage is required for the element to meet performance requirements. The set of digital control values can then be programmed into a fuse or used to adjust a mask at manufacture, or supplied on media along with the storage device and loaded into the device at system initialization.
REFERENCES:
patent: 5297097 (1994-03-01), Etoh et al.
patent: 5687382 (1997-11-01), Kojima et al.
patent: 6031781 (2000-02-01), Tsuji et al.
patent: 7551508 (2009-06-01), Joshi et al.
patent: 2007/0141731 (2007-06-01), Hemink et al.
patent: 2007/0200593 (2007-08-01), Agarwal et al.
Joshi Rajiv V.
Kanj Rouwaida N.
Kuang Jente B
Nassif Sani R.
Ngo Hung Cai
Harris Andrew M.
International Business Machines - Corporation
Luu Pho M.
Mitch Harris Atty at Law, LLC
Toub Libby Z.
LandOfFree
Method and system for determining element voltage selection... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for determining element voltage selection..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for determining element voltage selection... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4168276