Electrical computers and digital processing systems: memory – Addressing combined with specific memory configuration or... – Virtual machine memory addressing
Reexamination Certificate
2006-12-05
2006-12-05
Bataille, Pierre-Michel (Department: 2186)
Electrical computers and digital processing systems: memory
Addressing combined with specific memory configuration or...
Virtual machine memory addressing
C711S156000, C711S145000, C711S144000
Reexamination Certificate
active
07146454
ABSTRACT:
A method and device for handling the refresh requirements of a DRAM or 1-Transistor memory array such that the memory array is fully compatible with an SRAM cache under all internal and external access conditions. This includes full compatibility when sequential operations alternate between memory cells in same row and column locations within different memory banks. The device includes bi-directional buses to allow read and write operations to occur between memory banks and cache over the same bus. The refresh operations can be carried out without interference with external accesses under any conditions.
REFERENCES:
patent: 5895487 (1999-04-01), Boyd et al.
patent: 5999474 (1999-12-01), Leung et al.
patent: 6067595 (2000-05-01), Lindenstruth
patent: 6075728 (2000-06-01), Inoue et al.
patent: 6330636 (2001-12-01), Bondurant et al.
patent: 6405273 (2002-06-01), Fleck et al.
patent: 6415353 (2002-07-01), Leung
patent: 6434661 (2002-08-01), Konishi et al.
patent: 6449685 (2002-09-01), Leung
patent: 6581126 (2003-06-01), Regula
patent: 6687181 (2004-02-01), Usuki et al.
patent: 0 642 685 (1995-03-01), None
Hodges et al., “Semiconductor Memories,” Analysis and Design of Digital Integrated Circuits, Sec. 9.3, pp. 372-380 (McGraw-Hill, 2nd ed. 1988).
Grimes, “The Intel i860 64-Bit Processor: A General-Purpose CPU with 3D Graphics Capabilities,” IEEE Computer Graphics & Applications, pp. 85-88 (Jul. 1989).
Dosaka, et al., “A 100MHz 4Mb Cobe Cache DRAM with Fast Copy-back Scheme,” Digest of Technical Papers, 1992 IEEE International Solid-State Circuits Conference, pp. 148-149 (Jun. 1992).
Niijima, et al., “QRAM-Quick Access Memory System”, IEEE International Conference on Compute Design: V.L.S.I. In Computers and Processors, pp. 417-420 (Sep. 17, 1990).
Li Jun
Tzou Joseph
Bataille Pierre-Michel
Cypress Semiconductor Corporation
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