Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital logic testing
Reexamination Certificate
2005-06-28
2005-06-28
Peikari, B. James (Department: 2186)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital logic testing
C714S735000, C713S401000
Reexamination Certificate
active
06912680
ABSTRACT:
A memory system includes a memory controller and a bank of memory devices. The memory controller controls the memory devices through packets of control data and a master clock signal. Each of the memory devices includes an adjustable output timing vernier that can be adjusted in response to commands from the memory controller. The vernier output controls timing of output data relative to the master clock signal. As each memory device transmits data to the memory controller, the memory device also transmits an echo clock signal coincident with the data. The memory controller receives the echo clock signal and compares the echo clock signal to the master clock signal to identify shifts in timing of the echo clock signal. If the echo clock signal shifts by more than one vernier increment from the master clock signal, the master controller issues a command to the memory device to adjust the output vernier to correct the timing drift of the echo clock signal. By correcting the timing drift of the echo clock signal, the memory controller also corrects timing drift of the output data, thereby assuring that the data arrive at the memory controller coincident with edges of the master clock signal.
REFERENCES:
patent: 3633174 (1972-01-01), Griffin
patent: 4004100 (1977-01-01), Takimoto
patent: 4077016 (1978-02-01), Sanders et al.
patent: 4096402 (1978-06-01), Schroeder et al.
patent: 4404474 (1983-09-01), Dingwall
patent: 4481625 (1984-11-01), Roberts et al.
patent: 4508983 (1985-04-01), Allgood et al.
patent: 4511846 (1985-04-01), Nagy et al.
patent: 4514647 (1985-04-01), Shoji
patent: 4524448 (1985-06-01), Hullwegen
patent: 4573017 (1986-02-01), Levine
patent: 4600895 (1986-07-01), Landsman
patent: 4603320 (1986-07-01), Farago
patent: 4638187 (1987-01-01), Boler et al.
patent: 4638451 (1987-01-01), Hester et al.
patent: 4687951 (1987-08-01), McElroy
patent: 4727541 (1988-02-01), Mori et al.
patent: 4746996 (1988-05-01), Furuhata et al.
patent: 4773085 (1988-09-01), Cordell
patent: 4789796 (1988-12-01), Foss
patent: 4818995 (1989-04-01), Takahashi et al.
patent: 4893087 (1990-01-01), Davis
patent: 4902986 (1990-02-01), Lesmeister
patent: 4953128 (1990-08-01), Kawai et al.
patent: 4958088 (1990-09-01), Farah-Bakhsh et al.
patent: 4972470 (1990-11-01), Farago
patent: 4984204 (1991-01-01), Sato et al.
patent: 4984255 (1991-01-01), Davis et al.
patent: 5020023 (1991-05-01), Smith
patent: 5038115 (1991-08-01), Myers et al.
patent: 5062082 (1991-10-01), Choi
patent: 5075569 (1991-12-01), Branson
patent: 5086500 (1992-02-01), Greub
patent: 5087828 (1992-02-01), Sato et al.
patent: 5120990 (1992-06-01), Koker
patent: 5122690 (1992-06-01), Bianchi
patent: 5128560 (1992-07-01), Chern et al.
patent: 5128563 (1992-07-01), Hush et al.
patent: 5130565 (1992-07-01), Girmay
patent: 5134311 (1992-07-01), Biber et al.
patent: 5150186 (1992-09-01), Pinney et al.
patent: 5165046 (1992-11-01), Hesson
patent: 5168199 (1992-12-01), Huffman et al.
patent: 5179298 (1993-01-01), Hirano et al.
patent: 5182524 (1993-01-01), Hopkins
patent: 5194765 (1993-03-01), Dunlop et al.
patent: 5212601 (1993-05-01), Wilson
patent: 5220208 (1993-06-01), Schenck
patent: 5223755 (1993-06-01), Richley
patent: 5229929 (1993-07-01), Shimizu et al.
patent: 5233314 (1993-08-01), McDermott et al.
patent: 5233564 (1993-08-01), Ohshima et al.
patent: 5239206 (1993-08-01), Yanai
patent: 5243703 (1993-09-01), Farmwald et al.
patent: 5254883 (1993-10-01), Horowitz et al.
patent: 5256989 (1993-10-01), Parker et al.
patent: 5257294 (1993-10-01), Pinto et al.
patent: 5268639 (1993-12-01), Gasbarro et al.
patent: 5272729 (1993-12-01), Bechade et al.
patent: 5274276 (1993-12-01), Casper et al.
patent: 5276642 (1994-01-01), Lee
patent: 5278460 (1994-01-01), Casper
patent: 5281865 (1994-01-01), Yamashita et al.
patent: 5283631 (1994-02-01), Koerner et al.
patent: 5289580 (1994-02-01), Latif et al.
patent: 5295164 (1994-03-01), Yamamura
patent: 5304952 (1994-04-01), Quiet et al.
patent: 5311481 (1994-05-01), Casper et al.
patent: 5311483 (1994-05-01), Takasugi
patent: 5313431 (1994-05-01), Uruma et al.
patent: 5315269 (1994-05-01), Fujii
patent: 5315388 (1994-05-01), Shen et al.
patent: 5321368 (1994-06-01), Hoelzle
patent: 5337285 (1994-08-01), Ware et al.
patent: 5341405 (1994-08-01), Mallard, Jr.
patent: 5347177 (1994-09-01), Lipp
patent: 5347179 (1994-09-01), Casper et al.
patent: 5355391 (1994-10-01), Horowitz et al.
patent: 5361002 (1994-11-01), Casper
patent: 5367649 (1994-11-01), Cedar
patent: 5379299 (1995-01-01), Schwartz
patent: 5390308 (1995-02-01), Ware et al.
patent: 5400283 (1995-03-01), Raad
patent: 5402389 (1995-03-01), Flannagan et al.
patent: 5408640 (1995-04-01), MacIntyre et al.
patent: 5410263 (1995-04-01), Waizman
patent: 5416436 (1995-05-01), Rainard
patent: 5416909 (1995-05-01), Long et al.
patent: 5420544 (1995-05-01), Ishibashi
patent: 5424687 (1995-06-01), Fukuda
patent: 5428311 (1995-06-01), McClure
patent: 5428317 (1995-06-01), Sanchez et al.
patent: 5430408 (1995-07-01), Ovens et al.
patent: 5430676 (1995-07-01), Ware et al.
patent: 5432823 (1995-07-01), Gasbarro et al.
patent: 5438545 (1995-08-01), Sim
patent: 5440260 (1995-08-01), Hayashi et al.
patent: 5440514 (1995-08-01), Flannagan et al.
patent: 5444667 (1995-08-01), Obara
patent: 5446696 (1995-08-01), Ware et al.
patent: 5448193 (1995-09-01), Baumert et al.
patent: 5451898 (1995-09-01), Johnson
patent: 5457407 (1995-10-01), Shu et al.
patent: 5465076 (1995-11-01), Yamauchi et al.
patent: 5473274 (1995-12-01), Reilly et al.
patent: 5473575 (1995-12-01), Farmwald et al.
patent: 5473639 (1995-12-01), Lee et al.
patent: 5485490 (1996-01-01), Leung et al.
patent: 5488321 (1996-01-01), Johnson
patent: 5489864 (1996-02-01), Ashuri
patent: 5497127 (1996-03-01), Sauer
patent: 5497355 (1996-03-01), Mills et al.
patent: 5498990 (1996-03-01), Leung et al.
patent: 5500808 (1996-03-01), Wang
patent: 5502672 (1996-03-01), Kwon
patent: 5506814 (1996-04-01), Hush et al.
patent: 5508638 (1996-04-01), Cowles et al.
patent: 5513327 (1996-04-01), Farmwald et al.
patent: 5515403 (1996-05-01), Sloan et al.
patent: 5532714 (1996-07-01), Knapp et al.
patent: 5539345 (1996-07-01), Hawkins
patent: 5544124 (1996-08-01), Zagar et al.
patent: 5544203 (1996-08-01), Casasanta et al.
patent: 5550515 (1996-08-01), Liang et al.
patent: 5550783 (1996-08-01), Stephens et al.
patent: 5552727 (1996-09-01), Nakao
patent: 5555429 (1996-09-01), Parkinson et al.
patent: 5557224 (1996-09-01), Wright et al.
patent: 5557781 (1996-09-01), Stones et al.
patent: 5563546 (1996-10-01), Tsukada
patent: 5568075 (1996-10-01), Curran et al.
patent: 5568077 (1996-10-01), Sato et al.
patent: 5572557 (1996-11-01), Aoki
patent: 5572722 (1996-11-01), Vogley
patent: 5574698 (1996-11-01), Raad
patent: 5576645 (1996-11-01), Farwell
patent: 5577079 (1996-11-01), Zenno et al.
patent: 5577236 (1996-11-01), Johnson et al.
patent: 5578940 (1996-11-01), Dillon et al.
patent: 5578941 (1996-11-01), Sher et al.
patent: 5579326 (1996-11-01), McClure
patent: 5581197 (1996-12-01), Motley et al.
patent: 5589788 (1996-12-01), Goto
patent: 5590073 (1996-12-01), Arakawa et al.
patent: 5594690 (1997-01-01), Rothenberger et al.
patent: 5614855 (1997-03-01), Lee et al.
patent: 5619473 (1997-04-01), Hotta
patent: 5621340 (1997-04-01), Lee et al.
patent: 5621690 (1997-04-01), Jungroth et al.
patent: 5621739 (1997-04-01), Sine et al.
patent: 5627780 (1997-05-01), Malhi
patent: 5627791 (1997-05-01), Wright et al.
patent: 5631872 (1997-05-01), Naritake et al.
patent: 5636163 (1997-06-01), Furutani et al.
patent: 5636173 (1997-06-01), Schaefer
patent: 5636174 (1997-06-01), Rao
patent: 5638335 (1997-06-01), Akiyama et al.
patent: 5646904 (1997-07-01), Ohno et al.
patent: 5652530 (1997-07-01), Ashuri
patent: 5657289 (1997-08-01), Hush et al.
patent: 5657481 (1997-08-01), Farmwald et al.
patent: 5663921 (1997-09-01), Pascucci et al.
patent: 5666313 (1997-09-01), Ichiguchi
patent: 5666322 (1997-09-01), Conkle
patent: 5668763 (1997-09-01), Fujioka et al.
patent: 5668774 (1997-09-01), Furatani
patent: 5673005 (1997-09-01), Pricer
patent: 5675274 (199
Dorsey & Whitney LLP
Micro)n Technology, Inc.
Peikari B. James
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