Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Having specific delay in producing output waveform
Reexamination Certificate
2004-09-22
2008-03-25
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Having specific delay in producing output waveform
C327S263000, C327S287000
Reexamination Certificate
active
07348821
ABSTRACT:
A device includes a first circuit having rows and columns of delay cells to generate delayed signals based on an input signal. The delayed signals are selectable and have a different delay from one another with respect to the input signal. The device is programmable based on a delay code. Different values of the delay code allow the device to select different delayed signals. The device may select one of the delayed signals from the first circuit for use as a timing signal in a second circuit of the device. The device may also use the delayed signals from the first circuit to evaluate a clock and data recovery circuit. In an embodiment, the circuits may be located on a single die.
REFERENCES:
patent: 5144174 (1992-09-01), Murakami
patent: 6160856 (2000-12-01), Gershon
patent: 6400735 (2002-06-01), Percey
patent: 6424199 (2002-07-01), Taguchi et al.
patent: 6642760 (2003-11-01), Alon et al.
patent: 6727738 (2004-04-01), Tsukikawa
patent: 6735148 (2004-05-01), Gomm
patent: 6784714 (2004-08-01), Nakamura
patent: 6804165 (2004-10-01), Schrogmeier et al.
patent: 6958640 (2005-10-01), Lee et al.
patent: 2002/0130691 (2002-09-01), Silvestri
Maneatis, John G., “Low-Jitter Process-Independent DLL and PLL Based on Self-Biased Techniques”,IEEE Journal of Solid-State Circuits,31(11), (Nov. 1996), 1723-1732.
Noda, H, et al., “An on-chip timing adjuster with sub-100-ps resolution for a high-speed DRAM interface”,Digest of Technical Papers. 1998 Symposium on VLSI Circuits,(Jun. 11-13, 1998), 62-63.
Karnik Tanay
Lee KyeHyung
Paillet Fabrice
Rennie David
Xu Jianping
Intel Corporation
Le Dinh T.
Schwegman Lundberg & Woessner, P.A.
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