Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1990-09-24
1992-02-25
Hudspeth, David
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307443, 307468, H03R 19177
Patent
active
050916610
ABSTRACT:
Methods and apparatus are provided for reducing the possibility of erroneous operation in integrated circuit structures such as Programmable Interconnector arrays (PIAs) in high-density Programmable Logic Devices (PLDs) due to unintentional transmission of coherent switching transients from word lines to bit lines. The logical states of appropriate PIA word lines are inverted in a way that reduces the possibility of coherent switching of multiple word lines in the word lines and bit line swithcing matrix. This technique requires little or no area overhead and is completely transparent to the user. It changes the perforamnce of the PLDs so that situations in which worst-case conditions apply become highly unlikely, whereas these same worst-case conditions are very likely to arise in prior PLDs.
REFERENCES:
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patent: 4761572 (1988-08-01), Tanizawa
patent: 4774421 (1988-09-01), Hartmann et al.
patent: 4857765 (1989-08-01), Cahill et al.
patent: 4912342 (1990-03-01), Wong et al.
patent: 4965474 (1990-10-01), Childers et al.
Altera Corporation
Hudspeth David
Jackson Robert R.
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