Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1988-05-05
1989-10-03
Hudspeth, David
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307578, 307303, H03K 19177
Patent
active
048719307
ABSTRACT:
A programmable logic device having a relatively small number of programmable product terms ("P-terms") feeding each fixed combinatorial logic device, and additional "expander" programmable P-terms which do not directly feed a fixed device. Relatively simple logic functions can be performed by suitably programming the P-terms feeding the fixed devices. More complex logic functions can be performed by suitably programming the required number of expander P-terms, and then combining the outputs of those P-terms by means of another P-term. In addition, a programmable interconnect array is provided to allow certain inputs to the device to be applied to any programmable portion of the device, and also to allow the outputs of at least one of the fixed devices to be also applied to any programmable portion of the device.
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Hartmann Robert F.
Kopec, Jr. Stanley J.
So Hock-Chuen
Wong Sau-Ching
Altera Corporation
Hudspeth David
Jackson Robert R.
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