Programmable phase shift circuitry

Details Programmable phase shift circuitry Programmable phase shift circuitry

2006-09-19

2006-09-19

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S147000, C327S150000, C327S159000, C331S025000

Reexamination Certificate

active

07109765

ABSTRACT:
A circuit provides a programmable phase shift feature, where the phase shift is programmably selectable by a user. This circuitry may be incorporated in a programmable logic device (PLD) or field programmable gate array (FPGA) to provide additional programmability features. The programmable phase shift circuitry may be implemented within a phase locked loop (PLL) or delay locked loop (DLL) circuit.

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