Balanced programmable delay element

Details Balanced programmable delay element Balanced programmable delay element

2005-02-22

2005-02-22

Nguyen, Linh My (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Having specific delay in producing output waveform

C327S281000

Reexamination Certificate

active

06859082

ABSTRACT:
Balanced programmable delay element that has a variable incremental delay. A first inverter is provided that has a first electrode for receiving an input signal, a second electrode, a third electrode, and a fourth electrode for providing an output signal and that has a propagation delay that is dependent on a first current. A second inverter is provided that has a first electrode coupled to the fourth electrode of the first inverter for receiving the output signal of the first inverter, a second electrode, a third electrode, and a fourth electrode for providing an output signal and that has a propagation delay that is dependent on a second current. A current switch is coupled to the first inverter, the second inverter, receives at least two control signals, and responsive thereto, selectively varies the incremental delay of the delay element.

REFERENCES:
patent: 5731727 (1998-03-01), Iwamoto et al.
patent: 5790612 (1998-08-01), Chengson et al.
patent: 6163195 (2000-12-01), Jefferson
patent: 6188637 (2001-02-01), Ooishi

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