Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Reexamination Certificate
2006-05-02
2006-05-02
Ton, My-Trang Nu (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
Reexamination Certificate
active
07038499
ABSTRACT:
A system and method for a programmable threshold detector. A programmable threshold detector circuit is described comprising an offset current generator circuit, a comparator circuit, a programmable delay circuit, and a counter timer coupled together. The offset current generator circuit generates a programmable offset current that is associated with a programmable offset voltage. The comparator circuit compares an input signal to a programmable offset voltage. The programmable delay circuit provides a capacitance controlled time delay before asserting a standby mode for the device when the input signal is less than the programmable offset voltage. The counter timer provides a counter controlled time delay before deasserting the standby mode when the input signal is greater than the programmable offset voltage.
REFERENCES:
patent: 4969164 (1990-11-01), Mehta et al.
patent: 6148135 (2000-11-01), Suzuki
patent: 6911858 (2005-06-01), Mori
National Semiconductor Corporation
Nu Ton My-Trang
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