Communications: electrical – Continuously variable indicating – With meter reading
Patent
1996-05-07
2000-08-08
Holloway, III, Edwin C.
Communications: electrical
Continuously variable indicating
With meter reading
455343, H04Q 700
Patent
active
061008141
ABSTRACT:
A wake up detector system is provided having a device with a sleep mode of operation to conserve energy and an awake mode operation, and an input digital data stream having a frequency. The system includes an analog filter for removing noise, and for passing the input digital data stream such that the passed input digital data stream includes a transient response consisting of an oscillating signal of increasing peak-to-peak amplitude. The system further includes a switch for comparing the transient response of the passed input digital data stream with a threshold voltage, and for switching the device from the sleep mode of operation to the awake mode of operation when the transient response of the passed input digital data stream reaches the threshold voltage.
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Holloway III Edwin C.
Lear Automotive Dearborn Inc.
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