Programmable digitizer with adjustable sampling rate and trigger

Details Programmable digitizer with adjustable sampling rate and trigger Programmable digitizer with adjustable sampling rate and trigger

1998-04-24

2000-02-29

Williams, Howard L.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

395889, H03M 112, G06F 1300

Patent

active

060314796

ABSTRACT:
A digitizer can be programmed to digitize an ANALOG signal with a complex frequency pattern determined in response to set of trigger signals. The digitizer includes an addressable packet memory storing a set of data packets and produces one of its stored data packets as output when addressed. The output data packet includes both PERIOD and MODE data fields. The digitizer also incudes an analog-to-digital converter for digitizing the ANALOG signal at the frequency controlled by the PERIOD data output of the packet memory. The MODE data output of the packet memory tells a trigger logic circuit how to choose a next packet memory address and selects one of the trigger signals to tell the trigger logic circuit when to change the packet memory address so as to alter the digitizing frequency.

REFERENCES:
patent: 4283713 (1981-08-01), Phillipp
patent: 4755951 (1988-07-01), Hollister
patent: 4791404 (1988-12-01), Hollister
patent: 4799165 (1989-01-01), Hollister et al.
patent: 4858142 (1989-08-01), Jenq et al.
patent: 4956798 (1990-09-01), Dinteman
patent: 5206944 (1993-04-01), Pilkenton
patent: 5243343 (1993-09-01), Moriyasu
patent: 5930735 (1999-07-01), Pun

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