The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2000
Filed:
May. 05, 1998
G N Prasanna, Clinton, NJ (US);
Lucent Technology, Inc., Murray Hill, NJ (US);
Abstract
An arrangement for reducing power consumption in a flash A/D converter uses a predictor module to compute the 'next' digital output value (i.e., s(n+1)) and then uses this value to regulate the number of individual comparators required to perform an accurate conversion. The predictor module is disposed as a feedback element between the converter output and the comparator array. Based upon the prediction, the module transmits a control signal to the comparator array, turning 'on' and 'off' subsets of the comparators forming the array. By maintaining a large number of the comparators in the 'off' state (usually, only half of the comparators need to be enabled), a significant power savings can be realized.