Intel Corporation

Wootaek Lim

Muhammad M Khellah

Charles Augustine

Suyoung Bang

Eric C Samson

Tobias Bocklet

Somnath Paul

Turbo Majumder

David Pearce

A distributed and scalable all-digital LDO (D-DLDO) voltage regulator allowing rapid scaling across technology nodes. The distributed DLDO includes many tillable DLDO units regulating a single supply voltage with a shared power distribution network (PDN). The D-DLDO includes an all-digital proportional-integral-derivative (PID) controller that receives a first code indicative of a voltage behavior on a power supply rail. A droop detector is provided to compare the first code with a threshold to determine a droop event, wherein information about the droop event is provided to the PID controller, wherein the PID controller generates a second code according to the first code and the information about the droop event. The DLDO includes a plurality of power gates that receive the second code.

Distributed and scalable all-digital low dropout integrated voltage regulator

An all-digital voltage monitor (ADVM) generates a multi-bit output code that changes in proportion to a voltage being monitored, by leveraging the voltage impact on a gate delay. ADVM utilizes a simple delay chain, which receives a clock-cycle-long pulse every clock cycle, such that the monitored supply voltage is sampled for one full cycle every cycle. The outputs of all delay cells of the delay chain collectively represents a current voltage state as a digital thermometer code. In AVDM, a voltage droop event thus results in a decrease in the output code from a nominal value, while an overshoot results in an increase in the output code.

All-digital voltage monitor (ADVM) with single-cycle latency

A system, article, and method provide temporal-domain feature extraction for automatic speech recognition.

Method and system of temporal-domain feature extraction for automatic speech recognition

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Ann Arbor, MI, United States of America

Wootaek Lim