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A Low-Power Acoustic Periodicity Detector Chip for Voice and Engine Detection
| Content Provider | CiteSeerX |
|---|---|
| Author | Abdalla, Hisham Horiuchi, Timothy |
| Abstract | Abstract—The detection of voices or the rumble of engines is a desirable function in many different devices from toys to smart homes to military applications. Typical approaches involving frequency-domain computation are quite computationally intensive and require a significant power and computational budget. In an effort to construct a very low-power detector capable of acting as a wake-up signal for other systems, we have designed a simple, low-power (1.5 µ W) analog VLSI circuit that detects periodicity in the time-domain envelope of the acoustic signal. The circuit was fabricated in a commercially 1.5 µ m available CMOS process. Index Terms — inter-spike intervals, periodicity detection, subthreshold V I. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Engine Detection Low-power Acoustic Periodicity Detector Chip Wake-up Signal Low-power Detector Time-domain Envelope Acoustic Signal Typical Approach Many Different Device Military Application Periodicity Detection Index Term Inter-spike Interval Analog Vlsi Circuit Frequency-domain Computation Desirable Function Computational Budget Available Cmos Process Significant Power |
| Content Type | Text |
