Title :
Low-power speech processing based upon floating-gate circuits
Author :
Smith, Paul D. ; Graham, David ; Hasler, Paul
Author_Institution :
Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
This paper describes our current efforts towards creating cooperative analog/digital signal processing (CADSP) systems for auditory sensor and signal processing applications. We address resolution issues that affect the choice of signal processing algorithms arriving from an analog sensor. We discuss current analog circuit approaches towards the front-end signal processing by reviewing major programmable analog building blocks and showing how they can be interconnected to create a complete system. We also discuss our current analog signal processing front-end system for speech recognition. Experimental data is presented from circuits fabricated using a 0.5 μm nwell CMOS process available through MOSIS.
Keywords :
CMOS analogue integrated circuits; analogue processing circuits; array signal processing; audio signal processing; signal resolution; speech processing; speech recognition; CMOS process; IC circuit fabrication; MOSIS; analog front-end programmable analog circuit; analog sensor block; auditory sensor; complementary metal-oxide-semiconductor; cooperative analog-digital signal processing; floating-gate circuit; low-power speech processing; metal oxide semiconductor implementation service; signal processing application; signal resolution; speech recognition; Analog circuits; CMOS process; Digital signal processing; Integrated circuit interconnections; Sensor phenomena and characterization; Sensor systems and applications; Signal processing algorithms; Signal resolution; Speech processing; Speech recognition;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on
Print_ISBN :
0-7803-8104-1
DOI :
10.1109/ACSSC.2003.1292336
