A micropower analog circuit implementation of hidden Markov model state decoding

被引：9

作者：

Lazzaro, J ^{[1
]}

Wawrzynek, J ^{[1
]}

Lippmann, RP ^{[1
]}

机构：

[1] MIT,LINCOLN LAB,LEXINGTON,MA 02173

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 1997年 / 32卷 / 08期

关键词：

analog integrated circuits; hidden Markov models; micropower circuit design; speech recognition; weak-inversion MOSFET circuits;

D O I：

10.1109/4.604076

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We describe the implementation of a hidden Markov model state decoding system, a component for a wordspotting speech recognition system. The key specification for this state decoder design is microwatt power dissipation: this requirement led to a continuous-time, analog circuit implementation. We describe the tradeoffs inherent in the choice of an analog design and explain the mapping of the discrete-time state decoding algorithm into the continuous domain. We characterize the operation of a ten-word (81-state) state decoder test chip.

引用

页码：1200 / 1209

页数：10

共 9 条

[1]

Bourlard H. A., 1994, Connectionist speech recognition: a hybrid approach

[2]

COGGINS R, 1995, IEEE MICRO, V15, P8

[3]

Delbruck T., 1991, P INT JOINT C NEURAL, V1, P475

[4]

LIPPMANN RP, 1987, P INT C NEUR NETW IC, V4, P417

[5]

LIPPMANN RP, 1994, P INT C AC SPEECH SI, V1, P389

[6] AN INTEGRATED ANALOG CMOS VITERBI DETECTOR FOR DIGITAL MAGNETIC RECORDING [J].

MATTHEWS, TW ;

SPENCER, RR .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 1993, 28 (12) :1294-1302

[7]

OGUEY H, 1996, P EUR SOL STAT CIRC, P104

[8]

VANSCHAIK A, 1996, ADV NEURAL INFORMATI

[9] IMPROVED IMPLEMENTATION OF THE SILICON COCHLEA [J].

WATTS, L ;

KERNS, DA ;

LYON, RF ;

MEAD, CA .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 1992, 27 (05) :692-700

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