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This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS 1 A Bio-Realistic Analog CMOS Cochlea Filter With

by High Tunability, Ultra-steep Roll-off, Shiwei Wang, Student Member, Thomas Jacob Koickal, Alister Hamilton, Rebecca Cheung, Senior Member, Leslie S. Smith, Senior Member
"... Abstract—This paper presents the design and experimental results of a cochlea filter in analog very large scale integration (VLSI) which highly resembles physiologically measured response of the mammalian cochlea. The filter consists of three specialized sub-filter stages which respectively provide ..."
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owing to its bio-realistic behavior, low power consumption and small size. Index Terms—AnalogVLSI, auditory filter, bio-inspired circuits, CMOS cochlea, floating active inductor. I.

1 FILTER CASCADES AS ANALOGS OF THE COCHLEA

by Richard F. Lyon
"... Wave propagation in the cochlea can be modeled at various levels and for vari-ous purposes. We are interested in making models of cochlear signal processing, in analog or digital VLSI or in software, suitable for supporting improved hear-ing aids, speech-recognition systems, and other engineered hea ..."
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Wave propagation in the cochlea can be modeled at various levels and for vari-ous purposes. We are interested in making models of cochlear signal processing, in analog or digital VLSI or in software, suitable for supporting improved hear-ing aids, speech-recognition systems, and other engineered

Improved Silicon Cochlea using Compatible Lateral Bipolar Transistors

by Andr Van Schaik, Eric Fragnire, Eric Vittoz - in Advances in Neural Information Processing Systems 8 , 1996
"... Analog electronic cochlear models need exponentially scaled filters. CMOS Compatible Lateral Bipolar Transistors (CLBTs) can create exponentially scaled currents when biased using a resistive line with a voltage difference between both ends of the line. Since these CLBTs are independent of the C ..."
Abstract - Cited by 37 (11 self) - Add to MetaCart
Analog electronic cochlear models need exponentially scaled filters. CMOS Compatible Lateral Bipolar Transistors (CLBTs) can create exponentially scaled currents when biased using a resistive line with a voltage difference between both ends of the line. Since these CLBTs are independent

CMOS mixers and polyphase filters for large image rejection

by Farbod Behbahani, Yoji Kishigami, John Leete, Asad A. Abidi - Iowa State University , 2001
"... Abstract—This paper presents an in-depth treatment of mixers and polyphase filters, and how they are used in rejecting the image in transmitters and receivers. A powerful phasor-based analysis is used to explain all common image-reject topologies and their limi-tations, and it is shown how this can ..."
Abstract - Cited by 45 (0 self) - Add to MetaCart
-IF CMOS wideband, low-IF downconversion cir-cuit, which repeatedly rejects the image by 60 dB over the wide band of 3.5 to 20 MHz without trimming or calibration. Index Terms—Analog complex filter, analog polyphase filter, image rejection, quadrature generation, radio receivers. I.

A Mammalian Cochlea-based RF Channelizing Filter

by C. Galbraith, R. White, K. Groshl, G. M. Rebeiz
"... Abstract-A new type of an RF channelizer-filter ’ has been developed at 20-90 MHz. The lilter topology is derived from an electrical-mechanical analogy of the mammalian cochlea. The channelizer response retains the desirable features of the cochlea including multiple-octave frequency coverage, a lar ..."
Abstract - Cited by 6 (1 self) - Add to MetaCart
Abstract-A new type of an RF channelizer-filter ’ has been developed at 20-90 MHz. The lilter topology is derived from an electrical-mechanical analogy of the mammalian cochlea. The channelizer response retains the desirable features of the cochlea including multiple-octave frequency coverage, a

A low-power wide-dynamic-range analog VLSI cochlea

by Rahul Sarpeshkar, Richard F. Lyon, Carver Mead - Analog Integrated Circuits Signal Processing , 1998
"... Abstract. Low-power wide-dynamic-range systems are extremely hard to build. The biological cochlea is one of the most awesome examples of such a system: It can sense sounds over 12 orders of magnitude in intensity, with an estimated power dissipation of only a few tens of microwatts. In this paper, ..."
Abstract - Cited by 21 (6 self) - Add to MetaCart
, we describe an analog electronic cochlea that processes sounds over 6 orders of magnitude in intensity, and that dissipates 0.5 mW. This 117-stage, 100 Hz to 10 KHz cochlea has the widest dynamic range of any arti®cial cochlea built to date. The wide dynamic range is attained through the use of a

An FPGA-Based Electronic Cochlea

by M. P. Leong, Craig T. Jin, Philip H. W. Leong - EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING 2003:7, 629–638 , 2003
"... A module generator which can produce an FPGA-based implementation of an electronic cochlea filter with arbitrary precision is presented. Although hardware implementations of electronic cochlea models have traditionally used analog VLSI as the implementation medium due to their small area, high speed ..."
Abstract - Cited by 6 (1 self) - Add to MetaCart
A module generator which can produce an FPGA-based implementation of an electronic cochlea filter with arbitrary precision is presented. Although hardware implementations of electronic cochlea models have traditionally used analog VLSI as the implementation medium due to their small area, high

CMOS Low-Power Analog Circuit Design

by Christian C. Enz, Eric A. Vittoz
"... This chapter covers device and circuit aspects of low-power analog CMOS circuit design. The fundamental limits constraining the design of low-power circuits are first recalled with an emphasis on the implications of supply voltage reduction. Biasing MOS transistors at very low current provides new f ..."
Abstract - Cited by 22 (0 self) - Add to MetaCart
This chapter covers device and circuit aspects of low-power analog CMOS circuit design. The fundamental limits constraining the design of low-power circuits are first recalled with an emphasis on the implications of supply voltage reduction. Biasing MOS transistors at very low current provides new

A CMOS transconductance-C filter technique for very high frequencies

by Bram Nauta, Student Member - Proposed Ideal −120 Frequency (MHz
"... Abstract-This paper presents CMOS circuits for integrated analog filters at very high frequencies, based on transconductance-C integrators. First a differential transconductance element based on CMOS inverters is described. With this circuit a linear, tunable integrator for very-high-frequency integ ..."
Abstract - Cited by 47 (3 self) - Add to MetaCart
Abstract-This paper presents CMOS circuits for integrated analog filters at very high frequencies, based on transconductance-C integrators. First a differential transconductance element based on CMOS inverters is described. With this circuit a linear, tunable integrator for very

AER EAR: A matched silicon cochlea pair with address event representation interface

by Vincent Chan, Shih-Chii Liu, André van Schaik - IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I , 2007
"... In this paper, we present an analog integrated circuit containing a matched pair of silicon cochleae and an address event interface. Each section of the cochlea, modeled by a second-order low-pass filter, is followed by a simplified inner hair cell circuit and a spiking neuron circuit. When the neur ..."
Abstract - Cited by 18 (1 self) - Add to MetaCart
In this paper, we present an analog integrated circuit containing a matched pair of silicon cochleae and an address event interface. Each section of the cochlea, modeled by a second-order low-pass filter, is followed by a simplified inner hair cell circuit and a spiking neuron circuit. When
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