Stringent memory access and search speed requirements are two of the main bottlenecks in wire speed processing. Most viable search engines are implemented in content addressable memories (CAMs). CAMs have high operational speed advantage over other memory search algorithms. However, this performance advantage comes with a price of higher silicon area, and higher power consumption. Ternary CAMs ...

The motivation behind this work is to show that InP-based intersubband lasers with high power can be realized on substrates significant lattice mismatch. This a primary concern for the integration of mid-infrared active optoelectronic devices low-cost photonic platforms, such as Si. As evidence, an quantum cascade laser structure was grown GaAs substrate, which has large (4%) mismatch respect I...

A number of statistical tests for detecting population growth are described. We compared the statistical power of these tests with that of others available in the literature. The tests evaluated fall into three categories: those tests based on the distribution of the mutation frequencies, on the haplotype distribution, and on the mismatch distribution. We found that, for an extensive variety of...

High sidelobe level and direction of arrival (DOA) estimation sensitivity are two major disadvantages of the Capon beamforming. To deal with these problems, this paper gives an overview of a series of robust Capon beamforming methods via shaping beam pattern, including sparse Capon beamforming, weighted sparse Capon beamforming, mixed norm based Capon beamforming, total variation minimization b...

The purpose of this study was to investigate the impact of tube potential (kVp) on the CT number (HU) to proton stopping power ratio (PSPR) conversion. The range and dosimetric change introduced by a mismatch in kVp used for the CT scan and the HU to PSPR table, based on a specific kVp, used to calculate dose are analyzed. Three HU to PSPR curves, corresponding to three kVp settings on the CT s...

This paper describes a low-jitter delay-locked loop (DLL)-based clock generator for dynamic frequency scaling in the extendable instruction set computing (EISC) processor. The DLL-based clock generator provides the system clock with frequencies of the reference clock, according to the workload of the EISC processor. The proposed self-calibration method and a phase detector with an auxiliary cha...

We propose and experimentally demonstrate a novel second-harmonic-generation (SHG) scheme capable of supporting temperature-insensitive phase-matching (PM) at various laser wavelengths. This versatile temperature-insensitive PM is designed by using two cascaded crystals with opposite signs of temperature derivation of phase-mismatch, in which the temperature-induced phase-mismatch in the first ...

A video communication system based on combined source-and channel coding is proposed. The proposed system uses a subband video coder structure in combination with power-constrained channel-optimized vector quantiza-tion (PCCOVQ) to achieve eecient and robust transmission of the video signal over a channel with multidimensional PAM signaling. The side information is protected by using a suucient...

Properties of scalar quantization with rth power distortion and constrained Rényi entropy of order α ∈ (0, 1) are investigated. For an asymptotically (high-rate) optimal sequence of quantizers, the contribution to the Rényi entropy due to source values in a fixed interval is identified in terms of the “entropy density” of the quantizer sequence. This extends results related to the well-known po...

Uncertainties in source color measurements with a tristimulus colorimeter are estimated for calibration factors determined, based on a known source spectral distribution or on accurate measurements of the spectral responsivities of the colorimeter channels. Application is to the National Institute of Standards and Technology (NIST) colorimeter and an International Commission on Illumination (CI...