Low power SRAM memory designs has become challenging for portable device applications. Semiconductor/ VLSI industry growth has exponentially demanding low leakage power SRAM designs for high performance chips and microprocessors. To get optimized standard cell memory design for battery operated devices at deep sub micron CMOS technology, a low leakage Asynchronous 8T SRAM is proposed. In this p...

Low-precision data representation is important to reduce storage size and memory access for convolutional neural networks (CNNs). Yet, existing methods have two major limitations: (1) requiring re-training maintain accuracy deep CNNs (2) needing 16-bit floating-point or 8-bit fixed-point a good accuracy. In this article, we propose low-precision (8-bit) (LPFP) quantization method FPGA-based acc...

storaging or transmission of speech signals at very low bit rate is a hot area in the field of speech processing. we used stochastic inter-frame interpolators and vector quantization (vq) as a new method for developing a high quality 1200 bps speech vocoder. the objective and subjecgtive test results show that performance of the new vocoder is compairable with 4800 bps standard vocoders (as celp).

This paper presents an integer discrete cosine transform (IntDCT) with only dyadic values such as k/2n (k, n ∈ N). Although some conventional IntDCTs have been proposed, they are not suitable for lossless-to-lossy image coding in low-bit-word-length (coefficients) due to the degradation of the frequency decomposition performance in the system. First, the proposed M-channel lossless Walsh-Hadama...

In this work we address the common problem of low bit rate image coding, i.e. perceptual quality loss. We propose a novel scheme to tackle this problem. The salient part of this work is to first encode the most important visual features of images extracted from Sigma filtering preprocessing. The preliminary results show that the image decoded by our scheme contains much less artifacts comparing...

The primary goal of this ultra low-power transceiver IC project is to realize an innovative integrated transceiver front-end. It is designed and developed for low bit rate data transfer for general consumer applications and consumes very little power. Introduction Many applications and Wireless Personal Area Network (WPAN) nodes in the ambient intelligent home of the future would require only l...

Under heterogeneous radio conditions, Wireless LAN stations may use different modulation schemes, leading to a heterogeneity of bit rates. In such a situation, 802.11 DCF allocates the same throughput to all stations independently of their transmitting bit rate; as a result, the channel is used by low bit rate stations most of the time, and efficiency is low. In this paper, we propose a more ef...

Good quality video coding for low bit-rate applications is important for transmission over narrow-bandwidth channels and for storage with limited memory capacity. In this work, we develop a previous analysis for image compression at low bit-rates to adapt it to video signals. Improving compression using down-scaling in the spatial and temporal dimensions is examined. We show, both theoretically...