Recent Patents on Signal Processing (Discontinued) - Volume 3, Issue 1, 2013

This paper presents method of vibration based continuous monitoring system and analysis using machine learning approach. The reliable and effective performance of a braking system is fundamental operation of most vehicles. This study provides insight of fault diagnosis of hydraulic braking system by vibration analysis. A hydraulic brake system test rig was fabricated. The vibration signals were acquired from a piezo Read More

A number of capacitance readout systems presented in the literature and covered by recent patents are briefly described while a biosensor array readout system developed by the authors is presented in this paper. This biosensor array readout system is based on a charge sensitive amplifier that estimates accurately the difference between a selfconfigurable reference capacitance and a biosensor. In the specific implementati Read More

In this paper, a new patent technique was developed to support the geographical positioning planning and RF power calculation of Radio Base Stations (RBS) for the Cellular Mobile Systems using geoprocessed images of a mountain urban environment. The region of study is a neighborhood of Belo Horizonte City, in Minas Gerais State, Brazil. The mountain urban environment was considered in order to map the electromagne Read More

Rapid development of broadband multimedia services in the Internet and the demand for higher quality video implies that Quality of Experience (QoE) measurement for transmitted video sequences over packet error prone channels is a necessity. Due to the intrinsic properties of packet error prone channels in imposing quality degradation on the transmitted media and also, costly and time-consuming nature of subjective quali Read More

Significant scientific efforts are constantly invested in the attempts to develop photonic circuitry integrated in microelectronic chip. Such circuitry should be capable of realizing fundamental processing building blocks such as modulators (or transistors) and logic gates in order to improve the performance of an optics communication short and/or long range links. The improvement is to be obtained in the sense of reduced pow Read More

A measurement system is presented for evaluating the characteristics of both sides of an LED wafer using electroluminescence (EL). Integrating spheres (IS), photodiodes, pico-ammeters, spectrometers were installed in the front and rear sides to measure optical characteristics with minimum EL loss. A probe was connected to a source meter with a thin wire and attached using a transparent fixture in the front IS. The Read More

The wavelet transform converts a signal in one domain into another for better understanding of the structure and features of any given signal. Recently, performance of various denoising methods has been analyzed and the result shows that Fourth order moment based denoising provides better performance, in the same study the proposed modified Fourth order moment denoising provides better Bit Error Rate (BER) perf Read More