Radio receivers should be robust to large out-of-band blockers with small degradation in their sensitivity. N-path mixers can be used as mixer-first-receivers [1] with good linearity and RF filtering [2]. However, 1/f noise calls for large active device sizes for IF circuits and high power consumption. The 1/f noise issue can be relaxed by having RF gain. However, to avoid desensitization by la...

Pupil filters, represented by binary phase modulation, have been applied to extend the field of view of a light-sheet fluorescence microscope. Optimization has been used, first numerically to calculate the optimum filter structure and then experimentally, to scale and align the numerically synthesized filter in the microscope. A significant practical extension of the field of view has been obse...

The physiology of human visual perception helps explain different uses for color and luminance in visual arts. When visual fields are isoluminant, they look the same to our luminance processing pathway, while potentially looking quite different to the color processing path. This creates a perceptual tension exploited by skilled artists. In this paper, we show how reproducing a target color usin...

The potential capacity gains of coordinated processing in the reverse link of a cellular system are evaluated. Three different matched filter-based receiver schemes, successive intra-cell interference cancellation, successive intraand intercell interference cancellation, and centralized successive interference cancellation, are analyzed considering different path loss exponents and various limi...

Bidirectional single longitudinal mode fiber ring laser have advantages and potential in optical sensing, especially angular velocity sensing. The current methods for implementing bidirectional cannot ensure complete reciprocity the path, side suppression ratio needs to be increased, while linewidth is relatively wide. This paper proposes a combined filtering structure using bandpass filter cas...

In this paper, a new high speed control circuit is proposed which will act as a critical path for the data which will go from input to output to improve the performance of wave pipelining circuits The wave pipelining is a method of high performance circuit designs which implements pipelining in logic without the use of intermediate registers. Wave pipelining has been widely used in the past few...

This paper presents two techniques for the design of digital filters with wordlength-constrained coefficients, the bit-flipping algorithm improved since it was first presented in [l] and the Downhill Simplex Method [2] modified to deliver fixed-point filter coefficients. Both techniques can be applied to design of filter coefficients from scratch or to the optimisation of their floatingpoint ve...

The polyphase IIR N-path structure based on the N-order allpasses is very attractive for high quality fractional-band filters, as high attenuation and small passband ripples can be achieved for much less coefficients than other filter structures. However its general form suffers from spikes in the stopband independent from the coefficient values. The paper presents alternative ways to those fou...

We propose a novel filtering technique capable of reducing the multiplicative noise in ultrasound images that is an extension of the denoising algorithms based on the concept of digital paths. In this approach, the filter weights are calculated taking into account the similarity between pixel intensities that belongs to the local neighborhood of the processed pixel, which is called a path. The ...

Demand for low-power low-voltage integrated circuits (ICs) has rapidly grown due to the increasing importance of portable equipment in all market segments including telecommunications, computers, and consumer electronics. The need for low-voltage ICs is also motivated by the new submicron CMOS technology scaling that requires all transistor' s gate-to-source (V GS) voltage to operate in less th...