The line jitter of CCD images can considerably influence the precision and resolution of a high-accuracy vision-based automated inspection system. We report the experimental studies on the line jitter of CCD images. By use of a method of Harr wavelet transform, correlation, and statistics analysis to detect the line jitter of subpixels, the experiment reveals that the line jitter exhibits inher...

For the problem that general characteristic impedance measurement instrument is difficult to measure the size of clock jitter, this paper proposes a measurement algorithm to achieve clock jitter based on sequential equivalent sampling. First, according to the relationship between the equivalent sampling signal and the average signal, we count up the probability density distribution of the clock...

Problem Statement. Everyone will agree that a key issue in the design of multi-GHz interface devices is jitter performance. To characterize jitter performance, do you measure timing jitter or period jitter of the device? Should the Bit Error Rate performance of the device also be tested? Is there any way to shorten the overall test time? And as always, is there a way to reduce the test cost? Fu...

As CMOS technology has scaled, supply voltage have dropped, chip power consumption has increased, and clock frequency/data rates increase effects of jitter become critical and jitter budget get tighter. Knowing how to inject/isolate jitter components with the time convolution/correlation method will enhance designer ability to determine and locate the root causes so that one can then proceed to...

Objectives: The present study aims to compare acoustic voice parameters in patients with vocal cord nodules, polyps, and normal subjects.  Methods: In this cross-sectional case-control study, the participants were selected by convenience sampling, including 30 patients with vocal polyps group, 38 patients with vocal nodules for the second group, and 42 participants without voice pathologies a...

This paper presents a new jitter tolerance model that includes the effect of deterministic jitter in interconnects. First, it is shown by experiment that the deterministic jitter in a cable can significantly affect its jitter tolerance. Then, the new jitter tolerance model is verified with experimental data on cables of various lengths, using both PRBS and T11 test patterns.

When a shared channel or packet switched network is used for transmission (e.g. WLAN, HSPA (Turbo-3G), LTE (4G)), it introduces variance in the delay of packets. This variance is called jitter. This jitter can lead to significant degradation of quality in real-time services if it is not properly handled. High Speed Packet Access (HSPA) is an extension to the third Generation W-CDMA cellular net...

Clock (CLK) generators and synthesizers form the pulse of a complex digital system and errors in a clock's signal quality can have wide-ranging effect. One of the most important performance measurements is clock jitter. Jitter is defined as "the short-term variation of a signal with respect to its ideal position in time." In a clock generator chip, there are many factors which contribute to out...

There exist a Model of Proportional Jitter Differentiated Service and Proportional Delay Differentiated Serivce, which provides proportional jitter or proportional delay between different classes. This first approach is very appropriated for high-speed networks because it does not require the implementation of the proportional jitter scheduling algorithms at all the routers in the network but o...