This paper deals with the generation, measurement and modeling of the jitter encountered in the signals of a testhead board for automatic test equipment (ATE). A novel model is proposed for the jitter; this model takes into account the radiated electromagnetic interference (EMI) noise in the head of an ATE. The RMS value of the jitter is measured at the output signal of the testhead board to va...

Jitter transfer analysis using discrete z-domain transfer functions of a high order giga-bit rate phase locked loop (PLL) is presented. An impulse invariance method that produces the same z-domain equations as that of the differential analysis is first shown for a second order loop. The condition is obtained. Then a closed form third order loop equation in discrete zdomain is derived. Stability...

Reference clock jitter sets the ultimate limit on the bit error ratio of a serial data system. The traditional techniques for quantifying jitter on clock signals don’t help system designers estimate the clock’s contribution to the total jitter defined at a bit error ratio. New techniques are being introduced to model how transmitters and receivers use reference clocks so that the system RJ and ...

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...

Multimedia traffic which are generally VBR in nature require efficient adaptive resource allocation schemes when supported over Mobile Networks. Admission control schemes that satisfy the desired/guaranteed QoS for multimedia applications under different traffic loads to achieve high utilization need to be designed. Packet level QoS parameters include delay, packet loss probability and jitter w...

We assessed the e ects of network latency and jitter on a cooperative tele-operation task in a collaborative virtual environment. Two remote partners worked together to manipulate shared virtual objects over a network. The task was to minimize the time to transfer a ring through one of four paths with the least number of collisions. The performance of human subjects was measured and analyzed qu...

We assessed the e ects of network latency and jitter on a cooperative tele-operation task in a collaborative virtual environment. Two remote partners worked together to manipulate shared virtual objects over a network. The task was to minimize the time to transfer a ring through one of four paths with the least number of collisions. The performance of human subjects was measured and analyzed qu...

302 0740-7475/04/$20.00 © 2004 IEEE Copublished by the IEEE CS and the IEEE CASS IEEE Design & Test of Computers THE RECENT DEPLOYMENT of gigabit-per-second (Gbps) serial I/O interconnects aims at overcoming data transfer bottlenecks resulting from the limited ability to increase chip pin counts in parallel bus architectures. Gigabit-per-second data rates in today’s asynchronous I/O interconnec...