Stanford Research Systems phone: (408)744-9040 www.thinkSRS.com Lock-in amplifiers are used to detect and measure very small AC signalsall the way down to a few nanovolts. Accurate measurements may be made even when the small signal is obscured by noise sources many thousands of times larger. Lock-in amplifiers use a technique known as phase-sensitive detection to single out the component of t...

Phase Lock Loop (PLL) is major analog circuit used for many different communication applications such as frequency synthesizer, radio, computer, clock generation and recovery, global positioning system etc. Therefore, the selection criteria for the desired PLL design is a critical and time consuming issue. This paper applies selection of proposed type of PLL for the desired application and anal...

We study indented spherical colloids, interacting via depletion forces. These systems exhibit liquid-vapor phase transitions whose properties are determined by a combination of strong "lock-and-key" bonds and weaker nonspecific interactions. As the propensity for lock-and-key binding increases, the critical point moves to significantly lower density, and the coexisting phases change their struc...

A safe and deadlock free lock policy is introduced, called pre-analysis locking. Pre-analysis locking is based on an efficient geometric algorithm which inserts lock and unlock operations into the transactions. Pre-analysis locking is the first safe and deadlock free general locking policy which is not a variant of two-phase locking. It is an approach conceptually different from policies follow...

Index Terms Computer Science [1] Fahim, A. M. And Elmasry, M. I. 2003. A Fast Lock Digital Phase-locked-loop Architecture For Wireless Applications, Ieee Transactions On Circuits And Systems-ii: Analog And Digital Signal Processing, Vol. 50, No. 2, Feb. , 2003. [2] Saber, M. , Jitsumatsu,y. And Khan, M. t. a. 2010. Design And Implementation Of Low Power Digital Phase-locked Loop, Proceedings Of...