Concept

Electric clock

Related publications (52)

Laser‐Pumped Double‐Resonance Clock Using a Micro‐Fabricated Cell

In view of a novel miniature atomic clock with low power consumption, we investigate on the potential for a laserpumped double-resonance atomic clock based on a microfabricated Rb vapor cell. We obtain a clock short-term stability of 2x10-11 τ-1/2 and the ...

2011

Segment number and axial identity in a segmentation clock period mutant.

Andrew Charles Oates

A species-specific number of segments is a hallmark of the vertebrate body plan. The first segmental structures in the vertebrate embryo are the somites, which bud sequentially from the growing presomitic mesoderm (PSM). The Clock and Wavefront model for s ...

2010

Clock and Power Distribution Networks for 3-D ICs

Giovanni De Micheli, Vasileios Pavlidis

Global interconnect design for threedimensional integrated circuits is a crucial task. Despitethe importance of this task, limited results related to global issues have been presented. Challenges in reliably distributing power, ground, and the clock signal ...

2009

Robust Synchronization of Absolute and Difference Clocks over Networks

Satish Babu Korada

We present a detailed re-examination of the problem of inexpensive yet accurate clock synchronization for networked devices. Based on an empirically validated, parsimonious abstraction of the CPU oscillator as a timing source, accessible via the TSC regist ...

2009

A simple and accurate method for calibrating the oscillation amplitude of tuning-fork based AFM sensors

Majed Chergui, Andrea Callegari, Jinquan Liu

We have developed a simple and accurate method for calibrating the amplitude of vibration of quartz tuning fork sensors commonly used in at. force- and near field optical-microscopy. Unlike interferometric methods, which require a complex optical setup, th ...

2008

A Power-Efficient Clock and Data Recovery Circuit in 0.18-um CMOS Technology for Multi-Channel Short-Haul Optical Data Communication

Seyed Armin Tajalli, Yusuf Leblebici, Paul Victor Georges Muller

This paper studies the specifications of gated-oscillator-based clock and data recovery circuits (GO CDRs) designed for short haul optical data communication systems. Jitter tolerance (JTOL) and frequency tolerance (FTOL) are analyzed and modeled as two ma ...

2007

A multichannel 3.5mW/Gbps/channel gated oscillator based CDR in a 0.18µm digital CMOS technology

Seyed Armin Tajalli, Yusuf Leblebici, Paul Victor Georges Muller

This article presents a very low-power clock and data recovery (CDR) circuit with 8 parallel channels achieving an aggregate data rate of 20 Gbps. A structural top-down design methodology has been applied to minimize the power dissipation while satisfying ...

2005

Dynamically Trading Frequency for Complexity in a GALS Microprocessor

Microprocessors are traditionally designed to provide “best overall” performance across a wide range of applications and operating environments. Several groups have proposed hardware techniques that save energy by “downsizing” hardware resources that are u ...

2004

Symmetrically arranged quartz tuning fork with soft cantilever for intermittent contact mode atomic force microscopy

Nico de Rooij, Terunobu Akiyama

The dynamic mode atomic force microscopy based on a microfabricated cantilever and a commercial quartz tuning fork was probed. The probe was self-sensing and self-actuating. The tuning fork performed the function of a force sensor. The amplitude and freque ...

2003

Self-sensing and self-actuating probe based on quartz tuning fork combined with microfabricated cantilever for dynamic mode atomic force microscopy

Nico de Rooij, Terunobu Akiyama

A novel probe based on a commercial quartz tuning fork and a microfabricated cantilever is presented. The U-shaped cantilever with a monolithic tip is combined with the tuning fork in a symmetrical arrangement, such that each of the two legs of the cantile ...

2003

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