A 200-Mbps 2-Gbps continuous-rate clock-anddata-recovery (CDR) circuit using half-rate clocking is presented. To detect the data with wide-range bit rates, a frequency tracing circuit (FTC) is used to aid the frequency acquisition. A wide-range and low gain voltage-controlled oscillator (VCO) is also presented by using analog and digital controlled mechanisms. A two-level bang-bang phase detect...

We introduce a new microarchitectural timing covert channel using the processor memory order buffer (MOB). Specifically, we show how an adversary can infer the state of a spy process on the Intel 64 and IA-32 architectures when predicting dependent loads through the store buffer, called 4K-aliasing. The 4K-aliasing event is a side-effect of memory disambiguation misprediction while handling wri...

Optical communications link have evolved from lengthy fibers to wireless system such as intersatellite transmission system, for which transmission capacity and distance of optical signal are always an important consideration factor to improve the performance of the optical wireless transmission system. This paper investigates the effect of bit rates on link distance. We have taken bit rates fro...

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—This paper presents a capacitively coupled digital isolator with superior Common Mode Transient Immunity (CMTI) and high performances. This work adopts the On-Off Keying (OOK) architecture to cancel influence of (CMT) increase speed In addition, it fast-transient-response for Schmitt trigger further improving Besides, this proposes gate-cross-coupled common-gate pre-amplifier an active zero lo...

We present a new compact, power-efficient, and scalable VLSI array for the first Lempel-Ziv algorithm to be used in high-speed wireless data communication systems. This is part of a project at the University of Massachusetts to develop reliable and secure high-speed wireless LANs by exploiting novel VLSI technology, communications algorithms and network protocols. For wireless LANs to be seamle...

BACKGROUND The inclusion of prayer-for-health (PFH) in the definition of complementary alternative medicine (CAM) has resulted in higher levels of CAM use. The objective of this study was to assess PFH and CAM use among breast cancer patients undergoing chemotherapy. METHODS A cross-sectional study was performed at two chemotherapy providers. Patients were questioned about use of three catego...