Results 201 to 210 of about 34,335 (263)
Some of the next articles are maybe not open access.
Synchronizers based on carrier phase lock Loop and on symbol phase lock loop
2008 15th IEEE International Conference on Electronics, Circuits and Systems, 2008The symbol synchronizer recoveries the clock and after, with it, samples and retimes the data. We present two synchronizer groups, the first based on filter with carrier phase lock loop (CPLL) and the second based on symbol phase lock loop (SPLL). Each group has four prototypes namely the analog, the hybrid, the combinational and the sequential.
Antonio D. Reis +3 more
openaire +2 more sources
ICASSP '78. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005
This paper deals with the design, construction and evaluation of a Digital Phase-Locked Loop. An exclusive OR gate serves as a linear phase detector. The integrator consists of a cascade of up/down decade counters. The D.C. value of each cycle from the phase detector is measured and accumulated. The rate of integration is determined by the clock input.
C. P. Reddy, Erik Fountain
openaire +1 more source
This paper deals with the design, construction and evaluation of a Digital Phase-Locked Loop. An exclusive OR gate serves as a linear phase detector. The integrator consists of a cascade of up/down decade counters. The D.C. value of each cycle from the phase detector is measured and accumulated. The rate of integration is determined by the clock input.
C. P. Reddy, Erik Fountain
openaire +1 more source
Applied Optics, 1987
Phase locking of two CO/sub 2/ ring lasers is achieved by injecting the reverse mode output from each ring into the other through reverse mode clipper mirrors. (AIP)
S, Holswade +4 more
openaire +2 more sources
Phase locking of two CO/sub 2/ ring lasers is achieved by injecting the reverse mode output from each ring into the other through reverse mode clipper mirrors. (AIP)
S, Holswade +4 more
openaire +2 more sources
Concurrent separation of phase-locked and non-phase-locked activity
2022Abstract Brain dynamics recorded via electroencephalography (EEG) is conceptualized as a sum of two components, “phase-locked” and “non-phase-locked” to the stimulus. Both activities are understood to be stemming from different neuronal mechanisms and hence accurately characterizing them is of immense importance in neuroscientific ...
Shubham Singhal +3 more
openaire +1 more source
ACM Transactions on Database Systems, 1986
In a large integrated database, there often exists an “information hierarchy,” where both raw data and derived data are stored and used together. Therefore, among update transactions, there will often be some that perform only read accesses from a certain (i.e., the “raw” data) portion of the database and write into another (i.e., the “derived” data ...
Meichun Hsu, Arvola Chan
openaire +1 more source
In a large integrated database, there often exists an “information hierarchy,” where both raw data and derived data are stored and used together. Therefore, among update transactions, there will often be some that perform only read accesses from a certain (i.e., the “raw” data) portion of the database and write into another (i.e., the “derived” data ...
Meichun Hsu, Arvola Chan
openaire +1 more source
Phase locking of biological clocks
Journal of Mathematical Biology, 1982Radial isochron clocks (RICs) and their response to external signals and coupling with other RICs are studied. RICs are derived as phase approximations to self-sustained oscillators. Their response to single impulses (phase resetting) and to repetitive impulses is determined. This response may be harmonic or chaotic.
Hoppensteadt, F. C., Keener, J. P.
openaire +3 more sources
On phase locking of pulse encoders
Bulletin of Mathematical Biology, 1978Several models have been proposed to underststand the patterns of nerve impulses produced by periodic stimuli. This paper shows that for a very large class of such models there exists a pattern of phases that repeats periodically after a finite number of pulses; the actual pulses produced by the model depend on its initial condition, but in all cases ...
openaire +3 more sources
Phase locking an atom interferometer
2016 European Frequency and Time Forum (EFTF), 2016In atom interferometry the phase evolution of a quantum superposition state is measured with respect to a reference signal. The measurement has a limited unambiguous interval, since not the phase but its projection is measured as a population unbalance on two energetic levels. Resolving phase wrapping brings to a longer interrogation interval and hence
Bartoldi, Andrea +5 more
openaire +1 more source
Lunar and menstrual phase locking
American Journal of Obstetrics and Gynecology, 1980In a selected population of 312 women, prospective menses records were maintained during the autumn of 1977. Women whose menstrual cycle duration approaches the cycle duration of the earth's moon (29.5 days) tend to ovulate in the dark phase of the lunar period. The dark phase encompasses the half-cycle of the month from last quarter, through new moon,
openaire +2 more sources
Journal of the ACM, 1985
Many database systems maintain the consistency of the data by using a locking protocol to restrict access to data items. It has been previously shown that if no information is known about the method of accessing items in the database, then the two-phase protocol is optimal.
Gael N. Buckley, Abraham Silberschatz
openaire +2 more sources
Many database systems maintain the consistency of the data by using a locking protocol to restrict access to data items. It has been previously shown that if no information is known about the method of accessing items in the database, then the two-phase protocol is optimal.
Gael N. Buckley, Abraham Silberschatz
openaire +2 more sources