Results 221 to 230 of about 255,822 (257)

Effects of noise type, noise intensity, and illumination intensity on reading performance

Applied Acoustics, 2017
Abstract This study empirically investigated the effects of noise type, noise intensity, and illumination intensity on reading performance. Three levels of noise types: factory noise, classical music, and pop with lyrics; three levels of noise intensity: 45 dBA, 65 dBA, and 85 dBA; and three levels of illumination intensity: 200 lx, 600 lx, and 1000 ...
Tao Liu, Chin-Chiuan Lin, Kuo-Chen Huang, Yi-Chang Chen   +3 more
openaire   +1 more source

Effect of transition noise on the signal-to-noise ratio of magnetooptic read channels

IEEE Transactions on Magnetics, 1996
The effect of transition noise on the soft bit error rate (BER) and the signal-to-noise ratio (SNR) in magnetooptic (MO) recording systems is studied. With high-density MO recording, transition noise and intersymbol interference (ISI) become problems.
Ozgunes, Inci, Vijaya Kumar, Bhagavatula V.K., Kryder, Mark H.   +2 more
openaire   +2 more sources

On the linear theory of noise in read diodes

Proceedings of the IEEE, 1971
The linear theory of the noise of Read diodes is extended to the case of different ionizing coefficients for electrons and holes and a finite multiplication factor. It is shown that the noise is smallest when the carriers injected in the avalanche region are of the less strongly ionizing type.
openaire   +1 more source

Noise spectra of read diode and Gunn oscillators

Proceedings of the IEEE, 1966
exaly   +2 more sources

Temporal uncertainty in reading the neural code (proportional noise)

Biosystems, 2002
It is widely accepted that neural information is encoded in the timing of action potentials. However, such information can only be transmitted if the receiver (soma, muscle fibre) can measure time precisely. We argue that such timing is inevitably imprecise due to biological fluctuations in receiver function.
openaire   +2 more sources

Optimizing the Noise Performance of a Magneto-Optic Read Channel

Optical Data Storage, 1989
One of the problems in the design a magneto-optic read-write head is determining the light level needed at the data detectors. Figure 1 is a schematic of a typical M-O head in which PBS1 and PBS2 are actually leaky beam-splitters that divert from the main optical path (laser to disk and back) some fraction of the p-polarized (unrotated) light.
openaire   +1 more source

The Effect of Elevated Train Noise On Reading Ability

Environment and Behavior, 1975
Program at the Graduate Center of the City University of New York. His particular interests are environmental stressors in urban living, and he is presently investigating the effects of high-rise dwelling on low-income families.
Arline L. Bronzaft, Dennis P. McCarthy
openaire   +1 more source

Noise of optical character reading machines

The Journal of the Acoustical Society of America, 1977
The manufacturer of a machine for optical character reading requested assistance in solving the noise problems resulting from a new design. The noise of the new machine was at such a level as to bar its acceptance by potential clients. Initial sound level readings, tape recordings and real time analysis resulted in identifying problems with noisy gears,
openaire   +1 more source

Noise in gallium arsenide avalanche Read diodes

IEEE Transactions on Electron Devices, 1976
The noise and signal properties of Read-type avalanche diodes under large-signal levels are examined. In contrast to most other previous theories, we include the saturation current in the equations rigorously from the beginning. We find that the noise performance is a strong function of the saturation current such that high saturation currents lead to ...
H. Statz, R.A. Pucel, J.E. Simpson, H.A. Haus   +3 more
openaire   +1 more source

Read-noise considerations in cryoelectric memory systems

IEEE Transactions on Magnetics, 1969
Several sources of deterministic read noise in cryo-electric memories are discussed. Write noise and random thermal noise are not included. Noise on a single plane is first considered. Inductively coupled in-mode noise can be minimized by crossing lines at right angles and maintaining maximum distance between parallel segments of drive and sense lines.
S. Keneman, L. Cosentino
openaire   +1 more source