DocumentCode
890578
Title
Automatic curve reading by phase-modulated analog sampling
Author
Barlow, J.S.
Volume
55
Issue
6
fYear
1967
fDate
6/1/1967 12:00:00 AM
Firstpage
1079
Lastpage
1080
Abstract
Coincidence pulses generated upon sinusoidal scanning of a curve originally recorded optically (e.g., ink-on-paper, photographically) trigger a sample-and-hold circuit having the scanning waveform as an input; a sampled electrical version of the original curve thus results. This principle is readily adaptable to simultaneous multichannel operation for continuous automatic reading of electroencephalograms, seismograms, etc.
Keywords
Circuits; Electroencephalography; Frequency; Information retrieval; Magnetic recording; Optical pulse generation; Optical recording; Phase modulation; Pulse modulation; Sampling methods;
fLanguage
English
Journal_Title
Proceedings of the IEEE
Publisher
ieee
ISSN
0018-9219
Type
jour
DOI
10.1109/PROC.1967.5728
Filename
1447658
Link To Document