Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1976-02-02
1977-05-24
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
235 6111E, G06K 710
Patent
active
040254429
ABSTRACT:
Clocking pulses are provided by providing a number of equally spaced potential mark locations serially disposed in the intended direction of relative movement of the marks past a detection location wherein there are provided marks contrasting with the background at every nth one of the potential mark locations and where marks are selectively provided or not at the other potential mark locations to provide information. Means are provided for detecting such marks or the absence thereof when the locations are moved relatively to said detecting means, in a relative direction to move serially therepast. At least n detectors are provided to disposed in said relative movement disposed so that all sense the status of a location simultaneously and at least one is sensing a mark at one of the `nth` locations. By combining the outputs of the detectors at an `OR` gate a clock signal is produced every time a location passes a detector which clock signal may be used to synchronize the detection of information at the "other" locations.
REFERENCES:
patent: 3467819 (1969-09-01), Jorgensen
patent: 3502851 (1970-03-01), Kakimoto et al.
patent: 3562494 (1971-02-01), Schmidt
patent: 3586833 (1971-06-01), Schafer
patent: 3609306 (1971-09-01), Langley
patent: 3663803 (1972-05-01), Mohan et al.
Ferranti-Packard Limited
Nelms David C.
LandOfFree
Coded label and decoding means and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coded label and decoding means and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coded label and decoding means and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-535609