Light sensor and thresholding method for minimizing transmission

Details Light sensor and thresholding method for minimizing transmission Light sensor and thresholding method for minimizing transmission

1997-01-17

1999-10-05

Garber, Wendy

Television

Camera, system and detail

Optics

348149, H04N 5225

Patent

active

059632534

ABSTRACT:
A thresholding method and improved light sensor that reduce the processing requirements of processors used to control the shutter, gain, and pedestal settings of license plate cameras employed in a toll road revenue collection system. The thresholding method and light sensor reduce the amount of data transmitted from the light sensor to the processor which controls the shutter, gain, and pedestal settings of license plate cameras of the toll road collection system. To minimize the redundant transmission and processing of data by the processor, a threshold comparator is used in the light sensor that only transmits data when the light level changes enough to exceed or fall below a programmable threshold. The threshold is programmed by the processor using a microprocessor. Thus, data is only transmitted when lighting conditions change, and transmission of redundant data is therefore eliminated.

REFERENCES:
patent: 5086314 (1992-02-01), Aoki et al.
patent: 5742340 (1998-04-01), Alves
patent: 5809161 (1998-09-01), Auty et al.

Affiliated with

Also associated with

Rating

Light sensor and thresholding method for minimizing transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light sensor and thresholding method for minimizing transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light sensor and thresholding method for minimizing transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1177441