Bar code reader using scanned memory array

Details Bar code reader using scanned memory array Bar code reader using scanned memory array

1994-05-09

1995-03-07

Weinhardt, Robert A.

Registers

Coded record sensors

Particular sensor structure

235470, 235472, G06K 710

Patent

active

053960548

ABSTRACT:
In a bar code reader, a field of view which includes a symbol to be read is imaged upon a light-responsive array such as a CCD imager device. The output of this array is transferred to a memory array to provide a bit-mapped type of binary representation of the image including the symbol. The memory is scanned (instead of the field of view itself being mechanically scanned) to recognize and decode the symbol. Because the angular orientation of the symbol is variable, this binary representation may be interpreted to determine how the memory array is to be scanned to recognize the bar code symbol. For example, the distinctive patterns of characters used in bar codes may be found by scanning the memory and the relative positions of these patterns interpreted to determine the position, size and shape of the symbol in the memory, thereby defining at what angular displacement the memory array need be addressed to traverse the rows of the bar code symbol. Or, the memory array may be simply scanned using preselected scan lines (beginning with a raster-type scan) until code recognition is obtained.

REFERENCES:
patent: 3978317 (1976-09-01), Yamaguchi et al.
patent: 3978318 (1976-08-01), Romeo et al.
patent: 4251798 (1981-02-01), Swartz et al.
patent: 4355301 (1982-10-01), Isshiki et al.
patent: 4387297 (1983-06-01), Swartz et al.
patent: 4409470 (1983-10-01), Shepard et al.
patent: 4418276 (1983-11-01), Yatsunami
patent: 4418277 (1983-11-01), Tremmel et al.
patent: 4500776 (1985-02-01), Laser
patent: 4570057 (1986-02-01), Chadima, Jr. et al.
patent: 4652730 (1987-11-01), Marshall
patent: 4727245 (1988-02-01), Dobbins et al.
patent: 4728784 (1988-03-01), Stewart
patent: 4746789 (1988-05-01), Gieles et al.
patent: 4748318 (1988-05-01), Bearden et al.
patent: 4748319 (1988-05-01), Sasaki et al.
patent: 4753498 (1988-06-01), Saitoh et al.
patent: 4760248 (1988-07-01), Swartz et al.
patent: 4761544 (1988-08-01), Poland
patent: 4794239 (1988-12-01), Allais
patent: 4822986 (1989-04-01), Guthmueller et al.
patent: 4850009 (1989-07-01), Zook et al.
patent: 4873426 (1989-10-01), Sarva et al.
patent: 4879456 (1989-11-01), Cherry et al.
patent: 4902883 (1990-02-01), Poland
patent: 4948955 (1990-08-01), Lee et al.
patent: 4967074 (1990-10-01), von Stein
patent: 4988852 (1991-01-01), Krishnan
Longacre, Jr., Stacked Bar Code Symbologies, Identification Journal, Jan./Feb. 1989.

Affiliated with

Also associated with

Rating

Bar code reader using scanned memory array does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bar code reader using scanned memory array, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bar code reader using scanned memory array will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1407699