Process and apparatus for treatment of an analog electric signal

Details Process and apparatus for treatment of an analog electric signal Process and apparatus for treatment of an analog electric signal

1989-08-03

1992-03-17

Shoop, Jr., William

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

36471506, H03M 730

Patent

active

050972634

ABSTRACT:
A process and an apparatus for treatment of an analog electric signal, in particular the image signal of bar codes, for obtaining a parametrable binary signal, the process comprising storing certain non-linear filtering parameters (MP) and, after having converted the analog signal into a digital signal (CAN), detecting sequentially the successive extremums of said digital signal (PIC) by an iterative treatment while considering said parameters, and then carrying out in each sequence a sigmentation treatment (BIN) by the detection of each extremum, for extracting and storing (RAM) the length of the representative segments of the succession of extremums.

REFERENCES:
patent: 4329574 (1982-05-01), Jordan, Jr.
patent: 4560977 (1985-12-01), Murakami et al.
patent: 4757464 (1988-07-01), Zimmermann et al.
patent: 4819197 (1989-04-01), Blais

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