Method and apparatus for repeating the output of an optical scan

Details Method and apparatus for repeating the output of an optical scan Method and apparatus for repeating the output of an optical scan

1988-12-05

1992-08-11

Levy, Stuart S.

Registers

Coded record sensors

Particular sensor structure

250221, 25022722, G06K 710, G01V 904, G06M 700, H01J 4014

Patent

active

051381419

ABSTRACT:
There is disclosed a method and apparatus for enabling a checkout system to repeat the price of a previously processed purchased merchandise item which includes mounting a pair of photodetector members in a pair of apertures located in the checkout counter which is exposed to ambient light and enabling the photodetector members to generate a pair of control signals in response to positioning a finger of the checkout operator over one of the apertures and alternately covering and uncovering the second aperture with a second finger of the checkout operator.

REFERENCES:
patent: 2432527 (1947-12-01), Lang
patent: 2729288 (1956-01-01), Malott
patent: 3056030 (1962-09-01), Kelchner
patent: 3372789 (1968-03-01), Thiele et al.
patent: 3526775 (1970-09-01), Friedrich et al.
patent: 3621268 (1971-11-01), Friedrich et al.
patent: 3886544 (1975-05-01), Narodny
patent: 3937952 (1976-02-01), Ripley et al.
patent: 4006343 (1977-02-01), Izura et al.
patent: 4049964 (1977-09-01), Wuchinich et al.
patent: 4086476 (1978-04-01), King
patent: 4240064 (1980-12-01), DevChoudhury
patent: 4323888 (1982-04-01), Cole
patent: 4330702 (1982-05-01), Cheng
patent: 4431912 (1984-02-01), Dickson et al.
patent: 4525799 (1985-06-01), Okawa et al.
patent: 4534668 (1985-08-01), Hildel et al.
patent: 4575623 (1986-03-01), Cononi et al.
patent: 4639606 (1987-01-01), Boles et al.
patent: 4789775 (1988-12-01), McClain et al.
patent: 4814600 (1989-03-01), Bergstrom
IBM Technical Disclosure Bulletin, vol. 20, No. 4 (Sep. 1977).

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