Data reading and/or writing apparatus of type using optical card

Details Data reading and/or writing apparatus of type using optical card Data reading and/or writing apparatus of type using optical card

1990-11-16

1993-01-12

Wysocki, A. Jonathan

Registers

Coded record sensors

Particular sensor structure

235440, G06K 700

Patent

active

051792672

ABSTRACT:
An apparatus for reading and writing a data signal from and on an optical card including an optical head having a semiconductor laser for emitting a writing light beam, a light emitting diode for emitting a reading light beam, a first object lens for projecting the reading light spots onto the optical card, a second objective lens for projecting the reading light beam reflected by the optical beam onto a photodetector and a half mirror arranged in an optical axis of the second objective lens, a driving mechanism for moving the optical card in it lengthwise direction, and a focusing control mechanism for moving the optical head in a direction normal to the surface of the optical card.

REFERENCES:
patent: 4023010 (1977-03-01), Horst et al.
patent: 4122998 (1978-10-01), Eitzer et al.
patent: 4254329 (1981-03-01), Gokey et al.
patent: 4290122 (1981-09-01), Bates et al.
patent: 4528445 (1985-07-01), Willmore et al.
patent: 4562577 (1985-12-01), Glover et al.
patent: 4598196 (1986-07-01), Pierce et al.
patent: 4598393 (1986-07-01), Pierce et al.
patent: 4634850 (1987-01-01), Pierce et al.
patent: 4652730 (1987-03-01), Marshall
patent: 4677604 (1987-06-01), Jelby, III et al.
patent: 4680460 (1987-07-01), Drexler
patent: 4695991 (1991-09-01), Hudson
patent: 4730293 (1988-03-01), Pierce et al.
patent: 4754127 (1988-06-01), Brass et al.

Affiliated with

Also associated with

Rating

Data reading and/or writing apparatus of type using optical card does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data reading and/or writing apparatus of type using optical card, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data reading and/or writing apparatus of type using optical card will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1221742