Laser diode operated in amplitude modulation and pulse amplitude

Details Laser diode operated in amplitude modulation and pulse amplitude Laser diode operated in amplitude modulation and pulse amplitude

1993-05-17

1995-06-20

Reinhart, Mark J.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

H04N 121

Patent

active

054264529

ABSTRACT:
A laser imaging apparatus includes a laser diode which is controlled to produce a laser beam the power of which varies linearly as a function of a digital image input signal. The laser beam is deflected by scanning optics to expose photosensitive media such as film. When the digital image input signal is in a first range of values to operate the laser diode in its linear region, the laser diode is controlled to operate in an amplitude modulation mode. When the digital image input signal is in a second, lower, range of values which would operate the laser diode in its non-linear operating region, the laser diode is controlled to operate in the linear region but in a pulse amplitude modulation mode.

REFERENCES:
patent: 4375065 (1983-02-01), Ohara
patent: 4679057 (1987-07-01), Hamada
patent: 4754291 (1988-06-01), Horikawa
patent: 4774710 (1988-09-01), Davis et al.
patent: 4799069 (1992-01-01), Sasaki et al.
patent: 4806946 (1989-02-01), Ohnishi
patent: 4905022 (1990-02-01), Nagasawa
patent: 4987426 (1991-01-01), Ota et al.
patent: 5081631 (1992-01-01), Dhurjaty
patent: 5371524 (1994-12-01), Herczeg et al.
"Uniform Perceptual Quantization: Applications to Digital Radiography," M. I. Sezan, K. Yip, S. J. Daly, IEEE Transactions on Systems, Man, and Cybernetics, vol. SMC-17, No. 4, Jul./Aug. 1987, pp. 622-634.

Affiliated with

Also associated with

Rating

Laser diode operated in amplitude modulation and pulse amplitude does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser diode operated in amplitude modulation and pulse amplitude, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser diode operated in amplitude modulation and pulse amplitude will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1847486