Laser type recording device

Details Laser type recording device Laser type recording device

1980-12-09

1983-07-26

Konick, Bernard

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

358298, 358302, 369122, H04N 122

Patent

active

043957668

ABSTRACT:
A laser recording device adapted for use in a facsimile system in which a semiconductor laser is activated by a series of pulses the number of which is produced in accordance with an input signal. The input signal is sampled with a sampling pulse signal whereas the pulses applied to the semiconductor laser are produced at a frequency which is at least two orders of magnitude greater than the frequency of the pulses used to sample the input signal. The input signal is digitized and used to address a read-only memory which outputs a number of pulses in dependence upon the amplitude of the input signal. The output number of pulses may be logarithmically related to the magnitude of the input signal.

REFERENCES:
patent: 3374311 (1968-03-01), Hell
patent: 3656175 (1972-04-01), Carlson et al.
patent: 3920951 (1975-11-01), Chovan et al.
patent: 3988742 (1976-10-01), Meier et al.
patent: 4001492 (1977-01-01), Suzuki et al.
patent: 4106061 (1978-08-01), Burnett

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