Analog-digital optical conversion process and apparatus

Details Analog-digital optical conversion process and apparatus Analog-digital optical conversion process and apparatus

1982-06-25

1985-02-26

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

350 9614, H03K 1302

Patent

active

045020370

ABSTRACT:
The invention relates to an analog-digital coder incorporating n channels corresponding to the bits of the output word. Each channel comprises at least one light intensity modulator. As a function of the positive or negative half-cycles of the output signal of channel i+1, a supplementary phase shift of +.DELTA..PHI. or -.DELTA..PHI. is introduced onto the output signal of channel i, with /.DELTA..PHI./<.pi./2.

REFERENCES:
patent: 4058722 (1977-11-01), Taylor
patent: 4325603 (1982-04-01), Marom
Taylor, "IEEE Journal of Quantum Electronics", vol. QE-15, No. 4, Apr. 1979, pp. 210-216.
Leonberger, "IEEE Trans. on Circuits and Systems", vol. CAS-26, No. 12, Dec. 1979, pp. 1125-1131.
Ahmed, "Applied Optics", vol. 19, No. 18, Sep. 1980, pp. 3050-3051.
Takizawa, "Applied Optics", vol. 18, No. 18, Sep. 1980, pp. 3148-3151._

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