Multiplexing of transient image bar

Details Multiplexing of transient image bar Multiplexing of transient image bar

1987-06-15

1988-03-01

Evans, Arthur G.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346154, G01D 1514

Patent

active

047289724

ABSTRACT:
The invention is a liquid crystal material between horizontal and vertical electrodes. A xerographic drum is placed underneath the electrodes/liquid crystal configuration and an optical system provides light or no light at the intersection of the electrodes to be focused on the xerographic drum. A single line of data is created by printing first the odd elements of the data and then the even elements. First, data is clocked into a shift register coincident with clock pulses. This is the data for the next line to be printed or displayed and not the presently printed or displayed line of odd bits. When the new line has been completely shifted in, a latch pulse transfers the data to latches, a one line parallel in parallel out buffer. Then, on the even half of the cycle, the even bits of data which have been shifted in while the odd dots are being printed, are latched to the drivers.

REFERENCES:
patent: 3786486 (1974-01-01), Torresi
patent: 3878537 (1975-04-01), Roncillat et al.
patent: 4308534 (1981-12-01), Yamamoto
patent: 4427978 (1984-01-01), Williams
patent: 4595259 (1986-06-01), Perregaux
patent: 4633242 (1986-12-01), Sekiya
patent: 4649404 (1987-03-01), Ohta et al.

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