Rca Inc.

Loren B Johnston

David Isaac Harris

A system for sequentially refreshing segments of the stored voltage characteristics of electron guns includes a clock gate. The clock gate passes clock pulses to a counter which refreshes the stored voltage signals. After a predetermined number of counts, the counter inhibits the clock gate until a vertical blank pulse enables the clock gate and the counter resumes counting.

System for segmentally refreshing the stored electron gun drive voltages

The minimum output level of an electron gun driven at discrete voltage levels is precisely established. A target value slightly above the minimum voltage level is compared with the actual value. The result of the comparison is used to uniformily establish the minimum electron gun drive voltage and thus compensates for electron gun transfer characteristic differences and variations within the gun drive circuitry. An additional circuit utilizing a target value slightly below the maximum voltage can be used to establish the maximum output level of the electron gun.

System for compensating for transfer characteristic variations of

The analog video signal for a modular flat panel display device is digitized in an analog to digital converter. The digitized data are supplied to a left/right serial shift register. A left/right control signal causes the left/right shift register to periodically receive data on either a left input terminal during a left loading mode or a right input terminal during a right loading mode. In each loading mode a portion of the data are output from the serial register over a right output terminal and the other portion over a left output terminal. Accordingly, during each loading mode one portion of the data is output in the same order as received and the other portion in an order reversed from the received order. The data from the left/right register are supplied to primary registers and because of the operation of the left/right register data for adjacent primary registers are in opposite order.

System for periodically reversing the order of video data in a flat

The effective sensitivity of a photo- or electron beam resist is improved by contacting the resist film with developer solution and water prior to exposure.

Method for developing electron beam sensitive resist films

A method of producing a high resolution information storage disc includes the steps of forming a grooved disc coated with an electron beam sensitive material, exposing the coated disc to a signal modulated electron beam, replicating the exposed disc to form a second disc of opposite contour, and utilizing the second disc to produce discs having positive-shaped groove and signal information.

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Princeton, NJ, United States of America

Loren B Johnston