Abstract: An optical-electronic measurement system wherein only the images of workpiece edges from which measurements are to be taken are coupled to identifiable locations on the photocathode of a processor-controlled scanner by a plurality of flexible fiber optic bundles whose object ends are placed about an inspection field so that each such edge is within the field of view of a respective bundle. Pairs of such identifiable locations are correlated to the measurements to be taken. A workpiece of known size is placed in the inspection field and the scanner photocathode is electronically scanned to determine the positions of the edge images relative to scan origins. The processor adjusts functions to relate the edge positions correctly to the known dimensions. The same measurements of workpieces of unknown dimensions are then taken by the calibrated system using the adjusted functions.
Abstract: A programmable electronic door chime is disclosed. The door chime includes programming means to select any desired sequence of notes up to a given maximum which are sounded after momentarily closing a normally open push-button switch. The note sequence is truncated when a different normally open push-button switch is momentarily closed so that the particular switch actuating the chimes may be identified by the length of the note sequence. Tone adjustments are provided to vary the frequency, duration and beat of each note to produce a pleasing sound.
Abstract: An on-screen television display including means internally of the receiver for generating characters to indicate the channel number, time of day or other data. The system includes circuit means responsive to the horizontal and vertical sync signals of a television receiver for positioning and timing of the display. BCD data is coupled to a character generator, and the output of the character generator is then multiplexed with positioning and timing signals. The multiplexed output is coupled to a video interface which supplies the video signal to the cathode ray tube.
Abstract: Apparatus for testing, cleaning, and rejuvenating three gun, color television, cathode ray picture tubes is disclosed. The apparatus shown permits the cleaning and rejuvenating procedures to be performed separately and on selected, individual ones of the cathode ray tube guns so that these procedures need be carried out only on those guns actually requiring them. The apparatus includes a great deal of flexibility and, in particular, its full capabilities may be used even with cathode ray tubes having the control grids of the separate guns connected together in parallel.
Abstract: The disclosed linearization system and process converts a high resolution non-linear analog input signal, representative of the thickness of an object, into a high resolution linear analog output signal suitable for use in driving a variety of output devices. The system requires only a small amount of memory for storing pre-calculated non-linear correction coefficients. Prior art linearization systems typically require large memory configurations and/or powerful computers to develop the output signal from the non-linear input. The known systems do not take advantage of the high resolution inherent in the input signal. The disclosed system "channels" the input signal to separate circuit paths so that it may be used directly to; (1) locate an appropriate correction coefficient; (2) develop a correction term after an appropriate correction coefficient is located; and (3) develop a linearized signal having the same high resolution inherent in the input signal.
Abstract: A time delay switch is disclosed for permitting a load to be powered over a preselected period of time. The switch automatically cuts off power to the load when the period expires. The disclosed switch draws no power in its "Power Cut-Off" state thereby conserving the life of the power source. In addition to being power conservative the disclosed switch features rapid power turn on, emergency power cut off and is capable of being operative in its "Power On" state over relatively long periods of time.