Abstract: The identification of permissible variations in a CCD image perimeter as blemishes is avoided by sequentially considering the adjacent pixels of a selected plurality of pixels. Pixel motions are defined between adjacent pixels and can be either straight or diagonal. Diagonal pixel motions are recorded as straight when the first and last pixel motions are diagonal in opposite directions and the intervening pixel motions are straight.

Abstract: An apparatus for removing undesirable particles from a kinescope panel/mask frame assembly includes a plurality of thumper arms. The arms have a cam follower at one end and a thumper at the other end. Cams on a rotatable shaft engage the cam followers to raise the thumpers above the panel. The cams include inset portions to disengage the cams and cam followers. The cams and cam followers face in opposite directions so that the thumpers alternately impact the panel. During the thumping, charged air is passed across the panel/mask frame assembly to charge the assembly and any particles adhering to the assembly because of static charge. The like charges cause the particles to be repelled from the assembly. The combination of the charged airflushing and thumping disengages particles from the assembly which otherwise could cause blocked apertures or shorted electron guns.

Abstract: A system for uniformly dispensing a frit material onto the seal edge of a CRT funnel includes a motor for rotating the funnel. The motor also drives a pulse generator which provides a selected number of input pulses for each increment of rotation. The input pulses are provided to two programmable BCD counters. One counter controls the funnel motor and is programmed to change the motor speed around the funnel corners. The other counter controls the feed screw dispenser and is programmed to maintain the ratio of motor speeds within a selected range of values.

Abstract: A CRT has a spring for mounting the shadow mask assembly of the CRT onto a stud of the CRT panel. The spring has a circular flange contered on a stud receiving hole. Thus the stud hole is always straight up and at a fixed distance from a locator of an insertion machine regardless of any tilt of the spring, and therefore the shadow mask assembly is always correctly inserted into the panel.

Abstract: A system for measuring the intensity profiles of the electron beams of color kinescopes includes a camera having a CCD. A color field is placed on the kinescope screen and a pixel in the center of one of the colored stripes is selected. The color field is turned off and the beam is scanned in short lines in one direction and incrementally stepped across the selected pixel in the perpendicular direction. The charge level on the selected pixel is representative of the beam intensity and is recorded. The entire beam is stepped across the pixel to measure the intensity profile in one direction. The directions of scanning and stepping are then interchanged to measure the beam intensity profile in the normal direction. The process is then repeated for the other electron beams in the kinescope.

Abstract: A technique for interconnecting a plurality of stacked printed circuit boards, each board having a plurality of spaced contact areas at an edge thereof, utilizes a multiconductor cable having a plurality of insulation-stripped window regions therein at predetermined intervals. The cable is continuous through a plurality of the window regions which are positioned, respectively, adjacent the edges of the printed circuit boards so that, at each window region, each stripped wire is aligned with a different contact area. The stripped wires are soldered in bulk to their respective contact areas.

Abstract: A CRT has an Einzel lens focus mask with a high voltage between the shadow mask and the meshes to achieve a strong focusing action and therefore minimize beam current interception by the shadow mask. The mask is supported by an insulating block inside a tube. During gettering, the getter material does not deposit on the inside of the tube and therefore spurious conduction paths are avoided. Thus the support can withstand the high voltage. A lead-in wire for the mask has a tube surrounding it which is open near the mask. This also withstands the high voltage.

Abstract: A device for raising and lowering a heavy object between selected heights and positions includes two pairs of spaced, parallel lift arms which are pivotally coupled at one end. One end of one of the pairs of lift arms is pivotally coupled to a base member. A shaft extends between the lever arms and a handle is provided to rotate the shaft to simultaneously rotate the lift arms with respect to the base member. Linkages couple the other lift arms to the shaft at pivot points which are offset from the pivot points of the lift arms and from the shaft. Accordingly, the two pairs of lever arms simultaneously move with respect to one another upon the actuation of the connecting shaft.

Abstract: A system for inputting any one of a plurality of inputs to a computer includes a latch circuit which provides an input to the computer in response to the input. The latch circuit also provides a start signal to the computer when the parity is correct. The start signal is delayed so that the system is independent of the amount of time that a switch is held closed by the operator.

Abstract: A structure for converging electrons at the screen of a flat panel display and for transversely scanning electrons across the channels of the display includes a plurality of conductive strips arranged between the acceleration mesh and the phosphor screen. The strips extend longitudinally along and are substantially parallel to the acceleration mesh and are also substantially parallel to one another. A first portion of the strips is voltage biased to converge electrons in the proximity of the screen and scan said electrons transversely across the channels and the other portion is voltage biased to scan the electrons transversely across the channels.

Abstract: An interface circuit in a television receiver selects two pulses from a pulse train for transfer to a digital computer. The interface circuit includes first and second logic elements, a counter and a comparator for enabling a gating circuit to transfer the selected two pulses to the digital computer.

Abstract: A system for the automatic adjustment of the pressure pad holding force in accordance with the thickness of the workpiece and the forming tool stroke includes a force transducer and a displacement transducer. The force transducer is used to monitor the force between the pressure pad and the workpiece. The output of the displacement transducer is continually read as the part is being formed. The workpiece thickness and forming tool stroke are used to calculate the optimum holding force. The pressure of a fluid system is adjusted to change the holding force to the optimum value.

Abstract: An apparatus for verifying the acceptability of the curvature of kinescope shadow mask after such masks are welded to the support frame includes a fixed member having a surface curved to conform to the curvature of the shadow mask. Sensors are embedded in the curved surface and engage a shadow mask placed on the fixed member. A movable support frame includes support members which support the shadow mask frame above the fixed member while the mask is welded to the shadow mask frame. The sensors also are movable along with the movable support frame. After the welding is completed the support frame is raised to remove the mask from the surface of the fixed member. The sensors are biased and remain in engagement with the shadow mask whereby the sensor readings verify that objectionable deformation of the shadow mask did not occur during the welding operation.

Abstract: A frit dispensing device includes a hopper which dispenses the frit material to the seal edge of a CRT funnel. The device centers the funnel and raises the funnel to place the seal edge in a reference plane a desired distance from the hopper. Funnel orientation members engage the funnel to place the funnel in the desired orientation with respect to the hopper. The funnel is rotated beneath the hopper and frit material is uniformly dispensed to the entire seal edge.

Abstract: A seal arrangement for retaining liquid in a chamber at a level above some of the sides of the chamber includes two pairs of rollers. The rollers of each pair contact one another at a height above the low sides of the chamber. The rollers in each pair are arranged at different levels so that the rollers contact one another at a point higher than the height of the low sides of the chamber. Flexible seal members extend from the bottom of the chamber to a point above the center of each of the bottom rollers. Pressure of liquid in the chamber biases the flexible seal members against the rollers to prevent liquid from leaking along the bottom of the rollers. Restrictions in the outlets of the chamber establish the liquid level at a height which is above the contact point of the pairs of rollers so that both sides of a strip of material passing between the pairs of rollers are washed with the liquid.

Abstract: The present invention is an improvement in a method and apparatus for screening a line screen slit mask color picture tube. Such method includes coating a faceplate panel of the tube with a photosensitive material, inserting a slit shadow mask into the panel, and exposing the photosensitive material by passing light from a line light source through the slits of the mask. The improvement comprises positioning, between the light source and the shadow mask, means for varying the effective length of the line light source when viewed from different locations on the faceplate panel.In a preferred embodiment, the means for varying the effective length of the line light source are curved louvers placed adjacent the light source which, when viewed from the center of the panel, shadow the ends of the light source, but which, when viewed from the ends of the minor axis of the panel, expose an effectively longer light source.

Abstract: Apparatus for sealing a mount including a wafer into a neck of a cathode-ray tube oriented along an axis comprises two tiers of burner tips. The first tier is disposed completely around the axis at a first distance therefrom and similarly aimed nonradially along directions tangent to a first circle. The second tier of burner tips is disposed completely around the axis below the first tier at a second distance from the axis and similarly aimed nonradially along directions tangent to a second circle. The first distance and the diameter of the first circle are greater, respectively, than the second distance and the diameter of the second circle.

Abstract: A device for shearing, welding and aligning two sheets of thin material includes two segmented tables arranged on opposite sides of a vertically moveably welding head. Substantially parallel shears are equally spaced on opposite sides of the welding head. The sheets of material are arranged so that their uneven ends lie between the welding head and the respective shears. Clamping bars are arranged to clamp the sheets of material snugly against moveable segments within each of the segmented tables. The uneven ends are clamped in position and then sheared off. The moveable segments and the clamping bars move the two sheets of material inwardly toward the welding head. The distance that the moveable segments move slightly exceeds the distance between the welding head and respective shears so that the sheared ends overlap a preselected distance. A deflector arranged in the proximity of one of the shears assures that one of the sheets overlaps the other sheet.

Abstract: An apparatus for sealing a wafer in the neck of a CRT has two groups of burners, one group provides the optimum temperature for sealing, the other group provides the optimum temperature for cutting off the cullet. The burners are arranged in an arc with the outer burners performing the cutting off operation and the inner burners performing the sealing operation.

Abstract: A system for orienting a rotating member includes a slow down and a stop sensor. A logic circuit receives inputs from the sensors to slow and stop the rotating member. A slow down signal must be received before a stop signal can effect the rotations. Starting is delayed to enable the motor starting circuit to go through the necessary start up sequences.