Abstract: A data display video monitor includes an automatic kinescope bias (AKB) control system for the type wherein kinescope cathode output pulses representative of the black current level conducted by the kinescope are produced in response to energizing the kinescope grid during sensing intervals. As a result of this operation, plural horizontal lines along the top edge of the visible display screen area are illuminated. To reduce the visible effect of the illuminated lines, the AKB system is activated for short sensing intervals (e.g., two seconds or less) between considerably longer holding intervals (e.g., five minutes).

Abstract: A vertical transition processor for a comb filter detects the presence of a complementary-color vertical transition. A detector is provided for detecting if the color subcarrier on adjacent lines has the same phase angle and amplitude. This indicates the presence of a complementary-color vertical transition. If a complementary-color vertical transition is detected, then the comb filtered luminance and chrominance signals are selectively coupled to the luminance and chrominance processing channels so that the chrominance processing channel receives primarily color information and the color information is excluded from the luminance processing channel. This counteracts the adverse effects of the complementary-color vertical transition.

Abstract: A cathode-ray tube has a faceplate panel joined to a funnel thereof along a sidewall of the panel, and has an internal magnetic shield disposed therein proximate an inner surface of the funnel and connected along one end thereof to a back portion of a shadow-mask frame oriented orthogonally to a central axis of the tube and supported adjacent the sidewall. An apertured shadow mask is connected along an edge thereof to a front portion of the shadow-mask frame opposite the back portion. Along the direction of the central axis, the one end of the magnetic shield overlaps the corresponding edge of the shadow mask around substantially all of the shadow-mask frame.

Abstract: The number of bits per digital sample that is required to be stored in each of one or more delay means of an input-weighted multitap digital filter is reduced with respect to that required by the prior art. The savings in storage hardware becomes more and more significant as the number of samples stored in each delay means becomes larger and larger. A plurality of filter delay means, each storing as many as 800 samples, are used in vertical filters of image processors operating in real time on horizontally scanned two-dimensional images, such as television images.

Abstract: A piston is forced in a direction to disengage from a cylinder containing a fluid such as an adhesive. The piston while in engagement with the cylinder abuts a stop in response to the disengagement force. While the disengagement force is kept on the piston, the chamber between the fluid and piston in the cylinder is evacuated. After evacuation, the disengagement force on the piston is gradually released and the piston is forced against the fluid to squeeze the fluid through fluid couplings into an array of corresponding containers releasably secured to the piston, simultaneously filling the containers without exposing the fluid to air.

Abstract: A method of forming a semiconductor device is disclosed wherein the doping concentration of the side wall of a trench isolation region is increased. An opening is formed in a first masking layer so as to expose a portion of the semiconductor substrate. Then, dopants are introduced through the opening in the masking layer so as to form a heavily doped region within the semiconductor substrate. An isolation trench is then formed in the exposed portion of the semiconductor substrate. At least a portion of the side wall of the trench is located in the heavily doped region. The heavily doped region increases the threshold voltage of the side wall transistor and thereby reduces the leakage current along the side wall of the trench isolation region.

Abstract: A method for forming a dielectric film over a semiconductor device is disclosed. The body of semiconductor material is formed and a hydrogen-containing silicon nitride material substantially free of silicon-hydrogen bonds is formed thereover.Also disclosed is a semiconductor device, including a body of semiconductor material and a dielectric film thereover. The dielectric film is a hydrogen-containing silicon nitride material substantially free of silicon-to-hydrogen bonds.

Abstract: The present imaging system, like prior imaging systems, includes an electron tube and an external solenoid which is disposed around a portion of the tube. An electron gun within the tube has a plurality of support beads located substantially symmetrically around the gun. Each of the beads comprises a body of insulating material having a first major surface and an oppositely disposed second major surface. A recess is formed in the first major surface and extends into the body of the material. A plurality of connectors corresponding to the number of supports beads are also provided. Each of the connectors comprises a single piece of metal having a proximal end, a distal end and a central body interconnecting both ends. The proximal end of each connector includes an embossment which conforms to the curvature of the leads which extend through a stem assembly of the tube.

Abstract: A foveated electronic camera employing a spatial-frequency spectrum analyzer and data-reduction means utilizing movable spatial windows for converting a high-resolution, wide field-of-view image into a group of subspectrum band images ranging in resolution and field of view from a lowest-resolution image of the entire field of view to a highest-resolution image of a selectably positionable smallest spatial subregion of the entire field of view. Such a camera is useful in a surveillance camera system and in a robotic system, by way of examples.

Abstract: A system for fine focusing a camera on one surface of a moving curved transparent object includes a digital storage device. The focusing range of the camera is stored in the storage device. A thickness transducer provides a signal representative of the thickness of the object and a displacement transducer provides a signal representative of the distance between the object and the camera. The thickness and the displacement signals are added and provided to the storage device. When the added value is outside the stored range the camera is focused to cause the added value to fall at the middle of the range.

Abstract: A turret is rotatably secured to a housing adapted to be secured to a robot wrist having a reference orientation and axis. The turret has a plurality of interchangeable lead processing devices which are selectively aligned to the reference orientation and axis. When so aligned a lead processing device is engaged with a selected component and operated to cut and bend the lead of that component. A second component's lead may be processed by the same or a different lead processing device secured to the turret. The latter device is aligned to the reference orientation and axis prior to processing the second component's lead. The robot is programmed to align the reference axis and the corresponding processing device to the selected component whose lead is to be processed.

Abstract: In a switching power supply for a video display apparatus, the primary winding of an isolation power transformer is coupled to a chopper switch and to an AC mains rectified output voltage source. A control circuit regulates the conduction of the chopper switch. A B+ voltage for a horizontal deflection circuit is generated from a first secondary winding electrically isolated from the primary winding. An audio supply voltage for a power audio circuit is generated from a second secondary winding also electrically isolated from the primary winding. A first feedback winding, more tightly coupled magnetically to the first secondary winding, and a second feedback winding, more tightly coupled to the second secondary winding, develop respective feedback voltages. The feedback voltages are proportionally summed and applied to the control circuit to vary the conduction of the chopper switch in a manner that regulates the secondary winding voltages and stabilizes raster width with audio loading changes.

Abstract: An arrangement is provided for computing the magnitude value of the vector sum of two quadrature-related component signals I and Q with a minimal of hardware. To this end, the magnitude values of the orthogonal I and Q signals are applied to a ROM as address codes to produce the Log.sub.B .vertline.I.vertline. and Log.sub.B .vertline.Q.vertline. values to the logarithmic base B. The smaller of the Log.sub.B .vertline.I.vertline. and Log.sub.B .vertline.Q.vertline. logarithmic values is subtracted from the larger of the logarithmic values to produce the absolute value .vertline.D.vertline. of the difference between the respective logarithmic values. The difference value D is applied to a ROM as an address code which is programmed to generate a correction value F=0.5 Log.sub.B (1+B.sup.-2.vertline.D.vertline.).

Abstract: A phase-locked laser array comprises a body of semiconductor material having means for defining a plurality of substantially parallel lasing zones which are spaced an effective distance apart so that the modes of the adjacent lasing zones are phase-locked to one another. One of the array electrodes comprises a plurality of electrical contacts to the body between the lasing zones. These contacts provide an enhanced current density profile and thus an increase in the gain in the regions between the lasing zones so that zero degree phase-shift operation between adjacent lasing zones is achievable.

Abstract: In a data processor system, a method for transferring data to and from a random access memory (RAM) with a serial data interface and having accessible word location includes the steps of generating a timing pulse consisting of contiguous time slots each defined by the Nth count of a counter, generating an initial address signal in the first occurring contiguous time slot of the timing pulse with the initial address signal including a read/write command signal, incrementing the initial address signal at each Nth count of the counter to form data address signal, accessing memory locations in the RAM with the initial address signal followed by said data address signals, supplying data words to or reading data words from the RAM at the word locations accessed by the data address signals in response to each Nth count of the counter and when the data address signal contains a write command or a read command signal, respectively.

Abstract: A digital filter system in which the frequency spectrum of an input signal is divided into M consecutive subbands. Each subband is generated by multiplying the impulse reponse of a low pass filter by a sinusoid (sine or cosine) whose frequency is equal to the center frequency of its respective subband. The sinusoids of adjacent bands are phase shifted by 90.degree. relative to each other to establish a condition enabling aliasing components to be cancelled when the subbands are recombined.

Abstract: An imaging device such as a silicon vidicon has a wafer of single crystal semiconductor material having an input sensing region and a charge storage region. A potential barrier is included within the input sensing region for controlling blooming. A passivation region is also included within the input sensing region to stabilize the atomic energy level along a first surface of the wafer. An anti-reflection layer of zinc sulfide and an anti-reflection layer of magnesium fluoride or Cryolite are sequentially deposited on the first surface of the wafer. The two anti-reflection layers form an anti-reflection region which enhances the quantum efficiency of the device in the wavelength range of 400 to 500 nanometers. Each of the layers has an optical thickness substantially equal to a quarter of the wavelength of light incident on the device. A method of forming the anti-reflection region is also disclosed.

Abstract: In a comparator circuit, first and second latchable circuits are connected in cascade between the output of an amplifying stage and the input of a decoder to enable the comparator to operate at significantly higher frequencies with lower error levels. An input signal, to be sampled, and a reference signal are applied to the input of the amplifying stage and a "sampled" signal indicative of the difference between the input and the reference is produced at the output of the amplifying stage. The "sampled" signal produced at the output of the amplifying stage is first processed, via the first latchable circuit operated in a regenerative mode to enhance the signal, during one time interval. The enhanced signal is then processed via the second latchable circuit operated in a regenerative mode tending to further enhance the signal, during a second, succeeding, time interval, for application to the decoder.

Abstract: An improvement is made in a color picture tube having a substantially rectangular slit-aperture type shadow mask mounted therein in spaced relation to a substantially rectangular cathodoluminescent line screen. In the specific improvement, the spacing between adjacent aperture columns near the minor axis of the mask is less at the long sides of the mask than near the major axis of the mask.

Abstract: Semiconductor devices such as lasers which include a substrate with a channel therein with a clad layer overlying the substrate and filling the channel exhibit irregularities such as terraces in the surface of the clad layer which are detrimental to device performance. These irregularities are substantially eliminated by forming the channel in a surface of a buffer layer greater than about 4 micrometers thick on the substrate and forming the clad layer over the buffer layer and the channel. CW lasers incorporating the principles of the invention exhibit the highest output power in a single spatial mode and maximum output power which have been observed to date.