Abstract: A method and system for providing selective advertising on a television channel is accomplished by downloading appropriate advertisements from an advertising server to a subscriber's set top box over an out-of-band channel. The set top box monitors for events. When an event occurs, the set top box signals the head-end to download ads to the set top box. The ads may be selected using demographic or common channel preference pattern information associated with the set top box.

Abstract: A method and system for providing selective advertising on a television channel is accomplished by downloading appropriate advertisements from an advertising server to a subscriber's set top box over an out-of-band channel. The set top box monitors for events. When an event occurs, the set top box signals the head-end to download ads to the set top box. The ads may be selected using demographic or common channel preference pattern information associated with the set top box.

Abstract: A method and system for providing selective advertising on a television channel is accomplished by downloading appropriate advertisements from an advertising server to a subscriber's set top box over an out-of-band channel. The set top box monitors for download triggers to provide advertisements to the subscriber's set top box and advertising triggers to insert advertisements when an advertising opportunity occurs. The advertisements can be downloaded in advance of any advertising triggers to a local storage means associated with the set top box, if available.

Abstract: A method and system for providing selective advertising on a television channel is accomplished by downloading appropriate advertisements from an advertising server to a subscriber's set top box over an out-of-band channel. The set top box monitors for triggers to provide advertisements to the subscriber's television. The advertisements can be downloaded in advance of any ad opportunity triggers to a local storage means associated with the set top box, if available.

Abstract: A method and apparatus (50, 70, 90) for making a back glass substrate (24) for a plasma display panel (20) by forming hot sheet glass G heated above its annealing point and embodied either as a continuous ribbon (60) or discrete sheets (74). The hot forming provides the hot sheet glass G with gas discharge troughs (38) spaced by barrier ribs (40). The hot forming of the sheet glass G heated above its annealing point can be performed by a rotatable forming member (62) having curved projections (66) or by a press member (78) having elongated projections (84). The constructed plasma display panel (20) has a front glass substrate (22) and a back glass substrate (24) with the gas discharge trough and barrier rib construction made by hot forming above the annealing point.

Abstract: A method and apparatus (50, 70, 90) for making a back glass substrate (24) for a plasma display panel (20) by forming hot sheet glass G heated above its annealing point and embodied either as a continuous ribbon (60) or discrete sheets (74). The hot forming provides the hot sheet glass G with gas discharge troughs (38) spaced by barrier ribs (40). The hot forming of the sheet glass G heated above its annealing point can be performed by a rotatable forming member (62) having curved projections (66) or by a press member (78) having elongated projections (84). The constructed plasma display panel (20) has a front glass substrate (22) and a back glass substrate (24) with the gas discharge trough and barrier rib construction made by hot forming above the annealing point.

Abstract: A fast-acting solenoid actuated valve assembly is disclosed which utilizes a pressure biased primary valve member and a secondary solenoid actuated valve member. The solenoid is operative to initially partially open the secondary valve member to thereby vent the primary valve pressure biasing to thereby enable opening of the primary valve. The secondary valve member is moved to a fully open position by the force generated by the initial venting of the biasing pressure. The speed of operation of the present valve assembly renders it particularly well suited for use in motor vehicle air bag assemblies. Actuating circuits are also disclosed for actuating the valve assembly.

Abstract: Provided is a support assembly for mounting an array of photovoltaic panels to a support surface such as the ground. According to the invention, there is provided a plurality of front and rear support posts, each post having an anchor portion to be driven into the support surface and a leg portion which is nested therein and longitudinally adjustable to raise or lower corresponding front and rear horizontal supports. Photovoltaic panels are mounted lengthwise across the horizontal supports in a predetermined position to minimize the stress thereon caused by wind load. The horizontal supports further comprise wiring raceways to support wiring harnesses originating from the photovoltaic panels and terminating at the end of each row of photovoltaic panels in the array.

Abstract: Provided is a method and apparatus for installing in the ground an array of posts of a photovoltaic panel support assembly. According to the invention, there is provided an adjustable template which comprises a rigid frame having a plurality of adjustable post guides and a plurality of guide rails, which are used in cooperation with an impact driver to install a plurality of support posts quickly and easily. The template is portable and provided with clamping means and a plurality of laser targets for use in cooperation with an alignment laser and an elevation laser to secure and align the template to previously installed posts.

Abstract: An electromagnetic positioner for positioning the drive arm of a servovalve or the like, comprising an armature extending between laterally spaced pairs of vertically disposed and vertically spaced coils for pivotal movement in a plane which includes the axes of said coils, a drive arm assembly comprising a flexure tube secured to the base or lower pole of the positioner, and extending upwardly to a position above the level of the armature, and an adapter secured at its lower end to the armature and its upper end to the upper ends of the flexure tube and drive arm so that the pivot point of the armature is adjacent but above the center of rotation of the drive arm. Also provided is a null adjusting arrangement in which the driven parts are located partly in the body of the positioner and partly in the body of the pilot valve, thereby freeing space in the positioner and reducing the height thereof.

Abstract: An electromagnetic positioner for positioning the drive arm of a servovalve or the like, comprising an armature extending between laterally spaced pairs of vertically disposed and vertically spaced coils for pivotal movement in a plane which includes the axes of said coils, a drive arm assembly comprising a flexure tube secured to the base or lower pole of the positioner, and extending upwardly to a position above the level of the armature, and an adapter secured at its lower end to the armature and its upper end to the upper ends of the flexure tube and drive arm so that the pivot point of the armature is adjacent but above the center of rotation of the drive arm. Also provided is a null adjusting arrangement in which the driven parts are located partly in the body of the positioner and partly in the body of the pilot valve, thereby freeing space in the positioner and reducing the height thereof.

Abstract: A two-stage miniature electrohydraulic servovalve including an electromagnetic positioner having a flexure tube mounted drive arm secured to and movable with an armature movable in accordance with a combined magnetic field resulting from both permanent magnets and an electrical signal fed to electromagnetic coils, a four-way hydraulic valve main valve stage including a valve body having a sleeve mounted therein with two annular, internal, axially spaced apart metering grooves, a metering spool having five lands alternating with four metering grooves positioned within the sleeve for controlled axial movement with respect to the sleeve, and end caps positioned over the ends of the sleeve and a jet pipe pilot stage including a jet pipe member secured to the end of the drive arm having a jet pipe nozzle aligned with the drive arm and a hydraulic fluid feeder passage which passage is disposed at right angles to the plane of movement of the drive arm, a resiliently mounted counterbalance positioned on the drive arm

Abstract: An A.G.C. circuit is disclosed having two modulators connected in series to modulate an input signal and an amplifier for amplifying the output of the second modulator and applying it to an output terminal. A detector detects the output of the amplifier and an integrator compares the detected level with a reference so as to produce a control signal dependent on the error. The control signal is applied to the first modulator through an impedance path having an impedance which decreases with increasing frequency, and is applied to the same modulator through an impedance path having an impedance which increases with increasing frequency. In this way, the first modulator performs modulation primarily dependent on the A.C. component of the control signal and a second modulator performs modulation primarily dependent on its D.C. components of the control signal.

Abstract: Laminated plate cylindrical receiver plug assembly structure having rectangular cross section passages therein which extend axially of the plug assembly through one end thereof on opposite sides of a very narrow divider plate and radially out of the plug assembly on opposite sides of the divider plate from the side on which the axially extending portion of the passages are on is produced by producing a plurality of separate plates having axially and/or transversely extending openings in one end thereof in rectangular form, coating every other one of the plates with brazing material, placing the rectangular plates in side by side surface engagement with the openings therein in alignment to form rectangular cross section axially and radially extending passages through the plug assembly and subjecting them to brazing temperature and pressure and then machining the ends of the brazed together rectangular plates having the openings therein into a cylindrical form and cutting off the other end of the plates.

Abstract: An electromagnetic positioner for positioning the drive arm of an electrohydraulic servo valve or the like, comprising a mounting plate, a flexure tube secured to the mounting plate, a drive arm secured to the flexure tube, a top plate secured in parallel spaced apart relation to the mounting plate having a central opening therethrough, permanent magnets extending between the mounting plate and too plate, pole pieces secured to the mounting plate and extending toward the top plate on opposite sides of the flexure tube, control coils surrounding the pole pieces, and an armature positioned within the opening through the top plate in peripheral spaced relation thereto and secured to the flexure tube in spaced relation thereto and secured to the flexure tube in spaced relation to the pole pieces. Said electromagnetic positioner further including balance adjust structure, null adjust structure, and gain adjust structure.