Abstract: A plural band telescopic antenna, including a band for frequencies much higher than the frequencies of the AM/FM band, is realized by making one telescopic section into a dipole high frequency antenna with its coaxial cable feed line extending through the telescopic antenna to the feed point of the one section. A double-tuned dipole embodiment and different arrangements for coupling the feed line through a rotational drive force applying mechanism are shown. In one embodiment, the line feed is also used for coupling mechanical extension and retraction forces to the one section.

Abstract: A plural band telescopic antenna, including an added band much higher than the frequencies of the AM/FM band, is realized by making one telescopic section into a center-fed, high frequency antenna and using its coaxial cable feed line for also coupling mechanical extension and retraction forces to that section.

Abstract: A distortion simulating pilot is injected at the input of an amplifier which uses feed forward distortion correction. The magnitude of the pilot signal in the amplifier output is used to control a decreasing step size circuit algorithm for adjusting the gain and phase of the feed forward distortion signal to eliminate substantially the pilot signal and the distortion introduced by the amplifier.

Abstract: A fluorophotometer for determining the concentration of a fluorescent material in an eye, including a light source producing a beam of light traversing a path in the eye to excite the material to emit fluorescence, optics for imaging the path and fluorescence at a detecting plane, a linear photodiode array at the detecting plane for detecting the fluorescence along the path, and a microprocessor for collecting data from the array and producing information of the concentration of the fluorescent material.

Abstract: Information is stored, using a relatively low-power light beam, by redistributing the material in a deformable film. In a disc configuration, positioning of the light beam is achieved by referencing to a previously recorded track. In a document storage and retrieval system the document is scanned with the resultant scanned signal modulating the writing light beam producing a recorded track. This track is optically read with the resultant signal applied to a printer. For optimum utilization of the area, the recording and readout take place at constant velocity.

Abstract: A flush control mechanism for a toilet tank includes a pivotable control element which is pivotable about a generally horizontal axis in the tank, a trip lever mechanism, a fill water valve element which is connected to both the pivotable control element and the main water supply pipe which extends into the toilet tank, and an adjustable valve element. The pivotable control element includes a weightbox which is divided by a baffle into a water inlet chamber and a water outlet chamber, the floor of the weightbox including a drain hole which communicates with the water outlet chamber. The fill water valve element includes a primary nozzle for discharging fresh water directly into the toilet tank and a secondary nozzle for discharging fresh water into the water inlet chamber of the pivotable control valve element, as well as a control arm which is connected to the end of the pivotable control valve element.

Abstract: An ornamental lamp which includes a light transmitting envelope containing a fluid such as an inert gas or air and at least one electrode disposed within or without said envelope and applying high voltage at a high frequency to said electrode to ionize the fluid to produce ornamental displays and varying the characteristics of the displays by changing the magnitude of the voltage, the frequency and wave form through modulation and a power supply for operating said lamp utilizing a transformer having a high voltage secondary and two low voltage primaries with said primaries being connected to said amplifier to produce a positive feedback signal to cause oscillation thereof and filter means for effecting modulation of the feedback signal.

Abstract: Metal shims are positioned within intersecting slots of a lower mold member, normally employed in the molding of an open grid fiberglass reinforced molded resin grating with the shims being of a height less than the vertical height of the slots. The grating is repositioned in the slots such that the upper ends of the grating bars project above the upper surface of the lower mold member. The upper mold member bearing projecting grids corresponding to the slots is covered with a solid checker plate. An impregnated glass sheet formed of the same molding compound as the open grid molded resin grating is interposed between the checker plate and the grating. A further shim defining the extent of compression of the molding compound sheet is interposed between the lower mold member and the checker plate.

Abstract: A color image is recorded on film at the television field rate with alternate film frames representing the luminance and chrominance information. The chrominance information is encoded by filtering the color image through a striped color filter. On playback two line scanners are used to simultaneously scan the luminance and chrominance frames to provide the desired information simultaneously. A decoding signal is used to decode the encoded chrominance information and derive color-difference signals.