Abstract: A divider/multiplier circuit (10) is disclosed. In a divider mode, numerator terms are coupled to a normalizer (14) which generates normalized numerator values and corresponding numerator exponent values therefrom. Denominator terms are coupled to a look-up normalizer (20) which generates normalized denominator inverse values and corresponding denominator exponent values therefrom. The numerator and denominator exponent values are summed in an adder circuit (18) to generate a sum exponent value. The normalized numerator and inverse denominator values are multiplied in a multiplier circuit (16) to generate a normalized quotient value. The normalized quotient value is denormalized according to the sum exponent value. In a multiply mode of operation first and second multiplicands are coupled to the multiplier circuit (16). In a high precision divide mode, a sequence of numerator and inverse denominator values are coupled to the multiplier circuit (16) to generate a sequence of partial product terms.

Abstract: A method and apparatus of displaying video and graphics data together in a computer graphics display using only the memory needed for the graphics display includes determining the location of the video window in the frame buffer, writing video data to the portion of the frame buffer bounded by the video window. During the raster scan of the frame buffer, if the raster position is within the video window, video data are read from the video data addresses within the video window. When the displayed video window position is changed, the video data are moved accordingly.

Abstract: A display refresh system (10) is disclosed wherein a display image is stored in a screen memory (12) as a number of screen rows (26) having consecutive addressable units. A redundancy memory (38) includes a redundancy row (48) corresponding to each screen row (26). Each redundancy row (48) stores run length data that indicates the number of identical consecutive addressable units within a screen row (26). Addressable units are written with accompanying run lengths to a FIFO (54). A register repeater (56) repeats the addressable unit at the FIFO output (62) a number of times equal to the run length. The run length is used to advance the refresh address to the next group of identical consecutive addressable units within the screen row (26).

Abstract: A golf club protector comprises a split sleeve which can be placed on the shaft of a golf club to grip the latter and then inserted into the free end of a golf club storage tube.

Abstract: The parameters of a digital signal are extracted by the application of autocorrelation and crosscorrelation techniques to effectively measure the frequency and time behavior of a digital signal. The method employs digital autocorrelation and crosscorrelation to determine these parameters. Autocorrelation allows the measurement of signal frequency by measurement of instantaneous signal phase. Crosscorrelation allows measurement of relative phase between two or more signals in two or more channels by measurement of instantaneous phase and by referencing the instantaneous phase to the autocorrelation function. The autocorrelation function and crosscorrelation function preserve relative amplitude and phase. Measurement of relative amplitude and phase allows direction finding calculation for any current class of system that uses amplitude and/or phase to derive angle or arrival.

Abstract: Disclosed is a process for making reduced odor individualized, crosslinked fibers which includes the steps of providing cellulosic fibers, contacting the fibers with a solution containing a C.sub.2 -C.sub.9 polycarboxylic acid crosslinking agent, mechanically separating the fibers into substantially individual form, drying the fibers and reacting the crosslinking agent with the individualized fibers to form intrafiber crosslink bonds. The individualized cellulosic fibers are then contacted with a strong alkaline solution and strong oxidizing agent to reduce the odor and increase the brightness. Preferably, the crosslinking agent is citric acid, and preferably, between about 1.0 weight % and about 12.0 weight % of the crosslinking agent reacts to form the intrafiber crosslink bonds. Preferably, the alkaline solution is an aqueous solution of sodium hydroxide, and preferably, about 0.09 weight % of the sodium hydroxide, on a dry fiber weight basis, is applied to the crosslinked fibers.

Abstract: A cryostat assembly having an outer vessel within which is provided substantially upright inner vessel for containing an item, such as an electromagnet, to be cooled. The inner vessel is suspended from the outer vessel by a number of low thermal conductivity support members secured at one end to points on the outer vessel corresponding to the height of the center of gravity of the assembly and an item in use and at the other end to the inner vessel at points not higher than the said points on the outer vessel.

Abstract: A wind and sun barrier includes a barrier panel with a barrier screen effective to reduce wind velocity and to produce shade, the barrier panel pivotally mounted between a pair of support posts. The barrier panel may be pivoted from a vertical position, for blocking wind, to a horizontal position, providing shade thereunder. Releasable lock mechanisms are provided to maintain the barrier in the desired position. A plurality of barrier panels may be aligned between a plurality of posts, to form an elongated barrier wall oriented either vertically or horizontally, depending upon the weather conditions.

Abstract: An emulation device including a serial scan testability interface having at least first and second scan paths, and state machine circuitry connected and responsive to said second scan path generally operable for emulation control of logical circuitry associated with said emulation device.

Abstract: A light-activated transducer includes a transparent electrically-insulating substrate (2) having on one surface an electrode structure. The electrode structure includes an electrode portion (5a) containing an aperture for passage therethrough of light which has passed through the substrate, a contact pad (5c) spaced from the electrode portion, and an electrical feedthrough (5b) connecting the electrode portion to the contact pad. An insulator layer (3) is adhered to the surface of the substrate and on the feedthrough, and surrounds the electrode portion while leaving uncovered the contact pad and the electrode portion and a corresponding region of the substrate. A conductive or semiconductive cover sheet (1) is adhered to the insulator layer and supported thereby in spaced overlying relationship with the electrode portion and the corresponding region of the substrate. The, cover sheet, insulator layer, and the substrate form a cavity that, when sealed, contains an ionisable gaseous filling.

Abstract: A laser printer characterized by compact construction, and by ease of servicing and film loading. A light-tight upper compartment contains a printer station which includes a film moving roller at one side of the apparatus, and toward which film is fed sideways from a registration station. The printer includes a laser and optics located above the alignment station. Various sizes of film are stored in respective magazines carried by stacked drawers located below the alignment station, and a transport mechanism located in front of the magazine withdraws film from the drawers and carries it upwardly and moves it into the alignment station by movement of the film toward the rear of the apparatus. Film moving from the printer station moves downwardly along one side of the machine into a chute and then to a roller device which can direct the exposed film either into a storage magazine under the fresh film magazines, or to an adjacent processor located to the side of the printer.

Abstract: A modular logic circuit is disclosed, where each of the modules may be selected for testing by means of a scan path within the module made up of serial register latches (SRLs), each SRL being connected to predetermined nodes in the module functional circuitry. Each of the modules has a test port, which is independent from the system bus interconnections in the logic circuit, and which has an SRL for receiving serial data for selection of the scan path within the module. Responsive to the logic state stored in a module's selection SRL, the scan path within the module will either be enabled or disabled. After selection of a module or modules for testing, serial data is scanned into the SRLs in the scan path for setting the associated predetermined functional circuitry nodes; after exercise of the functional circuitry, the SRLs in the scan path store the results of the exercise at the predetermined nodes.

Abstract: A registration mechanism registers sheets of different sizes so the sheets are properly positioned as they enter an imaging station adjacent the mechanism. A fixed urging guide at one side of a platen urges sheets of the largest size toward a registration guide at another side of the platen for aligning the sheet relative to the guide. Other urging guides move through slots in the platen between a raised position relative to the platen, wherein they are effective to urge smaller sheets toward the registration guide, and a lowered position at or below the platen surface.

Abstract: A trailer capable of carrying a boat and vehicle in a dual load mode of operation wherein the boat is mounted rearwardly of the vehicle in an inclined position with the bow of the boat above portions of the vehicle being carried. The trailer is also convertible into a single load mode of operation wherein the boat is carried low in a conventional orientation by lowering a supporting boat carriage into a collapsed position near the frame of the trailer. The trailer is provided with a boat carriage which is connected to the frame of the trailer and supported by a lifting mechanism which causes the boat carriage and any supported boat to shift rearwardly when they are moved from the collapsed position into the extended raised position. This rearward movement automatically shifts the weight of the boat carriage and any supported boat rearwardly to counteract the loading associated with a vehicle on forward portions of the trailer.

Abstract: A head transport assembly includes a sled supporting a magnetic head for movement along a guide path generally oriented toward the drive spindle of a drive motor. The sled, which is supported against a guide rod defining the guide path, includes two adjustment points along the guide rod--a first adjustment point proximate the head and a second adjustment point outboard of the first in relation to the drive spindle. By acting on the first point to pivot the sled about the second point, the head is brought onto a true radial path intersecting the center of the drive spindle. The azimuth of the head is next adjusted by acting on the second point to pivot the sled about the first point until the desired azimuth angle is obtained.

Abstract: A modular logic circuit is disclosed, where each of the modules may be selected for testing by means of a scan path within the module made up of serial register latches (SRLs), each SRL being connected to predetermined nodes in the module functional circuitry. Each of the modules has a test port, which is independent from the system bus interconnections in the logic circuit, and which has an SRL for receiving serial data for selection of the scan path within the module. Responsive to the logic state stored in a module's selection SRL, the scan path within the module will either be enabled or disabled. After selection of a module or modules for testing, serial data is scanned into the SRLs in the scan path for setting the associated predetermined functional circuitry nodes; after exercise of the functional circuitry, the SRLs in the scan path store the results of the exercise at the predetermined nodes.

Abstract: The sensing head of a two-color band ratioing pyrometer of a known type using a fiber optic cable to couple radiation to dual detector photodiodes is improved to have high spatial resolution by focusing the radiation received through an objective lens (i.e., by focusing the image of a target area) onto an opaque sheet spaced in front of the input end of the fiber optic cable. A two-mil hole in that sheet then passes radiation to the input end of the cable. The detector has two channels, one for each color band, with an electronic-chopper stabilized current amplifier as the input stage followed by an electronic-chopper stabilized voltage amplifier.

Abstract: A newspaper dispenser includes a housing with an upwardly biased platform therein for supporting a stack of newspapers. A scoop assembly which dispenses a single newspaper at a time, is mounted in the housing and includes a pusher arm and a scoop connected to reciprocating rotatable drive shaft. Rotation of the shaft in one direction causes the pusher arm to drop onto the top newpaper and push the top layer rearwardly, while simultaneously dropping a scoop in front of the folded edge of the newspaper. Rotation of the shaft in the opposite direction causes the scoop to slide under the paper, causes the pusher arm to pull the paper onto the scoop, and causes the pusher arm to raise off of the paper as the scoop tilts to drop the paper down a chute for dispensing. A rotatable handle is connected to the scoop assembly via a series of gears and rack and drive gear to operate the reciprocating cycle to dispense a paper.

Abstract: A collapsible canopy for the cargo bay of pick-up trucks, including transversely extending ribs which are longitudinally slidable along tracks on the sides of the cargo bay. Rack and pinion assemblies attached to the legs of the rearward rib, and integrally tied to a rack attached to each track, maintain transverse perpendicular alignment of the legs of that rib. Shafts projecting from the pinions and mounted to the legs of the rear rib are connected by an overhead axle with universal shafts at each end such that longitudinal movement of one leg of the rear rib will rotate its pinion, which is transmitted via the overhead axle to the opposite pinion and will thereby simultaneously move the other leg.