Abstract: A vehicle's position is determined, normally within .+-.0.37 inches, relative to an imaginary center line of a road lane along which are buried, normally about every 13 feet, completely passive resonant circuits, normally each a simple, inexpensive and durable 1-turn 11.5" diameter shallow loop of #12 copper wire in series with a proper capacitor, nominally 10 nanofarads, for resonance. In-lane positional determination is in and by a phase detection circuit, and process. A low-power r.f. electromagnetic field, normally 1.9432 MHz, is maintained in a (i) vertically- or (ii) horizontally-oriented first loop, normally a 6-turn 6-inch coil. Resonance is electromagnetically induced in nearby road coils; radiated fields are not involved. The induced r.f. field is itself then detected in a another, second, loop means within the vehicle.

Abstract: A golf club putter head affixing an elongate spirit level may be tilted relative to earth and rested on its two frustaconical projections so as to accurately measure earth inclination nonetheless that, inter alia, the sole of the putter head is curved, and thus unsuitable to serve to reference the putter head to the earth's surface. The two frustaconical projections are preferably spaced parallel, equal length, maximally separated and axially weighted. The spirit level is preferably both removably affixed--permitting use of the putter in regulation play--and of maximum elongate extent. A preferably offset hostel is affixed in a position preferably substantially midway between maximally-separated spaced-parallel frustaconical projections.

Abstract: A reverse osmosis water purification system in which the concentrate water normally produced by the process is not disposed of by routing it to a drain line or otherwise, but is redirected to the main water supply. The system includes the well-known components of a reverse osmosis membrane, pre-filters which are installed ahead of the reverse osmosis membrane, and an appropriate tank to store the purified water. In addition, the system includes a pump and associated pressure sensing device for increasing the pressure of the incoming non-processed water to the reverse osmosis unit, and a pipe to carry the concentrate water from the reverse osmosis unit to the incoming main water supply, be it either a cold or hot water line. Additionally included is a one-way check valve in the concentrate water line, and a sensing device in the purified water storage tank to turn the pump off whenever the quantity of water in the tank exceeds a predetermined amount.

Abstract: A gravity meter has a portable housing for holding a corner cube retroreflector that can be dropped within the housing. The housing also holds a laser and an optical fiber having a first end in light communication with the laser. Additionally, the fiber has a second end which terminates at a ferrule. Light from the laser propagates through the optical fiber, and a portion of the light is reflected by the second end of the fiber back through the optical fiber to a beam splitter, while another portion of the light propagates through the second end of the fiber and is reflected by the falling corner cube back through the fiber to the beam splitter. The two reflected portions of the laser light interfere with each other to generate an interference fringe pattern which is extracted by the beam splitter.

Abstract: A monolithic, buried-substrate, ceramic multiple capacitor is laid up as multiple capacitors that are isolated, one to the next, by a dual-dielectric-constant, three-layer-laminate, isolation layer. Each isolation layer has and presents (i) an innermost layer of a low dielectric constant (low K) material, located between (ii) outer laminate layers of a high dielectric constant (high K) material. By such construction negative effects of the physio-chemical reaction (i) occurring at the boundary between the high-K and low-K layers, (ii) contaminating the high-K dielectric and lowering its K, and (iii) undesirably serving both to lower the capacitance of any (buried substrate) capacitor that makes use of the ("contaminated") high-K dielectric while increasing capacitor leakage current, are mitigated or avoided.

Abstract: A spacer-comb element including (i) a longitudinal central axis and (ii) three or more, preferably four, teeth arrays radially extending about the central axis and extending along a length thereof, serves to emplace arrayed slit apertures within flat sheets of a gel state material that is itself suitable to receive samples upon which electrophoresis may be performed. The spacer-comb element is placed between the sidewalls of, and engaged by, a tray holding the gel material in a central reservoir so that the teeth of only a selected one array extend downwards into the tray. An opposite, upwards-extending, teeth array engages the underside of an overlying tray, preferably at an optional complimentary groove feature on the tray's underside, so as to support the tray.

Abstract: A multimedia information delivery network system is disclosed for delivering multimedia programs to a plurality of users at user-selected times. The network includes a wide area transmitter for transmitting the multimedia programs. Additionally, the network includes a plurality of network servers for receiving the programs and for selectively caching the programs for retransmission to downstream network servers and/or directly to one or more users at the user-selected transmission times. A scheduler receives the user-selected transmission times and, in response thereto, establishes a network server path by which the multimedia program is efficiently delivered to each user at the respective user-selected time.

Abstract: A multimedia information delivery network system is disclosed for delivering multimedia programs to a plurality of users at user-selected times. The network includes a wide area transmitter for transmitting the multimedia programs. Additionally, the network includes a plurality of network servers for receiving the programs and for selectively caching the programs for retransmission to downstream network servers and/or directly to one or more users at the user-selected transmission times. A scheduler receives the user-selected transmission times and, in response thereto, establishes a network server path by which the multimedia program is efficiently delivered to each user at the respective user-selected time.

Abstract: An ear canal device holder for devices other than speaker/microphone amplification systems that am to be inserted into the canal of the human ear. The device holder is made of a flexible silicone material comprising a body and structural support element(s) such that the device is held within the body of the holder and the body and device are secured in the ear by the structural element(s). In addition the device holder minimizes the attenuation of sound waves that pass through the ear canal to the tempanic membrane, while maximizing comfort and secure fit.

Abstract: A high capacity (1 Gbyte), high throughput (1.1 Gbyte/s) motionless-head parallel-readout optical disk, and a detector array integrated on substrate with an Si/PLZT Exclusive-NOR gate array, implement a fast retrieval (25 ms) associative memory/content addressable memory capable of 10.sup.10 bit-operations per second. The disk stores arrayed 1-D holograms, preferably computer-generated from 128.times.128 pixel images by Fourier transform. Reverse transform upon disk readout is by lenses, preferably by a single hybrid refractive/diffractive lens. The reconstituted 2-D image, or optical word, is detected and compared to an electrical data word in an fast integrated optoelectronic circuit. The circuit permits (i) a variably preset "match" detection threshold, and (ii) dynamically variable, sub-image, field size of the search. In a first mode of operation all images (or sub-images) that are sufficiently close to a preset query threshold are retrieved in one disk rotation.

Abstract: A pseudo-analog electronic or optoelectronic neuron stores synaptic weights as analog quantities, preferably as charges upon capacitors or upon the gates of floating gate transistors. Multiplication of a stored synaptic weight times a binary pulse-width-modulated synapse input signal periodically produces electrical charge of a first polarity on a first synapse capacitor. Meanwhile a fixed charge of opposite polarity is periodically produced at the same frequency upon another, second, synapse capacitor. The charges on both synapse capacitors at many synapses are periodically accumulated, and integrated, at a single neuron soma in the form of pulse-amplitude-modulated charge-encoded signals. This accumulation, and integration, transpires continuously progressively by a switched-capacitor technique, and during the entire duration of the input signal to each synapse. The net final result, expressed in signed electrical charge, is converted back to a PWM binary signal for transmission to further neurons.

Abstract: Selected domains, normally 10.sup.3 .times.10.sup.3 such domains arrayed in a plane, within a three-dimensional (3-D) volume of active medium, typically 1 cm.sup.3 of spirobenzopyran containing 10.sup.2 such planes, are temporally and spatially simultaneously illuminated by two radiation beams, normally laser light beams in various combinations of wavelengths 532nm and 1024nm, in order, dependent upon the particular combination of illuminating light, to either write binary data to, or read binary data from, the selected domains by process of two-photon (2-P) absorption. One laser light beam is preferably directed to illuminate all domains of the selected plane in and by a one-dimensional spatial light modular (1-D SLM). The other laser light beam is first spatially encoded with binary information by 2-D SLM, and is then also directed to illuminate the domains of the selected plane.

Abstract: A parallel architecture matrix algebraic processing system exhibits patterns of arrayed (i) light transmitters and (ii) light receivers that are identical, but at differing scales. Planar arrays of one or more optoelectronic processors--principally semiconductor chips or chip arrays--having both computational and light input/output capabilities optically communicate from one plane to the next through free-space space-invariant optical data distributions--principally lenses and computer-generated holograms--having both replication and distribution capabilities. Each optoelectronic processor, or OP, consists of a number of arrayed optoelectronic processing elements, or OPEs. The OPEs, in turn, typically consist of a number of optoelectronic sub-processing units are preferably electrically interconnected in a tree-based structure, preferably an H-tree. Leaf units include typically one light detector plus local memory, logic circuitry, and electrical input/output.

Abstract: A motionless parallel head reads an optical disk having an active surface encoded with an arrayed multiplicity of one-dimensional holograms. Each 1-D hologram is a computer-encoded representation of, typically, one 128 pixel slice of an image. A group, typically 128, 1-D holograms are positionally distributed, and positionally shifted or staggered one to the next, radially along the disk's active surface so as to fit a complete radius. Typically 14,000 groups are circumferentially-displaced around a 51/4" Compact Disk (CD), forming a herringbone pattern. During readout the encoded CD is simultaneously illuminated along the entirety of one of its radius lines within which a group of holographic data blocks are fitted.

Abstract: An active medium, typically a photochromic material and more typically spirbenzopyran, maintained in a three-dimensional matrix, typically of polymer, is illuminated in selected regions by two UV laser light beams, typically of 532 nm. and 1064 nm. wavelength, to change from a first, spiropyran, to a second, merocyanine, stable molecular isomeric form by process of two-photon absorption. Regions not temporally and spatially coincidently illuminated are unchanged. Later illumination of the selected regions by two green-red laser light beams, typically of 1064 nm wavelength each, causes only the second, merocyanine, isomeric form to fluoresce. This fluorescence is detectable by photodetectors as stored binary data. The three-dimensional memory may be erased by heat, or by infrared radiation, typically 2.12 microns wavelength. Use of other medium permit the three-dimensional patterning of three-dimensional forms, such as polystyrene polymer solids patterned from liquid styrene monomer.

Abstract: An ornamental Christmas light decorating system containing one or more clusters of flashing lights, which can be shaped by a user and attached to various surfaces. The clusters provide a perception of directional movement or chasing of light.

Abstract: A system and method are disclosed for producing electro-optic components with transparent, ferroelectric PLZT (perovskite) film characteristics, without lead diffusion. In particular, the fabrication of PLZT-on-sapphire electro-optic components for devices such as spatial light modulators, integrated infrared detectors, and optoelectronic integrated circuits is disclosed, permitting integration of such devices with semiconductor devices having the same substrate, such as silicon-on-sapphire circuits. The system comprises a PLZT film deposition apparatus, a silicon dioxide deposition apparatus, an annealing apparatus, and an optional plasma etching apparatus. During film deposition, material from a PLZT target (source) of suitable (9/65/35) composition is deposited on the substrate and is epitaxially grown on the R-plane (1102) of the substrate, forming a non-ferroelectric, pyrochloric film. The substrate and film are then placed in a silicon dioxide (SiO.sub.2) deposition chamber where SiO.sub.