Abstract: A local multipoint distribution service system having an antenna (1) for transmitting a signal of reused frequency within a specified range from the antenna (1), the antenna (1) having multiple radiating antenna elements, each of the antenna elements being adjusted in phase and in amplitude of radiated signal across the radiationg elements to mitigate radiation above the horizon, and each of the antenna elements being adjusted in phase and in amplitude of radiated signal therefrom to decrease attenuation in radiated power with distance from the antenna (1).

Abstract: An optical connector system comprising a connector for interconnection to a mating component, the first connector defining a non-mated state when not connected to the mating component, and a mated state when connected to the mating component, the connector having a front and rear orientation and comprises at least a first inner housing containing at least one fiber biased forward therein and having at least one first latching member; and a first outer housing containing at least a portion of the first inner housing, the first inner housing being slidably mounted in the first outer housing, wherein the mating component comprises at least at least one second latching member for interengaging with the first latching member and, when the first connector and the mating component are in the mated state, the forwardly-biased fiber is urged into the mating component while the inner housing is held secure by the first and second latching members.

Abstract: A process for cutting or splitting at least one optical fiber at a predetermined angle, wherein the fiber is introduced into a holding and positioning device and is cut by a pulsed laser beam.

Abstract: An optical coupling comprising: (a) a housing having first and second ends and having an optical axis, the first end having a first cavity for receiving an optical component, the second end having a second cavity for receiving a single mode fiber along the optical axis; and (b) a section of a multimode fiber disposed within the housing and along the optical axis between the first and second cavities, the multimode fiber having a first fiber end and a second fiber end, the first fiber end interfacing with air, the second fiber end being polished to optically couple with the single mode fiber through physical contact.

Abstract: A signal connector assembly with a plug contact within a plug having a high resistive portion. When the plug of the assembly first makes contact with the electrical receptacles within a mating receptacle, the high resistive portion prevents a current surge. As the plug is further inserted into the receptacle, the energy passing from the plug to the receptacle is gradually increased. Eventually, the receptacle contacts within the receptacle pass the high resistive portion and make contact with the conductive portion of the plug contact, thereby permitting transmission of valid signals without the generation of spurious errors.

Abstract: A solder-coated article is described. The article comprises (1) a dielectric core having a largest dimension ranging from 1 to 1000 microns; (2) a solderable metal layer over the core; and (3) a solder layer over the metal layer. Preferably, the dielectric core is a spherical core of ceramic or glass material that ranges from 25 to 200 microns in diameter. Copper and nickel are preferred materials for the solderable metal layer. The solder is preferably selected from a solder comprising lead and tin and a solder comprising lead and indium, more preferably a 63% Sn-37% Pb solder, a 95% Pb-5% Sn solder, or a 50% Pb-50% In solder. Also described are modified substrates and (solder bonded assemblies) that can be created using such solder-coated articles, as well as a procedure for making the same.

Abstract: A method for making a bond-wire interconnect to pass signals between different substrates is described. According to this process, a first compensated bond wire interconnect is made to connect two substrates of a first type at an operating frequency, the first interconnect comprising a bond-wire of a fixed length and a first pair of compensation structures formed from a lowpass filter prototype. A second compensated bond wire interconnect is made to connect two substrates of a second type at the operating frequency, the second interconnect having a bond-wire of the fixed length and a second pair of compensation structures formed from the lowpass filter prototype. A bond-wire of the fixed length, one compensation structure from the first pair, and one compensation structure from the second pair, are combined to make a third compensated bond wire interconnect to connect a substrate of the first type with a substrate of the second type at the operating frequency.

Abstract: A wireless communications system has a plurality of base stations 1, a plurality of mobile vehicular repeater units 2, and a plurality of portable units 3. In a public safety network context, each mobile vehicular repeater unit 2 is associated with a portable unit 3, and both are associated with a single user. The object is for the user to be able to access the wireless network for any geographic location. In cases where a geographic area is shadowed from a base station 1 and communication directly between the portable unit 3 and the base station 1 is not possible, it is beneficial to use the mobile vehicular repeater unit 2 as a vehicular repeater to relay communications between the portable unit 3 and the base station 1. When the mobile vehicular repeater unit 2 is operating as a repeater and communicating with the portable units, the frequency plan for transmission and reception is reversed.

Abstract: An isolation structure for high frequency integrated circuits is a conductive material disposed over a region of active gallium arsenide substrate. The conductive material over the active region creates a lossy RF path to reduce undesired coupling between adjacent conductors. In one case, two RF signal lines (1,2) terminated at the same via pad (3) have weaker coupling than in prior art via structures due to the lossy RF structure disposed on isolating fractional portions (10,11) of the via pad (3). The isolating fractional portion (10,11) are intermediate terminating fractional portions (8,9) of the via pad (3) to which the signal lines (1,2) are connected. In another case, two parallel bias lines (12,13) are disposed over an active layer region (6) increasing the RF loss between them and advantageously reducing the RF coupling. The reduced RF coupling improves RF isolation and permits increased miniaturization.

Abstract: An electrical connector for terminating flat cable of the type having a plurality of signal and ground conductors in parallel alignment comprises a housing which holds a plurality of signal contacts and a ground bus. Each of the signal contacts has a signal conductor termination slot configured for insulation displacement termination of a respective said signal conductor. The ground bus has a plurality of ground conductor termination slots each configured for insulation displacement termination of a respective said ground conductor, and at least one bypass slot configured to permit at least one of said signal conductors to pass through said ground bus without termination thereto. The signal conductor termination slots, the ground conductor termination slots and the at least one bypass slot are arranged such that the plurality of signal and ground conductors reside in a common plane in the connector after termination thereto.

Abstract: A backer plate (40) secured to leading end portion (20) of flexible film circuit (10), providing rigidity to facilitate manipulation of the circuit during mating with and unmating from a receptacle connector (26). Backer plate (40) may either be molded of insulative material or be conductive to serve as a ground connection. Backer plate (40) has side walls (48) beside the flex film that provide flanges (54) to precisely guide mating with connector (26) along slots (32), and may also provide detents (56) for retention in the connector. Backer plate (40) may also provide bosses (60) to stop forward movement at a precise location aligning the strip circuits with connector contacts (30). Flanges (54) offset from the central plane of the strip/backer plate assembly, line up with slots (32) offset from the central plane of cavity (24) in order to permit insertion only when the assembly is properly oriented, thus serving to polarize the assembly.

Abstract: An optical connector system comprising first and second complementary connectors, which, when separated, define a non-plugged state and, when joined, define a plugged state, each connector has a front and rear oreintation and comprises: (a) an inner housing containing at least one fiber, the inner housing having a latch and a hook, the inner housings of the two complementary connectors being hermaphroditic such that, when the two complementary connectors are in the mated state, the latch of one inner housing engages the hook of the other inner housing, thereby optically coupling the fibers contained therein; and (b) an outer housing containing at least a portion of the inner housing, the inner housing being slidable therein.

Abstract: The object of the present invention is to provide an electrical connector which makes it possible for the contacts to electrically contact each other with a high contact pressure even when the contacts are made smaller and shorter. Contacts 40 and 80 which electrically contact each other are respectively secured in housings of a plug connector 20 and a cap connector 60, with the contacts being positioned in two rows in each connector. When the plug connector 20 and cap connector 60 are connected, first and second spring members 42 and 44 of the contacts 40 are clamped between wall surfaces 38a and 38b of the housing 30 and the contact sections 82 of the contacts 80, so that the contacts 40 and 80 are springably pressed strongly against each other.

Abstract: An electrical connector for terminating flat cable of the type having a plurality of signal and ground conductors in parallel alignment comprises a housing which holds a plurality of signal contacts and a ground bus. Each of the signal contacts has a signal conductor termination slot configured for insulation displacement termination of a respective said signal conductor. The ground bus has a plurality of ground conductor termination slots each configured for insulation displacement termination of a respective said ground conductor, and at least one bypass slot configured to permit at least one of said signal conductors to pass through said ground bus without termination thereto. The signal conductor termination slots, the ground conductor termination slots and the at least one bypass slot are arranged such that the plurality of signal and ground conductors reside in a common plane in the connector after termination thereto.

Abstract: A touch screen includes a transmitter capable of delivering an acoustic signal to the touch screen and a receiver adapted to detect acoustic signals on the touch screen and deliver a first signal representative of the detected acoustic signals. An automatic gain control amplifier has an input, output, and control terminal, and is adapted to receive the first signal on the input terminal and deliver an amplified version of the first signal on the output terminal. The control terminal is adapted to receive a control signal that varies the gain of the amplifier. An analog to digital converter is adapted to receive the amplified first signal and deliver a digital representation thereof. A first circuit is adapted to receive one of the amplified first signal and the digital signal, determine the difference between the received signal and a preselected value, and deliver a control signal to the control input of the amplifier. The control signal has a magnitude responsive to the determined difference.

Abstract: The present invention relates to a planar wave guide structure having a grating element fabricated thereon as well as a focusing element therein. The lens element of the present disclosure is preferably a void, to include air, a vacuum or other material which has an index of refraction less than an index of refraction of the core layer of the planar wave guide in which the lens element is disposed. The lens element is preferably fabricated by laser micromachining or other techniques described herein. The grating at the far end of the planar wave guide functions to separate wavelengths in the demultiplexing embodiment of the present disclosure, and as a wavelength integrator in the multiplexing embodiment of the disclosure of the present invention.

Abstract: The invention is directed to a crimp plug having a front portion, a center portion, and a securing portion. A conductor receiving cavity extends from the front e into the center portion. A stop shoulder within the center portion provides transition from the conductor receiving cavity to a plurality of conductor receiving passageway extending to a rear end. Each conductor receiving passageway serves to properly position the conductors while the stop shoulder serves to control the insertion length. A securing portion extends from the center portion and provides for securing of the cable.

Abstract: The invention is directed to a solderable aluminum alloy having an aluminum alloy which is formable into a substrate. The aluminum alloy has 0.05-4.5% by weight of tin added to the aluminum alloy to be formed into the substrate. The invention is also directed to a process for preparing a solderable aluminum substrate. The process includes preparing an aluminum slug with 0.05-4.5% of tin added to the aluminum slug; then rolling the aluminum slug to the desired thickness for the substrate; finally forming the rolled slug into the final shaped of the substrate.

Abstract: An electrical connector (1) comprising, an insulative housing (2), conductive contacts (4, 5) within an interior of the housing (2), insulative wiping surfaces (61) on a mating end (12) of the housing (2), and conductive surface areas (60) on the contacts (4, 5) being rearward of the wiping surfaces (61) and offset laterally of the wiping surfaces (61) to engage unwiped surface areas of mating contacts (4, 5) of another, mating connector (1).

Abstract: An electrical cable assembly 1 comprising: a housing 2, electrical contacts 3 in the housing 2 connected to a circuit board 4, multiple conductors 5 of an electrical cable 6 connected to the circuit board 4, signal conditioning circuitry 7 on the circuit board 4, the circuitry 7 being interposed between the electrical contacts 3 and the conductors 5, and an insulating holder 8 mounted on the circuit board 4, the contacts 3 extending on the holder 8, and the holder 8 being mounted in a cavity in the housing 2.