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| Number | Title | Issue Date |
| 4463323 | Woven low impedance electrical transmission cable and method A woven electrical transmission cable A is illustrated which includes a plurality of warp elements (12, 12, 14) interwoven with a weft element (16). A number of the warp elements are ground conductors (10) and a number are signal conductors (12). The grou... | 07/31/1984 |
| 4441088 | Stripline cable with reduced crosstalk A transmission line having substantially reduced far-end forward wave crosstalk is characterized by a single layer of dielectric material having a thickness chosen to provide a forward wave coupling constant KF substantially equal to zero. The ... | 04/03/1984 |
| 4382236 | Strip line cable using a porous, crystalline polymer dielectric tape A new strip line cable is provided comprising a dielectric in tape form made of a porous, crystalline polymer and one or more pairs of electrical conductors, each pair of conductors having one conductor located on one side of said tape and the other condu... | 05/03/1983 |
| 4353040 | Multi-layer module with constant characteristic impedance Disclosed is a multi-layer module structure having a constant characteristic impedance. In each conductor line plane, two signal lines are arranged between a ground and a voltage supply line. This line sequence: ground/signal/signal/voltage supply line, i... | 10/05/1982 |
| 4347487 | High frequency attenuation cable A high frequency attenuation cable which includes: a conductor; a high frequency absorption medium surrounding the conductor for attenuating high frequency energy through the cable; dielectric surrounding the absorption medium; electrical shielding surrou... | 08/31/1982 |
| 4327334 | Multi-channel rotary joint for electromagnetic detection equipment A multi-channel rotary joint, designed to couple a stationary and a rotary component of a radar system to each other, comprises a main channel centered on the axis of rotation and a plurality of axially spaced ancillary channels coaxially surrounding the ... | 04/27/1982 |
| 4310811 | Reworkable multi-layer printed circuit board A rework layer for a multi-layer printed circuit board comprised of a reference layer and a wire network containing a plurality of conductors tailored to match the impedance characteristics existing between the internal layers of the printed circuit board... | 01/12/1982 |
| 4281299 | Signal isolator A signal isolator has an acoustic transmitting medium with a first pair of acoustic transducers thereon for transmitting an input signal through the medium at a first frequency. A first transmitting and receiving circuit is used in combination with the fi... | 07/28/1981 |
| 4136319 | Filtering device for high-voltage power lines used as high-frequency transmission media Telecommunications are conveyed between sub-stations of a high-voltage electricity distribution network by high-frequency carriers using the power lines as transmission media. The filtering device attenuates high frequencies spilling over from one line se... | 01/23/1979 |
| 4110710 | Microwave bank branching arrangements A microwave band branching arrangement for successively coupling frequency sub-bands of a broad frequency band of energy has a coupler for coupling the highest sub-band of frequencies at one end of the arrangement and a series of successive couplers which... | 08/29/1978 |
| 4096458 | High frequency transmission cable High frequency electrical cable is provided in accordance with the teachings of the instant invention wherein a plurality of conductors for transmitting information are contained in a common sheathing. Each of the plurality of conductors takes the form of... | 06/20/1978 |
| 4077022 | Well logging method and means using an armored multiconductor coaxial cable A logging system employs an armored multiconductor coaxial cable, including an inner conductor, a shield and conductive outer armor and in which the shield, encompassing the inner conductor, comprises a plurality of conductors which includes groups of con... | 02/28/1978 |
| 4044318 | Ganged radio frequency filter A three channel electronically tunable filter arrangement for selecting radio frequency signals to be processed in a monopulse receiver is disclosed. Each channel of the disclosed filter arrangement includes an yttrium-iron-garnet (YIG) filter disposed in... | 08/23/1977 |
| 4031487 | Reciprocal microwave junction device The present invention relates to reciprocal junction devices between independent coaxial lines and concentric coaxial lines. As many elementary junctions as there are independent lines, less one, are required. Each elementary junction involves a two-wire ... | 06/21/1977 |
| 4017845 | Circuitry for simultaneous transmission of signals and power A transmission line having a pair of wires enclosed in a shield is used to simultaneously transmit high frequency signals and low frequency power between distant locations. At the sending end of the line a high frequency source is connected between the fi... | 04/12/1977 |
| 3983517 | Surface acoustic wave multi-channel filter A surface acoustic wave filter including a relatively broad band input transducer that launches acoustic energy along a first path, at least one frequency-selective periodic grating filter disposed in the first path and adapted to reflect the energy incid... | 09/28/1976 |
| 3975700 | Radio-frequency signaling cable for inductive-carrier communications systems A radio-frequency signaling cable comprising a center conductor, dielectric means disposed about the center conductor, and a conductive sheath disposed about the conductor and dielectric means. An inductive signaling conductor is spaced-apart from the she... | 08/17/1976 |
| 3943466 | Compander for TDM telecommunication system Amplitude samples of voice signals to be transmitted by pulse-code modulation are compared with a quasi-exponential reference voltage generated during each sampling interval while a binary counter receives a train of isochronous clock pulses, the reading ... | 03/09/1976 |
| 3939445 | Ball universal joint for wave guides A ball universal joint for wave guides comprising a package of plates, each of which having therein a rectangular cross-section hole a quarter-wave length, the plates being compressed on one another by interposing balls separating and restraining the plat... | 02/17/1976 |
