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"There is practically no chance communications space satellites will be used to provide better telephone, telegraph, television, or radio service inside the United States."
T. Craven, FCC Commissioner ; 1961
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| Number | Title | Issue Date |
| 7808346 | Rotary joint having air bearings for contact free mounting A high frequency (HF) rotary joint including a rotor and a stator is disclosed. The rotor is connected to the stator by a high frequency connection via a λ/4 line. The rotor, moreover, is mounted in the stator utilizing at least one radial aircushion bearing and at... | 10/05/2010 |
| 7782159 | Large diameter RF rotary coupler used with a passive RF sensor A rotary coupler comprises a stator 1 having a first face 3a and a rotor 2 having a second face 4a, the first and second faces 3a, 4a being spaced apart from and facing each other. A first electri... | 08/24/2010 |
| 7515021 | Split-ring coupler incorporating dual resonant sensors A split ring coupler comprising a stator ring having at least one split in it such that the stator has at least a first and a second end and a rotor ring having at least one split in it such that the rotor ring has at least a first and a second end, said rotor ring ... | 04/07/2009 |
| 7339540 | Sparse and virtual array processing for rolling axle array system A radar signal processing system comprises a processor that determines a respective position of each of a plurality of radiating elements included in a radar array. Each radiating element has a respectively different motion vector from every other one of the plurali... | 03/04/2008 |
| 7254371 | Multi-port multi-band RF switch Systems and methods are disclosed for sharing a network with two switching devices forming a single pole double throw (SPDT) switch. Two SPDT switches can also be used in a double pole double throw (DPDT) configuration that shares a network, thus reducing component ... | 08/07/2007 |
| 7250804 | Series/shunt switch and method of control A switch includes at least two signal ports in series with a series FET connected therebetween, and a shunt path having an FET, whereby an input bias is applied to a gate on the series FET and to a drain on the shunt FET. In one embodiment, the switch includes a con... | 07/31/2007 |
| 7239267 | Microwave sealing for radar level gauges A radar level gauge system is disclosed, having a transmitter for transmitting measuring signals towards the surface of the filling material, a receiver for receiving echo signals from said surface and a fastening structure adapted to secure said transmitter and rec... | 07/03/2007 |
| 7221236 | Waveguide communication system A waveguide comprises a longitudinal first conductor (110) located in an inner space of a box-shaped longitudinal shield conductor which is provided with a slot (122) defining a sliding support for a substantially plate-shaped coupler (300). The... | 05/22/2007 |
| 7215216 | Apparatus and methods for capacitively-coupled device input/output Apparatus and methods for capacitively coupled device input/output are disclosed. In one embodiment, a connector module includes a first member having at least one first conductive lead disposed therein. A dielectric portion is coupled to an end portion of the at le... | 05/08/2007 |
| 7212077 | Device for transmitting signals between movable units A device for signal transmission between units that are movable along given tracks comprises at least one transmitter for generating electrical signals, at least one conductor arrangement for conducting the electrical signals along a track of movement, and at least ... | 05/01/2007 |
| 7212101 | Device for broadband electrical signal and/or energy transmission using a transmission system including couplers An arrangement for broadband signal and/or energy transmission, between at least two units is disclosed. Said units may be displaced relative to each other along a track. Said arrangement comprises a first unit, which has a symmetrical open circuit arrangement with ... | 05/01/2007 |
| 7199764 | Maintenance platform for a rolling radar array A maintenance platform for use in a rolling radar array system has a base capable of accommodating at least one person. The base is movably coupled to a support frame, along which the base can move along the longitudinal axis of the support frame rails. The height o... | 04/03/2007 |
| 7183989 | Transportable rolling radar platform and system A transportable platform for a rolling radar array system has a base whereupon a track for an array wheel is provided. A segment of the track can be folded for transportation and deployed when the rolling radar array system is to be in an operational mode. The trans... | 02/27/2007 |
| 7180218 | Compression journal A compression journal for transfer of microwave signals across a rotating interface of a rotary joint comprises a silver impregnated graphite split ring stator which surrounds and is in contact with a coin silver sleeve of a shaft rotor when a rotor assembly is posi... | 02/20/2007 |
| 7172428 | Electronic device having a pivotable electrical connector, and electrical connector assembly An electronic device includes a hollow pivot member interconnecting a main housing and a connector housing of an electrical connector such that the pivot member is rotatable relative to the electrical connector about a first axis and relative to main housing about a... | 02/06/2007 |
| 7165276 | Medical assist device A medical assist device relocates patients from a first support such as a bed to a second support such as a chair or wheelchair. Upon location of the assist device to a position adjacent such first support, the patient may stand on a rotatable platform of the assist... | 01/23/2007 |
| 7148773 | Device for carrying out the non-contact rotational transmission of high-frequency signals An array transmits a wide-band electric signal between at least two components disposed for rotation relative to each other. The components are provided with coupling surfaces that are maintained at a largely constant distance from each other via the rotary movement... | 12/12/2006 |
| 7142071 | Broadband high-frequency slip-ring system A velocity compensated contacting ring system includes a first dielectric material, a plurality of concentric spaced conductive rings and a first ground plane. The first dielectric material includes a first side and a second side. The plurality of concentric spaced ... | 11/28/2006 |
| 7129901 | Electromagnetic gravity drive for rolling axle array system An azimuth drive for a radar array comprises an electromagnetic track mounted to a wheel on which the radar array is mounted; and a magnetized carriage assembly operatively coupled to the electromagnetic track and capable of moving along the track in a tangential di... | 10/31/2006 |
| 7109819 | Device for wideband electrical connection of two units that are movable relative to each other A device for signal transmission between units which are movable relative to each other along predetermined paths comprises at least one transmitter associated with a first unit for generating electrical signals, at least one conductor arrangement associated with th... | 09/19/2006 |
| 7091804 | Rotary joint The present invention aims at providing a rotary joint which is of a thin type and has broad band characteristics and which is low in loss and is excellent in power resistance as well. In order to attain the object, the rotary joint includes: first and second polari... | 08/15/2006 |
| 6985046 | Device for the transmission of electric signals between at least two units mobile relative to each other In a device for the transmission of electrical signals between at least two units mobile relative to each other, such as a slip ring or a sliding path, a shielding surface of an electrically conductive material is provided to reduce interference radiation and interf... | 01/10/2006 |
| 6959732 | Hard coating on a stator for improving the durability of a solenoid actuator At least one solenoid actuator and a valve are at least partially positioned within a body of an hydraulic device. The solenoid actuator includes at least one solenoid coil mounted to a stator that defines a guide bore in which a push pin moves between a first posit... | 11/01/2005 |
| 6956445 | Broadband high-frequency slip ring system A contacting probe system includes at least one flat brush contact and a printed circuit board (PCB). The PCB includes a feedline for coupling the flat brush contact to an external interface. The flat brush contact is located on a first side of the PCB and the PCB i... | 10/18/2005 |
| 6956450 | Device for non-contact transmission of electrical signals and/or energy A device for non-contact transmission of electrical signals or energy between two parts mobile relative to each other comprising electromagnetic near-field coupler elements on the two parts, wherein the coupler elements on at least one part form a cascade circuit te... | 10/18/2005 |
| 6950633 | Rotary non-contact connector and non-rotary non-contact connector A rotary non-contact connector and a non-rotary non-contact connector enable data transmission in a non-contact mode by radio transmitters-receivers by combining rotary transformers or stationary transformers and radio transmitters-receivers, and providing power sys... | 09/27/2005 |
| 6864759 | Rotary signal coupler A rotary signal coupler for providing signal coupling to a Surface Acoustic Wave (SAW) device (4) mounted on a shaft (5) includes a first electrically conducting loop (21) mounted on a disc (23) and connected to the SAW device (4),... | 03/08/2005 |
| 6850128 | Electromagnetic coupling An orthogonal electrical coupling relies on electromagnetic coupling for the inner connection, as opposed to direct contact between conductors. A conductor on one of the lines is connected to a ground plane which is adjacent to a resonant slot. Microwave energy is c... | 02/01/2005 |
| 6838958 | Rotary signal coupler The present invention relates to a rotary signal coupler, that is to say a device for providing signal coupling between two components which are rotatable relative to each other. A coupler is provided comprising a first substantially circular track secured to a firs... | 01/04/2005 |
| 6720850 | Variable attenuator A resonance type SPST switch is formed by connecting an inductive element in series with the drain of an FET, and then by connecting a capacitive element in parallel with the series connection of the FET and the inductive element. A constant-voltage source for feedi... | 04/13/2004 |
| 6501351 | Radioelectric transmission system provided with a rotating part and a part fixed to an antenna extending over two circles The installation comprises a part (1) rotating about a fixed part (2) and provided with measurement instruments (3) with antennas (5) aimed radially towards a fixed antenna (6). This antenna comprises two pairs of arms (9, 10, 14, 15) in two concentric ci... | 12/31/2002 |
| 6437656 | Broadband high data rate analog and digital communication link A conductive slip ring system functions to transfer information electrically between a moving frame and a stationary frame. The conductive slip ring system includes a conductive transmission line and a conductive probe. The conductive transmission line is... | 08/20/2002 |
| 6404298 | Rotatable waveguide twist In a waveguide twist having a torsion element with at least three individual parts situated adjacent to each other and rotatable around an axis of the torsion element, in which each of the individual parts has a central passage hole with a cross-section c... | 06/11/2002 |
| 6188300 | Satellite dish antenna stabilizer platform A stabilizer platform mounted to a vessel for positioning a satellite dish antenna in the azimuth and elevation directions. An azimuth motor and an elevation motor are mounted in a formed hollow interior of a housing. Azimuth motor control cables and elev... | 02/13/2001 |
| 6114860 | Rotary coupled transmission line cell A rotary coupled transmission line cell is disclosed which generates standard electromagnetic waves needed for measuring the electromagnetic wave susceptibility (EMS), for measuring the electromagnetic wave interference (EMI) and for correcting the probe.... | 09/05/2000 |
| 6064288 | Coaxial rotary coupler A coaxial rotary coupler assembly which includes a coaxial transmission region for transmitting RF energy between a stationary and rotating section of the rotary coupler. Compact stubs are associated with the input and output connections to associated inp... | 05/16/2000 |
| 6018279 | Radio frequency coupler A radio frequency (RF) coupler transfers RF power between a first circuit on a rotary shaft and a second circuit relative to which the shaft can rotate. The coupler comprises a first RF transmission line arranged to rotate with the rotary shaft about the ... | 01/25/2000 |
| 5892411 | Data transmission device A data transmission device has a first module and a second module moveable relative to one another. One of the modules functions as a sending module and the other functions as a receiving module for transmitting data between first and second modules. One ... | 04/06/1999 |
| 5877660 | Phase shifting device with rotatable cylindrical case having driver means on the end walls Input is applied to a two-partition circuit that substantially equally distributes input power into two partitions having a phase difference of 90°, and the thus-distributed output is applied to a first driver that generates circularly polarized wave. Th... | 03/02/1999 |
| 5805115 | Rotary microwave antenna system A rotary microwave antenna system suitable for satellite or cellular microwave radio telecommunications features an integrated, low-profile, rotary microwave joint, slip ring and antenna assembly. The rotary antenna system includes a stator (i.e., station... | 09/08/1998 |
