Patent application number | Description | Published |
20090160728 | UNCORRELATED ANTENNAS FORMED OF ALIGNED CARBON NANOTUBES - An uncorrelated RF antenna system ( | 06-25-2009 |
20110267253 | WIDEBAND AND MULTIBAND EXTERNAL ANTENNA FOR PORTABLE TRANSMITTERS - A communication device is presented that has an antenna structure with a relatively short length and covers multiple resonances including the UHF and the GPS bands. The antenna structure has a conductive base to which a whip antenna is connected through a helical radiating element. A cylindrical sheath capacitively connected to the helical element provides distributed impedance matching for the antenna structure. A monopole or another helical element provides higher resonance than that of the whip antenna or connected helical element. If the higher resonance is provided by a monopole, the monopole is disposed radially adjacent to the helical element and is capacitively connected with the helical element through an opening in the sheath. If the higher resonance is provided by a helical element, the helical element is capacitively or galvanically connected to the end of the whip antenna. | 11-03-2011 |
20120139810 | MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) ANTENNA SYSTEM - An antenna system includes a multi-port antenna with an active feeding network coupled thereto. The active feeding network applies complex weights to signals received from and transmitted to each port of the multi-port antenna. The complex weights are applied according to eigenvectors corresponding to a Hermitian matrix representation of the multi-port antenna. The Hermitian matrix may be base on such multi-port antenna parameters such as power dissipation, power radiation, real-power flow, volumetric storage of electromagnetic energy, and/or volumetric dissipation of electromagnetic energy. The multi-port antenna yields orthogonal electromagnetic fields in volumes or surfaces of interest in response to the active feeding network excitation. | 06-07-2012 |
20130135158 | UNINTERRUPTED BEZEL ANTENNA - A bezel forms a continuous, uninterrupted outer perimeter around the outside of a handheld radio device. The bezel is made of an electrically conductive material and is used as an antenna element. The bezel can be operated in either a common excitation mode or a differential excitation mode, depending on whether a user is presently holding the device, and making contact with the bezel. | 05-30-2013 |
20130307735 | MULTI-BAND SUBSCRIBER ANTENNA FOR PORTABLE TWO-WAY RADIOS - An antenna ( | 11-21-2013 |
20140187281 | METHOD AND APPARATUS FOR UPLINK POWER CONTROL IN A WIRELESS COMMUNICATION SYSTEM - A method, mobile station, and user-based communication system are provided that determine that a mobile station intends to transmit over an uplink, determine whether the mobile station is being operated in a body-worn position, determine an uplink transmit power scale factor, and when the mobile station is being operated in a body-worn position, apply the uplink transmit power scale factor to an uplink transmit power to produce a scaled uplink transmit power. In one embodiment, the user-based communication system includes the mobile station and an audio accessory and determines whether the mobile station is being operated in a body-worn position based on a determination of whether the audio accessory is actively engaged. | 07-03-2014 |
20140274189 | REDUCED-POWER TRANSMITTING FROM A COMMUNICATIONS DEVICE - Aspects of the present disclosure teach decreasing, in a time-averaged regime, the amount of RF energy emitted by a communications device. Generally speaking, the network tells the communications device what power level it should transmit at. If, however, the device determines that it would exceed an emission standard by transmitting at the specified power level for as long as it needs to in order to carry out its transmission duties, then the device can instead decide to transmit at a lower power level. Alternatively (or in combination), the device can, instead of transmitting all the time while it has data to send, only transmit intermittently. In either case, the emitted electromagnetic energy, as averaged over a period of time, is reduced below the maximum allowed by the standard. Later, if possible and necessary, the device can again transmit at a higher power level or more frequently. | 09-18-2014 |
20150016554 | CONTEXT AWARE MULTIPLE-INPUT AND MULTIPLE-OUTPUT ANTENNA SYSTEMS AND METHODS - A method, a system, and a server provide context aware multiple-input-multiple-output MIMO antenna systems and methods. Specifically, the systems and methods provide, in a multiple MIMO antenna or node system, techniques of antenna/beam selection, calibration, and periodic refresh, based on environmental and mission context. The systems and methods can define a context vector as built by cooperative use of the nodes on the backhaul to direct antennas for the best user experience as well as mechanisms using the context vector in a 3D employment to point the antennas in a cooperative basis therebetween. The systems and methods utilize sensors in the nodes to provide tailored context sensing versus motion sensing, in conjunction with BER (Bit Error Rate) measurements on test signals to position an antenna beam from a selection of several “independent” antenna subsystems operating within a single node, as well as, that of its optically connected neighbor. | 01-15-2015 |
20150029059 | SYSTEM AND METHOD FOR SHORT UHF ANTENNA WITH FLOATING TRANSMISSION LINE - A short, efficient antenna utilizing a floating coax transmission line over ground or overlapping wire feed structure for reduced antenna size for use in handheld radios. An asymmetric transmission line radiator having a length (L | 01-29-2015 |
Patent application number | Description | Published |
20120218556 | OPTICAL CANTILEVER BASED ANALYTE DETECTION - An apparatus for detecting a presence of one or more analytes in a sample. A plurality of optical cantilevered waveguides ( | 08-30-2012 |
20120218559 | OPTICAL CANTILEVER BASED ANALYTE DETECTION - An apparatus for detecting a presence of one or more analytes in a sample. The apparatus comprises a cantilever ( | 08-30-2012 |
20130205455 | SYSTEM AND METHOD OF PERFORMING ATOMIC FORCE MEASUREMENTS - A system for performing atomic force measurements including: a sensor including: a beam having a first side and a second side, the beam including a tip positioned on a surface of the first side for interacting with a sample; and a grating structure positioned adjacent the second side of the beam, the grating structure including an interrogating grating coupler configured to direct light towards the beam; a light source optically coupled to an input of the sensor for inputting light; and an analyser coupled to an output of the sensor; wherein the beam and the interrogating grating coupler form a resonant cavity, a movement of the beam modulates the light source and the analyser determines a deflection of the beam according to the modulated light. | 08-08-2013 |
20140139843 | OPTICAL CANTILEVER BASED ANALYTE DETECTION - An apparatus for detecting a deflection of a beam, the apparatus comprising a beam having a first side and a second side; and a grating structure positioned adjacent the second side of the beam, the grating structure including an interrogating grating coupler configured to direct light towards the beam; wherein the beam and the interrogating grating coupler form a resonant cavity, and light input to the resonant cavity is modulated according to the deflection of the beam. | 05-22-2014 |
20140368829 | OPTICAL CANTILEVER BASED ANALYSIS - An optical sensor including a MEMS structure, and a grating coupled resonating structure positioned adjacent to the MEMS structure, the grating coupled resonating structure comprising an interrogating grating coupler configured to direct light towards the MEMS structure. The interrogating grating coupler is two dimensional, and the interrogating grating coupler and the MEMS structure form an optical resonant cavity. | 12-18-2014 |