Patent application number | Description | Published |
20080258991 | Multimode Antenna Structure - A multimode antenna structure is provided for transmitting and receiving electromagnetic signals in a communications device. The communications device includes circuitry for processing signals communicated to and from the antenna structure. The antenna structure includes a plurality of antenna ports operatively coupled to the circuitry and a plurality of antenna elements, each operatively coupled to a different one of the antenna ports. The antenna structure also includes one or more connecting elements electrically connecting the antenna elements such that electrical currents on one antenna element flow to a connected neighboring antenna element and generally bypass the antenna port coupled to the neighboring antenna element, and the electrical currents flowing through the one antenna element and the neighboring antenna element are generally equal in magnitude, such that an antenna mode excited by one antenna port is generally electrically isolated from a mode excited by another antenna port at a given desired signal frequency range and the antenna elements generate diverse antenna patterns. | 10-23-2008 |
20100265146 | MULTIMODE ANTENNA STRUCTURE - A multimode antenna structure is provided for transmitting and receiving electromagnetic signals in a communications device. The communications device includes circuitry for processing signals communicated to and from the antenna structure. The antenna structure includes a plurality of antenna ports for coupling to the circuitry; a plurality of antenna elements, each operatively coupled to a different one of the antenna ports; and a plurality of connecting elements. The connecting elements each electrically connect neighboring antenna elements such that the antenna elements and the connecting elements are arranged about the periphery of the antenna structure and form a single radiating structure. Electrical currents on one antenna element flow to connected neighboring antenna elements and generally bypass the antenna ports coupled to the neighboring antenna elements such that an antenna mode excited by one antenna port is generally electrically isolated from a mode excited by another antenna port at a given desired signal frequency range, and the antenna structure generates diverse antenna patterns. | 10-21-2010 |
20110021139 | METHODS FOR REDUCING NEAR-FIELD RADIATION AND SPECIFIC ABSORPTION RATE (SAR) VALUES IN COMMUNICATIONS DEVICES - A method is provided for reducing near-field radiation and specific absorption rate (SAR) values in a communications device. The communications device includes a multimode antenna structure transmitting and receiving electromagnetic signals and circuitry for processing signals communicated to and from the antenna structure. The antenna structure includes: a plurality of antenna ports operatively coupled to the circuitry; a plurality of antenna elements, each operatively coupled to a different one of the antenna ports; and one or more connecting elements electrically connecting the antenna elements at a location on each antenna element that is spaced apart from an antenna port coupled thereto to form a single radiating structure and such that electrical currents on one antenna element flow to a connected neighboring antenna element and generally bypass the antenna port coupled to the neighboring antenna element, the electrical currents flowing through the one antenna element and the neighboring antenna element being generally equal in magnitude, such that an antenna mode excited by one antenna port is generally electrically isolated from a mode excited by another antenna port at a given desired signal frequency range and the antenna structure generates diverse antenna patterns. The method includes adjusting the relative phase between signals fed to neighboring antenna ports of the antenna structure such that a signal fed to the one antenna port has a different phase than a signal fed to the neighboring antenna port to provide antenna pattern control and to increase gain in a selected direction toward a receive point. The method features using a transmit power lower than the transmit power used in a non-pattern control operation of the antenna structure such that the communications device obtains generally equivalent wireless link performance with the receive point using reduced transmit power compared to the non-pattern control operation, thereby reducing the specific absorption rate. | 01-27-2011 |
20130141304 | THREE-FEED LOW-PROFILE ANTENNA STRUCTURE OFFERING HIGH PORT-TO-PORT ISOLATION AND MULTIBAND OPERATION - A three-feed, low-profile antenna offers high port-to-port isolation and multiband operation. Applications for the antenna include, but are not limited to, USB dongle, netbook, notebook, tablet, laptop, and set-top box applications requiring 3-feed MIMO or diversity protocols. | 06-06-2013 |
20130157592 | Methods for Reducing Near-Field Radiation and Specific Absorption Rate (SAR) Values in Communications Devices - A method is provided for reducing near-field radiation and specific absorption rate values in a communications device that includes a multimode antenna structure transmitting and receiving electromagnetic signals and circuitry for processing signals communicated to and from the antenna structure. The method includes adjusting the relative phase between signals fed to neighboring antenna ports of the antenna structure such that a signal fed to the one antenna port has a different phase than a signal fed to the neighboring antenna port to provide antenna pattern control and to increase gain in a selected direction toward a receive point. The method features using a transmit power lower than the transmit power used in a non-pattern control operation of the antenna structure such that the communications device obtains generally equivalent wireless link performance with the receive point using reduced transmit power compared to the non-pattern control operation, thereby reducing the specific absorption rate. | 06-20-2013 |
20130229316 | METHOD AND APPARATUS FOR CONTROLLING AN ANTENNA - A system that incorporates the subject disclosure may include, for example, a method for coupling a primary antenna to an auxiliary antenna portion with a current-controlled switch. The method further includes generating a unidirectional direct current or a first bias voltage having a first polarity to cause the current-controlled switch to substantially form a conduction channel between the primary antenna and the auxiliary antenna portion. While the conduction channel is present, a first resonance frequency range of the primary antenna is frequency shifted to a second resonance frequency range. The method can also include removing the unidirectional direct current or generating a second bias voltage having a second polarity to cause the current-controlled switch to form an open circuit between the primary antenna and the auxiliary antenna portion. While the open circuit is present, the first resonance frequency range of the primary antenna is restored. Other embodiments are disclosed. | 09-05-2013 |
20140206298 | METHODS FOR REDUCING NEAR-FIELD RADIATION AND SPECIFIC ABSORPTION RATE (SAR) VALUES IN COMMUNICATIONS DEVICES - A method is provided for reducing near-field radiation and specific absorption rate (SAR) values in a communications device. The communications device includes a multimode antenna structure transmitting and receiving electromagnetic signals and circuitry for processing signals communicated to and from the antenna structure. The antenna structure includes: a plurality of antenna ports operatively coupled to the circuitry; a plurality of antenna elements, each operatively coupled to a different one of the antenna ports; and one or more connecting elements electrically connecting the antenna elements at a location on each antenna element that is spaced apart from an antenna port coupled thereto to form a single radiating structure and such that electrical currents on one antenna element flow to a connected neighboring antenna element and generally bypass the antenna port coupled to the neighboring antenna element, the electrical currents flowing through the one antenna element and the neighboring antenna element being generally equal in magnitude, such that an antenna mode excited by one antenna port is generally electrically isolated from a mode excited by another antenna port at a given desired signal frequency range and the antenna structure generates diverse antenna patterns. The method includes adjusting the relative phase between signals fed to neighboring antenna ports of the antenna structure such that a signal fed to the one antenna port has a different phase than a signal fed to the neighboring antenna port to provide antenna pattern control and to increase gain in a selected direction toward a receive point. The method features using a transmit power lower than the transmit power used in a non-pattern control operation of the antenna structure such that the communications device obtains generally equivalent wireless link performance with the receive point using reduced transmit power compared to the non-pattern control operation, thereby reducing the specific absorption rate. | 07-24-2014 |
20140340269 | MULTIMODE ANTENNA STRUCTURE - A multimode antenna structure is provided for transmitting and receiving electromagnetic signals in a communication device. The communication device includes circuitry for processing signals communicated to and from the antenna structure. The antenna structure includes a plurality of antenna ports for coupling to the circuitry; a plurality of antenna elements, each operatively coupled to a different one of the antenna ports; and a plurality of connecting elements. The connecting elements each electrically connect neighboring antenna elements such that the antenna elements and the connecting elements are arranged about the periphery of the antenna structure and form a single radiating structure. Electrical currents on one antenna element flow to connected neighboring antenna elements and generally bypass the antenna ports coupled to the neighboring antenna elements such that an antenna mode excited by one antenna port is generally electrically isolated from a mode excited by another antenna port at a given desired signal frequency range, and the antenna structure generates diverse antenna patterns. | 11-20-2014 |
20150116153 | ANTENNA STRUCTURES AND METHODS THEREOF FOR SELECTING ANTENNA CONFIGURATIONS - A system incorporating the subject disclosure may include, for example, a method including determining, by a communication device comprising a processor, a usage state of the communication device. The communication device includes selectable antennas, and the usage state includes an orientation of the communication device. The method also includes selecting a set of antennas according to the usage state, and obtaining an antenna gain pattern for an antenna in the selected set of antennas. The method further includes evaluating an expected performance of an antenna configuration corresponding to the selected set of antennas, relative to a performance of an existing antenna configuration. The method also includes initiating usage of the antenna configuration in accordance with improved performance relative to the existing antenna configuration. The antenna configuration comprises a polarization configuration, and the selected set of antennas comprises elements in different planes. Other embodiments are disclosed. | 04-30-2015 |
20150116159 | ANTENNA STRUCTURES AND METHODS - A communication device that incorporates the subject disclosure may include, for example, a communication device including a communication device including a conductive cover, a display fixably mounted to the conductive cover, a first antenna element, and a circuit. The display can include a conductive backing. The first antenna element can include a first slot in the conductive cover and a first gap separating the conductive cover and the conductive backing to form a first slot antenna for converting between first electromagnetic signals and first electrical signals. The circuit can be communicatively coupled to first edges of the first slot to define a first port. The circuit can perform operations including transmitting the first electronic signals into the first antenna element. Other embodiments are disclosed. | 04-30-2015 |
20150116161 | ANTENNA STRUCTURES AND METHODS THEREOF FOR DETERMINING A FREQUENCY OFFSET BASED ON A SIGNAL MAGNITUDE MEASUREMENT - A system that incorporates the subject disclosure may include, for example, a circuit for measuring from a first probe a first magnitude of radiated energy by an antenna, where the first probe is placed near the antenna, obtaining a second magnitude of a signal supplied to the antenna, comparing the first and the second magnitudes, detecting an offset in an operating frequency of the antenna based on a difference between the first and the second magnitudes, and adjusting the operating frequency of the antenna to mitigate the offset in the operating frequency of the antenna. Other embodiments are disclosed. | 04-30-2015 |
20150116162 | ANTENNA STRUCTURES AND METHODS THEREOF FOR DETERMINING A FREQUENCY OFFSET BASED ON A DIFFERENTIAL MAGNITUDE - A system that incorporates the subject disclosure may include, for example, a circuit for measuring from a first probe a first magnitude of radiated energy by an antenna, where the first probe serves as a first near field probe for measuring radiated energy from the antenna, measuring from a second probe a second magnitude of a transmit signal supplied to the antenna, where the second probe is placed at a location for measuring the transmit signal, comparing the first and the second magnitudes to generate a differential magnitude, and providing the differential magnitude to a controller for detecting an offset in an operating frequency of the antenna based on the differential magnitude, and for adjusting the operating frequency of the antenna to mitigate the offset. Other embodiments are disclosed. | 04-30-2015 |
20150116163 | ANTENNA STRUCTURES AND METHODS THEREOF - A system that incorporates the subject disclosure may include, for example, a circuit for determining a magnitude difference between a first signal supplied to an antenna and a second signal radiated by the antenna, determining a phase difference between the first signal supplied to the antenna and the second signal radiated by the antenna, measuring a change in reactance of an antenna, detecting an offset in an operating frequency of the antenna based on one of the magnitude difference, the phase difference, the change in reactance, or any combination thereof, and adjusting a resonant frequency of the antenna to mitigate the offset in the operating frequency of the antenna. Other embodiments are disclosed. | 04-30-2015 |
20150117502 | ANTENNA STRUCTURES AND METHODS - A communication device that incorporates the subject disclosure may include, for example, a conductive cover, an antenna structure, and a circuit. The antenna structure can comprise a first portion of the conductive cover having a first slot formed therein. The first portion can form a first antenna element for converting between first electromagnetic signals and first electrical signals. The first slot can define a shape of a trade dress design in the conductive cover. The circuit can be communicatively coupled to first edges of the first slot to define a first port. The circuit can perform operations comprising transmitting the first electronic signals into the first antenna element. Other embodiments are disclosed. | 04-30-2015 |
20150118973 | ANTENNA STRUCTURES AND METHODS THEREOF - A system that incorporates the subject disclosure may include, for example, a circuit for determining a magnitude difference between a first signal supplied to an antenna and a second signal radiated by the antenna, determining a phase difference between the first signal supplied to the antenna and the second signal radiated by the antenna, detecting an offset in an operating frequency of the antenna based on the magnitude difference and the phase difference, and adjusting the operating frequency of the antenna to mitigate the offset in the operating frequency of the antenna. Other embodiments are disclosed. | 04-30-2015 |
20150119045 | ANTENNA STRUCTURES AND METHODS THEREOF FOR CONFIGURING AN ANTENNA STRUCTURE OF A COMMUNICATION DEVICE IN TRANSIT - A method that incorporates the subject disclosure may include, for example, obtaining, by a first base station comprising a processor, information regarding a trajectory of a communication device. The method can also include determining a location of the communication device relative to a second base station. The method can also include transmitting a recommendation to the communication device regarding adjusting an antenna configuration of the communication device to facilitate data communication services with the second base while maintaining voice communications services with the first base station. Other embodiments are disclosed. | 04-30-2015 |
20150120189 | ANTENNA STRUCTURES AND METHODS THEREOF FOR DETERMINING LOCATIONS TO IMPROVE WIRELESS COMMUNICATIONS - A system that incorporates the subject disclosure may include, for example, an antenna structure of a base station including an antenna element for communicating with a communication device via radio frequency signals and a circuit coupled to the antenna element. The circuit detects a location of the communication device. The circuit determines from the location of the communication device a first set of coordinates corresponding to an alternate location where an improved quality of communications can be provided to the communication device, and transmits the first set of coordinates to the communication device. Other embodiments are disclosed. | 04-30-2015 |
20150162662 | METHOD AND APPARATUS FOR CONTROLLING AN ANTENNA - A system that incorporates the subject disclosure may include, for example, a method for coupling a primary antenna to an auxiliary antenna portion with a current-controlled switch. The method further includes generating a unidirectional direct current or a first bias voltage having a first polarity to cause the current-controlled switch to substantially form a conduction channel between the primary antenna and the auxiliary antenna portion. While the conduction channel is present, a first resonance frequency range of the primary antenna is frequency shifted to a second resonance frequency range. The method can also include removing the unidirectional direct current or generating a second bias voltage having a second polarity to cause the current-controlled switch to form an open circuit between the primary antenna and the auxiliary antenna portion. While the open circuit is present, the first resonance frequency range of the primary antenna is restored. Other embodiments are disclosed. | 06-11-2015 |
20150303590 | METHODS FOR REDUCING NEAR-FIELD RADIATION AND SPECIFIC ABSORPTION RATE (SAR) VALUES IN COMMUNICATIONS DEVICES - A method is provided introducing a phase difference between signals at antenna ports of an antenna such that a first signal at one of the antenna ports has a different phase than a second signal at another one of antenna ports to obtain an antenna pattern control. A reduced power is used that is lower than the power used in a non-pattern control operation of the antenna such that a wireless link performance criteria is met with equipment at a far-field point using the reduced power compared to the non-pattern control operation, thereby reducing a specific absorption rate. | 10-22-2015 |
20160043477 | MULTIMODE ANTENNA STRUCTURE - A multimode antenna structure is provided for transmitting and receiving electromagnetic signals in a communication device. The antenna structure includes a plurality of antenna ports for coupling to the circuitry; a plurality of antenna elements, each operatively coupled to a different one of the antenna ports; and a plurality of connecting elements. The connecting elements each electrically connect neighboring antenna elements such that the antenna elements and the connecting elements are arranged about the periphery of the antenna structure and form a single radiating structure. Electrical currents on one antenna element flow to connected neighboring antenna elements and generally bypass the antenna ports coupled to the neighboring antenna elements such that an antenna mode excited by one antenna port is generally electrically isolated from a mode excited by another antenna port at a given desired signal frequency range, and the antenna structure generates diverse antenna patterns. | 02-11-2016 |
Patent application number | Description | Published |
20100193483 | LASER CUTTING PROCESS FOR FORMING STENTS - Systems and methods for improving the cutting efficiency and cut profile of stent strut is provided. A means for altering the energy distribution of a laser beam is provided, along with various ways of controlling a laser to provide for improved strut configurations are provided. A method for improved cutting speeds using a combination of laser sources is also provided. | 08-05-2010 |
20100193484 | MULTIPLE BEAM LASER SYSTEM FOR FORMING STENTS - A system and method for precision cutting using multiple laser beams is described, The system and method includes a combination of optical components that split the output of a single laser into multiple beams, with the power, polarization status and spot size of each split beam being individually controllable, while providing a circularly polarized beam at the surface of a work piece to be cut by the laser beam. A system and method for tracking manufacture of individual stents is also provided. | 08-05-2010 |
20100193485 | METHODS AND SYSTEMS FOR LASER CUTTING AND PROCESSING TUBING TO MAKE MEDICAL DEVICES - Methods for making devices include providing a tubular member to be formed into a device, placing a removable sacrificial block material in the lumen of the tubular member and laser cutting the tubular member. A doping material can be added to the melted portion of the tubular member to promote the formation of brittle slag. A fixture can be used to hold a cut workpiece in order to ream sacrificial material from the surface of the workpiece. Pressurized gas can be supplied to the inner lumen of the tubular member to cause slag to form on the outside surface, rather than the inner surface, of the tubular member. A tubular member made from nickel-titanium alloy can be tightly adhered to a sacrificial sleeve utilizing the phase changes associated with nickel-titanium. A rotating mandrel can be placed within the lumen of the tubular member during laser cutting. A mandrel which includes an enlarged diameter section causes the workpiece to expand slightly within its elastic deformation range to dislodge islands from the workpiece. Such a mandrel could be formed from a tubular member which has a central lumen that can be used to deliver a pressurized medium to “blast” islands from the workpiece. | 08-05-2010 |
20110119287 | AUTOMATIC REUSE OF USER-SPECIFIED CONTENT IN QUERIES - A device and method for reusing user-specified content is provided. After generation of a query comprising parameters explicitly set by the user, the explicitly set parameters are stored in a parameter store. If a subsequent query is generated without any explicitly set parameters, the stored parameters are automatically applied to the subsequent query, and the modified query is then transmitted to an online service, such as an e-commerce site or search engine. User query preference history may be stored for use in modifying a subsequent theory. In addition, the user may navigate to specially designated content on a page, and when the content is in focus, the user may optionally copy the content for reuse in generating a further query or for publication. | 05-19-2011 |
20110134391 | WAVEFRONT PROPAGATION FROM ONE PLANE TO ANOTHER - The present invention provides methods, systems and software for scaling optical aberration measurements of optical systems. In one embodiment, the present invention provides a method of reconstructing optical tissues of an eye. The method comprises transmitting an image through the optical tissues of the eye. Aberration data from the transmitted image is measured across the optical tissues of the eye at a first plane. A conversion algorithm is applied to the data, converting it to corrective optical power data that can be used as a basis for constructing a treatment for the eye at a second plane. | 06-09-2011 |
20120120367 | WAVEFRONT PROPAGATION FROM ONE PLANE TO ANOTHER - The present invention provides methods, systems and software for scaling optical aberration measurements of optical systems. In one embodiment, the present invention provides a method of reconstructing optical tissues of an eye. The method comprises transmitting an image through the optical tissues of the eye. Aberration data from the transmitted image is measured across the optical tissues of the eye at a first plane. A conversion algorithm is applied to the data, converting it to corrective optical power data that can be used as a basis for constructing a treatment for the eye at a second plane. | 05-17-2012 |
20130301394 | CMUT ASSEMBLY WITH ACOUSTIC WINDOW - In some implementations, a capacitive micromachined ultrasonic transducer (CMUT) apparatus includes one or more CMUTs or CMUT arrays, an acoustic window, a coupling medium, and a packaging substrate. The acoustic window may have various configurations, such as for reducing acoustic reflectance or increasing mechanical properties. In some examples, at least one of the CMUTs, the acoustic window or the coupling medium may include a focusing capability for focusing acoustic energy to or from the CMUT. | 11-14-2013 |
20130313236 | MULTIPLE BEAM LASER SYSTEM FOR FORMING STENTS - A system and method for precision cutting using multiple laser beams is described, The system and method includes a combination of optical components that split the output of a single laser into multiple beams, with the power, polarization status and spot size of each split beam being individually controllable, while providing a circularly polarized beam at the surface of a work piece to be cut by the laser beam. A system and method for tracking manufacture of individual stents is also provided. | 11-28-2013 |
20130313237 | MULTIPLE BEAM LASER SYSTEM FOR FORMING STENTS - A system and method for precision cutting using multiple laser beams is described, The system and method includes a combination of optical components that split the output of a single laser into multiple beams, with the power, polarization status and spot size of each split beam being individually controllable, while providing a circularly polarized beam at the surface of a work piece to be cut by the laser beam. A system and method for tracking manufacture of individual stents is also provided. | 11-28-2013 |
20140176906 | SYSTEMS AND METHODS FOR BALANCING INFRARED ILLUMINATION IN EYE IMAGING - The field of the invention relates to systems and methods for eye imaging and, more particularly, for balancing illuminations in eye imaging. An asymmetric illumination method to compensate for the imbalance illumination caused by nose reflection is described. In one embodiment, a method for balancing illuminations in eye imaging comprises generating one or more eye images, using the images to detect the imbalance illuminations from the nasal sclera and temporal sclera with the selected region of interest. In another embodiment, a system for balancing illuminations in eye imaging uses the detected imbalance illumination ratio of nasal/temporal sclera as the signal for adjusting the brightness of the infrared LEDs for asymmetric illumination. | 06-26-2014 |
20140263219 | LASER OPTICS WITH LATERAL AND ANGULAR SHIFT COMPENSATION - A telecentric F-theta lens is added to the optical chain of a laser used to cut stent patterns into a stent tube to facilitate positioning and alignment of the laser beam and to compensate for lateral and angular shift of the beam spot. | 09-18-2014 |
20140263220 | LASER CUTTING PROCESS MONITORING AND CONTROL - A laser system including various optical components providing for beam alignment and process monitoring of a stent cutting process is described. The various aspects of the invention provide for monitoring of a beam of laser light reflected from the surface of a stent tube so as monitor the properties of the cutting beam, location of the beam, system cleanliness, optical defects in the system, and cutting efficiency of the laser. | 09-18-2014 |
20150028008 | LASER CUTTING PROCESS FOR FORMING STENTS - Systems and methods for improving the cutting efficiency and cut profile of stent strut is provided. A means for altering the energy distribution of a laser beam is provided, along with various ways of controlling a laser to provide for improved strut configurations are provided. A method for improved cutting speeds using a combination of laser sources is also provided. | 01-29-2015 |
20150042955 | SYSTEM AND METHOD FOR DETERMINING OCULAR SCATTERING - Improved systems and methods for determining ocular scattering are provided. These systems and methods can be used to quantify ocular scattering before and/or after a wide variety of different ophthalmic diagnostic procedures, and various surgical and non-surgical treatments. One embodiment provides a system and method for determining ocular scattering that uses two light detectors, with one detector configured to detect light over a relatively narrow angular range, and the other detector configured to detect light over a relatively large angular range. The data from the narrow angular range and the large angular range can then be analyzed to determine a measurement of ocular scattering. | 02-12-2015 |
20150178822 | DISCOVERY ENGINE STOREFRONT - A method and a system of online shopping using a digital storefront. For example, a digital storefront having multiple touchscreen display surfaces presents a plurality of tiles to a user, where one or more tiles display images of items for sale and at least one hunch question which may be related to the environment. In further examples, a response is received from the user to one or more hunch questions, and items are recommended for the user and presented to the user in one or more updated tiles on a touchscreen display surface. | 06-25-2015 |
20150202714 | MULTIPLE BEAM LASER SYSTEM FOR FORMING STENTS - A system and method for precision cutting using multiple laser beams is described. The system and method includes a combination of optical components that split the output of a single laser into multiple beams, with the power, polarization status and spot size of each split beam being individually controllable, while providing a circularly polarized beam at the surface of a work piece to be cut by the laser beam. A system and method for tracking manufacture of individual stents is also provided. | 07-23-2015 |
20160059348 | MULTIPLE BEAM LASER SYSTEM FOR FORMING STENTS - A system and method for precision cutting using multiple laser beams is described. The system and method includes a combination of optical components that split the output of a single laser into multiple beams, with the power, polarization status and spot size of each split beam being individually controllable, while providing a circularly polarized beam at the surface of a work piece to be cut by the laser beam. A system and method for tracking manufacture of individual stents is also provided. | 03-03-2016 |
20160101437 | CMUT ASSEMBLY WITH ACOUSTIC WINDOW - In some examples, a capacitive micromachined ultrasonic transducer (CMUT) apparatus includes one or more CMUTs formed on a CMUT substrate to have an operational direction facing away from the CMUT substrate. As one example, the one or more CMUTs may include a plurality of CMUT cells arranged in groups to form CMUT elements, and a plurality of the CMUT elements may be configured as an array on the CMUT substrate. An acoustic window is disposed over the one or more CMUTs and may contact an external medium. For instance, the acoustic window may be positioned to pass acoustic energy to or from the one or more CMUTs in the operational direction. A coupling medium may be disposed between the CMUTs and the acoustic window to couple acoustic energy between the one or more CMUTs and the acoustic window. | 04-14-2016 |
Patent application number | Description | Published |
20110268003 | Method for Enhancing User Equipment (UE) Power Saving Performance and UE - A method for enhancing power saving performance of user equipment (UE) is provided. The method includes the following steps: a UE receives the downlink data transmitted by an evolved node B (eNB); the UE starts a corresponding RTT Timer according to the received downlink data, the timing of the RTT Timer is determined based on the uplink/downlink (UL/DL) configuration and the sub-frame number of the downlink sub-frame carrying the downlink data by the UE; and the UE controls the discontinuous reception (DRX) process according to the RTT Timer. By re-defining the RTT Timer, the present invention can improve power saving performance of the UE in TDD system effectively. | 11-03-2011 |
20110294513 | METHOD, SYSTEM AND DEVICE FOR INDICATING TRANSMISSION AND TRANSMITTING PREAMBLE - A method, a system and a device for indicating and transmitting the preamble are used to solve the problem existing in the prior art, which reduces the resource utilization efficiency due to that the user equipment (UE) sends the preamble to the evolution base station through the physical random access channel (PRACH) selected by itself in the present random access. The method includes: determining the channel signature associated with the PRACH assigned to the terminal side; sending the determined channel signature to the terminal side, and indicating the terminal side to transmit the preamble using the PRACH associated with the channel signature. Adopting said method can improve the resource utilization efficiency. | 12-01-2011 |
20120083310 | METHOD, DEVICE AND SYSTEM FOR REPORTING POWER HEADROM - A method, device and system for reporting power headroom are provided, and the method includes the following steps: a user equipment determines whether it triggers power headroom reporting (PHR) ( | 04-05-2012 |
20120113811 | METHOD, SYSTEM AND APPARATUS FOR NOTIFYING A UE OF MONITORED COMPONENT CARRIERS - The present invention provides a method for notifying a UE of monitored component carriers. The method comprises the following steps: an evolved Node B (eNB) sends an monitoring changing instruction and Component Carriers (CC) corresponding to the instruction to a UE with a Media Access Control (MAC) layer control command; according to the monitoring changing instruction and the corresponding CC, the UE activates or deactivates monitoring of the corresponding CC. The present invention allows the MAC PDU for instructing the UE to increase, decrease or change the monitored CC. Therefore, the configuration can be achieved in a simple and flexible manner and has higher reliability. | 05-10-2012 |
20120147755 | METHOD AND DEVICE FOR JUDGING RADIO LINK FAILURE IN CARRIER AGGREGATION TECHNOLOGY - The present invention discloses a method and device for judging Radio Link Failure (RLF) in Carrier Aggregation (CA) technology, which are used to effectively judge whether a radio link is failed or not in CA technology. Said method comprises: on an evaluation point, comparing the determined radio link quality parameter of each carrier participating in the RLF judgement with the corresponding radio link quality parameter threshold, determining whether to trigger an in-sync indication or out-of-sync indication on the evaluation point, and judging whether the radio link of the User Equipment (UE) is failed according to the number of the continuously received in-sync indications or out-of-sync indications. The embodiment of the present invention determines whether to trigger an in-sync indication or out-of-sync indication by comparing the radio link quality parameters of the carriers participating in the RLF judgement with the corresponding radio link quality parameter thresholds, and thereby judges that whether the radio link is failed or not in CA technology. | 06-14-2012 |
20120307716 | METHOD AND APPARATUS FOR RANDOM ACCESS RELAY SYSTEM - The present invention discloses a method and apparatus for random access in a relay system, comprising: a Relay Node (RN) determines whether a random access is triggered, if the random access is triggered, the RN performs the random access by using a non-backhaul link subframe. In the present invention, if the random access of the RN working in a base station state is triggered, the RN can perform the random access by using partial or all of non-backhaul link subframe resources, that is, the RN can perform the random access by using the subframes of the Uu interface. The method can reduce the time delay for performing the random access of the RN working as a base station and improve the user experience. | 12-06-2012 |
20120315913 | METHOD, DEVICE AND SYSTEM FOR SELECTING SERVICE CELL - The present invention discloses the method, equipment and system for selecting a donor cell, and the method comprises the following steps: a relay node acquires the donor cell configuration information for the relay node; if the relay node determines, based on the donor cell configuration information, that the currently serving cell is listed in the donor cell configuration information, the relay node continues to work in the cell; otherwise, the relay node selects another cell listed in the donor cell configuration information to access. The present invention can improve the controllability of the selection of a donor cell by a relay node, thereby causing the relay node to quickly select a donor cell and access to the donor cell. | 12-13-2012 |
20130021917 | METHOD AND DEVICE FOR CONTROLLING TIMER ON BUFFER STATUS REPORT - A method for controlling a timer on buffer status report (BSR) is provided in the present invention, and the method is applied to implement the control of the timer on BSR the system to which Carrier Aggregation technology is applied. Said method includes: starting a retransmission BSR timer (retxBSR-Timer) and a BSR periodic reporting timer (periodicBSR-Timer) when a sub frame has a component carrier which has a BSR to be transmitted; restarting the retxBSR-Timer when a sub frame has a component carrier which has new data transmission resources; and restarting the periodicBSR-Timer when a sub frame has a component carrier which has a long BSR or a short BSR to be transmitted. A device for implementing said method is also provided in the present invention. | 01-24-2013 |
20130127474 | CONTROL PROCESSING METHOD OF ENERGY-SAVING CELL AND BASE STATION - Disclosed are a control processing method of an energy-saving cell and a base station. The method comprises: a base station to which a basic coverage cell belongs judging whether a current load state is greater than or equal to a preset energy saving threshold, where more cells are required to participate in a service when the current load state is greater than or equal to the preset energy saving threshold, and the basic coverage cell refers to a cell unable to be turned off or enter an energy saving state in order to ensure continuity; when the current load state is greater than or equal to the preset energy saving threshold, the base station to which the basic coverage cell belongs determining a distribution state of a current service load of a serving cell; the base station to which the basic coverage cell belongs determining, according to information of an energy-saving cell and the distribution state of the current service load, the energy-saving cell to be deactivated, the energy-saving cell being a cell capable of entering the energy saving state; and the base station to which the basic coverage cell belongs deactivating the determined energy-saving cell. The present invention provides a solution for selectively activating and deactivating an energy-saving cell among different systems, and can optimize the existing energy saving technology, and improve the energy utilization rate of the entire network. | 05-23-2013 |
20130150044 | METHOD AND BASE STATION FOR ENERGY SAVING COMPENSATION - The present invention relates to the technical field of wireless communications, is used for optimizing an energy saving mechanism, and provides a method for energy saving compensation, which method comprises: expanding, by a base station, a signal coverage area to form a new cell, when the energy saving activation requirements are met, so as to allow an energy-saving cell managed by the base station to switch users to the new cell and to activate the energy saving state; and when energy saving deactivation requirements are met, and if the energy-saving cell managed by the base station deactivates the energy saving state, then switching, by the base station, the users to the energy-saving cell and reducing the signal coverage area. The present invention optimizes currently available energy saving mechanisms and provides a solution capable of compensating the service loss of energy-saving cells. | 06-13-2013 |
20130176923 | Methods for Requesting and Responding to Multimedia Broadcast Multicast Service (MBMS) Counting - Disclosed is a method for requesting and feeding back a multimedia broadcast multicast service (MBMS) state, the method being used for allowing a network side to inform a related user equipment (UE) to feed back MBMS state information and allowing the informed UE to feed back the MBMS state information. The request method comprises: when necessary to acquire the receiving state of an MBMS, a base station transmits, through a physical downlink control channel (PDCCH) scrambled by a radio network temporary identifier (RNTI) belonging specially to an MBMS service, or through a system message, a multicast control channel (MCCH) change notification to the UE; and the base station transmits an MBMS state report request to the UE through the changed MCCH. The present invention also discloses a device for implementing the method. | 07-11-2013 |
20130286917 | METHOD AND DEVICE FOR COMPENSATION AND RESTORING OF COVERAGE AREA - Disclosed is a method for compensation and restoring of a coverage area, for realizing energy saving and compensation between nodes. The coverage compensation method includes: judging whether or not the trigger condition for starting an energy saving and compensation process is satisfied according to a preset energy saving and compensation strategy; when the trigger condition for starting the energy saving and compensation process is satisfied, one of a first node and a second node carries out an energy saving operation in the energy saving and compensation process while the other node carries out a compensation operation in the energy saving and compensation process; wherein the first node is a compensation node and the second node is an energy saving node, or the first node is an energy saving node and the second node is a compensation node. Further disclosed is a device for implementing the method. | 10-31-2013 |
20130286926 | METHOD AND DEVICE FOR SYNCHRONOUSLY COUNTING MBMS SERVICE - Disclosed are a method and a device for synchronously counting a multimedia broadcast multicast service (MBMS) service. Through technical solutions of embodiments of the present invention, synchronization time point information is carried in a message sent to a base station by an MBMS coordinating entity (MCE), so that the base station counts the MBMS service at the corresponding synchronization time point, collects the counting information and feeds back the counting information to the MCE. Whereby, the base station can count the MBMS service for each terminal device served by the base station at the same time point and collect and transmit the MBMS service counting information to the MCE, thereby ensuring synchronization of MBMS service counting time, ensuring synchronization of multicast control channel (MCCH) contents at the air interface, and solving the problem that synchronization of MBMS service counting time cannot be ensured in the prior art. | 10-31-2013 |
20140011261 | NITROGEN FIXATION GENE ISLAND SUITABLE FOR EXPRESSING IN PROKARYOTIC AND EUKARYOTIC SYSTEMS - Provided is a nitrogen fixation gene island suitable for expressing in prokaryotic and eukaryotic systems, wherein the prokaryotic nitrogen fixation genes are modified using T7 promoters to make them suitable for eukaryotic expression. | 01-09-2014 |
20140022975 | METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK DATA - The present invention provides a method and an apparatus for transmitting downlink data, where unused MBSFN subframes are used for scheduling and transmitting downlink unicast data to specified terminal devices adopting a pre-defined transmission mode. Therefore, PDSCH transmission is implemented in MBSFN while the power consumption of terminal devices is kept at the same level as in the conventional art because there is no addition and modification to the higher layer signaling procedures. | 01-23-2014 |
20140044074 | RANDOM ACCESS METHOD AND APPARATUS BASED ON MULTIPLE UPLINK TIMING ADVANCES - Disclosed are a random access method and apparatus based on multiple uplink timing advances. The method includes: when acquiring that a user equipment has multiple uplink timing advances, initiating, by a network side, for the user equipment a random access on a designated carrier of a secondary cell. According to the examples, random access in the SCell can be realized in scenarios that multi-TA is maintained. | 02-13-2014 |
20140050135 | METHOD AND BASE STATION FOR ENERGY SAVING COMPENSATION - The present invention relates to the technical field of wireless communications, is used for optimizing an energy saving mechanism, and provides a method for energy saving compensation, which method comprises: expanding, by a base station, a signal coverage area to form a new cell, when the energy saving activation requirements are met, so as to allow an energy-saving cell managed by the base station to switch users to the new cell and to activate the energy saving state; and when energy saving deactivation requirements are met, and if the energy-saving cell managed by the base station deactivates the energy saving state, then switching, by the base station, the users to the energy-saving cell and reducing the signal coverage area. The present invention optimizes currently available energy saving mechanisms and provides a solution capable of compensating the service loss of energy-saving cells. | 02-20-2014 |
20140050138 | METHOD AND APPARATUS FOR HANDING OVER DEVICE - Disclosed in the present invention are a method and apparatus for handing over device, and belongs to the field of mobile communication. The method comprises: obtaining the Multimedia Broadcast Multicast Service (MBMS) service reception information of the device; according to the MBMS service reception information, selecting a target cell supporting the MBMS service for the device; handing over the device to the target cell. The apparatus comprises: an acquiring module, for obtaining the MBMS service reception information of the device; a selection module, for selecting a target cell supporting the MBMS service for the device according to the MBMS service reception information; a handing over module, for handing over the device to the target cell. By the implementation of the technical solution that selecting a target cell supporting the MBMS service for the device according to the MBMS service reception information, and switching the device to the target cell, the present invention guarantees the continuity of the MBMS service during the handover process of the device. | 02-20-2014 |
20140086137 | Method and apparatus for semi-persistent scheduling transmission - Disclosed are a method and apparatus for semi-persistent scheduling (SPS) transmission, used to transmit the SPS via a Multimedia Broadcast multicast service Single Frequency Network (MBSFN) subframe. A method provided in the present application for implementing an SPS transmission comprises: a user equipment (UE) determining an MBSFN subframe; the UE receiving an SPS transmission data packet in the MBSFN subframe. | 03-27-2014 |
20140233535 | UPLINK TRANSMISSION METHOD AND APPARATUS IN CARRIER AGGREGATION SYSTEM - The invention discloses an uplink transmission method and apparatus in a carrier aggregation system and relates to the field of radio communications so as to address the issue of how to perform uplink transmission in a secondary cell when a base station configures a user equipment additionally with the secondary cell. In the invention, a user equipment selects, under a preset reference carrier selection rule, one of downlink carriers corresponding to cells having already eatablished downlink synchronization with a base station as a timing reference downlink carrier used by a secondary cell after the base station configures the user equipment additionally with the secondary cell; and the user equipment performs uplink transmission in the secondary cell according to downlink timing of the timing reference downlink carrier. With the invention, a timing reference downlink carrier used by an additionally configured secondary cell in uplink transmission can be determined and uplink transmission can be further preformed over the timing reference downlink carrier. | 08-21-2014 |
20140293859 | CELL RESELECTION METHOD AND DEVICE - Disclosed are a cell reselection method and device, relating to the technical field of wireless communications, used for improving the continuity of receiving MBMS data by UE. In the present application, a terminal in an idle state acquires the information about a multimedia broadcast multicast service (MBMS) currently being transmitted; the terminal sets the priority of the frequency point where the MBMS transmission is located as the highest priority; and the terminal reselects a cell according to the set priority of the frequency point. By way of applying the present invention, the continuity of receiving MBMS data by the UE can be improved. | 10-02-2014 |
20150037735 | MOLECULAR GLASS PHOTORESISTS CONTAINING BISPHENOL A FRAMEWORK AND METHOD FOR PREPARING THE SAME AND USE THEREOF - The present invention provides a class of molecular glass photoresist (I and II) comprising bisphenol A as a main structure and their preparation. The molecular glass photoresist is formulated with a photoacid generator, a cross-linking agent, a photoresist solvent, and other additives into a positive or negative photoresist. A photoresist with a uniform thickness is formed on a silicon wafer by spin-coating. The photoresist formulation can be used in modern lithography, such as 248 nm photolithography, 193 nm photolithography, extreme-ultraviolet (EUV) lithography, nanoimprint lithography, electron beam lithography, and particularly in the EUV-lithography technique. | 02-05-2015 |
20150055488 | METHOD AND DEVICE FOR JUDGING RADIO LINK FAILURE IN CARRIER AGGREGATION TECHNOLOGY - The present invention discloses a method and device for judging Radio Link Failure (RLF) in Carrier Aggregation (CA) technology, which are used to effectively judge whether a radio link is failed or not in CA technology. Said method comprises: on an evaluation point, comparing the determined radio link quality parameter of each carrier participating in the RLF judgement with the corresponding radio link quality parameter threshold, determining whether to trigger an in-sync indication or out-of-sync indication on the evaluation point, and judging whether the radio link of the User Equipment (UE) is failed according to the number of the continuously received in-sync indications or out-of-sync indications. The embodiment of the present invention determines whether to trigger an in-sync indication or out-of-sync indication by comparing the radio link quality parameters of the carriers participating in the RLF judgement with the corresponding radio link quality parameter thresholds, and thereby judges that whether the radio link is failed or not in CA technology. | 02-26-2015 |
20150071059 | METHOD AND DEVICE FOR TRANSMITTING IP DATA PACKET - A method and device for transmitting Internet Protocol (IP) data packet are disclosed by the present invention, the method comprising: an Access Point (AP) device obtains an IP data packet needing to be sent to an User Equipment (UE); said AP device use the type information of said IP data packet to determine the corresponding Data Radio Bearer (DBR) of said IP data packet; Said AP device sends said IP data packet to said UE through said DBR; in the embodiments of the present invention, when the AP device accesses the IP network locally or directly through the IP network, the Quality of Service (QoS) insurance of IP data packet in the air interface transmission is implemented, on the basis of the direct mapping between the type information and the data radio bearer. | 03-12-2015 |
20150119011 | INFORMATION PROCESSING METHOD AND DEVICE - Information processing method and device applied to a first electronic device are disclosed. The first electronic device can establish a communication connection with a second electronic device, and the method includes: judging whether a communication between the first electronic device and the second electronic device meets a preset condition to obtain a first judgment result; and in a case where the first judgment result indicates that the communication between the first electronic device and the second electronic device does not meet the preset condition, obtaining a second communication address of the second electronic device and obtaining a third communication address of a third electronic device, where the third electronic device can establish a communication connection with the second electronic device such that a communication connection can be established between the second electronic device and the third electronic device based on the second communication address and/or the third communication address. | 04-30-2015 |
20150334669 | Enhanced Mechanism of Uplink Time Alignment Maintenance for Inter-ENB Carrier Aggregation - Apparatus and method are provided to configure two-tier identifiers for serving cells of a UE configured with inter-eNB carrier aggregation (CA). In one novel aspect, cell group identifiers are configured. The cell group identifier is a super set of one or more uplink group identifiers that are associated with serving cells served by the same base station. In one embodiment, different MAC entities are associated with different cell group identifiers. The UE performs uplink alignment, monitoring and management procedures linking to the cell group identifier. In another novel aspect, a group TAG, which is a super set identifier of one or more cell TAGs associated with serving cells served by the same base station, is configured. In one embodiment, the UE performs uplink alignment procedure based on the status of the group TAG, which is determined based on the status of the cell TAGs associated with the group TAG. | 11-19-2015 |
20160044633 | Optimized Mechanism for Paging Transmission and Reception - Methods and apparatus are provided for paging transmission and reception for UEs requiring coverage extension/coverage enhancement. In one novel aspect, the UE reports the CE status to the MME. CE level related information and the corresponding cell ID are provided from eNB to MME. MME sends paging information including the repetition number to all eNBs in the corresponding tracking area when paging the UE. In another novel aspect, a paging area is used for CE UEs. The UE receives paging area information, notifies the network, and updates the stored paging area information upon detecting changes between the received and the stored paging areas. In another embodiment, the UE reports its CE status upon detecting CE status changes. The eNB stores UE CE information and forwards it to neighboring eNBs in the same paging area. The eNB pages UEs on its CE UE list with repetition while paging other UEs normally. | 02-11-2016 |
20160050626 | METHOD AND DEVICE FOR MONITORING PAGING SIGNAL - A method and device for monitoring paging signals are provided. A method of DRX cycle extension for a mobile terminal in an IDLE mode is provided. The method is used to extend the current DRX cycle. A longer paging cycle is designed by extending a UE-specific paging cycle or introducing a new coefficient in system information. A method for extending the SFN is proposed in the invention. A boundary and a serial number of the SFN in the longer wrap around are indicated by the SI. To avoid a situation in which the high paging load occurs in certain paging frames or subframes, the UE_ID is extended in the invention. The proposed mechanism can flexibly adjust the paging cycle and the SFN extension to meet the actual requirements. The long DRX cycle can save a lot of power consumption of the mobile terminals in the IDLE mode. | 02-18-2016 |
Patent application number | Description | Published |
20130320466 | Package for Damping Inertial Sensor - A capped micromachined accelerometer with a Q-factor of less than 2.0 is fabricated without encapsulating a high-viscosity gas with the movable mass of the micromachined accelerometer by providing small gaps between the movable mass and the substrate, and between the movable mass and the cap. The cap may be an silicon cap, and may be an ASIC smart cap. | 12-05-2013 |
20140131850 | MICROCHIP WITH BLOCKING APPARATUS AND METHOD OF FABRICATING MICROCHIP - A microchip has a base die with a conductive interconnect and an isolation trench around at least a portion of the conductive interconnect, and a cap die secured to the base die. A seal, formed from a metal material, is positioned between the base die and the cap die to secure them together. The microchip also has a blocking apparatus, between the isolation trench and the metal seal, that at least in part prevents the metal material from contacting the interconnect. | 05-15-2014 |
20140203422 | Microchip with Blocking Apparatus and Method of Fabricating Microchip - A microchip has a base die with a conductive interconnect and an isolation trench around at least a portion of the conductive interconnect, and a cap die secured to the base die. A seal, formed from a metal material, is positioned between the base die and the cap die to secure them together. The microchip also has a blocking apparatus, between the isolation trench and the metal seal, that at least in part prevents the metal material from contacting the interconnect. | 07-24-2014 |
20140332945 | Method of Etching a Wafer - A method of etching a plurality of cavities in a wafer provides a wafer having a patterned hard mask layer. The patterned hard mask has open areas defining locations for first cavities and second cavities. A mask is applied to cover the patterned hard mask layer. The mask is etched to remove wafer material from areas defined by the second cavities. The mask is removed and etching then removes wafer material except as prevented by the hard mask layer. This leaves the first cavities with a first depth and further deepens the second cavities to a depth greater than the first depth. By suitably configuring the second cavities, a capped die can be formed by securing the wafer to a second wafer and removing at least a portion of the unsecured side of the first wafer to expose the second cavities, thereby forming a plurality of caps on the second wafer. | 11-13-2014 |
20140356989 | METHOD OF MANUFACTURING MEMS DEVICES WITH RELIABLE HERMETIC SEAL - Manufactured capped MEMS device wafers are tested for hermeticity on a vacuum prober at differing pressures or on a wafer prober at differing temperatures. Resonant frequency testing is conducted. Leaking MEMS devices are distinguished from the remaining MEMS devices on the basis of quality factor (“Q”) measurements obtained from the resonant frequency testing. | 12-04-2014 |
20140374850 | Apparatus and Method for Shielding and Biasing in MEMS Devices Encapsulated by Active Circuitry - One or more conductive shielding plates are formed in a standard ASIC wafer top metal layer, e.g., for blocking cross-talk from MEMS device structure(s) on the MEMS wafer to circuitry on the ASIC wafer when the MEMS device is capped directly by the ASIC wafer in a wafer-level chip scale package. Generally speaking, a shielding plate should be at least slightly larger than the MEMS device structure it is shielding (e.g., a movable MEMS structure such as an accelerometer proof mass or a gyroscope resonator), and the shielding plate cannot be in contact with the MEMS device structure during or after wafer bonding. Thus, a recess is formed to ensure that there is sufficient cavity space away from the top surface of the MEMS device structure. The shielding plate is electrically conductive and can be biased, e.g., to the same voltage as the opposing MEMS device structure in order to maintain zero electrostatic attraction force between the MEMS device structure and the shielding plate. | 12-25-2014 |
20140374856 | Apparatus and Method for Preventing Stiction of MEMS Devices Encapsulated by Active Circuitry - One or more stopper features (e.g., bump structures) are formed in a standard ASIC wafer top passivation layer for preventing MEMS device stiction vertically in integrated devices having a MEMS device capped directly by an ASIC wafer. A TiN coating may be used on the stopper feature(s) for anti-stiction. An electrical potential may be applied to the TiN anti-stiction coating of one or more stopper features. | 12-25-2014 |
20150097253 | Sealed MEMS Devices with Multiple Chamber Pressures - A MEMS apparatus has a substrate, a cap forming first and second chambers with the base, and movable microstructure within the first and second chambers. To control pressures, the MEMS apparatus also has a first outgas structure within the first chamber. The first outgas structure produces a first pressure within the first chamber, which is isolated from the second chamber, which, like the first chamber, has a second pressure. The first pressure is different from that in the second pressure (e.g., a higher pressure or lower pressure). | 04-09-2015 |
20150115376 | MEMS Device with Outgassing Shield - A capped micromachined device has a movable micromachined structure in a first hermetic chamber and one or more interconnections in a second hermetic chamber that is hermetically isolated from the first hermetic chamber, and a barrier layer on its cap where the cap faces the first hermetic chamber, such that the first hermetic chamber is isolated from outgassing from the cap. | 04-30-2015 |