233results about How to "Minimal interference" patented technology

A stent or other intraluminal medical device having markers formed from housings integral with the stent and marker inserts having a higher radiopacity than the stent provides for more precise placement and post-procedural visualization in a vessel, by increasing the radiopacity of the stent under X-ray fluoroscopy. The housings are formed integral to the stent and the marker inserts are made from a material close in the galvanic series to the stent material and sized to substantially minimize the effect of galvanic corrosion.

A method and system for notifying a user of an event or information using motion and transparency on a small screen display are provided. When an in-application event occurs or an indication that a new event has occurred, a notification window is created off display, and graphically animated on top of the current application display, in a small window which is un-obtrusive to user interaction in the active application. A user may set preferences for display location, size, transparency, color, time displayed, and content, and each window may vary based on the notification type, allowing users to quickly glance and identify the information displayed. The alert information may be summarized and or prioritized based on notification types,

A multi-carrier transmission system has a plurality of transceivers, each having a receiver and a transmitter. Data is transmitted between the transceivers by modulating the data onto a multiplicity of carrier waves in the form of multi-bit symbols, wherein each carrier wave constitutes a channel, and wherein the number of bits per symbol (the bit loading), varies between channels and, within a channel, with time, so that each channel has associated therewith a bit loading parameter. In operation, the multi-carrier system is adapted to synchronously update, at the transceivers, the bit loading parameters associated with each channel by transmission of data over a control channel, in that the control channel is established, at system start-up, on a predetermined one of the multiplicity of carrier waves whose identity is known to the transceivers, and in that the control channel is, after start-up, changed from the predetermined channel to a further channel, selected by the first transceiver on the basis of channel characteristics.

A method and apparatus for dynamically separating and recovering original signal sources by processing a set of mixed received mixtures and convolution of said signals utilizing differential equations and a computer. The system of the invention enables the blind separation and recovery of an unknown number of signals mixed together in dynamically changing interference environments with very minimal assumption on the original signals. The system of this invention has practical applications to nonmultiplexed media sharing, adaptive interferer rejection, acoustic sensors, acoustic diagnostics, medical diagnostics and instrumentation, speech, voice, language recognition and processing, wired and wireless modulated communication signal receivers, and cellular communications.

A control panel having a touch sensitive position sensor and at least one mechanical switch located within a sensitive area of the position sensor is provided. The position sensor comprises a capacitive position sensing element coupled to position sensing circuitry operable to determine the position of a capacitive load, such as a finger, positioned adjacent to the sensitive area of the position sensing element. The mechanical switch has an open state and a closed state and is arranged such that a contact of the switch is selectively electrically coupled to or decoupled from the position sensing element depending on whether the switch is in the open or closed state. A compact and robust control panel can thus be provided in which the presence of the mechanical switch within the sensitive area of the position sensor does not significantly effect its sensitivity.

A method for coordinating the paths of multiple autonomous vehicles and a vehicle configured to coordinate its path with the path(s) of other vehicles so as to enhance cooperation between the vehicles. The method also enables the vehicles to perform their respective missions more efficiently. The method is applicable to any system in which multiple autonomous vehicles may need to coordinate their paths with each other.

The present invention discloses a method and system for time synchronization among distributed communication devices, particularly wireless and even beyond communications range, either fixed or mobile, configured to communicate data with each other, typically over peer to peer local area networks, specifically mesh or ad-hoc networks, where said communication devices are usually dormant in order to save battery power, then said devices are configured to simultaneously wake up and accordingly allocate synchronized time slots for communications among thereof. A particular embodiment of the present invention concerns with Automatic Meter Reading (AMR).

The invention relates to sewable tamper detection elements for radio frequency identification devices, and to radio frequency identification devices with such tamper detection elements. The devices can be sewn into a seam of a garment so that the tamper detection element is partially inside the garment, e.g. as part of a care label. This makes removing the device difficult without breaking the tamper detection element, and thereby shoplifting attempts can be more reliably noticed. For this purpose, the tamper detection element is formed so that sewing through it does not break the element. The radio frequency identification device may be formed asymmetric so that the tamper detection element is on a different side from the antenna elements with respect to the chip. In this manner, the disturbance from the tamper detection element to the antenna can be minimized. The tamper detection element may be formed so that it contains a transparent opening on which text can be printed.

A system and method for allocating channelization code and scrambling code in multiple code rates is disclosed. In the present invention, many user signals that have various chip rates in overlaid frequency band can be transmitted with minimum interference between users, by allocating orthogonal spreading code in which the sum of bits for a period that is determined by the ratio of chip rates is canceled respectively, as channelization codes.

A biometric sensor device, a portable electronic device including an actuatable biometric input device, and method of biometric authentication that includes an input device that generates a signal or completes a circuit when actuated, and a biometric reader that reads a biometric of a user when the user actuates the input device to generate the signal or complete the circuit. An authentication section authenticates the biometric read on the biometric reader to generate one of a data access allowance function based on authentication of the biometric input to the actuatable biometric input device and a data access prevention function based on non-authentication of the biometric input to the actuatable biometric input device. The data access allowance function permits data to be accessed at the data access interface, and the data access prevention function prevents reading and / or access to data anywhere on the data storage and access device.

A method and apparatus for generating partition keys in an information handling system having a partitioned database. Partition keys are generated by concatenating a partition subrange identifier specifying a subrange of key values and a sequence number specifying a particular key value within a subrange. Partition keys are assigned with the aid of a partition key control table that stores subrange and available key block information and is updated whenever key blocks are reserved or the database is repartitioned. An activity indicator maintained for each partition indicates recent activity in the partition. In response to a request for a partition key, a partition is selected for key assignment having the least recent activity as indicated by its activity indicator. Specific activity indicators disclosed include a timestamp for each partition in the control table, as well as a count of the threads in a particular application instance concurrently accessing a partition.

An electronic apparatus for reducing interference in a desired signal, the apparatus comprising: (a) a plurality of measurement signal lines, each connected to a respective measurement signal electrode; and (b) one or more reference signal lines, each connected to respective one or more reference electrodes; each of said measurement signal lines or a respective group of said measurement signal lines being associated by being in close physical proximity with a respective one of said reference signal lines for a substantial part of their lengths, so that each measurement signal line or signal line group with its corresponding reference signal line forms a measurement signal line or measurement signal line group / reference signal line pair, said electronic apparatus further comprising subtraction means for subtracting an interference on each reference signal line from an interference signal on the associated measurement signal line or from each measurement signal line in the measurement signal line group in that measurement signal line or measurement signal line group / reference signal line pair, wherein at least one of the measurement signal electrodes is arranged to be in direct electrical connection with a subject and at least one of the reference signal electrodes is arranged to be in close physical proximity but not in direct electrical contact with the subject.

A vehicle has an electric drive mode, a body defining a vehicle interior, a first and second set of audio speakers positioned outside and inside of the interior, respectively, and a controller. The controller generates an acoustic signal, broadcasts the acoustic signal via the first set of speakers during an electric drive mode, and generates and broadcasts a cancelling signal via the second set of speakers. The broadcasts are coordinated to substantially cancel an attenuated portion of the acoustic signal resulting from propagation of the acoustic signal into the interior. A method cancels a synthesized sound within a vehicle interior by collecting vehicle operating values, generating an acoustic signal as the synthesized sound during an electric drive mode, and processing the acoustic signal to generate a modified acoustic signal approximating an attenuated portion of the acoustic signal propagating into the vehicle interior.

The system of the present invention includes a large-zone RFID reader, a plurality of small-zone RFID readers, and a plurality of RFID tags. The large-zone RFID reader covers areas which are not covered by the small-zone RFID readers. The output power of the small-zone RFID readers is controlled by the large-zone RFID reader based on RFID tag operation patterns of the small-zone RFID readers. The system reliability is improved by a method that uses reliable RFID tags, RFID reader beacon signals, and RFID tag's repetitive transmitting signals to detect tag failures. The system security is provided by a method that uses integrated crypto engines in both the RFID tags and RFID readers.

A coherent adaptive subcarrier modulation system applies subcarrier modulation to quadrature modulated signals with constant envelope modulation suitable for efficient sinewave and squarewave subcarrier modulations. The quadrature subcarrier enables the addition of new signals to the in-phase and quadrature phase signals with spectral isolation in the Global Position System while maintaining a constant envelop amplitude.

A method of reusing frequency bands between base stations of a terrestrial mobile communications network and a satellite communications network, comprising allocating the frequency bands using integrated resource management and other mitigation techniques in a such a way as to minimise interference between both the systems, thus making optimum usage of valuable frequency spectrum.

An integrated circuit device with embedded passive component by flip-chip connection is provided which includes a flip chip and a dummy chip. The dummy chip includes at least an embedded passive component, a plurality of redistribution traces and a plurality of flip-chip pads. The flip chip is smaller than the dummy chip and is mounted on a surface of the dummy chip with the flip-chip pads. The embedded passive component is electrically connected to the flip chip via the redistribution traces and the flip-chip pads. A plurality of solder balls are placed at the peripheral region of the surface of the dummy chip.

An implantable medical device has a conductive housing, electronic circuitry for the operation of the implantable medical device, and radio frequency circuitry for transmitting and / or receiving radio frequency signals, the electronic circuitry and the radio frequency circuitry being interconnected and arranged within in the housing. The housing has at least one slot therein, and a slot feed operatively interconnected between the radio frequency circuitry and the slot. The electrically conductive housing provided with the at least one slot is operable as an antenna for the radio frequency signals. The electric circuitry, the radio frequency circuitry, and the interconnection can be enclosed by the housing so that they are shielded from external radiation in any direction.

In an electronic apparatus and method for reducing interference in an EPM signal, there is provided (a) a signal line connected to a-signal electrode; and (b) a reference line connected to a reference electrode. The signal line and reference line are associated by being in close physical proximity for a substantial part of their lengths. Subtraction means subtracts an interference signal on the reference line from an interference signal on the signal line to enhance a desired signal on the signal line.

A catheter device (1) is disclosed for transvascular delivery of a medical device to a cardiac valve region of a patient. The catheter device comprises an elongate sheath (2) with a lumen and a distal end (3) for positioning at a heart valve (6), and a second channel (7) that extends parallel to, or in, said elongate sheath, an expandable embolic protection unit (8), such as a filter, wherein at least a portion of the expandable embolic protection unit is arranged to extend from an orifice of the second channel, wherein the embolic protection unit is non-tubular, extending substantially planar in the expanded state for covering ostia of the side branch vessels in the aortic arch.

An ambient atmosphere glow discharge spectrometer is disclosed having a capillary, two electrodes and a means for recording the atomic emissions.

An implantable medical device has a housing containing electronic operating circuitry for the operation of the implantable medical device, and radio frequency circuitry for transmitting and / or receiving radio frequency signals. The implantable medical device has at least one surface portion made of an electrically conductive material. At least one slot is provided in the surface portion of the electrically conductive material and a slot feed is operatively interconnected between the radio frequency circuitry and the slot. The surface portion of the electrically conductive material and provided with the slot is adapted to operate as a transmitting and / or receiving antenna for the radio frequency signals.

A biometric sensor device, a portable electronic device including an actuatable biometric input device, and method of biometric authentication that includes an input device that generates a signal or completes a circuit when actuated, and a biometric reader that reads a biometric of a user when the user actuates the input device to generate the signal or complete the circuit. An authentication section authenticates the biometric read on the biometric reader to generate one of a data access allowance function based on authentication of the biometric input to the actuatable biometric input device and a data access prevention function based on non-authentication of the biometric input to the actuatable biometric input device. The data access allowance function permits data to be accessed at the data access interface, and the data access prevention function prevents reading and / or access to data anywhere on the data storage and access device.

A method and system for establishing a channel in a wireless video area network, is provided. Establishing a channel involves scanning available high-rate and low-rate channels, selecting a channel from the available channels with minimal interference with other networks, determining if the selected channel remains available for a listening period, and if the selected channel remains available, then starting communication on the selected channel. The selected channel is a high-rate channel and a corresponding low-rate channel.

The present invention is a particulate filter face mask with replaceable filter element, the filter element being inexpensive, easily replaceable and securely held within the mask when installed.

A technique for allowing a first and second group of users to share access to a communication channel such as a wireless radio channel is disclosed. The first group of users can be a group of legacy users such as those that use digital CDMA cellular telephone equipment based on the IS-95 standard. The second group of users can be a group of web surfers that code their transmissions using one of multiple formats. The first group of users can share one modulation structure such as, on a reverse link, using unique phase offsets of a common pseudorandom noise (PN) code. The second group of users can share another modulation structure, but in a manner that is consistent and compatible with the users of the first group. Specifically, the users of the second group may all use the same PN code and code phase offset. Each channel used by the second group of users can be uniquely identified by a corresponding unique orthogonal code.

An improved multi-purpose kickstand assembly 100 has a modular kickstand mechanism 134 to securely support an electronic communications device 102 in a landscape mode and / or portrait mode. One or more sensors in the electronic communications device can detect the position of a kickstand-magnet 156 secured to the kickstand 136 to electronically determine the position of the kickstand. The kickstand can serve as a channel 170 for a speaker port 166 and / or speaker 168 and can enhance antennae performance for improved audio quality.

There is provided a method and system for collecting optical data for use in time resolved optical imaging wherein light is directionally propagated through free-space optics to impinge on a plurality of illumination at the surface of a biological tissue such as that comprised in small animals. Light re-emitted from the tissue is collected and directionally propagated through free space optics towards a detector to produce time resolved optical signals useful for optical image reconstructions.