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Digital wireless position sensor
ActiveUS7397364B2Fast chargingImprove signal-to-noise ratioElectric signal transmission systemsMagnetic measurementsVoltage dropEngineering
A method is provided for tracking an object, including positioning a radio frequency (RF) driver to radiate an RF driving field toward the object, and fixing to the object a wireless transponder that includes a power coil and at least one sensor coil. The method also includes receiving the RF driving field using the power coil and storing electrical energy derived therefrom. A plurality of field generators are driven to generate electromagnetic fields at respective frequencies in a vicinity of the object that induce a voltage drop across the at least one sensor coil. A digital output signal is generated at the wireless transponder indicative of the voltage drop across the sensor coil, and the generation of the digital output signal is powered using the stored electrical energy. The digital output signal is transmitted from the wireless transponder using the power coil, and the transmission of the digital output signal is powered using the stored electrical energy. The digital output signal is received and processed to determine coordinates of the object.
Owner:BIOSENSE WEBSTER INC
Magnetostrictive actuator of a medical ultrasound transducer assembly, and a medical ultrasound handpiece and a medical ultrasound system having such actuator
ActiveUS8487487B2Efficiently sculpt teeth or remove boneLow powerUltrasonic/sonic/infrasonic diagnosticsPiezoelectric/electrostriction/magnetostriction machinesUltrasonographyUltrasonic sensor
Owner:CILAG GMBH INT
Low power pulse oximeter
ActiveUS8457703B2Reduce power consumptionIncrease demandDiagnostic recording/measuringSensorsPulse oximetersEngineering
A pulse oximeter may reduce power consumption in the absence of overriding conditions. Various sampling mechanisms may be used individually or in combination. Various parameters may be monitored to trigger or override a reduced power consumption state. In this manner, a pulse oximeter can lower power consumption without sacrificing performance during, for example, high noise conditions or oxygen desaturations.
Owner:JPMORGAN CHASE BANK NA
Inductive power supply system with multiple coil primary
ActiveUS20090230777A1Save energyIncrease powerTransformersCircuit arrangementsCommunications systemElectric power
An inductive power supply including multiple tank circuits and a controller for selecting at least one of the tank circuits in order to wirelessly transfer power based on received power demand information. In addition, a magnet may be used to align multiple remote devices with the inductive power supply. In one embodiment, different communication systems are employed depending on which coil is being used to transfer wireless power.
Owner:PHILIPS IP VENTURES BV
Apparatus and method for ranging and noise reduction of low coherence interferometry lci and optical coherence tomography oct signals by parallel detection of spectral bands
InactiveUS20050018201A1Improve signal-to-noise ratioImproves current data acquisition speed and availabilityDiagnostics using lightInterferometersBandpass filteringSpectral bands
Apparatus, method, logic arrangement and storage medium are provided for increasing the sensitivity in the detection of optical coherence tomography and low coherence interferometry (“LCI”) signals by detecting a parallel set of spectral bands, each band being a unique combination of optical frequencies. The LCI broad bandwidth source can be split into N spectral bands. The N spectral bands can be individually detected and processed to provide an increase in the signal-to-noise ratio by a factor of N. Each spectral band may be detected by a separate photo detector and amplified. For each spectral band, the signal can be band p3 filtered around the signal band by analog electronics and digitized, or, alternatively, the signal may be digitized and band pass filtered in software. As a consequence, the shot noise contribution to the signal is likely reduced by a factor equal to the number of spectral bands, while the signal amplitude can remain the same. The reduction of the shot noise increases the dynamic range and sensitivity of the system.
Owner:THE GENERAL HOSPITAL CORP
Touch Screen Element
InactiveUS20070257894A1Low powerProvide detectionElectronic switchingInput/output processes for data processingElectricityElectrical resistance and conductance
A capacitive two-dimensional (2D) touch panel has three sets of interleaved electrodes. A first set of electrodes is spaced apart along the y-direction and these are galvanically connected to each other by a resistive strip connected at either end to a connection line. A second set of electrodes is also arrayed along the y-direction and these are galvanically connected to each other via a notionally non-resistive first connection. A third set of electrodes is also arrayed along the y-direction and these are galvanically connected to each other via a notionally non-resistive second connection. The second and third sets of electrodes are interleaved without galvanic cross-conduction to provide a gradient along the x-direction to resolve touch position in the x-direction. The first set of electrodes resolves touch position along the y-direction. Passive or active capacitive sensing techniques may be used to acquire the position information from the 2D touch panel.
Owner:ATMEL CORP
Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands
InactiveUS7355716B2Improve signal-to-noise ratioImproves current data acquisition speed and availabilityDiagnostics using lightInterferometersBandpass filteringSpectral bands
Apparatus, method, logic arrangement and storage medium are provided for increasing the sensitivity in the detection of optical coherence tomography and low coherence interferometry (“LCI”) signals by detecting a parallel set of spectral bands, each band being a unique combination of optical frequencies. The LCI broad bandwidth source can be split into N spectral bands. The N spectral bands can be individually detected and processed to provide an increase in the signal-to-noise ratio by a factor of N. Each spectral band may be detected by a separate photo detector and amplified. For each spectral band, the signal can be band p3 filtered around the signal band by analog electronics and digitized, or, alternatively, the signal may be digitized and band pass filtered in software. As a consequence, the shot noise contribution to the signal is likely reduced by a factor equal to the number of spectral bands, while the signal amplitude can remain the same. The reduction of the shot noise increases the dynamic range and sensitivity of the system.
Owner:THE GENERAL HOSPITAL CORP
Semiconductor device
ActiveUS20090002590A1Low costIncrease speedSolid-state devicesSemiconductor/solid-state device manufacturingEngineeringSingle crystal
It is an object to provide a semiconductor device which has a large size and operates at high speed. A top gate transistor which includes a semiconductor layer of single-crystal and a bottom gate transistor which includes a semiconductor layer of amorphous silicon (microcrystalline silicon) are formed over the same substrate. Then, gate electrodes of each transistor are formed with the same layer, and source and drain electrodes are also formed with the same layer. Thus, manufacturing steps are reduced. In other words, two types of transistors can be manufactured by adding only a few steps to the manufacturing process of a bottom gate transistor.
Owner:SEMICON ENERGY LAB CO LTD
Bandwidth asymmetric communication system based on OFDM and TDMA
InactiveUS20090196163A1Reduce complexityCutting synchronizationTransmission path divisionSecret communicationCommunications systemUplink transmission
The present invention relates to a communication system comprising a plurality of terminals each having an uplink transmission unit (1) for transmitting radio frequency OFDM signals at a radio frequency and an access point having an uplink receiving unit (4) for concurrently receiving said radio frequency OFDM signals from at least two terminals, said OFDM signals being Orthogonal Frequency Division Multiplex (OFDM) modulated, wherein the bandwidth of said uplink transmission units and of the transmitted radio frequency OFDM signals is smaller than the bandwidth of said uplink receiving unit, that the bandwidth of at least two uplink transmission units and of their transmitted radio frequency OFDM signals is different and that the uplink transmission unit is adapted to assign different connections for concurrently transmitting radio frequency OFDM signals to different sub-carriers in the same time slots or to the same or different sub-carriers in different time slots.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV
Method and apparatus for playing games between the clients of entities at different locations
InactiveUS6893347B1Low powerTelevision conference systemsSpecial service for subscribersRadio frequencyMobile phone
A method and apparatus for playing games between the clients of entities at different locations by linking multiple players together through a network using the users' mobile phones. The method includes connecting a plurality of mobile phones together through a network for playing a game, setting up a game scenario for each of the plurality of mobile phones and transmitting game signals between the plurality mobile phones across the network. At least two of the plurality of mobile phones are remotely located. The mobile phones connect to the network through a base station. A connection from a mobile phone to the network through a base station is a low power radio frequency connection. The interactive game may be interrupted when a mobile phone receives a call. The interactive game is interrupted only for the mobile phone receiving the call.
Owner:NOKIA TECHNOLOGLES OY
Semiconductor device
InactiveUS20100193785A1Low costReduce power consumptionTransistorSolid-state devicesSemiconductor packageSingle crystal
It is an object to provide a semiconductor device which has a large size and operates at high speed. A top gate transistor which includes a semiconductor layer of single-crystal and a bottom gate transistor which includes a semiconductor layer of amorphous silicon (microcrystalline silicon) are formed over the same substrate. Then, gate electrodes of each transistor are formed with the same layer, and source and drain electrodes are also formed with the same layer. Thus, manufacturing steps are reduced. In other words, two types of transistors can be manufactured by adding only a few steps to the manufacturing process of a bottom gate transistor.
Owner:SEMICON ENERGY LAB CO LTD
Location determination of low power wireless devices over a wide area
ActiveUS7502619B1Low powerLow costEnergy efficient ICTFrequency-division multiplex detailsBluetoothCellular telephone
The present invention discloses a method and system for location determination of low power wireless devices, over a wide area, utilizing a multitude of communication devices operating on a WAN (Wide Area Network) which can detect signals transmitted by said nearby low power wireless devices, and report this detection to a control station over the WAN. Said station can further locate the reporting communication device by present art methods such as “network based” or “handset based”, and consequently locate the nearby wireless device. Due to the short range nature of the wireless device transmissions, and dynamic mobility of these devices, it is crucial to establish a swift ad-hoc connection between a wireless device and a nearby communication device, still, in order to save battery power and avoid inefficient and interfering transmissions, communications between a wireless device and a communication device are not initiated unitl a sensor comprised in the wireless device detects and a communication device. In a preferred embodiment, the wireless device is Bluetooth and the communication device is a Bluetooth enabled mobile / cellular phone and the sensor detects radiation emitted by the mobile device on non Bluetooth bands.
Owner:MOBIT TELECOM
Content reproducing device, content reproducing system, automatic content receiving method, and automatic content transferring method
InactiveUS20090011709A1Easy transferReduce stepsEnergy efficient ICTAutomatic call-answering/message-recording/conversation-recordingComputer hardwareCommunication unit
Disclosed herein is a portable type content reproducing device for reproducing content data, said portable type content reproducing device including, a radio communication unit, a nonvolatile storage unit, a reproduction processing unit, a connection controlling unit, and a reception controlling unit.
Owner:SONY CORP
System and method for automatic document management
ActiveUS8996350B1Simple interfaceImprove abilitiesDigital data processing detailsRelational databasesApplication programming interfaceApplication software
A system for managing documents, comprising: interfaces to a user interface, proving an application programming interface, a database of document images, a remote server, configured to communicate a text representation of the document from the optical character recognition engine to the report server, and to receive from the remote server a classification of the document; and logic configured to receive commands from the user interface, and to apply the classifications received from the remote server to the document images through the interface to the database. A corresponding method is also provided.
Owner:AUTOFILE INC
Hearing aid system for establishing a conversation group
ActiveUS20100086152A1Small sizePower transmissionFrequency-division multiplex detailsTime-division multiplexEngineeringHearing aid
A hearing aid system adapted for establishing a conversation group with other hearing aid systems used by different users, comprises a hearing aid (1, 2, 3, 4, 5) with an associated relay device (11, 12, 13, 14, 15). The relay device is (11, 12, 13, 14, 15) adapted for wireless communication (21, 22, 23, 24, 25) with said hearing aid and for wireless communication (31, 32, 33, 34, 35) with a second hearing aid system. The relay device (11, 12, 13, 14, 15) is also adapted for receiving and displaying information about said second hearing aid systems being available for participation in said conversation group, and it comprises means for selection of said other hearing aid systems for inclusion into the conversation group. The invention further provides a method for establishing a conversation group among hearing aid users.
Owner:WIDEX AS
Non-specific sensor array detectors
InactiveUS7034677B2Easy to implementLow-powerMaterial nanotechnologyElectric signal transmission systemsSensor arrayAnalyte
Portable and wearable chemical detector devices, such as badges, that are analyte-general, rather than analyte-specific, and which provide an optimal way to notify and protect personnel against known and unknown airborne chemical hazards. The devices are advantageously low-cost, have low-power requirements, may be wearable and are designed to detect and alarm to a general chemical threat. A sensor device includes two or more sensor devices, a processing module coupled to each of the sensor devices and configured to process signals received from each of the two or more sensor devices to determine an environmental state; and a communication module that communicates information about the environmental state to a user.
Owner:SMITHS DETECTION
Intercom/wireless door bell for multi-handset telephone system
ActiveUS7738917B2Permit some movementRelatively large bandwidthGHz frequency transmissionClosed circuit television systemsDoorbellAC adapter
A multi handset telephone system with a wireless telecom / doorbell module. The telecom / doorbell module has similar electronics as a cordless handset that includes audio and RF link with a base unit. A speakerphone functionality of a wireless telecom / doorbell audio processor is used to provide an intercom audio conversation. The wireless intercom / doorbell module is battery powered that is either charged by an AC adapter or by an existing doorbell wiring. The wireless intercom / doorbell module also work in parallel with the existing bell wiring. When a page key is pressed, the module pages the telephone system and shorts the doorbell wiring to make an existing bell ring. The doorbell module is coupled with a camera.
Owner:VTECH TELECOMM
Plasma processing apparatus
ActiveUS20050160987A1Effectively emitLow powerElectric discharge tubesElectric arc lampsPlasma treatmentPlasma processing
A plasma processing apparatus includes a chamber for containing a substrate to be processed, a gas supply unit for supplying a processing gas into the chamber, and a microwave introducing unit for introducing plasma generating microwaves into the chamber. The microwave introducing unit includes a microwave oscillator for outputting a plurality of microwaves having specified outputs, and an antenna section having a plurality of antennas to which the microwaves outputted from the microwave oscillator are respectively transmitted.
Owner:COMMSCOPE TECH LLC +1
LED light fixture
InactiveUS20070247842A1Low thermal conductivityLower resistancePlanar light sourcesCeilingsInfraredElectricity
A light fixture using LEDs includes a lower skin layer possessing heat transfer properties. A circuit board is affixed to the lower skin layer, and a single LED, or a plurality of LEDs, is electrically connected to the circuit board. The single LED, or plurality of LEDs, when electrically activated, emits light through substantially around a vertical axis. The light fixture also includes a core possessing heat transfer properties that is in thermal contact with the LED and has an interior cavity for the LED. The core is affixed to the lower skin layer, and an upper skin layer, containing a window or windows over the LED or LEDs, is affixed to the core. The LEDs may be white, infrared, ultraviolet, and / or colored and may be mounted on a printed circuit board or individually.
Owner:INTEGRATED ILLUMINATION SYST
Medical signal processing system with distributed wireless sensors
InactiveUS20100049006A1High wireless link reliability/securityReduce power consumptionElectrocardiographyInertial sensorsDiseaseLine sensor
A wireless medical signal processing system for health monitoring is disclosed which achieves high wireless link reliability / security, low power dissipation, compactness, low cost and supports a variety of sensors for various physiological parameters. The system includes a medical signal processor which communicates with a wireless distributed sensor system as its peripheral for detecting physiological parameters of the person and for providing signals indicative thereof. The medical signal processor wirelessly receives the signals from the distributed wireless sensor system in a multiplexed fashion and processes the signals to provide an indication of the health of the person. The indication of health could relate to a disease state, general health or fitness level of a person. The system also includes a mobile device for receiving the indication of the health of the person to allow for a diagnosis or treatment of the person.
Owner:HMICRO
Routing in a multi-station network
InactiveUS20010036810A1Effective expansionReduce data rateSynchronisation arrangementNetwork topologiesCommunications systemHybrid system
A method of relaying data between mobile stations in a cellular communications system is provided. The system comprises a number of mobile stations and base stations. Each base station makes synchronization transmissions within its area of covers, which define a broadcast control channel for the transmission of broadcast data from the base station to mobile stations within the area of coverage. The synchronization transmissions are received at mobile stations within the area of coverage, which extracts data defining the broadcast control channel, and at least one calling channel on which mobile stations can transmit probe data to one another. The probe data is used by the mobile stations to obtain connectivity information relating to the availability of other mobile stations. The synchronization transmissions also contain data which is used to define at least one traffic channel which is used by the mobile stations to relay message data between themselves. Effectively, the method of the invention provides a hybrid system which combines conventional cellular technology with opportunistic relaying technology.
Owner:IWICS INC
Short range spread-spectrum radiolocation system and method
InactiveUS6556942B1Sufficient gross rangingLow costDirection finders using radio wavesBeacon systems using radio wavesData setTriangulation
A short range radiolocation system and associated methods that allow the location of an item, such as equipment, containers, pallets, vehicles, or personnel, within a defined area. A small, battery powered, self-contained tag is provided to an item to be located. The tag includes a spread-spectrum transmitter that transmits a spread-spectrum code and identification information. A plurality of receivers positioned about the area receive signals from a transmitting tag. The position of the tag, and hence the item, is located by triangulation. The system employs three different ranging techniques for providing coarse, intermediate, and fine spatial position resolution. Coarse positioning information is provided by use of direct-sequence code phase transmitted as a spread-spectrum signal. Intermediate positioning information is provided by the use of a difference signal transmitted with the direct-sequence spread-spectrum code. Fine positioning information is provided by use of carrier phase measurements. An algorithm is employed to combine the three data sets to provide accurate location measurements.
Owner:UT BATTELLE LLC
Liquid crystal display viewable under all lighting conditions
A liquid crystal display (LCD) viewable under all lighting conditions without excessive power consumption is described. The LCD comprises a first dichroic polarizer, a second dichroic polarizer, an anti-reflection layer positioned in front of the first dichroic polarizer and a liquid crystal cell positioned between the first dichroic polarizer and the second dichroic polarizer. In addition, the LCD comprises a backlight assembly positioned behind the second dichroic polarizer. Finally, the LCD comprises a diffusing transflector positioned between the backlight assembly and the second dichroic polarizer. The diffusing transflector comprises a diffusing element and a transflective element.
Owner:WANG RAN HONG RAYMOND +1
Method and apparatus for monitoring the RF environment to prevent airborne radar false alarms that initiate evasive maneuvers, reactionary displays or actions
InactiveUS7843375B1Accurate predictionLower false alarms without degrading system performanceCommunication jammingRadio wave reradiation/reflectionRadarFalse alarm
Rather than costly modifications to existing radars, a small, low cost radar warning receiver is used to monitor the RF environment. This add-on receiver can provide situational awareness including RF signal levels and angle of arrival, and recommend or provide antenna scanning synchronization, blanking inputs or gated reactionary outputs to or for the airborne radar. Utilization of this information can be used to reduce false alarms and improve system performance.
Owner:BAE SYST INFORMATION & ELECTRONICS SYST INTERGRATION INC
Low energy wireless proximity pairing
ActiveUS20140378056A1Power be lowerDegree of security and/or privacyPower managementTransmission systemsReal-time computingBluetooth
A method of pairing devices includes causing a Bluetooth-enabled host device and a Bluetooth-enabled peripheral device to be located proximate to each other, the Bluetooth-enabled host device comprising at least a processor, a memory and an antenna, in the Bluetooth-enabled host device, detecting advertising packets broadcast by the Bluetooth-enabled peripheral device on one or more of a plurality of advertising channels, saving a numeric indicator of each of multiple detected advertising packets, determining an average numeric indicator from the saved numeric indicators of each of the separately detected advertising packets, if the average numeric indicator exceeds a proximity threshold, determining whether a set of conditions are met, and initiating a Bluetooth device pairing sequence between the Bluetooth-enabled host device and the Bluetooth-enabled peripheral device if the set of conditions are met.
Owner:BOSE CORP
Voice transmission apparatus with UWB
InactiveUS6952483B2Reduce electromagnetic radiationImprove overall senseMicrophonesLoudspeakersTransceiverVoice communication
A voice communication device such as an earpiece that provides for ultra short range transmission of voice sound information using ultra wide band (UWB) radio communications is disclosed. According to one embodiment of the present invention, a voice communication device includes a speaker, a bone conduction sensor for sensing voice sound vibrations, and an UWB transceiver operatively connected to the speaker and the bone conduction sensor. According to another embodiment of the present invention, a voice communication device is disclosed that includes an earpiece housing, a speaker operatively connected to the earpiece housing for transducing audio, an air conduction sensor operatively connected to the housing for sensing voice sound information, a processor electrically connected to the speaker and the bone conduction sensor and disposed within the earpiece housing, and an UWB transceiver operatively connected to the processor.
Owner:BOESEN PETER V M D
Wireless Data Networking
ActiveUS20080291855A1Low powerBetter read rateEnergy efficient ICTPower managementWireless dataNetwork mapping
A meshing network comprising one full function controller (WDC) and a plurality of nodes (WDN, WSN), that is RF quiet capable with very low power consumption and the ability to quickly heal itself and create new network paths. The network uses an addressing scheme that allows for each node to not have a network map but still be able to route messages. A piping scheme allows a mesh to become a high throughput network. A sensor rail protocol definition allows sensor devices to connect to nodes and route messages through the network.
Owner:RAYTHEON CO
Routing in a multi-station network
InactiveUS6785510B2Effective expansionReduce data rateSynchronisation arrangementNetwork topologiesCommunications systemHybrid system
A method of relaying data between mobile stations in a cellular communications system is provided. The system comprises a number of mobile stations and base stations. Each base station makes synchronization transmissions within its area of covers, which define a broadcast control channel for the transmission of broadcast data from the base station to mobile stations within the area of coverage. The synchronization transmissions are received at mobile stations within the area of coverage, which extracts data defining the broadcast control channel, and at least one calling channel on which mobile stations can transmit probe data to one another. The probe data is used by the mobile stations to obtain connectivity information relating to the availability of other mobile stations. The synchronization transmissions also contain data which is used to define at least one traffic channel which is used by the mobile stations to relay message data between themselves. Effectively, the method of the invention provides a hybrid system which combines conventional cellular technology with opportunistic relaying technology.
Owner:IWICS INC
Dual-mode phone using GPS power-saving assist for operating in cellular and WiFi networks
InactiveUS20060063560A1Low powerReduce power consumptionEnergy efficient ICTWireless network protocolsWide areaTransceiver
A dual-mode mobile station for accessing a wide-area wireless network according to a first wireless protocol and a small-area wireless network according to a second wireless protocol. The dual-mode mobile station comprises a controller that switches the dual-mode mobile station between a first mode in which the dual-mode mobile station communicates with the wide-area wireless network and a second mode in which the dual-mode mobile station communicates with the small-area wireless network. The controller switches the dual-mode mobile station between the first and second modes depending on a distance between the dual-mode mobile station and an access point of the small-area wireless network. When the dual-mode transceiver enters the first mode, the controller turns off a transceiver that operates in the second mode in order to save power.
Owner:SAMSUNG ELECTRONICS CO LTD
Power efficient receiver
InactiveUS6028887AReduce power consumptionShorten the timePosition fixationBeacon systemsPower efficientDirect-sequence spread spectrum
A direct sequence spread spectrum receiver samples an incoming signal and stores the sample in memory. Power is then inhibited to the tuner of the receiver to minimize power consumption. The signal sample may be read from memory when necessary to process the signal without further signal acquisition. Power to other receiver sections may be selectively controlled to minimize power consumption. Such a receiver is useful in global positioning satellite (GPS) signal processing where the receiver has a limited power supply.
Owner:GENERAL ELECTRIC CO
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