Patents Issued in May 27, 2014
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Patent number: 8736441Abstract: A system level scheme for networking of implantable devices, electronic patch devices/sensors coupled to the body, and wearable sensors/devices with cellular telephone/mobile devices, peripheral devices and remote servers is described.Type: GrantFiled: November 27, 2013Date of Patent: May 27, 2014Assignee: IP Holdings, Inc.Inventors: Raman K. Rao, Sanjay K. Rao
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Patent number: 8736442Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for automatically generating and updating a list of previously visited locations that are popular to a user. The method includes receiving a data point belonging to a series of data points generated from periodically sampling a position of an electronic device, automatically determining if the data point represents a destination of the electronic device based upon metadata of the data point, and automatically updating a visited locations list based upon the data point, the visited locations list including an entry associated with a previously visited location of the electronic device, wherein the data point is combined with the entry when the position associated with the data point and the previously visited location are correlated.Type: GrantFiled: June 8, 2011Date of Patent: May 27, 2014Assignee: Apple Inc.Inventor: Ralph Zazula
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Patent number: 8736443Abstract: A system and method are disclosed for delivering an alert from a mobile alerting system using distributed notification delivery. The method uses a mobile alerting system to receive an alert initiation request from an alert operator, where the alert initiation request includes metadata of an alert to be delivered. The method extracts the metadata from the alert initiation request and persistently stores the extracted metadata in a first storage place on the mobile alerting system. The method further makes an alert initiation request with one or more remote communication systems based on the extracted metadata of the alert. The method securely delivers the alert initiation request and extracted metadata to the remote communication system, which stores the metadata transiently in a second place, delivers the alert to multiple alert recipients tracks delivery progress and reports the collected alert responses back to the mobile alerting system.Type: GrantFiled: November 9, 2011Date of Patent: May 27, 2014Assignee: AtHoc, Inc.Inventors: Guy Miasnik, Aviv Siegel
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Patent number: 8736444Abstract: A system for wireless heat detection is disclosed. The system includes one or more heat sensors that convert sensed heat energy into electrical power for transmitting an alarm signals. A remote system may trigger an alarm based on the received alarm signals. The heat sensors may be placed at discrete locations within an interior of a building to monitor a condition of the infrastructure of the building. The remote system can include a communications module for receiving the signal and transmitting an alarm signal to an associated fire panel. The fire panel may analyze the signal, as well as signals generated from adjacent sensors, to determine whether a fire condition exists within a building. Appropriate notification devices may then be activated based on the determination. Other embodiments are disclosed and claimed.Type: GrantFiled: September 30, 2011Date of Patent: May 27, 2014Assignees: Tyco Fire & Security GmbH, Sensormatic Electronics, LLCInventors: Daniel G. Farley, Paul B. Rasband
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Patent number: 8736445Abstract: An object locating system comprising a first transmitter-receiver unit including a first transmitter for selectively transmitting a first and/or a second search signal, a first receiver for receiving a third search signal and a first signaling element coupled to the first receiver for issuing a first alarm when the third search signal is received by the first receiver; a second transmitter-receiver unit including a second transmitter for selectively transmitting the first and/or the third search signal, a second receiver for receiving the second search signal and a second signaling element coupled to the second receiver for issuing a second alarm when the second search signal is received by the second receiver; a receiver unit including a third receiver for receiving the first search signal and a third signaling element coupled to the third receiver for issuing a third alarm when the first search signal is received by the third receiver.Type: GrantFiled: March 9, 2010Date of Patent: May 27, 2014Assignee: Excellence ChryslerInventors: Cynthia Bourdeau, Line Quintal
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Patent number: 8736446Abstract: Since a sensor signal intermitted on the basis of a sensor signal including an abnormality detection signal, detected as a result of a persistence of an abnormal condition of a security sensor, is generated and an intermitted output signal in dependence on an intermitted sensor signal input is transmitted from a wireless transmitter 17 to a receiver 18, a condition in which the intermitted output signal can be transmitted from the wireless transmitter 17 to the receiver 18 can be retained even though the wireless transmitter 17 is of a type capable of transmitting an output signal in the form of, for example, one pulse on the basis of the signal input, and it is therefore possible for the side of the receiver 18 to recognize assuredly the persistence of the abnormal condition.Type: GrantFiled: January 6, 2009Date of Patent: May 27, 2014Assignee: Optex Co., Ltd.Inventors: Koji Hayashide, Katsutoshi Tatsuoka
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Patent number: 8736447Abstract: A system for monitoring residents of a health care facility including a plurality of tamper-resistant resident monitoring devices, each of the devices being uniquely associated with a resident of the facility, a multiplicity of device detectors operative to communicate with the monitoring devices and a computer subsystem operative to communicate with the plurality of tamper-resistant resident monitoring devices via the multiplicity of device detectors, and to thereby monitor the residents of the facility.Type: GrantFiled: December 20, 2011Date of Patent: May 27, 2014Assignee: Techip International LimitedInventors: Dov Ehrman, Eyal Dov Vardi
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Patent number: 8736448Abstract: A notebook computer stand includes a base and an anti-theft circuit received in the base. A number of supporting pads are positioned on the top surface of the base, to support a notebook computer. The anti-theft circuit includes a pressure sensitive switch, an alarm, a control switch, and a battery. The pressure sensitive switch, the alarm, and the control switch are connected in series. The pressure sensitive switch is positioned on one of the supporting pads. When the notebook computer is placed on the top surface, the pressure sensitive switch is open. The pressure sensitive switch is closed when not under the pressure applied by the weight of the notebook computer, and the battery supplies power to the alarm, the alarm works, when the control switch is closed.Type: GrantFiled: February 16, 2012Date of Patent: May 27, 2014Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventor: Xue-Yun Chen
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Patent number: 8736449Abstract: An anti-effraction and antitheft system (1) of an electromechanical type for photovoltaic panels (8) and components of electrical plants and systems in general, which has the purpose of rendering unserviceable and/or unlikely to be re-usable, in the case of theft or tampering, of the photovoltaic panels (8). The system (1) is based upon the combination of functions of connection and electrical and electronic functions; namely, it is based upon at least one electromechanical element or connector (24), an electronic unit or management card (21) and a central system (39) with georeferencing, communication, and signalling functions.Type: GrantFiled: December 14, 2010Date of Patent: May 27, 2014Inventor: Antonio Sacchetti
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Patent number: 8736450Abstract: An apparatus to deter theft of a movable product is provided. In one aspect, the apparatus comprises a housing, a plug connected to the housing to insert into an electrical socket to receive power, a bracket connected to the housing and having an opening to receive a locking cable while the opening of the bracket protrudes from the housing. A switch, within the housing, responsive to protrusion of the opening of the bracket from the housing to receive the locking cable. An electrical circuitry, within the housing, responsive to the switch being in a first state, and absence of power at the plug to sound an alarm, and responsive to the switch being in a second state or the presence of power at the plug to prevent sounding of the alarm.Type: GrantFiled: April 4, 2012Date of Patent: May 27, 2014Assignee: International Business Machines CorporationInventors: Douglas S. Brown, John F. Kelley, Todd Seager
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Patent number: 8736451Abstract: In order to detect attempted theft, the time that a shopping cart remains in a self-scanning zone in a self-checkout line is monitored. If a certain duration is not met between the time at which the region of the self-scanning register is entered and the exit is passed, an alarm is triggered.Type: GrantFiled: February 2, 2010Date of Patent: May 27, 2014Inventors: Franz Wieth, Horst Sonnendorfer
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Patent number: 8736452Abstract: A chipless RFID tag system having a transmitter sending an input signal and a tag substrate. An ID generation circuit on the tag relies on microstrip transmission line patterns which are pre-designed to generate a unique code. The ID generating circuit may be designed based upon the transmission line properties, including signal delay, and/or reflection, and/or phase change. The tag may be formed on a flexible substrate having at least one microstrip and the microstrip having a first portion with a first impedance and a second portion with a second impedance different from the first impedance. The tag may further include a microstrip antenna for communication with the transmitter and a receiver system. The tag may also include sensors for detection of desired substances of interest. The system may further include a receiver detecting at least two reflections from an interface of first and second impedances and identifying relative time domain positions of the reflections to one another.Type: GrantFiled: March 13, 2008Date of Patent: May 27, 2014Assignee: Louisiana Tech University Research Foundation; a division of Louisiana Tech University Foundation, Inc.Inventors: Khodadad Varahramyan, Mangilal Agarwal, Sudhir Shrestha, Jeevan Kumar Vemagiri, Aravind Chamarti, Sireesha Ramisetti, Mercyma Dee Balachandran
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Patent number: 8736453Abstract: One or more servers and hospital beds are connected to a healthcare network. At least one of the servers includes an event notification module that operates to receive patient EMR information and patient bed configuration information. The patient EMR information is comprised of a patient fall risk profile. At least one of the patient beds includes sensors that transmit messages which include information about the current bed configuration state to the event notification module. The event notification module uses information included in the patient fall risk profile and current bed configuration information to determine whether a patient is at risk of fall out of their bed, and if the patient is at risk, generates an alert message that is sent to a call station or hospital worker.Type: GrantFiled: July 17, 2012Date of Patent: May 27, 2014Assignee: Globestar Systems, Inc.Inventors: Jason Wilson, Richard Mayoras
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Patent number: 8736454Abstract: A microprocessor controlled security tag and accompanying security system is described. The tag generally includes a housing having external contacts to interface with elongated contacts on a connecting band. The band forms a complex impedance circuit with a patient's limb that allows detection features such as removal and band compromise. A microprocessor and related circuitry as well as a transmitter and receivers are enclosed in the housing. The tag is adapted to communicate inductively with an activator/deactivator unit as well as a tag programmer that updates and changes tag features in the tag firmware. The overall system further includes a hub to receive the data from a plurality of tags in the system. The tag can also communicate with a phased multiple antenna that sends signals to the tag.Type: GrantFiled: April 8, 2013Date of Patent: May 27, 2014Assignee: Innovative Control Systems, Inc.Inventors: Gregory Kron, Richard E. Halbach, James Stoffer, Mark J. Kieckhefer
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Patent number: 8736455Abstract: A fluid volume alarm system is presented. The alarm system has a container for storing fluid, and alarm module coupled to the container for notifying a user or observer that the fluid within the container has reached a predetermined level. The container has at least one exterior wall and defines an interior volume for at least temporary storage of fluid. In one aspect, there are at least two electrodes disposed on an interior portion of the exterior wall of the container and positioned at a position thereon an interior portion of the exterior wall corresponding to a predetermined fluid level at which it is desirable to receive an alarm. The system also has an alarm module configured to alert the practitioner that the fluid has met or has exceeded the predetermined level.Type: GrantFiled: June 14, 2010Date of Patent: May 27, 2014Inventors: Todd A. Linsenmeyer, Joseph V. DiTrolio, Dorothy F. Linsenmeyer
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Patent number: 8736456Abstract: A method and instrument capable of producing an audible tick that increases with detected gas concentrations, is suitable for indicating relatively low levels of gas concentrations, and enables the adjustment of the tick rate to provide an accurate audible indication of gas levels at higher concentrations. The method and instrument entail sensing the presence of the gas and generating an analog sensor output based on a concentration of the gas in the environment, and then processing the analog sensor output through an audio circuitry to generate therefrom an audible tick having a frequency in proportion to the analog sensor output. The processing step includes the use of an analog control loop signal to selectively increase and decrease the frequency of the audible tick.Type: GrantFiled: July 14, 2010Date of Patent: May 27, 2014Assignee: SENSIT TechnologiesInventor: Jan Krcma
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Patent number: 8736457Abstract: There is provided an information processing apparatus including a current waveform acquisition unit which acquires a current waveform from when a predetermined electric appliance is used, a communication unit which transmits the acquired current waveform of the electric appliance to a server apparatus, and receives control information on a character corresponding to the electric appliance from the server apparatus, and a display control unit which performs control of causing a predetermined display unit to display the character based on the received control information on the character.Type: GrantFiled: June 2, 2012Date of Patent: May 27, 2014Assignee: Sony CorporationInventors: Takashi Hasuo, Kohtaro Sabe, Masato Ito, Yoshiyuki Kobayashi
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Patent number: 8736458Abstract: A system includes a camera, a weigh-in-motion scale, and a processor. The camera is configured to capture one or more images of a vehicle as the vehicle goes over the weigh-in-motion scale. The weigh-in-motion scale is configured to generate one or more weight measurements of the vehicle as the vehicle goes over the weigh-in-motion scale. The processor is operatively coupled to the camera and the weigh-in-motion scale. The processor is configured to determine an acceleration of at least a portion of the vehicle based at least in part on the one or more images of the vehicle. The processor is also configured to adjust at least one of the one or more weight measurements based on the acceleration.Type: GrantFiled: April 26, 2011Date of Patent: May 27, 2014Assignee: Signature Research, Inc.Inventors: William R. Reynolds, James E. Hertel, Keith R. Rutkowski
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Patent number: 8736459Abstract: A control system and a method for a back-and-forth cable system is provided. The cable system includes a running cable, a first pulley and a second pulley, the pulleys being located at both ends of a course for guiding the running cable. A controllable motor assembly drives of the pulleys and a carrier is connected to the running cable, for pulling or towing a boarder. The control system includes first and second tracking devices to generate first and second tracking signal indicative of the rotation of the pulleys. Two limit positions along the course are stored in storing means and a controller has inputs to receive the first and the second tracking signals and inverts rotation of the controllable motor assembly when the two positions of the carrier detected go beyond either one of the two limit positions.Type: GrantFiled: February 15, 2011Date of Patent: May 27, 2014Inventor: Jean-Michel Ouellet
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Patent number: 8736460Abstract: A method of reporting information from a meter interface unit to a receiving device in which a data packet is transferred from the meter interface unit containing meter readings, which are associated with an indicator of the elapsed time since the reading was taken. The receiving device compares this elapsed time value with the actual elapsed time, based upon the internal clock of the receiving device, in order to determine any inaccuracies in the clock of the meter interface unit. In another embodiment, the data packet includes at least two nonsequential meter readings, separated by a multiplicity of reading intervals, on a rolling basis, such that data will not be lost as a result of a temporary obstruction that interferes with the transmission or receipt of meter readings.Type: GrantFiled: April 3, 2012Date of Patent: May 27, 2014Assignee: Neptune Technology Group, Inc.Inventors: William J. Brennan, Jr., Joseph Quentin Easterling
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Patent number: 8736461Abstract: The present invention provides a control method of traffic sign by utilizing vehicular network which can be applied to an intersection. The method comprises: a passing rate calculating step, calculating a passing rate according to a driving parameter; a vehicular movement type determining step, determining a vehicular movement type of a lane at the intersection according to the driving parameter; and a signal determining step, determining next signal according to the passing rate and the vehicular movement type.Type: GrantFiled: June 25, 2012Date of Patent: May 27, 2014Assignee: National Tsing Hua UniversityInventors: Pranay Sharma, Lien-Wu Chen, Yu-Chee Tseng
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Patent number: 8736462Abstract: A system and method for traffic information delivery may be implemented as a static network device for sharing information with network nodes. The system includes a processor in communication with a transceiver and memory, the memory containing code that when executed by the processor effects the method steps for determining an occurrence of a traffic incident within a defined distance from the device, establishing communication with a network node, receiving a device identifier over a public network from the network node, the device identifier based on a user-configurable parameter and a non-user-configurable parameter of the network node, establishing in response to the device identifier matching an authorized device identifier corresponding to a known network node, a secure private network with the network node, and sending information about the traffic incident to the network node via the secure private network.Type: GrantFiled: June 10, 2010Date of Patent: May 27, 2014Assignee: Uniloc Luxembourg, S.A.Inventor: Craig Stephen Etchegoyen
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Patent number: 8736463Abstract: Aspects of the disclosure relate generally to maneuvering autonomous vehicles. Specifically, the vehicle may use a laser to collect scan data for a section of roadway. The vehicle may access a detailed map including the section of the roadway. A disturbance indicative of an object and including a set of data points data may be identified from the scan data based on the detailed map. The detailed map may also be used to estimate a heading of the disturbance. A bounding box for the disturbance may be estimated using the set of data points as well as the estimated heading. The parameters of the bounding box may then be adjusted in order to increase or maximize the average density of data points of the disturbance along the edges of the bounding box visible to the laser. This adjusted bounding box may then used to maneuver the vehicle.Type: GrantFiled: January 30, 2012Date of Patent: May 27, 2014Assignee: Google Inc.Inventors: Jiajun Zhu, Dirk Haehnel
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Patent number: 8736464Abstract: A present novel and non-trivial system and method for presenting a dynamic checklist are disclosed. The system may be comprised of one or more vehicular sources of internal system data and a checklist generating processor, and a presentation unit such as a visual display unit. An automated response corresponding to each checklist item appearing on the dynamic checklist may be determined after real-time internal system data is received and applied to an acceptability configuration defined by a manufacturer and/or end-user. Then, a presentation data set representative of a dynamic vehicular checklist and comprised of each checklist item and its corresponding automated response could be generated and provided to a presentation unit which presents the dynamic checklist, whereby the user is presented with acceptability information of one or more of the checklist items. Additionally, the dynamic checklist may receive and present external data, and may provide for pilot interaction.Type: GrantFiled: September 2, 2010Date of Patent: May 27, 2014Assignee: Rockwell Collins, Inc.Inventor: Timothy S. Downs Mullen
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Patent number: 8736465Abstract: A system and method for displaying additional traffic information beyond that received from an ADS-B or other transponder communication. Such additional traffic information may be displayed on a display screen within a cockpit, and may include such things as an aircraft's make, model, manufacturer, or other information. The additional information may be displayed as text, or one or more pictures, icons, or symbols that correspond to this additional information, or any combination of text and such items. The additional information may be determined from one or more databases that correlate information received in the transponder communication to the additional information that is not contained within the transponder communication.Type: GrantFiled: January 16, 2012Date of Patent: May 27, 2014Assignee: L-3 Communications Avionics Systems, Inc.Inventors: Steve M. Rutherford, Dennis Polischuk
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Patent number: 8736466Abstract: The aircraft tire pressure loop link is formed of first and second single metal loops connected by parallel spaced apart metal shafts, and provides for coupling a magnetic field between a wheel hub coil and a tire pressure sensor coil to provide electromagnetic communication between a control unit connect to the wheel hub coil and a tire pressure sensor connected to the tire pressure sensor coil. The current induced in the first single metal loop travels the distance from the edge of the wheel axle coil to the periphery of the of the wheel rim to the second single metal loop, which generates the flux in the tire pressure sensor receiver coil necessary to power the tire pressure sensor.Type: GrantFiled: October 8, 2012Date of Patent: May 27, 2014Assignee: Eldec CorporationInventors: Jeff Lamping, Mark Finefrock
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Patent number: 8736467Abstract: The present invention first provides adaptive binarization in which a binarizer outputs binary symbol in length, which is variable adaptively to the probability of the source. When the probability is low, it is desirable to decrease the length of the binary symbols to improve the efficiency of arithmetic coding and reduce the complexity of coding calculation. On the other hand, when the probability is high, it is desirable to increase the length of the binary symbols to improve the overall process speed of a decoder. Specifically, a binarizer, according to the present invention, binarizes mapping unit values from a non-binary symbol into binary symbols. The number of binary symbols is inversely proportional to the size of the mapping unit value. In the present invention, the mapping unit value is made variable adaptively to the probability. Thus, the number of binary symbols from the binarizer is also variable adaptively to the probability parameter.Type: GrantFiled: April 8, 2011Date of Patent: May 27, 2014Assignee: NTT DoCoMo, Inc.Inventor: Frank Jan Bossen
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Patent number: 8736468Abstract: A method and system include a converter such as an analog-to-digital converter (“ADC”) and a controller. The converter is configured to receive a sensor signal, indicative of a physical measured quantity, and generate an output signal based on the sensor signal and the voltage reference. The converter is further configured to alternately receive a calibration voltage in lieu of the sensor signal and generate the output signal based on the calibration voltage and the voltage reference. The controller is configured to compare the output signal based on the calibration voltage and the voltage reference with an expected value of the output signal based on the calibration voltage and an assumed value of the voltage reference to detect variation of the voltage reference, and to compensate the output signal based on the sensor signal and the voltage reference as a function of the detected variation of the voltage reference.Type: GrantFiled: November 16, 2012Date of Patent: May 27, 2014Assignee: Lear CorporationInventors: Antoni Ferre Fabregas, David Gamez Alari
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Patent number: 8736469Abstract: A system for minimizing variation of a voltage reference includes a voltage reference generator and a power converter. The voltage reference generator is configured to generate a voltage reference from a supply voltage. The power converter, such as a flyback converter, is configured to supply an adjustable supply voltage to the voltage reference generator. The voltage reference generator generates the voltage reference from the adjustable supply voltage.Type: GrantFiled: November 13, 2012Date of Patent: May 27, 2014Assignee: Lear CorporationInventors: Antoni Ferre Fabregas, David Gamez Alari
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Patent number: 8736470Abstract: A reference A/D conversion unit is connected in parallel to an input common to a time-interleaved A/D converter to be a calibration target, and the output of each unitary A/D conversion unit which makes up the time-interleaved A/D converter is calibrated in a digital region by using a low-speed high-resolution A/D conversion result output from the reference A/D conversion unit. Also, fCLK/N (fCLK represents an overall sampling rate of the time-interleaved A/D converter, and N is relatively prime to the number of unitary A/D conversion units connected in parallel M) is set as the operation clock frequency of the reference A/D conversion unit. Samplings of all unitary A/D conversion units can be sequentially synchronized with the sampling of the reference A/D conversion unit, and the operation clock frequency of the reference A/D converter can be made N times slower than the overall sampling rate of the time-interleaved A/D converter.Type: GrantFiled: December 28, 2011Date of Patent: May 27, 2014Assignee: Hitachi, Ltd.Inventors: Takashi Oshima, Taizo Yamawaki, Tomomi Takahashi
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Patent number: 8736471Abstract: A calibration control circuit is provided for calibrating a stage in a pipeline analog-to-digital converter (ADC). The stage includes an analog-to-digital subconverter (ADSC) and a multiplying digital-to-analog converter (MDAC). The calibration control circuit includes circuitry coupled to comparators in the ADSC to force the comparators to output a predetermined digital output signal set by a calibration control signal when the ADC is in a calibration mode to thereby control reference switches in an analog multiplexer (AMUX) to selectively apply reference voltages to capacitors in the MDAC to obtain a predetermined stage residue signal.Type: GrantFiled: August 22, 2012Date of Patent: May 27, 2014Assignee: Hittite Microwave CorporationInventor: Bjornar Hernes
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Patent number: 8736472Abstract: A volume adjusting circuit which converts a digital audio signal to an analog signal by a D/A converter and outputs the analog signal includes: a first gain variable circuit unit which controls a gain of the digital audio signal; a second gain variable circuit unit which controls a gain of the analog signal output from the D/A converter; a storage unit which stores gain setting value; and a control unit which controls the gain of the first gain variable circuit unit and the gain of the second gain variable circuit unit based on the gain setting value stored in the storage unit, wherein the storage unit and the control unit are shared in controlling the first gain variable circuit unit and in controlling the second gain variable circuit unit.Type: GrantFiled: October 24, 2012Date of Patent: May 27, 2014Assignee: Ricoh Company, Ltd.Inventor: Masayuki Doi
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Patent number: 8736473Abstract: A low power, high dynamic range sigma-delta modulator comprises a quantizer followed by a digital integrator for generating an integrated digital signal from a quantized signal. The output of the digital integrator is coupled to a digital-to-analog converter in the feedback loop of the sigma-delta modulator.Type: GrantFiled: August 16, 2010Date of Patent: May 27, 2014Assignee: NXP, B.V.Inventors: Carel Dijkmans, Robert van Veldhoven, Ben Kup, Leon van der Dussen, Harry Neuteboom
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Patent number: 8736474Abstract: A delta-sigma modulator includes: a loop filter for processing an analog input signal and a feedback signal to generate a filtered signal; a noise coupler operable to generate a noise coupled signal based on the filtered signal and the feedback signal; a quantizer for quantizing the noise coupled signal to generate a digital output signal; and a digital-to-analog converter converting the digital output signal to the feedback signal. The noise coupler includes an amplifier that has an inverting input terminal receiving a difference between the filtered signal and the feedback signal, and a non-inverting output terminal outputting the noise coupled signal, and a capacitor coupled between the inverting input terminal and the non-inverting output terminal of the amplifier.Type: GrantFiled: March 18, 2013Date of Patent: May 27, 2014Assignee: Richtek Technology Corp.Inventor: Chih-Hsien Wang
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Patent number: 8736475Abstract: A FIRDAC with a return-to-zero or return-to-open drive uses multiple DACs receiving delayed copies of a digital input data signal to reduce thermal noise and intersymbol interference to produce a summed analog output. The SNR of sigma-delta ADCs using current-source-based DACs is significantly limited by the thermal noise of the DAC current sources. DACs using a switched voltage connected via a resistor or other passive element are quieter, but in a non-return-to-zero configuration tend to suffer from intersymbol interference if used at GHz clock frequencies. The intersymbol interference can be avoided by using a return-to-zero or return-to-open drive using multiple DACs clocked on successive half clock cycles (a finite-impulse-response DAC).Type: GrantFiled: October 8, 2012Date of Patent: May 27, 2014Assignee: Broadcom CorporationInventor: Jeffrey Harrison
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Patent number: 8736476Abstract: A technique includes selectively enabling a first sequence of unit elements of a plurality of unit elements of a digital-to-analog converter to convert a digital code to a plurality of analog signals in response to a plurality of control signals. Individual control signals of the plurality of control signals and individual analog signals of the plurality of analog signals correspond to respective unit elements of the plurality of unit elements. The technique includes generating the plurality of control signals based on the digital code, a random digital code having a number of bits based on a feedback signal, and an indicator of a second sequence of unit elements of the plurality of unit elements enabled in response to a prior digital code.Type: GrantFiled: October 31, 2012Date of Patent: May 27, 2014Assignee: Silicon Laboratories Inc.Inventors: Xue-Mei Gong, Douglas F. Patorello
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Patent number: 8736477Abstract: This disclosure describes techniques and apparatuses for low-memory-usage arbitrary waveform representation or generation. These techniques and/or apparatuses enable representation and/or generation of arbitrary waveforms using less memory than many current techniques, thereby reducing costs or memory size. Further, in some embodiments the techniques and apparatuses generate arbitrary waveforms without using processor resources.Type: GrantFiled: November 5, 2013Date of Patent: May 27, 2014Assignee: Marvell World Trade Ltd.Inventors: Jerry A. Marshall, Jr., Roger N. Switzer
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Patent number: 8736478Abstract: A digital-to-analog converter (DAC) has a pulse-width encoder that generates a charging pulse having a pulse width proportional to the DAC's digital input value. The charging pulse controls a charging switch that selectively connects a current source to a capacitor for the duration of the charging pulse. At the end of the charging pulse, a voltage corresponding to the charge stored in the capacitor forms the DAC's analog output signal. Such DACs can be configured (1) with negative-gain amplifiers across the capacitor to form a negative feedback loop, (2) with multiple parallel current sources, and/or (3) in differential architectures.Type: GrantFiled: March 9, 2012Date of Patent: May 27, 2014Assignee: LSI CorporationInventors: James A. Bailey, Abhishek Duggal
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Patent number: 8736479Abstract: A system for performing analog-to-digital conversion comprises a sampling unit that generates multiple digital samples from an analog input signal at each recurrence of a periodic interval, and a processing unit that combines the digital samples to produce a digital output signal. In certain embodiments, the sampling unit comprises multiple analog-to-digital converters arranged in parallel, and the processing unit comprises a digital signal processor that detects outliers in the digital samples and averages any non-outliers among the digital samples to generate the digital output signal.Type: GrantFiled: October 3, 2011Date of Patent: May 27, 2014Assignee: Agilent Technologies, Inc.Inventor: John Patrick Keane
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Patent number: 8736480Abstract: An apparatus and method of successive approximation analog-to-digital conversion for receivers comprising that during a sample mode, connecting an array of capacitors to a plurality of sampling switches coupled to a plurality of amplified input signals, and during a conversion mode, connecting in common the array of capacitors to a comparator and isolating the array of capacitors from the plurality of sampling switches. Additionally, filtering is done by the summation of samples at phase offsets.Type: GrantFiled: January 11, 2013Date of Patent: May 27, 2014Assignee: Intel CorporationInventors: Nicholas P. Cowley, Isaac Ali, Viatcheslav I. Suetinov, Keith Pinson
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Patent number: 8736481Abstract: A method for communicating signals in an ultra high bandwidth system that compensates for carrier frequency offset is provided. A baseband transmit signal having a plurality of data bits is generated. The baseband transmit signal is upconverted to a radio frequency (RF) transmit signal using a first local oscillator signal having a first carrier frequency. An offset cancellation for the offset between the first carrier frequency and a second carrier frequency for a second local oscillator signal that is used to downconvert an RF receive signal is calculated. The offset cancellation is applied to a plurality of phase rotators, and the RF transmit signal is transmitted over a phased array.Type: GrantFiled: October 28, 2011Date of Patent: May 27, 2014Assignee: Texas Instruments IncorporatedInventors: Nirmal C. Warke, Srinath Hosur, Venugopal Gopinathan
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Patent number: 8736482Abstract: The present invention provides a system and method for aircraft to determine own position and navigate using a navigation heartbeat signal broadcast on a DME uplink and/or a Mode-S uplink frequency. The present invention enables deep integration between the existing navigation systems (DME interrogation-reply ranges and GPS/WAAS raw TDOA or pseudo range measurements) and the DME heartbeat TDOAs or Mode-S heartbeat TDOAs to provide a highly accurate navigation positioning capability and provide necessary backup capability in lieu of GPS to maintain the necessary RNP/RNAV capability and avoid degrading aircraft operational safety.Type: GrantFiled: July 19, 2010Date of Patent: May 27, 2014Assignee: Saab Sensis CorporationInventors: Ryan Haoyun Wu, Marc J. Viggiano
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Patent number: 8736483Abstract: A collision avoidance apparatus capable of executing an appropriate vehicle control in order to avoid a collision between an own vehicle and a movable object is provided.Type: GrantFiled: November 27, 2009Date of Patent: May 27, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Koji Takeuchi
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Patent number: 8736484Abstract: A system and method for increasing the effective angular resolution of a multi-function phased array radar system is provided. The system is operative to simultaneously transmit a plurality of overlapping sub-beams covering a representative central beam. A de-convolution process is applied to received return signals. The process includes determining the reflectivity within sub-beamwidth resolution cells defined by the overlapping sub-beams. Generated sub-beamwidth data provides the radar system with an effective angular resolution beyond that of any single transmitted beam.Type: GrantFiled: August 11, 2010Date of Patent: May 27, 2014Assignee: Lockheed Martin CorporationInventors: Kai-Bor Yu, Manuel F. Fernandez, Svetlana M. Bachmann
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Patent number: 8736485Abstract: A method for direction finding by means of monopulse formation in a radar system with electronically controlled group antenna and analog beam shaping of sum and difference channels, a self-test of the antenna being carried out to identify failed receiving elements, and the result of the self-test going directly into the monopulse formation and the test thereby being error corrected. The result of the self-test is converted into correction values that, independently of the antenna viewing direction, are combined with those from the sum channel signal and the difference channel signals of the antenna.Type: GrantFiled: November 22, 2011Date of Patent: May 27, 2014Assignee: EADS Deutschland GmbHInventor: Robert Schneider
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Patent number: 8736486Abstract: An imaging system for generating a three dimensional image of tissue of a patient is provided. The imaging system comprises of a transmitter, receiver, antenna system and a display element to form a synthetic aperture radar system that displays a three dimensional view of the tissue. The SAR system has been configured to operate in the near field as opposed to current equipment which can only perform satisfactorily in the far field. A calibration technique has been utilized that allows the system to perform as well as other systems that operate using far field techniques but allows for a much simpler, cost effective system.Type: GrantFiled: December 23, 2008Date of Patent: May 27, 2014Assignee: Interstitial, LLCInventors: James L. Stolpman, Hans-Joachim Fabry, Todd R. Henry
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Patent number: 8736487Abstract: The present invention is related to location positioning systems, and more particularly, to a method and apparatus for making accuracy improvements to a GPS receiver's navigation calculations. According to a first aspect, the invention includes maintaining a table of height attributes for major cities and urban areas around the world (contour table) in the GNSS chipset. The information in the table preferably includes latitude, longitude of the city along with height attributes of those cities, such as the average, min, max height and region boundary etc. Additional information such as average gradient could also be saved in the table. According to further aspects, when GPS signals are degraded in environments such as urban canyons, the height information can be obtained from the table and used to improve the navigation solution.Type: GrantFiled: September 21, 2011Date of Patent: May 27, 2014Assignee: CSR Technology Inc.Inventors: Shreeram Jambulingam, Mangesh Chansarkar
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Patent number: 8736488Abstract: A database provides base station almanac information pertaining to more than one network mode of communication. A wireless device accesses this database through a centralized server or network, or via the base station, base station controller or the like, with which it is currently communicating.Type: GrantFiled: November 24, 2009Date of Patent: May 27, 2014Assignee: QUALCOMM IncorporatedInventor: Leonid Sheynblat
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Patent number: 8736489Abstract: To provide an art that can improve a performance of a GNSS receiver. A GNSS receiver 100 includes a receiver 1, a navigation message acquiring unit 3, a navigation message processor 5, and a calculator 6. The receiver 1 receives signals from satellites. The navigation message acquiring unit 3 acquires predetermined information in navigation messages contained in the signals received by the receiver. The navigation message processor 5 outputs either one of the same kind of information in the plural different kinds of navigation messages, which is acquired by the navigation message acquiring unit 3. The calculator 6 performs a calculation based on the information outputted from the navigation message processor 5.Type: GrantFiled: May 27, 2010Date of Patent: May 27, 2014Assignee: Furuno Electric Company LimitedInventors: Yoji Goto, Katsuo Yamada, Naomi Fujisawa, Hiraku Nakamura
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Patent number: 8736490Abstract: The subject matter disclosed herein relates to receiving one or more SPS signals at two or more physically separated antennae. In an aspect, signals from the physically separated antennae may be downconverted into complex digital signals that may undergo further processing to improve one or more performance metrics related to position estimation operations, for example.Type: GrantFiled: February 27, 2012Date of Patent: May 27, 2014Assignee: QUALCOMM IncorporatedInventors: Emilija M. Simic, Douglas Neal Rowitch, Sundar Raman