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Carrier Frequency patents



      
           
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Date/App# patent app List of recent Carrier Frequency-related patents
04/17/14
20140107533
 Ultrasound neuromodulation treatment of attention deficit hyperactivity disorder patent thumbnailUltrasound neuromodulation treatment of attention deficit hyperactivity disorder
Disclosed are methods and systems and methods for non-invasive neuromodulation using ultrasound to treat attention deficit hyperactivity disorder. The neuromodulation can produce acute or long-term effects.
04/17/14
20140106774
 Second node, positioning node and methods therein patent thumbnailSecond node, positioning node and methods therein
Some embodiments herein disclose a method in a second node (12,13) for performing a positioning measurement on at least uplink signals transmitted by a wireless device (10) served by a first node (12) in a wireless communication network (1). The second node (12,13) obtains information related to a non-contiguous uplink configuration associated with a carrier frequency, wherein the non-contiguous uplink configuration further comprises one or more multi-cluster uplink transmissions from the wireless device (10).
04/17/14
20140106669
 Carrier frequency variation for device detection in near-field communications patent thumbnailCarrier frequency variation for device detection in near-field communications
A near-field communications (nfc) device includes an nfc antenna, a matching network coupled to the nfc antenna, and a transmitter coupled to the matching network. The transmitter applies a signal to the matching network and varies a frequency of the signal.
04/17/14
20140105342
 Frame and symbol timing recovery for unbursted packetized transmissions using constant-amplitude continuous-phase frequency-modulation patent thumbnailFrame and symbol timing recovery for unbursted packetized transmissions using constant-amplitude continuous-phase frequency-modulation
A system and method for performing frame and symbol timing synchronization on samples of a received signal that includes a series of frames. Each frame includes a known preamble and payload data.
04/17/14
20140103110
 Automatic touch identification system and method thereof patent thumbnailAutomatic touch identification system and method thereof
An automatic identification system for communicating identifying information by coupling signals through the human body is provided. The system includes a battery powered identification device that transmits an identifying signal via a modulated carrier.
04/10/14
20140099969
 Dedicated barring and escape command patent thumbnailDedicated barring and escape command
In accordance with an example embodiment of the present invention, a method includes receiving a connection request in uplink signaling from a user equipment, the user equipment being located in a cell; making a determination whether the user equipment can be connected and, if it is determined that the user equipment cannot be connected, informing the user equipment by downlink signaling, as a response to the connection request, that the user equipment cannot be connected. The downlink signaling includes information that indicates that the user equipment should de-prioritize a current carrier frequency or current radio access technology, and can further include a timer value to indicate a period of time for which the current carrier frequency or current radio access technology is to be de-prioritized.
04/10/14
20140099894
 Apparatus and method pertaining to testing a stylus communication path for interference patent thumbnailApparatus and method pertaining to testing a stylus communication path for interference
An apparatus having a stylus scribing surface and a sensor configured to communicate with a stylus via a wireless communication path regarding a location of the stylus with respect to that stylus scribing surface also has a control circuit that operably couples to that sensor. The control circuit is configured to automatically test that wireless communication path for interference.
04/10/14
20140098743
 Resolving co-channel interference between overlapping users using rank selection patent thumbnailResolving co-channel interference between overlapping users using rank selection
An improved method for resolving interference between co-channel users is disclosed. A peak in a spectrum generated by a music algorithm is determined for a signal of interest (“soi”) using a noise subspace.
04/03/14
20140092867
 Method and system for redirection between disparate systems patent thumbnailMethod and system for redirection between disparate systems
Disclosed are a method and a system for inter-system redirection. The method comprises: a base station sending a first message to a terminal, instructing the terminal to perform redirection; and the terminal accessing the redirected network; wherein the first message carries at least one of the following: a type of wireless access technology, an identifier of whether to redirect, threshold information of redirection, recognition information of the redirected cell, carrier frequency information, return indication of redirection failure, and grouping information of redirection.
03/27/14
20140086085
 Channel measurement method and apparatus patent thumbnailChannel measurement method and apparatus
Embodiments of the present invention provide a channel measurement method and apparatus. The method includes: configuring, for each frequency band of n frequency bands having a same carrier frequency, according to a measurement demand, reference signal information corresponding to each frequency band, so that reference signal densities included in configured reference signal information of at least two frequency bands of the n frequency bands are different, where n is a positive integer greater than or equal to 2, the reference signal information refers to information required to generate a reference signal, the reference signal density refers to a distribution density on a time domain or a distribution density on a frequency domain of the reference signal or a pattern of the reference signal; and notifying a user equipment of the reference signal information, so that the user equipment performs channel measurement according to the reference signal information..
03/20/14
20140079164
Full-range pilot-assisted frequency offset estimation for ofdm communication systems
A training symbol with two identical halves as well as a pilot-tone at a center frequency is used for both timing synchronization and carrier frequency offset estimation. A timing synchronization is achieved by finding a peak of a cross-correlation function of the two halves in the first symbol.
03/20/14
20140077904
Apparatus and method for tuning the frequency of a bandpass filter to an offset frequency around a carrier frequency
A novel frequency locked loop for tuning a bandpass filter to a small offset frequency around an rf center frequency is provided. The difference between the bandpass filter frequency and the rf center frequency is generated, a frequency locked loop is used to tune the frequency difference to a reference offset frequency..
03/13/14
20140071937
Method, system, access point and computer program product for enhancing the usable bandwidth between of a telecomunications network and a user equipment
A method for enhancing usable bandwidth between an access point of a radio access network of a telecommunications network and a user equipment of a subscriber of the telecommunications network, in which the user equipment and the access point are configured to mutually communicate based on a standardized mobile communication technology using carrier aggregation of at least a first communication carrier having a first carrier frequency and a second communication carrier having a second carrier frequency. The first carrier frequency is a standardized and licensed frequency and is related to the standardized mobile communication technology.
03/13/14
20140071919
Method and apparatus for handling measurement gaps in wireless networks
In a wireless communication system, user equipment (ue) has autonomy provided by one or more set of rules to handle processing during a measurement gap. Ue can ignore or use only a portion of the whole measurement gap if not needed.
03/13/14
20140070998
Device and method for recognizing location by conversion of frequency offset
Provided is an apparatus and method for recognizing a location by conversion of a frequency offset, the apparatus including a setting unit to receive, from a terminal, a plurality of signals comprising a first signal and a second signal, and to set a variable corresponding to each of the plurality of signals, a detector to detect a first residual phase of a carrier frequency of the first signal and a second residual phase of a carrier frequency of the second signal using the variables, and a recognizer to recognize a location of the terminal by calculating a difference between the first residual phase and the second residual phase.. .
03/06/14
20140068272
Strong authentication token with acoustic data input over multiple carrier frequencies
Strong authentication tokens for generating dynamic security values having an acoustical input interface for acoustically receiving input data are disclosed. The tokens may also include an optical interface for receiving input data and may have a selection mechanism to select either the acoustical or the optical input interface to receive data.
03/06/14
20140064734
Wdm telecommunications link with coherent detection and optical frequency comb sources
An optical data link has a transmitter and a receiver with coherent detection at the receiver and more than one optical carrier frequency. The optical carrier frequencies are generated by a frequency comb source in both the transmitter and the receiver.
03/06/14
20140064409
Data and/or command signal transmission device with antenna arrangements
The data and/or command signal transmission device includes a first signal generator connected to a first antenna arrangement, a second signal generator connected to a second antenna arrangement, a third signal generator connected to a third antenna arrangement, and a synchronisation circuit. The synchronisation circuit performs data amplitude modulation by combining the signals transmitted by the antenna arrangements.
03/06/14
20140064341
Radio communication apparatus method
A digital radio module (100) comprises a modular architecture for use in a multi-band multi-standard radio communication apparatus. The digital radio module (100) comprises one or more digital transmitter sub modules (1011 to 101x), each digital transmitter sub module comprising a plurality of digital transmitter chains (1031 to 103n), and one or more digital receiver sub modules (1051 to 105y), each digital receiver sub module comprising a plurality of digital receiver chains (1071 to 107m).
03/06/14
20140063884
Inverter device
In an inverter device, a first three-level circuit includes first to fourth preceding-stage switch elements connected in series between a first input end and a ground and a first charging and discharging capacitor. A second three-level circuit includes fifth to eighth preceding-stage switch elements connected in series between a second input end and the ground and a second charging and discharging capacitor.
02/27/14
20140055210
Tunable notch filtering in multi-transmit applications
A radio frequency (rf) communication device comprises a first signal propagating circuit and a second signal propagating circuit, which together enables simultaneous transmission. The first signal propagating circuit is configured with a first tunable notch filter within a first transmit path and the second signal propagating circuit is configured with a second tunable notch filter within a second transmit path.
02/06/14
20140038626
Method and system for selecting, transmitting, and receiving an unused carrier frequency and transmitting over the unused carrier frequency
Some embodiments concern a method of transmitting electrical signals. The method can include: using a global positioning satellite receiver to determine a first location of a first electrical device; using a first transmitter to transmit the first location to a first server; using a receiver to receive information identifying at least one first unused frequency at the first location from the first server; selecting a first transmission frequency from the at least one first unused frequency; and communicating the first transmission frequency to a user.
02/06/14
20140038521
Tightly-coupled near-field communication-link connector-replacement chips
Tightly-coupled near-field transmitter/receiver pairs are deployed such that the transmitter is disposed at a terminal portion of a first conduction path, the receiver is disposed at a terminal portion of a second conduction path, the transmitter and receiver are disposed in close proximity to each other, and the first conduction path and the second conduction path are discontiguous with respect to each other. In some embodiments of the present invention, close proximity refers to the transmitter antenna and the receiver antenna being spaced apart by a distance such that, at wavelengths of the transmitter carrier frequency, near-field coupling is obtained.
02/06/14
20140036822
Communication system
A communication system improving the communication quality in a case where a plurality of communication devices having different sizes of ranges coexist, in which communication with a terminal device is possible, to thereby improve an entire throughput. In a case where a remote radio head (rrh) is installed in a coverage of a macro cell, an uplink resource transmitted from a user equipment (ue) to the macro cell, that is, an uplink carrier frequency band ul1 of the macro cell is received not only by the macro cell but also by the rrh.
02/06/14
20140036655
Mimo beamforming-based single carrier frequency division multiple access system
A multiple-input multiple-output (mimo) beamforming-based single carrier frequency division multiple access (sc-fdma) system is disclosed. At the transmitter, a fast fourier transform (fft) is performed on transmission data to generate frequency domain data.
01/30/14
20140031955
Connecting device, system and method for signal transmission between a control center and at least one field device in an industrial installation
A connecting device, system and method for use in an industrial installation is disclosed, which includes at least one first industrial bus interface configured to receive first industrial bus input data and transmit first industrial bus output data using a first industrial bus protocol, and a second industrial bus interface configured to receive second industrial bus input data and transmit second industrial bus output data using a second industrial bus protocol. A modulator is configured to produce first energy bus output data by modulating the first industrial bus input data onto an industrial ethernet protocol and configured to produce second energy bus output data by modulating the second industrial bus input data onto the industrial ethernet protocol.
01/30/14
20140029957
Frequency equalization for an optical transmitter
An optical transmitter configured to perform digital signal equalization directed at mitigating the detrimental effects of a frequency roll-off in the transmitter's optical i-q modulator. In various embodiments, a frequency-dependent spectral-correction function used for the digital signal equalization can be constructed to cause the spectrum of the modulated optical signal generated by the transmitter to have a desired degree of flatness in the vicinity of an optical carrier frequency and/or to at least partially mirror the frequency roll-off in the optical i-q modulator..
01/30/14
20140029707
Receiver circuit and filtering method used therein
A receiver circuit includes a first mixer that performs frequency conversion on a first signal of containing a first frequency entered from outside to output the resulting frequency-converted first signal, and a first selector that selects one out of an output signal of the first mixer and a second signal containing a second frequency entered from outside. A filter removes a pre-set frequency band of the signal selected by the first selector, and a second selector that selects between outputting the signal removed of the frequency band to outside and outputting the signal to a subsequent side circuit.
01/30/14
20140029688
Ofdm pre-equalizing
For example in case of an ofdm multicarrier transmission system the transmission characteristics of subcarriers of a multicarrier transmission system using a plurality of antenna elements (3, 3′) can be adjusted. Particularly the power and the phase of the subcarriers can be adapted.
01/23/14
20140024381
Mobile communication system with device handover and method of operation thereof
A method of operation of a mobile communication system includes: receiving a base carrier frequency signal from a cell tower location; generating a power spectral density from the base carrier frequency signal; measuring a rician k factor from the power spectral density; estimating a line-of-sight doppler frequency based on the base carrier frequency signal; determining the cell tower location based on the rician k factor; and activating a handover decision handler based on the cell tower location.. .
01/23/14
20140023164
Receiving apparatus and method in smart utility network communication system
A receiving apparatus receives an fsk signal, converts the fsk signal into a phasor including amplitude and phase, estimates and compensates for a cfo (carrier frequency offset) from the converted phasor, and recovers a data bit from the converted phasor.. .
01/23/14
20140023162
Method and system for an ofdm joint training and frequency tracking system
Aspects of a method and system for an ofdm joint timing and frequency tracking system may include tracking carrier frequency and symbol timing in an orthogonal frequency division multiplexing (ofdm) signal based on at least a reference symbol set. A receiver frequency and timing may be adjusted based on the tracked carrier frequency and symbol timing.
01/23/14
20140023022
Method and apparatus for wireless communication on multiple spectrum bands
A method and apparatus for simultaneously communicating on at least two carrier frequencies, of which at least one carrier frequency is a licensed band and at least one carrier frequency is an unlicensed band, includes broadcasting an operating status of the unlicensed band to a receiver device, collecting feedback data regarding channel conditions from the receiver device for both the licensed band and unlicensed band, determining, when a bandwidth request is received from the receiver device, whether to use the unlicensed band based on the channel conditions, transmitting an unlicensed band scheduling indication to the receiver device, and communicating with the receiver device using both the licensed band and the unlicensed band according to the transmitted unlicensed band scheduling indication.. .
01/23/14
20140022119
Photonically enabled rf transmitter/receiver
A detection system includes a photonic module, a radio frequency (rf) module and processing circuitry. The photonic module may be configured to generate an optical tone for modulation in an optical domain prior to conversion to the rf domain.
01/16/14
20140016928
Tone signaling for coherent optical data receivers
A method for extracting admin information from a modulated optical signal. A coherent optical receiver receives the modulated optical signal, where a nominal carrier frequency of the modulated optical signal was modulated using a first slow frequency and second slow frequency associated with an electronic admin signal.
01/16/14
20140016723
Technique for generating a radio frequency signal based on a peak or an offset compensation signal
A technique for generating a radio frequency signal (302) based on a baseband signal (304) is provided. As to a method aspect of the technique, an amplitude signal (r) and a phase signal (φ) depending on the baseband signal (304) are provided.
01/16/14
20140016034
High definition video extender and method
Hdmi extenders based on hdbaset technology are disclosed for extending hd signals from a video source to a display over a twisted pair cable. The extenders include local and remote units.
01/09/14
20140010542
Cable communication systems and methods employing qam upstream channels below 16.4 mhz for increased aggregate deployed upstream capacity
Cable communication systems and methods to provide voice and/or data services to subscriber premises via a cable plant that conveys upstream information over an upstream path bandwidth via one or more upstream radio frequency (rf) signals. One or more rf signals include an encoded carrier wave having a carrier frequency of between 5 mhz and 16.4 mhz that is modulated using a time division multiple access (tdma) protocol or an advanced time division multiple access (atdma) protocol and quadrature amplitude modulation (qam) with voice and/or data information constituting at least some of the upstream information.
01/09/14
20140007760
Method and device for programming a projectile
An inductive or capacitative programming of a projectile is disclosed. A waveguide is used for the programming, the electromagnetic field being concentrated in the waveguide.
01/02/14
20140005870
Vehicle having obstacle detection device
The invention provides a vehicle having an obstacle detection device capable of improving the control accuracy of a motor and preventing the influence of noise on a sensor. A vehicle includes motors 31 and 32 which are ac motors, an inverter 2 that drives the motors, an ultrasonic sonar 1 which is, for example, a detector for detecting an obstacle around the vehicle, a frequency determining device 6 which determines whether noise generated from the inverter 2 is likely to interfere with a detection frequency of the detector, and a sonar ecu 5 which changes the carrier frequency of the inverter 2 when it is determined that the noise is likely to interfere with the detection frequency..
01/02/14
20140004862
Method and node supporting cell reselection in load balanced network
The present invention relates to a method in a rn node of a communications system operating on multiple carrier frequencies. The rn node hosts a first cell operating on a first carrier frequency and a second cell overlapping with the first cell and operating on a second carrier frequency.
01/02/14
20140002087
Method for simultaneous transmission of high-frequency transmission signals via a common high-frequency line
A method for simultaneous transmission of at least two high-frequency transmission signals via a common high-frequency line includes providing at least two input signals at respective inlet ports. The input signals are signals of a same carrier frequency.
01/02/14
20140001272
Transponder
A transponder comprising an antenna, such as an antenna coil, is provided for inductively coupling the transponder to a reader, transferring energy from the reader to the transponder, the electromagnetic field alternating with a carrier frequency, a rectifier having an antenna side coupled to the antenna for receiving an alternating current from the antenna and a transponder side for supplying the transponder with a direct current, and optionally a subcarrier modulator for modulating a subcarrier wave with a data signal to obtain a transmit signal. The rectifier modulates the electromagnetic field with the transmit signal so that the transmit signal is transmitted to the reader.
12/26/13
20130343492
Controllable frequency offset for inphase and quadrature (iq) imbalance estimation
Embodiments of user equipment and methods for determining iq imbalance parameters are described. In some embodiments, a method for determining in-phase (i) and quadrature (q) imbalance (iq imbalance) parameters based on a known signal in a dual-carrier receiver using at least one controllable frequency offset includes receiving a known signal modulated onto a first radio frequency (rf) carrier frequency and a second rf carrier frequency different than the first rf carrier frequency.
12/26/13
20130343359
Method and apparatus for transmitting srs in lte tdd system
A method and apparatus are provided for transmitting an uplink sounding reference signal (srs) by a user equipment (ue). The method includes receiving information related to an srs period and an offset for an srs transmission; generating the uplink srs; and when the information indicates the srs period is 2 ms, transmitting the srs in two single carrier frequency division multiple access (scfdma) symbols in a half frame according to the offset for the srs transmission.
12/26/13
20130343241
Method to support an asymmetric time-division duplex (tdd) configuration in a heterogeneous network (hetnet)
A method to support an asymmetric time-division duplex (tdd) configuration at a macro node in a heterogeneous network (hetnet) is disclosed. The method at the macro node comprises transmitting a half blank subframe (hbs) of a downlink subframe during an uplink subframe of a low power node in the hetnet.
12/26/13
20130343237
Front end module with tone injection
A radio front end includes a power amplifier, a tone injection module, a duplexer, a balancing network, and a processor. The tone injection module is operable, in a first mode, to produce a tone having a carrier frequency that is substantially similar to a carrier frequency of an inbound wireless signal.
12/26/13
20130342395
System and method for using gps interferometry to determine atmospheric conditions
A method and system for determining bending angle and/or the presence of atmospheric ducting on a moving vehicle, including receiving a first gps signal from a first gps satellite having an apparent position less than 10 degrees above the horizon; determining a true position of the first gps satellite from information encoded in the first gps signal; the first and second antennae receiving gps signals from a plurality of gps satellites located more than 15 degrees above the horizon; determining an orientation of a baseline between the first and second antennae based on a phase difference of a carrier frequency of the gps signals from a plurality of gps satellites positioned at least 15 degrees above the horizon; determining an apparent position of the first gps satellite from the first gps signal and the baseline orientation; and determining the bending angle by calculating the difference between the elevation angle of the apparent position and the elevation angle of the true position of the first gps satellite.. .
12/26/13
20130342319
Rfid system with multiple reader transmit frequencies
An rfid system includes an rf-blocking enclosure having a port with a selected shortest dimension. An active rfid tag including a controller and an interior antenna coupled to the controller is located in the enclosure.
12/26/13
20130342318
Rfid system with configurable rf port
An active rfid tag has an antenna inside rf-blocking enclosure having a port with a selected shortest dimension. An rfid reader located outside the enclosure at a reader position transmits a downlink rf signal through the port as a directional rf signal on a downlink carrier frequency corresponding to a downlink wavelength smaller than the selected shortest dimension.
12/19/13
20130336368
Receiver
Disclosed herein is a receiver including: a first mixer adapted to mix satellite signals from first and second satellites and a first local oscillation signal so as to convert a carrier frequency of the satellite signals into a lower first intermediate frequency; a second mixer adapted to mix a satellite signal of the second satellite frequency-converted by the first mixer and a second local oscillation signal so as to convert the first intermediate frequency of the frequency-converted satellite signal from the second satellite into an even lower second intermediate frequency; and a first frequency divider adapted to generate the second local oscillation signal by dividing a frequency of the first local oscillation signal.. .
12/19/13
20130336226
Method and device for transmitting data in wireless communication system
Provided are a method and a device for transmitting wireless communication data. A terminal transmits a channel quality indicator (cqi) to a base station through a physical uplink control channel (pucch) which is allocated within a sounding reference signal (srs) subframe that is determined in a ue-specific manner, and transmits uplink (ul) data through a physical uplink shared channel (pusch) which is allocated within said srs subframe.
12/12/13
20130331663
Heart monitoring system usable with a smartphone or computer
A personal monitoring device has a sensor assembly configured to sense physiological signals upon contact with a user's skin. The sensor assembly produces electrical signals representing the sensed physiological signals.
12/12/13
20130331033
Immediate connection following device discovery
An electronic device is described. During operation, this electronic device activates a communication channel having a carrier frequency in a radio in an interface circuit to listen for an advertising frame of interest from another electronic device during a scan window having a predefined duration.
12/12/13
20130329721
Apparatus, method and computer program for determining a frequency offset
Embodiments relate to a concept for determining an estimate (17) of a frequency offset between a carrier frequency of a received signal (12) and a carrier frequency of a transmitted signal, comprising determining, based on the received signal (12), an estimate (13) of the carrier frequency of the received signal (12), generating a reference signal (15) having a reference frequency corresponding, within a predefined tolerance range, to the carrier frequency of the transmitted signal, and estimating the frequency offset (17) based on the estimated carrier frequency (13) of the received signal (12) and the reference frequency of the reference signal (15).. .
12/05/13
20130324058
Wireless communication device
A wireless communication device includes an antenna, a transceiver, a filter circuit and an attenuation circuit. The transceiver includes a transmission electrode and a receive electrode, and communicates with an external device through the antenna.
12/05/13
20130322499
Single transceiver operation
A system and method includes a pair of voltage-controlled oscillators (vcos) that include a first vco generating a first signal associated with data transmission of a first type of wireless data signal; and a second vco generating a second signal associated with data transmission of a second type of wireless data signal, wherein the first type of wireless data signal uses a different carrier frequency than the second type of wireless data signal. The system further includes a multiplexer operatively connected to the pair of vcos that selectively outputs the first signal or the second signal to generate a selectively outputted signal; and a mixer operatively connected to the switch that combines the selectively outputted signal with at least one additional signal and outputs a composite signal.
12/05/13
20130322386
Method and apparatus for accessing an uplink random access channel in a single carrier frequency division multiple access system
A method and apparatus for accessing a contention-based uplink random access channel (rach) in a single carrier frequency division multiple access (sc-fdma) system are disclosed. A wireless transmit/receive unit (wtru) randomly selects a rach subchannel and a signature among a plurality of available rach subchannels and signatures.
12/05/13
20130321223
Underwater connector arrangement
An underwater connector includes a first component and a second component, wherein the components are operable to be coupled together in operation in a first coupled state, and operable to be mutually spatially separated in a second uncoupled state. The first and second components each include communication arrangements which are operable to provide wireless communication between the first and second components when in their first coupled state.
12/05/13
20130321200
Wide band clear air scatter doppler radar
Systems and methods for measuring wind speed and direction in clear air conditions using a wide band doppler radar in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, a wide band doppler radar system includes an antenna assembly includes at least one transmit antenna and at least one receive antenna; a transceiver connected to the antenna assembly configured to transmit a radar beam includes a transmit signal on a ka-band carrier frequency and receive a backscattered radar beam includes a carrier frequency that is frequency shifted relative to the transmitted ka-band carrier frequency of the backscattered radar beam; a data acquisition system connected to the transceiver configured to estimate a wind velocity vector by calculating a doppler shift between at least one transmitted radar beam and at least one received backscattered radar beam..
12/05/13
20130321079
Switching amplifier with embedded harmonic rejection filter
A switching amplifier with an embedded harmonic rejection filter is disclosed. In an exemplary design, the switching amplifier includes a generator circuit and a plurality of output circuits.
11/28/13
20130315292
Ofdm pre-equalizing
For example in case of an ofdm multicarrier transmission system the transmission characteristics of subcarriers of a multicarrier transmission system using a plurality of antenna elements (3, 3′) can be adjusted. Particularly the power and the phase of the subcarriers can be adapted.
11/21/13
20130308657
Method and apparatus for transmitting/receiving multiple codewords in sc-fdma system
The present invention relates a method and apparatus for transmitting/receiving data using multiple codewords in a communication system using sc-fdma (single carrier frequency division multiple access). A transmitter generates the multiple codewords for user data and transmits the generated multiple codewords.
11/21/13
20130308351
High voltage inductor filter apparatus and method of use thereof
The invention comprises a high frequency inductor filter apparatus coupled with an inverter yielding high frequency harmonics and/or non-sixty hertz output. For example, an inductor/converter apparatus is provided that uses a silicon carbide transistor to output power having a carrier frequency, modulated by a fundamental frequency, and a set of harmonic frequencies.
11/14/13
20130304459
Methods and apparatus for processing audio signals
A method for processing an audio signal (i(t)), comprises: receiving a first set (x(t)) of time-varying signals representing a first sound comprised in the audio signal (i(t)), the first set (x(t)) of time-varying signals comprising an amplitude modulation signal (a(t)), a carrier frequency signal (fc(t)), a pitch signal (f0(t)) and an fm index signal (h(t)); and modifying the first set (x(t)) of time-varying signals by modifying the amplitude of the fm index signal (h(t)), thereby providing a first modified set (x′(t)) of time-varying signals. The resulting first modified set (x′(t)) of time-varying signals may subsequently be modulated to provide an audio output signal..
11/14/13
20130298676
Measuring device and measuring method
In a measurement device (1) including a measurement chamber (2), in which an electromagnetic wave (4), having a carrier frequency and modulated by a modulation frequency, acts on a sample, it is proposed to arrange an acoustic pickup (6), which is tuned to the modulation frequency, outside of the measurement chamber (2) and to connect this acoustic pickup via acoustic decoupling means (9) to the measurement chamber (2) for detecting acoustic excitations (5) generated in the sample by the acting electromagnetic wave (4).. .
11/07/13
20130295862
Method of selecting and broadcasting over a transmission frequency and device for the same
In some embodiments, a method of identifying at least one transmission frequency in a set of carrier frequencies can include: (a) determining a first signal strength for each carrier frequency in the set of carrier frequencies; (b) choosing a first transmission frequency from the set of carrier frequencies at least partially based on the first signal strength of each of the carrier frequencies of the set of carrier frequencies; and (c) broadcasting electrical signals over the first transmission frequency. Other embodiments are disclosed herein..
11/07/13
20130294539
Automatic selection of coherent and noncoherent transmission
A coherent or a noncoherent transmission mode is automatically selected for a transmission on the basis of an estimated doppler frequency shift due to a motion of a mobile terminal. A coherent mode is selected if a pilot signal overhead is not excessive to uniquely characterize a doppler frequency shift, as at lower carrier frequency times relative velocity products.
10/31/13
20130287147
Maximizing the viterbi winning path metric to estimate carrier phase offset in continuous phase modulated signals
A system and method for estimating carrier frequency offset Δf and carrier phase offset φ0 inherent in a received cpm signal. Samples of a continuous phase modulated (cpm) signal are received.
10/31/13
20130287134
Maximizing the viterbi winning path metric to estimate carrier frequency and phase offsets in continuous phase modulated signals
A system and method for estimating carrier frequency offset Δf and carrier phase offset φ0 inherent in a received cpm signal. Samples of a continuous phase modulated (cpm) signal are received.
10/31/13
20130287082
Method for compensating the frequency dependent phase imbalance
A method for compensating the frequency dependent phase imbalance in a receiver is provided. The receiver downconverts an input signal to generate the signal r(t).


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Carrier Frequency topics: Carrier Frequency, Modulation, Demodulation, Objective Function, Phase Offset, Coordinates, Phase Shift, Amplification, Mobile Terminal, Pilot Signal, Electrical Signal, Base Station, Subscriber, Extension Carrier, Carrier Aggregation

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