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Center Frequency

Center Frequency-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Method and apparatus for handling dc subcarrier in nr carrier in wireless communication system
Lg Electronics Inc.
February 01, 2018 - N°20180035416

A method and apparatus for operating in a new radio access technology (nr) carrier in a wireless communication system is provided. A user equipment (ue) receives an indication of a system bandwidth and a center frequency of the system bandwidth from a network, and operates subbands in the nr carrier according to the indication. The center frequency of the system ...
Obstacle monitoring using motion-compensated distance
Semiconductor Components Industries, Llc
February 01, 2018 - N°20180031701

An obstacle monitoring system includes a first transducer that obtains a first distance measurement to an obstacle using a first linear frequency modulated (“lfm”) chirp. The system further includes a second transducer, able to operate concurrently with the first transducer, that obtains a second distance measurement to the obstacle using a second lfm chirp. The second ...
Optical transmitter, optical receiver and optical transmission method
Fujitsu Limited
January 25, 2018 - N°20180026724

An optical transmitter includes: a light source configured to generate cw light; a drive signal generator configured to generate a drive signal; an optical modulator configured to modulate the cw light with the drive signal so as to generate a first optical signal; a combiner configured to combine the first optical signal and a second optical signal generated by using ...
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Broadband matching network
Comet Ag
January 25, 2018 - N°20180026589

The invention describes a broadband matching network for coupling to an output of an amplifying device for amplifiers with a nominal operating frequency between 1 mhz and 100 mhz. The broadband matching network comprises a planar transformer with a primary winding arranged on a primary side of the broadband matching network and a secondary winding arranged on a secondary side of the ...
Multiple network allocation vector operation
Newracom, Inc.
January 11, 2018 - N°20180014293

A first wireless device may determine a bandwidth for transmitting a frame, calculate two or more spatial reuse (sr) parameter values for the bandwidth, set, using the sr parameter values, first and second sr fields of the frame based on the bandwidth and a channel center frequency in which the bandwidth is carried, and transmit the frame to a second ...
Bicycle controller, bicycle component, and bicycle control system
Shimano Inc.
January 11, 2018 - N°20180009508

A bicycle controller is configured to communicate with a first bicycle component that transmits a first wireless signal and a second bicycle component that transmits a second wireless signal. The bicycle controller includes an interface configured to receive the first wireless signal and the second wireless signal. The first wireless signal has a center frequency that is a first frequency. ...
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Frequency diversity pulse pair determination for mitigation of radar range-doppler ambiguity
U.s.a. As Represented By The Administrator Of The National Aeronautics And Space Administration
December 21, 2017 - N°20170363715

The disclosed subject matter relates to frequency diversity pulse pair (fdpp) methods and technology implemented by, alternating the order of the pulse pair transmitted or order of the group of multiple pulses transmitted, the pulses differentiated based on the center frequency of each transmitted pulse. For example, where a pair of transmitted pulses have center frequencies f1 and f2, the ...
Radio-frequency localization techniques and associated systems, devices, and methods
Humatics Corporation
December 21, 2017 - N°20170363709

A system comprising a first interrogator device that includes: a first antenna configured to transmit, to a target device, a first radio-frequency (rf) signal having a first center frequency; a second antenna configured to receive, from the target device, a second rf signal having a second center frequency that is a harmonic of the first frequency; and first circuitry configured ...
Multi-band programmable receiver
Texas Instruments Incorporated
December 07, 2017 - N°20170353205

A programmable multi-band receiver includes a signal coupler, programmable signal scaler including a fixed capacitance part including a series set of switchable capacitor arrays positioned before electrostatic discharge (esd) protecting circuitry coupled to a variable capacitance part after the esd protecting circuitry, reconfigurable mixer array, then a baseband polyphase filter. The variable capacitance part includes a parallel set of paths ...
Filter devices having reduced spurious emissions from lamb waves
Skyworks Filter Solutions Japan Co., Ltd.
December 07, 2017 - N°20170353174

A filter device that reduces spurious emissions generated in a frequency band 1. 2 to 1. 4 times greater than a center frequency of a passband of a filter. In one example the filter device includes a first filter connected between a common contact and a first signal contact and having a first passband, and a second filter connected between the common contact and ...
Apparatus and methods for reducing mutual couplings in an antenna array
s21refl
November 30, 2017 - N°20170346179

A device is presented for improving radio frequency (rf) and microwave array antenna performance. The device sits in the near field, the reactive region, of the antenna array with a pattern of electrically isolated rectangular, cross-shaped, ell, and/or similarly-shaped patches of flat metal or other conductor in a flat plane. The patches are segmented into smaller shapes no greater ...
Systems and methods for frequency error corrections in communication systems
Entropic Communications Llc
November 23, 2017 - N°20170338884

Systems and methods for correcting frequency error in a received signal include: receiving a satellite signal, the satellite signal having a bandwidth and a center frequency; determining the profile of the satellite signal; computing the center frequency of the satellite signal based on the profile of the received signal; and generating a reference signal at the computed center frequency. The ...
Variable filter circuit, high frequency module circuit, and communication device
Murata Manufacturing Co., Ltd.
November 16, 2017 - N°20170331444

The present disclosure provides a variable filter circuit capable of controlling a band width and a center frequency of a pass band, and also capable of suppressing the total number of pieces of variable reactance. That is, a variable filter circuit includes a serial arm in which a plurality of circuit elements are connected in series with respect to a ...
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Channel mapping for an aggregated touchless wireless fronthaul
Futurewei Technologies, Inc.
November 09, 2017 - N°20170324478

A method implemented by a wireless fronthaul unit, the method comprises aggregating a plurality of first wireless channel signals to produce a first aggregated signal via digital frequency-domain mapping (fdm), wherein the first wireless channel signals are positioned in the first aggregated signal in non-overlapping first frequency bands, each non-overlapping first frequency band having a first bandwidth and a center ...
Laser device
Nkt Photonics A/s
November 09, 2017 - N°20170324216

A laser device includes a tunable laser having a laser cavity and a laser control module placed outside the laser cavity, the tunable laser being configured to generate laser light having a center frequency, the laser control module being configured to receive at least a portion of the laser light generated by the laser, to generate a control signal and ...
Generator for wholly optical tunable broadband linearly chirped signal
November 02, 2017 - N°20170317462

Generator for wholly optical tunable broadband linearly chirped signal comprising a mode-locked laser, a first optical coupler, a first optical filter, a first dispersion module, a second optical filter, a second dispersion module, a tunable time delay module, a second optical coupler, an optical amplifier, and a photodetector. The generator of the present invention employs just one mode-locked laser as ...
Communication control method, user terminal, and communication apparatus
Kyocera Corporation
October 26, 2017 - N°20170311347

A communication method comprises a communication apparatus managing a serving cell of a user terminal and broadcasting to the user terminal system information for device to device (d2d) proximity service using a frequency of the serving cell. The user terminal performing a discovery procedure to discover another user terminal on a basis of the system information, which includes first ...
Fast frequency hopping phase locked loop
Qualcomm Incorporated
October 26, 2017 - N°20170310458

A fast frequency hopping implementation in a phase lock loop (pll) circuit achieves a pll lock to a new frequency in a very short period of time. In one instant, frequency allocation at a transceiver is changed. In response, a local oscillator frequency hops to a new center frequency based on the changed frequency allocation. The hopping to the new ...
Method and user device for transceiving data in next generation mobile communication system
Lg Eelectronics Inc.
October 26, 2017 - N°20170310385

A disclosure of the present specification provides a method for transceiving data in a next generation mobile communication system. The method may comprise a step of receiving system information from a base station. The system information may comprise: system band information; information regarding a first uplink center frequency and a second uplink center frequency for an uplink band within the ...
Ultrasonic transducer having flexible printed circuit board with thick metal layer and manufacturing method thereof
Alpinion Medical Systems Co., Ltd.
October 26, 2017 - N°20170307756

An ultrasonic transducer having a flexible printed circuit board with a thick metal layer and a manufacturing method thereof are disclosed. The ultrasonic transducer, according to an embodiment of the present invention, comprises: an active element that generates an ultrasonic signal, wherein the active element has a thickness of ¼λ or less at the center frequency of the ...
Digital frequency modulated continuous wave radar using handcrafted constant envelope modulation
Uhnder, Inc.
October 26, 2017 - N°20170307728

A radar system for a vehicle includes a transmitter and a receiver. The transmitter transmits an amplified and frequency modulated radio signal. Each transmitter comprises a frequency generator, a code generator, a modulator, a constant-envelope power amplifier, and an antenna. The frequency generator generates the radio signal with a desired center frequency. The code generator generates a sequence of chips ...
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