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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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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 ...
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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 ...
Radio-frequency localization techniques and associated systems, devices, and methods
Humatics Corporation
November 16, 2017 - N°20170328980

A device comprising: a substrate; a semiconductor die mounted on the substrate; a transmit antenna fabricated on the substrate and configured to transmit radio-frequency (rf) signals at least at a first center frequency; a receive antenna fabricated on the substrate and configured to receive rf signals at least at a second center frequency different than the first center frequency; and ...
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 ...
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Generator for wholly optical tunable broadband linearly chirped signal
Nkt Photonics A/s
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 ...
Ultrasound diagnosis apparatus and method of operating the ultrasound diagnosis apparatus
Sogang University Research Foundation
October 12, 2017 - N°20170293023

Provided is an ultrasound diagnosis apparatus that may include a data acquisition unit that acquires ultrasound data based on received echo signals from an object; and a processor that may estimate a center frequency of the ultrasound data and, based on the center frequency, perform pulse compression on the ultrasound data to generate short signals from elongated signals.
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Center Frequency Patent Applications
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Variable filter circuit, rf front end circuit and communication device
Murata Manufacturing Co., Ltd.
October 05, 2017 - N°20170288632

Provided is a variable filter circuit that can control the bandwidth and center frequency of a pass band, can realize steep attenuation characteristics in bands close to the pass band, and enables the total number of variable reactance units to be reduced. A variable filter circuit includes an inductor (ls1) and a capacitor (cs1), which are connected in series between ...
Acoustic wave device
Handy International Co., Ltd.
October 05, 2017 - N°20170288631

In order to pass a signal having a wide pass bandwidth with respect to a center frequency of a pass band, a surface acoustic wave device includes a first surface acoustic wave element provided with a first pass band; and a second surface acoustic wave element having a second pass band in a high frequency band compared with the first ...
Snubber circuit
Shenzhen China Star Optoelectronics Technology Co., Ltd.
September 28, 2017 - N°20170279346

The present disclosure provides a snubber circuit, wherein the snubber circuit is used to an electronic equipment including a pulse signal generator, a driving power source and a load, and the snubber circuit includes a current detection module, a control module and a snubber module. The current detection module is connected to the driving power source and detects the driving ...
Method and apparatus for wireless communication
Telefonaktiebolaget Lm Ericsson (publ)
September 21, 2017 - N°20170272213

Teachings herein improve the choice of carrier placement in a wireless communication network by de-coupling the carrier raster from the subcarrier grid. Recognizing that the placement of a carrier by its center frequency is an artificial construct, it is re-defined and the carrier placement is instead defined by the carrier position, which is on a carrier raster (e. G., 100 khz), ...
Method and apparatus for synchronization operation in cellular internet of things networks
Samsung Electronics Co., Ltd.
September 14, 2017 - N°20170265156

The present disclosure relates to a communication method and system for converging a 5th-generation (5g) communication system for supporting higher data rates beyond a 4th-generation (4g) system with a technology for internet of things (iot). The present disclosure may be applied to intelligent services based on the 5g communication technology and the iot-related technology, such as smart home, smart building, ...
Method to locate and identify artificial objects in space using van atta array retro-reflectors and ...
The United States Of America As Represented By The Secretary Of The Navy
September 14, 2017 - N°20170264022

A method to improve the ability to detect, track and identify man-made objects in space, primarily small satellites (nano-satellites, cube satellites, etc.) in low earth orbit. The method consists of designing and fabricating van atta array retro-reflectors that are designed to match the operating parameters (center frequency, bandwidth, polarization) of radar systems that track space objects, and then attaching the ...
Power amplifier matching circuit with dvcs
Cavendish Kinetics, Inc.
August 31, 2017 - N°20170250660

Embodiments disclosed herein generally relate to power amplifier matching circuits used for matching impedance and harmonic control in a device, such as a cellular phone. In one example, a power amplifier matching circuit includes two dvcs, four inductors, a transistor, and a capacitor. Utilizing the two dvcs, the impedance matching ratio and the center frequency of the circuit are capable ...
Direct current component subcarrier configuration method and apparatus
Huawei Technologies Co., Ltd.
August 24, 2017 - N°20170245278

Embodiments of the present invention provide a direct current component subcarrier configuration method and apparatus. The base station includes: a processing module, configured to: determine a first dc subcarrier on a carrier, where the first dc subcarrier is located, in a frequency domain, at a non-center frequency location on the carrier, and a center frequency of the first dc subcarrier ...
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