| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 455277100 |
Selectively or alternately connected to receiver
| 27 |
| 455278100 |
Combined with noise or interference elimination
| 20 |
| 455273000 |
With particular output combining
| 10 |
| 455275000 |
With frequency changing or selecting in the output path of one or more collectors | 3 |
| 20080299930 | IC with multi-mode antenna coupling matrix - An integrated circuit includes a first RF section, a second RF section, a baseband section, and an antenna coupling matrix. The antenna coupling matrix is coupled to: in a first mode, couple the first RF section to a first antenna structure and couple the second RF section to a second antenna structure; in a second mode, couple the first RF section to the first antenna structure and to the second antenna structure; and in a third mode, couple the second RF section to the first antenna structure and to the second antenna structure. | 12-04-2008 |
| 20080311874 | Antenna Diversity Device - In an antenna diversity device, at least one of the receive bands of the diversity antennas is frequency converted on the antenna side in such a way that the receive bands in the frequency spectrum are next to one another. This enables the diversity signals to be transmitted via a shared transmission medium to the receiver. | 12-18-2008 |
| 20140323075 | METHOD AND DEVICE FOR RADIO RECEPTION USING AN ANTENNA TUNING APPARATUS AND A PLURALITY OF ANTENNAS - A receiver for radio communication comprises: four antennas; an antenna tuning apparatus for simultaneously tuning the four antennas, the antenna tuning apparatus comprising adjustable impedance devices, each of the adjustable impedance devices having a reactance at a frequency, the reactance of any one of the adjustable impedance devices being adjustable by electrical means; four single-input and single-output low-noise amplifiers; four analog processing and conversion circuits; a multiple-input signal processing device delivering a signal to a destination, the multiple-input signal processing device delivering a tuning instruction; a tuning control unit, the tuning control unit receiving the tuning instruction from the multiple-input signal processing device, the tuning control unit delivering tuning control signals to the antenna tuning apparatus as a function of the tuning instruction. | 10-30-2014 |
| 455276100 |
With phase shifting, correcting, or regulating in the output path of one or more collectors | 3 |
| 20080214133 | System and method of a stereo receiving system - A system and method of a stereo receiving system, including a plurality of antennas, a receiving device, a plurality of summing devices, a phase lock loop device, a controllable phase shifter device, and a gain-control device. The plurality of antennas receive RF signals having a common frequency but potentially different phases. The receiving device is in electrical communication with the plurality of antennas. The plurality of summing devices are in electrical communication between at least one of the plurality of antennas and the receiving device. The phase lock loop device is in electrical communication with the receiving device. The gain-control device is in electrical communication between the plurality of antennas and the receiving device, wherein the gain-control device controls a signal-to-noise ratio of the RF signals aligned from the plurality of antennas. | 09-04-2008 |
| 20100069032 | METHOD AND SYSTEM FOR SINGLE WEIGHT ANTENNA SYSTEM FOR HSDPA - In a RF communications system, aspects for single weight antenna system for HSDPA may comprise receiving HSDPA signals via a plurality of receive antennas and individually adjusting a phase of a portion of the received HSDPA signals via a single weight. The phase adjusted portion of the received HSDPA signals may be combined with at least one of the received HSDPA signals to generate combined HSDPA signals. At least one control signal may control the adjusting of the phase of the received HSDPA signals. Discrete phases may be communicated to adjust the phase of the portion of the received HSDPA signals, where the plurality of the discrete phases may range from zero radians to substantially 2π radians. Phase shift channel estimates may be generated during the identified time to determine the discrete phase. A desired phase may be generated from the phase shift channel estimates, and the single weight may be generated from the desired phase. | 03-18-2010 |
| 20100124895 | SYSTEMS AND METHODS FOR COMPENSATING FOR TRANSMISSION PHASING ERRORS IN A COMMUNICATIONS SYSTEM USING A RECEIVE SIGNAL - A method for correcting transmission phasing errors in an plurality of antenna elements is provided. The method includes receiving at least a first signal having a first frequency at the plurality of antenna elements at an angle of arrival (AOA). The method also includes identifying an actual fractional wavelength value (f | 05-20-2010 |
| Entries |
| Document | Title | Date |
|---|
| 20080214132 | SEMICONDUCTOR DEVICE - In an RF tag, a mask ROM or a flash memory is used for storing data such as an ID number. Although the mask ROM can be realized at a low price, rewriting is not possible. In addition, in the flash memory, although electric rewriting is possible, production cost increases. Accordingly, it is difficult to provide an RF tag by which data rewriting is possible at a low price. An RF tag is provided with a power supply circuit having a function to generate a power supply voltage from a weak radio signal and a memory which can hold data stored in a data holding portion by the power supply voltage. With the above structure, a high-performance RF tag capable of rewriting data such as an ID number after production can be provided at a low price. | 09-04-2008 |
| 20080242251 | METHOD AND DEVICE FOR TRANSMITTING SIGNALS IN A WIRELESS COMMUNICATION SYSTEM AND METHOD AND DEVICE FOR RECEIVING SIGNALS IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a transmitting device ( | 10-02-2008 |
| 20080261550 | RADIO COMMUNICATION DEVICE, RADIO COMMUNICATION SYSTEM, METHOD FOR RADIO COMMUNICATION AND PROGRAM THEREOF - A radio communication device according to an exemplary aspect of the present invention which communicates in a form of multi data streams can reduce antennas which become useless in communication with a radio communication device which communicates in a form of one data stream, and can improve transmission characteristic in communication with a radio communication device which communicates in the form of one data stream. Therefore, an antenna which is not used is used for selective diversity receiving. Moreover, an antenna which is not used is moved near an antenna which is used for communication, to keep a transmission state stable. | 10-23-2008 |
| 20080261551 | SYSTEM AND METHOD FOR CHANNEL BONDING IN MULTIPLE ANTENNA COMMUNICATION SYSTEMS - Systems and methods that provide channel bonding in multiple antenna communication systems are provided. In one embodiment, a method for signal transmission over a plurality of antennas of a transmitter may include, for example, one or more of the following: demultiplexing an input signal into a plurality of signal components; assigning each of the signal components to one of a plurality of logical channels; weighting each of the signal components with transmit baseband weight values; combining ones of the resultant weighted signal components to form a plurality of transmit weighted signals, each of the plurality of transmit weighted signals being assigned to one of the plurality of logical channels; and combining groups of the plurality of transmit weighted signals to form a plurality of output signals capable of being used to generate a plurality RF output signals. | 10-23-2008 |
| 20080274710 | WIRELESS TRANSMITTER RECEIVER - A wireless monitoring receiver and system use multiple video data feeds from a plurality of cameras. The video feeds are transmitted using a multi-antenna technique, and decoded by a multi-antenna processor. The resulting transmissions are resistant to noise, interference, etc., and can be focused using antenna beams to achieve a simple form of location encryption. | 11-06-2008 |
| 20080311873 | METHOD AND SYSTEM FOR SFBC/STBC IN A COMMUNICATION DIVERSITY SYSTEM USING ANGLE FEEDBACK - Aspects of a system for STBC/SFBC in a communication system using angle feedback may include a receiver, which enables reception of signals via a plurality of receiving antennas. The receiver may enable computation of a rotation factor value based on the received signals and utilization of the computed rotation factor value to receive subsequent signals via the plurality of receiving antennas. The received signals may comprise preamble data. The receiver may enable computation of channel estimate values based on the received preamble data. A rotation angle value may be computed based on the computed channel estimate values. The rotation factor value may be computed based on the computed rotation angle value. The receiver may enable transmission of feedback information comprising the computed rotation factor and/or the computed rotation angle. | 12-18-2008 |
| 20090004988 | SYSTEM AND METHOD FOR IMPROVING THE ROBUSTNESS OF SPATIAL DIVISION MULTIPLE ACCESS VIA NULLING - The present invention discloses a base transceiver station (BTS) equipped with a plurality of antennas for improving the robustness of spatial division multiple access via nulling. The BTS comprises of a first matrix module receiving a plurality of signals from one or more customer premises equipments (CPEs) through the plurality of antennas and producing correspondingly a first plurality of covariance matrices representing the plurality of signals, a second matrix module receiving the first plurality of covariance matrices and generating correspondingly a set of derivative spatial signature matrices representing the CPEs respectively, a third matrix module receiving the derivative spatial signature matrices and producing correspondingly a second plurality of covariance matrices representing interferences of the CPEs, and an eigenvector module generating a plurality of beamforming vectors for the CPEs from the plurality of derivative spatial signature matrices and the second plurality of covariance matrices. | 01-01-2009 |
| 20090075615 | DEVICE, SYSTEM, AND METHOD OF PHASED-ARRAY CALIBRATION - Device, system and method of phased-array calibration. In some demonstrative embodiments, a wireless communication device may include an array of antenna elements; a calibration element located at a predefined location relative to the antenna elements; and an antenna controller capable of calibrating at least one beam forming weight of at least one antenna element of the array of antenna elements based on a detected phase of a calibration signal transmitted via one of the calibration element and the antenna element and received via another of the calibration element and the antenna element. Other embodiments are described and claimed | 03-19-2009 |
| 20090075616 | METHOD AND APPARATUS FOR DETERMINING AN OPERATING CONDITION IN A COMMUNICATIONS SYSTEM - A communication system environment estimation apparatus and method. In one embodiment, an environment estimation apparatus according to the teachings of the present invention includes a plurality of antenna elements and a receiver coupled to receive uplink signals from the plurality of antenna elements. The apparatus also includes a signal processor coupled to receive the uplink signals to select an estimation of an environment responsive to the uplink signals received from the plurality of antenna elements. | 03-19-2009 |
| 20090081979 | RADIO-FREQUENCY FRONT-END AND RECEIVER - The present invention relates to various embodiments of a Radio-Frequency (RF) front-end for use in a receiver, a diversity receiver and a method for operating a diversity receiver. | 03-26-2009 |
| 20090143038 | DATA PROCESSING DEVICE WITH BEAM STEERING AND/OR FORMING ANTENNAS - The present invention relates to a data processing device data processing device ( | 06-04-2009 |
| 20090176470 | Base station antenna interface system for antenna cable reduction in dual band deployments - In an antenna interface system of a wireless network base station, each sector of the base station is outfitted with two dual-band duplexer assemblies, each of which includes a tower-mounted antenna unit, an RF filter unit (e.g., triplexer), and an RF feed or antenna cable that interconnects the two. One antenna unit transmits in one communication band, and the other transmits in a second band. Both units receive signals over the two bands. The RF filter units pass transmit data on to the cables and filter receive data of both bands for separate output. The antenna units and filter units act as cable-end interfaces for multiplexing and de-multiplexing the transmit and receive data on and off the cables. Thus, each cable carries transmit data for one communication band and receive data for both bands, for a total of two cables per sector for dual-band applications. | 07-09-2009 |
| 20090186590 | Method for Channel Calibration - The present invention provides an improved method for calibrating transmitter and receiver circuits in a device having multiple antennas. The method involves transmitting pilot signals from the device to a second device and from the second device to the device. Each device determines the relative differences between the signals received by a first antenna and by each of the other antennas. The relative differences can then be used to calculate calibration factors that can be applied to the transmitter and receiver circuits. | 07-23-2009 |
| 20090191830 | Receiving apparatus and receiving system - A receiving apparatus ( | 07-30-2009 |
| 20090191831 | DIVERSITY RECEIVING DEVICE AND RECEIVING SCHEME SWITCHING METHOD - It is a theme of the present invention to provide a diversity receiving device and a receiving scheme switching method, capable of attaining a power saving by executing a switching between a diversity reception and a single reception with high accuracy. A receiving scheme switching portion ( | 07-30-2009 |
| 20090197557 | Differential diversity antenna - A differential diversity antenna is provided. In one embodiment, a differential diversity antenna is used in a wireless system comprising receiver circuitry. (and, in another embodiment, transmission circuitry). The differential diversity antenna comprises a plurality of antenna components that are aligned non-collinearly to achieve diversity. In another embodiment, the differential diversity antenna is used with a second differential diversity antenna. Other embodiments are disclosed, and each of the embodiments can be used alone or together in combination. | 08-06-2009 |
| 20090291659 | RECEIVER WITH STATISTICAL ANALYSIS AND METHODS FOR USE THEREWITH - A receiver includes an antenna array that generates a plurality of received signals from at least a first remote transmitter and a second remote transmitter. Aa plurality of receiver sections process the plurality of received signals to generate a plurality of down-converted signals. A receiver processing module generates a first plurality of reception matrices corresponding to the first remote transmitter based on the plurality of down-converted signals, generates a first reception statistic from a sum based on the first plurality of reception matrices, and generates an association decision corresponding to one of: the first remote transmitter and the second remote transmitter, based on the first reception statistic. | 11-26-2009 |
| 20100056092 | Combined Channel Coding and Space-Block Coding In a Multi-Antenna Arrangement - Enhanced performance is achieved by combining channel coding with the space-time coding principles. With K synchronized terminal units transmitting on N antennas to a base station having M≧K receive antennas, increased system capacity and improved performance are attained by using a concatenated coding scheme where the inner code is a space-time block code and the outer code is a conventional channel error correcting code. Information symbols are first encoded using a conventional channel code, and the resulting signals are encoded using a space-time block code. At the receiver, the inner space-time block code is used to suppress interference from the other co-channel terminals and soft decisions are made about the transmitted symbols. The channel decoding that follows makes the hard decisions about the transmitted symbols. Increased data rate is achieved by, effectively, splitting the incoming data rate into multiple channels, and each channel is transmitted over its own terminal. | 03-04-2010 |
| 20100173600 | DIVERSITY RECEIVER AND RECEPTION SYSTEM SWITCHING METHOD - An object of the invention is to provide a diversity receiver and a reception system switching method capable of controlling diversity reception start and stop according to the switch condition responsive to person's liking and the use environment. | 07-08-2010 |
| 20100197263 | METHOD AND APPARATUS FOR COMBINED MULTI-CARRIER RECEPTION AND RECEIVE ANTENNA DIVERSITY - Methods and wireless devices are provided that implement both multi-carrier reception and diversity processing. | 08-05-2010 |
| 20100197264 | UPLINK CHANNEL ESTIMATION - In one embodiment, a receiver is provided for use in a multiple-input system that includes a receiving antenna receiving a time-domain signal corresponding to a plurality of signals transmitted from a plurality of transmitting antennas. The receiver includes: (a) a transform unit adapted to transform the time-domain signal into a frequency-domain signal; (b) a channel estimation unit adapted to estimate, based on the frequency-domain signal and a frequency-domain pilot signal, a combined transfer function corresponding to a plurality of transfer functions of respective channels between the plurality of transmitting antennas and the receiving antenna; and (c) a channel separation unit including a plurality of frequency-domain convolution units that separate the combined transfer function into a plurality of estimated channel transfer functions. | 08-05-2010 |
| 20100210234 | SMART ANTENNA MODULE - A communication system is provided and may include a receiver that receives an analog signal, a processor in communication with the receiver that converts the analog signal to a digital signal, a control unit that receives the digital signal and communicates an executable command to a vehicle system, and a communication medium in communication with the processor and the control unit and facilitates communication of the digital signal therebetween. The receiver and the processor may be integrated into an antenna module. | 08-19-2010 |
| 20100248671 | RECEIVING APPARATUS - A receiving apparatus includes: an electronic device; a first antenna which is provided so as to be separate from a main body of the electronic device and receives broadcast waves; and a power transmission cable which transmits power to the electronic device. In the power transmission cable, a high-frequency blocking section is disposed on the side of a power source, and at least a part of the power transmission cable functions as a second antenna receiving a broadcast wave. The electronic device includes a diversity processor executing a diversity process on a signal received by the first antenna and a signal received by the second antenna. | 09-30-2010 |
| 20100311377 | Receiver and a method of receiving a signal - A receiver comprising a plurality of antennas immobilized in relation to each other and positioned on a movable carrier, each antenna being adapted to receive a signal and output a corresponding, received signal; first means for generating, from the received signals, a sum signal; second means for generating, from the received signals, one or more difference signals; third means for deriving, from the sum signal, timing information; fourth means for receiving the sum signal, the difference signal(s) and the timing information and outputting information relating to an angle between a direction of the antennas and a direction of reception of the signal. | 12-09-2010 |
| 20110045792 | Beamforming Weight Generation Using Adaptive Trigonometric Waveform Interpolation Techniques - Techniques are provided herein to generate beamforming weight vectors for transmissions to be made from a first wireless communication device, e.g., a base station, to a second wireless communication device, e.g., a client device. The first device has a plurality of antennas and receives uplink transmissions from the second device, each uplink transmission comprising a group of frequency subcarriers. The first device computes channel information from the received uplink transmission and computes one or more trigonometric waveforms determined to approximate the channel information. One or more downlink beamforming weight vectors are computed at any given frequency subcarrier (thus in any frequency subband) by interpolation using the one or more trigonometric waveforms. | 02-24-2011 |
| 20110201295 | METHOD FOR CONTROLLING OF RECEIVE DIVERSITY IN AN ANTENNA SYSTEM - A method for controlling receive diversity of an antenna system of a computer device, the antenna system including two or more antenna elements. The method includes establishing a session with a remote transmitting system and determining whether a predetermined criteria detected by the computer device is satisfied within the session. If the predetermined criteria is satisfied within the session, the method includes activating at least two of the antenna elements for receiving transmissions, enabling performance of receive diversity on the received transmissions, and performing receive diversity on the received transmissions. If the predetermined criteria is not satisfied within the session, the method includes activating at least one of the antenna elements, disabling performance of receive diversity on the received transmissions, and performing a default signal processing on the received transmissions. A mobile communication device may be used to perform the method. | 08-18-2011 |
| 20120220252 | PORTABLE ELECTRONIC DEVICE AND CONTROL METHOD THEREOF - A portable electronic device connected to a peripheral electronic device is disclosed. The peripheral electronic device includes an external output module and a second antenna module. The portable electronic device includes a first antenna module, a receiving processing module and a built-in output module. The first antenna module receives an input signal. The receiving processing module is electrically connected to the first antenna module to process the input signal to generate an output signal. The built-in output module is electrically connected to the receiving processing module to output the output signal. When the receiving processing module is connected to the peripheral electronic device, the second antenna module receives the input signal, the receiving processing module processes the input signal to generate the output signal, and the external output module outputs the output signal. A control method of the portable electronic device is also disclosed. | 08-30-2012 |
| 20120264387 | TRANSCEIVER WITH SELECTIVE BEAMFORMING ANTENNA ARRAY - A multiple mode RF transmitter a baseband section, a transmitter section, and a configurable antenna circuit. The transmitter section is couple to convert a first outbound symbol stream into first outbound RF beamforming signals in accordance with a first beamforming setting and convert a second outbound symbol stream into second outbound RF beamforming signals in accordance with a second beamforming setting. The configurable antenna circuit is coupled to provide a first antenna assembly for transmitting the first outbound RF beamforming signals and provide a second antenna assembly for transmitting the second outbound RF beamforming signals. | 10-18-2012 |
| 20120302191 | RECEIVER WITH ANTENNA SWITCHING CAPABILITY - A system and method for receiving signals using a receiver with antenna switching capability is provided. The receiver is configured to poll each antenna of the plurality of antennas and process the signals from each antenna. In addition, the receiver coordinates providing power to each antenna with the polling. | 11-29-2012 |
| 20130029625 | INTEGRATED ANTENNA AND SENSOR ELEMENT APPARATUS FOR A PORTABLE WIRELESS TERMINAL - An apparatus with a metal member used as at least one of an antenna and a sensor element in a portable terminal is disclosed. The apparatus includes the metal member, responsive to a sensed body, and for transmitting and receiving a signal in at least one or more communication service bands, and a main board having a communication module for processing a signal transmitted and received by the metal member and a sensor module for obtaining information in response to the approach of a sensed body. | 01-31-2013 |
| 20130157603 | METHOD AND SYSTEM FOR PROCESSING SIGNALS IN A HIGH PERFORMANCE RECEIVE CHAIN - Aspects of a method and system for processing signals in a high performance receive chain may include amplifying a plurality of radio frequency signals in one or more respective one or ones of a plurality of amplifier chains in a multistandard radio frequency front-end, which may comprise one or more shared processing stages. The plurality of radio frequency signals may be compliant with a plurality of radio frequency communication standards and may be received concurrently. The one or more shared processing stages may be shared between two or more of the plurality of amplifier chains. Each of the two or more of the plurality of amplifier chains may be operable to amplify signals compliant with different radio frequency communication standards. | 06-20-2013 |
| 20140011468 | METHOD FOR RECEIVING RADIO SIGNAL AND DEVICE THEREFOR - A method for receiving a radio signal by a receiver including a 2-dimensional antenna array which consists of a plurality of antenna elements in a wireless communication system includes: dividing the plurality of antenna elements into a plurality of groups; determining a group-specific reception beam for each of the plurality of groups; applying the group-specific reception beam to a channel corresponding to each of the plurality of groups to acquire virtual channels respectively corresponding to the plurality of groups; and estimating channels respectively corresponding to the plurality of groups based on reference signals received through the virtual channels. | 01-09-2014 |
| 20140302807 | Array Antenna And Related Techniques - An antenna array includes a plurality of radiating elements disposed on a layer that is situated above an egg crate structure that is formed of interconnected dielectric panels. In some embodiments, balun circuitry is disposed on at least some of the dielectric panels of the egg crate structure for use in feeding corresponding radiating elements of the array in a balanced manner. Ground plane blocks may also be coupled to some or all of the dielectric panels to provide circuit shielding and/or to form a ground plane for the array antenna. | 10-09-2014 |
| 20140329483 | DEVICES, METHODS, AND SYSTEMS FOR INITIAL SIGNAL ACQUISITION - Methods and apparatus for selecting one or more suitable antennas for use during power-up/initial acquisition and out of service modes are disclosed. In some examples, initial system acquisition may be performed for a particular receive circuit utilizing a selected one of a first antenna or a second antenna, based on a channel characteristic, such as an automatic gain control (AGC) value corresponding to a received signal energy utilizing either of the antennas. In another example, initial system acquisition utilizing either a receive diversity determination algorithm or an antenna switching determination algorithm may be performed based on a channel characteristic, such as an AGC value corresponding to a received signal energy utilizing one of the antennas coupled to one of the receive circuits. | 11-06-2014 |
| 20150341104 | Method and Apparatus for Forming a Beam - A device for forming a beam of an antenna array, the device including: an antenna array having a plurality of spatially distributed elements; a processor for selectively switching said elements between first and second states wherein, in said first state, said elements are configured to receive an incoming signal; and a receiver operatively associated with said antenna array and said processor for generating a reference signal, mixing said incoming signal with a modified reference signal to generate a mixed signal and summing the mixed signal over a predetermined period to generate an accumulated signal, wherein said reference signal is modified prior to being mixed with said received signal such that said accumulated signal is indicative of the direction and magnitude of the beam of the antenna array. | 11-26-2015 |
