| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 455132000 | Plural receivers | 63 |
| 20090124221 | DUAL BAND RECEIVER - There is provided a dual band receiver receiving frequency signals in different bands, the receiver including: a first down converter converting a first band signal into a first intermediate frequency signal; a second down converter converting a second band signal into a second intermediate frequency signal; a first voltage control oscillator supplying a first oscillation frequency to the first down converter; a second voltage control oscillator supplying a second oscillation frequency to the second down converter; a first filter passing the first intermediate frequency signal within a desired bandwidth; a second filter passing the second intermediate frequency signal within a desired bandwidth; and a clock generator converting the first oscillation frequency of the first voltage control oscillator into sampling frequencies corresponding to integer multiples of first and second oscillation frequencies and supplying the sampling frequencies to first and second AD converters, respectively. | 05-14-2009 |
| 20090170455 | Receive Diversity and Multiple Input Multiple Output (MIMO) Using Multiple Mobile Devices - A mobile device that includes an antenna, an interface, and an application. The antenna is capable of receiving a signal. The interface is capable of receiving a second signal in synchronization with the signal and the application is configured to perform receive diversity processing using the signal and the second signal. Further, is included a mobile device that includes the antenna, the interface, and a second application where the second application is configured to perform multiple input multiple output (MIMO) processing using the signal and the second signal. Increased bandwidth and processing gain is achieved for the received signal by the receive diversity processing and the MIMO processing. | 07-02-2009 |
| 20090221248 | MULTI-TUNER RADIO SYSTEMS AND METHODS - A system, apparatus, method, and media directed to navigation in the field of digital radio systems are provided. For example, an apparatus, method, or medium can be implemented to provide a multi-tuner portable digital radio device that includes multiple modes and/or advances navigation tools. | 09-03-2009 |
| 20090239488 | INFORMATION PROCESSING APPARATUS - According to an aspect of the present invention, an information processing apparatus includes: a first casing that has at least an upper face, a side face and a front face; a second casing that includes a display device and that is connected to the first casing so as to be swingable between a first state and a second state, the first state where the second casing covers the upper face, the second state where the upper face is exposed; a third casing swingably connected to the second casing irrespectively of the second casing; and an antenna provided in the third casing. The third casing surrounds the upper face, the side face and the front face together with the second casing when the second casing is in the first state. | 09-24-2009 |
| 20100003935 | MOBILE COMMUNICATION DEVICE WITH LOW POWER RECEIVER FOR SIGNAL DETECTION - A mobile communication device with a low power receiver for signal detection and a method for utilizing a low power receiver for signal detection in a mobile communication device. Various aspects of the present invention comprise a first receiver module adapted to operate in a sleep mode. The first receiver module may also be adapted to receive a communication signal utilizing a first amount of power, where the communication signal is characterized by a first set of signal characteristics. A second receiver module may be adapted to receive a communication signal characterized by the first set of signal characteristics. The second receiver module may be adapted to receive a communication signal utilizing a second amount of power that is less than the first amount of power. A communication signal received by the second receiver module may be analyzed to determine a mode in which to operate the first receiver module. | 01-07-2010 |
| 20100003936 | MULTIMODE COMMUNICATION DEVICE WITH SHARED SIGNAL PATH PROGRAMMABLE FILTER - A multimode communication device with a shared signal path programmable filter and a method for utilizing a shared signal path programmable filter in a multimode communication device. Various aspects of the present invention comprise a first module adapted to receive a first communication signal (e.g., corresponding to a first communication protocol) and a second module adapted to receive a second communication signal (e.g., corresponding to a second communication protocol). A shared filter, communicatively coupled to the first and second modules, may be adapted to filter the first and/or second communication signals in accordance with a plurality of selectable sets of filter response characteristics (e.g., associated with the first and second communication protocols). A filter control module may be adapted to select a set of filter response characteristics from a plurality of such sets and program the shared filter to filter a communication signal in accordance with the selected set. | 01-07-2010 |
| 20100009644 | Receiving Apparatus, Radio Communication System, Position Estimation Method and Program - There is provided a receiving apparatus including a plurality of receiving antennas, each of which receives a radio signal in which sub-carriers of different frequencies are multiplexed, a phase calculation unit that calculates a phase difference of each radio signal received by the plurality of receiving antennas from that of a reference signal for each of the sub-carriers contained in the radio signals, and a path difference calculation unit that calculates a path difference, which is a difference of distances from a transmitting antenna from which the radio signals are transmitted to any two receiving antennas of the plurality of receiving antennas, based on the phase difference calculated by the phase calculation unit. | 01-14-2010 |
| 20100167672 | MOBILE TERMINAL HAVING MULTIPLE ANTENNAS AND ANTENNA INFORMATION DISPLAY METHOD THEREOF - A mobile terminal having multiple antennas and an antenna information display method of the mobile terminal are disclosed. Downlink signals are received through the multiple antennas, a channel state of each antenna is measured, and whether or not each antenna needs to be adjusted or an actual channel measurement value are displayed based on the measured channel state information and an antenna setting mode. Thus, a user can check an antenna with a poor reception performance by using the antenna adjustment information or the actual channel measurement value for antenna adjustment, and easily adjust the direction of the antennas. | 07-01-2010 |
| 20100248664 | DIVERSITY RECEIVERS AND METHODS FOR RELATIVELY-DELAYED SIGNALS - Methods, software and apparatuses for decoding received delayed path signals are described. A receiver receives a signal via different paths with relative delay, e.g., on the same frequency channel. The signal is sampled at at least one sample per symbol. A channel estimator determines channel coefficients associated with the channel over which the signals were transmitted. A processor selects samples that include a dependence on a particular symbol being decoded and computes an error metric for each possible value of the particular symbol, for combinations of hypothesized future symbol values on which the selected samples depend, and for single values of previous symbols on which the selected samples depend. Error metrics calculated for each symbol are stored in memory. A soft symbol is generated based on said signal samples from the sampler, the channel coefficients and estimates of symbols computed. | 09-30-2010 |
| 20110021166 | METHOD AND SYSTEM FOR ANTENNA DIVERSITY WITH GLOBAL NAVIGATION SATELLITE SYSTEMS (GNSS) - A wireless device including one or more receivers may selectively couple one or more antennas to one or more receivers based on a directionality of the antennas and an orientation of the antennas with respect to sources of the received wireless signals, which may include global navigation satellite system (GNSS) signals. The orientation may be determined utilizing orientation sensors integrated in the wireless device, and may include a MEMS sensor and/or a magnetic compass. The antennas may be selectively coupled to the receivers based on a location of the wireless sources and the orientation of the directionality with respect to sources of the received wireless signals. A received signal strength indicator (RSSI) may be measured for each configuration. The antennas may be coupled sequentially to the receivers to determine a maximum of the RSSI. The antennas may include patch antennas and/or dipole antennas. | 01-27-2011 |
| 20110217942 | ITERATIVE MULTI-STAGE DETECTION TECHNIQUE FOR A DIVERSITY RECEIVER HAVING MULTIPLE ANTENNA ELEMENTS - A method for processing signals includes generating at a receiver, a plurality of scrambled sets of channel signals based on a plurality of spread replicas of a received signal. The plurality of spread replicas may be spread using a corresponding plurality of orthogonal sequences. At least a portion of the generated plurality of scrambled sets may be multiplexed onto a corresponding plurality of multiplexed channel signals on a receiver chain of the receiver. The plurality of spread replicas of the received signal may be combined, and the combined plurality of spread replicas may be scrambled. At least one scrambling sequence may be overlayed on the combined plurality of spread replicas of the received signal. The generated plurality of scrambled sets of channel signals may be orthogonally multiplexed onto a corresponding plurality of multiplexed channels on the receiver chain. | 09-08-2011 |
| 20130203369 | NOTCH FILTER INTEGRATED IN LNA OF A COEXISTING RADIO - A mechanism is disclosed for improving the performance of a coexisting radio by integrating a notch filter into an LNA of a first coexisting radio of two or more coexisting radios. The notch filter may be a differential circuit or a single-ended circuit. The single-ended circuit filters common mode signals. In one embodiment, the first coexisting radio has a carrier frequency that is in 2.4 GHz ISM frequency band and one of the other two or more coexisting radios has a carrier frequency that is in 1.9 GHz cellular band. | 08-08-2013 |
| 20130288623 | RECEIVER SYSTEM COMPRISING A MAIN RECEIVER AND AU AUXILIARY RECEIVER FOR CORRECTING IMPERFECTIONS IN THE MAIN RECEIVER - A receiver circuit comprising first and second receivers for demodulating first and second parts, respectively, of a received signal. The receiver circuit also comprises an adjustment circuit for adjusting the demodulated signal from the first receiver. The output signal from the adjustment circuit is used as output signal from the receiver circuit which also comprises an adjustment value circuit for determining an adjustment value for the adjustment circuit in adjusting the output signal from the first receiver. The adjustment value circuit receives the demodulated signal from the second receiver and the output signal from the adjustment circuit and uses differences between these input signals for forming said adjustment value. The first receiver and the second receiver have different transfer functions within one and the same frequency range. | 10-31-2013 |
| 20140094130 | Time-Domain Diversity Combining of Signals For Broadcast Receivers - Systems and methods are disclosed for time-domain diversity combining of radio frequency (RF) broadcast signals. Two channelized quadrature (I/Q) signals are generated by different tuner circuitry coupled to two different antennas, are converted to frequency-domain signals, and are used to generate frequency-domain diversity weighting signals. The frequency-domain diversity weighting signals are then converted to time-domain weights and applied to the channelized I/Q signals. The weighted and channelized I/Q signals are then combined in the time-domain to provide a time-domain diversity combined signal. The resulting combined signal can be further processed, as desired, such as by using a demodulator to generate demodulated output signals. Disclosed methods and systems can be applied to a variety of receiver systems configured to receive RF broadcast signals. | 04-03-2014 |
| 20140170999 | INDEPENDENT GAIN CONTROL FOR MULTIPLE RECEIVE CIRCUITS CONCURRENTLY PROCESSING DIFFERENT TRANSMITTED SIGNALS - Techniques for simultaneously receiving multiple transmitted signals with independent gain control are disclosed. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit, etc.) includes a low noise amplifier (LNA) and first and second receive circuits. The LNA amplifies a receiver input signal and provides (i) a first amplified signal for a first set of at least one transmitted signal being received and (ii) a second amplified signal for a second set of at least one transmitted signal being received. The first receive circuit scales the first amplified signal based on a first adjustable gain selected for the first set of transmitted signal(s). The second receive circuit scales the second amplified signal based on a second adjustable gain selected for the second set of transmitted signal(s). The first and second adjustable gains may be independently selected, e.g., based on the received powers of the transmitted signals. | 06-19-2014 |
| 20140335806 | MANAGING WIRELESSLY TRANSMITTED USE-DATA IN A WIRELESS DATA TRANSMISSION ENVIRONMENT - A method of managing wirelessly transmitted use-data in a wireless data transmission environment, the method comprising: Receiving the wirelessly transmitted use-data by a first receiver and estimating a reception quality of the use-data received by the first receiver by applying a quality criterion. In case the reception quality meets the quality criterion, the method moreover comprises using a second receiver for background scanning the wireless data transmission environment, and in case the reception quality does not meet the quality criterion, the method moreover comprises using the second receiver additionally for reception of the use-data, thus providing both receivers for a diversity reception of the use-data. | 11-13-2014 |
| 20150147990 | INTELLIGIBILITY OF OVERLAPPING AUDIO - A method and apparatus are provided by which a radio communication device with multi-watch receivers improves the comprehension of a high-priority message when the high-priority message is overlapped in time with a normal-priority message. A first receiver of the radio communication device receives a first incoming message over a first channel, and a second receiver of the radio communication device receives a second incoming message over a second channel. The radio communication device, upon receiving the first and second incoming messages, detects that a portion of the first incoming message overlaps in time with a portion of the second incoming message. The radio communication device further determines whether at least one of the first or the second incoming message is a high-priority message and repeats the determined high-priority message when at least one of the first or second incoming messages is a high-priority message. | 05-28-2015 |
| 20150349869 | ENHANCED OPPORTUNISTIC MOBILE RECEIVE DIVERSITY FOR DUAL-SIM DUAL-ACTIVE MOBILE DEVICE - A method for performing mobile receive diversity may include: enabling a first receive chain associated with a first radio access technology (RAT) to receive one or more signals from a second RAT; receiving second RAT signals on a second receive chain; enabling receive diversity on a modem associated with a second receive chain; generating, by a diversity receiver, a receive diversity signal based on the one or more second RAT signals received by the first receive chain during periods of time the first receive chain does not receive a signal from the first RAT; and outputting the generated receive diversity signal to a decoder for the second RAT. | 12-03-2015 |
| 20160094255 | METHOD AND APPARATUS FOR RECEIVING WIRELESS COMMUNICATIONS - Aspects of the subject disclosure may include, for example, a method for down-converting a long-range communication signal that is wirelessly received via a first antenna of a communication device to extract a first version of a baseband signal, down-converting a short-range communication signal wirelessly received from a second device via a second antenna of the communication device to extract a second version of the baseband signal from the long-range communication signal that can be received at the second device, which is remote from the communication device, via a second antenna. The first version and second version of the baseband signal can be combined to generate an information signal that can be processed. Other embodiments are disclosed. | 03-31-2016 |
| 455133000 | With output selecting | 16 |
| 20090111403 | ITERATIVE MULTI-STAGE DETECTION TECHNIQUE FOR A DIVERSITY RECEIVER HAVING MULTIPLE ANTENNA ELEMENTS - A system and method for processing signals are disclosed. The method may include scrambling a first composite signal comprising N orthogonal sequences to generate a set of N channel signals. A second composite signal including M orthogonal sequences may be scrambled to generate a set of M channel signals. The M orthogonal sequences may be a subset of the N orthogonal sequences. The generated set of N channel signals and the generated set of M channel signals may be combined to generate K channel signals. K multiplexed channels may include the N channel signals and the M channel signals. The N channel signals may correspond to N antenna elements, and the M channel signals may correspond to M antenna elements. Each of the N channel signals may be spread utilizing a corresponding one of the N orthogonal sequences. | 04-30-2009 |
| 20090111404 | ITERATIVE MULTI-STAGE DETECTION TECHNIQUE FOR A DIVERSITY RECEIVER HAVING MULTIPLE ANTENNA ELEMENTS - A system and method for processing signals are disclosed. The method may include spreading N replicas of a received signal with N orthogonal sequences. A scrambled set of N channel signals may be generated based on the spread N replicas of the received signal. M replicas of a received signal may be spread with the N orthogonal sequences. A scrambled set of M channel signals may be generated based on the spread M replicas of the received signal. The generated scrambled set of N channel signals and said generated scrambled set of M channel signals may be multiplexed onto K multiplexed channel signals on a receiver chain, where M, N and K are integers. The spread N replicas of the received signal may be combined. The combined spread N replicas of the received signal may be scrambled. | 04-30-2009 |
| 20100015934 | DIVERSITY RECEIVING DEVICE - A diversity receiving device includes two signal paths. Each path interfaces an antenna that receives a radio frequency signal and an amplifier that amplifies the received radio frequency signal. A variable signal level attenuator in each path attenuates the amplified signal and receives current from current sources. The current sources are coupled to the amplifiers through variable signal level attenuators. The variable signal level attenuators are in parallel with controllable bypass lines which comprise variable resistance elements. The two signal paths are combined into a common path. | 01-21-2010 |
| 20110034138 | TUNER AND BROADCAST RECEIVER HAVING THE SAME - Provided are a tuner and a broadcast receiver having the same. The tuner comprises a first signal receiver, a second signal receiver, a signal converter, and a signal processor. The first signal receiver receives a first signal. The second signal receiver receives a second signal. The signal converter converts the second signal into a signal in a frequency band of the first signal. The signal processor processes an output signal of the first signal receiver or the signal converter. | 02-10-2011 |
| 20150065073 | ANTENNA SWITCHING FOR DUAL RADIO DEVICES - Systems and methods for antenna selection in a wireless terminal with two radios are provided. Signals received using first and second antennas are demodulated by first and second modems according to first and second protocols. A receive path between the second antenna and the second modem can be controlled to receive signals according to the first protocol. A performance measure of demodulating, according to the first protocol, a signal received using the second antenna is determined. The performance measure may be determined using a mirror module in the second modem or using a search module in the first modem. The wireless terminal switches antennas so that the first modem demodulates a signal received using the second antenna, if the performance measure for using the second antenna is such that the switch would improve performance of the first modem. | 03-05-2015 |
| 455134000 | By signal strength | 5 |
| 20090163160 | ADAPTIVE RESPONSIVITY RF RECEIVER DETECTOR SYSTEM - A variable responsivity adaptive detector system ( | 06-25-2009 |
| 20100317304 | Enhanced Radio - A system and method of controlling a portable radio may involve tuning a first receiver of the portable radio to a first broadcast from a first station, where the first broadcast includes specific program content. A switching event can be detected at the portable radio, where a second receiver of the portable radio may be tuned to a second broadcast from a second station in response to the switching event. The second broadcast can include the specific program content. | 12-16-2010 |
| 20110237213 | FRONT-END RECEIVER CIRCUIT WITH MULTIPLE PATHS WHICH ARE SIMULTANEOUSLY ACTIVE AND RECEIVER SYSTEM USING THE SAME - A front end receiver is disclosed. The front end receiver comprises a plurality of transmissive signal paths originating from one signal input, a plurality of switching mechanisms; and at least one path of the plurality of transmissive signal paths including a first amplifier coupled to a first input port of each of the plurality of switching mechanisms. The front end receiver also comprises at least another path of the plurality of transmissive signal paths including a second amplifier coupled to a second input port of each of the plurality of switching mechanisms. The receiving subsystem coupled to the output port of each switching mechanism. Each of the receiving subsystems controls a switching mechanism to select the path that is optimal for radio reception depending on the strength of signal being received. | 09-29-2011 |
| 20110269417 | APPARATUS, AND ASSOCIATED METHOD, FOR OPERATING UPON RECEIVED DATA AT A RECEIVING STATION CAPABLE OF DIVERSITY OPERATION - Apparatus, and an associated method, for a receiving station, such as the receive part of a mobile station, that has diversity antennas. The receiving station includes both legacy demodulators and a diversity demodulator. Calculations are made to determine signal indicia associated with the signal energy detected at the diversity antennas. Responsive to the signal indicia, selection is made as to whether to utilize demodulation data, demodulated pursuant to a diversity demodulation technique or pursuant to a legacy demodulation technique. As the characteristics of received signals change, reselection of the demodulation is correspondingly made, such as on a frame-by-frame basis of frame-formatted data. | 11-03-2011 |
| 20130149980 | ELECTRONIC DEVICE AND METHOD FOR SWITCHING RADIO RECEIVER - A method for switching radio receivers includes: directing a FM radio receiver or an Internet radio receiver of an electronic device to receive radio signals; monitoring the intensity of radio signals received by the FM radio receiver and the network data stream received by the Internet radio receiver periodically; determining whether a switch condition for switching radio receivers between the FM radio receiver and the Internet radio receiver is satisfied according to the radio receiver currently employed, the intensity of radio signals received by the FM radio receiver, and the network data stream received by the Internet radio receiver; and switching between the FM radio receiver and the Internet radio receiver if the switch condition is satisfied. A related electronic device is also provided. | 06-13-2013 |
| 455135000 | By signal quality (e.g., signal to noise ratio) | 2 |
| 20150079916 | MOBILE INTERNET RADIO RECEIVER - A mobile internet radio receiver is disclosed which includes a radio interface for internet communication over a cellular mobile phone network. An internet audio signal source selects and outputs a first audio signal. At least one receiver part receives digital and/or analog radio signals, derives a second audio signal identical in content with the first audio signal from the radio signals, and outputs the second audio signal. A compare entity assesses the reception quality of the first and second audio signals, and outputs an audio signal output to which depending on the assessed reception quality, the first audio signal or the second audio signal can be applied. | 03-19-2015 |
| 20150079917 | Methods and Apparatus for Adaptive Receiver Diversity in a Wireless Network - Apparatus and methods for implementing “intelligent” receive diversity management in e.g., a mobile device. In one implementation, the mobile device includes an LTE-enabled UE, and the intelligent diversity management includes selectively disabling receive diversity (RxD) in that device upon meeting a plurality of criteria including (i) a capacity criterion, and (ii) a connectivity criterion. In one variant, the capacity criterion includes ensuring that an achievable data rate associated with a single Rx (receive) chain is comparable to that with RxD. | 03-19-2015 |
| 455136000 | With control (e.g., automatic gain control, automatic frequency control, etc.) | 4 |
| 20090061800 | MULTI-INPUT MULTI-OUTPUT TRANSCEIVER WITH POWER CONSUMPTION MANAGEMENT BASED ON RECEIVER PARAMETER AND METHOD FOR USE THEREWITH - An integrated circuit (IC) includes a plurality of RF receivers for receiving a corresponding one of a plurality of received signals. Each of the plurality of the RF receivers includes an AGC module that generates an automatic gain control (AGC) signal based on the strength of the corresponding one of the plurality of received signals, and a low noise amplifier that amplifies the corresponding one of the plurality of received signals based on the AGC signal. A processing module generates a power mode signal for adjusting a power consumption parameter of the IC, based on the AGC signals from each of the plurality of RF receivers. | 03-05-2009 |
| 20090068968 | MULTI-INPUT MULTI-OUTPUT TRANSCEIVER WITH TRANSMIT POWER MANAGEMENT BASED ON RECEIVER PARAMETER AND METHOD FOR USE THEREWITH - An RF transceiver includes a plurality of RF receivers for receiving a corresponding one of a plurality of received signals. Each of the plurality of the RF receivers includes an AGC module that generates an automatic gain control (AGC) signal based on the strength of the corresponding one of the plurality of received signals, and a low noise amplifier that amplifies the corresponding one of the plurality of received signals based on the AGC signal. A processing module generates a transmit power control signal based on the AGC signals from each of the plurality of RF receivers. A plurality of RF transmitters each generate a corresponding one of a plurality of transmit signals having a selected power level, wherein the selected power level is based on the transmit power control signal. | 03-12-2009 |
| 20100069028 | ANTENNA SWITCHING METHOD AND METHOD FOR TRANSMITTING AND RECEIVING SIGNALS FOR THE SAME - A closed-loop antenna switching method, a reference signal allocating method, and a feedback signal transmitting method for the same are disclosed. Namely, by transmitting a reference signal via the plurality of transmitting antennas via the antenna switching for reference signal transmission for each prescribed multiple period of an antenna selection period, efficient antenna index information can be fed back. By setting an antenna switching period to a prescribed multiple of an antenna selection period, it is able to prevent power loss and data decoding performance degradation. And, the present invention includes transmitting a sounding reference signal (SRS) for each band selection period via at least one of the plurality of transmitting antennas and transmitting at least one data demodulation reference signal (DMRS) between the band selection periods via an antenna for not transmitting data by reference signal transmission antenna switching. | 03-18-2010 |
| 20100081403 | Rake Receiver and a Method of Allocating Fingers in a RAKE Receiver - A RAKE receiver is adapted to receive input from at least a first and a second antenna ( | 04-01-2010 |
| 455137000 | With output combining | 12 |
| 20080220734 | SYSTEM, DEVICE AND METHOD FOR GENERATING A LOGARITHMIC FUNCTION ACCORDING TO A PLURALITY OF COMMUNICATION SIGNALS - The present invention discloses a log function generator module device that is adapted to receive substantially simultaneously a plurality of signals at a plurality of respective communication links. The device includes a plurality of sets of logarithmic, a plurality of substantially linear amplifiers, a plurality of negative-value-eliminator (NVE) modules, a plurality of preliminary adders, a plurality of limiters and one final adder all of which are associated with each other a manner such that the output of the final adder is a final signal that substantially corresponds to a logarithm of the sum of the square of each of the received signals, thereby providing a received signal strength indication (RSSI) of the plurality of received signals. | 09-11-2008 |
| 20090075610 | DIGITAL AND ANALOG IM3 PRODUCT COMPENSATION CIRCUITS FOR AN RF RECEIVER - Third-order intermodulation products (IM3) are attenuated in RF receivers by providing a typical main signal path and a parallel auxiliary signal path in which the IM3 products are accentuated, and the output from the main signal path is adaptively filtered to attenuate the IM3 products. In one embodiment, a multirate filter bank (MRFB) with asymmetric analysis and synthesis sections is used to detect and isolate the IM3 products. In another embodiment an analog nonlinear term generator is placed at the front of the auxiliary signal path. The analog nonlinear term generator takes advantage of the nonlinearities of a differential MOSFET circuit and a multiplier to extract the IM3 products in the RF input signal. The outputs of the main signal path and the auxiliary signal path are inputs to a complex least mean squares filter to attenuate the IM3 products in the resulting signal. | 03-19-2009 |
| 20090291654 | RECEIVER WITH HYBRID RECEPTION ESTIMATION 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, the antenna array having a beam pattern that is controllable based on at least one control signal. A plurality of receiver sections process the plurality of received signals to generate a plurality of down-converted signals. A receiver processing module, generates the at least one control signal to control the beam pattern to a first pattern during a first time period for reception from the first remote transmitter, generates a first reception estimate based on the plurality of down-converted signals during the first time period, generates the at least one control signal to control the beam pattern to a second pattern during a second time period for reception from the second remote transmitter, generates a second reception estimate based on the plurality of down-converted signals during the second time period, and generates inbound data based on the first reception estimate and the second reception estimate. | 11-26-2009 |
| 20090325519 | RECEIVER AND ELECTRONIC APPARATUS USING THE SAME - A receiver according to the present invention includes a first receiving (RCV) quality detector and a second RCV quality detector connected before a combining unit. The second RCV quality detector determines a quality of a signal output from at least one of a first receiving unit and a second receiving unit by a method different from that of the first RCV quality detector. A controller allows the receiver to operate in a single receiving mode when a determination result of the second RCV quality detector is not better than a predetermined level regardless of a determination result of a determination result of the first RCV quality detector not being a predetermined level. When the receiver passes in an area where the receiver cannot receive a broadcast signal, the determination result of the second RCV quality detector is not better than the predetermined level. In response, the controller allows the receiver to operate in the single receiving mode, thereby reducing power consumption of the receiver. | 12-31-2009 |
| 455138000 | With control (e.g., automatic gain control) | 8 |
| 20080293368 | SHARED LNA AND PA GAIN CONTROL IN A WIRELESS DEVICE - A wireless device includes at least one antenna, a plurality of shared signal path components coupled to the at least one antenna, the plurality of shared signal path components including a shared adjustable gain element, e.g., Low Noise Amplifier (LNA), Power Amplifier (PA), etc., a first wireless interface, e.g. Wireless Local Area Network interface coupled to the plurality of shared signal path components, and a second wireless interface, e.g., Wireless Personal Area Network interface, coupled to the plurality of shared signal path components. During a first operational period, the first wireless interface controls gain of the shared adjustable gain element and during a second operational period that differs from the first operational period, the second wireless network interface controls gain of the shared adjustable gain element. With another embodiment the first wireless interface and/or the second wireless interface each includes shared adjustable gain elements for transmit and receive diversity. | 11-27-2008 |
| 20090011731 | DIVERSITY RECEIVER AND GAIN ADJUSTING METHOD THEREFOR - Reception levels are measured in respective branches to compare the results of the measurements with one another to select the result of the measurement of a maximum reception level which is the highest reception level. The gains of variable gain amplifiers ( | 01-08-2009 |
| 20090029662 | RECEIVING MODULE AND RECEIVING DEVICE USING THE SAME - The demodulator in the receiving module of the invention supplies a signal produced based on a signal level detected by a first detector to a second amplifier as an amplification degree adjustment signal. With this arrangement, when a second receiver works, an AGC voltage supplied to the second receiver is already close to an ultimately converging certain value. The AGC voltage supplied to the second receiver is thus stabilized in its value, from the value close to the ultimately converging certain value to the certain value. Accordingly, a time period required from the second receiver starts working until the AGC voltage supplied to second amplifier ultimately converges into the certain value is shortened. | 01-29-2009 |
| 20100130147 | RADIO COMMUNICATION APPARATUS, RADIO COMMUNICATION SYSTEM AND SIGNAL SWITCHING METHOD - A radio communication system for conducting the radio communication with a terminal device includes a first radio communication apparatus for processing a first signal; a second radio communication apparatus for processing a second signal, and to combine the first signal and the second signal; a common amplifier for amplifying the first and second signals from the second radio communication apparatus, transmitting the amplified signals to the terminal device, amplifying first and second signals received from the terminal device, and outputting the amplified signals to the second radio communication apparatus, the second radio communication apparatus separating the amplified first and second signals; and a switching apparatus coupled to the first radio communication apparatus, the second radio communication apparatuses and the common amplifier to disconnect the first or second radio communication apparatus when a fault occurs in the first or second radio communication apparatus, respectively. | 05-27-2010 |
| 20110263218 | MOBILE STATION APPARATUS - A mobile station apparatus is provided which is capable of obtaining a diversity effect and preventing an increase in noise even if an antenna phase difference containing an error is detected. The mobile station apparatus includes a closed-loop transmit diversity control section for exerting, when the quality of the component from the second antenna is lower than a predetermined quality value based on the quality measured by the common pilot channel quality measurement section, control to cause the feedback information generation section not to use the detection result at the antenna phase difference detection section, and to continue to use the immediately preceding feedback information, control to cause the antenna verification section not to operate, and control to cause the first channel inference section to operate and the second channel inference section not to operate. | 10-27-2011 |
| 20120302187 | RECEPTION METHOD AND RECEPTION APPARATUS - A radio transmitting apparatus that has a plurality of antennas and changes the number of modulated signals transmitted simultaneously according to the propagation environment and so forth. A transmission power changing section | 11-29-2012 |
| 455139000 | Frequency or phase control | 2 |
| 20110201289 | ROTATING HARMONIC REJECTION MIXER - In one embodiment, the present invention includes a mixer circuit to receive and generate a mixed signal from a radio frequency (RF) signal and a master clock signal, a switch stage coupled to an output of the mixer circuit to rotatingly switch the mixed signal to multiple gain stages coupled to the switch stage, and a combiner to combine an output of the gain stages. | 08-18-2011 |
| 20140065992 | ANALOG BASEBAND FILTER APPARATUS FOR MULTI-BAND AND MULTI-MODE WIRELESS TRANSCEIVER AND METHOD FOR CONTROLLING THE FILTER APPARATUS - An analog baseband filter apparatus for a multi-mode and multi-band wireless transceiver and a method for controlling the analog baseband filter apparatus are provided. The analog baseband filter apparatus includes a plurality of Radio Frequency (RF) units, each of the plurality of RF units being for receiving RF signals of one of a plurality of frequency bands and outputting baseband signals, a plurality of filter blocks for filtering and amplifying the baseband signals, and a switching unit for connecting at least two of the plurality of RF units to at least one of the plurality of filter blocks according to a selected communication mode, wherein the at least one of the plurality of filter blocks is configured to be connected to a capacitor region of an adjacent filter block from among the plurality of filter blocks. | 03-06-2014 |
| 455140000 | Selectively actuated or controlled | 12 |
| 20080207151 | Apparatus, methods and computer program products providing selective diversity operation and adjustment of transport format for a multiple-receiver unit - In one exemplary embodiment, method including: receiving a first wireless communication with at least a first and second receiver utilizing a diversity method; and, in response to determining that simultaneous reception of a second wireless communication is desired, signaling that at least the second receiver is to be unavailable for the first communication. In another exemplary embodiment, method including: receiving a first wireless communication with at least a first receiver; receiving a second wireless communication with at least a second receiver; and in response to determining that reception of the second communication is to end, signaling that at least the second receiver is to be available for use. In another exemplary embodiment, method including: receiving, by a first apparatus, a timing of a second apparatus' periodic reception; and adjusting a transport format of a wireless communication sent from the first apparatus to the second apparatus based on the timing. | 08-28-2008 |
| 20090023406 | ENHANCED RADIO SYSTEMS AND METHODS - An enhanced radio system is disclosed that provides for the capture and playback of one or more radio stations. The user may tune to a station, or scan through stations, rewind to hear what was missed (even while the system is turned off), and fast-forward through undesired content. The system allows a user to rate content, and to be notified when that content is being played on any station. The system may recognize content as it is broadcast and may jump to desirable content, save a copy of desirable content, or skip over undesirable content. The system may make radio station recommendations. The system may support multiple sets of configuration information to allow its use by multiple listeners and in multiple locations. The system allows the user to respond easily to radio content, download and upload audio content, and send radio content to another user. The system may allow a user to download information about content that the user wishes to record a copy of. The system may include security features to prevent the unauthorized downloading, uploading, and saving of copies of the radio content. The system may provide other radio related and radio content related information. The system may provide a karaoke mode. The system may also allow the user to integrate a telephone with the radio. The system may report usage information to a collection facility. | 01-22-2009 |
| 20090163161 | SCALABLE RADIO RECEIVER ARCHITECTURE PROVIDING THREE-DIMENSIONAL PACKAGING OF MULTIPLE RECEIVERS - Methods of forming scalable systems and scalable systems on an integrated circuit (SoC) are provided. First and second radio frequency (RF) systems are disposed on first and second substrates, respectively. A first processor that is configured to process the first RF system is disposed on a substrate separate from the first substrate and a second processor that is configured to process the second RF system is disposed on a substrate separate from the second substrate. The first processor and the first RF system are stacked one on top of the other to configure a first RFSoC and the second processor and the second RF system are stacked one on top of the other to configure a second RFSoC. The first and second RFSoCs are disposed either in a horizontal plane, laterally spaced from each other, or in vertically stacked planes, one above the other. | 06-25-2009 |
| 20090197549 | TERMINAL FOR USE IN A WIRELESS COMMUNICATION SYSTEM AND A METHOD OF OPERATION THEREOF - A terminal ( | 08-06-2009 |
| 20100248665 | Automatic Gain Control in Multi-Carrier Wireless Systems - Methods and apparatus for providing automatic gain control (AGC) for received multi-carrier signals are disclosed. A receiver circuit comprises a common analog signal path, which includes an analog variable-gain circuit and an analog-to-digital converter, and further comprises first and second carrier-specific, digital variable-gain circuits corresponding to first and second carriers of the received multi-carrier signal, respectively. The receiver circuit further includes a gain control circuit configured to control the analog and digital variable-gain circuits and to allot gain adjustments to the analog variable-gain circuit based on a difference between carrier signal levels for the first and second carriers. In some embodiments, the gain control circuit selectively operates in an all-carrier mode, in which analog gain adjustments are calculated from both of the carrier signal levels, or in an unequal-priority mode, in which analog gain adjustments are calculated from only one of the first and second carrier signal levels. | 09-30-2010 |
| 20110195682 | DIVERSITY RECEIVER - A diversity receiver includes a plurality of receiver circuits that are configured to receive and process the received radio frequency signals. A channel estimator is coupled to at least one of the plurality of receiver circuits and is configured to determine at least one channel estimation value for the received radio frequency signals. A controller is coupled to the channel estimator and to at least one of the plurality of receiver circuits and is configured to selectively activate or deactivate the at least one of the plurality of receiver circuits based on the determined at least one channel estimation value. | 08-11-2011 |
| 20130288624 | METHODS AND APPARATUS FOR ADAPTIVE RECEIVER DIVERSITY IN A WIRELESS NETWORK - Apparatus and methods for implementing “intelligent” receive diversity management in e.g., a mobile device. In one implementation, the mobile device includes an LTE-enabled UE, and the intelligent diversity management includes selectively disabling receive diversity (RxD) in that device upon meeting a plurality of criteria including (i) a capacity criterion, and (ii) a connectivity criterion. In one variant, the capacity criterion includes ensuring that an achievable data rate associated with a single Rx (receive) chain is comparable to that with RxD. | 10-31-2013 |
| 20140094131 | Mobile Communications Radio Receiver for Multiple Network Operation - A mobile communications radio receiver for multiple radio network operation includes an RF unit for generating a first down-converted signal from a radio signal received from a first radio network and a second down-converted signal from a radio signal received from a second radio network. Further, it includes a first receiver comprising a paging indicator channel demodulator for demodulating a paging indicator channel of the first radio network based on the first down-converted signal, and a second receiver including a pilot channel demodulator for demodulating a pilot channel of the second radio network based on the second down-converted signal. A first data connection is configured to couple paging information contained in the second down-converted signal to an input of the paging indicator channel demodulator of the first receiver. | 04-03-2014 |
| 20140220916 | Adaptive Receive Diversity during Discontinuous Reception in Mobile Wireless Device - A mobile wireless device adapts receive diversity during discontinuous reception based on downlink signal quality, page indicators and page messages. When the downlink signal quality exceeds a pre-determined threshold, the mobile wireless device decodes a page indicator channel through an initial antenna, and otherwise, decodes a paging channel through the initial antenna without decoding the page indicator channel. The mobile wireless device switches to decoding the paging channel through an alternate antenna when a page indicator decodes as an erasure. When a paging message received through a single antenna decodes with an incorrect error checking code, the mobile wireless devices enables receive diversity through multiple antennas for subsequent decoding. The mobile wireless device switches between single antenna reception and multiple antenna reception based on tracking multiple consecutive error checking code failures and successes. | 08-07-2014 |
| 20140308910 | RECEIVER CONTROL CIRCUIT AND PORTABLE ELECTRONIC DEVICE EMPLOYING SAME - A receiver control circuit includes a first receiver, a second receiver, a first light sensor, a second light sensor, and a determination circuit. The first light sensor detects light transmitted to the first receiver. The second light sensor detects light transmitted to the second receiver. The determination circuit compares an intensity of the light detected by the first light sensor with an intensity of the light detected by the second light sensor. The determination circuit further selectively activates the first receiver when the intensity of the light detected by the first light sensor is less than the intensity of the light detected by the second light sensor, or activates the second receiver when the intensity of the light detected by the first light sensor is greater than the intensity of the light detected by the second light sensor. | 10-16-2014 |
| 20150056936 | Independent and Concurrent Automatic Gain Control for Wireless Communication and Spectral Intelligence - A set of receiver path circuits is allocated for processing a radio-frequency (RF) signal provided by receive antennas coupled to the receiver path circuits. The RF signal may belong to a first signal class, such as Wi-Fi. A first gain control signal is applied to each of the allocated receiver path circuits to condition a signal level of the RF signal for the first signal class. A second gain control signal is applied to another set of receiver path circuits coupled to the receive antennas to condition the RF signal of a second signal class. First receive gain control signals are generated from the RF signals of the first signal class by the allocated set of the receiver path circuits. The first receive gain control signals are configured to optimize the signal level for processing the first signal class. A second receive gain control signal is generated to optimize the signal level of the RF signal for the second signal class. | 02-26-2015 |
| 20150311933 | Radio Signal Receiver, Electronic Device, and Radio Signal Receiving Method - A radio signal receiver includes a GPS receiver circuit, an environment detection circuit (charging state detection circuit and voltage detection circuit) that detects is in an environment suited to the radio signal receiver receiving satellite signals, and a control circuit. The control circuit has a first reception control unit that operates the GPS receiver circuit when the radio signal receiver is determined to be in an environment suited to receiving satellite signals based on the result output by the environment detection circuit, a second reception control unit that operates the GPS receiver circuit at a scheduled reception time, and a switching unit that switches operation between the first reception control unit and second reception control unit. | 10-29-2015 |
| 455141000 | Including common stage (e.g., local oscillator) | 4 |
| 20100075622 | DYNAMIC SCALABLE CONCURRENT COMMUNICATION AND MULTI-CORE RECEIVER ARCHITECTURE - An integrated multi-core RF device includes a common amplifier which outputs an amplified RF signal. A common transmission line is configured to supply the amplified RF signal to a plurality of common transmission line distribution connections. Each receiver core of a plurality of receiver cores has a receiver core RF input coupled to one of the plurality of common transmission line distribution connections. Each core is configured to be tunable to a channel and to output at least one baseband output per channel. The integrated multi-core RF device is configured to concurrently down convert a plurality of channels to corresponding down converted baseband signals. The integrated multi-core RF device is configured to allow dynamic selection of the one or more of the plurality of channels over time. A method to recover a DSCC receiver IC is also described. | 03-25-2010 |
| 20120214434 | RADIO APPARATUS - A radio apparatus includes a first receiver that is a processing unit for amplifying and frequency converting a radio signal received via an antenna, thereby outputting an IF signal; a detector unit for detecting a preamble signal from the IF signal; a second receiver for amplifying and quadrature demodulating the radio signal, thereby generating an I-signal and a Q-signal; a demodulator unit for demodulating the I-signal and Q-signal to generate a data signal; and a control unit for halting the operation of the first receiver and further activating the second receiver when the detector unit detects the preamble signal and for activating the first receiver and halting the operation of the second receiver when the demodulator unit completes the demodulation of the I-signal and Q-signal. | 08-23-2012 |
| 20120214435 | Method and Apparatus for Downconverting a Plurality of Frequency Modulated Signals from a Carrier Frequency to Baseband - Circuits, systems, and methods are disclosed for controlling multiple antenna receive paths in a wireless communication device. In some embodiments, the circuit may include a pair of receiving antennas, a first receive path including a VCO coupled to receive a PLL signal and a first mixer coupled to receive a first signal from the VCO and a signal from one of the antennas, and a second receive path integrated separately from the first receive path including a second mixer coupled to receive a second signal from the VCO and a signal from the other antenna. By utilizing the output of the VCO to tune the first and second mixers in the first and second receive paths to the same phase and frequency, control of the multiple antenna receive paths may be optimized. | 08-23-2012 |
| 20150326419 | RADIO SYSTEM FOR SIMULTANEOUS MULTI-CHANNEL RECEPTION - A radio communication system includes a frequency synthesizer, a radio frequency (RF) front end, a first receiver, and a second receiver. The frequency synthesizer is configured to generate an oscillation signal, and the RF front end is configured to receive a detected RF signal and apply the oscillation signal to downconvert the RF signal to an intermediate frequency (IF) signal. More particularly, the first receiver, coupled to the RF front end, is configured to extract, from the IF signal, information wirelessly transmitted by a first RF transmitter on a first frequency channel. The second receiver, coupled to the RF front end, is configured to extract, from the IF signal concurrently with the extraction of signal information by the first receiver, information wirelessly transmitted by a second RF transmitter on a second frequency channel. | 11-12-2015 |
