| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 455161100 | Frequency scanning | 54 |
| 20080261547 | Methods and Apparatus for RF Channel Selection in a Multi-Frequency Network - Methods and apparatus for RF channel selection in a multi-frequency network. A method includes identifying selected local operations infrastructures (LOIs) and their neighboring LOIs, generating a neighbor description message (NDM) that identifies the selected LOIs and their neighboring LOIs and associates a descrambling sequence identifier with each RF channel of the selected LOIs and their neighboring LOIs, and distributing the NDM over the selected LOIs. An apparatus includes a message decoder to receive an NDM that identifies RF channels of a first LOI and neighboring LOIs, and wherein each RF channel is associated with a descrambling sequence identifier, and processing logic to detect content acquisition failures, determine a list of RF channels and their associated LOIs that carry desired content, and select a selected RF channel that is associated with a selected LOI that carries the most additional content among the associated LOIs. | 10-23-2008 |
| 20080299925 | Method And System For Processing Channels In A FM Communication System - A method and system for processing channels in a FM communication system are provided. The FM communication system using the method or program may include adjusting a tuning frequency of a FM receiver for scanning and detecting an FM channel based on one or more of knowledge of location of said FM receiver, received signal strength indicator (RSSI), and/or carrier error of a related FM signal. Frequency offsets and channel spacing of the detected FM channels may be derived based on a self measurement routine. The aforementioned information may be preprogrammed, updated from a previous scan, or from external inputs to configure the receiver for subsequent selective tuning. | 12-04-2008 |
| 20090068969 | Power-Aware Selection of Radio Access Technology - Methods and apparatus are disclosed for operating a multi-mode wireless communications device to select a radio access technology (RAT) requiring the lowest energy consumption by the device for a desired operating mode. An exemplary method comprises scanning a plurality of frequency bands to determine a set of available radio access technologies that support the desired operating mode, and evaluating, for each available RAT, RAT-specific system parameters and RAT-specific operating conditions. Based on the evaluation, the RAT requiring the lowest energy consumption by the wireless device for the desired operating mode is selected. | 03-12-2009 |
| 20090068970 | SCANNING FREQUENCY OPTIMIZATION FOR ALTERNATE NETWORK ACCESS IN DUAL MODE WIRELESS DEVICES - A method, information processing system, and wireless device are disclosed for managing network scanning intervals. The method includes detecting a new wireless network coverage area ( | 03-12-2009 |
| 20090197550 | Correlation-based detection in a cognitive radio system - A user equipment senses a plurality of wireless signals it receives; estimates cyclic correlation of the received signals using a multi-variate sign function; determines from the estimated cyclic correlation which ones of the signals are detected based on cyclostationarity present at known cyclic frequencies; and a frequency resource is selected for opportunistic communications based on the frequencies over which were received the signals that were determined to be detected. In specific embodiments, the multi-variate sign function is bivariate; the detected signals are primary user signals and the selected frequency resource avoids frequencies on which they were received; and/or the detected signals are secondary user signals and the selected frequency resource can either avoid those frequencies on which they were received or use those frequencies for the UE's own opportunistic communications. | 08-06-2009 |
| 20090247098 | System and Method for Autoranging in Test Apparatus - A system for receiving signals and performing autoranging is disclosed. The system includes an adjustable attenuator at an input. A mixer combines the input signal with a tuning frequency to generate a mixed signal. The mixed signal is filtered to generate a component of the input signal at the tuning frequency. A signal detector detects the signal level of the input signal and the adjustable attenuator is adjusted in response to the signal level. | 10-01-2009 |
| 20090275299 | FREQUENCY TRACKING FOR A FMR TRANSMITTER - A method and device for transmitting audio data and text data to an RDS capable radio receiver by a wireless device is disclosed. The device includes a receiver for scanning a frequency range to detect an available radio frequency based on predetermined criteria. The device also includes a transmitter for transmitting data on a detected frequency that comprises RDS message data. Other systems and methods are also disclosed. | 11-05-2009 |
| 20090298452 | METHOD FOR SCANNING FREQUENCY, RECEIVER, AND COMPUTER-READABLE RECORDING MEDIUM - A receiver according to the present invention has a reception unit which receives reception signals; a storage unit which stores a band table, in which a plurality of frequency bands serving as scanning targets are registered so that the frequency bands correspond to band identifiers, respectively, and a link table, in which any number of the band identifiers registered in the band table are registered so that the band identifiers correspond to a link identifier; a control unit which, when the link identifier is specified, refers to the band table and the link table, obtains the frequency bands corresponding to the link identifier, carries out scanning within the frequency band for each of the frequency bands, and sequentially sets reception frequencies of the reception signals; and a frequency synthesizer. | 12-03-2009 |
| 20100029231 | Look -Up Table for Control of Power Output From FM Transmitters - A system and method for optimizing the performance of RF devices having a transmitter and an antenna that function at multiple frequencies. Due to regulatory limits on radiation output, and because antenna gain varies with frequency, transmitter power has been constrained by the highest efficiency point of the antenna. According to the present invention, the optimal power setting is empirically determined for each frequency, and stored in a data table. When an operational frequency is selected for the RF device, the data table is consulted to determine the appropriate power setting for the transmitter. | 02-04-2010 |
| 20100087158 | FULL FREQUENCY SCANNING METHOD AND CHANNEL PARAMETER ADJUSTING METHOD FOR SMART ANTENNA - An adjusting method for a smart antenna is provided. The adjusting method divides all possible reading directions of the smart antenna into a plurality of scanning directions and a plurality of idle directions by a first form. In searching for the optimal parameters of each of a plurality of communication channels, the adjusting method firstly adjusts the reading direction according to the plurality of scanning directions, and then adjusts the reading direction according to the plurality of idle directions. Further, the first form remain updated in accordance the process of searching for the optimal parameters of each of the communication channels, thus effectively saving the time spent on the full frequency scanning process. Further, the optimal parameters of each of the communication channels are recorded in a second form, so that the smart antenna is regulated according to the second form. | 04-08-2010 |
| 20100184395 | Adaptive Channel Scanning For Detection And Classification Of RF Signals - An approach and apparatus for adaptive scanning for detection and classification of an RF signal. Time-domain and frequency-domain information are acquired and processed over a broad band of frequencies segmented into channels to produce signal features. The signal features are classified using a signal classifier into signal discriminants, from which a signal of interest is located and identified. Subsequent channel scans then place an increased relative or absolute dwell time on the channel believed to contain the signal of interest. | 07-22-2010 |
| 20100197253 | BROADCASTING RECEIVER, BROADCASTING IDENTIFICATION METHOD, BROADCASTING IDENTIFICATION PROGRAM, AND RECORDING MEDIUM THEREFOR - While sequentially changing the selected channel, a digital broadcast judgment part collects level value V | 08-05-2010 |
| 20100311370 | RADIO WAVE RECEIVER - Disclosed is a radio wave receiver including an antenna to receive a radio wave, a tuning unit to switch a frequency characteristic of the antenna in a stepwise fashion, an oscillation unit to oscillate the antenna and a circuit section of the tuning unit, a receiving process unit to carry out a signal process by extracting a signal of a desired wave among received signals which are received from the antenna, a search control unit in which the oscillation unit is made to generate an oscillation signal at the circuit section and in which the oscillation signal searches a setting condition of the tuning unit which is extracted in the receiving process unit by switching a setting of the tuning unit and a search range deciding unit to selectively decide an adjustable range in which the switching of the setting of the tuning unit is carried out by the search control unit so as to be a specific adjustable range which is a portion of an entire adjustable range of the tuning unit corresponding to a frequency of the desired wave. | 12-09-2010 |
| 20110003568 | APPARATUS AND METHOD FOR SEARCHING RADIO CHANNEL IN A PORTABLE TERMINAL - An apparatus and method for searching for an improved radio broadcast in a portable terminal are provided. The apparatus includes a radio function performance unit. If an input for a radio broadcast channel search is detected while listening to a radio broadcast, the radio function performance unit changes from an original previously listened radio broadcast to a radio broadcast corresponding to the detected input. If the input for the radio broadcast channel search is released, the radio broadcast channel is restored to the original previously listened radio broadcast channel. | 01-06-2011 |
| 20110165850 | SYSTEMS AND METHODS FOR MULTI-CHANNEL SEQUENTIAL DETECTION IN COGNITIVE RADIO SYSTEMS - Systems and methods for detecting unoccupied channels for a multi-channel cognitive radio system are described. To detect unoccupied channels, truncated sequential detection processes are employed that can use a dynamically extended truncation time that is based on early completion of detection processes applied to preceding channels. | 07-07-2011 |
| 20120088462 | DETECTING, IDENTIFYING, REPORTING AND DISCOURAGING UNSAFE DEVICE USE WITHIN A VEHICLE OR OTHER TRANSPORT - A system, method and computer readable medium comprised of in-vehicle passive monitoring and information management system elements which together detect, identify, report and discourage unsafe wireless device use by the operator of a vehicle. An in-vehicle monitoring device determines the vehicle's operational state and location, identifies wireless device transmitter emissions within the vehicle and communicates to a remote information management system using a wireless network, or after-the-fact, using a local network to a locally-installed software version of the information management system. The information management system collects information retrieved from in-vehicle devices and correlates this information with other database information to provide users with timely alerts, tracking, and records of unsafe wireless device use. | 04-12-2012 |
| 20120157025 | METHOD AND APPARATUS FOR SCANNING CHANNEL IN BROADCAST RECEIVER - A method for scanning a channel in a broadcast receiver is provided. In the method, a broadcast area corresponding to a current position is derived from a database (DB). When a valid channel list for the derived broadcast area exists in the DB is determined, broadcasting using the information of the valid channel list. However, when the valid channel list for the derived broadcast area does not exist, a search for a channel for the derived broadcast area is initiated. | 06-21-2012 |
| 20120329413 | METHOD FOR PROVIDING RADIO CHANNEL LIST AND MOBILE TERMINAL SUPPORTING THE SAME - A method for providing a radio channel list and a mobile terminal supporting the method are disclosed. The mobile terminal includes a radio module for performing a radio channel search and for supporting radio broadcast reception, a radio antenna that serves as an antenna for the radio module, a switch placed between the radio module and the radio module, and a control unit for controlling a process of generating a first channel list of ineffective radio channels by performing radio channel search while the radio antenna is disconnected from the radio module by the switch, generating a second channel list of effective radio channels by performing radio channel search while the radio antenna is connected to the radio module by the switch, creating a valid radio channel list by removing entries of the first channel list from the second channel list, and providing the created valid radio channel list. | 12-27-2012 |
| 20140220918 | AIRCRAFT RADIO WITH IMPROVED STANDBY PERFORMANCE - An aircraft radio comprises a receiver, an audio output, and a processing element. The receiver is tuned to a first radio frequency which provides a first audio signal and a second radio frequency which provides a second audio signal. The audio output provides an audio signal to a listening device. The processing element is coupled to a memory element and is configured to tune the receiver to the first radio frequency for a first time period, present the first audio signal to the audio output during the first time period, tune the receiver to the second radio frequency for a second time period to detect presence of the second audio signal, and present audio derived from the first audio signal to the audio output during at least a portion of the second time period. | 08-07-2014 |
| 455161200 | With processor control | 6 |
| 20080248769 | SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD, PROGRAM, AND RECORDING MEDIUM - An IC chip allows first communication for performing communication with all of the other IC chips, and second communication for performing communication while restricting communication parties. That is to say, the IC chip performs sending/receiving signals with a new communication arrangement with both the first communication which is a broadcasting arrangement and the second communication which is a communicatory arrangement. This enables the function upgrading electronic equipment to be performed easily, and enables flexible signal processing with a new communication arrangement. | 10-09-2008 |
| 20090247099 | Method and apparatus for dynamically adapting FM tuner sensitivity to a local environment for a single-tuner system - A method of operating a single-tuner radio includes tuning into a first frequency. A pause in a first signal associated with the first frequency is detected. Tuning is switched from the first frequency to a second frequency. A signal quality metric for the second frequency is measured. Tuning is switched from the second frequency to the first frequency. | 10-01-2009 |
| 20100240333 | METHOD AND APPARATUS FOR PROGRESSIVELY SCANNING CHANNELS - A method for progressively scanning channels first checks whether all channel scanning tasks are completed so as to determine a channel that will be scanned first. During the scanning process, the method records a channel as a last scanned channel after completing a channel scanning task for the channel. In addition, the method scans a channel with a valid service set identifier to increase the possibility of detecting hidden access points. | 09-23-2010 |
| 20100279637 | Apparatus and Method for Using Motion Sensor Data to Select Full Band Scans - An apparatus and method for determining whether to perform a full band scan by using motion sensor data comprising determining if a user equipment has been stationary since the full band scan was last performed; determining if the user equipment has skipped full band scans more times than a skipped threshold; and if the user equipment has skipped full band scans more times than the skipped threshold, performing a full band scan, or if the user equipment has not skipped full band scans more times than the skipped threshold, performing a partial band scan or performing no scan. | 11-04-2010 |
| 20110086602 | SEQUENTIAL SENSING SCHEME FOR COGNITIVE RADIO - A method and system for determining whether a given electromagnetic frequency is in use. An incoming signal is sampled and a test statistic is calculated based on the magnitude of the received samples and a predetermined constant. A determination is then made regarding whether the frequency is in use, based on whether the test statistic has exceeded a threshold. | 04-14-2011 |
| 20130288626 | RADIO SCANNER FOR SPORTING EVENTS - A scanner for monitoring signals at one or more frequencies having a processor for performing various functionalities of the scanner in accordance with a set of instructions including a menu of selectable menu items; a display for displaying the menu items; and at least one variable selector operatively coupled to the processor for selecting menu items. The scanner also includes a receiver for receiving serial data regarding an event from a local transmitter. | 10-31-2013 |
| 455161300 | Using signal strength or quality | 18 |
| 20080200137 | Program Diversity - A method for receiving high frequency signals, wherein several receiver antennas receive said signals and transmit the signals of one antenna to a receiver, representing a selectable program content. It is possible to select at least one other antenna which received signals with the same program content but with better signal properties. According to the invention, the signals received by at least one antenna are examined for the data content thereof and it is possible to switch from one signal received by an antenna to another signal received by an antenna if the data content of one signal corresponds to the data content of the other signal or if, when the signals received by at least two antennas are examined for the data content thereof, it is possible to switch to another signal received by another antenna if the data content of the signal that is received by one antenna corresponds to the content of the other signal received by another antenna. | 08-21-2008 |
| 20080214130 | Systems and methods for determining Sensing Thresholds of a Multi-Resolution Spectrum Sensing (MRSS) technique for Cognitive Radio (CR) Systems - Systems and methods may be provided for threshold determinations for spectrum sensing. The systems and methods may include receiving a false alarm rate, where the false alarm rate is associated with false occupancy identifications of a spectrum segment, determining a noise floor as a function of a noise figure and characteristics of a multi-resolution spectrum sensing (MRSS) window, and calculating a sensing threshold based at least in part upon the false alarm rate and the noise floor. The systems and methods may also include determining whether a portion of an RF spectrum is occupied based at least in part on the calculated sensing threshold. | 09-04-2008 |
| 20090143035 | Method for automatic frequency range and step selection using region signature for a digital AM/FM tuner - A method of configuring a tuner includes scanning at least one range of radio frequencies, measuring a signal quality metric for each of a plurality of the frequencies, and selecting a set of operational frequencies for the tuner. The selecting step is dependent upon the measuring step. | 06-04-2009 |
| 20090253392 | Method for the optimization of channel scanning function in a telecommunication network for mobile terminals - A telecommunications network for mobile terminals, in particular a wireless LAN network, includes a plurality of network access points defining a network coverage area and each one associated with a respective transmission channel; at least one mobile terminal adapted to move inside the coverage area and configured for performing a transmission channels scanning; a terminal locating server, configured for determining a position in which the terminal must perform the scanning, for determining a set of channels adapted to be received in the position with predetermined transmission characteristics, and for communicating such set of channels to the mobile terminal, so that the scanning, for example, for tracking or handover purposes, can be performed on a limited number of channels, thereby increasing the useful time for providing telecommunication services. | 10-08-2009 |
| 20090253393 | Diversity tuned mobile set-top box - Mobile, diversity tuned set-top boxes. The mobile set-top boxes described herein comprise a housing, a demodulator having a plurality of tuning circuits, and an antenna having antenna elements. Each antenna element inputs modulated signal to the plurality of tuning circuits in a switched manner, and the antenna elements are reticulatable with the housing to first and second positions. | 10-08-2009 |
| 20090311982 | FREQUENCY MODULATION (FM) CLEAR CHANNEL SCANNING SYSTEM AND METHOD OF USING SAME - A scan system receives signals within a band from an antenna and divides the band into sub-bands and scans the channels of each sub-band to determine a candidate channel based on the lowest figure of merit (FOM) and includes an on-channel selection block responsive to a received digital signal and operative to select only the on-channel frequencies and to substantially disregard the out-of-channel frequencies from the digital signal. The scan system generates a FOM on-channel signal representing a measurement of the signal quality of the on-channel signal and includes an out-of-channel selection block responsive to the digital signal and operative to select only the out-of-channel frequencies and to substantially disregard the on-channel frequencies from the digital signal and operative to generate a FOM out-of-channel signal representing a measurement of the signal quality of the out-of-channel signal. | 12-17-2009 |
| 20100029232 | Method for Searching for Signals Among Interference Signals in a Multi-Channel Radio Receiver - In a method for searching for signals among interference signals in a multi-channel radio receiver, at least two different data signals are transmitted on at least one physical channel of a radio system to a common receiver. The search for a signal is initiated on any channel, starting with a sequential search of a useful signal by measuring the current signal strength in the form of the RSSI value; a search is made for a signal criterion of the signal and when said criterion has been identified, the measured RSSI value is compared with a predefined RSSI threshold value; if the RSSI threshold value is exceeded, the search for a signal is switched to a search for a data frame and if a data frame is found, the useful data is read; if no signal criterion is identified, if the RSSI threshold value is not exceeded and if no data frame is found, the procedure is interrupted and a new search operation is initiated once a new RSSI threshold value has been defined. The invention is particularly suitable for radio transmission systems in motor vehicles to implement RKE and TPMS functions and for multi-channel transmissions, used for example in remote metering and remote control systems. | 02-04-2010 |
| 20100240334 | Broadcast Receiver and Method for Regulating the Same - A broadcast receiver includes a tuner circuit and a demodulator circuit. The tuner circuit tunes a radio frequency (RF) signal to output an intermediate frequency (IF) signal. The demodulator circuit demodulates the IF signal from the tuner circuit and outputs a command signal based on the quality of the IF signal, for changing a take over point (TOP) value, preset in the tuner circuit, at which one amplitude gain control (AGC) stopping and another taking over. A method for regulating a broadcast receiver is also disclosed herein. | 09-23-2010 |
| 20110111714 | METHOD AND SYSTEM FOR FALSE FREQUENCY LOCK FREE AUTONOMOUS SCAN IN A RECEIVER - Method and system for false lock free autonomous scan in a receiver is disclosed. The method includes identifying a presence of a desired signal to avoid false frequency lock in a Frequency Modulation receiver. The method includes receiving a signal. The method further includes identifying the desired signal, if a first energy is above a first threshold. The method also includes identifying the desired signal, if an Intermediate Frequency count is below a second threshold. The method includes identifying the desired signal, if a second energy of the signal is above a third threshold. The method includes identifying the desired signal, if an absolute difference between a first Received Signal Strength Indication (RSSI) value and a second RSSI value of the signal is below a fourth threshold. The method includes determining a third energy. The method includes identifying the desired signal, if the third energy is below a fifth threshold. | 05-12-2011 |
| 20120071124 | WAKE-UP METHOD FOR A MULTI-CHANNEL RECEIVER AND MULTI-CHANNEL WAKE-UP RECEIVER - A wake-up method for a multi-channel receiver comprises the following steps: checking for activity on every available channel by switching from one channel to the next thereby activating and subsequently deactivating one channel after the other; when activity is detected at least on one of the available channels, switching on all channels, measuring a respective received signal strength in every channel and performing a comparison of received signal strengths between all channels; and selecting the channel with the highest received signal strength. Further a multi-channel wake-up receiver is presented. | 03-22-2012 |
| 20120122413 | RADIO RECEIVER - A radio receiver receives a broadcast signal and generates an RF signal, generates an IF signal from the RF signal, detects the electric field intensity and the frequency of the IF signal, detects the IF signal and generates a detected signal, detects the intensity of a noise signal that is a harmonic component of a digital signal that exists in a certain specific frequency band from among the detected signals, determines that the broadcast signal includes a desired analog broadcast signal when the electric field intensity of the IF signal is equal to or larger than a predetermined electric field intensity, the frequency is within a predetermined frequency range, and also the signal intensity detected by the noise signal detection unit is equal to or smaller than a predetermined value, and then performs a control to stop a search. | 05-17-2012 |
| 20120309334 | METHOD AND SYSTEM FOR AUTOMATIC FREQUENCY CONTROL OPTIMIZATION - A method and apparatus for automatic frequency control in a receiver of a wireless device, the method determining a channel estimation for a received signal; calculating a signal to noise ratio for the channel estimation; applying a weighting factor determined based on the calculated signal to noise ratio for the channel estimation to the channel estimation to create a weighted channel estimation; and supplying the weighted channel estimation to a voltage controlled oscillator. | 12-06-2012 |
| 20130029621 | RADIO RECEIVER APPARATUS - A radio receiver apparatus calculates all frequencies to be estimated as spurious frequencies in the reception frequency band by performing addition and subtraction operations on frequencies of repeated combinations formed from frequencies of a plurality of intensive electric field station, and controls the spurious frequency not to be preset to the radio receiver apparatus even though signal intensity of a received signal having the spurious frequency exceeds a predetermined threshold. | 01-31-2013 |
| 20140038537 | METHOD AND APPARATUS FOR UTILIZING MODULATION BASED AUDIO CORRELATION TECHNIQUE FOR MAINTAINING DYNAMIC FM STATION LIST IN SINGLE TUNER VARIANT AND ASSISTING ALTERNATE FREQUENCY SWITCHING METHODOLOGY IN SINGLE TUNER AND DUAL TUNER VARIANTS - A method of operating a single-tuner radio includes tuning into a first frequency. A pause in a first signal associated with the first frequency is detected. Tuning is switched from the first frequency to a second frequency during the pause. Fieldstrength, multipath, adjacent channel energy, frequency offset and FM modulation for the second frequency are measured. Tuning is switched from the second frequency to the first frequency. Tuning is switched from the first frequency to the second frequency dependent upon the measuring step. | 02-06-2014 |
| 20140302805 | Apparatus and Method for Scanning Signals - Apparatus and method are provided. The solution comprises controlling ( | 10-09-2014 |
| 20140323070 | AUTOMATIC FM RADIO STATION UPDATE - A method comprises determining, by a radio, whether a current preferred radio station currently tuned to by a radio is experiencing a faded signal. Based on determining that the current preferred radio station is experiencing a faded signal, the method further includes automatically selecting, by the radio, a replacement preferred radio station. A radio with such capabilities is also disclosed. | 10-30-2014 |
| 20140357209 | MESSAGING DEVICES AND METHODS - An electronic messaging device includes a receiver configured to receive a message at one of a first operational frequency and second operational frequency. The messaging device can operate using a time synchronous protocol and can receive commands through over-the-internet-programming (OTIP) and over-the-air-programming (OTAP). | 12-04-2014 |
| 20160099735 | METHOD AND APPARATUS FOR SENSING INTER-MODULATION TO IMPROVE RADIO PERFORMANCE IN SINGLE AND DUAL TUNER - A method of performing alternate frequency switching in a radio includes tuning the radio to a primary frequency. A candidate alternate frequency is identified. It is determined whether the candidate alternate frequency is a third order inter-modulation artifact. Tuning is switched from the primary frequency to the candidate alternate frequency only if it is determined in the determining step that the candidate alternate frequency is not a third order inter-modulation artifact. | 04-07-2016 |
| 455164100 | With automatic frequency control | 5 |
| 20100311371 | RADIO WAVE RECEIVER - A radio wave receiver having an antenna for receiving a radio wave; a tuning unit for switching a frequency characteristic of the antenna in a stepwise fashion; an oscillation unit for oscillating a circuit section including the antenna and the tuning unit; a receiving process unit for executing a signal process by extracting a signal of a desired wave among received signals received by the antenna; and a search control unit for causing the oscillation unit to generate an oscillation signal at the circuit section and for searching, by switching a setting of the tuning unit, a setting condition of the tuning unit at which condition the oscillation signal is extracted by the receiving process unit; wherein the search control unit changes the number of minimum switching steps to be taken at a time or set pattern according to an adjustable range of the tuning unit. | 12-09-2010 |
| 20120315866 | OSCILLATORS HAVING ARBITRARY FREQUENCIES AND RELATED SYSTEMS AND METHODS - Systems and methods for operating with oscillators configured to produce an oscillating signal having an arbitrary frequency are described. The frequency of the oscillating signal may be shifted to remove its arbitrary nature by application of multiple tuning signals or values to the oscillator. Alternatively, the arbitrary frequency may be accommodated by adjusting operation one or more components of a circuit receiving the oscillating signal. | 12-13-2012 |
| 20150365074 | METHOD AND APPARATUS FOR UTILIZING MODULATION BASED AUDIO CORRELATION TECHNIQUE FOR MAINTAINING DYNAMIC FM STATION LIST IN SINGLE TUNER VARIANT AND ASSISTING ALTERNATE FREQUENCY SWITCHING METHODOLOGY IN SINGLE TUNER AND DUAL TUNER VARIANTS - A method of operating a single-tuner radio includes tuning into a first frequency. A pause in a first signal associated with the first frequency is detected. Tuning is switched from the first frequency to a second frequency during the pause. Fieldstrength, multipath, adjacent channel energy, frequency offset and FM modulation for the second frequency are measured. Tuning is switched from the second frequency to the first frequency. Tuning is switched from the first frequency to the second frequency dependent upon the measuring step. | 12-17-2015 |
| 20160182173 | USE OF NAVIGATION ROUTE FOR SMART FM/AM SCANNING | 06-23-2016 |
| 455164200 | Processor controlled (AFC) | 1 |
| 20090047919 | RADIO WITH AUTOMATIC TUNING TO MODULATED AUDIO DEVICE - A system and method for automatically tuning an entertainment system to interface with a modulated audio device includes a processor in communication with a tuner, an audio output device and a memory unit containing processor executable instructions. The processor executable instructions of the memory unit configure the processor to tune the tuner to a predetermined frequency, determine if a signal is present at the predetermined frequency and output an audio signal based on the predetermined frequency to the audio output device if a signal is present at the predetermined frequency. | 02-19-2009 |
| 455165100 | With frequency synthesizer | 2 |
| 20090011733 | Radio Communication Device - A PLL circuit ( | 01-08-2009 |
| 20140038538 | METHOD AND TELECOMMUNICATIONS DEVICE FOR ANALYZING MULTIPLE CARRIERS IN RADIO FREQUENCY SIGNAL - An embodiment of the invention provides a method of processing a radio frequency (RF) signal. According to the embodiment, the RF signal is first synthesized with a synthesis signal to generate a synthesized signal. Then, the synthesized signal is filtered with a filtering bandwidth to generate a filtered signal. Next, the filtered signal is converted into digital data. Then, the digital data is processed to analyze a plurality of carriers within the filtering bandwidth as presented in the RF signal. | 02-06-2014 |
| 455166100 | With channel skipping selection | 1 |
| 20140364075 | Channel Monitoring With Plural Frequency Agile Receivers - A system and method to efficiently use a plurality of ‘receivers’ to monitor a larger plurality of ‘sources’ for audio content. Upon identifying that a source is active, one of the plural receivers is assigned to convey the content to a destination. All other receivers are prevented from monitoring that specific source for the duration of its activity, but continue to monitor the remaining sources. ‘Source’ includes any source of information containing audio content. ‘Receiver’ includes any device capable of selectively conveying such content, including physical switches, hardware or software multiplexers, microphones, radio receivers, or any other means of obtaining such content. | 12-11-2014 |
| 455168100 | Multiband | 2 |
| 20090111407 | Terminal and Associated Transducer Assembly and Method for Selectively Transducing in at Least Two Frequency Bands - A terminal is provided for selectively communicating in at least two frequency bands. The terminal includes an antenna transducer including a first port and a second port, where the antenna transducer is capable of selectively transducing first radio signals (e.g., low power radio frequency (LPRF) signals) to and/or from the first port, and/or second radio signals (e.g., global positioning system (GPS) signals) to and/or from the second port. In this regard, the antenna transducer is capable of transducing first radio signals such that an impedance at the second port approaches a short circuit or an open circuit, and capable of transducing second radio signals such that an impedance at the first port approaches an open circuit. An associated communication assembly and method for selectively communicating in at least two frequency bands are also provided. | 04-30-2009 |
| 20160087656 | TRANSMITTER AND METHOD OF PROCESSING TRANSMISSION SIGNALS - A transmitter and method are provided for processing a transmission signal. The transmitter includes an FEM that switches a plurality of band signals for a first and second communication scheme, wherein the band signals for the first communication scheme include a first HB signal, a second HB signal, a first LB signal, and a second LB signal, and the band signals for the second communication scheme include a third LB and a third HB signal; a first PAM including a first power amplifier that amplifies the third HB signal, a second power amplifier that amplifies the first HB signal, and a third power amplifier that amplifies the first LB signal; and a second PAM including a fourth power amplifier that amplifies the third LB signal, a fifth power amplifier that amplifies the second HB signal, and a sixth power amplifier that amplifies the second LB signal. | 03-24-2016 |
| 455169100 | With particular variable voltage or current tuning | 1 |
| 20160204812 | DIRECT ENVELOPE DETECTION METHOD OF RECEIVER FROM RESONANCE ANTENNA USING MAXIMUM VOLTAGE TRANSFER TECHNIQUE AND RECEIVERS THEREOF | 07-14-2016 |
