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公开(公告)号：US20250047400A1
公开(公告)日：2025-02-06
申请号：US18705148
申请日：2022-10-25
Applicant: iBiquity Digital Corporation
Inventor： Janet Peyla , Russell Iannuzzelli
Abstract: A method comprising: at an importer of an IBOC digital radio broadcasting system: establishing a data link to an audio client configured to buffer audio from an audio source over a buffering duration, to produce buffered audio; receiving, from the audio client, an indication of the buffering duration; identifying a logical channel of an IBOC waveform assigned to the audio client and configured to transmit PDUs of the audio at a PDU rate; computing a quantized number of PDUs that is greater than one into which the buffered audio is to be divided at the audio client based on the buffering duration and the PDU rate; sending, to the audio client, an indication of the quantized number of the PDUs; and upon sending importer data requests to the audio client over the data link, receiving, from the audio client, client data responses each including the quantized number of the PDUs.
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公开(公告)号：US20230224056A1
公开(公告)日：2023-07-13
申请号：US18183724
申请日：2023-03-14
Applicant: iBiquity Digital Corporation
Inventor： Russ Mundschenk , Harvey Chalmers
Abstract: A method comprises, at a hybrid radio receiver configured to recover audio content separately from a broadcast radio signal and from a wireless network connection, receiving a reception metric that indicates audio quality of the audio content in the broadcast radio signal at any given time. The method further comprises, deriving, from fluctuations of the reception metric over time, fluctuation indicators that indicate audio quality fluctuations that are likely noticeable to a listener. The method further comprises deriving a switching decision to use the broadcast radio signal or the wireless network connection as a source of the audio content based on a previous switching decision and the fluctuation indicators to introduce hysteresis into the switching decision, and selecting the broadcast radio signal or the wireless network connection as the source of the audio content based on the switching decision.
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公开(公告)号：US10826634B2
公开(公告)日：2020-11-03
申请号：US16402306
申请日：2019-05-03
Applicant: Ibiquity Digital Corporation
Inventor： Jason Kyle Carlock , Robert Michael Dillon
Abstract: A system comprises an intermediate communication platform that provides an interface to an Internet network; and a first server including: a port operatively coupled to the intermediate communication platform, processing circuitry, and a service application for execution by the processor. The service application is configured to: receive audio content recognition information from a first radio receiver of multiple radio receivers via the intermediate communication platform, wherein the audio content recognition information identifies audio content received by the first receiver in a radio broadcast; determine audio metadata associated with the received audio content recognition information; and send the audio metadata to the multiple radio receivers via the intermediate communication platform.
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公开(公告)号：US10727980B2
公开(公告)日：2020-07-28
申请号：US15983244
申请日：2018-05-18
Applicant: Ibiquity Digital Corporation
Inventor： Paul J. Peyla , Brian W. Kroeger , Jeffrey S. Baird
Abstract: A radio transmitter comprises transmitting circuitry and processing circuitry. The transmitting circuitry broadcasts a frequency modulation (FM) in-band on-channel (IBOC) radio signal, wherein the FM IBOC radio signal includes multiple subcarriers grouped into multiple frequency partitions. The processing circuitry is configured to receive input bits for transmitting; encode and puncture the input bits using forward error correction (FEC) encoding; distribute encoded input bits between a main encoded component and a backup encoded component, wherein encoded bits of the backup encoded component are delayed for a specified duration relative to encoded bits of the main encoded component; allocate the encoded input bits of the main and backup encoded components into frequency diverse sidebands of the FM IBOC radio signal; and modulate the encoded input bits for transmitting using the frequency diverse sidebands of the FM IBOC radio signal, wherein the modulation is a type of quadrature amplitude modulation (QAM).
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公开(公告)号：US20200153522A1
公开(公告)日：2020-05-14
申请号：US16741902
申请日：2020-01-14
Applicant: Ibiquity Digital Corporation
Inventor： Robert Michael Dillon
Abstract: A system comprises a first server including a port, a memory, a processor operatively coupled to the port and memory, and a service application for execution by the processor. The service application is configured to: receive identification information related to an over-the-air radio broadcast via the port of the first server, wherein the identification information is transmitted to the first server using a radio broadcast receiver remote from the first server; communicate a request for automatic content recognition (ACR) of an Internet-based streaming version of the over-the-air radio broadcast; and receive metadata associated with the over-the-air radio broadcast in response to the request and initiate transmission of the metadata to the radio broadcast receiver.
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Patent Agency Ranking
公开(公告)号：US10581539B2
公开(公告)日：2020-03-03
申请号：US16299715
申请日：2019-03-12
Applicant: Ibiquity Digital Corporation
Inventor： Desmond S Fuller , Paul Venezia , Harvey Chalmers
Abstract: Systems, methods, and processor readable media are disclosed for detection of signal quality problems and errors in digital radio broadcast signals. First monitoring equipment is located in an over-the-air coverage area of a first radio station. Second monitoring equipment is located in an over-the-air coverage area of a second radio station. The first and second monitoring equipment are configured to receive digital radio broadcast signals from the respective first and second radio stations. A computing system is configured to receive data from the first monitoring equipment and the second monitoring equipment, the data being indicative of one or more attributes of a digital radio broadcast signal received at respective monitoring equipment. The computing system analyzes received data to detect a signal quality problem or error in the digital radio broadcast signals received at the first and second monitoring equipment.
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公开(公告)号：US20200025937A1
公开(公告)日：2020-01-23
申请号：US16184440
申请日：2018-11-08
Applicant: iBiquity Digital Corporation
Inventor： Brian KROEGER , Paul J. PEYLA , Steven L. TEIG
Abstract: A method comprises generating for a Global Navigation Satellite System (GNSS) a differential correction map (DCM) representing a non-planar surface of differential corrections that varies across a geographical area represented by the DCM, the differential corrections being based on a reference station constellation of GNSS reference stations having respective locations spanning the geographical area, the GNSS reference stations including physical or virtual reference stations.
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公开(公告)号：US10255926B2
公开(公告)日：2019-04-09
申请号：US15926536
申请日：2018-03-20
Applicant: Ibiquity Digital Corporation
Inventor： Gabriel Olochwoszcz , Ashwini Pahuja
Abstract: A method of processing a digital radio broadcast signal includes: (a) determining a plurality of current correlation sample values representative of a time delay between samples in an analog audio sample stream and samples in a digital audio sample stream; (b) determining a current inversion status; (c) updating a delay history and an inversion status history; (d) checking the current correlation sample values for consistency with a first confidence threshold; (e) if consistency is found in step (d), determining if each of a first plurality of values in the delay history is consistent within a predetermined range of the current correlation sample values; (f) if consistency is found in step (e), determining if a value in the inversion status history is consistent with the current inversion status; and (g) if the consistency is found in step (f), allowing blending of an output to the digital audio sample stream.
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公开(公告)号：US10225070B2
公开(公告)日：2019-03-05
申请号：US15822411
申请日：2017-11-27
Applicant: Ibiquity Digital Corporation
Inventor： Brian W. Kroeger , Paul J. Peyla
Abstract: A method for processing a digital audio broadcast signal in a radio receiver, includes: receiving a hybrid broadcast signal; demodulating the hybrid broadcast signal to produce an analog audio stream and a digital audio stream; and using a normalized cross-correlation of envelopes of the analog audio stream and the digital audio stream to measure a time offset between the analog audio stream and the digital audio stream. The time offset can be used to align the analog audio stream and the digital audio stream for subsequent blending of an output of the radio receiver from the analog audio stream to the digital audio stream or from the digital audio stream to the analog audio stream.
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10.发明授权公开(公告)号：US09986401B2
公开(公告)日：2018-05-29
申请号：US14957797
申请日：2015-12-03
Applicant: iBiquity Digital Corporation
Inventor： Ashruf S. El-Dinary
CPC classification number: H04W4/90 , H04B1/3822 , H04H20/59 , H04H20/62 , H04W4/06 , H04W72/0453
Abstract: Systems and methods are disclosed for communicating an emergency alert message from a digital radio broadcast transmission system of a mobile vehicle to a digital radio broadcast receiver system. A digital radio broadcast signal including first and second data is broadcasted using the digital radio broadcast transmission system to end-user digital radio broadcast receivers. The first data includes an emergency code, and the second data includes an emergency alert message. The digital radio broadcast signal is transmitted at a predetermined frequency that is recognized by the receivers as an emergency notification frequency. The digital radio broadcast signal can be decoded only by receivers located within a localized area in a proximity of the transmission system. The receivers are configured to automatically tune to the emergency notification frequency to receive the digital radio broadcast signal and render the second data based on a detection of the emergency code within the signal.
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