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公开(公告)号：US20230121278A1
公开(公告)日：2023-04-20
申请号：US17851172
申请日：2022-06-28
申请人： Sirius XM Radio Inc.
发明人： Stuart A. COX , Gary John CONNERS , Todd VANZANDT
IPC分类号： G06F3/0482 , G11B27/10 , H04N5/76 , H04N9/82 , H04L65/60 , H04N21/433 , H04N21/4627 , H04N21/466 , H04N21/472 , H04N21/482 , H04N21/61 , H04L65/611 , H04L65/612 , H04L65/75 , H04L67/568 , H04H40/90 , H04W88/06 , G06N5/02
摘要： Systems and methods for interaction of satellite and Internet protocol features in content delivery systems are presented. Using such systems and methods, the delivery of some content to the same product by Satellite delivery, other content by IP delivery, and still other content by both Satellite and IP delivery can enhance the utility of both the content and the product for an end user and can further optimize the costs and quality of service associated with delivering the content. A method of providing content and data to a combined satellite and IP network receiver is presented, including broadcasting via satellite content and data to the receiver, and sending via an IP based communications network content and data to the receiver, where the content and data provided over the Satellite broadcast enables capabilities of the receiver needed to consume content received by IP delivery, and the content and data provided via IP delivery enables capabilities of the receiver needed to consume content received from the satellite broadcast.
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公开(公告)号：US11463234B2
公开(公告)日：2022-10-04
申请号：US17157083
申请日：2021-01-25
申请人： Sirius XM Radio Inc.
发明人： Carl Scarpa , Edward Schell
摘要： Systems and methods for maintaining synchronization of repeater networks with Global Positioning System (GPS) signals using phase locked loops (PLLs) and based on generation of predicted control words for controlling local oscillator frequencies is described. The predicted control words can be generated based on performing a linear fit of control words generated over a predetermined duration of time. Phase locked loops with additional false GPS pulse identification and GPS signal loss compensation circuitry can enforce a false pulse count threshold and/or an error threshold. The additional circuitry and prediction of control words can overcome errors in GPS receiver outputs and maintain accuracy of signal timings across single frequency networks using inexpensive local oscillators.
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公开(公告)号：US20220006609A1
公开(公告)日：2022-01-06
申请号：US17157083
申请日：2021-01-25
申请人： Sirius XM Radio Inc.
发明人： Carl Scarpa , Edward Schell
IPC分类号： H04L7/033
摘要： Systems and methods for maintaining synchronization of repeater networks with Global Positioning System (GPS) signals using phase locked loops (PLLs) and based on generation of predicted control words for controlling local oscillator frequencies is described. The predicted control words can be generated based on performing a linear fit of control words generated over a predetermined duration of time. Phase locked loops with additional false GPS pulse identification and GPS signal loss compensation circuitry can enforce a false pulse count threshold and/or an error threshold. The additional circuitry and prediction of control words can overcome errors in GPS receiver outputs and maintain accuracy of signal timings across single frequency networks using inexpensive local oscillators.
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公开(公告)号：US20210281461A1
公开(公告)日：2021-09-09
申请号：US17075046
申请日：2020-10-20
申请人： Sirius XM Radio Inc.
发明人： Edward Schell , Carl Scarpa
摘要： Systems and methods for a non-data-aided (NDA) approach to advanced OFDM timing are provided. This approach allows for accurate OFDM symbol timing and synchronization by avoiding inter-symbol interference (ISI) in multipath environments where an earliest arriving signal may not be the strongest signal. The NDA approach may rely on generating and applying a bias correction to a combined correlation result of the multi-path signals.
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公开(公告)号：US11108460B2
公开(公告)日：2021-08-31
申请号：US16168285
申请日：2018-10-23
发明人： Edward Schell , Carl Scarpa , John Goslin
摘要： Systems, algorithms and methods for reclaiming unused portions of a satellite broadcast service's bandwidth for new services, utilizing higher performance coding techniques to yield better throughput, are presented. These systems, algorithms and methods achieve the reclaimed bandwidth in a way that is invisible to a legacy receiver, and that does not interfere with its reception of a legacy signal. In one embodiment, new data may be transmitted within a legacy transmission frame, for example within its cluster structure, using the same modulation and synchronization as used for the legacy data. The new data may be inserted into a channel or other subdivision at a head end. In another embodiment, one or more clusters or subdivisions with only new data may be transmitted, using the same modulation and synchronization as the legacy data clusters, but now employing a higher performing FEC and data interleaving structure on those clusters which contain only new data to yield an increase in available throughput. Finally, in a third embodiment, one or more clusters containing only new data may be transmitted, and in said one or more all new data clusters, different modulation and synchronization may be used then that of the legacy data clusters, thus employing a higher performing FEC and data interleaving structure than that of the legacy clusters. Various combinations of these approaches are also presented, as well as a set of novel receivers, or receiver configurations, to implement them and their combinations.
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公开(公告)号：US11102619B2
公开(公告)日：2021-08-24
申请号：US16358429
申请日：2019-03-19
申请人： Sirius XM Radio Inc.
IPC分类号： H04W12/08 , H04W48/10 , H04L9/32 , H04W4/06 , H04W4/12 , H04W12/06 , H04W12/069 , H04W12/082
摘要： Various multiple methods of data transport, and combinations thereof, may be used to initialize or update conditional access information on various devices. In an integrated device having both a broadcast receiver, such as an SDARS receiver, and a two-way communications transceiver, such as an LTE, 3G, 4G or 5G modem, or the like, conditional access information for the broadcast receiver may be sent to the transceiver, and then passed to the broadcast receiver, or vice versa. Additionally, for example, the broadcast receiver may be sent, over the broadcast communications channel, a “wake-up” message for the two-way transceiver, which message may then be passed to the two-way transceiver, so as to make it ready to receive conditional access information over the two-way communications channel, or vice versa. Moreover, because of the presence of a two-way communications path, various acknowledgements of conditional access status updates received and processed by the broadcast receiver may be sent—thus realizing a significant improvement over the current practice of sending multiple periodic messages over the broadcast channel, to insure (but never have confirmation of) receipt.
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公开(公告)号：US20210143799A1
公开(公告)日：2021-05-13
申请号：US16907885
申请日：2020-06-22
申请人： Sirius XM Radio Inc.
发明人： Carl Scarpa , Robert Joseph Topper
摘要： Systems and methods for performing automatic frequency control are provided. Instead of relying on individual frequency tuners for each channel of a multi-channel receiver system, the present subject matter uses a single frequency tuner for receiving each channel of the multi-channel receiver system. A locked demodulator may be designated as a reference demodulator and frequency offset values associated with the reference demodulator may be applied to other demodulators of the multi-channel receiver. These frequency offset values may be used by individual demodulators of each channel for correcting corresponding frequency offsets.
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公开(公告)号：US20210119847A1
公开(公告)日：2021-04-22
申请号：US16655822
申请日：2019-10-17
申请人： Sirius XM Radio Inc.
发明人： Edward Schell , Carl Scarpa
摘要： Systems and methods for enabling pre-compensation of timing offsets in OFDM receivers without invalidating channel estimates are described. Timing offset estimations may be sent along with the received OFDM symbols for FFT computation and generating a de-rotated signal output. The timing offset estimation may provide a reference point for dynamic tracking of timing for an OFDM signal and estimated based on an integral value associated with the OFDM signal.
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公开(公告)号：US10783777B2
公开(公告)日：2020-09-22
申请号：US14852608
申请日：2015-09-13
申请人： Sirius XM Radio Inc.
摘要： Systems and methods are provided for increasing the geospatial resolution of traffic information by dividing known location intervals into a fixed number of sub-segments not tied to any one map providers format, efficient coding of the traffic information, and distribution of the traffic information to end-user consuming devices over one or more of a satellite based broadcast transport medium and a data communications network. Exemplary embodiments of the present invention detail a nationwide traffic service which can be encoded and distributed through a single broadcast service, such as, for example, an SDARS service, or a broadcast over a data network. Exemplary embodiments include aggregating the traffic data from segments of multiple location intervals, into predefined and predetermined flow vectors, and sending the flow vectors within a data stream to users. Confidence levels obtained from raw traffic data can both (I) be disclosed to drivers/users to supplement a very low signal (or no signal) speed and congestion report, and (ii) can also be used in various system algorithms that decide what local anomalies or aberrations to filter out as noise, or to disclose as accurate information and thus more granularly depict the roadway in question (and use additional bits to do so) as an actual highly localized traffic condition.
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公开(公告)号：US20200077153A1
公开(公告)日：2020-03-05
申请号：US16423909
申请日：2019-05-28
申请人： Sirius XM Radio Inc.
发明人： Stuart A. Cox , Michael A. Barton
IPC分类号： H04N21/482 , H04N21/466 , H04N21/658 , H04N21/475 , H04N21/45 , H04N21/442 , H04N21/262 , H04N21/25 , H04N5/445
摘要： Apparatuses and methods are provided to inform a user of a broadcast stream, which has multiple, concurrently received channels of program content, about recommendations of a subset of the content currently playing across the available channels or to be played within a selected future time period. The subset of content is selected based on user preferences and system data (e.g., program topic and channel affinities among the broadcast content and channels) to recommend a more diverse subset of content than would be discovered if only user preferences were employed to make the selection of recommended content.
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