Abstract:
A receiver unit in a digital broadcast system receives a broadcast signal comprising content segments and control data, and generates an output signal using the content segments and previously stored content segments. The previously stored content segments are retrieved from a local memory device using the control data for playback and can be inserted among received content segments.
Abstract:
Systems and methods are presented to facilitate caching of programming from broadcast and/or content streaming services to a user device for local playback. In addition, metadata can be provided to guide the user in selecting, caching, or playing the cachable content. In some exemplary embodiments, a receiver or other user device can automatically select the programming to be cached based on a user's historical topic interest and listening history. In some exemplary embodiments, the metadata can also include DRM information that can limit the ability of a user to playback the content, so as to comply, if necessary, with operative legal requirements related to usage of the content.
Abstract:
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.
Abstract:
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.
Abstract:
Satellite provisioning of cell service for an in-vehicle telematics control unit (“TCU”) is presented. Thus, a truly carrier independent TCU is facilitated. A TCU may be provided with a cellular modem and two or more SIM cards, each associated with a cellular carrier that has approved the modem and their SIM card. The TCU may also be provided with connectivity to a satellite, such as, for example, via an SDARS antenna and processing module, that can receive and process SDARS audio and data signals. When a user desires to change from one of the cellular carriers to another, provisioning data for the new carrier's SIM, now already in the telematics system, may be (i) sent over the satellite, (ii) received at the satellite antenna, and (iii) passed to a telematics processor. The telematics processor, in turn, may (iv) deliver the provisioning data to the cell modem, which may then (v) program the appropriate SIM with the provisioning data, thus allowing cellular communications on the new carrier's network. The inventive functionality facilitates easily switching carriers as one crosses a border, or when a new vehicle is imported to a given country, and cellular service then or there available on one of the approved carriers is easily chosen by a user and turned on. The TCU may also include a Wi-Fi module, configured to receive provisioning instructions or data over a Wi-Fi network.
Abstract:
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 de-livery, 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 re-ceiver, 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.
Abstract:
Systems and methods are provided for increasing 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 traffic information, and distribution of traffic information to end-user consuming devices over one or more satellite based broadcast transport medium and data communications network. Nationwide traffic service which can be encoded and distributed through a single broadcast service may be described herein. Aggregating traffic data from segments of multiple location intervals, into predefined and predetermined flow vectors, and sending flow vectors within a data stream to users may be described herein. Confidence levels obtained from raw traffic data can (i) be disclosed to drivers/users to supplement a very low signal (or no signal) speed and congestion report, and (ii) used in various system algorithms that decide what local anomalies or aberrations to filter out as noise.
Abstract:
System, devices and methods are provided to automatically initiate an enhanced 911 (E911) call from a telematics control unit (TCU) (e.g., a TCU deployed with cellular modem or mobile phone in a vehicle) to an answering point (e.g. public safety answering point or access point (PSAP)). A wireless carrier (e.g., mobile service center (MSC)) employs a positioning determining entity (PDE) and algorithm to improve caller location determination using information provided by the TCU (e.g., GPS and dead reckoning information generated at the vehicle) and network location information when needed, and provides PDE estimated location of the caller to the PSAP (e.g., using a data channel and optionally a voice channel) to mitigate errors in TCU location data and reduce potentially conflicting location information provided to PSAPs from TCUs and wireless carriers or other phone service providers.
Abstract:
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.
Abstract:
Systems and methods are presented for cross-fading (or other multiple clip processing) of information streams on a user or client device, such as a telephone, tablet, computer or MP3 player, or any consumer device with audio playback. Multiple clip processing can be accomplished at a client end according to directions sent from a service provider that specify a combination of (i) the clips involved; (ii) the device on which the cross-fade or other processing is to occur and its parameters; and (iii) the service provider system. For example, a consumer device with only one decoder, can utilize that decoder (typically hardware) to decompress one or more elements that are involved in a cross-fade at faster than real time, thus pre-fetching the next element(s) to be played in the cross-fade at the end of the currently being played element. The next elements(s) can, for example, be stored in an input buffer, then decoded and stored in a decoded sample buffer, all prior to the required presentation time of the multiple element effect. At the requisite time, a client device component can access the respective samples of the decoded audio clips as it performs the cross-fade, mix or other effect. Such exemplary embodiments use a single decoder and thus do not require synchronized simultaneous decodes.