Abstract:
Système de réception satellite de N signaux comprenant, associé à une antenne deréception satellite, une unité extérieure (outdoor) et une unité intérieure (indoor) relié l'une à l'autre. L'unité extérieure (outdoor) du système comprend un bloc de conversion en fréquence intermédiaire pour transformer les N signaux reçus sur N canaux en N signaux en fréquence intermédiaire, une matrice de commutation NXM, commandée par des signaux issu d'une unité de commande, pour sélectionner pour chacune des M voies de sortie, parmi les N signaux transposés, le signal d'où doit être prélevé l'information, M filtres accordables en fréquence, commandés par des signaux issu de l'unité de commande, associés chacun à une voie pour sélectionner une bande de fréquence correspondant à un unique canal dans la bande de fréquence intermédiaire, un bloc de M tuners et M démodulateurs associés respectivement aux M voies pour extraire les informations des canaux transmis et un bloc de combinaison pour combiner les signaux à transmettre issus des différents démodulateurs.
Abstract:
A portable media player for receiving and storing a satellite digital audio radio service (SDARS) content stream is provided. Also provided are associated devices such as an integrated antenna and docking station, an SDARS receiver module for detachable connection to a player, digital transceiver circuits for connecting an SDARS receiver to various SDARS-ready devices, an SDARS digital antenna, and an SDARS subscription cartridge, as well as methods for operating same.
Abstract:
A method, apparatus and system providing power to Low Noise Block Amplifiers (LNBs) in a satellite signal receiving system wherein at least one receiver provides power to the LNBs. A system in accordance with the present invention comprises a first stage of power regulation, coupled to the at least one receiver in a respective fashion, wherein the first stage of power regulation comprises linear regulation, and a second stage of power regulation, coupled between the first stage of power regulation and the LNBs, wherein the second stage of power regulation comprises a switching power regulator. Another embodiment of the present invention comprises a first stage of power regulation, coupled to the at least one receiver in a respective fashion, wherein the first stage of power regulation comprises a switching power regulator, and a second stage of power regulation, coupled between the first stage of power regulation and the LNBs, wherein the second stage of power regulation comprises a linear regulator.
Abstract:
A satellite communication subscriber device (16) includes a smart antenna (18) for generating antenna beams (30, 32) for receiving signals from at least one satellite, and a receiver (42). The receiver includes a quality metric module (48) for calculating a quality metric on the signals received by each antenna beam. A beam selector (40) is coupled to the smart antenna for selecting the antenna beams. An antenna steering algorithm module (44) runs an antenna steering algorithm (46) for operating the beam selector for scanning the antenna beams, receiving the calculated quality metrics from the receiver for each scanned antenna beam, and comparing the calculated quality metrics. The algorithm selects one of the scanned antenna beams based upon the comparing for continuing to receive signals from the at least one satellite.
Abstract:
Intelligent switching networks for selectively delivering satellite video signals. A network in accordance with the present invention comprises an antenna for receiving the satellite video signals, a plurality of amplifiers, coupled to the antenna, each amplifier receiving and amplifying specific satellite video signals based on an originating satellite for each of the satellite video signals, a multiswitch, having a plurality of inputs and a plurality of outputs, wherein at least some of the inputs are coupled to the plurality of amplifiers in a respective fashion, an interface, coupled to the multiswitch, and at least one Integrated Receiver Decoder (IRD), coupled to the interface, wherein the IRD sends signals to the interface to determine a type of the interface.
Abstract:
A satellite TV broadcasting system comprises: an outward broadcast link to reach each of a plurality of user receiver installations via satellite, and a return link from each of said plurality of users, said return channel being a terrestrial channel via a wide area network (WAN) of which WAN said user receiver installations form a node. The WAN may also support an uplink. A satellite receiver installation is modified with an extra terrestrial antenna for the WAN and a splitter combiner allows the already installed cable link to the satellite receiver to be retained. A residential gateway allows a household LAN and communication enabled devices to be supported via the satellite/LAN infrastructure.
Abstract:
A single cable inter-facility link (16) is provided using an IDU-ODU telemetry interface employing an encoder in the status transmit circuitry (103) and in the control transmit circuitry (102) which encodes the appropriate data by integrating Manchester encoding, a preamble and postamble, and on-off keying to create a unique data packet scheme which is compatible with any existing inter-facility link protocol and which does not interfere with the DC power or normal data traffic. Together with a simple receiver structure implementing an adaptive threshold detector that decodes the telemetry data, any kind of information can be communicated between the IDU (12) and ODU (14) over a single cable (16). Control of the ODU (14) by the IDU (12) via a bi-directional half-duplex or full-duplex telemetry interface allows the IDU (12) to control the ODU settings.
Abstract:
An approach is provided for decoding a low density parity check (LDPC) coded signal. Edge values associated with a structured parity check matrix used to generate the LDPC coded signal are retrieved from memory (1501, 1503). The edge values specify the relationship of bit nodes and check nodes, and are stored within memory according to a predetermined scheme that permits concurrent retrieval of a set of the edge values. A decoded signal corresponding to the LDPC coded signal is output based on the retrieved edge values.
Abstract:
It is now becoming increasingly desirable for set top boxes to be fitted with two or more tuners, each having an associated receiver/decoder. This is to allow, for example, a user to watch a satellite television program whilst recording, on a video recorder, a different satellite television channel. However, since a single LNB can only supply signals from either a vertically or horizontally polarised signal, it is not possible to use a single LNB to provide all the desired portions of the incoming satellite signal. In order to overcome this problem the received satellite signal is separated into portions of interest which portions are combined onto a single output signal. Each portion of interest may be, for example a desired individual frequency having a specific polarization, or may be a frequency band containing a desired individual frequency having a specific polarization.
Abstract:
A home media server (110) is disclosed comprising: means for receiving broadcast multimedia content (130); means for receiving packet-switched multimedia content (120); means for converting the broadcasting multimedia content and said packet switched multimedia content into a standard multimedia content format; and means for distributing the multimedia content in the standard format to a plurality of multimedia nodes (164, 165, 166, 151, 160, 161, 162, 163, 150).