Methods and systems are provided for increasing bandwidth efficiency in satellite communications. In some embodiments, a satellite communications method is provided that comprises receiving, at a satellite and from a plurality of user ground terminals, a plurality of source signals, wherein each of the source signals are modulated according to at least one source modulation method, and further receiving, at a satellite and from a plurality of user ground terminals, a plurality of information signals corresponding to the plurality of source signals. The method further includes combining, at the satellite, the plurality of source signals into a combined source signal with an overlapping bandwidth, wherein each of the source signals are further modulated according to at least one predetermined modulation method before they are combined, and transmitting, by a downlink transmission from the satellite to a gateway ground station, the combined source signal.

Systems and processes for language processing with radio devices are provided. For example, radio broadcast information is received at a first electronic device, and a vocabulary is modified based on the received radio broadcast information. A speech input is received from a user of the first electronic device. A user intent of the speech input is obtained based on the modified vocabulary. A request is transmitted, based on the user intent, to a second electronic device.

Systems and processes for language processing with radio devices are provided. For example, radio broadcast information is received at a first electronic device, and a vocabulary is modified based on the received radio broadcast information. A speech input is received from a user of the first electronic device. A user intent of the speech input is obtained based on the modified vocabulary. A request is transmitted, based on the user intent, to a second electronic device.

Apparatus is for reception and transmission of data signals at one or more user locations. The data signals are received from and transmitted to remote locations typically via a satellite or cell phone transmission system. The operating condition of the apparatus at the user location is selectively adaptable such as to take into account the particular format in which the data signals are received or are to be transmitted to thereby allow the apparatus to be used in different locations and adapted for use at the time of installation or at a time after installation with no, or minimal, intervention or skilled technical personnel attendance being required at the user location to allow the operation of the apparatus to be adapted.

Apparatus is for reception and transmission of data signals at one or more user locations. The data signals are received from and transmitted to remote locations typically via a satellite or cell phone transmission system. The operating condition of the apparatus at the user location is selectively adaptable such as to take into account the particular format in which the data signals are received or are to be transmitted to thereby allow the apparatus to be used in different locations and adapted for use at the time of installation or at a time after installation with no, or minimal, intervention or skilled technical personnel attendance being required at the user location to allow the operation of the apparatus to be adapted.

Systems and methods for operating a multi-band satellite terminal are disclosed. One aspect disclosed features a method, comprising: controlling a multi-band satellite terminal capable of receiving signals on a plurality of frequency bands to receive a signal transmitted by a satellite on a first frequency band of the plurality of frequency bands; determining link conditions of the first frequency band based on the received signal; generating an estimate of link conditions of a second frequency band of the plurality of frequency bands, wherein the estimate is generated based on the link conditions of the first frequency band; selecting the second frequency band based on the estimate of the link conditions of the second frequency band; and controlling the multi-band satellite ground terminal to receive the signal transmitted by the satellite on the second frequency band.

Systems and methods for operating a multi-band satellite terminal are disclosed. One aspect disclosed features a method, comprising: controlling a multi-band satellite terminal capable of receiving signals on a plurality of frequency bands to receive a signal transmitted by a satellite on a first frequency band of the plurality of frequency bands; determining link conditions of the first frequency band based on the received signal; generating an estimate of link conditions of a second frequency band of the plurality of frequency bands, wherein the estimate is generated based on the link conditions of the first frequency band; selecting the second frequency band based on the estimate of the link conditions of the second frequency band; and controlling the multi-band satellite ground terminal to receive the signal transmitted by the satellite on the second frequency band.

Systems and processes are provided for a micro ATSC transmitter including a satellite signal decoder configured to decode a satellite broadcast signal to generate a received audio video program, a data decoder configured to decoding a data signal from an ATSC broadcaster, a video processor configured to generate an altered audio video program in response to the received audio video program and the data signal, an ATSC encoder configured to encode the altered audio video program to generate an ATSC broadcast signal, and an ATSC transmitter configured to transmit the ATSC broadcast signal.

An outdoor satellite receiving unit (ODU) receives several independent satellite signals, selects two signals with a switch matrix, downconverts the two signals to a bandstacked signal with a high and a low band signal, and outputs the bandstacked signal on the same cable to receiver units. Several satellite signals can be selected in groups of two or more and output to independent receiver units. Signal selecting is performed at the received radio frequency (RF) and bandstacking is performed with a single downconversion step to an intermediate frequency (IF). Channel stacking on the same cable of more than two channels from several satellites can be achieved by using frequency agile downconverters and bandpass filters prior to combining at the IF output. A slow transitioning switch minimizes signal disturbances when switching and maintains input impedance at a constant value.

An outdoor satellite receiving unit (ODU) receives several independent satellite signals, selects two signals with a switch matrix, downconverts the two signals to a bandstacked signal with a high and a low band signal, and outputs the bandstacked signal on the same cable to receiver units. Several satellite signals can be selected in groups of two or more and output to independent receiver units. Signal selecting is performed at the received radio frequency (RF) and bandstacking is performed with a single downconversion step to an intermediate frequency (IF). Channel stacking on the same cable of more than two channels from several satellites can be achieved by using frequency agile downconverters and bandpass filters prior to combining at the IF output. A slow transitioning switch minimizes signal disturbances when switching and maintains input impedance at a constant value.