Abstract: A device and a method are provided. The device may include: a first encoder arranged to apply a first type encoding process on an input frame element to provide a first type encoded frame element; the input frame elements belong to an input frame; a second encoder arranged to apply a second type encoding process on the input frame element to provide a second type encoded frame element; wherein the first type encoding process differs from the second type encoding process by a degree of expected loss of data; a control circuit arranged to select a selected frame element out of the first and second type encoded frame elements; a memory unit arranged to store information about the selected frame element; and an output interface arranged to output the selected frame element.

Abstract: A method and a system, the system includes: an analog base-band pre-distorter arranged to receive in-phase (I) baseband signals and Quadrature (Q) baseband signals, and to amplify the I baseband signals and the Q baseband signals by a gain function to provide amplified I baseband signals and amplified Q baseband signals; wherein the gain function is responsive to a sum of (a) a square of amplitudes of the I baseband signals and, (b) a square of amplitudes of the B baseband signals; a frequency converter arranged to convert the amplified I and Q baseband signals to radio frequency (RF) signals; an RF amplifier that is arranged to amplify the RF signals to provide amplified RF signals and to output differential RF signals that represent the amplified RF signals through first and second differential output ports of the RF amplifier; a balun comprising a first and second balanced input ports and a single unbalanced output port; and multiple wire-bonds coupled between the balun and the first and second differentia

Abstract: A transmitter may include an encoder configured to encode a data bit vector to provide an codeword that includes a first codeword portion and a second codeword portion; wherein the first codeword portion is decodable by a first parity check process to yield the data bit vector; wherein the codeword is decodable by a second parity check process to yield the data bit vector; and a communication module, for transmitting the codeword.

Abstract: The present invention provides multi-band ultra-wide band (UWB) communication methods and systems capable of adaptively and scalably supporting different applications with different requirements, as well as different desired or ideal properties relating to the communications. A method is provided for transmitting information using multi-band ultra-wide band transmission, including transmitting a signal over each of multiple frequency sub-bands, and allowing variation of at least one transmission parameter to facilitate trade-off between at least two of power consumption, energy collection, bit rate, performance, range, resistance to multiple access interference, and resistance to multipath interference and spectral flatness.

Abstract: The present invention provides ultra-wide band communication systems and methods, including multi-band ultra-wide band communication systems and methods. Methods and systems are provided in which frequency sub-bands of an ultra-wide band spectrum are allocated for signal transmission. An ultra-wide band transmission including the information is sent, including sending a signal over each of the plurality of sub-bands. Methods are further provided in which a first data signal containing information is converted into an encoded signal using an Inverse Fast Fourier Transform. The encoded signal is converted into an encoded ultra-wide band signal that can be pulsed or transmitted using burst symbol cycles. The encoded pulsed ultra-wide band signal is decoded using a Fast Fourier Transform to obtain the information.

Abstract: The present invention provides communication methods, systems, and apparatuses. Methods are provided in which a second signal for transmission is obtained by halving values of an initial portion and a tail portion of a first signal, and adding zeros following the tail portion. Upon or after reception, a third signal is obtained from the received second signal and used in obtaining information. Obtaining each of an initial portion and a tail portion of the third signal includes adding together at least a portion of each of the initial portion and the tail portion of the second signal.

Abstract: A satellite modem whose baseband modules can be implemented mostly in software running on a suitable processor such as a high speed digital signal processor (DSP). The modem includes a RF portion and a baseband portion. The digitized output of a matched filter is input to the baseband processing portion that consists of software executing on a DSP. The modem comprises an antenna coupled to an upconverter/downconverter. The upconverter/downconverter is coupled to a RF transceiver which functions to receive a transmit signal from a baseband transmitter module and generate a signal for input to the upconverter/downconverter. The RF transceiver also functions to receive a downconverted signal and output an IF signal for input to an IF module. The IF functions to generate I and Q outputs that are input to a digital baseband module. The baseband module can be implemented as software executing on a DSP. Also included in a technique of modulation wipe off wherein the effects of modulation are removed.

Abstract: The present invention provides communication methods, systems, and apparatuses. Methods are provided in which a second signal for transmission is obtained by halving values of an initial portion and a tail portion of a first signal, and adding zeros following the tail portion. Upon or after reception, a third signal is obtained from the received second signal and used in obtaining information. Obtaining each of an initial portion and a tail portion of the third signal includes adding together at least a portion of each of the initial portion and the tail portion of the second signal.

Abstract: The present invention provides multi-band ultra-wide band (UWB) communication methods and systems capable of adaptively and scalably supporting different applications with different requirements, as well as different desired or ideal properties relating to the communications. A method is provided for transmitting information using multi-band ultra-wide band transmission, including transmitting a signal over each of multiple frequency sub-bands, and allowing variation of at least one transmission parameter to facilitate trade-off between at least two of power consumption, energy collection, bit rate, performance, range, resistance to multiple access interference, and resistance to multipath interference and spectral flatness.

Abstract: The present invention provides ultra-wide band communication systems and methods, including multi-band ultra-wide band communication systems and methods. Methods and systems are provided in which frequency sub-bands of an ultra-wide band spectrum are allocated for signal transmission. An ultra-wide band transmission including the information is sent, including sending a signal over each of the plurality of sub-bands.

Abstract: The present invention is a return link for a satellite communication system. The return link described herein is suitable for use in any type of communications network such as networks used for Internet access purposes. The return link in combination with a forward link forms a complete two way communication system via satellite. The return link comprises two separate communication schemes used in combination to implement the return link of the satellite system. The first communication scheme uses a random access method based on a non synchronous frequency hopping code division multiple access technique (NS/FH/CDMA). The second communication scheme uses a channel assignment method based on a frequency division multiple access (FDMA) technique. Data generated by a user is transmitted utilizing one of the two communication schemes in accordance with the content and amount of data generated.