A transmission device, method, and program for signal transmission with reduced intersymbol interference are disclosed. In one example, a mapping unit maps binary data to symbols and a generating unit generates a signal from the mapped symbols. A transmission band-limiting filter performs band limitation of the signal at a corner frequency higher than half a frequency of a symbol rate. A frequency modulating unit performs frequency modulation on a carrier wave on the basis of the band limitation and the signal.

Disclosed is a method and apparatus for reducing outbound interference in a broadband powerline communication system. Data is modulated on first and second carrier frequencies and is transmitted via respective first and second lines of the powerline system. A characteristic of at least one of the carrier signals (e.g., phase or amplitude) is adjusted in order to improve the electrical balance of the lines of the transmission system. This improvement in electrical balance reduces the radiated interference of the powerline system. Also disclosed is the use of a line balancing element on or more lines of the powerline system for altering the characteristics of at least one of the power lines in order to compensate for a known imbalance of the transmission system.

Disclosed is a method and apparatus for reducing outbound interference in a broadband powerline communication system. Data is modulated on first and second carrier frequencies and is transmitted via respective first and second lines of the powerline system. A characteristic of at least one of the carrier signals (e.g., phase or amplitude) is adjusted in order to improve the electrical balance of the lines of the transmission system. This improvement in electrical balance reduces the radiated interference of the powerline system. Also disclosed is the use of a line balancing element on or more lines of the powerline system for altering the characteristics of at least one of the power lines in order to compensate for a known imbalance of the transmission system.

A cable assembly includes a cable having a cable core including a first signal conductor and a first insulator around the first signal conductor. The first signal conductor includes an exposed segment at an end of the cable extending forward of the first insulators. The cable includes a cable shield surrounding the cable core providing electrical shielding along a length of the cable and having an exposed segment proximate to the end of the cable. A conductive film is wrapped around the exposed segment of the cable shield being electrically connected to the cable shield. A cable ferrule is coupled to the end of the cable being wrapped around the conductive film and being electrically connected to the conductive film. The cable ferrule is electrically connected to the cable shield through the conductive film.

A cable assembly includes a cable having a cable core including a first signal conductor and a first insulator around the first signal conductor. The first signal conductor includes an exposed segment at an end of the cable extending forward of the first insulators. The cable includes a cable shield surrounding the cable core providing electrical shielding along a length of the cable and having an exposed segment proximate to the end of the cable. A conductive film is wrapped around the exposed segment of the cable shield being electrically connected to the cable shield. A cable ferrule is coupled to the end of the cable being wrapped around the conductive film and being electrically connected to the conductive film. The cable ferrule is electrically connected to the cable shield through the conductive film.

A method of estimating a noise present on a 2-wire line connected to a modem using a plurality of frequency bands is implemented by a noise estimation device connected to the 2-wire line. The method comprises obtaining a first voltage value of a differential mode voltage at the two wires of the secondary side of the differential mode circuit, the first voltage value measured on the plurality of frequency bands and a second voltage value of a common mode image voltage corresponding to a voltage at the two wires of the secondary side of the common mode circuit, resulting from said differential mode voltage, the second voltage value being measured on the plurality of frequency bands and transmitting the first voltage value and the second voltage value to a calculating module configured to provide a noise estimate based on the first and second voltage values.

A method of estimating a noise present on a 2-wire line connected to a modem using a plurality of frequency bands is implemented by a noise estimation device connected to the 2-wire line. The method comprises obtaining a first voltage value of a differential mode voltage at the two wires of the secondary side of the differential mode circuit, the first voltage value measured on the plurality of frequency bands and a second voltage value of a common mode image voltage corresponding to a voltage at the two wires of the secondary side of the common mode circuit, resulting from said differential mode voltage, the second voltage value being measured on the plurality of frequency bands and transmitting the first voltage value and the second voltage value to a calculating module configured to provide a noise estimate based on the first and second voltage values.

Quantization noise in an oversampled eddy current digital drive circuit is reduced using a noise shaping filter.

Quantization noise in an oversampled eddy current digital drive circuit is reduced using a noise shaping filter.

The present invention relates to electrical signal transmission cable systems and methods of using the same. The systems and methods use an electrical signal transmission cable system, wherein the electrical signal transmission cable system includes a parallel set of electrical signal transmission cables in electrical communication between an electrical signal transmitting device and an electrical signal receiving device.