A tap has an input, an output, and first and second tap outputs. A first transmission line extends between the input and the output and includes a low-pass filter. A second transmission line extends between the input and a switch, and includes a directional coupler and a first high-pass filter. An AC/DC converter is coupled to the first transmission line to operate the switch between open and closed conditions, in response to existence and absence of power in the first transmission line, respectively. In the open condition of the switch, the second transmission line is coupled to a resistor and a ground. In the closed condition of the switch, the second transmission line is coupled to a second high-pass filter and the output. A splitter is coupled between the directional coupler and the first and second tap outputs.

Increasing an analog to digital converter (ADC) dynamic range for a communications device. In the communications device, a reference threshold is established for a peak to average power ratio (PAPR) improvement factor for RF signals received by the communications device. A digital to analog converter (DAC) adjustment factor is established for a DAC to account for inaccuracies of a pre-cancellation DAC and fine tuning of an analog gain of received RF signals. A peak amplitude separation element, disposed within the communications device, evaluates an absolute value of a portion of a particular RF signal against the reference threshold. Upon the peak amplitude separation element determining that the portion is smaller than the reference threshold, the element assigns a zero value to a DAC signal current sample; otherwise, the element assigns a quantized value of the sample to the DAC signal current sample, used in adjusting a post-cancellation signal sample.

Increasing an analog to digital converter (ADC) dynamic range for a communications device. In the communications device, a reference threshold is established for a peak to average power ratio (PAPR) improvement factor for RF signals received by the communications device. A digital to analog converter (DAC) adjustment factor is established for a DAC to account for inaccuracies of a pre-cancellation DAC and fine tuning of an analog gain of received RF signals. A peak amplitude separation element, disposed within the communications device, evaluates an absolute value of a portion of a particular RF signal against the reference threshold. Upon the peak amplitude separation element determining that the portion is smaller than the reference threshold, the element assigns a zero value to a DAC signal current sample; otherwise, the element assigns a quantized value of the sample to the DAC signal current sample, used in adjusting a post-cancellation signal sample.

A network interface device includes a passive path between an entry port and a first port. The network interface device also includes an active path between the entry port and a second port. The network interface device also includes a buffer in the active path configured to absorb, attenuate, terminate, or isolate radio-frequency (RF) signals. The network interface device also includes a switching element in the active path configured to cause the RF signals to bypass the buffer when the network interface is in a first state that exists during powered operation of the network interface device, and direct the RF signals to the buffer when the network interface device is in a second state that exists during non-powered operation or faulted operation of the network interface device.

Systems and methods using inertial devices for generating reports associated with tests detecting leakage from cable network systems at subscribers' premises are disclosed.

Systems and methods using inertial devices for generating reports associated with tests detecting leakage from cable network systems at subscribers' premises are disclosed.

A network element of a cable television (CATV) network, comprising a first input for downstream signal transmission; a plurality of components arranged to form a downstream signal path, wherein at least one of said components is a downstream amplifier (330); a second input for upstream signal transmission; a plurality of components arranged to form an upstream signal path, wherein at least one of said components is an upstream amplifier (340); means (360) for inputting a control signal for adjusting one or more amplification parameters of the downstream amplifier; and means (350) for adjusting one or more amplification parameters of the upstream amplifier, wherein said one or more amplification parameters of the upstream amplifier are automatically calculated on the basis of the one or more amplification parameters of the downstream amplifier.

Systems and methods using inertial devices for generating reports associated with tests detecting leakage from cable network systems at subscribers' premises are disclosed.

Systems and methods using inertial devices for generating reports associated with tests detecting leakage from cable network systems at subscribers' premises are disclosed.

The invention relates to a system and a method for continuing the transmission from radio transmitters to cable networks with the simultaneous increase of internet data transmission in the VHF range. According to the invention, the radio signals, destined for radio receivers connected to the cable network, and having an original frequency in the VHF range between 30 MHz and 280 MHz, in particular in the range of VHF-band II between 65.9 MHZ and 108 MHz or VHF-band III between 174 MHz and 230/240 MHz, are to be transferred into another free frequency range of the cable network by means of a frequency band transfer device (100), are to be transmitted to the cable network in this frequency range, and directly before the radio receiver, are to be transferred back into the original frequency or into another frequency that can be received by the radio device in the VHF range by means of a frequency band back-transfer device (200).