Upstream bandwidth conditioning device
First Claim
1. A device for conditioning an upstream bandwidth on a return path, the device comprising:
- a supplier side connector;
a user side connector, the return path extending at least a portion of a distance between the supplier side connector and the user side connector;
a coupler connected within the return path, the coupler connecting to a secondary path;
a detection circuit electrically connected to the coupler;
a level detector electrically connected to the detection circuit;
a microprocessor electrically connected to the level detector, the microprocessor comprising a first buffer and a second buffer, wherein the first buffer is a series peak buffer comprising values relative to a voltage output of the level detector, and the second buffer is an average buffer comprising at least one average of the values placed in the series peak buffer;
a variable signal level adjustment device connected within the return path, the variable signal level adjustment device being controlled by the microprocessor.
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Accused Products
Abstract
A device may be used for conditioning an upstream bandwidth. The device includes a return path extending at least a portion of a distance between a supplier side connector and a user side connector, and a coupler connected within the return path, the coupler providing a secondary path. A detection circuit is connected electrically downstream the coupler, and a level detector is connected electrically downstream the detection circuit. A microprocessor is connected electrically downstream the level detector. The microprocessor includes a first buffer and a second buffer. A variable signal level adjustment device is connected within the return path electrically upstream from the coupler. The variable signal level adjustment device is controlled by the microprocessor.
117 Citations
16 Claims
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1. A device for conditioning an upstream bandwidth on a return path, the device comprising:
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a supplier side connector; a user side connector, the return path extending at least a portion of a distance between the supplier side connector and the user side connector; a coupler connected within the return path, the coupler connecting to a secondary path; a detection circuit electrically connected to the coupler; a level detector electrically connected to the detection circuit; a microprocessor electrically connected to the level detector, the microprocessor comprising a first buffer and a second buffer, wherein the first buffer is a series peak buffer comprising values relative to a voltage output of the level detector, and the second buffer is an average buffer comprising at least one average of the values placed in the series peak buffer; a variable signal level adjustment device connected within the return path, the variable signal level adjustment device being controlled by the microprocessor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of conditioning an upstream bandwidth, the method comprising:
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receiving, through a supplier side connector, a frequency domain voltage stream; converting the frequency domain voltage stream into a time domain voltage stream, the time domain voltage stream including periods of increased voltage; amplifying and maintaining the periods of increased voltages using a low pass amplifier and a peak detector; recording a peak value from a plurality of voltage series from within an output voltage stream retrieved from the low pass amplifier, each series beginning with a measured voltage level exceeding a high voltage threshold and ending with a measured voltage level passing below a low voltage threshold; placing the peak values in a first buffer; periodically calculating a first buffer average; placing the each of the first buffer averages into a second buffer; determining whether the first buffer average is one of above and below a value range, the value range being one of the first buffer averages placed in the second buffer plus (+) an upper variance amount and minus (−
) a lower variance;adding an increment of attenuation to the upstream bandwidth when the first buffer is greater than the value range; reducing an increment of attenuation to the upstream bandwidth when the first buffer is less than the value range. - View Dependent Claims (13, 14, 15, 16)
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Specification