Back to results
US 12,707,021 B2Granted
Electronic tunable cable simulator
AssigneeARRIS Enterprises LLC
InventorsZhijian Sun, Brent D. Arnold, Eric J. Cormier, Marcel F.C. Schemmann
Life of this patent
Estimating the term…
Abstract
A design for a Tunable Cable Simulator with a minimum number of components and low insertion loss.
Claims18
A programmable cable simulator for a cable network comprising:
- a circuit receiving an input signal from an input coaxial cable, the input signal having a first signal frequency;
- the cable simulator receiving a cable loss value representative of a loss of signal over a portion of said cable network;
- the cable simulator retrieving one or more stored values from a stored table, in response to the cable loss value;
- the cable simulator programming one or more variable and programmable components in the circuit, including at least one variable resistor and at least one variable capacitor based on said one or more stored values;
- the circuit modifying the first signal frequency of the input signal according to the retrieved one or more stored values programmed to the one or more variable components;
- and
- the circuit providing an output signal to an output coaxial cable for an end user.
4 more elements
An apparatus for modifying a coaxial cable signal in a cable network, comprising:
- a circuit installed between two coaxial cables, the circuit further comprising:
- an input;
- an output;
- an upper portion comprising an inductor, a capacitor, and a first variable resistor;
- a lower portion comprising a second variable resistor, a third variable resistor, and one variable capacitor;
- a microprocessor;
- and
- a table comprising one or more stored values configured for programming the first, second, and third variable resistors and the variable capacitor, wherein the table is stored in the microprocessor;
- wherein the first, second, and third variable resistors and the one variable capacitor can be programmed to the values stored in the table on the microprocessor to effect tuning of the cable signal to simulate cable loss of an amount variably selected over a range of values between 0 and 18 dB
- wherein said microprocessor is configured to receive a cable loss value representative of a loss of signal over a portion of said cable network, and in response to receiving said cable loss value, retrieves from said table one or more of said stored values and programs the first, second, and third variable resistors and the variable capacitor to tune the cable signal.
7 more elements
Dependencies are inferred from the claim text.