Full-Duplex Cable Modem Calibration
AssigneeMaxLinear, Inc.
InventorSridhar Ramesh
Life of this patent
Estimating the term…
Abstract
A cable modem comprises transmitter circuitry, receiver circuitry, and memory. Upon power up of the cable modem in the field, the transmitter circuitry transmits one or more first signals into a network. The receiver circuitry measure echoes of the transmitted one or more first signals. The receiver circuitry generates an installation figure of merit based on the measured echoes and factory-calibration echo measurements stored in the memory. The communication device begins DOCSIS® network registration if the installation quality measurement meets a determined requirement and generates a notification to troubleshoot the installation of the communication device if the installation quality measurement does not meet a determined requirement.
Claims1
A system comprising:
- a communication device operable to communicate in accordance with a Data Over Cable System Interface Specification (DOCSIS®) standard, the communication device comprising transmitter circuitry, receiver circuitry, and memory, wherein:
- the transmitter circuitry is operable to transmit one or more first signals into a network to which the communication device is coupled;
- the receiver circuitry is operable to measure echoes of the transmitted one or more first signals;
- the receiver circuitry is operable to generate an installation figure of merit based on the measured echoes and factory-calibration echo measurements stored in the memory;
- and
- the communication device is operable to:
- begin DOCSIS® network registration if the installation quality measurement meets a determined requirement;
- and
- generate a notification to troubleshoot the installation of the communication device if the installation quality measurement does not meet a determined requirement.
Dependencies are inferred from the claim text.