# US 12,192,029 B2 · Methods and systems for power management in communication devices based on cable connectivity > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,192,029 B2 - Document ID: US12192029B2 - Status: Granted - Kind: B2 - Application number: 18/225,870 - Filed: 2023-07-25 - Published: 2024-01-04 - Granted: 2025-01-07 - Earliest claimed: 2013-11-20 - Assignees: Entropic Communications, Inc. - Applicants: Entropic Communications, LLC - Inventors: Branislav Petrovic - Web page: https://patentgrep.com/patent/US12192029B2 ## CPC - H04L 12/2861: {Point-to-multipoint connection from the data network to the subscribers} - G06F 1/266: {Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips} - G06F 1/3206: Monitoring of events, devices or parameters that trigger a change in power modality - G06F 1/3209: Monitoring remote activity, e.g. over telephone lines or network connections - G06F 1/3287: by switching off individual functional units in the computer system - G06F 1/3296: by lowering the supply or operating voltage - H04L 1/24: Testing correct operation - H04L 12/10: Current supply arrangements - H04L 12/12: Arrangements for remote connection or disconnection of substations or of equipment thereof - H04L 12/2801: {Broadband local area networks} - H04L 41/0833: for reduction of network energy consumption - H04L 43/0811: by checking connectivity - H04L 43/50: Testing arrangements - H04N 21/6118: {involving cable transmission, e.g. using a cable modem} - H04N 21/6168: {involving cable transmission, e.g. using a cable modem} - Y02D 10/00: Energy efficient computing, e.g. low power processors, power management or thermal management - Y02D 30/50: in wire-line communication networks, e.g. low power modes or reduced link rate - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract Methods and systems are provided for power management in communication devices, particularly based on cable connectivity. A power management component in a system may be configured to manage power use in the system based on measurements associated with a signal path used for communication by the system via a communication port, wherein the managing includes. Managing the power use may include determining, based on the measurements, connectivity related information associated with connectivity of the system via the communication port; applying, based on the connectivity related information, one or more power use reduction measures, wherein the one or more power use reduction measures include transitioning between different power related states; and monitoring one or more conditions to determine when to stop, undo, or reverse at least one of the one or more power use reduction measures. ## Claims ### Claim 1 A system comprising: a power management component configured to manage power use in the system based on measurements associated with a signal path used for communication by the system via a communication port, wherein the managing comprises: determining, based on the measurements, connectivity related information associated with connectivity of the system via the communication port; applying, based on the connectivity related information, one or more power use reduction measures, wherein the one or more power use reduction measures comprise transitioning between different power related states; and monitoring one or more conditions to determine when to stop, undo, or reverse at least one of the one or more power use reduction measures. ### Claim 2 (depends on 1) The system of claim 1, wherein the power management component comprises: a sensing component; and a power control component; wherein: the sensing component is configured to alert the power management component regarding at least one condition associated with connectivity of the system via the communication port; and the power control component is configured to apply based on the alert, at least one of the one or more power use reduction measures. ### Claim 3 (depends on 1) The system of claim 1, wherein the power management component is configured to, upon application of at least one of the one or more power use reduction measures, turn off one or more electronic components of the system. ### Claim 4 (depends on 3) The system of claim 3, wherein at least part of the power management component is configured to remain active and to continue to monitor at least one condition from the one or more conditions. ### Claim 5 (depends on 3) The system of claim 3, wherein the power management component is configured to, when stopping, undoing, or reversing at least one of the one or more power use reduction measures, turn on and/or re-activate at least one of the one or more electronic components of the system. ### Claim 6 (depends on 1) The system of claim 1, wherein the measurements comprise measured results at various frequencies, and wherein the power management component is configured to compare the measured results to corresponding references at least at one or more frequencies. ### Claim 7 (depends on 1) The system of claim 1, wherein the power management component is configured to: compare energy at one or more frequencies with reference energy values corresponding to the one or more frequencies; and determine whether a signal is present at the one or more frequencies or within a corresponding one or more frequency bands. ### Claim 8 (depends on 1) The system of claim 1, wherein the power management component is configured to, when monitoring the one or more conditions, determine at least one condition associated with connectivity of the system via the communication port based on measuring of voltage or current at the communication port. ### Claim 9 (depends on 1) The system of claim 1, wherein the power management component is configured to, when monitoring the one or more conditions, determine at least one condition associated with connectivity of the system via the communication port based on detecting presence or absence of a signal on the signal path. ### Claim 10 (depends on 1) The system of claim 1, wherein the power management component is configured to, when monitoring the one or more conditions, determine at least one condition associated with connectivity of the system via the communication port, based on evaluating signal characteristics of a signal present on the signal path. ### Claim 11 (depends on 1) The system of claim 1, wherein the power management component is configured to, when monitoring the one or more conditions, periodically re-determine at least one condition of the one or more conditions upon the initiation of the at least one of the one or more power use reduction measures. ### Claim 12 A method comprising: managing power use in a communication device based on measurements associated with a signal path used for communication by the communication device via a communication port, wherein the managing comprises: determining, based on the measurements, connectivity related information associated with connectivity of the communication device via the communication port; applying, based on the connectivity related information, one or more power use reduction measures, wherein the one or more power use reduction measures comprise transitioning between different power related states; and monitoring one or more conditions to determine when to stop, undo, or reverse at least one of the one or more power use reduction measures. ### Claim 13 (depends on 12) The method of claim 12, further comprising: generating an alert regarding at least one condition associated with connectivity of the communication device via the communication port; and applying based on the alert at least one of the one or more power use reduction measures. ### Claim 14 (depends on 12) The method of claim 12, further comprising, upon application of at least one of the one or more power use reduction measures, turning off or deactivating one or more components of the communication device. ### Claim 15 (depends on 12) The method of claim 12, further comprising configuring at least one component of the communication device to remain active and to continue to monitor at least one condition from the one or more conditions. ### Claim 16 (depends on 12) The method of claim 12, further comprising, when stopping, undoing, or reversing at least one of the one or more power use reduction measures, turning on and/or re-activating at least one component of the communication device. ### Claim 17 (depends on 12) The method of claim 12, wherein the measurements comprise measured results at various frequencies, and further comprising comparing the measured results to corresponding references at least at one or more frequencies. ### Claim 18 (depends on 12) The method of claim 12, further comprising: comparing energy at one or more frequencies with reference energy values corresponding to the one or more frequencies; and determining whether a signal is present at the one or more frequencies or within a corresponding one or more frequency bands. ### Claim 19 (depends on 12) The method of claim 12, further comprising, when monitoring the one or more conditions, determining at least one condition associated with connectivity of the communication device via the communication port based on measuring of voltage or current at the communication port. ### Claim 20 (depends on 12) The method of claim 12, further comprising, when monitoring the one or more conditions, determining at least one condition associated with connectivity of the communication device via the communication port based on detecting presence or absence of a signal on the signal path. ### Claim 21 (depends on 12) The method of claim 12, further comprising, when monitoring the one or more conditions, determining at least one condition associated with connectivity of the communication device via the communication port, based on evaluating signal characteristics of a signal present on the signal path. ### Claim 22 (depends on 12) The method of claim 12, further comprising, when monitoring the one or more conditions, periodically re-determining at least one condition of the one or more conditions upon the initiation of the at least one of the one or more power use reduction measures.