# US 2013/0159752 A1 · Low power paging of consumer electronics > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0159752 A1 - Document ID: US20130159752A1 - Status: Published application - Kind: A1 - Application number: 13/763,027 - Filed: 2013-02-08 - Published: 2013-06-20 - Earliest claimed: 2010-04-16 - Assignees: Comcast Cable Communications, LLC - Inventors: Mark Francisco - Web page: https://patentgrep.com/patent/US20130159752A1 ## CPC - G06F 1/32: Means for saving power - G06F 1/3209: Monitoring remote activity, e.g. over telephone lines or network connections - G06F 1/3234: Power saving characterised by the action undertaken - G06F 1/325: {Power saving in peripheral device} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract Systems, apparatuses, and methods are configured to monitor signals received via a transmission medium by a paging monitor to detect an activity trigger. Systems, apparatuses, and methods are further configured to, in response to detecting the activity trigger, cause, by the paging monitor, a main receiver to transition from an energy conservation mode to an active mode to monitor the transmission medium for data traffic. ## Claims ### Claim 1 One or more non-transitory computer-readable media, storing computer-executable instructions that, when executed by a computing device, cause the following to occur: switch a computing device from an active mode of data reception operation to an energy conservation mode of data reception operation; while the computing device is in the energy conservation mode, monitor an incoming signal for a wakeup signal that contains an address identifying the computing device, and which is sent using a modulation that is orthogonal to a data modulation used on data processed by the computing device during the active mode of data reception operation; and in response to receiving the wakeup signal, switching the computing device from the energy conservation mode of data reception operation to the active mode of data reception operation. ### Claim 2 (depends on 1) The one or more non-transitory computer-readable media of claim 1, further storing computer-executable instructions that, when executed by the computing device, cause the following to occur: storing paging period information identifying a time range during which the wakeup signal is expected to be received; and using the stored paging period information to determine when to activate a wakeup signal paging monitor. ### Claim 3 (depends on 2) The one or more non-transitory computer-readable media of claim 2, further storing computer-executable instructions that, when executed by the computing device, cause the following to occur: varying the paging period information to change the time range during which the wakeup signal is expected to be received. ### Claim 4 (depends on 1) The one or more non-transitory computer-readable media of claim 1, further storing computer-executable instructions that, when executed by the computing device, cause the following to occur: after receiving the wakeup signal, checking the wakeup signal contents to determine which components of the computing device are needed to be woken up; and in response to the wakeup signal, partially waking up the computing device, wherein a first component of the computing device is switched to the active mode, while a second component of the computing device is maintained in the energy conservation mode. ### Claim 5 (depends on 1) The one or more non-transitory computer-readable media of claim 1, wherein monitoring the incoming signal for a wakeup signal further comprises monitoring a predetermined frequency to determine whether an incoming signal at the predetermined frequency has a voltage level exceeding a predetermined voltage level; and in response to determining that the incoming signal at the predetermined frequency has a voltage level exceeding the predetermined voltage level, determining that the incoming signal is a wakeup signal. ### Claim 6 (depends on 1) The one or more non-transitory computer-readable media of claim 1, further storing computer-executable instructions that, when executed by the computing device, cause the following to occur: examining the wakeup signal for a record instruction identifying a time period and service for a future scheduled recording. ### Claim 7 (depends on 1) The one or more non-transitory computer-readable media of claim 1, further storing computer-executable instructions that, when executed by the computing device, cause the following to occur: process a first wakeup signal as a wakeup signal applicable to a plurality of sleeping devices including the computing device; and process a second wakeup signal as a wakeup signal applicable to just the computing device. ### Claim 8 (depends on 1) The one or more non-transitory computer-readable media of claim 1, wherein the wakeup signal is modulated at a different frequency from the data modulation used on data processed by the computing device during the active mode of data reception operation. ### Claim 9 A method, comprising: switching, by a computing device, a data reception operation from an active mode to an energy conservation mode; receiving, by the computing device while in the energy conservation mode, an incoming wakeup signal containing an address identifying the computing device, and which uses a modulation that is orthogonal to a data modulation used on data processed by the computing device during the active mode of data reception operation; and switching the computing device from the energy conservation mode of data reception operation to the active mode of data reception operation in response to receiving the wakeup signal. ### Claim 10 (depends on 9) The method of claim 9, further comprising: storing paging period information identifying a time range during which the wakeup signal is expected to be received; and using the stored paging period information to determine when to activate a wakeup signal paging monitor. ### Claim 11 (depends on 10) The method of claim 10, further comprising varying the paging period information to change the time range during which the wakeup signal is expected to be received. ### Claim 12 (depends on 9) The method of claim 9, further comprising: after receiving the wakeup signal, checking the wakeup signal contents to determine which components of the computing device are needed to be woken up; and in response to the wakeup signal, partially waking up the computing device, wherein a first component of the computing device is switched to the active mode, while a second component of the computing device is maintained in the energy conservation mode. ### Claim 13 (depends on 9) The method of claim 9, wherein the receiving further comprises monitoring a predetermined frequency to determine whether an incoming signal at the predetermined frequency has a voltage level exceeding a predetermined voltage level; and in response to determining that the incoming signal at the predetermined frequency has a voltage level exceeding the predetermined voltage level, determining that the incoming signal is a wakeup signal. ### Claim 14 (depends on 9) The method of claim 9, further comprising: examining the wakeup signal for a record instruction identifying a time period and service for a future scheduled recording. ### Claim 15 (depends on 9) The method of claim 9, further comprising: processing a first wakeup signal as a wakeup signal applicable to a plurality of sleeping devices including the computing device; and processing a second wakeup signal as a wakeup signal applicable to just the computing device. ### Claim 16 (depends on 9) The method of claim 9, wherein the wakeup signal is modulated at a different frequency from the data modulation used on data processed by the computing device during the active mode of data reception operation. ### Claim 17 A method, comprising: determining that a computing device is to be switched from an energy conservation mode to an active mode; transmitting a wakeup signal containing an address identifying the computing device; and modulating the wakeup signal using a modulation that is orthogonal to a data modulation used to transmit data to the computing device when the computing device is in the active mode. ### Claim 18 (depends on 17) The method of claim 17, further comprising transmitting, to the computing device, paging period information identifying a time range during which the wakeup signal is expected to be transmitted. ### Claim 19 (depends on 17) The method of claim 17, wherein the wakeup signal comprises information identifying a time period and a service for a future scheduled recording, and wherein the computing device is a digital video recorder. ### Claim 20 (depends on 17) The method of claim 17, wherein the modulating the wakeup signal comprises modulating the wakeup signal at a different frequency from a frequency used to transmit data to the computing device when the computing device is in the active mode.