Radio wakeup for radio control of electronic device

Abstract

Methods, devices and systems are disclosed that pair a first device such that a radio control circuit of a second device may store first device identification information, operate a host circuit of a second electronic device in a sleep mode, detect a radio advertisement signal from the first device by the radio control circuit of the second device, and transmit the radio advertisement signal to the first device. And awakening the host circuit of the second device from a sleep mode and establishing a control link between the host circuits of the first device and the second device.

Description

[0001] Priority

[0002] This application claims priority to U.S. Provisional Patent Application No. 63 / 435,888, filed on December 29, 2022, the contents of which are hereby incorporated in their entirety. Technical Field

[0003] The present disclosure relates to remote control of electronic devices, and more particularly to waking up the electronic devices in response to radio advertising signals and controlling the electronic devices with radio control signals. Background Art

[0004] In system-on-chip (SOC) electronic devices, such as The radio module of a Bluetooth Low Energy (BLE) module may include a radio controller such as a BLE controller, a host, and an application. In such an electronic device, the radio controller (e.g., a BLE controller) may listen for radio advertisements from a remote controller (such as, but not limited to, a smartphone) to wake up the electronic device from a low-power mode to a high-power mode.

[0005] In other electronic devices, a microprocessor unit (MPU) separate from the radio controller (e.g., separate from the BLE controller) can control low-power operating modes, including wakeup via a physical power switch or a separate infrared (IR) remote control. The MPU may include an operating system such as Linux, a Low Energy (BLE) or Exemplary electronic devices include music servers, appliances, audio equipment, video equipment (televisions), and line-powered electronic devices.

[0006] A typical electronic system has an electronic device (having a microprocessor unit with a Linux operating system) that responds to commands from a remote controller (such as, but not limited to, a smartphone) via a BLE stack. The electronic device is awakened from low-power standby mode by any of the following actions: (1) pressing a physical power button on the electronic device itself; or (2) sending an infrared signal via an infrared remote controller. The electronic device must wake up to listen for BLE commands from the smartphone because, in low-power or standby mode, the radio host stack is powered off in order to achieve a standby power of less than 0.5W (UL). After the electronic device wakes up and operates in high-power mode (including powering up the host radio stack), the smartphone can communicate with the electronic device via radio signals to control the electronic device.

[0007] Alternatively, the electronic device can be controlled by the MPU to operate continuously in high power mode, i.e., it always remains fully powered to allow the smartphone to control the link to connect on demand. However, operating continuously in high power mode does not provide any power savings for the electronic device.

[0008] It is desirable for an electronic device to be woken up, turned on, or fully powered up by a remote controller (such as, but not limited to, a smart phone) rather than a user pressing a physical power switch on the electronic device or using a separate infrared remote control to wake the electronic device from a low-power standby mode. Summary of the Invention

[0009] Aspects provide systems, devices, and methods that wake up an electronic device via a remote controller advertising signal so that a remote controller (such as, but not limited to, a smartphone) can then establish a control link with the electronic device.

[0010] According to one aspect, a method is provided, the method comprising: establishing communication between a first device having first device identification information and a second device having a radio control circuit and a host circuit, wherein the first device identification information is transmitted to and stored by the radio control circuit of the second device; operating the second electronic device in a sleep mode that maintains operating power to the radio control circuit without maintaining operating power to the host circuit; detecting, by the radio control circuit of the second device, an advertising signal including the first device identification information from the first device; and waking up the second device from the sleep mode in response to detecting the advertising signal to operate in a wake-up mode that maintains operating power to both the radio control circuit and the host circuit, wherein in the wake-up mode, the first device is able to establish a control link with the host circuit of the second device.

[0011] One aspect provides a device comprising: a radio antenna; a microprocessor that communicates with the radio antenna signals and includes: a radio control circuit that communicates with the radio antenna to store identification information of a remote controller and detects an advertising signal from the remote controller that includes the identification information of the remote controller; and a host circuit that communicates with the radio antenna to establish a control link with the remote controller; wherein the device is capable of operating in a low power mode in which operating power is maintained for the radio control circuit but not for the host circuit, wherein the device is capable of operating in a high power mode in which operating power is maintained for both the radio control circuit and the host circuit, and wherein the device switches from the low power mode to the high power mode in response to detection by the radio control circuit of an advertising signal that includes the identification information of the remote controller.

[0012] According to one aspect, a system is provided, comprising: a remote controller having remote controller identification information; and a line-powered electronic device comprising: a radio antenna; a radio control circuit communicating with the radio antenna, the radio control circuit being used to store the identification information of the remote controller and detect an advertising signal including the identification information from the remote controller; a host circuit communicating with the radio antenna, the host circuit being used to establish a control link with the remote controller; wherein the radio control circuit is used to wake up the host circuit in response to detection by the radio control circuit of an advertising signal including the remote controller identification information. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings illustrate examples of systems, devices, and methods for waking an electronic device via a smartphone advertising signal so that the smartphone can then establish a control link with the electronic device without requiring the user to press a physical power switch on the electronic device or use a separate IR remote control to wake the electronic device from a low-power standby mode.

[0014] Figure 1 A block diagram of an electronic device and a remote controller is shown, where the electronic device has radio control circuitry and host circuitry.

[0015] Figure 2 A block diagram of an electronic device and a remote controller is shown, where the electronic device has a radio control circuit with a BLE controller and a microprocessor with a host circuit.

[0016] Figure 3 A block diagram of an electronic device and a remote controller is shown, wherein the electronic device has a radio antenna and a microprocessor having radio control circuitry and host circuitry.

[0017] Figure 4 A block diagram of an electronic device and a remote controller is shown, where the electronic device has radio control circuitry and host circuitry.

[0018] Figure 5 A schematic diagram of an electronic device having a radio antenna, radio control circuitry, and a microprocessor with host circuitry is shown.

[0019] Figure 6 A schematic diagram of an electronic device having a radio antenna, a microprocessor with radio control circuitry and host circuitry is shown.

[0020] Figure 7 A flow chart illustrating a method for pairing devices, operating the devices in sleep mode, detecting an advertising signal, and waking the devices to establish a control link between the devices is shown.

[0021] Any reference numeral that appears in multiple different figures has the same meaning in the multiple figures, and references or discussions herein to any reference numeral in the context of any particular figure also apply to each other figure (if any) in which the same reference numeral is shown. DETAILED DESCRIPTION

[0022] Various aspects provide systems, devices, and methods for waking up an electronic device via a radio advertising signal from a remote controller (such as a smartphone) so that the smartphone can then establish a control link with the electronic device without requiring a user to press a physical power switch on the electronic device or use a separate infrared (IR) remote control to wake the electronic device from a low-power standby mode. Various aspects of the present disclosure provide a radio control circuit for an electronic device that listens for a radio advertising signal from a remote controller, compares identification information in the radio advertising signal with a list of stored identification information of the remote controller, and wakes up the electronic device so that the confirmed remote controller can establish a control link with the electronic device.

[0023] Various aspects provide an electronic device that wakes itself from sleep mode when it detects and recognizes a radio advertising signal from a previously paired smartphone. When the electronic device does not detect a previously paired smartphone, the electronic device may remain in sleep mode to conserve power. Detecting a previously paired smartphone may trigger the electronic device to wake up to a wake-up mode, in which the electronic device can be fully controlled by the smartphone. The smartphone can then act as a remote controller for the electronic device.

[0024] The signal from the remote control to the electronic device can be and In addition, the wireless signal can be selected from the group consisting of and The group comprises at least one communication standard selected to format the wireless signal. yes Registered trademark owned by SIG. is a registered trademark owned by the Wi-Fi Alliance. is a registered trademark owned by the ZigBee Alliance.

[0025] The remote controller can be any device capable of providing control commands, such as, but not limited to, a smartphone. In some aspects, the radio antenna of an electronic device can communicate with the remote controller. The radio antenna of an electronic device can be used to communicate with a user device (remote controller) capable of remotely controlling the electronic device. The user device can include a dedicated remote control, smartphone, tablet computer, laptop computer, or any other user device capable of interfacing with the radio antenna of the electronic device. These communications can be direct or through a local area network, such as a homeowner's network (e.g., via Wi-Fi), which can also include access to a central server (such as a cloud-based server). In other aspects, communication can be via a local communication hub or bridge. Communication can be performed directly with a central or cloud-based server (e.g., via a cellular connection). In other aspects, communication can be performed directly between the remote controller and the electronic device. The remote controller may include, but is not limited to, iPhone, iPad, Android, and Blackberry personal digital assistants. These devices can use mobile device platforms, including, but not limited to, Java, Java ME, iPhone, iOS, iPad, Android, Windows Mobile, Windows Phone, BlackberryOS, Symbian, BADA, etc. The remote controller may be capable of local wireless communications such as, but not limited to: Wi-Fi (e.g., 802.11x); Wi-Max; Cellular (e.g., 3G, 4G, LTE, CDMA, etc.); LoRa; Zigbee; Zigbee Pro; Bluetooth; Bluetooth Low Energy (BLE), including currently available 5+ and Bluetooth 4.0 protocol implemented on OS 4.3+ operating system; Near Field Communication (NFC); ​​Z-Wave; 6LoWPAN; Thread; RFID; and other applicable wireless protocols. In a specific example, the remote controller is an application running on a smartphone that communicates with the electronic device via BLE.

[0026] Upon detecting a radio advertising signal from a previously paired smartphone, the electronic device may switch from low power mode. When detecting a radio advertising signal from a previously paired smartphone, the electronic device may switch to high power mode, which may then allow connection of the smartphone's remote control capabilities.

[0027] The remote controller can establish communication via a radio advertising signal (such as but not limited to a BLE advertising signal). One aspect is to detect a BLE advertising signal from a previously paired smartphone and use that detection to trigger a wakeup of a microprocessor unit in the electronic device. One aspect can provide a very simple A Bluetooth Low Energy (BLE) function that listens for advertisements and, if it detects a BLE advertisement signal from a previously paired smartphone, creates a wake-up signal (pin toggle or UART message). Another aspect provides a sub-function in a BLE module of a microprocessor unit that powers down functions other than BLE advertisement listening. The function can then listen for BLE advertisement signals and, if a BLE advertisement signal from a previously paired smartphone is detected, wake up the rest of the microprocessor system. The listening and wake-up functions can be provided in the host controller interface (HCI) level of the radio control circuitry, which can then be used as part of the MPU Linux subsystem.

[0028] Figure 1 A block diagram of a system 100 is shown having an electronic device 110 and a remote controller 150. The electronic device 110 has a radio control circuit 114 and a host circuit 130. The remote controller 150 transmits a radio advertising signal 152 to the radio control circuit 114. The remote controller 150 may also establish a control link 154 with the host circuit 130 of the electronic device 110 via a radio signal. The electronic device 110 may be any electronic device, such as a music server, an appliance, an audio device, a video device (television), and a line-powered electronic device. The remote controller 150 may be a smartphone, such as an iPhone or Android-based device. In one aspect, The low energy stack can be divided into two different layers: the Bluetooth low energy controller and the Bluetooth low energy host. Figure 1 In the embodiment of the present invention, the radio control circuit 114 can be a Bluetooth low energy controller, and the host circuit 130 can be a Bluetooth low energy host. These software subsystems can run on the same IC, or on two separate ICs that can be connected through a physical serial interface and a standard host controller interface (HCI) protocol.

[0029] Figure 2 A block diagram of a system 200 having an electronic device 210 and a remote controller 250 is shown. The electronic device 210 has a microprocessor 260 and a radio control circuit 214, such as a BLE controller 262. The microprocessor 260 has an operating system 264, a host circuit 230 (e.g., a BLE stack 266), and an application 268 in a memory 261. The remote controller 250 transmits a radio advertising signal 252 to the BLE controller 262. The remote controller 250 can also establish a control link 254 with the BLE stack 266 of the electronic device 210 via a radio signal. Bluetooth has multiple protocol layers that form a Bluetooth protocol stack. The lower layers are located in the BLE controller 262, which includes a radio interface. The upper layers are located in the BLE stack 266, which handles high-level data. As shown in FIG. Figure 2As shown, the BLE controller 262 is external to the MPU 260. Alternatively, the BLE controller 262 may not be physically separate from the BLE stack 266. If physically separate, a host controller interface (HCI) may handle communication between the BLE controller 262 and the BLE stack 266 via HCI packets 226. The BLE controller 262 may provide the host controller interface (HCI) level of the radio. In particular, the BLE controller 262 may have an HCI driver 222, and the BLE stack 266 may have an HCI driver 234, which communicate via the HCI packets 226.

[0030] like Figure 2 As shown, the HCI driver 222 in the BLE controller 262 communicates with the HCI driver 234 in the BLE stack 226 of the microprocessor 260, and the BLE controller 262 can be designed to: listen to the radio advertising signal 252 from the smart phone, wherein the radio advertising signal 252 includes smart phone identification information, compare the detected identification information from the advertising signal with the stored identification information list of previously paired smart phones, and output a wake-up signal to the BLE stack 266 when the previously paired smart phone is identified.

[0031] In sleep mode, the MPU is powered off or asleep, or in a similar low-power mode. The BLE controller 262 is not part of the MPU and is powered to listen for BLE advertising signals from previously paired smartphones. The BLE controller 262 may listen continuously, or if the advertisement is every 250ms, the BLE controller 262 may sleep between these time intervals. For example, it may listen for 300ms and then sleep for 200ms or longer. The interface of the MPU 260 may operate according to a predefined standard known as the Host Controller Interface (HCI). Features may be added to the BLE controller 262 to detect the presence of a previously paired device and use this detection to wake up the MPU 260 from sleep or off mode or a similar low-power mode.

[0032] When the MPU 260 is powered off or in low-power sleep mode, the BLE controller 262 of the electronic device 210 may remain powered on. The smartphone 250 may generate a BLE advertising signal. The BLE controller 262 may listen for BLE advertising signals from the smartphone 250 while the MPU 260 remains in low-power sleep mode. The BLE controller 262 may compare identification information from the detected BLE advertising signal with identification information from a stored list of previously paired smartphones. If a match is identified, the BLE controller 262 may issue a wake-up signal to the MPU 260. The MPU 260 may then be powered on and may be used for a full BLE connection with the identified smartphone 250. At this point, the BLE controller 262 may perform typical BLE operations to control the electronic device via command instructions, which are transmitted via BLE signals transmitted by the identified remote controller.

[0033] As each smartphone is paired with the MPU 260, a list of identification information for previously paired smartphones can be populated so that the BLE advertising signals from these smartphones can be compared to the populated list. For example, electronic device 210, such as a stereo, radio, television, or other consumer electronic device, can be turned on via a physical power button on the electronic device or a push-button on an infrared remote control. The electronic device can then be paired with smartphone 250 via a radio signal. Once paired, identification information for smartphone 250, such as its MAC ID and other characteristics, can be stored in memory 228 within the BLE controller 262 to populate the list of identification information for previously paired smartphones. Thereafter, when the BLE controller 262 detects a BLE advertising signal from a previously paired smartphone 250, it can power on the MPU 260 even when the MPU 260 is in low-power standby mode. Once powered on, the BLE stack 266 can connect the electronic device 210 to the smartphone 250, allowing full control capabilities via the smartphone 250.

[0034] When smartphone 250 is first paired with electronic device 210, the pairing information may be saved by electronic device 210 in BLE controller 262 or in memory accessible by BLE controller 262. Detection of an advertising signal from a previously paired smartphone may allow smartphone 250 to control a fully powered electronic device 210. The user can then use a smartphone application to interface with electronic device 210. Later, when electronic device 210 is not in use and enters low-power standby mode, BLE controller 262 may remain active and listen for BLE advertising signals from smartphone 250. If a previously paired smartphone 250 is detected by electronic device 210, specifically by BLE controller 262, BLE controller 262 may trigger the electronic device to provide an internal signal from BLE controller 262 to wake up or power up the entire electronic device 210, such as waking up or powering up MPU 260. This allows electronic device 210 to remain in low-power mode according to standard standby protocols while enabling electronic device 210 to be powered up by the previously paired smartphone 250.

[0035] Figure 3 A block diagram of a system 300 is shown having an electronic device 310 and a remote controller 350. The remote controller 350 may be a smart phone that supports Bluetooth low energy. The electronic device 310 has a radio antenna 370 and a microprocessor 360. The microprocessor 360 has a radio control circuit 314, a host circuit 330, and an application 346. The radio control circuit 314 may include a protocol stack having layers identified as radio 316, link control 318, a link manager 320, a host control interface (HCI) driver 322, and a physical bus driver 324. The host circuit 330 may also include a protocol stack having layers identified as physical bus driver 332, HCI driver 334, audio 336, logical link control and adaptation protocol (L2CAP) 338, control 340, and higher layers 342. The protocol may be The remote controller 350 transmits a radio advertising signal 352 to the radio control circuit 314 . The remote controller 350 may also establish a control link 354 with the host circuit 330 via the radio antenna 370 and the radio control circuit 314 .

[0036] Figure 4A block diagram of a system 400 is shown, including an electronic device 410 and a remote controller 450. The remote controller 450 may be a smartphone supporting Bluetooth Low Energy. The electronic device 410 includes a radio control circuit 414 and a host circuit 430. The radio control circuit 414 includes a radio circuit 472, a storage circuit 474, and a comparator circuit 476. The radio circuit 472 may handle radio communications with the remote controller 450. The storage circuit 474 may store identification information of remote controllers 450 that have paired with the radio circuit 472. The comparator circuit 476 may compare the identification information of a remote controller 450 that transmits a radio advertising signal to the radio circuit 472 with the identification information of remote controllers stored in the storage circuit 474. The remote controller 450 transmits the radio advertising signal 452 to the radio control circuit 414. The remote controller 450 may also establish a control link 454 with the host circuit 430 of the electronic device 410 via radio signals.

[0037] Figure 5 A block diagram of an electronic device 510 is shown, including a radio antenna 570, a radio control circuit 514, and a microprocessor 560. The microprocessor 560 may include a host circuit 530. The microprocessor 560 and the radio control circuit 514 may receive signal information from the radio antenna 570. In sleep mode, the microprocessor 560 with the host circuit 530 is powered off or in sleep mode. While the microprocessor 560 with the host circuit 530 is powered off or in low-power sleep mode, the radio control circuit 514 may remain powered on. Even when the microprocessor 560 with the host circuit 530 is in sleep mode, the radio control circuit 514 may listen for BLE advertisement signals. The radio control circuit 514 may store identification information of previously paired remote controllers and use this stored identification information to detect whether the previously paired remote controller is transmitting a radio advertisement signal. Upon detecting a previously paired remote controller, the radio control circuit 514 may wake up the microcontroller 560 with the host circuit 530.

[0038] Figure 6A block diagram of an electronic device 610 is shown, including a radio antenna 670 and a microprocessor 660. The microprocessor 660 may include a radio control circuit 614 and a host circuit 630. The microprocessor 660 may receive signal information from the radio antenna 670. In sleep mode, the host circuit 630 is powered off or in sleep mode. When the host circuit 630 is powered off or in low-power sleep mode, the radio control circuit 614 may remain powered on. Even when the host circuit 630 is in sleep mode, the radio control circuit 614 may listen for BLE advertisement signals. The radio control circuit 614 may store identification information of previously paired remote controllers and use the stored identification information to detect whether the previously paired remote controller is transmitting a radio advertisement signal. Upon detecting a previously paired remote controller, the radio control circuit 614 may wake up the host circuit 630.

[0039] Aspects of the present disclosure may be used with any electronic device that can be placed in a low-power state and then awakened upon detecting a BLE advertisement from a previously paired remote controller.

[0040] One aspect provides a method for controlling an electronic device, such as a television, headphones, or other device. A first device (which may be a smartphone or other device) is paired with a second device (which may be a television, headphones, or other device). As part of the pairing process, an ID from the first device is transmitted to the second device and stored in the radio control circuit (BLE controller) of the second device. The first device may be moved away from the second device, isolated from it, or otherwise disconnected from it. After a period of no activity (from the first device, from other devices, or a combination thereof) at the second device, the second device may enter a low-power mode. The first device may again establish communication with the second device, wherein the first device broadcasts an advertising beacon at predetermined intervals, the advertising beacon including the ID of the first device. The second device has a radio control circuit that may include a scanner, which wakes up according to a schedule to detect the advertising beacon. However, the rest of the second device is in low-power mode (for example, the TV is in sleep mode). The radio control circuit of the second device receives data from the advertising beacon and compares the ID from the advertising beacon with the stored ID from the pairing process (there may be multiple devices stored from previous pairing processes). If there is a match, action is taken, in particular waking the rest of the second device from low power mode.

[0041] Figure 7A flow chart of a method is shown. A first device having first device identification information establishes communication 710 between a second device having a radio control circuit and a host circuit, wherein the first device identification information is transmitted to and stored by the radio control circuit of the second device. One way to establish communication is through pairing. The second electronic device is operated 720 in a sleep mode that maintains operating power to the radio control circuit without maintaining operating power to the host circuit. The radio control circuit of the second device detects 730 a radio advertising signal from the first device that includes the first device identification information. In response to detecting the radio advertising signal from the first device that includes the first device identification information, the radio control circuit of the second device detects 730, wakes up 740 at least a portion of the remainder of the second device from the sleep mode to operate in a wake-up mode that maintains operating power to both the radio control circuit and the host circuit, wherein in the wake-up mode, the first device is able to establish a control link with the host circuit of the second device.

[0042] The radio control circuitry, radio circuitry, host circuitry, storage circuitry, and comparator circuitry may each be implemented in a single device or distributed across multiple devices by instructions in a medium for execution by a processor, functions, library calls, subroutines, shared libraries, software as a service, analog circuitry, digital circuitry, control logic, digital logic circuitry programmed by a hardware description language, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), a programmable logic device (PLD), or any suitable combination thereof, or any other suitable mechanism.

[0043] In one aspect, the radio control circuitry processes radio signals according to the Bluetooth low energy and WiFi protocols, and the host circuitry processes radio signals according to the Bluetooth low energy protocol.

[0044] Although examples have been described above, other modifications and examples may be made in accordance with this disclosure without departing from the spirit and scope of these disclosed examples.

Claims

1. A method, comprising: establishing communication between a first device having first device identification information and a second device having radio control circuitry and host circuitry, wherein the first device identification information is transmitted to and stored by the radio control circuitry of the second device; operating the second electronic device in a sleep mode that maintains operating power to the radio control circuitry without maintaining operating power to the host circuitry; detecting, by the radio control circuit of the second device, a radio advertising signal from the first device including identification information of the first device; as well as In response to detecting the radio advertising signal, waking the second device from the sleep mode to operate in a wake-up mode that maintains operating power to both the radio control circuitry and the host circuitry, wherein in the wake-up mode the first device is able to establish a control link with the host circuitry of the second device.

2. The method of claim 1, comprising establishing the control link between the host circuits of the first device and the second device after the radio advertising signal including the first device identification information from the first device is detected by the radio control circuit. 3 . The method of claim 1 , wherein the first device identification information is transmitted via a signal selected from Bluetooth, Wi-Fi, and ZigBee.

4. The method of claim 1, claim 2 or claim 3, wherein the advertising signal comprises a Bluetooth low energy radio signal.

5. A method according to claim 1, claim 2 or claim 3, the method comprising comparing, by the radio control circuit, the detected first device identification information included in the radio advertising signal from the first device with the stored first device identification information.

6. The method of claim 1, claim 2 or claim 3, wherein the second electronic device comprises a microprocessor, the microprocessor comprises the host circuitry, and the host circuitry comprises a BLE stack.

7. The method of claim 1, claim 2 or claim 3, wherein the second electronic device comprises a microprocessor, the microprocessor comprising the radio control circuitry and the host circuitry.

8. The method of claim 1, claim 2 or claim 3, wherein the electronic device is a line powered electronic device.

9. A device, comprising: Radio antennas; a microprocessor in signal communication with the radio antenna and comprising: a radio control circuit in communication with the radio antenna to store identification information of a remote controller and detect an advertisement signal from the remote controller including the identification information of the remote controller; and host circuitry in communication with the radio antenna to establish a control link with the remote controller; wherein the device is capable of operating in a low power mode in which operating power is maintained to the radio control circuitry but not to the host circuitry, wherein the device is capable of operating in a high power mode in which operating power is maintained for both the radio control circuitry and the host circuitry, and wherein the device switches from the low power mode to the high power mode in response to detection by the radio control circuit of a radio advertising signal including the identification information of the remote controller.

10. The device of claim 9, wherein the radio control circuit triggers the device to operate in the high power mode when the radio control circuit detects the radio advertising signal including the identification information of the remote controller.

11. A device according to claim 9 or claim 10, wherein the remote controller is an application for a smartphone and the radio control circuit is paired with the smartphone and stores smartphone identification information from the pairing.

12. The device of claim 11 or claim 10, wherein the remote controller is an application of a smart phone, and wherein the radio control circuit pairs with the smart phone by transmitting a signal selected from Bluetooth, Wi-Fi and ZigBee.

13. The device of claim 9, comprising a comparator circuit to compare the identification information of the remote controller stored by the radio control circuit with the identification information of the remote controller of the radio advertisement signal.

14. A device according to claim 9 or claim 13, wherein the radio control circuit processes radio signals according to Bluetooth low energy and WiFi protocols, and wherein the host circuit processes radio signals according to the Bluetooth low energy protocol.

15. A device as claimed in claim 9 or claim 10, wherein the device is a line powered electronic device.

16. A system, comprising: A remote controller, wherein the remote controller has remote controller identification information; and a line-powered electronic device, the line-powered electronic device comprising: Radio antennas; a radio control circuit in communication with the radio antenna, the radio control circuit being configured to store identification information of a remote controller and to detect a radio advertising signal from the remote controller including the identification information; a host circuit in communication with the radio antenna, the host circuit being configured to establish a control link with the remote controller; The radio control circuit is configured to wake up the host circuit in response to detection by the radio control circuit of a radio advertising signal including identification information of the remote controller.

17. The system of claim 16, wherein the radio control circuitry and the host circuitry are capable of processing radio signals according to the Bluetooth low energy protocol.

18. A system according to claim 16 or claim 17, comprising a comparator circuit capable of comparing remote controller identification information stored by the radio control circuit with the remote controller identification information of a radio advertising signal.

19. The system of claim 16, comprising a microprocessor including the radio control circuitry and the host circuitry.

20. The system of claim 16 or claim 19, wherein the line-powered electronic device is operable in a sleep mode, wherein the line-powered electronic device is operable in a wake-up mode, and wherein waking up the host circuitry comprises switching from the sleep mode to the wake-up mode.

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