Wireless charging receiver group authentication

The present invention provides a mobile apparatus with wireless charging function and an accessory apparatus with wireless charging function capable of allowing a wireless power receiver (PRX) to communicate with a CPU of a mobile device, so as to solve the problem mentioned above. The mobile apparatus comprises: a processing circuit and a wireless power receiver (PRX). The PRX is coupled to the processing circuit and wirelessly connected to a wireless power transmitter (PTX) of a wireless charger, for receiving a wireless power, wherein the PRX receives a first authentication request signal from the PTX and then sends a second authentication request signal to the processing circuit, and the processing circuit sends a second authentication information to the PRX, and the PRX sends a first authentication information to the PTX.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a mobile apparatus and an accessory apparatus with wireless charging function, and more particularly, to a mobile apparatus and an accessory apparatus with wireless charging function capable of allowing a wireless power receiver (PRX) to communicate with a CPU of a mobile device.

2. Description of the Prior Art

Wireless Power Consortium (WPC) and air fuel alliance (AFA) are two leading organizations in the world for developing wireless charging standard. The document “The Qi Wireless Power Transfer System—Power Class 0 Specification” released in April 2016 describes the interaction between a wireless power transmitter (PTX) and a wireless power receiver (PRX). In commercial wireless power systems, the PRX designed for a smart phone usually has no way to communicate with a CPU of the smart phone. It means, if the authentication is required, the PRX has to generate a reliable password by itself and sent it to the PTX.

SUMMARY OF THE INVENTION

It is therefore one of the objectives of the disclosure to provide a mobile apparatus with wireless charging function and an accessory apparatus with wireless charging function capable of allowing a wireless power receiver (PRX) to communicate with a CPU of a mobile device, so as to solve the problem mentioned above.

In accordance with an example of the present invention, a mobile apparatus with wireless charging function is disclosed. The mobile apparatus comprises: a processing circuit and a wireless power receiver (PRX). The PRX is coupled to the processing circuit and wirelessly connected to a wireless power transmitter (PTX) of a wireless charger, for receiving a wireless power, wherein the PRX receives a first authentication request signal from the PTX and then sends a second authentication request signal to the processing circuit, and the processing circuit sends a second authentication information to the PRX, and the PRX sends a first authentication information to the PTX.

In accordance with an example of the present invention, an accessory apparatus with wireless charging function is disclosed. The accessory apparatus comprises: a wireless power receiver (PRX). The PRX is coupled to a mobile apparatus and wirelessly connected to a wireless power transmitter (PTX) of a wireless charger, for receiving a wireless power, wherein the PRX receives a first authentication request signal from the PTX and then sends a second authentication request signal to the mobile apparatus, and the PRX further receives a second authentication information from the mobile apparatus and then sends a first authentication information to the PTX.

Briefly summarized, the remote management system and the remote management method for wireless charging disclosed by the present invention are capable of allowing a PRX to communicate with a CPU of a mobile device.

DETAILED DESCRIPTION

Please refer toFIG. 1andFIG. 2together.FIG. 1is a simplified block diagram of a mobile apparatus100with wireless charging function in accordance with a first example of the present invention, wherein the mobile apparatus100may be a mobile phone, a tablet, a personal digital assistant (PDA), a lap top computer, a digital camera, a music player, a game device, or any other device with a processor.FIG. 2is a simplified diagram of a signal flow in accordance with the first example of the present invention. As shown inFIG. 1, the mobile apparatus100comprises: a processing circuit110, a wireless power receiver (PRX)120, and a communication circuit130, wherein the processing circuit110may be a CPU and comprise a processor, a memory, and a communication circuit, and the PRX120may be a wireless power reception module defined by the Wireless Power Consortium (WPC) specification, which consists of a coil, an analog circuit (e.g. a rectifier) and a control IC. The PRX120is coupled to the processing circuit110and wirelessly connected to a wireless power transmitter (PTX)210of a wireless charger200, wherein the PTX210may be a wireless power transmission module defined by the WPC specification, which consists of a coil, an analog circuit (e.g. a matching circuit) and a control IC, and the PRX120may be coupled to the processing circuit110via a bus140. In addition, the wireless charger200may be a device which includes a wireless power transmission module or further includes other modules such as a BLE module or a LCD module. For example, the wireless charger200may be a wireless charging pad.

As shown inFIG. 2, The PTX210may provide a wireless power to the PRX120to initiate an In-band communication so that the PTX210send a first authentication request signal R1to the PRX120(i.e. the PRX120receives the wireless power and the first authentication request signal R1from the PTX210), wherein the In-band communication means the communication signal is attached on the wireless power signal. For example, the In-band communication may be the Load Modulation and FSK defined in the WPC specification. In addition, the first authentication request signal R1may be just a bit. Next, the PRX120will send a second authentication request signal R2to the processing circuit110, wherein the second authentication request signal R2may include a bit and an ID of the PRX120.

In addition, the communication circuit130is coupled to the processing circuit110, and utilized for sending a third authentication request signal R3to a first server280, wherein the third authentication request signal R3may include a bit, the ID of the PRX120and an ID of the mobile apparatus100. Next, the first server280will send a third authentication information A3according to the third authentication request signal R3to the communication circuit130of the mobile apparatus100, wherein the third authentication information A3may include a password, the ID of the PRX120and the ID of the mobile apparatus100. Next, the processing circuit110of the mobile apparatus100will send a second authentication information A2to the PRX120, wherein the second authentication information A2may include the password and the ID of the PRX120. Next, the PRX120will send a first authentication information A1to the PTX210, wherein the first authentication information A1may be only the password. Please note that the formats and encoding schemes of the first authentication request signal R1, the second authentication request signal R2, and the third authentication request signal R3may be different according to different design requirement, and the formats and encoding schemes of the first authentication information A1, the second authentication information A2and the third authentication information A3also may be different according to different design requirement.

In addition, the wireless charger200may further comprise a processing circuit210. In one example, the processing circuit210may control the wireless charger200whether to keep or stop providing the wireless power, and in another example, the processing circuit210may adjust a power level of the wireless power according to the first authentication information A1. For example, the processing circuit210may determine to select a fast charging mode, a normal charging mode, or a slow charging mode for charging the different mobile apparatuses with different access authorities according to the first authentication information A1.

In another example, the wireless charger200also may be integrated in a light device or an electronic device (such as a control device integrated in a car or a home appliance), and the processing circuit110can control the light device or the electronic device according to the first authentication information A1. For example, the processing circuit110can control the light device or the electronic device to turn on or turn off.

In addition, if the wireless charger200does not have a enough memory space for storing data corresponding to the first authentication information A1for identifying the different mobile apparatuses with different access authorities, the wireless charger200may further comprise a communication circuit230for sending the first authentication information A1to a second server290, and the second server290will respond with a feedback signal S1to the wireless charger200. In one example, the second server290may respond with the feedback signal S1to control the wireless charger200whether to keep or stop providing the wireless power, or adjust a power level of the wireless power according to the first authentication information A1. For example, the second server290may respond with the feedback signal S1to control the wireless charger200to determine to select a fast charging mode, a normal charging mode, or a slow charging mode for charging the different mobile apparatuses with different access authorities according to the first authentication information A1.

In another example, the wireless charger200also may be integrated in a light device or an electronic device (such as a control device integrated in a car or a home appliance), and the second server290may respond with the feedback signal S1to control the light device or the electronic device according to the first authentication information A1. For example, the second server290may respond with the feedback signal S1to control the light device or the electronic device to turn on or turn off. Please note that the above example is only for an illustrative purpose and is not meant to be a limitation of the present invention. For example, the first server280and the second server290may be one and the same, that is, the first server280and the second server290may be combined to one server according to different design requirement.

Please refer toFIG. 3andFIG. 4together.FIG. 3is a simplified block diagram of an accessory apparatus300with wireless charging function in accordance with a second example of the present invention.FIG. 4is a simplified diagram of a signal flow in accordance with the first example of the present invention. As shown inFIG. 3, the accessory apparatus300comprises a wireless power receiver (PRX)310, wherein the PRX310may be coupled to a mobile apparatus400via a connecting cable450such as a Micro-USB cable, a Lightening cable, or a USB type C cable, and the PRX310may be a wireless power reception module defined by the Wireless Power Consortium (WPC) specification, which consists of a coil, an analog circuit (e.g. a rectifier) and a control IC. The PRX310may be coupled to a processing circuit410of the mobile apparatus400and wirelessly connected to a wireless power transmitter (PTX)510of a wireless charger500, wherein the PTX510may be a wireless power transmission module defined by the WPC specification, which consists of a coil, an analog circuit (e.g. a matching circuit) and a control IC, and the processing circuit410may be a CPU and comprise a processor, a memory, and a communication circuit. In addition, the wireless charger200may be a device which includes a wireless power transmission module or further includes other modules such as a BLE module or a LCD module. For example, the wireless charger200may be a wireless charging pad. In addition, the mobile apparatus400may be a mobile phone, a tablet, a personal digital assistant (PDA), a lap top computer, a digital camera, a music player, a game device, or any other device with a processor.

As shown inFIG. 4, The PTX510may provide a wireless power to the PRX310to initiate an In-band communication so that the PTX510send a first authentication request signal R1to the PRX310(i.e. the PRX310receives the wireless power and the first authentication request signal R1from the PTX510), wherein the In-band communication means the communication signal is attached on the wireless power signal. For example, the In-band communication may be the Load Modulation and FSK defined in the WPC specification. In addition, the first authentication request signal R1may be just a bit. Next, the PRX310will send a second authentication request signal R2to the mobile apparatus400(or to the processing circuit410of mobile apparatus400), wherein the second authentication request signal R2may include a bit and an ID of the PRX310.

In addition, the communication circuit430is coupled to the processing circuit410as shown inFIG. 3, and utilized for sending a third authentication request signal R3to a first server580, wherein the third authentication request signal R3may include a bit, the ID of the PRX310and an ID of the mobile apparatus400. Next, the first server580will send a third authentication information A3according to the third authentication request signal R3to the communication circuit430of the mobile apparatus400, wherein the third authentication information A3may include a password, the ID of the PRX310and the ID of the mobile apparatus400. Next, the mobile apparatus400(or the processing circuit410of the mobile apparatus400) will send a second authentication information A2to the PRX310, wherein the second authentication information A2may include the password and the ID of the PRX310. Next, the PRX310will send a first authentication information A1to the PTX510, wherein the first authentication information A1may be only the password. Please note that the formats and encoding schemes of the first authentication request signal R1, the second authentication request signal R2, and the third authentication request signal R3may be different according to different design requirement, and the formats and encoding schemes of the first authentication information A1, the second authentication information A2and the third authentication information A3also may be different according to different design requirement.

In addition, the wireless charger500may further comprise a processing circuit510. In one example, the processing circuit510may control the wireless charger500whether to keep or stop providing the wireless power, and in another example, the processing circuit510may adjust a power level of the wireless power according to the first authentication information A1. For example, the processing circuit510may determine to select a fast charging mode, a normal charging mode, or a slow charging mode for charging the different mobile apparatuses with different access authorities according to the first authentication information A1.

In another example, the wireless charger500also may be integrated in a light device or an electronic device (such as a control device integrated in a car or a home appliance), and the processing circuit510can control the light device or the electronic device according to the first authentication information A1. For example, the processing circuit510can control the light device or the electronic device to turn on or turn off.

In addition, if the wireless charger500does not have a enough memory space for storing data corresponding to the first authentication information A1for identifying the different mobile apparatuses with different access authorities, the wireless charger500may further comprise a communication circuit530for sending the first authentication information A1to a second server590, and the second server590will respond with a feedback signal S1to the wireless charger500. In one example, the second server590may respond with the feedback signal S1to control the wireless charger500whether to keep or stop providing the wireless power, or adjust a power level of the wireless power according to the first authentication information A1. For example, the second server590may respond with the feedback signal S1to control the wireless charger500to determine to select a fast charging mode, a normal charging mode, or a slow charging mode for charging the different mobile apparatuses with different access authorities according to the first authentication information A1.

In another example, the wireless charger500also may be integrated in a light device or an electronic device (such as a control device integrated in a car or a home appliance), and the second server590may respond with the feedback signal S1to control the light device or the electronic device according to the first authentication information A1. For example, the second server590may respond with the feedback signal S1to control the light device or the electronic device to turn on or turn off. Please note that the above example is only for an illustrative purpose and is not meant to be a limitation of the present invention. For example, the first server580and the second server590may be one and the same, that is, the first server580and the second server590may be combined to one server according to different design requirement.

Briefly summarized, the remote management system and the remote management method for wireless charging disclosed by the present invention are capable of allowing a PRX to communicate with a CPU of a mobile device.