TWI641944B - Electronic device having an auxiliary device for waking and an auxiliar method for waking applied therein - Google Patents

Abstract

The present invention relates to an electronic system having a wake-up assisting device, comprising: a main control unit; a micro control unit; and a universal serial bus bar electrically connected to the main control unit and the micro control unit, the universal serial confluence The row is configured to receive a trigger packet from a USB peripheral device; wherein the micro control unit generates a wake-up signal to the main control unit in a non-data transmission mode because the packet should be triggered; the case is also related to an application to the electronic A wake-up assisting method for waking up a main control unit, the method comprising: providing a first electrical connection path electrically connected to a micro control unit and a universal serial bus; providing a second electrical connection path electrically connected The micro control unit and the main control unit; and causing the micro control unit to receive the trigger packet via the first electrical connection path, and generate a wakeup signal according to the triggering of the packet, and transmit the signal to the second electrical connection path Main control unit.

Description

Electronic system with wake-up aid and wake-up assist method applied thereto

The present invention relates to an auxiliary operation field of an electronic system, in particular, an auxiliary electronic system that determines whether it can be awakened by a peripheral device to return to a normal operation mode of a data transmission mode.

Awakening an electronic system in standby or hibernation is a control technology commonly used today between electronic systems and their peripheral devices. For example, Wake On Lan (WOL) uses a network card to continuously detect signals sent from the outside world. When detecting a specific packet transmission signal, for example, it is broadcast by a remote software. When the signal sent by the method includes a set of magic package, a power-on signal is sent to the motherboard, and the motherboard can automatically wake up and start the program after actively detecting the boot signal.

In addition to remote wake-up, the user directly presses a specific control button built into or integrated in the electronic system, which is one of the ways to wake up the electronic system. However, this method is related to the main control unit still required by the electronic system ( For example, the main control microprocessor chip is constantly actively detecting And perform wake-up functions.

To further illustrate the operation of the prior art, please refer to the architectural block diagram of the conventional electronic system shown in FIG. 1 and its peripheral devices. Among them, the conventional electronic system 10 (for example, various computer devices, POS devices, or The handheld electronic device or the like includes at least one main control unit 11 and is electrically connected to a universal serial bus (USB) 101 through an electrical connection path L11. Meanwhile, the main control unit 11 also The universal serial bus bar 101 is electrically connected to a universal serial busbar peripheral device (also referred to as a USB peripheral device) 40 located outside.

However, the above conventional practice has a problem in that when the operating system (OS) operating therein wants the main control unit 11 to enter a so-called sleep or standby mode (or may be referred to as a non-data transmission mode), the main The control unit 11 actually consumes a certain amount of energy continuously to actively detect whether the USB peripheral device 40 has transmitted a packet to trigger the packet P11 to know whether the external device performs a wake-up operation through the USB peripheral device 40. Furthermore, if the main control is performed When the unit 11 detects the trigger packet P11 from the USB peripheral device 40, it can be woken up and switched back to the normal working mode (or can be referred to as a data transmission mode) to re-run with the USB peripheral device 40. Reception and transmission of general data packet P12.

At this point, it can be seen that the conventional electronic system 10 still consumes a certain amount of energy to actively detect the external wake-up signal; on the contrary, if the power consumption of the electronic system 10 is further saved, and the operating system makes the main When the control unit 11 enters a true sleep or standby mode (ie, no longer burdens the active detection of the external wake-up function), the user sometimes faces a USB peripheral device 40 that cannot be electrically connected to the conventional electronic system 10. To quickly wake up the electronic system 10 so that the designer is caught in the pursuit of more power, or provide users Better operational convenience and other two dilemmas facing the need for a treatment.

In order to solve the aforementioned prior art deficiencies, one of the main purposes of the present invention is to provide a wake-up assisting device and method for an electronic system, wherein the wake-up assisting device includes at least a micro control unit electrically connected to the universal in the electronic system. Serial bus and wake-up auxiliary device as auxiliary detection device of electronic system, when the electronic system enters full sleep or standby mode (ie, no longer burdens the active detection of external wake-up function) The device is responsible for actively detecting the trigger packet transmitted from the external USB peripheral device and passing through the universal serial bus, and after the wake-up auxiliary device receives the trigger packet, the wake-up electronic system is further activated to simultaneously achieve The electronic system is truly dormant and energy efficient, and provides the dual purpose of the user to wake up the electronic system at any time and quickly via the USB peripheral device.

In a preferred embodiment, the present invention relates to an electronic system having a wake-up assisting device, comprising: a main control unit; a universal serial bus (USB), electrically connected to the main control unit and a USB peripheral device And a micro control unit (Micro Control Unit) electrically connected to the universal serial bus bar by a first electrical connection path, and electrically connected to the main control unit by a second electrical connection path; wherein The micro control unit detects a trigger packet from the USB peripheral device and passes through the universal serial bus bar via the first electrical connection path, and generates a wakeup signal according to the trigger packet, and then connects to the second electrical connection according to the trigger packet. The path transmits the wake-up signal to the main control unit in a non-data transfer mode.

In the above preferred embodiment, the first electrical connection path includes a The packet detecting component is configured to turn on the first electrical connection path when the trigger packet is received, so that the micro control unit can receive the trigger packet, and generate the wake-up signal accordingly.

In the above preferred embodiment, the packet detecting component is a diode component.

In the above preferred embodiment, wherein the diode element has a forward bias voltage of at least 0.7 volts, and the trigger package has an operating voltage of 3.3 volts to 5 volts.

In the above preferred embodiment, the main control unit activates the micro control unit to detect the trigger packet when the electronic system enters the non-data transmission mode.

In the above preferred embodiment, when the main control unit enters a data transmission mode, the main control unit is used to communicate with the USB peripheral via a third electrical connection path electrically connected to the universal serial bus. A data transmission packet is transmitted or received between the devices.

In the above preferred embodiment, the data transmission packet has an operating voltage equal to or less than 0.5 volts.

In another preferred embodiment, the present invention relates to an electronic system having a wake-up assisting device, comprising: a main control unit; a universal serial bus bar electrically connected to the main control unit, the universal serial bus bar for receiving from a triggering packet of a USB peripheral device; and a wake-up assisting device electrically connected to the main control unit and the universal serial busbar; wherein the wake-up assisting device generates a wake-up signal to be in a non- The main control unit of the data transmission mode.

In the above preferred embodiment, the wake-up assisting device includes at least one Micro Control Unit, and the micro control unit is electrically connected by a first electrical connection path. Connected to the universal serial bus and electrically connected to the main control unit by a second electrical connection path.

In the above preferred embodiment, the wake-up assisting device further includes a packet detecting component disposed on the first electrical connection path for detecting that the triggering packet is present when the universal serial busbar is turned on. The first electrical connection path is for the micro control unit to receive the trigger packet, and the wake-up signal is generated accordingly.

In another preferred embodiment, the present invention relates to an electronic system having a wake-up assisting device, comprising: a main control unit; a universal serial bus bar electrically connected between the main control unit and a USB peripheral device; and a micro The control unit is electrically connected to the universal serial bus with a first electrical connection path having a packet detecting component, and is electrically connected to the main control unit by a second electrical connection path; wherein the micro control unit borrows The packet detecting component detects a trigger packet from the USB peripheral device and passes through the universal serial bus, and generates a wake-up signal according to the trigger packet, and transmits the second electrical connection path according to the trigger packet. The wake-up signal is given to the main control unit in a non-data transmission mode.

In the above preferred embodiment, the packet detecting component is a diode component.

In the above preferred embodiment, wherein the diode element has a forward bias voltage of at least 0.7 volts, and the trigger package has an operating voltage of 3.3 volts to 5 volts.

In a preferred embodiment, the present invention relates to a wake-up assist method for an electronic system for waking up a main control unit, the method comprising: providing a first electrical connection path electrically connected to a micro control unit and a universal serial a busbar; providing a second electrical connection path electrically connected to the micro control unit and the main control unit; detecting from a USB peripheral device and located a trigger packet on the universal serial bus, and when the trigger packet causes the first electrical connection path to be turned on, the micro control unit receives the trigger packet; and the micro control unit generates a wakeup signal because the packet should be triggered Give the main control unit.

In the above preferred embodiment, the first electrical connection path includes a packet detecting component for turning on the first electrical connection path when the triggering packet is received, so that the micro control unit can receive the trigger. Packet and respond to the wake-up signal

In the above preferred embodiment, the packet detecting component is a diode component.

In the above preferred embodiment, wherein the diode element has a forward bias voltage of at least 0.7 volts, and the trigger package has an operating voltage of 3.3 volts to 5 volts.

In the above preferred embodiment, before the micro control unit receives the trigger packet, the method further includes the step of: initiating the micro control unit by the main control unit in a non-data transmission mode to detect the trigger packet.

In the above preferred embodiment, after the main control unit receives the wake-up signal, the method further includes the steps of: entering a data transmission mode and the main control unit is electrically connected to the universal serial bus The three electrical connection path is for transmitting or receiving a data transmission packet with the USB peripheral device.

In the above preferred embodiment, the data transmission packet has an operating voltage equal to or less than 0.5 volts.

10, 20, 30‧‧‧ Electronic systems

11, 21, 31‧‧‧ main control unit

22, 32‧‧‧Wake-up aids

221, 321‧‧‧ micro control unit

222‧‧‧Packet detection component

101, 201, 301‧‧‧ universal serial bus

40‧‧‧Common serial busbar peripherals

L11‧‧‧Electrical connection path

L21, L31‧‧‧ first electrical connection path

L22, L32‧‧‧ second electrical connection path

L23, L33‧‧‧ third electrical connection path

P11, P21, P31‧‧‧ trigger packets

P12, P22, P32‧‧‧ data transmission package

S21, S31‧‧‧ wake-up signal

S40~S48‧‧‧Steps

FIG. 1 is a block diagram showing the architecture of a conventional electronic system and its peripheral devices.

FIG. 2 is a block diagram showing a first preferred embodiment of the electronic system with the wake-up assisting device and its peripheral devices.

FIG. 3 is a block diagram showing a second preferred embodiment of the electronic system having the wake-up assisting device and its peripheral devices.

FIG. 4 is a schematic flow chart of a preferred implementation concept of a wake-up assist method applied to an electronic system.

The electronic system referred to in the present invention has a universal serial bus (USB) through which electrical signals are transmitted between the electronic system and the USB peripheral device. Therefore, the electronic system of the present case can be applied to a POS device, a desktop or mobile computer, a tablet computer, a wearable electronic system, or a smart phone, for example, but not limited to.

Secondly, the non-data transmission mode referred to in the present invention refers to the operation system (OS) in the electronic system that causes the main control unit to be in standby, hibernation or shutdown mode. Generally, an electronic system can access a data transmission packet transmitted in a universal serial bus in an operating mode (or referred to as a data transmission mode), and the data transmission packet has an operating voltage equal to or less than 0.5 volts.

Furthermore, the USB peripheral device can communicate with an electronic system that can transmit data or instructions to the electronic system or accept data or instructions from the electronic system. The USB peripheral device of the present invention can communicate with the universal serial busbar of the electronic system through a part of itself, for wired communication, or through a transmitter connected to the universal serial busbar for wireless communication. Therefore, the USB (Universal Serial Bus) peripheral device referred to in the following case may refer to The USB peripheral device itself is a transmitter that is wirelessly connected to the USB peripheral device; and the USB peripheral device in this case may be, for example, a touch pad, a stylus or a glove input device or the like.

Referring to FIG. 2, it is a block diagram of a first preferred implementation architecture between the electronic system having the wake-up assisting device and the peripheral device thereof; wherein the electronic system 20 includes: a main control unit 21 and a wake-up assisting device 22; The main control unit 21 is electrically connected to the universal serial bus bar 201 by a third electrical connection path L23, and is further electrically connected to the USB peripheral device 40.

Furthermore, the wake-up assisting device 22 of the present invention includes a micro control unit 221 and a packet detecting component 222; wherein the micro control unit 221 is electrically connected to the universal serial busbar 201 with a first electrical connection path L21, and is connected by a second electrical connection. The path L22 is electrically connected to the main control unit 21; wherein one of the packet detecting elements 222 is preferably a diode element having a forward bias voltage of at least 0.7 volts and disposed on the first electrical connection path L21 on.

Based on the following, the working principle of the first preferred embodiment of the present invention is further explained: when the operating system (OS) operating in the electronic system 20 causes the main control unit 21 to enter a so-called sleep or standby mode (or may be referred to as a In the case of the non-data transmission mode, the main control unit 21 in the non-data transmission mode activates the micro control unit 221 in the wake-up assistant 22 to detect whether or not the trigger packet P21 is received; The body element 222 is disposed on the first electrical connection path L21, and the operating voltage of the trigger packet P21 is 3.3 volts to 5 volts. Therefore, once the USB peripheral device 40 responds to the user's activation, the output trigger packet P21 is generated. When on the bus bar 201, the diode element 222 will obviously be turned on so that the micro control unit 221 can receive the trigger packet P21.

In addition, when the micro control unit 21 receives the trigger packet P21, it generates a wake-up signal S21 according to the trigger packet P21, and transmits it to the main control unit in a non-data transmission mode via the second electrical connection path L22. 21, in this way, the main control unit 21 can re-enter a data transmission mode of normal operation, and the main control unit 21 is electrically connected to the third electrical connection path L23 of the universal serial busbar 201 to communicate with the USB peripheral device. The data transmission packet P22 is transmitted or received between 40.

Wherein, since the working voltage of the data transmission packet P22 is equal to or less than 0.5 volt, the data transmission packet P22 cannot make the diode element 222 be turned on (that is, the diode element 222 is in a closed state). That is to say, during the normal operation of transmitting or receiving the data transmission packet P22 between the main control unit 21 and the USB peripheral device 40, the micro control unit 21 is not interfered by the data transmission packet P22, and no malfunction occurs. . From another point of view, the micro control unit 21 can be implemented using a relatively low-order microcontroller, and it is guaranteed that no malfunction occurs, so as to further reduce the production cost of the electronic system.

As can be seen from the above, in the preferred implementation architecture shown in FIG. 2, when the electronic system 20 enters a full sleep or standby mode (ie, no longer burdens the active detection of the external wake-up function), the wake-up assisting device 22 is responsible for the initiative. The trigger packet P22 transmitted from the external USB peripheral device 40 via the universal serial bus bar 201 is detected, and after the wake-up assistant device 22 receives the trigger packet P22, the wake-up electronic system 20 is further activated to simultaneously The electronic system 20 is truly dormant and energy efficient, and provides the user with the convenience of waking up the electronic system 20 at any time and quickly via the USB peripheral device 40.

Of course, this case also proposes another implementation that can be chosen by the designer. A higher-order microcontroller is used to implement the micro-control unit in the foregoing wake-up auxiliary device. According to another preferred implementation structure of the present invention, please refer to FIG. 3, which is an electronic device with a wake-up auxiliary device. A block diagram of a second preferred embodiment of the system and its peripheral devices.

The electronic system 30 of FIG. 3 includes a main control unit 31 electrically connected to the universal serial bus bar 301 and thus electrically connected to the USB peripheral device 40 in a third electrical connection path L33, similar to the components having similar functions in FIG. The architecture is not repeated here.

The difference between the embodiment shown in FIG. 3 and the embodiment shown in FIG. 2 is that the wake-up assisting device 32 included in the electronic system 30 can use only a higher order (for example, a more complex logic command judgment capability). The control unit 321 can be implemented, and the micro control unit 321 is also electrically connected to the universal serial bus bar 301 by the first electrical connection path L31, and is electrically connected to the main control unit 31 by the second electrical connection path L32; Therefore, the micro control unit 321 has to bear the judgment of the packet received from the universal serial bus 301, which belongs to the micro control unit 321 to further generate and output the wakeup signal S31 to the main control unit 31. Whether the packet P31 is triggered or only belongs to the data transmission packet P32 when the main control unit 31 and the USB peripheral device 40 perform normal transmission or reception. Of course, in another preferred embodiment shown in FIG. 3, the object of improving the prior art can also be achieved.

Of course, the present invention also includes a wake-up assistance method that can be applied to the electronic system in the foregoing embodiments to wake up the main control unit in the foregoing embodiments. FIG. 4 is a comparison of the present embodiment. A schematic diagram of the flow of the implementation concept, and is not limited thereto: Step S40: Start; Step S41: providing a first electrical connection path electrically connected to the micro control unit and the universal serial bus in the wake-up auxiliary device; step S42: providing a second electrical connection path electrically connected to the micro control unit and the main control unit; step S43: Determining whether the operating system (OS) operating in the electronic system causes the main control unit to enter a non-data transmission mode; if yes, proceeding to the next step S44, if otherwise returning to the foregoing step S43; and step S44: when operating in the electronic system When the operating system causes the main control unit to enter the non-data transmission mode, the main control unit in the non-data transmission mode synchronously starts the micro control unit to detect the universal serial bus; step S45: determining whether there is a trigger packet via the first electrical connection path Receiving by the micro control unit; if yes, proceeding to the next step S46, if otherwise, returning to the foregoing step S45; step S46: when the micro control unit receives the trigger packet, the micro control unit triggers the packet to generate a wakeup signal, and The second electrical connection path is transmitted to the main control unit; step S47: when the foregoing main control unit receives the wake-up signal, the main The control unit re-enters a data transmission mode, and the main control unit electrically connects to the third electrical connection path of the universal serial bus to transmit or receive the data transmission packet with the USB peripheral device; and step S48: ends.

In summary, the electronic system with the wake-up assist device disclosed in the present application and the wake-up assisting method applied thereto can simultaneously achieve the true dormancy and energy saving of the electronic system, and provide the user with the USB peripheral device at any time. Quickly awaken the operational convenience of the electronic system; therefore, the case is a very industrial value.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the patent application in this case. Therefore, any equivalent changes or modifications made without departing from the spirit of the present disclosure should be included in the patent application in this case. Within the scope.

Claims (15)

An electronic system having a wake-up assisting device, comprising: a main control unit; a universal serial bus (USB) electrically connected between the main control unit and a USB peripheral device; and a micro control unit (Micro Control Unit), electrically connected to the universal serial busbar by a first electrical connection path, and electrically connected to the main control unit by a second electrical connection path; wherein the micro control unit is connected to the first power Connecting a path to detect a trigger packet from the USB peripheral device and passing through the universal serial bus, and generating a wake-up signal according to the trigger packet, and transmitting the wake-up signal to the second electrical connection path to a non-data transmission mode of the main control unit, and the first electrical connection path includes a packet detecting component for turning on the first electrical connection path when the triggering packet is received, so that the micro control unit can receive The trigger packet is generated and the wake-up signal is generated accordingly. An electronic system having a wake-up assisting device as described in claim 1, wherein the packet detecting component is a diode component. An electronic system having a wake-up aid as described in claim 2, wherein the diode element has a forward bias voltage of at least 0.7 volts and the trigger package operates from 3.3 volts to 5 volts. An electronic system having a wake-up assisting device as described in claim 1, wherein the main control unit activates the micro control unit to detect the trigger packet when the electronic system enters the non-data transmission mode. An electronic system having a wake-up assisting device as described in claim 1, wherein when the main control unit enters a data transmission mode, the first electrical connection path is electrically connected to one of the universal serial bus bars, The main control unit is configured to transmit or receive a data transmission packet with the USB peripheral device. An electronic system having a wake-up aid as described in claim 5, wherein the data transmission packet has an operating voltage equal to or less than 0.5 volts. An electronic system with auxiliary wake-up includes: a main control unit; a universal serial bus bar electrically connected to the main control unit, the universal serial bus bar for receiving a trigger packet from a USB peripheral device; a wake-up auxiliary device, comprising: at least one micro control unit electrically connected to the universal serial busbar by a first electrical connection path, and electrically connected to the main control unit by a second electrical connection path; and a packet The detecting component is disposed on the first electrical connection path, and is configured to detect the triggering packet in the universal serial bus, and turn on the first electrical connection path, so that the micro control unit receives the trigger packet, and The wake-up signal is generated in response to the wake-up assistance device generating a wake-up signal to the main control unit in a non-data transmission mode. An electronic system with a wake-up auxiliary device includes: a main control unit; a universal serial bus bar electrically connected to the main control unit and a USB peripheral device And a micro control unit electrically connected to the universal serial bus with a first electrical connection path having a packet detecting component, and electrically connected to the main control unit by a second electrical connection path; The micro control unit detects the trigger packet from the USB peripheral device and passes through the trigger packet on the universal serial bus, and generates a wakeup signal according to the trigger packet, and then passes the second The electrical connection path transmits the wake-up signal to the main control unit in a non-data transmission mode, and the packet detecting component is a diode component having a forward bias voltage of at least 0.7 volts, the trigger packet The operating voltage is 3.3 volts to 5 volts. A wake-up assisting method for an electronic system for waking up a main control unit, the method comprising: providing a first electrical connection path electrically connected to a micro control unit and a universal serial bus; providing a second electrical connection The path is electrically connected to the micro control unit and the main control unit; detecting a trigger packet from a USB peripheral device and located on the universal serial bus, and when the trigger packet makes the first electrical connection path conductive The micro control unit receives the trigger packet; and the micro control unit generates a wakeup signal to the main control unit because the packet should be triggered. The wake-up assisting method applied to the electronic system, as described in claim 9, wherein the first electrical connection path includes a packet detecting component, configured to turn on the first electrical connecting path when the triggering packet is received, So that the micro control unit can receive the trigger packet and generate the wake-up signal accordingly. A wake-up assist method applied to an electronic system as claimed in claim 10, wherein The packet detecting component is a diode component. The wake-up assist method applied to an electronic system according to claim 11, wherein the diode element has a forward bias voltage of at least 0.7 volts, and the trigger package has an operating voltage of 3.3 volts to 5 volts. The wake-up assistance method applied to an electronic system according to claim 9, wherein before the micro control unit receives the trigger packet, the method further includes the following steps: starting the primary control unit in a non-data transmission mode The micro control unit detects the trigger packet. The wake-up assisting method applied to the electronic system according to claim 9, wherein after the main control unit receives the wake-up signal, the method further includes the following steps: entering a data transmission mode and the main control unit is electrically connected And a third electrical connection path of the universal serial bus to transmit or receive a data transmission packet with the USB peripheral device. The wake-up assisting method applied to an electronic system according to claim 14, wherein the data transmission packet has an operating voltage equal to or less than 0.5 volts.