CN214900898U - Safety password key and safety password key system - Google Patents
Safety password key and safety password key system Download PDFInfo
- Publication number
- CN214900898U CN214900898U CN202022964666.2U CN202022964666U CN214900898U CN 214900898 U CN214900898 U CN 214900898U CN 202022964666 U CN202022964666 U CN 202022964666U CN 214900898 U CN214900898 U CN 214900898U
- Authority
- CN
- China
- Prior art keywords
- module
- port
- power supply
- unit
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a safe password key and safe password key system. The security key includes: the first connecting module is used for receiving a charging signal; the second connection module is used for receiving a power supply signal; the safety module is connected with the first connecting module; the detection module is respectively connected with the first connection module and the second connection module and is used for detecting the power supply signal; and the control module is respectively connected with the safety module and the second connecting module and used for receiving the power supply signal and controlling the working state of the safety password key according to the power supply signal. The utility model discloses safe password key passes through first linking module and external equipment lug connection to acquire the signal of charging, thereby reduce the product volume of self, and reduction in production cost.
Description
Technical Field
The utility model relates to an electronic product field especially relates to a safe password key and safe password key system.
Background
Currently, with the development of information technology, various industries adopt various security measures and security devices to protect the security of information applications.
In the related art, a cryptographic key is widely used as a device having functions such as network identification, digital certificate storage, digital signature verification, and data encryption and decryption. However, when the password key is connected with the intelligent terminal for use, the password key needs to be powered, so that the product volume and the production cost of the password key are increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a safe password key can be through first connection module and external equipment lug connection to acquire the signal of charging, thereby reduce the product volume of self, and reduction in production cost.
The utility model discloses still provide a safe password key system who has above-mentioned safe password key.
According to the utility model discloses a safe cipher key of first aspect embodiment includes: the first connecting module is used for receiving a charging signal; the second connection module is used for receiving a power supply signal; the safety module is connected with the first connecting module; the detection module is respectively connected with the first connection module and the second connection module and is used for detecting the power supply signal; and the control module is respectively connected with the safety module and the second connecting module and used for receiving the power supply signal and controlling the working state of the safety password key according to the power supply signal.
According to the utility model discloses safe password key has following beneficial effect at least: receive the signal of charging that external equipment provided through first connection module to start the working power supply of security password key, thereby realize the data transmission of security module and external equipment, reduced the product volume of security password key, and reduced manufacturing cost. The second connection module is used for providing a power supply signal for the external equipment so as to realize the charging operation of the external equipment, and the use function of the safety password key is expanded.
According to some embodiments of the present invention, further comprising: the delay module is connected with the second connection module and used for receiving the power supply signal and generating a delay signal according to the power supply signal; and the switch module is respectively connected with the delay module and the safety module, and is used for receiving the delay signal and switching on or off according to the delay signal.
According to some embodiments of the invention, the detection module comprises: the first port of the detection unit and the second port of the detection unit are respectively connected with the first connection module; one end of the first resistor is connected with the first port of the detection unit, and the other end of the first resistor is connected with the second connection module; and one end of the second resistor is connected with the second port of the detection unit, and the other end of the second resistor is connected with the second connection module.
According to some embodiments of the invention, the control module comprises: the control unit, the first port of control unit with the second connection module is connected, the second port of control unit with the safety module is connected, the third port of control unit with the safety module is connected, the fourth port of control unit with the second connection module is connected, the fifth port of control unit with the second connection module is connected, the sixth port of control unit with the first connection module is connected, the seventh port of control unit ground connection, the eighth port of control unit with the first connection module is connected.
According to some embodiments of the invention, the delay module comprises: a delay unit; the switch module includes: and the first port of the switch unit is connected with the first port of the delay unit.
According to some embodiments of the present invention, further comprising: and a first port of the conversion module is connected with the first connection module, and a second port of the conversion module is connected with the safety module and is used for performing voltage conversion operation on the charging signal.
According to the utility model discloses a safe password key system of second aspect embodiment includes: a secure cryptographic key as in any embodiment of the first aspect; the intelligent terminal is connected with the first connecting module and used for providing a charging signal; and the power supply equipment is connected with the second connecting module and is used for providing a power supply signal.
According to some embodiments of the invention, the first connection module comprises: the Type-C unit, the Type-C unit with intelligent terminal connects.
According to some embodiments of the invention, the second connection module comprises: the magnetic charging unit comprises a magnetic charging unit body, a first port of the magnetic charging unit body is connected with a first port of power supply equipment and a second port of the power supply equipment respectively, the second port of the magnetic charging unit body is connected with a third port of the power supply equipment respectively, the third port of the magnetic charging unit body is connected with a fourth port of the power supply equipment and a fifth port of the power supply equipment respectively, and the fourth port of the magnetic charging unit body is connected with a sixth port and a seventh port of the power supply equipment respectively.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention will be further described with reference to the following drawings and examples, in which:
fig. 1 is a block diagram of a security key according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a security module according to an embodiment of the present invention;
fig. 3 is a block diagram of a security key according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a detection module according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a control module according to an embodiment of the present invention;
fig. 6 is a schematic circuit structure diagram of the delay module according to an embodiment of the present invention;
fig. 7 is a schematic circuit diagram of a switch module according to an embodiment of the present invention;
fig. 8 is a block diagram of a security key according to an embodiment of the present invention;
fig. 9 is a schematic circuit diagram of a conversion module according to an embodiment of the present invention;
fig. 10 is a block diagram of a secure passkey system according to an embodiment of the present invention;
fig. 11 is a schematic circuit structure diagram of a Type-C unit of a first connection module according to an embodiment of the present invention;
fig. 12 is a schematic circuit structure diagram of a second connection module and a power supply device according to an embodiment of the present invention.
Reference numerals:
the intelligent terminal comprises a security password key 100, a first connection module 110, a second connection module 120, a magnetic charging unit 121, a security module 130, a detection module 140, a detection unit 141, a control module 150, a control unit 151, a delay module 160, a delay unit 161, a switch module 170, a switch unit 171, a conversion module 180, an intelligent terminal 200 and a power supply device 300.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1 and 2, the present application provides a secure combination key. The security key includes: a first connection module 110, a second connection module 120, a security module 130, a detection module 140, and a control module 150. The first connection module 110 is configured to receive a charging signal; the second connection module 120 is configured to receive a power supply signal; the security module 130 is connected with the first connection module 110; the detection module 140 is connected to the first connection module 110 and the second connection module 120, respectively, and is configured to detect a power supply signal; the control module 150 is connected to the security module 130 and the second connection module 120, respectively, and is configured to receive a power supply signal and control an operating state of the security key according to the power supply signal. Specifically, the security module 130 is a core module of a security key, the security module 130 includes a security chip, the security chip has security service functions such as encryption algorithm, random number generation, key generation, and secure storage, and the security module 130 is connected to the control module 150 through a DP end and a DM end. The safety chip can be packaged by QFN32, and the normal working voltage of the chip is 3.3V. The security key is connected to the external device through the first connection module 110 and the second connection module 120, that is, the first connection module 110 receives a charging signal provided by the external device, and the second connection module 120 receives a power supply signal, and transmits the power supply signal to the external device to supply power to the external device. When the control module 150 receives the power supply signal through the second connection module 120, the control module 150 controls the security code key to be in a power supply state, that is, the power supply signal is used for supplying power to the external device; when the control module 150 does not receive the power supply signal, the control module 150 controls the security password key to be in the OTG mode, that is, the external device provides a working power supply (charging signal) for the security password key, so that data transmission and other operations can be performed between the external device and the security module 130. The detection module 140 is configured to detect a working state of the security password key, and when the detection module 140 detects a power supply signal, it indicates that the security password key is in a power supply state, and at this time, the external device is switched from the OTG mode to the charging mode to receive the power supply signal transmitted by the security password key.
The security password key provided by the embodiment of the application receives the charging signal provided by the external device through the first connection module 110 to start the working power supply of the security password key, thereby realizing the data transmission between the security module 130 and the external device, reducing the product volume of the security password key, and reducing the production cost. The second connection module 120 provides a power supply signal for the external device to realize the charging operation of the external device, thereby expanding the use function of the security password key.
Referring to fig. 3, in some embodiments, the secure passkey further comprises: a delay module 160 and a switch module 170. The delay module 160 is connected to the second connection module 120, and configured to receive the power supply signal and generate a delay signal according to the power supply signal. The switch module 170 is connected to the delay module 160 and the security module 130, respectively, and is configured to receive the delay signal and turn on or off according to the delay signal. Specifically, the switch module 170 is configured to control a state in which the external device receives a power supply signal, when the delay module 160 receives the power supply signal, it indicates that the security key is in the power supply state at this time, the delay module 160 generates a corresponding delay signal, and the switch module 170 turns off according to the delay signal to provide delay time for the external device to be converted from the OTG module to the charging module; when the delay time reaches a preset time, the switch module 170 is turned on, so that a path is formed, and the external device receives a power supply signal to perform a charging operation.
Referring to fig. 4, in some embodiments, the detection module includes: a sensing unit 141, a first resistor R1, and a second resistor R2. The first port of the detection unit 141 and the second port of the detection unit 141 are respectively connected to the first connection module. One end of the first resistor R1 is connected to the first port of the detection unit 141, and the other end of the first resistor R1 is connected to the second connection module. One end of the second resistor R2 is connected to the second port of the detecting unit 141, and the other end of the second resistor R2 is connected to the second connecting module. Specifically, the first port of the detection unit 141 is a 2A port, and the second port of the detection unit 141 is a 1A port. When the second connection module receives a power supply signal (+5V _ VUSB _ EXT), the first port and the second port of the detection unit 141 are in a high level state, and at this time, the secure passkey is in a power supply state, the external device obtains the working state of the secure passkey from the first connection module (USB _ CC2, USB _ CC1), and switches from the OTG mode to the charging mode, so as to avoid a voltage conflict between the working state of the secure passkey and the working state of the external device caused by correspondence; when the second connection module receives no power supply signal, the first port and the second port of the detection unit 141 are respectively short-circuited to ground, at this time, the security code key is in an OTG mode, and the external device provides a charging signal for the security code key and performs data transmission with the security module 130.
Referring to fig. 5, the control module includes: and a control unit 151. A first port of the control unit 151 is connected to the second connection module, a second port of the control unit 151 is connected to the security module, a third port of the control unit 151 is connected to the security module, a fourth port of the control unit 151 is connected to the second connection module, a fifth port of the control unit 151 is connected to the second connection module, a sixth port of the control unit 151 is connected to the first connection module, a seventh port of the control unit 151 is grounded, and an eighth port of the control unit 151 is connected to the first connection module. Specifically, the model of the control unit 151 is SGM722YWQ10/TR, the first port of the control unit 151 is an SEL terminal, the second port of the control unit 151 is an HSD1+ terminal, the third port of the control unit 151 is an HSD 1-terminal, the fourth port of the control unit 151 is an HSD2+ terminal, the fifth port of the control unit 151 is an HSD 2-terminal, the sixth port of the control unit 151 is a D + terminal, the seventh port of the control unit 151 is a GND terminal, and the eighth port of the control unit 151 is a D-terminal. When the first port of the control unit 151 receives no power supply signal (+5V _ VUSB _ EXT), the security password key and the external device are both in the OTG mode, at this time, the second port and the third port of the control unit 151 are respectively connected with the security module (USB _ DP _ a5, USB _ DM _ a5), and the external device (USB _ DP, USB _ DM) performs data transmission with the security module through the sixth port and the eighth port of the control unit 151; when the first port of the control unit 151 receives the power supply signal (+5V _ VUSB _ EXT), the fourth port and the fifth port of the control unit 151 are connected to the second connection modules (USB _ DP _ EXT, USB _ DM _ EXT), respectively, so that the external device receives the power supply signal to enter the charging mode. It is understood that other elements included in the control module and the specific connection between the elements can be seen in fig. 5.
Referring to fig. 6 and 7, in some embodiments, the delay module includes: the delay unit 161, the switch module includes: and a switching unit 171. A first port of the switching unit 171 is connected to a first port of the delay unit 161. Specifically, the model of the delay unit 161 is SGM89_ UTDFN, and the model of the switch unit 171 is SY6818 PLC. The first port of the switch unit 171 is an EN port, and the first port of the delay unit 161 is an OUT port. When the delay unit 161 receives a power supply signal (+5V _ VUSB _ EXT), the first port of the delay unit 161 sends a signal to the first port of the switch unit 171 to activate the switch unit 171 to enable and provide the external device with a delay time for switching from the OTG mode to the charging mode. It is understood that the other components included in the delay module and the switch module and the specific connection between the components can be seen in fig. 6 and 7, respectively.
Referring to fig. 8 and 9, in some embodiments, the secure passkey further comprises: a conversion module 180. The first port of the conversion module 180 is connected to the first connection module 110, and the second port of the conversion module 180 is connected to the security module 130, for performing a voltage conversion operation on the charging signal. Specifically, the conversion module 180 includes a voltage converter with model number RP114K331D-TR, and the conversion module is connected to the VCCQ terminal and the OTR _ VBUS terminal of the security module 130 through the VOUT terminal and the VDD terminal, respectively. The first port of the conversion module 180 is a VDD port, the second port of the conversion module 180 is a VOUT port, and the conversion module 180 converts the charging signal (+5V _ VUSB) received by the first connection module into a normal operating voltage (+3.3V _ VDD) of the security module 130.
Referring to fig. 10, an embodiment of the present application provides a secure passkey system. The secure passkey system includes: the security key 100, the smart terminal 200 and the power supply device 300 as described in any of the above embodiments. The intelligent terminal 200 is connected to the first connection module, and is configured to provide a charging signal. The power supply device 300 is connected to the second connection module for providing a power supply signal. Specifically, the smart terminal 200 includes a mobile terminal such as a smart phone, and the security module of the security key 100 is configured to perform data transmission with the smart terminal 200, and improve security protection for the operation of the smart terminal 200. The smart terminal 200 is connected to the security key 100 through the first connection module to provide a charging signal to the security key 100, thereby reducing the product volume of the security key 100. The power supply device 300 is connected with the security code key 100 through the second connection module, so that the security code key 100 serves as a signal transmission channel to provide a power supply signal for the smart terminal 200, thereby expanding the use function of the security code key 100.
Referring to fig. 11, in some embodiments, the first connection module includes: the Type-C unit, the Type-C unit is connected with intelligent terminal. Specifically, the Type-C unit is male and can be inserted into a Type-C slot of the intelligent terminal. The Type-C cell includes sixteen port pins a1, a 4-a 9, B1, B4-B9. The sixteen port pins include a ground port, power ports such as +5V _ VUSB, USB _ CC1, USB _ DP, USB _ DM, +5V _ VUSB, and data transmission ports such as USB _ DP and USB _ DM. The first connection module is used for carrying out data transmission with the intelligent terminal or transmitting a power supply signal for the intelligent terminal.
Referring to fig. 12, in some embodiments, the second connection module includes: the charging unit 121 is magnetically attracted. The first port of the magnetic charging unit 121 is connected to the first port of the power supply device 300 and the second port of the power supply device 300, the second port of the magnetic charging unit 121 is connected to the third port of the power supply device 300, the third port of the magnetic charging unit 121 is connected to the fourth port of the power supply device 300 and the fifth port of the power supply device 300, and the fourth port of the magnetic charging unit 121 is connected to the sixth port and the seventh port of the power supply device 300. Specifically, the second connection module is magnetically connected to the power supply device 300 through the magnetic charging unit 121. The first port of the magnetic charging unit 121 is a U3 port, the second port of the magnetic charging unit 121 is a U4 port, the third port of the magnetic charging unit 121 is a U29 port, and the fourth port of the magnetic charging unit 121 is a U30 port. The first port of the power supply apparatus 300 is an a1 port, the second port of the power supply apparatus 300 is an a7 port, the third port of the power supply apparatus 300 is an a4 port, the fourth port of the power supply apparatus 300 is an a2 port, the fifth port of the power supply apparatus 300 is an a6 port, the sixth port of the power supply apparatus 300 is an A3 port, and the seventh port of the power supply apparatus 300 is an a5 port. Four ports through magnetism charging unit 121 are connected with seven ports of power supply unit 300, make magnetism inhale the charging wire and can carry out positive and negative charging contact, have promoted user experience to a certain extent.
In a specific embodiment, the default state of the smart terminal is a charging mode, the security password key is connected with the Type-C slot of the smart terminal through the first connection module, and the security password key is connected with the power supply device through the second connection module. When the power supply equipment does not have the power supply signal to provide, intelligent terminal and security password key all are in the OTG mode, and intelligent terminal provides working power supply (signal of charging) for the security password key this moment to realize intelligent terminal and security module's data transmission. When the power supply equipment provides a power supply signal, the safety password key is converted into the charging module from the OTG mode through the control module, the intelligent terminal is converted into the charging mode from the OTG mode through the detection module, and the mode conversion delay time is obtained through the delay module and the switch module. The safety password key forms a conducting loop so that a power supply signal provided by the power supply equipment charges the intelligent terminal through the safety password key.
The security password key and the security password key system provided by the embodiment of the application realize the conversion between the OTG mode and the charging mode through the control module and the detection module, so that the security password key can be connected with the intelligent terminal through the first connection module, and the charging signal provided by the intelligent terminal is acquired, so that the product volume of the security password key and the charging mode is reduced; and a power supply signal provided by the power supply equipment can be acquired through the second connecting module so as to realize the charging operation of the intelligent terminal. And when the intelligent terminal is charged, the mode conversion delay time is provided for the intelligent terminal through the switch module and the delay module, so that the damage of the intelligent terminal caused by the collision of the charging signal of the intelligent terminal and the power supply signal provided by the power supply equipment is avoided.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Claims (9)
1. A secure passkey, comprising:
the first connecting module is used for receiving a charging signal;
the second connection module is used for receiving a power supply signal;
the safety module is connected with the first connecting module;
the detection module is respectively connected with the first connection module and the second connection module and is used for detecting the power supply signal;
and the control module is respectively connected with the safety module and the second connecting module and used for receiving the power supply signal and controlling the working state of the safety password key according to the power supply signal.
2. The secure passkey of claim 1, further comprising:
the delay module is connected with the second connection module and used for receiving the power supply signal and generating a delay signal according to the power supply signal;
and the switch module is respectively connected with the delay module and the safety module, and is used for receiving the delay signal and switching on or off according to the delay signal.
3. The secure passkey of claim 2, wherein the detection module comprises:
the first port of the detection unit and the second port of the detection unit are respectively connected with the first connection module;
one end of the first resistor is connected with the first port of the detection unit, and the other end of the first resistor is connected with the second connection module;
and one end of the second resistor is connected with the second port of the detection unit, and the other end of the second resistor is connected with the second connection module.
4. The secure passkey of claim 2, wherein the control module comprises:
the control unit, the first port of control unit with the second connection module is connected, the second port of control unit with the safety module is connected, the third port of control unit with the safety module is connected, the fourth port of control unit with the second connection module is connected, the fifth port of control unit with the second connection module is connected, the sixth port of control unit with the first connection module is connected, the seventh port of control unit ground connection, the eighth port of control unit with the first connection module is connected.
5. The secure passkey of claim 2, wherein the delay module comprises: a delay unit;
the switch module includes: and the first port of the switch unit is connected with the first port of the delay unit.
6. The secure passkey of any one of claims 2 to 5, further comprising:
and a first port of the conversion module is connected with the first connection module, and a second port of the conversion module is connected with the safety module and is used for performing voltage conversion operation on the charging signal.
7. A secure passkey system, comprising:
the secure passkey of any one of claims 1 to 6;
the intelligent terminal is connected with the first connecting module and used for providing a charging signal;
and the power supply equipment is connected with the second connecting module and is used for providing a power supply signal.
8. The secure passkey system of claim 7, wherein the first connection module comprises:
the Type-C unit, the Type-C unit with intelligent terminal connects.
9. The secure passkey system of claim 8, wherein the second connection module comprises:
the magnetic charging unit comprises a magnetic charging unit body, a first port of the magnetic charging unit body is connected with a first port of power supply equipment and a second port of the power supply equipment respectively, the second port of the magnetic charging unit body is connected with a third port of the power supply equipment respectively, the third port of the magnetic charging unit body is connected with a fourth port of the power supply equipment and a fifth port of the power supply equipment respectively, and the fourth port of the magnetic charging unit body is connected with a sixth port and a seventh port of the power supply equipment respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022964666.2U CN214900898U (en) | 2020-12-11 | 2020-12-11 | Safety password key and safety password key system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022964666.2U CN214900898U (en) | 2020-12-11 | 2020-12-11 | Safety password key and safety password key system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214900898U true CN214900898U (en) | 2021-11-26 |
Family
ID=78904129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022964666.2U Active CN214900898U (en) | 2020-12-11 | 2020-12-11 | Safety password key and safety password key system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214900898U (en) |
-
2020
- 2020-12-11 CN CN202022964666.2U patent/CN214900898U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9651593B2 (en) | Charging systems with direct charging port support and extended capabilities | |
| US10114401B2 (en) | System and method for a serial bus interface | |
| US8296565B2 (en) | Communication protocol for device authentication | |
| US8242742B2 (en) | Chargers, systems and methods for detecting a power source | |
| CN104007801B (en) | For providing the method and apparatus of power to electronic equipment | |
| CN108988431B (en) | Multi-protocol charging device and multi-protocol charging method | |
| CN105226742A (en) | Wireless charging device, system and method | |
| US8301888B2 (en) | System and method for generating secured authentication image files for use in device authentication | |
| CN104796011A (en) | Charging method, AC adapter, charging managing device and terminal | |
| CN104396222A (en) | Method and apparatus for operating accessory interface functions over a single signal | |
| US20070075680A1 (en) | Charging mode control circuit | |
| CN104272216A (en) | Electronic device and control method therefor | |
| CN210074082U (en) | Battery equipment | |
| CN103730933A (en) | Charging method and electronic devices | |
| CN110247264B (en) | Connector and method for controlling charging by using connector | |
| CN116742740B (en) | Charging device and electronic equipment | |
| CN105162213A (en) | USB controller, and device | |
| CN214900898U (en) | Safety password key and safety password key system | |
| CN201075214Y (en) | USB general-purpose data line | |
| CN105098766A (en) | Power delivery controller | |
| CN209343329U (en) | It is a kind of to identify adaptive usb circuit with serial communication and fast charge | |
| CN106948669A (en) | A kind of chargeable intelligent door lock and its charging method | |
| CN212849953U (en) | USB quick charging circuit | |
| US9721085B1 (en) | Method and battery pack device with antenna and diode | |
| CN212255616U (en) | Charging detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |