CN216873301U - Interface circuit, intelligent glasses and control system - Google Patents
Interface circuit, intelligent glasses and control system Download PDFInfo
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- CN216873301U CN216873301U CN202123124531.6U CN202123124531U CN216873301U CN 216873301 U CN216873301 U CN 216873301U CN 202123124531 U CN202123124531 U CN 202123124531U CN 216873301 U CN216873301 U CN 216873301U
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Abstract
The application provides an interface circuit, intelligent glasses and a control system. The interface circuit comprises a controller, a first TYPEC interface and a signal conversion module; the first TYPEC interface is connected with an upper computer; the signal conversion module is connected between the first TYPEC interface and the display device, and a first controlled end of the signal conversion module is connected to a signal output end of the controller; the power supply management circuit also comprises a switch switching module, a power supply management chip and a format conversion circuit; the switch switching module is connected between the first TYPEC interface and the signal conversion module, and is provided with a second controlled end which is connected with the signal output end of the controller; the power management chip is connected between the first TYPEC interface and the signal input end of the controller; the format conversion circuit is connected between the first TYPEC interface and the switch switching module. The interface circuit can receive the video signal of the multiple formats of host computer transmission through the TYPEC interface, transmit to display device and show for the compatibility of intelligent glasses is stronger, convenient to use.
Description
Technical Field
The utility model relates to the field of intelligent glasses, in particular to an interface circuit, intelligent glasses and a control system.
Background
In the application scene of intelligent glasses, all be provided with TYPE PEC (USBType-C) interface on the intelligent glasses usually, the transmission that realizes data is connected through TYPE PEC interface and host computer such as smart mobile phone or intelligent computer to the treater of intelligent glasses, and the video signal of host computer transmission is received through TYPE PEC interface to intelligent glasses show through two display screens of intelligent glasses. However, the original interface circuit on the smart glasses can only receive video signals in a DP (Display Port) format, and cannot receive video signals in other formats.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the related art, embodiments of the present invention provide an interface circuit, smart glasses, and a control system, where the interface circuit can receive video signals of multiple formats transmitted by an upper computer through a TYPEC interface, and transmit the video signals to a display device for display, so that the smart glasses have high compatibility and are convenient to use.
According to a first aspect of embodiments of the present invention, there is provided an interface circuit comprising a controller, a first TYPEC interface, and a signal conversion module; the controller has a signal input and a signal output; the first TYPEC interface is connected with a second TYPEC interface of the upper computer; the signal conversion module is connected between the first TYPEC interface and the display device, a first controlled end of the signal conversion module is connected to a signal output end of the controller, and a video input end of the signal conversion module is connected to the first TYPEC interface;
the power supply management chip, the switch switching module and the format conversion circuit are also included;
the power management chip is connected between the first TYPEC interface and the signal input end of the controller, and is used for detecting the format of a video signal received by the first TYPEC interface, generating a format detection signal and transmitting the format detection signal to the controller;
the switch switching module is connected between the first TYPEC interface and the signal conversion module, and is provided with a second controlled end which is connected with the signal output end of the controller and used for receiving a switch switching signal output by the controller; the format conversion circuit is connected between the first TYPEC interface and the switch switching module and is used for converting the USB video signals received by the first TYPEC interface into HDMI video signals;
when the video signal received by the first TYPEC interface is in a DP format, the power management chip generates a first format detection signal and sends the first format detection signal to the controller, the controller receives the first format detection signal, generates a DP channel opening signal and sends the DP channel opening signal to the switch switching module, the switch switching module opens a DP channel after receiving the DP channel opening signal, receives the DP video signal transmitted by the first TYPEC interface, and forwards the DP video signal to the signal conversion module through the DP channel;
when the video signal received by the first TYPEC interface is in a USB format, the power management chip generates a second format detection signal and sends the second format detection signal to the controller, the controller receives the second format detection signal, generates an HDMI channel opening signal and sends the HDMI channel opening signal to the switch switching module, the switch switching module opens the HDMI channel after receiving the HDMI channel opening signal, receives the HDMI video signal output by the format conversion circuit, and forwards the HDMI video signal to the signal conversion module through the HDMI channel;
the signal conversion module receives DP video signals or HDMI video signals, converts the signals into display signals which can be identified by the display device and sends the display signals to the display device. According to a second aspect of embodiments of the present invention, there is provided smart glasses, comprising the interface circuit and the display device as described in any one of the above embodiments; the controller is connected to an upper computer through the first TYPEC interface, and the display device is connected to the rear end of the signal conversion module.
According to a third aspect of the embodiments of the present invention, there is provided an intelligent glasses control system, including an upper computer and the intelligent glasses according to the above embodiments; the intelligent glasses are connected with a second TYPEC interface of the upper computer through a first TYPEC interface.
By applying the technical scheme of the embodiment of the utility model, the switch switching module is arranged on the interface circuit, the switch switching module is connected with the DP video signal transmission interface of the TYPEC interface, the switch switching module is connected with the USB data signal transmission interface of the TYPEC interface through the format conversion circuit, and the DP control chip is used for detecting whether the signal received by the TYPEC is the DP video signal or not, and if the signal is the DP video signal, the switch switching module is controlled by the controller to be conducted to the corresponding DP video signal transmission channel; if the signal received by the detection TYPEC is not the DP video signal, the switch switching module is controlled by the controller to be conducted to the corresponding video signal transmission channel. According to the technical scheme, the interface circuit can receive video signals in various formats transmitted by the upper computer through the TYPEC interface and transmit the video signals to the display device for display, so that the intelligent glasses are high in compatibility and convenient to use.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model, as claimed.
For a better understanding and practice, the utility model is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic block diagram of an intelligent glasses control system according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of an interface circuit according to an embodiment of the present invention;
fig. 3 is a pin definition diagram of the TYPEC interface according to the embodiment of the present invention;
FIG. 4 is a schematic block diagram of a switch switching module according to an embodiment of the present invention;
fig. 5 is a schematic block diagram of smart glasses according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the utility model, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. The word "if/if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
The original interface circuit on the intelligent glasses can only receive the video signal of DP format, can't receive the video signal of other formats, and when the host computer can't output the video signal of DP format, the intelligent glasses just can't receive the video signal of host computer transmission, can't match the use, and compatibility is relatively poor.
In order to solve the above problems, embodiments of the present invention provide an interface circuit, smart glasses, and a control system, which can receive video signals of multiple formats transmitted by an upper computer through a TYPEC interface, and transmit the video signals to a display device for display, so that the smart glasses have strong compatibility and are convenient to use, and user experience is improved.
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Referring to fig. 1, fig. 1 is a schematic block diagram of an intelligent glasses control system according to an embodiment of the present invention.
The application environment of the interface circuit in this embodiment is an intelligent glasses control system, the intelligent glasses control system includes intelligent glasses 100, data transmission line 200 and host computer 300, and intelligent glasses 100 passes through data transmission line 200 is connected to host computer 300 to realize the data communication interaction between intelligent glasses 100 and the host computer 300, if intelligent glasses 100 need receive the control signal or the video signal of host computer 300, and intelligent glasses 100 need upload some data to host computer 300, be convenient for host computer 300 to participate in the relevant control of intelligent glasses and handle. The upper computer 300 can be a desktop computer, an interactive tablet, or an intelligent device such as a smart phone.
In order to solve the related technical problems in the prior art, in this embodiment, the interface circuit of the smart glasses 100 is improved, so that the interface circuit can receive the video signals of multiple formats transmitted by the upper computer and transmit the video signals to the display device for display, so that the smart glasses have high compatibility and convenient use, and the user experience is improved.
According to a first aspect of the present invention, an interface circuit 10 is provided, please refer to fig. 2, and fig. 2 is a schematic block diagram of the interface circuit according to the embodiment of the present invention.
The interface circuit 10 comprises a controller 11, a first TYPEC interface 12 and a signal conversion module 13; the controller 11 is used as a main control device of the intelligent glasses to manage and control other functional modules, the controller 11 is provided with a signal input end and a signal output end, the signal input end is used for receiving format detection signals transmitted by the power management chip, and the signal output end is used for outputting channel switching signals to the switch switching module.
The first TYPEC interface 12 is used for interfacing with a second TYPEC of the upper computer 300, so that information interaction between the smart glasses 100 and the upper computer 300 is realized. The signal conversion module 13 is connected between the first TYPEC interface 12 and the display device 20, a first controlled end of the signal conversion module 13 is connected to a signal output end of the controller 11, a video input end of the signal conversion module 13 is connected to the first TYPEC interface 12, receives a video signal transmitted by the first TYPEC interface 12, converts the video signal into a display signal which can be recognized by the display device 20, and sends the display signal to the display device 20, namely, the signal conversion module 13 converts the received video signal into the display signal which can be matched with the display of the display device 20 under the control of the controller 11.
The interface circuit 10 comprises a switch switching module 14, a power management chip 15 and a format conversion circuit 16; the switch switching module 14 is connected between the first TYPEC Interface 12 and the signal conversion module 13, the switch switching module 14 has a second controlled end, the second controlled end is connected to a signal output end of the controller 11, and the switch switching module 14 performs switch switching under the control of the controller 11, so as to output video signals of different formats for a back-end circuit, and specifically, may output video signals of DP format, HDMI (High Definition Multimedia Interface, HDMI, High Definition Multimedia Interface) format, or other formats, so that the compatibility of the smart glasses is relatively strong.
The Power management chip 15 is a PD (Power Delivery protocol) management chip 15, and the PD management chip 15 is connected between the first TYPEC interface 12 and the signal input terminal of the controller 11, and the Power management chip 15 is configured to detect a format of the video signal received by the first TYPEC interface 12, and generate a format detection signal to be transmitted to the controller 11. In this embodiment, the power management chip 15 is connected between the first TYPEC interface 12 and the signal input terminal of the controller 11, and is configured to detect a CC pin of the first TYPEC interface 12 to obtain a format detection signal. The format detection signal may be a DP format detection signal, an HDMI format detection signal, or another format detection signal.
The switch switching module 14 is connected between the first TYPEC interface 12 and the signal conversion module 13, the switch switching module 14 has a second controlled end, and the second controlled end is connected with the signal output end of the controller 11, and is used for receiving the switch switching signal output by the controller 11.
The format conversion circuit 16 is connected between the first TYPEC interface 12 and the switch switching module 14, and is configured to convert a USB video signal received by the first TYPEC interface 12 into an HDMI video signal;
when the video signal received by the first TYPEC interface 12 is in a DP format, the power management chip 15 generates a first format detection signal and sends the first format detection signal to the controller 11, the controller 11 receives the first format detection signal, generates a DP channel opening signal and sends the DP channel opening signal to the switch switching module 14, the switch switching module 14 receives the DP channel opening signal and then opens the DP channel, and receives the DP video signal transmitted by the first TYPEC interface 12 and forwards the DP video signal to the signal conversion module 13.
When the video signal received by the first TYPEC interface 12 is in a USB format, the power management chip 15 generates a second format detection signal to send to the controller 11, the controller 11 receives the second format detection signal, generates an HDMI channel opening signal to send to the switch switching module 14, the switch switching module 14 receives the HDMI channel opening signal and then opens the HDMI channel, and receives the HDMI video signal output by the format conversion circuit 16 and forwards the HDMI video signal to the signal conversion module 13.
The signal conversion module 13 receives a DP video signal or an HDMI video signal, converts the DP video signal or the HDMI video signal into a display signal that can be recognized by the display device 20, and transmits the display signal to the display device 20.
In this embodiment, the interface circuit 10 is provided with a switch switching module 14, the switch switching module 14 is connected to the DP video signal transmission interface of the first TYPEC interface 12, the switch switching module 14 is connected to the USB data signal transmission interface of the first TYPEC interface 12 through a format conversion circuit, and the DP control chip 15 detects whether the signal received by the first TYPEC interface 12 is a DP video signal. If the signal received by the first TYPEC interface 12 is a DP video signal, the controller 11 controls the switch switching module 14 to be conducted to a corresponding DP video signal transmission channel; if the signal received by the first TYPEC interface 12 is not a DP video signal, the controller 11 controls the switch switching module 14 to conduct to the corresponding video signal transmission channel. This interface circuit can receive the video signal of the multiple format of host computer transmission through first TYPEC interface, transmits to display device and shows for the compatibility of intelligent glasses is stronger, and convenient to use has promoted user experience.
Wherein, first TYPEC interface 12 is the USB Type-C interface, can be the public seat of USB Type-C or the female seat of USB Type-C. The first TYPEC interface 12 is used to connect with the second TYPEC interface of the upper computer 300, so as to implement control data transmission, video signal transmission and other interactions between the controller of the smart glasses 100 and the upper computer 300.
In this embodiment, the TYPEC interface, i.e. USB Type-C, is a completely new USB interface, and since the interfaces are symmetrical, the plugging and unplugging and cable direction are both positive and negative, and the interfaces support both USB data transmission and dp (display port) data transmission. In addition, the method has the following characteristics: the interface is thin, so that the thinner and lighter equipment can be supported, and the design of the portable equipment can be thinner and smaller; the transmission of more power can be supported, the maximum power can reach 100 watts, and more high-power load equipment can be supported; single-port and double-port TYPEC are supported, and the application is flexible; and bidirectional power transmission, power transmission and power receiving are supported.
Please refer to fig. 3, which is a diagram illustrating a pin definition of the TYPEC interface according to an embodiment of the present invention.
The TYPEC interface has 4 pairs of TX/RX differential lines, 2 pairs of USB D +/D-, a pair of SBUs, 2 CCs, 4 VBUS and 4 ground lines. In this embodiment, 4 pairs of TX/RX differential lines are used for DP format video signal transmission, and 2 pairs of USB D +/D-lines are used for USB video signal transmission, so as to convert USB video signals into HDMI format video signals.
The switch switching module 14 has a first video signal input terminal, a second video signal input terminal and a video signal output terminal; wherein the first video signal input terminal is connected to a DP video signal transmission interface (4 pairs of TX/RX differential lines) of the first TYPEC interface 12 for accessing DP as a video signal; the second video signal input end is connected with the USB data transmission interface (2 pairs of USB D +/D-) of the first TYPEC interface 12 through the format conversion circuit 16, and a user accesses video signals in other formats, such as HDMI video signals; the video signal output end is connected to the conversion signal input end of the signal conversion module 13, and transmits the received DP format video signal or other format video signals to the signal conversion module 13, so that the video signal is converted into a display signal in an MIPI (Mobile Industry Processor Interface) format by the signal conversion module 13 and is output to a display device. Wherein, the DP video signal transmission interface is a differential data interface (4 pairs of TX/RX differential lines) of the first TYPEC interface 12.
Referring to fig. 4, fig. 4 is a schematic block diagram of a switching module according to an embodiment of the utility model.
The switch switching module comprises a switch switching chip 14, a switch element, a first video signal input end, a second video signal input end and a video signal output end are integrated in the switch switching chip 14, the first video signal input end is used for inputting DP video signals, the second video signal input end is used for inputting HDMI video signals or video signals in other formats, the video signal output end is used for outputting DP video signals or HDMI video signals, the switch element can receive control signals of the controller to select channels, and the video signal output end is connected with the first video signal input end or the second video signal input end.
In an optional embodiment, the detection terminal of the power management chip 15 is connected to the detection interface (CC interface, i.e. CC1 or CC2 pin) of the first TYPEC interface 12, and the detection signal output terminal of the power management chip 15 is connected to the signal input terminal of the controller 11 for inputting the detection signal, where the power management chip 15 is a PD protocol chip and is configured to detect whether the video signal transmitted by the first TYPEC interface is a DP signal, so as to facilitate switching of the on/off switching chip.
In an optional embodiment, the format conversion circuit 16 is an HDMI conversion circuit 16, and the HDMI conversion circuit 16 includes a USB expansion interface 161 and an HDMI conversion chip 162; the third controlled end of the USB expansion interface 161 is connected to the signal input end of the controller 11, and when the video signal received by the first TYPEC interface 12 is a USB signal, the USB expansion interface 161 informs the controller 11, so that the controller 11 controls the switch to switch the chip switching channel.
HDMI changes chip 162 passes through USB expansion interface 161 is connected to the USB data transmission interface (2 to USB D +/D-) of first TYPEC interface 12 receives the USB video data signal of first TYPEC interface 12 transmission to convert to HDMI video signal, output extremely switch module 14's second video signal input, thereby realize the transmission of HDMI video signal. In this embodiment, the USB expansion interface 161 has a first USB input terminal, a first USB output terminal and a second USB output terminal, the first USB input terminal is connected to the USB data transmission interface of the first TYPEC interface 12, and the first USB output terminal is connected to the signal input terminal of the controller 11, and is configured to transmit a USB control signal or a microphone signal to the controller 11; the second USB output end is connected to the conversion signal input end of the HDMI conversion chip 162, and inputs the video signal transmitted through the USB, so that the HDMI conversion chip 162 can convert the video signal into a video signal in the HDMI format.
In an alternative embodiment, the video input terminal of the signal conversion module 13 receives the video signal transmitted by the first TYPEC interface, converts the video signal into a display signal that can be recognized by the display device 20, and transmits the display signal to the display device 20. The signal conversion module 13 includes an MIPI format conversion chip, and the MIPI format conversion chip receives a DP video signal or a video signal of another format output by the video signal output terminal of the switch switching module 14, converts the DP video signal or the video signal of another format into an MIPI video signal, and transmits the MIPI video signal to the display device 20.
In an alternative embodiment, in order to provide the respective portions of the interface circuit 10 with the corresponding dc power, the interface circuit further includes a dc power module having a dc input terminal and a dc output terminal; the dc input end is connected to a power conversion module to obtain a dc power, and the dc output end is connected to the controller 11, the format conversion circuit 16, and the signal conversion module 13, respectively, to provide a dc power with a corresponding voltage.
Specifically, the dc power supply module provides a 3.3V or 1.8V dc power supply for the controller 11, provides a 3.3V, 1V, 2V, or 1.8V dc power supply for the HDMI converting circuit 16, and provides a 0.9V, 1.8V, or 3.3V dc power supply for the signal converting module 13.
By applying the technical scheme of the embodiment of the utility model, the switch switching module is arranged on the interface circuit, the switch switching module is connected with the DP video signal transmission interface of the TYPEC interface, the switch switching module is connected with the USB data signal transmission interface of the TYPEC interface through the format conversion circuit, and the DP control chip is used for detecting whether the signal received by the TYPEC is the DP video signal or not, and if the signal is the DP video signal, the switch switching module is controlled by the controller to be conducted to the corresponding DP video signal transmission channel; if the signal received by the detection TYPEC is not the DP video signal, the switch switching module is controlled by the controller to be conducted to the corresponding video signal transmission channel. According to the technical scheme, the interface circuit can receive video signals in various formats transmitted by the upper computer through the TYPEC interface and transmit the video signals to the display device for display, so that the intelligent glasses are high in compatibility and convenient to use.
According to a second aspect of the embodiments of the present invention, there is provided a pair of smart glasses 100, as shown in fig. 5, including the interface circuit 10, the display device 20 and the power supply module 30 as described in the above embodiments; the controller 11 of the interface circuit 10 is connected to the upper computer 300 through the first TYPEC interface 12, and the display device 20 is connected to the rear end of the signal conversion module 13, and includes a left display screen and a right display screen for displaying corresponding display signals, so as to provide an immersive 3D visual effect for the user.
The power module 30 provides a corresponding dc power to the interface circuit 10 and the display device 20.
In an alternative embodiment, the smart glasses are AR glasses, or VR glasses, or other smart glasses.
According to a third aspect of embodiments of the present invention, there is provided a smart eyewear control system.
As shown in fig. 1, the smart glasses control system includes an upper computer 300 and the smart glasses 100 according to any one of the above embodiments; each part of intelligent glasses 100 passes through interface circuit 10 and is connected with host computer 300 realization, promptly intelligent glasses through first TYPEC interface with the second TYPEC interface connection of host computer, and then realize intelligent glasses's relevant demonstration and control.
The upper computer 300 can be a desktop computer, an interactive tablet, or an intelligent device such as a smart phone.
The upper computer 300 comprises an upper computer processor 301 and a second TYPEC interface 302 electrically connected to each other, the second TYPEC interface 302 may be a TYPEC male socket or a TYPEC female socket.
The first TYPEC interface and the second TYPEC interface are connected through a data transmission line, and the data transmission line 200 comprises a TYPEC data line.
By applying the technical scheme of the embodiment of the utility model, the switch switching module is arranged on the interface circuit, the switch switching module is connected with the DP video signal transmission interface of the first TYPEC interface, the switch switching module is connected with the USB data signal transmission interface of the first TYPEC interface through the HDMI conversion circuit, whether the signal received by the TYPEC is the DP video signal or not is detected through the DP control chip, and if the signal is the DP video signal, the switch switching module is controlled by the controller to be conducted to the corresponding DP video signal transmission channel; if the signal received by the detection TYPEC is not the DP video signal, the switch switching module is controlled by the controller to be conducted to the corresponding video signal transmission channel.
According to the technical scheme, the interface circuit can receive the video signals in various formats transmitted by the upper computer through the first TYPEC interface and transmit the video signals to the display device for display, so that the intelligent glasses are high in compatibility and convenient to use, and user experience is improved.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. An interface circuit comprising a controller, a first TYPEC interface, and a signal conversion module; the controller has a signal input and a signal output; the first TYPEC interface is used for being connected with a second TYPEC interface of the upper computer; the signal conversion module is connected between the first TYPEC interface and the display device, a first controlled end of the signal conversion module is connected to a signal output end of the controller, and a video input end of the signal conversion module is connected to the first TYPEC interface; it is characterized in that the preparation method is characterized in that,
the power supply management chip, the switch switching module and the format conversion circuit are also included;
the power management chip is connected between the first TYPEC interface and the signal input end of the controller, and is used for detecting the format of a video signal received by the first TYPEC interface, generating a format detection signal and transmitting the format detection signal to the controller;
the switch switching module is connected between the first TYPEC interface and the signal conversion module, and is provided with a second controlled end which is connected with the signal output end of the controller and used for receiving a switch switching signal output by the controller; the format conversion circuit is connected between the first TYPEC interface and the switch switching module and is used for converting the USB video signal received by the first TYPEC interface into an HDMI video signal;
when the video signal received by the first TYPEC interface is in a DP format, the power management chip generates a first format detection signal and sends the first format detection signal to the controller, the controller receives the first format detection signal, generates a DP channel opening signal and sends the DP channel opening signal to the switch switching module, the switch switching module opens a DP channel after receiving the DP channel opening signal, receives the DP video signal transmitted by the first TYPEC interface, and forwards the DP video signal to the signal conversion module through the DP channel;
when the video signal received by the first TYPEC interface is in a USB format, the power management chip generates a second format detection signal and sends the second format detection signal to the controller, the controller receives the second format detection signal, generates an HDMI channel opening signal and sends the HDMI channel opening signal to the switch switching module, the switch switching module opens the HDMI channel after receiving the HDMI channel opening signal, receives the HDMI video signal output by the format conversion circuit, and forwards the HDMI video signal to the signal conversion module through the HDMI channel;
the signal conversion module receives DP video signals or HDMI video signals, converts the DP video signals or the HDMI video signals into display signals which can be identified by the display device, and sends the display signals to the display device.
2. The interface circuit of claim 1, wherein the switching module has a first video signal input, a second video signal input, and a video signal output;
the first video signal input end is connected with a DP video signal transmission interface of the first TYPEC interface, the second video signal input end is connected with a USB data transmission interface of the first TYPEC interface through the format conversion circuit, and the video signal output end is connected with a conversion signal input end of the signal conversion module.
3. The interface circuit of claim 2, wherein said DP video signaling interface is a differential data interface of said first TYPEC interface.
4. The interface circuit according to claim 2, wherein the format conversion circuit comprises a USB expansion interface and an HDMI conversion chip; the HDMI conversion chip is connected to the USB data transmission interface of first TYPEC interface through USB expansion interface, receives the USB video data signal of first TYPEC interface transmission converts the HDMI video signal into, exports to switch module's second video signal input.
5. The interface circuit of claim 1, wherein a sense terminal of the power management chip is coupled to the sense interface of the first TYPEC interface, and a sense signal output terminal of the power management chip is coupled to a signal input terminal of the controller.
6. The interface circuit of claim 1, wherein the signal conversion module includes a MIPI format conversion chip, and the MIPI format conversion chip receives the video signal output by the switch switching module and converts the video signal into a MIPI video signal for transmission to a display device.
7. The interface circuit of claim 1, further comprising a dc power module having a dc input and a dc output; the direct current input end is connected with the power supply conversion module, and the direct current output end is respectively connected with the controller, the format conversion circuit and the signal conversion module to provide a direct current power supply.
8. Smart eyewear comprising an interface circuit and a display device according to any one of claims 1 to 7;
the controller is connected to an upper computer through the first TYPEC interface, and the display device is connected to the rear end of the signal conversion module.
9. The smart glasses of claim 8, wherein the smart glasses are AR glasses or VR glasses.
10. An intelligent glasses control system, comprising an upper computer and the intelligent glasses according to any one of claims 8 to 9; the intelligent glasses are connected with a second TYPEC interface of the upper computer through a first TYPEC interface.
Priority Applications (1)
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| CN202123124531.6U CN216873301U (en) | 2021-12-07 | 2021-12-07 | Interface circuit, intelligent glasses and control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123124531.6U CN216873301U (en) | 2021-12-07 | 2021-12-07 | Interface circuit, intelligent glasses and control system |
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