Abstract: Disclosed are a display apparatus and a display method. The display apparatus includes a display; a remote controller, including multiple keys and configured to: output an infrared signal carrying a first infrared key value in response to selection of an integrated key from the user, the integrated key is configured for replacing at least two omitted keys not disposed on the remote controller, the omitted keys are keys not arranged on the remote controller; and a controller is configured to: identify an infrared key value of an infrared signal corresponding to the integrated key; control the display to display a key interface when the infrared key value being the first infrared key value; the key interface includes at least two first controls corresponding to the omitted keys; and generate a target infrared key value when a selection of one of the at least two first controls from the user.

Abstract: A fresh air equipment is provided. The fresh air equipment includes a casing and a first heat exchange system. An air supply channel is formed in the casing. The first heat exchange system includes a fresh air heat exchanger structure and a first switching device. The fresh air heat exchanger structure is located in the air supply channel, and the fresh air heat exchanger structure is provided with a refrigerant pipeline. The first switching device is communicated with the fresh air heat exchanger structure, and the first switching device is configured to switch the flow direction of a refrigerant in the fresh air heat exchanger structure. When the first heat exchange system is in different operation modes, refrigerants of the first heat exchange system pass through the refrigerant pipeline located downstream of the air supply channel and subsequently pass through the refrigerant pipeline located upstream of the air supply channel.

Abstract: An apparatus is disclosed for sharing a filter circuit between transmission and reception modes. In example aspects, the apparatus includes a wireless interface device. The wireless interface device includes a transmit chain, a receive chain, and a filter circuit. The transmit chain includes a first component and a second component. The receive chain includes a third component and a fourth component. The filter circuit includes an amplifier, and the amplifier includes a first stage and a second stage. The first stage includes a transmit portion coupled to the second stage and a receive portion coupled to the second stage. The transmit portion and the second stage are coupled together in series between the first component and the second component of the transmit chain. The receive portion and the second stage are coupled together in series between the third component and the fourth component of the receive chain.

Abstract: A transceiver circuit includes transmit circuitry comprising a transmit baseband filter and a driver amplifier having an output coupled to a power amplifier, receive circuitry comprising a low noise amplifier and a receive baseband filter, mixer circuitry and a magnetic circuit, wherein the mixer circuitry and the magnetic circuit are coupled between the transmit baseband filter and the driver amplifier, and are further coupled between the low noise amplifier and the receive baseband filter, wherein the mixer circuitry and the magnetic circuit are shared between the transmit circuitry and the receive circuitry in a time division duplexing (TDD) communication system.

Abstract: Disclosed is a pulse elimination circuit, a voltage detection circuit and a detection method, referring to a field of electronic circuit technology. The pulse elimination circuit comprises: a clock generation circuit configured to receive a logic signal and a first input signal and generate a clock signal according to the logic signal and the first input signal; a counter coupled with the clock generation circuit and configured to receive the clock signal and count a number of cycles of the clock signal to generate a second input signal; a signal output circuit coupled to the counter and configured to supply a first input signal to the clock generation circuit and generate a pulse elimination signal based on the second input signal. Therefore, in a process of voltage detection, this circuit can eliminate a false trigger caused by short pulse and improve voltage detection accuracy.

Abstract: Embodiments of this application disclose an optical network unit and a PoE power supply system. The optical network unit in embodiments of this application includes a conductive connection terminal, a switch module, a network transformer, a first voltage conversion module, and a network interface connector. The conductive connection terminal is configured to be connected to a power over Ethernet PoE power supply device, and the conductive connection terminal is connected to the network transformer.

Abstract: A network acceleration method, an electronic device, and a storage medium, which relate to the field of network communication technologies, so as to reduce freezing phenomena during video playback. The method includes: when an electronic device runs an application that does not include a peer-to-peer (P2P) flow, a data flow that requires high network quality may be switched to another network with better quality when quality of a currently used network is poor. When the electronic device runs an application that includes a P2P flow, and when a currently used network is poor, because it is difficult to switch the P2P flow to another network with better quality, all data flows of the electronic device may be switched to the another network, thereby reducing video freezing phenomena caused by a difficulty of switching the P2P flow to the another network with better quality.

Abstract: Disclosed is a content-based voice output method, including: displaying a user interface comprising at least one item and a selector for indicating that an item is selected; in response to a first instruction, causing the selector to move from a first item to a second item, and playing voice content corresponding to the second item; and in response to a second instruction, playing a first explanation voice related to the voice content.

Abstract: Disclosed are a display apparatus and a display method. The display apparatus includes a display; a remote controller, including multiple keys and configured to: output an infrared signal carrying a first infrared key value in response to selection of an integrated key from the user, the integrated key is configured for replacing at least two omitted keys not disposed on the remote controller, the omitted keys are keys not arranged on the remote controller; and a controller is configured to: identify an infrared key value of an infrared signal corresponding to the integrated key; control the display to display a key interface when the infrared key value being the first infrared key value; the key interface includes at least two first controls corresponding to the omitted keys; and generate a target infrared key value when a selection of one of the at least two first controls from the user.

Abstract: This application provides an automated parking method, apparatus, and system, and is related to the automated driving field. According to the solution provided in this application, an initial driving path and a bypass path can be planned for a vehicle. Therefore, the vehicle does not need to plan a driving path, and further, a large quantity of high-precision sensors do not need to be disposed in the vehicle, thereby effectively reducing costs of the vehicle. In addition, compared with that in a manner in which a vehicle plans a path while performing detection, in the solution provided in this application, a road traffic status in an entire parking domain can be determined, and further, a global initial driving path can be planned for the vehicle, thereby effectively improving path planning efficiency. In addition, a bypass path may be further planned and delivered in advance when an obstacle is detected.

Abstract: Disclosed is a pulse elimination circuit, a voltage detection circuit and a detection method, referring to a field of electronic circuit technology. The pulse elimination circuit comprises: a clock generation circuit configured to receive a logic signal and a first input signal and generate a clock signal according to the logic signal and the first input signal; a counter coupled with the clock generation circuit and configured to receive the clock signal and count a number of cycles of the clock signal to generate a second input signal; a signal output circuit coupled to the counter and configured to supply a first input signal to the clock generation circuit and generate a pulse elimination signal based on the second input signal. Therefore, in a process of voltage detection, this circuit can eliminate a false trigger caused by short pulse and improve voltage detection accuracy.

Abstract: A navigation method in the field of intelligent driving technologies includes obtaining images shot by a plurality of cameras; obtaining location information of a target vehicle based on the images shot by the plurality of cameras; after a target parking space for parking the target vehicle is determined, generating a navigation route based on the location information of the target vehicle and location information of the target parking space; and sending the navigation route to a terminal device such that a safety condition in the parking lot can be predicted to assist in safe driving of the target vehicle.

Abstract: This application provides example circuit modules and example electronic devices comprising the circuit module. One example circuit module includes a power input terminal, a power output terminal, a first switching transistor, a second switching transistor, a comparison unit, a boost unit, an energy storage unit, and a direct current conversion unit, where the first switching transistor is turned on and the second switching transistor is cut off when a source voltage input by the power input terminal to the comparison unit is greater than the preset threshold, or the first switching transistor is cut off and the second switching transistor is turned on when a source voltage input by the power input terminal to the comparison unit is less than or equal to the preset threshold.

Abstract: Embodiments of this application disclose an optical network unit and a PoE power supply system. The optical network unit in embodiments of this application includes a conductive connection terminal, a switch module, a network transformer, a first voltage conversion module, and a network interface connector. The conductive connection terminal is configured to be connected to a power over Ethernet PoE power supply device, and the conductive connection terminal is connected to the network transformer.

Abstract: A transceiver circuit includes transmit circuitry comprising a transmit baseband filter and a driver amplifier having an output coupled to a power amplifier, receive circuitry comprising a low noise amplifier and a receive baseband filter, mixer circuitry and a magnetic circuit, wherein the mixer circuitry and the magnetic circuit are coupled between the transmit baseband filter and the driver amplifier, and are further coupled between the low noise amplifier and the receive baseband filter, wherein the mixer circuitry and the magnetic circuit are shared between the transmit circuitry and the receive circuitry in a time division duplexing (TDD) communication system.

Abstract: This application provides example circuit modules and example electronic devices comprising the circuit module. One example circuit module includes a power input terminal, a power output terminal, a first switching transistor, a second switching transistor, a comparison unit, a boost unit, an energy storage unit, and a direct current conversion unit, where the first switching transistor is turned on and the second switching transistor is cut off when a source voltage input by the power input terminal to the comparison unit is greater than the preset threshold, or the first switching transistor is cut off and the second switching transistor is turned on when a source voltage input by the power input terminal to the comparison unit is less than or equal to the preset threshold.

Abstract: Disclosed is a content-based voice output method, including: displaying a user interface comprising at least one item and a selector for indicating that an item is selected; in response to a first instruction, causing the selector to move from a first item to a second item, and playing voice content corresponding to the second item; and in response to a second instruction, playing a first explanation voice related to the voice content.

Abstract: An aromatization catalyst and preparation process and use thereof is set forth. The catalyst comprises an inorganic oxide and a modified Ga-ZSM-5 zeolite, which comprises a modified ZSM-5 zeolite with a hierarchical macro-meso-microporosity and gallium deposited in channels of and/or on surfaces of the modified ZSM-5 zeolite. The hierarchical porosity of the modified ZSM-5 zeolite in the catalyst can reduce diffusion resistance of products during the aromatization reaction, thereby retarding carbon depositing rate and substantially improving catalytic activity, aromatic hydrocarbon selectivity, stability and lifetime of the catalyst. When being used in aromatization of propane, the catalyst exhibits a high stability, a lifetime of more than 320 hours, and a selectivity to aromatic hydrocarbons of up to 73.3 wt. %.

Abstract: In a method of generating a three-dimensional (3D) digital representation of traffic on a road, a computing device obtains videos taken by different cameras disposed on the road, and the videos record targets on the road at different viewing angles. The computing device determines a moving path of each target on the road based on the videos, and performs modeling on each target to generate a corresponding 3D modeled target. According to the moving path of each target and each 3D modeled target corresponding to each target, the computing device establishes a 3D digital representation of the traffic on the road. In the 3D digital representation, each modeled target moves on a 3D digital map corresponding to the road based on the moving path of the corresponding target.

Abstract: A method for controlling an air conditioner includes obtaining initial indoor ambient temperature and humidity, obtaining an initial dew point temperature according to the initial indoor ambient temperature and humidity, controlling a temperature of an indoor heat exchanger coil to be equal to the initial dew point temperature and maintaining a current operating frequency of a compressor unchanged, obtaining a current indoor ambient temperature, judging whether the current indoor ambient temperature is lower than or equal to a set temperature, if so, obtaining a current indoor ambient humidity and obtaining a current moisture content and a current dew point temperature according to the current indoor ambient temperature and the current indoor ambient humidity, and controlling the air conditioner to perform humidification or dehumidification according to the temperature of the indoor heat exchanger coil, the current moisture content, and the current dew point temperature.