Abstract: A method, apparatus, computer device, and storage medium for automatic design of analog circuits based on tree structure. The method includes: setting the maximum height and growth direction of the tree structure; randomly calling the node from the function node library as the parent node; randomly calling the node from the function node library and the port node library as the child according to the growth direction node; if the child node is a terminal node, generating a tree structure; checking the tree structure, if the tree structure satisfies the preset conditions, obtaining the circuit topology and device parameter that conform to the circuit rules; evolving the circuit topology and device parameter to generate an analog circuit. The embodiments achieve the effect of making the tree structure of the designed analog circuit more reasonable.

Abstract: A method, apparatus, computer device, and storage medium for automatic design of analog circuits based on tree structure. The method includes: setting the maximum height and growth direction of the tree structure; randomly calling the node from the function node library as the parent node; randomly calling the node from the function node library and the port node library as the child according to the growth direction node; if the child node is a terminal node, generating a tree structure; checking the tree structure, if the tree structure satisfies the preset conditions, obtaining the circuit topology and device parameter that conform to the circuit rules; evolving the circuit topology and device parameter to generate an analog circuit. The embodiments achieve the effect of making the tree structure of the designed analog circuit more reasonable.

Abstract: Examples herein provide multi-turn coil multiplex circuits. The multi-turn coil multiplex circuits include a multi-turn coil, a switch, a near field communication (NFC) matching circuit, and a camera circuit. The switch includes a common port, a first port, and a second port. The multi-turn coil is connected to the common port. The NFC matching circuit is connected to the first port. The camera circuit is connected to the second port. Where a camera control signal is present, the connection with the second port is activated and the multi-turn coil can be used as a camera focusing coil associated with the camera circuit. Where no camera control signal is present, the connection with the first port is activated and the multi-turn coil can be used as an NFC antenna associated with the NFC matching circuit.

Abstract: A resonant rectifying device includes a transformer having a primary winding and a secondary winding, a primary-side circuit coupled to the primary winding of the transformer, and a secondary-side circuit coupled to the secondary winding of the transformer. The primary-side circuit includes a first field effect transistor (FET) and a second FET coupled in series between a voltage source and a ground, a capacitor, and an inductor. A first side of the capacitor is coupled to a point between the first and the second FETs. A second side of the capacitor is coupled to a first end of the inductor and one end of the primary winding. A second end of the inductor is coupled to the ground. The secondary-side circuit includes a third FET and a fourth FET coupled to a first end and a second end of the secondary winding, respectively.

Abstract: In the connector, a plurality of parallel flanges and groove pins between every two of the parallel flanges are additionally provided to the middle of the connector plug. A plurality of parallel grooves and flange pins between every two of the parallel grooves are additionally provided to the middle of the connector socket. The plurality of flanges of the connector plug are inserted into the plurality of grooves of the connector socket. The mating face of the connector plug is in contact with the mating face of the connector socket.

Abstract: A method for a terminal to obtain information includes reading authentication information stored by a smart card external to the terminal, the authentication information being provided by an operator; storing the read authentication information in a memory of the terminal; and obtaining a service provided by the operator according to the authentication information stored in the memory.

Abstract: A method for protecting privacy information in a mobile terminal, including: granting, by the mobile terminal, user access according to an operation of a user, the granted access corresponding to the operation; enabling, by the mobile terminal, a protection mechanism set for the privacy information to be effective if the granted access does not include access to the privacy information; and disabling, by the mobile terminal, the protection mechanism set for the privacy information to be ineffective if the granted access includes access to the privacy information.

Abstract: A resonant rectifying device includes a transformer having a primary winding and a secondary winding, a primary-side circuit coupled to the primary winding of the transformer, and a secondary-side circuit coupled to the secondary winding of the transformer. The primary-side circuit includes a first field effect transistor (FET) and a second FET coupled in series between a voltage source and a ground, a capacitor, and an inductor. A first side of the capacitor is coupled to a point between the first and the second FETs. A second side of the capacitor is coupled to a first end of the inductor and one end of the primary winding. A second end of the inductor is coupled to the ground. The secondary-side circuit includes a third FET and a fourth FET coupled to a first end and a second end of the secondary winding, respectively.

Abstract: The embodiments of the present disclosure provide a method for controlling an antenna of a terminal device. The method comprises: acquiring an environmental state parameter of a terminal device; extracting an antenna performance parameter corresponding to the environmental state parameter from a preset antenna performance parameter table; and adjusting an antenna signal of the terminal device using the antenna performance parameter. According to the embodiment of the disclosure, a preferable antenna performance parameter may be obtained by acquiring the environmental state parameter of the location where the terminal device is located, and the antenna is adjusted according to the preferable antenna performance parameter, thereby achieving an intelligent adjustment of the antenna and adapting to the environmental change, thus the antenna is highly practical, strongly adaptive as well as efficient in operation.

Abstract: Examples herein provide multi-turn coil multiplex circuits. The multi-turn coil multiplex circuits include a multi-turn coil, a switch, a near field communication (NFC) matching circuit, and a camera circuit. The switch includes a common port, a first port, and a second port. The multi-turn coil is connected to the common port. The NFC matching circuit is connected to the first port. The camera circuit is connected to the second port. Where a camera control signal is present, the connection with the second port is activated and the multi-turn coil can be used as a camera focusing coil associated with the camera circuit. Where no camera control signal is present, the connection with the first port is activated and the multi-turn coil can be used as an NFC antenna associated with the NFC matching circuit.

Abstract: A power supply circuit and an electronic equipment, pertaining to the field of electronic circuit, are provided. The power supply circuit includes: a battery, a power management chip and a radio frequency (RF) chip; an output terminal of the battery is connected to at least one input terminal of the power management chip, while the at least one input terminal of the power management chip is individually grounded via a corresponding filter capacitor, respectively; and the output terminal of the battery is also connected to an input terminal of the RF chip via a switching power supply circuit. In the present disclosure, a switching power supply circuit is provided between the output terminal of the battery and the input terminal of the RF chip, thus the noise produced by the ceramic capacitor is substantially eliminated.

Abstract: Examples herein provide alternative systems for switching cameras on a mobile device. A method of the systems can include receiving, at control circuitry of a mobile device, user-inputted instructions to activate a first camera of the mobile device, so that the first camera is operable to capture an image. The method can also include receiving touch instructions from a touchscreen of the mobile device indicative of a user interaction with the touchscreen. The method can also include determining whether the user interaction with the touchscreen matches one of a set of user interactions with the touchscreen indicative of activating a second camera and deactivating the first camera. The method can also include activating the second camera and deactivating the first camera, where the user interaction matches the one of the set of user interactions.

Abstract: In the connector, a plurality of parallel flanges and groove pins between every two of the parallel flanges are additionally provided to the middle of the connector plug. A plurality of parallel grooves and flange pins between every two of the parallel grooves are additionally provided to the middle of the connector socket. The plurality of flanges of the connector plug are inserted into the plurality of grooves of the connector socket. The mating face of the connector plug is in contact with the mating face of the connector socket.

Abstract: Embodiments of the present disclosure disclose a terminal and method for controlling a screen. The method comprises: during a calling or call originating process of the terminal, determining whether a distance between a specified area and a human body is larger than a distance threshold value based on an electrical signal generated by the screen when the specified area of a screen of the terminal gets close to the human body; controlling the screen to be off if it is determined that the distance is not larger than the distance threshold value, and controlling the screen to be on if it is determined that the distance is larger than the distance threshold value. By adopting the technical solution disclosed in the embodiments of the present disclosure, the on and off status of the screen can be controlled more precisely during the calling or call originating process of the terminal.

Abstract: The embodiments of the present disclosure provide a method for controlling an antenna of a terminal device. The method comprises: acquiring an environmental state parameter of a terminal device; extracting an antenna performance parameter corresponding to the environmental state parameter from a preset antenna performance parameter table; and adjusting an antenna signal of the terminal device using the antenna performance parameter. According to the embodiment of the disclosure, a preferable antenna performance parameter may be obtained by acquiring the environmental state parameter of the location where the terminal device is located, and the antenna is adjusted according to the preferable antenna performance parameter, thereby achieving an intelligent adjustment of the antenna and adapting to the environmental change, thus the antenna is highly practical, strongly adaptive as well as efficient in operation.

Abstract: A method for a terminal to obtain information includes reading authentication information stored by a smart card external to the terminal, the authentication information being provided by an operator; storing the read authentication information in a memory of the terminal; and obtaining a service provided by the operator according to the authentication information stored in the memory.

Abstract: A method for protecting privacy information in a mobile terminal, including: granting, by the mobile terminal, user access according to an operation of a user, the granted access corresponding to the operation; enabling, by the mobile terminal, a protection mechanism set for the privacy information to be effective if the granted access includes access to the privacy information; and disabling, by the mobile terminal, the protection mechanism set for the privacy information to be ineffective if the granted access does not include access to the privacy information.

Abstract: Embodiments of the present disclosure disclose a terminal and method for controlling a screen. The method comprises: during a calling or call originating process of the terminal, determining whether a distance between a specified area and a human body is larger than a distance threshold value based on an electrical signal generated by the screen when the specified area of a screen of the terminal gets close to the human body; controlling the screen to be off if it is determined that the distance is not larger than the distance threshold value, and controlling the screen to be on if it is determined that the distance is larger than the distance threshold value. By adopting the technical solution disclosed in the embodiments of the present disclosure, the on and off status of the screen can be controlled more precisely during the calling or call originating process of the terminal.

Abstract: The invention discloses a communication method for modules within device. The method sets a centralized exchanging and controlling unit in the device, and every module is connected with the centralized exchanging and controlling unit through its own communication control interface. When a message is sending from one module to another module, first the source module sends the message to the centralized exchanging and controlling unit, after processing in the centralized exchanging and controlling unit the message is forwarded to the destination module defined in the message. Since every module is directly connected with the centralized exchanging and controlling unit in a high-speed link, so any two modules communication with the following advantages: high reliability, to locate a fault point is easier, number of the modules that take part in the communication is unlimited, the system design is simple, easier and flexible.

Abstract: The invention discloses a communication method for modules within device. The method sets a centralized exchanging and controlling unit in the device, and every module is connected with the centralized exchanging and controlling unit through its own communication control interface. When a message is sending from one module to another module, first the source module sends the message to the centralized exchanging and controlling unit, after processing in the centralized exchanging and controlling unit the message is forwarded to the destination module defined in the message. Since every module is directly connected with the centralized exchanging and controlling unit in a high-speed link, so any two modules communication with the following advantages: high reliability, to locate a fault point is easier, number of the modules that take part in the communication is unlimited, the system design is simple, easier and flexible.