Abstract: A rotating unit for controlling an antenna to rotate includes an electromagnetic element and a rotating circuit. The rotating circuit is electrically coupled with the electromagnetic element. The rotating circuit controls the electromagnetic element to generate a magnetic force for controlling a rotation of the antenna.

Abstract: A charging path switching circuit includes a first port, a second port, a path switch unit, and a conversion unit. The first port is connected to an external electronic device to obtain a first electrical signal. The second port is connected to an external power source to obtain a second electrical signal. The conversion unit is connected the path switch unit and converts the first electrical signal or the second electrical signal to a predetermined voltage. The path switch unit is connected to the first port and the second port. The path switch unit selects to connect to the first port or the second port, to obtain the first electrical signal or the second electrical signal according to the connection of the first and the second port. The path switch unit preferentially selects to obtain the second electrical signal from the second port.

Abstract: An image processing method for obtaining a panoramic image includes obtaining a first image and a second image by a camera unit, and obtaining location information between the viewpoints of the first image and the second image by a gyro. First features of the first image and second features of the second image are obtained according to a feature-capturing algorithm when pixel brightness differences exceed a threshold. Predicted features in the second imam are obtained by the location information, and predicted features that exceed a predetermined distance from the second features are discarded. A panorama image is obtained by combining the first image and the second image according to the first features and the selected second features.

Abstract: A system for combining wireless sensor networks includes a first sink transmitting a request to combine (RTC) and first routing-information. First nodes propagate data and instructions in a first wireless sensor network. The first nodes broadcast the RTC when the first nodes are boundary nodes. The first routing-information are established based on first transmission paths between the first sink and the first nodes. A second sink receives the RTC and the first routing-information from the first sink. The second sink transmits second routing-information to the first sink. The second routing-information are established based on second transmission paths between the second sink and the second nodes. The second node relays the RTC to the second sink according to a flag in a packet of the RTC. The first wireless sensor network combines with the second wireless sensor network to exchange the first routing-information and the second routing-information.

Abstract: A housing includes a main body, a mounting structure assembled to the main body, and a cover. The mounting structure includes a receiving part defining a receiving space for receiving a battery, a groove communicating with the receiving space, a slot communicating with the groove, and a driving member rotatably mounted in the receiving part. The driving member includes an extending arm and a pressing portion. The extending arm faces the groove. The pressing portion passes through the slot to expose out of the receiving part. The cover is detachably attached to the main body to seal the receiving space. When the battery is received in the receiving portion, the extending arm supports the battery, when the pressing portion is pressed, the extending arm is driven to rotate with respect to the receiving part so as to make the battery lift from the receiving space.

Abstract: A method for adjusting packet length is disclosed. A first dynamic reference point currently closest to the mobile device is calculated. A current position of a mobile device is compared with GPS data of the first dynamic reference point to calculate brief GPS data. It is determined whether a second dynamic reference point has been uploaded to the server. It is determined whether the first dynamic reference point is identical to the second dynamic reference point if the second dynamic reference point has been uploaded to the server. The first dynamic reference point is uploaded to the server if the first dynamic reference point is not identical to the second dynamic reference point. The first dynamic reference point is uploaded to the server if the second dynamic reference point has not been uploaded to the server, and the brief GPS data is uploaded to the server.

Abstract: A system for combining wireless sensor networks includes a first sink transmitting a request to combine (RTC) and first routing-information. First nodes propagate data and instructions in a first wireless sensor network. The first nodes broadcast the RTC when the first nodes are boundary nodes. The first routing-information are established based on first transmission paths between the first sink and the first nodes. A second sink receives the RTC and the first routing-information from the first sink. The second sink transmits second routing-information to the first sink. The second routing-information are established based on second transmission paths between the second sink and the second nodes. The second node relays the RTC to the second sink according to a flag in a packet of the RTC. The first wireless sensor network combines with the second wireless sensor network to exchange the first routing-information and the second routing-information.

Abstract: A charging path switching circuit includes a first port, a second port, a path switch unit, and a conversion unit. The first port is connected to an external electronic device to obtain a first electrical signal. The second port is connected to an external power source to obtain a second electrical signal. The conversion unit is connected the path switch unit and converts the first electrical signal or the second electrical signal to a predetermined voltage. The path switch unit is connected to the first port and the second port. The path switch unit selects to connect to the first port or the second port, to obtain the first electrical signal or the second electrical signal according to the connection of the first and the second port. The path switch unit preferentially selects to obtain the second electrical signal from the second port.

Abstract: An image processing method for obtaining a panoramic image includes obtaining a first image and a second image by a camera unit, and obtaining location information between the viewpoints of the first image and the second image by a gyro. First features of the first image and second features of the second image are obtained according to a feature-capturing algorithm when pixel brightness differences exceed a threshold. Predicted features in the second image are obtained by the location information, and predicted features that exceed a predetermined distance from the second features are discarded. A panorama image is obtained by combining the first image and the second image according to the first features and the selected second features.

Abstract: An antenna device includes a first antenna, a second antenna, a main short portion and a grounding portion. The first antenna and the second antenna are disposed in a PCB to radiate signals. The main short portion is disposed between the first antenna and the second antenna. The main short portion is further electrically coupled to the grounding portion. The main short portion adjusts current between the first antenna and the second antenna. Thus, the main short portion reduces interference between the first antenna and the second antenna. The first antenna includes a first feeding portion, a first short portion and a first coupling portion. A first end of the first feeding portion is suspended in the air. The first coupling portion is disposed in a first storage space. The first coupling portion is electrically insulated from the first short portion and the grounding portion.

Abstract: An installation assembly for a photovoltaic module comprises a base plate, a pressing block, a elastic member, and a connecting member. The base plate comprises a connecting portion. The pressing block comprises a pressing portion, a supporting portion, and a sliding portion. The sliding portion is movably connected to the base plate. The elastic member is located between the connecting portion and the supporting portion. The connecting member sequentially inserted into the pressing block, the elastic member, and the base plate. The pressing block, the elastic member, and the base plate are positioned between two ends of the connecting member.

Abstract: A rotating unit for controlling an antenna to rotate includes an electromagnetic element and a rotating circuit. The rotating circuit is electrically coupled with the electromagnetic element. The rotating circuit controls the electromagnetic element to generate a magnetic force for controlling a rotation of the antenna.

Abstract: A filter is disposed on a base board. The filter includes a first portion, a second portion, a ground portion, a first coupling portion and a second coupling portion. The first portion is disposed on a first layer in the base board to input signals. The second portion is disposed on the first layer to output signals. The ground portion is disposed on a second layer in the base board. The first coupling portion is disposed on the first layer. The first coupling portion is electrically coupled to the first portion and the second portion. The first coupling portion is electrically coupled to the ground portion through via holes. The second coupling portion is disposed on the first layer. The second coupling portion is electrically coupled to the first portion and the second portion. The second coupling portion is electrically coupled to the ground portion through the via holes.

Abstract: A method for displaying remaining battery capacity of an electronic device includes calculating remaining capacity of the battery for a number of predetermined times during a preset interval when a first difference value is greater than a predetermined value. The first difference value is between a first remaining capacity and a second remaining capacity. The first remaining capacity of the electronic device is recorded before turning off the electronic device, and the second remaining capacity of the electronic device after turning on the electronic device. The latest calculated remaining capacity during the preset interval is displayed on the display device when a second difference between each calculated remaining capacity and the first remaining capacity is greater than the predetermined value.

Abstract: An encryption method includes: converting a section of express information into a binary sequence, grouping the binary sequence into a plurality of group data, and aligning each group data into an information matrix; converting the information matrix into a corresponding a basic group information matrix; randomly choosing a reference DNA sequence from a gene library, and aligning the reference DNA sequence into a basic group transition matrix, using the basic group transition matrix to convert the basic group information matrix into an encrypted information matrix, and exploding the encrypted information matrix to obtain a basic group information sequence; generating a primer for the basic group information sequence, and adding the primer before and behind the primer generator to obtain a completed DNA sequence; and synthesizing a DNA matter based on the completed DNA sequence.

Abstract: A voltage level translation circuit includes a first energy storage unit, a second energy storage unit, a first voltage level translation unit, and a second voltage level translation unit. The first voltage level translation unit is configured to translate a first communication interface transmitting pin voltage signal to realize a first communication between a first communication interface transmitting pin and a second communication interface receiving pin. The second voltage level translation unit is configured to translate a second communication interface transmitting pin voltage signal to realize a second communication between a second communication interface transmitting pin and a first communication interface receiving pin. A multiple interface communication system is also provided.

Abstract: A connection method for a mobile device to access the Internet through wireless Local Area Network (WLAN) established by a wireless access point (WAP) includes receiving a connection request from a mobile device. Login information and interface is sent to the mobile device by WAP, the mobile device can generate and broadcast dual tone multi frequency information including its own MAC address through loudspeaker. A distance between the mobile device and the WAP being close, the information of mobile device through DTMF is heard and received and MAC address is extracted. If the extracted MAC address matches the MAC address recorded in an access control list of the WAP, the mobile device is permitted to access the internet through the established WLAN.