Abstract: The present application discloses a device for enhancing combustion efficiency of a combustion unit, including a device body and a cap, wherein the device body has an open end, an accommodation space, a sealed end and an axial direction between the open end and the sealed end, the accommodation space is filled with a comburent that is slowly released and enters the combustion unit via the open end, a first cross sectional area of the open end perpendicular to the axial direction is larger than a second cross sectional area of the sealed end perpendicular to the axial direction, and the cap is detachably connected to the device body to close the open end.

Abstract: An antenna structure requiring less installation space but providing 2G-5G wireless capabilities includes a first antenna, a second antenna, and a ferrite beads module. The ferrite beads module connects between the first antenna and the second antenna. When the antenna structure operates at a first radiation frequency band, a connection between first antenna and second antenna is open, thus the second antenna operates independently. For a second radiation frequency band, the first antenna and the second antenna are shorted out and cooperatively transmit and receive wireless signals, frequencies of the first radiation frequency band being greater than frequencies of the second radiation frequency band. A wireless communication device employing the antenna structure is also provided.

Abstract: A method of performing gamut mapping on an input image for an image output device includes receiving the input image to analyze a color distribution of the input image; determining a protect range corresponding to a first percentage of color codes of the input image and a compression range corresponding to a second percentage of the color codes of the input image based on the color distribution of the input image; and moving at least one of the color codes of the input image outside the protect range of the color codes to the compression range by a compression algorithm to perform gamut mapping on the input image.

Abstract: An antenna structure of multi-band frequency and simple structure includes a base plate, a supporting portion and an antenna mounted on the supporting portion. The base plate has a signal source thereon. The antenna has an input end. The antenna includes a first antenna, a second antenna and a connecting portion coupled with the first antenna and the second antenna, the antenna also has a first switch portion, a second switch portion and a third switch portion, the base plate has a first circuit and a second circuit. The input end is mounted on the connecting portion, the first switch portion is mounted between the signal source and the input end, the second switch portion is mounted on the first antenna, and the third switch portion is mounted on the second antenna.

Abstract: The communication device includes a circuit board and a camera mechanism comprising a metal shielding and a camera module positioned on the circuit board. The metal shielding is arranged on the circuit board to cover the camera module and an antenna mechanism is arranged on the metal shielding and electrically connected to a ground region of the circuit board through the metal shielding. A wireless signal generated by the camera module is output by the antenna mechanism and radiates outward from the metal shielding.

Abstract: An antenna structure of the present disclosure includes a base plate, a supporting portion and an antenna mounted on the supporting portion. The base plate has a signal source thereon. The antenna has an input end. The antenna comprises a first antenna, a second antenna and a connecting portion coupled with the first antenna and the second antenna, the antenna also has a first switch portion, a second switch portion and a third switch portion, the base plate has a first circuit and a second circuit. The input end is mounted on the connecting portion, the first switch portion is mounted between the signal source and the input end, the second switch portion is mounted on the first antenna, the third switch portion is mounted on the second antenna.

Abstract: A method of performing gamut mapping on an input image for an image output device includes receiving the input image to analyze a color distribution of the input image; determining a protect range corresponding to a first percentage of color codes of the input image and a compression range corresponding to a second percentage of the color codes of the input image based on the color distribution of the input image; and moving at least one of the color codes of the input image outside the protect range of the color codes to the compression range by a compression algorithm to perform gamut mapping on the input image.

Abstract: A method of performing luminance/brightness adjustment and gamut mapping to high dynamic range images for a display device includes receiving an input image to analyze an image distribution of the input image, generating a scene information of the input image according to the image distribution, and performing luminance/brightness adjustment and gamut mapping to the input image according to the scene information, to generate an output image corresponding to the input image, wherein the scene information is regarded as dynamic metadata of the input image.

Abstract: A communication device achieving a better functional integration between multiple cameras and multiple antennas includes a housing, a circuit board received in the housing; a camera structure partially exposed through the housing, and an antenna structure. The camera structure comprises a first camera, a second camera, a first frame configured to received the first camera, and a second frame configured to received the second camera. The first camera and the second camera have a same orientation. The camera structure and the antenna structure are positioned on the circuit board. The antenna structure is positioned adjacent to and electrically connected to at least one of the first frame and the second frame.

Abstract: A method of performing luminance/brightness adjustment and gamut mapping to high dynamic range images for a display device includes receiving an input image to analyze an image distribution of the input image, generating a scene information of the input image according to the image distribution, and performing luminance/brightness adjustment and gamut mapping to the input image according to the scene information, to generate an output image corresponding to the input image, wherein the scene information is regarded as dynamic metadata of the input image.

Abstract: The communication device includes a circuit board and a camera mechanism comprising a metal shielding and a camera module positioned on the circuit board. The metal shielding is arranged on the circuit board to cover the camera module and an antenna mechanism is arranged on the metal shielding and electrically connected to a ground region of the circuit board through the metal shielding. A wireless signal generated by the camera module is output by the antenna mechanism and radiates outward from the metal shielding.

Abstract: A communication device achieving a better functional integration between multiple cameras and multiple antennas includes a housing, a circuit board received in the housing; a camera structure partially exposed through the housing, and an antenna structure. The camera structure comprises a first camera, a second camera, a first frame configured to received the first camera, and a second frame configured to received the second camera. The first camera and the second camera have a same orientation. The camera structure and the antenna structure are positioned on the circuit board. The antenna structure is positioned adjacent to and electrically connected to at least one of the first frame and the second frame.

Abstract: An image converting method includes calculating a plurality of segment averages of pixel values in a plurality segments of an input image; acquiring the maximum among the segment averages as a first threshold; calculating a plurality of local averages of pixel values in adjacent segments of input image; acquiring the maximum among local averages as a second threshold; counting the number of pixel values exceeding first threshold in the segments as a plurality of first pixel counts and counting the number of pixel values exceeding second threshold in the segments as a plurality of second pixel counts; generating a specular map and a confidence according to the first pixel counts and the second pixel counts; mapping the input image according to the specular map, to generate an intermediate image; and blending the input image and the intermediate image according to the confidence, to generate an output image.

Abstract: An antenna structure includes a main antenna, a diversity antenna, and at least one accessorial antenna. The main antenna extends in a main antenna direction. The diversity antenna is spaced apart from the main antenna and extends in a first radiation direction substantially parallel to the main antenna direction. The at least one accessorial antenna extends in a second radiation direction which is substantially perpendicular to either the main antenna direction or the first radiation direction.

Abstract: An antenna assembly includes a first antenna, a second antenna, and at least one connecting member. The first antenna includes a radiator and at least one connecting portion connected to the radiator, and the radiator is a part of a housing of a wireless communication device. The at least one connecting member is connected to the at least one connecting portion to fix the first antenna to the wireless communication device to feed current to the first antenna and the second antenna.

Abstract: An antenna structure includes a feed section, a ground section, a common section, a first radiator, a second radiator, and a third radiator. The common section is electrically connected to the feed section, and the third radiator is electrically connected to the ground section. The first radiator, the second radiator, and the third radiator are all connected to the common section. The second radiator is spaced from the third radiator to allow current to be coupled from the second radiator to the third radiator.

Abstract: A wireless communication device includes a base board, an antenna, a metal assembly, and a conductive assembly. The base board includes a feed portion and a ground portion, and defines a keep-out-zone. The antenna is located above the keep-out-zone, and is electronically connected to the feed portion and the ground portion. The metal assembly is located at the keep-out-zone, and is spaced from the antenna. The metal assembly is electronically connected to the feed portion and the ground portion through the conductive assembly.

Abstract: A wireless communication device includes a printed circuit board (PCB), a main antenna, and a coupling member. The main antenna is positioned on the PCB, and includes a first radiation portion and a second radiation portion. A first end of the coupling member is grounded via the PCB, and a second end of the coupling member is located between the first radiation portion and the second radiation portion. The coupling member is resonant with the first radiation portion and the second radiation portion.

Abstract: A wireless communication device includes a printed circuit board (PCB), a main antenna, an auxiliary antenna, and a metal member. The main antenna, the auxiliary antenna, and the metal member are positioned on the PCB. The metal member is spaced from the auxiliary antenna to allow current to be coupled from the auxiliary antenna to the metal member. Thus, the main antenna and the auxiliary antenna jointly form an orthographic electromagnetic field.

Abstract: An antenna structure includes a main antenna, a diversity antenna, and at least one accessorial antenna. The main antenna extends in a main antenna direction. The diversity antenna is spaced apart from the main antenna and extends in a first radiation direction substantially parallel to the main antenna direction. The at least one accessorial antenna extends in a second radiation direction which is substantially perpendicular to either the main antenna direction or the first radiation direction.