Abstract: An encoding method, a decoding method, and a device for point cloud compression are provided. The encoding method includes the following. Point cloud data corresponding to a first frame is obtained, and is distinguished into a global point cloud set and at least one object point cloud set according to a reference frame. The object point cloud set corresponds to at least one reference object point cloud set. A global dynamic model corresponding to the global point cloud set is calculated and an object dynamic model corresponding to the object point cloud set is calculated. A bitstream is generated. The bitstream includes the global point cloud set, the global dynamic model corresponding to the global point cloud set, a serial number of each object point in the reference object point cloud set, and the object dynamic model corresponding to the object point cloud set.

Abstract: An integrated circuit package including electrically floating metal lines and a method of forming are provided. The integrated circuit package may include integrated circuit dies, an encapsulant around the integrated circuit dies, a redistribution structure on the encapsulant, a first electrically floating metal line disposed on the redistribution structure, a first electrical component connected to the redistribution structure, and an underfill between the first electrical component and the redistribution structure. A first opening in the underfill may expose a top surface of the first electrically floating metal line.

Abstract: A blood pressure detection device manufactured by a semiconductor process includes a substrate, a microelectromechanical element, a gas-pressure-sensing element, a driving-chip element, an encapsulation layer and a valve layer. The substrate includes inlet apertures. The microelectromechanical element and the gas-pressure-sensing element are stacked and integrally formed on the substrate. The encapsulation layer is encapsulated and positioned on the substrate. A flowing-channel space is formed above the microelectromechanical element and the gas-pressure-sensing element. The encapsulation layer includes an outlet aperture in communication with an airbag. The driving-chip element controls the microelectromechanical element, the gas-pressure-sensing element and valve units to transport gas.

Abstract: A semiconductor structure includes a functional die, a dummy die, a redistribution structure, a seal ring and an alignment mark. The dummy die is electrically isolated from the functional die. The redistribution structure is disposed over and electrically connected to the functional die. The seal ring is disposed over the dummy die. The alignment mark is between the seal ring and the redistribution structure, wherein the alignment mark is electrically isolated from the dummy die, the redistribution structure and the seal ring. The insulating layer encapsulates the functional die and the dummy die.

Abstract: An optical lens includes a first lens group and a second lens group. The first lens group has at least two lenses that include at least one aspheric lens, the second lens group has at least four lenses that includes at least one aspheric lens, and a total number of lenses with refractive powers in the optical lens is smaller than nine. The first and the second lens groups include a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens in order from the magnified side to the minified side. The first lens to the sixth lens have respective refractive powers of negative, negative, positive, positive, negative and positive.

Abstract: Detecting an unauthorized wireless access point in a network uses a detector. A rogue access point detector receives an incoming data packet which is scanned for a time expiration value. The time expiration value may be a Time To Live (TTL) value as used in Internet Protocol data packet headers. It is determined whether the time expiration value is the same as a threshold time expiration value. If the time expiration value is not the same as the threshold value, it is determined whether the incoming data packet was routed through an authorized access point in the network. If it is determined that the packet is not being routed from an authorized access point, a security component in the network, such as a network administrator's workstation, is notified. During this process the time expiration value remains unchanged.

Abstract: A manufacturing method and a foaming manufacturing method of polymethyl methacrylate/silica composite material are disclosed. At first, synthesize silica by a sol-gel process. Then, prepare polymethyl methacrylate/silica composite material by bulk polymerization. At last, prepare polymethyl methacrylate/silica foam nanocomposite material from polymethyl methacrylate/silica composite material by a foaming method.

Abstract: A manufacturing method and a foaming manufacturing method of polymethyl methacrylate/silica composite material are disclosed. At first, synthesize silica by a sol-gel process. Then, prepare polymethyl methacrylate/silica composite material by bulk polymerization. At last, prepare polymethyl methacrylate/silica foam nanocomposite material from polymethyl methacrylate/silica composite material by a foaming method.

Abstract: The invention disclosed a striking type of entertainment performance apparatus with reactive sound-light comprising: a striking module provided on the lower part for interacting with the player, with a plurality of trigger striking region provided on the striking face; a plurality of dependent striking portion that spin or swing intentionally accompany the applied force; a lamplight reactive module, which is hung on the high part and includes a plurality of lamplight reactive region and a plurality of dependent reactive region, and respond to corresponding striking module by a plurality of driving device and lamplight device. Thus, the performer may hit the striking module to match the musical sound and rhythm so that the reactive module can respond with projection, twinkling, movement or rotation through various lamplight device to create sensual special effect of surrounding.