Abstract:
An electrical connector assembly (1) mounted on a printed circuit board (4) includes at least two electrical connectors (2) located on one side of the printed circuit board (4) and a back plate arrangement (3) located on the other side of the printed circuit board (4) opposite to the electrical connectors (2). The back plate arrangement (3) secures the electrical connectors (2) onto the printed circuit board (4), and includes at least two back plates (30) and at least one connecting bridge (31) interconnecting the at lest two back plates (30).
Abstract:
A spinal fusion device abutting and fixed between adjacent vertebrae. The spinal fusion device includes a support frame. The support frame has a plurality of extending bodies, each radially extending from a center of the support frame. A predetermined gap exists between every two adjacent extending bodies, receiving a bone graft.
Abstract:
A method for forming a periodic structure is disclosed. A structural layer and an optical modulation element are provided. A light is emitted to pass through the optical modulation element to irradiate interference strips on the structural layer. A photoelectrochemical etching (PEC) is performed to form the periodic structure according the interference strips irradiated on the structural layer.
Abstract:
An exemplary punch die (30) includes a lower die (40) and an upper die (50). The lower die includes a die core (45), a blank holder (417), and a cylinder (413) disposed in the lower die. The blank holder is disposed on a periphery of the die core. The cylinder is connected to the blank holder and provides a constant force to the blank holder. The upper die includes a punch core corresponding to the die core. A punch machine using the present punch die is also provided.
Abstract:
An electrical connector (4) comprises a frame (41) and a plurality of terminals (42) received in the frame. The frame comprises a first portion (410) defining a holding slot (4101), a second portion (411) extending angularly to the first portion and a retaining member (43) formed on the second portion. The terminals each has a contact section (425) and a solder tail (427) extending out of the frame. The plurality of terminals (42) are arranged two rows on the first portion (410) and one row on the second portion (411). The contact sections of two rows terminals on the first portion are located at opposite sides of the holding slot (4101) and the contact sections of one row terminals on the second portion expose to an outer surface of the second portion.
Abstract:
An echo cancellation circuit for an RFID reader and the method thereof are provided. The echo cancellation circuit includes a gain calculator, a gain adjustment circuit, and a subtraction circuit. The gain calculator provides a complex gain value according to a carrier signal and a received signal through an adaptive algorithm. The gain adjustment circuit is coupled to the gain calculator. The gain adjustment circuit multiplies the carrier signal by the complex gain value, and outputs the result of the multiplication. The subtraction circuit is coupled to the gain adjustment circuit. The subtraction circuit subtracts the output of the gain adjustment circuit from the received signal, and then provides the result of the subtraction as the output signal of the echo cancellation circuit.
Abstract:
An exemplary decoding method of an input video bitstream including a first bitstream and a second bitstream includes: decoding a first picture in the first bitstream; after a required decoded data derived from decoding the first picture is ready for a first decoding operation of a second picture in the first bitstream, performing the first decoding operation; and after a required decoded data derived from decoding the first picture is ready for a second decoding operation of a picture in the second bitstream, performing the second decoding operation, wherein The first bitstream contains pictures of a first view for a 3D video presentation, the second bitstream contains pictures of a second view for the 3D video presentation, and a time period of decoding the second picture in the first bitstream and a time period of decoding the picture in the second bitstream are overlapped in time.