Abstract: An optical signal coupling assembly includes a first connector and a second connector. The first connector includes a first main body and a number of first optical coupling lenses. The second connector includes a second main body and a plurality of second optical coupling lenses to be optically coupled with the first optical coupling lenses. The first main body further includes two first connecting members, and the second main body further includes two second connecting members. The second connecting member matches with the first connecting member, the first connecting member and the second connecting member are configured for both fixing and aligning the first connector with the second connector.

Abstract: An optical fiber connector includes a housing and a clamping element. The housing defines a receiving space including an inner bottom surface. The inner bottom surface defines first grooves and first receiving grooves aligned with the first grooves, and includes two clamping holes. The clamping element is received in the receiving space and includes a cantilever beam and two hooks extending from the cantilever beam. The cantilever beam includes a bottom surface defining a second receiving grooves. The two hooks are received into the two clamping holes to fix the clamping element to the housing. The first receiving grooves and the second receiving grooves cooperatively define receiving holes to receive optical fibers.

Abstract: An optical fiber connector for positioning a number of optical fibers is provided. The optical fiber connector includes an assembling portion and a number of guiding blocks protruding from the assembling portion. The assembling portion defines a number of positioning holes corresponding to the optical fibers in position. The guiding blocks and the positioning holes are alternatively arranged on the assembling portion. Each guiding block includes a wedge portion at an end away from the assembling portion for guiding a corresponding one of the optical fibers into a corresponding one of the positioning holes.

Abstract: Optical fiber connector includes a main body and at least one protrusion. The main body includes a first surface, a second surface, and at least one receiving hole defined therein. Each protrusion is positioned on the first surface and surrounds an opening of the corresponding receiving hole.

Abstract: An optical connector includes a first optical-electric coupling element and a second optical-electric coupling element. The first optical-electric coupling element includes a first side surface and a second side surface facing away from the first side surface. The first optical-electric coupling element includes two extension portions substantially perpendicularly extending from the first side surface. Each extension portion includes an inside surface substantially perpendicular to the first side surface. Each extension portion includes a rotation post substantially perpendicularly extending from the inside surface. The second optical-electric coupling element includes a third side surface. The second optical-electric coupling element includes a protrusion portion substantially perpendicularly extending from the third side surface. The protrusion portion includes two outside surfaces substantially perpendicular to the third side surface.

Abstract: An optical fiber connector includes a housing, a number of optical fibers, and a clamping element. The housing includes a top surface and an inner bottom surface, and defines a receiving space extending from the top surface, a number of grooves and a number of clamping holes both extending from the inner bottom surface. The inner bottom surface is adjacent to the receiving space. The optical fibers are received in the grooves. The clamping element is detachably engaged with the clamping holes to fix the optical fibers in the grooves.

Abstract: An optical connector includes a first optical-electric coupling element, a second optical-electric coupling element, and a fixing device. The first optical-electric coupling element defines a first cavity and a second cavity. The second cavity includes two opposite first sidewalls. Each first sidewall defines a locating cutout. The second optical-electric coupling element is received in the second cavity, and defines a third cavity. The third cavity includes two opposite second sidewalls. Each second sidewall defines a through hole. The fixing device includes two elastic deformable portions conforming the two through holes, and a number receiving holes each for receiving a optical fiber. The fixing device is received in the through holes, with the elastic deformable portion resisting against an internal sidewall of the locating cutout, to firmly lock the second optical-electric coupling element into the second cavity of the first optical-electric coupling element.

Abstract: An optical connector includes a first optical-electric coupling element and a second optical-electric coupling element. The first optical-electric coupling element includes a first side surface and a second side surface facing away from the first side surface. The first optical-electric coupling element includes two position posts substantially perpendicularly extending from the first side surface. Each position post includes a connection surface substantially parallel with the first side surface. Each connection surface defines a position slot. The second optical-electric coupling element includes a third side surface facing the first side surface. The third side surface defines two position holes. The second optical-electric coupling element includes two position flanges each extending from an inner sidewall of each position hole.

Abstract: An optical connector includes a first optical-electric coupling element and a second optical-electric coupling element. The first optical-electric coupling element includes a first side surface and a second side surface facing away from the first side surface. The first optical-electric coupling element includes two position posts substantially perpendicularly extending from the first side surface. Each position post includes a connection surface substantially parallel with the first side surface. Each connection surface defines a position slot. The second optical-electric coupling element includes a third side surface facing the first side surface. The third side surface defines two position holes. The second optical-electric coupling element includes two position flanges each extending from an inner sidewall of each position hole.

Abstract: An optical fiber connector for positioning a number of optical fibers is provided. The optical fiber connector includes an assembling portion and a number of guiding blocks protruding from the assembling portion. The assembling portion defines a number of positioning holes corresponding to the optical fibers in position. The guiding blocks and the positioning holes are alternatively arranged on the assembling portion. Each guiding block includes a wedge portion at an end away from the assembling portion for guiding a corresponding one of the optical fibers into a corresponding one of the positioning holes.

Abstract: A radio frequency identification rivet at least includes a rivet consisting of two or more interlocking devices, or a single locking device, with a radio frequency identification system installed in the rivet. So any object jointed with the rivet can not only be identified with radio frequency, but also attain anti-theft and anti-counterfeit purposes, unless the rivet is forcefully damaged taken off the object.

Abstract: Play equipment that combines the movements of a teeter totter and a merry-go-round includes a support for suspending a riding assembly, a riding assembly upon which a rider is supported, such as upon which a rider sits or a rider hangs from, and a suspending means which suspends the riding assembly from the support for both rotational movement with respect to the support and up and down movement with respect to the support. The up and down movement may be achieved by pivotal movement or by swinging movement. The support of the invention may be adjustable to adjust the height of the riding assembly. When seats for the riders are provided, the seats may include restraining means, such as back and side rails to help keep the rider in the seat. The equipment can include a single beam providing a pair of oppositely extending arms as with a traditional teeter tooter, or can include additional beams or arms, such as four arms, to accommodate additional riders.

Abstract: The present invention describes a method for square root computation, in which a shift-comparison operation is introduced into the computation process so as to obtain correction factors and adjusting factors. The bits of the correction factors are shifted to form estimation terms, and then the adjusting factors are used to correct the estimation terms to obtain the square root. The present invention is advantageous in both high speed for real-time operations and high accuracy.

Abstract: A font display method using a font display co-processor to accelerate font display includes receiving font information from a baseband CPU and loading a mapping table, a font bitmap table, and a font code table to the font display co-processor. The font information is corresponded to a font code according to the font code table. The font code corresponds to a font index according to the mapping table. The font index is corresponded to a font bitmap according to the font bitmap table. Some special effects may be added to the font bitmap displayed on a display module.

Abstract: All memory commands are classified into two categories: background commands and foreground commands, depending on whether they are data related or not. The pointed background command and foreground commands are issued onto the DRAM bus at the earliest time when the required constrains are met. The background and foreground FSM controllers work in a pipelined or overlapped manner.