Abstract: A gastrointestinal tract diagnosis device comprising: an endoscope, having a magnetic plate with a first magnetic pole and a second magnetic pole; a magnetic control device including a magnetic stick with a first electrical magnetic pole and a second electrical magnetic pole, a magnetic force output module causing a predetermined force on the first electrical pole and the second magnetic pole by outputting a predetermined current; and a magnetic force feedback module, wherein the predetermined force is applied to the magnetic plate to control the movement of the endoscope; the magnetic plate causes a feedback magnetic force to a sensor in the magnetic stick and changes the predetermined current to an offset current, and the offset current is corrected back to the predetermined current by the magnetic force feedback module, so as to improve the movement control of the endoscope. A control method based on the above disclosure is provided, too.

Abstract: A gastrointestinal tract diagnosis device, comprising: an endoscope having a substrate and a control unit and a recognition marker therein; an image capturing module including a first lens and an image sensor that are disposed on the substrate; an illuminating module including a first light source disposed on the substrate; an enclosure body assembled to a connection device to waterproofingly enclose the image capturing module and the illuminating module; and a work station connecting to the endoscope to access the recognition marker to add a machine identity into the recognition marker to match with the endoscope, wherein the work station determines if a usage state of the endoscope is overdue; the work station determines if the endoscope has connected to an another work station different from the work station by the recognition marker and the machine identity. A control method based on the above device is also provided.

Abstract: A combination structure for adjusting the clearance of projected images includes a micro projecting panel, a micro projector body, an elastic spring, a quarter wave plate set and an adjusting screw. The micro projecting panel is arranged at the peripheral of a projecting window of the micro projector body. The quarter wave plate set is inserted into an adjusting groove of the micro projector body. A supporting arm of the quarter wave plate set is arranged in an axial hole of the micro projector body. The elastic spring and the adjusting screw are arranged into the axial hole of the micro projector body. The adjusting screw is adjusted for finely adjusting the space between the quarter wave plate set and the micro projecting panel. By applying the combination structure, the clearance of projected images can be improved.

Abstract: The present disclosure provides a heat-dissipating apparatus for printed circuit board. The heat-dissipating apparatus adopts a ceramic device arranged between the printed circuit board and ground. Therefore, the apparatus can achieve the purpose of heat dissipation and save space of the printed circuit board and save cost of using a fan and cooling fins.

Abstract: The present invention is related to an improved projection module, and more particularly, to a projection module integrated with necessary combinations so as to reduce error probabilities of circuit designs. In accordance with the present invention, an improved projection module includes a panel, a panel driving circuit and a light driving circuit. Accordingly, in accordance with the novel combination of the present invention, a projector manufacturer can be easy to use its own conditions to develop suitable products. Therefore, the burdens and error probabilities of designing circuits in development can be reduced.

Abstract: This multimedia player and projector includes a projector and a support on the top of it, and a cover could be lift and turn backward to open, which is assembled on one side of the top of the projector. There is a plug inside the cover which could provide electrical connection between projector and mobile device. Support is for disposing a mobile device which is assembled by a plate which is connected to projector by an axle, and a latch which is assembled on the rare of the plate which could set the angle between the latch and projector from 0 to 90 degrees.

Abstract: A polarization recycling structure that can recycle polarized light efficiently; according to its technical means, said polarization recycling structure is provided with an incident end enabling incident of unpolarized light and an outgoing end enabling radiation of vertical polarized light; it comprises: a first optical structure set adjacent to the incident end, a second optical structure adjacent to the outgoing end and a main gap set between the first and second optical structures; it is characterized by that: said first optical structure comprises of a first lens array and a first polarized grating that are arranged from the adjacent incident end to the main gap; said second optical structure comprises of a second polarized grating, a secondary gap, a louvered multi-twist retarder and a second lens array that are arranged from the adjacent main gap to the outgoing end.

Abstract: In priority art, the projector emits light through lens and other optical devices to display devices for projecting images. Such devices produce a lot of heat. Present cooling model structure must use over 2 fans to reduce the working temperature of the projector and keep the projector functional. However, it cause increasing of electricity consuming and the price of production. The invention use only one fan and exhaust the heat by the combination of heat conductive nugget (33) and heat conductive object (32) for reducing working temperature and keep the projector functional.

Abstract: A pico projection light system for improving an optical engine of a pico projector and enhancing effects of lighting. The improved pico projection light system comprises a light-emitting diode acting as a light source, a set of three collimators arranged with spaces therebetween and converting light emitted by the light-emitting diode into a parallel light, a set of two lens arrays arranged with spaces therebetween and uniformizing the parallel light, a set of two positive lenses arranged with spaces therebetween and magnifying light emitted from the lens arrays, a polarizing beam splitter receiving the magnified light and having a horizontal polarized light pass therethrough, and a reflective liquid crystal panel reflecting light and modulating optical signals projecting on a screen.

Abstract: A projection lens assembly with six lenses, suitable for being applied to a pico projector projecting vivid and clear images. The projection lens assembly comprises six lenses, that is, a first lens having a minus focal distance, a second lens having a positive focal distance, a third lens having a minus focal distance, a fourth lens having a positive focal distance, a fifth lens having a positive focal distance and a sixth lens having a positive focal distance arranged in sequence and with spaces therebetween, an aperture stop between the second lens having the positive focal distance and the third lens having the minus focal distance, a reflective liquid-crystal panel behind the sixth lens having the positive focal distance, wherein the front sixth lens having the positive focal distance has a greater area than that of the rear reflective liquid-crystal panel.

Abstract: An audio and video gadget is an entertainment device provided with audio and video functions and communication functions and easily carried by a user. The audio and video gadget comprises a speaker set having a speaker therein and outputting power, a multimedia decoder over the speaker set, wherein the speaker set plays sound from the multimedia decoder, accompanying with video played by a phone, a light-emitting-diode lamp mounted with two sides of the multimedia decoder, wherein the light-emitting-diode lamp has an arc shape, a smart-phone pedestal over a top surface of the multimedia decoder, wherein the smart-phone pedestal is replaceable, and a pico projector over the light-emitting-diode lamp, wherein the light-emitting-diode lamp comprises a transmitting channel therein connected to the pico projector and the multimedia decoder, wherein the pico projector projects an image output from the multimedia decoder and the phone.

Abstract: An embedded imaging module is detachably embedded in a display device to replace the existing fixed web cam that is fixed to the display device for the purposes of enhance flexibility of image taking by a use. In construction, the arrangement includes a display device, a detachable imaging module, a retractable cable, and an auto-focusing lens constituting partly the imaging module. The display device has a circumferential edge having a corner forming a receiving space in which the detachable imaging device is detachably embedded. The retractability of the retractable cable provides connection between the display device and the imaging device to serve as a signal transmission line therebetween in both detached and embedded conditions of the imaging module.

Abstract: The display device contains a flat panel mounted in a frame and a camera module positioned inside a through opening in the top rim of the frame. The top and bottom sides of the camera module are pin-joined to a top wall and a bottom wall of the through opening, respectively, so that the camera module could be revolved laterally inside the through opening of the flat panel's frame.

Abstract: The display device contains a flat panel mounted in a frame and a camera module positioned inside a through opening in the top rim of the frame. A camera of the camera module is located at a lateral side of the camera module. With the increased space achieved, the camera is able to provide optical zoom capability. The top and bottom sides of the camera module are pin-joined to a top wall and a bottom wall of the through opening, respectively, so that the camera module could be revolved laterally inside the through opening of the flat panel's frame.

Abstract: This invention presents a CORDIC-based split-radix FFT/IFFT (Fast Fourier Transform/Inverse Fast Fourier Transform) processor dedicated to the computation of 2048/4096/8192-point DFT (Discrete Fourier Transform). The arithmetic unit of butterfly processor and twiddle factor generator are based on CORDIC (Coordinate Rotation Digital Computer) algorithm. An efficient implementation of CORDIC-based split-radix FFT algorithm is demonstrated. All control signals are generated internally on-chip. The modified-pipelining CORDIC arithmetic unit is employed for the complex multiplication. A CORDIC twiddle factor generator is proposed and implemented for saving the size of ROM (Read Only Memory) required for storing the twiddle factors. Compared with conventional FFT implementations, the power consumption is reduced by 25%.