Abstract: An arteriovenous fistula (AVF) stenosis detection system and method thereof and sensing device are provided. The AVF stenosis detection system includes: a sensing device including a microphone; and a server coupled to the sensing device. The sensing device contacts a first location of a patient body, wherein there is a first distance between the first location and a second location of an AVF of the patient body, and the first location is located on an extended path of an artery or a vein corresponding to the AVF. The sensing device receives a frequency spectrum signal through the microphone and transmits the frequency spectrum signal to the server. The server calculates a stenosis percentage of the AVF corresponding to the frequency spectrum signal through a machine learning module and transmits the stenosis percentage to the sensing device.

Abstract: An illumination system for a projection apparatus includes a light source module, an integrating rod and an optical detecting module. The light source module is capable of emitting an illuminating light beam. The integrating rod has a light entrance surface facing toward the light source module. The optical detecting module includes a light guiding device and an optical detecting device. The light guiding device has a first end surface and a second end surface. The first end surface is farther away from the light entrance surface of the integrating rod than the second end surface. The optical detecting device is disposed adjacent to the first end surface of the light guiding device and electrically connected to the light source module. The light source module is capable of adjusting intensity of the illuminating light beam according to randomly emitted light detected by the optical detecting device.

Abstract: A CD player, which comprises a conveying roller, a first sensing rod, a second sensing rod, a linkage member, a first switch and a second switch; wherein the linkage member is used for transmitting the rotation of the first sensing rod to the second sensing rod and provided with a first retaining part, a first clamping part, a second retaining part, a second clamping part; the two retaining parts are respectively arranged on both sides of a centerline of a CD conveying path; when the first sensing rod is prevented from rotating by the first retaining part, the second sensing rod is used for releasing the behavior; and when the second sensing rod is prevented from rotating by the second retaining part, the first sensing rod is used for releasing the behavior. The player can avoid the malfunction of a major-diameter CD detection switch and has a very simple structure.

Abstract: A compact disc (CD) player, which comprises playback substrates, a conveying roller, CD sensors, a CD stopper, a first trigger member, frame members, cam members and moving members, wherein the CD stopper has a major axis and abutting portions disposed at both ends of the axis; the first trigger member rotates when a minor-diameter CD stops at a mounting position on a turntable; the frame members receive the movement of the first trigger member; the cam members are coupled to the frame members; the moving members receive the rotation of the CD sensor and move along the outside diameter of a CD; the moving members are provided with clamping portions and abutted portions configured to be clamped with the abutting portions; and the cam members are provided with clamped portions configured to abut against the clamping portions.

Abstract: A backup battery charger charges a backup battery of a handheld electronic device. The handheld electronic device comprises a power supply unit and an electronic component. The power supply unit supplies a power to the electronic component. The backup battery charger is connected to the electronic component, such that the backup battery charger shares with the electronic component the power, uses the power as a charging power, and controllably determines via a control module whether to supply the charging power to the backup battery.

Abstract: A compact disc (CD) player, which comprises playback substrates, a conveying roller, CD sensors, a CD stopper, a first trigger member, frame members, cam members and moving members, wherein the CD stopper has a major axis and abutting portions disposed at both ends of the axis; the first trigger member rotates when a minor-diameter CD stops at a mounting position on a turntable; the frame members receive the movement of the first trigger member; the cam members are coupled to the frame members; the moving members receive the rotation of the CD sensor and move along the outside diameter of a CD; the moving members are provided with clamping portions and abutted portions configured to be clamped with the abutting portions; and the cam members are provided with clamped portions configured to abut against the clamping portions.

Abstract: A CD player, which comprises a conveying roller, a first sensing rod, a second sensing rod, a linkage member, a first switch and a second switch; wherein the linkage member is used for transmitting the rotation of the first sensing rod to the second sensing rod and provided with a first retaining part, a first clamping part, a second retaining part, a second clamping part; the two retaining parts are respectively arranged on both sides of a centerline of a CD conveying path; when the first sensing rod is prevented from rotating by the first retaining part, the second sensing rod is used for releasing the behavior; and when the second sensing rod is prevented from rotating by the second retaining part, the first sensing rod is used for releasing the behavior. The player can avoid the malfunction of a major-diameter CD detection switch and has a very simple structure.

Abstract: A compact disc centering apparatus of a compact disc player includes carrying rollers which are disposed within a compact disc entry on the opposite sides thereof and a compact disc guiding; a pair of detection rods capable of synchronized rotating, which is disposed between a support plate and the compact disc entry. The apparatus also includes a control device and a trigger device, wherein, an engaging portion is disposed on the control device and extends along the direction in which the control device moves, and an engaged portion is disposed on the trigger device and engages with the engaging portion. When the engaged portion is located in the engaging portion, the contact between the engaging portion and the engaged portion makes the trigger device rotate and stop at a position such that the center of the compact disc is coincident with the center of the support plate.

Abstract: An illumination system for a projection apparatus includes a light source module, an integrating rod and an optical detecting module. The light source module is capable of emitting an illuminating light beam. The integrating rod has a light entrance surface facing toward the light source module. The optical detecting module includes a light guiding device and an optical detecting device. The light guiding device has a first end surface and a second end surface. The first end surface is farther away from the light entrance surface of the integrating rod than the second end surface. The optical detecting device is disposed adjacent to the first end surface of the light guiding device and electrically connected to the light source module. The light source module is capable of adjusting intensity of the illuminating light beam according to randomly emitted light detected by the optical detecting device.

Abstract: A MEMS microphone module includes a substrate and a conducting lid covered on the substrate to define a chamber therebetween for accommodation of a MEMS chip and an ASIC chip. A ground layer of the substrate is electrically coupled to a protrusion of the conductive lid to form an EMI shielding structure. By this way, an EMI shielding effect can be applied by the EMI shielding structure to the MEMS chip and the ASIC chip.

Abstract: The invention relates to an optical-disc player, which comprises a pair of optical-disc sensor levers, a conveying roller used for conveying an optical disc by clamping the optical disc on an optical-disc guide plate, a roller supporting component, a driving member embedded with the roller supporting component, a cam gear used for moving the driving member, a driving gear used for driving the cam gear, switches used for controlling the rotation of a motor, and a traverse mechanism having a pick-up and a turntable, wherein the component, embedded with the roller supporting component and used for driving the conveying roller and the optical-disc guide plate to be engaged and disengaged, on the driving member is an E-shaped cam hole; a convex portion, a first toothed portion and a second toothed portion are formed on the cam gear; and a toothless portion is formed between the two toothed portions.

Abstract: The invention relates to an optical-disc player, which comprises a pair of optical-disc sensor levers, a conveying roller used for conveying an optical disc by clamping he optical disc on an optical-disc guide plate, a roller supporting component, a driving member embedded with the roller supporting component, a cam gear used for moving the driving member, a driving gear used for driving the cam gear, switches used for controlling the rotation of a motor, and a traverse mechanism having a pick-up and a turntable, wherein the component, embedded with the roller supporting component and used for driving the conveying roller and the optical-disc guide plate to be engaged and disengaged, on the driving member is an E-shaped cam hole; a convex portion, a first toothed portion and a second toothed portion are formed on the cam gear; and a toothless portion is formed between the two toothed portions.

Abstract: A backup battery charger charges a backup battery of a handheld electronic device. The handheld electronic device comprises a power supply unit and an electronic component. The power supply unit supplies a power to the electronic component. The backup battery charger is connected to the electronic component, such that the backup battery charger shares with the electronic component the power, uses the power as a charging power, and controllably determines via a control module whether to supply the charging power to the backup battery.

Abstract: A combined MicroElectroMechanical Systems (MEMS) microphone includes a first substrate, a second substrate, a vibrating diaphragm, a backplate, and an accommodating slot. The first substrate has a first chamber, the vibrating diaphragm is disposed on the first chamber, the second substrate has a second chamber, one side of the backplate is disposed on the second chamber, and the other side of the backplate is disposed on the vibrating diaphragm, so that the second substrate is combined with the first substrate. In addition, the backplate has multiple sound holes, and the accommodating slot is disposed between the first substrate and the second substrate to form a space between the vibrating diaphragm and the backplate.

Abstract: An optical disk transport device for an optical disk playing device includes a delivery roll and an optical disk guiding device located at the optical disk insertion inlet, a pair of detection bars provided with detection parts contacting the periphery of the optical disk inserted from the optical disk insertion inlet, and the detection bars being capable of freely rotating around respective rotary pivots. The device further includes a linkage plate for controlling the pair of detection bars to move together, an elastic part making the detection bars rotate according to the direction that makes the detection parts contact the periphery of the optical disk, and an optical disk baffle for stopping the transport of the small diameter optical disk as the center of the small diameter optical disk passes the center of the plummer.

Abstract: An optical disk loading final position detection device includes an optical disk guiding device, a delivery roll, a pair of detection bars provided with detection parts capable of freely rotating around respective rotary pivots, a support part, the middle of the support part being provided with an assorted part interacting with the detection bar, and a trigger bar. One end of the trigger bar is provided with a contact part for contacting the periphery of an optical disk, and the other end being connected to a control part. When the detection bars are rotating, the support part makes the trigger bar move towards the direction directly facing the central line, so, the trigger bar will not extrude out of the maximum outer diameter of the optical disk along the optical disk transport direction, so as to implement miniaturizing the optical disk playing device.

Abstract: An optical disk player, which comprises: a shell, a plummer fixed in the shell, an optical disk transport mechanism, a guiding mechanism, an optical disk loading final position detection mechanism, and a control part; the shell is 80-90 millimeters wide at the optical disk insertion direction; the detection parts of the guiding mechanism are located between the plummer and the delivery roll of the transport mechanism; the optical disk loading final position detection mechanism comprises a support part and a trigger bar; one end of the support part is rotatablely fixed to the upper base plate near the detection part of one detection bar, and its middle is provided with an assorted part interacting with the detection bar; the middle of the trigger bar is rotatablely fixed to the free end of the support part, of which one end is provided with a contact part for contacting the periphery of an optical disk, and the other end is connected to the control part.

Abstract: A compact disc centering apparatus of a compact disc player includes carrying rollers which are disposed within a compact disc entry on the opposite sides thereof and a compact disc guiding; a pair of detection rods capable of synchronized rotating, which is disposed between a support plate and the compact disc entry. The apparatus also includes a control device and a trigger device, wherein, an engaging portion is disposed on the control device and extends along the direction in which the control device moves, and an engaged portion is disposed on the trigger device and engages with the engaging portion. When the engaged portion is located in the engaging portion, the contact between the engaging portion and the engaged portion makes the trigger device rotate and stop at a position such that the center of the compact disc is coincident with the center of the support plate.

Abstract: An optical disk transport device for an optical disk player includes a carrying roller, an optical disk guiding part located above the carrying roller, an elastic part for pressing the carrying roller towards the optical disk guiding part, and a motor for driving the carrying roller to rotate. The roll body of the carrying roller is of a bipyramidal structure with the diameter gradually decreasing from the two ends to the middle. The positions on the optical disk guiding part opposite to each pyramid of the carrying roller are provided with at least one rotatable driven roller. The ends adjacent to the middle of the carrying roller of each driven roller slant upwards, so as to make the driven rollers only contact the outer margin of the optical disk when the optical disk is inserted.

Abstract: An optical disk loading final position detection device comprises: an optical disk guiding device and a delivery roll located at the optical disk insertion inlet; a pair of detection bars provided with detection parts contacting the periphery of the optical disk of big diameter or small diameter inserted from the optical disk insertion inlet, and the detection bars being capable of freely rotating around respective rotary pivots; a support part, one end of the support part being rotatablely fixed to the upper base plate near the detection part of one detection bar, the middle of the support part being provided with an assorted part interacting with the detection bar; and a trigger bar, the middle of the trigger bar being rotatablely fixed to the free end of the support part, one end of the trigger bar being provided with a contact part for contacting the periphery of an optical disk, and the other end being connected to a control part.