Abstract: A chip includes a core circuit, a main electrostatic discharge immunizing circuit, and a secondary electrostatic discharge immunizing circuit. The secondary electrostatic discharge immunizing circuit is disposed beneath a core power ring formed between the core circuit and the main electrostatic discharge immunizing circuit for reaching the aim of protecting the core circuit from damage by electrostatic discharges without area penalty of the chip. Both the main electrostatic discharge immunizing circuit and the secondary electrostatic discharge immunizing circuit include a power clamp and a plurality of current limiters, and keep electrostatic currents from reaching the core circuit with the aid of the power clamp.

Abstract: A gate driver applied to a LCD apparatus is disclosed. The gate driver includes a pulse modulation controlling module. When a pulse modulation controlling signal received by the pulse modulation controlling module is changed from a high level to a low level, the pulse modulation controlling module closes an active switch according to the pulse modulation controlling signal, so that a high level power signal will begin discharging to have a modulated pulse form.

Abstract: A moving base for robotic vacuum cleaner includes a base; a motor mounted in a motor chamber on the base to alternatively drive a drive shaft thereof to rotate clockwise or counterclockwise; a primary wheel fixed to and rotating along with the drive shaft of the motor; a clutch assembly connected to the primary wheel; an axle connected at an end to the clutch assembly, so as to be driven by the primary wheel to rotate when the drive shaft of the motor rotates clockwise, or to disengage from the driving by the primary wheel when the drive shaft of the motor rotates counterclockwise: and a secondary wheel connected to another end of the axle to rotate along with the axle. Since only one motor is needed to control a moving direction thereof, the robotic vacuum cleaner can have effectively reduced manufacturing cost and overall volume.

Abstract: A switching mechanism for a camera includes: a control unit; a driving device coupled with and actuated by the control unit; a first gear set coupled with the driving device; a second gear coupled with the first gear set and centrally provided with a rotary shaft having a shaft hole formed with threads; a spindle being female-connected to the shaft hole and which has an axial surface formed with outer threads corresponding to the threads of the shaft hole, thus allowing the second gear to move along and relative to the spindle; and a translation member positioned perpendicular to the spindle and provided with a rack for engaging with the second gear and thus driving the translation member to move perpendicular to the spindle. The second gear drives or does not drive the rack as the engagement therebetween is made or broken.

Abstract: A hand tool with an illuminating device includes a handle having a receiving space defined therein. A holding seat is received in the receiving space. The holding seat has a battery chamber defined therein, a shank chamber defined therein, and a plurality of bit holders formed thereon. A tool set is received in the holding seat. The tool set includes a plurality of tool bits detachably held in the bit holders and a tool shank detachably received in the shank chamber. The tool shank has a coupling portion extending therefrom and a connecting portion formed thereon for detachably connecting to any one of the tool bits. An illuminating device is received in the receiving space and electrically connected to the holding seat. The illuminating device has a coupling slot defined axially therein for engaging with the coupling portion of the tool shank.

Abstract: A moving base for robotic vacuum cleaner includes a base; a motor mounted in a motor chamber on the base to alternatively drive a drive shaft thereof to rotate clockwise or counterclockwise: a primary wheel fixed to and rotating along with the drive shaft of the motor; a clutch assembly connected to the primary wheel; an axle connected at an end to the clutch assembly, so as to be driven by tile primary wheel to rotate when the drive shaft of the motor rotates clockwise, or to disengage from the driving by the primary wheel when the drive shaft of the motor rotates counterclockwise: and a secondary wheel connected to another end of the axle to rotate along with the axle. Since only one motor is needed to control a moving direction thereof, the robotic vacuum cleaner can have effectively reduced manufacturing cost and overall volume.

Abstract: For connecting multiple PC boards to form a PCB pane, a PCB connector is disclosed include a bearing strip, which has locating grooves spaced along the length, upright pins disposed in the locating grooves and inserted through respective through holes on connection portions of the PC boards to be connected and studs spaced along the length and disposed beyond the locating grooves, and a holding down strip, which has locating grooves corresponding to the locating grooves of the bearing strip for receiving the connection strips of the PC boards, pin holes respectively press-fitted onto the upright pins and sockets respectively fastened to the studs of the bearing strip.

Abstract: A switching mechanism for a video camera includes: a control unit; a driving device connected with and controlled by the control unit; a first belt pulley connected with the driving device; a second belt pulley smaller than the first belt pulley in diameter; a belt looped around the first and second belt pulleys for power transmission, and including a first protuberance; a translation member provided with a second protuberance so that through a loose fitting connection between the two protuberances, the translation member is driven to move; and a positioning element having a positioning plane, at least two inclines, and at least two top surfaces, wherein the positioning plane and the at least two inclines are designed to contact the second protuberance of the translation member alternately so as to restrict and reposition the translation member.

Abstract: A switching mechanism for a camera includes: a control unit; a driving device coupled with and actuated by the control unit; a first gear set coupled with the driving device; a second gear coupled with the first gear set and centrally provided with a rotary shaft having a shaft hole formed with threads; a spindle being female-connected to the shaft hole and which has an axial surface formed with outer threads corresponding to the threads of the shaft hole, thus allowing the second gear to move along and relative to the spindle; and a translation member positioned perpendicular to the spindle and provided with a rack for engaging with the second gear and thus driving the translation member to move perpendicular to the spindle. The second gear drives or does not drive the rack as the engagement therebetween is made or broken.

Abstract: For connecting multiple PC boards to form a PCB pane, a PCB connector is disclosed include a bearing strip, which has locating grooves spaced along the length, upright pins disposed in the locating grooves and inserted through respective through holes on connection portions of the PC boards to be connected and studs spaced along the length and disposed beyond the locating grooves, and a holding down strip, which has locating grooves corresponding to the locating grooves of the bearing strip for receiving the connection strips of the PC boards, pin holes respectively press-fitted onto the upright pins and sockets respectively fastened to the studs of the bearing strip.

Abstract: A switching mechanism for a camera device includes a driving device, a first screw bar connecting to the driving device, a second screw bar connecting to the first screw bar, and a lead screw having an end coupled with the second screw bar. The first screw bar is driven by the driving device via a screw thread thereof, and the second screw bar is driven by the first screw bar via a screw thread thereof, thereby driving the lead screw for rotation. The screw nut is disposed on the lead screw and moved back and forth via the rotation of the lead screw. Two stop blocks disposed at two ends of the lead screw respectively are to limit two positions of the moved screw nut while the screw nut is moved beyond a threaded area of the lead screw, upon which time the screw nut is slightly engaged with the lead screw.

Abstract: An ESD protection device includes a substrate of a first conductivity type, a well region of a second conductivity type, a first doped region of the second conductivity type, a second doped region of the first conductivity type, a third doped region of the second conductivity type, a fourth doped region of the first conductivity type. The well region is configured in the substrate. The first doped region is configured in the well region. The second doped region is configured in the well region and surrounding the first doped region. The third doped region is configured in the well region and surrounding the first doped region and the second doped region. The fourth doped region is configured in the well region and under the first doped region and the second doped region. The fourth doped region is coupled with the first doped region and with the second doped region, respectively.

Abstract: A filler circuit cell is disclosed. The filler circuit cell includes a decoupled capacitor, a tie low circuit and a tie high circuit. The decoupled capacitor includes a first NMOS transistor and a first PMOS transistor, in which the source/drain of the first NMOS transistor is connected to a second voltage source and the source/drain of the first PMOS transistor is connected to a first voltage source. The tie low circuit includes a second NMOS transistor and a second PMOS transistor and the tie high circuit includes a third NMOS transistor and a third PMOS transistor.

Abstract: An antenna includes a first radiating conductor and a second radiating conductor. The first radiating conductor defines a first edge, a second edge and a lateral edge connecting the first edge and the second edge. The second radiating conductor has a main body spaced away from the second edge and connected to an end of the first radiating conductor far away from the lateral edge by a first connecting portion and extending towards the lateral edge. A free end of the main body bends to the second edge to form a second connecting portion spaced away from the lateral edge. A radiating end bends oppositely to the first radiating conductor from an end of the second connecting portion and is adjacent to the second edge. A feeding conductor and a grounding conductor are connected to an edge of the first radiating conductor different from the first edge and the lateral edge.

Abstract: A defect detection system and related method take advantage of multilevel detection technique for detecting defects on an integrated circuit. The defect detection system utilizes an analog-to-digital converter for converting an analog sensing signal into an output code having a plurality of bits. The defect detection methods include an open test method and a short test method. The open and short test methods both include a calibrating method and a testing method individually. The calibrating method functions to determine a preset reference voltage for the analog-to-digital converter based on a predetermined code. The testing method makes use of the preset reference voltage and the predetermined code for generating the output code having a plurality of bits. The output code is then utilized to determine whether or not there are open or short defects on the integrated circuit and to classify the defects.

Abstract: An antenna includes a first radiating conductor and a second radiating conductor. The first radiating conductor defines a first edge, a second edge and a lateral edge connecting the first edge and the second edge. The second radiating conductor has a main body spaced away from the second edge and connected to an end of the first radiating conductor far away from the lateral edge by a first connecting portion and extending towards the lateral edge. A free end of the main body bends to the second edge to form a second connecting portion spaced away from the lateral edge. A radiating end bends oppositely to the first radiating conductor from an end of the second connecting portion and is adjacent to the second edge. A feeding conductor and a grounding conductor are connected to an edge of the first radiating conductor different from the first edge and the lateral edge.