Patent application number | Description | Published |
20090289140 | MAGNETIC COIL FIXING DEVICE AND AUTOWINDER - A magnetic fixing device for fixing a magnetic coil to a rotor of an autowinder includes a first clip element and a second element. The first clip element is disposed on the rotor of the autowinder, and the second clip element corresponds to the first clip element for cooperatively clipping the magnetic coil by magnetic force. | 11-26-2009 |
20100014176 | FLAT SPRING PLATE AND LENS ACTUATOR WITH SAME - A flat spring plate includes an outer closed-loop frame having a plurality of evenly spaced outer connection parts and a plurality of elongated side frame members each interconnected between the two corresponding adjacent outer connection parts, an inner closed-loop frame concentric with and surrounded by the outer frame, and a plurality of spring parts interconnected between the respective outer connection parts of the outer frame and the respective inner connection parts of the inner frame. The inner frame includes a plurality of evenly spaced inner connection parts. Each of the spring parts includes a U-shaped part adjacent to the corresponding outer connection part, a curved part adjacent to the corresponding inner connection part, and an elongated intermediate part interconnected between the U-shaped part and the curved part. Each elongated intermediate part is substantially parallel to the corresponding side frame member of the outer frame. | 01-21-2010 |
20100128372 | LENS ACTUATOR - An exemplary lens actuator includes a lens barrel, a plurality of convex stages and a plurality of stop mechanisms protruding out from a first end surface of the lens barrel, a coil wrapped around the lens barrel, a plurality of magnets, a bracket, and a resilient plate. The resilient plate includes an outer frame, an inner frame substantially coaxial with the outer frame, and a plurality of spring portions interconnected between the outer frame and the inner frame. The outer frame of the resilient plate is fixed on the first side of the bracket. The inner frame of the resilient plate is fixed on the plurality of convex stages. The plurality of stop mechanisms faces a surface of the outer frame and is configured for limiting a maximum travel of the lens barrel. | 05-27-2010 |
20110058267 | VOICE COIL MOTOR AND CAMERA MODULE USING THE SAME - A voice coil motor includes a movable member, a base, and a first elastic member. The movable member comprises a barrel, and a plurality of fixing posts protrudes from the bottom of the barrel. The base defines a through hole, a plurality of recessed portions, and a plurality of concavities. The axis of through hole is coaxial with the barrel. The recessed portions surround the aperture. Each of the recessed portions is arranged between two concavities. The depth of the recessed portion is less than the height of the fixing post, and the depth of the concavity is larger than that of the recessed portion. The elastic member comprises an elastic portion, which defines a first fixing hole. The fixing post extends through the first fixing hole and is received in the recessed portion. | 03-10-2011 |
20110163196 | COIL RACK FIXING DEVICE - A coil rack fixing device for fixing a coil rack to a rotor of a winding machine, includes a first member and a second member. The first member is configured for mounting on the rotor. The first member includes a support shaft coaxial to the rotor. The support shaft has a magnetic attracting portion positioned on a free end thereof. The second member includes a body and a magnet. The body defines a through hole thereof. The through hole receives the support shaft. The magnet is received in the through hole and capable of moving along the through hole relative to the magnetic attracting portion. | 07-07-2011 |
20110234483 | GAME CONTROLLER GLOVE - A game controller glove includes a main body, a MEMS, and a power supply. The main body includes five finger portions for receiving fingers of a game player's hand. The MEMS includes finger-movement sensors, MEMS sensors, and a processor. The finger-movement sensors are positioned at the finger portions and used for detecting the movements of the fingers. The MEMS sensors are connected to the corresponding finger-movement sensors and used for sensing pressures applied by the corresponding finger-movement sensors, and converting the pressure into electrical signals. The processor is electrically connected to the MEMS sensors and used for obtaining the electrical signals and then restores the electrical signals back to pressure values. The power supply is used for supplying electrical power to the processor. | 09-29-2011 |
20110301519 | ORTHOPEDIC ADJUSTMENT DEVICE - An exemplary orthopedic adjustment device includes an orthopedic appliance, an adjustment unit module and a pressure control module. The appliance is configured for supporting a human spine. The adjustment unit module includes adjustment units. Each of the adjustment units includes a chamber, a pressure sensor and a pump. The pressure sensor and the pump are arranged in the chamber. Each of the pressure sensors is configured for detecting a pressure of each chamber corresponding thereto. Each of the pumps is configured for adjusting the pressure of each chamber corresponding thereto. The pressure control module is configured for receiving pressure signals from the pressure sensors of the chambers and providing pressure adjusting signals to the pumps to adjust the pressures of the chambers. | 12-08-2011 |
20120307140 | VOICE COIL MOTOR AND RELATED IMAGE CAPTURING MODULE - A voice coil motor includes a movable receiving cylinder having protrusions formed at an end; a wire coil surrounding the receiving cylinder; a hollow fixing frame receiving the receiving cylinder and the wire coil; magnetic members fixedly received in the fixing frame, top and bottom elastic members. The top elastic member includes a peripheral portion and a resilient central portion, the central portion having a central opening and cutouts. The protrusions of the receiving cylinder are engaged in the cutouts. The peripheral portion is fixed at a lower position than the central portion, thereby forming an elastic force applied to the receiving cylinder when no current is applied to the wire coil. The bottom elastic member is connected to the receiving cylinder and the fixing frame, and is in an undeformed state when no current is applied to the wire coil. | 12-06-2012 |
20130010378 | VOICE COIL MOTOR AND CAMERA MODULE USING THE SAME - A voice coil motor for driving a lens group includes a housing, a first cover, a second cover, a movable member, and a plurality of magnets. The housing is a hollow and includes a top plate and four sidewalls protruding from the top plate. The movable member is movably received in a space defined by the housing and the first and second covers, and includes a barrel for receiving and being connected to the lens group, and a coil arranged around the barrel. The magnets are arranged between the housing and the movable member, stayed in contact with the sidewalls, and drive the movable member and the lens group to move in the housing when a current is supplied to the coil. | 01-10-2013 |
20130033124 | VOICE COIL MOTOR - A voice coil motor includes a housing, a movable barrel, at least two magnetic elements, and a coil received in the housing. The housing defines an accommodating room, and includes a top panel, at least two peripheral panels perpendicular to the top panel, and at least two fixing plates extending in the accommodating room. The at least two magnetic elements are surrounding the movable barrel. Each magnetic element has a first magnetic pole aligned with a corresponding fixing plate and a second magnetic pole fixed on the housing. The coil is sleeved on the movable barrel and is between the fixing plates and the first magnetic poles. | 02-07-2013 |
20130038776 | IMAGING DEVICE - An imaging device includes an auto-focusing actuator, an image sensor, and a transparent dust-proofing member. The auto-focusing actuator includes a housing. The housing includes a top surface and an opposite bottom surface, and defines a through hole extending from the top surface to the bottom surface. A number of positioning rods extend from the top surface and cooperatively define a fixing space. The image sensor is mounted on the bottom surface of the housing and aligned with the through hole. The transparent dust-proofing member is mounted in the fixing space and seals the through hole. | 02-14-2013 |
Patent application number | Description | Published |
20090121674 | CHARGING DEVICE WITH BOUNDARY MODE CONTROL - A charging device with boundary mode control is disclosed. The charging device includes a transformer, a power switch, a detection circuit and a pulse-width modulation (PWM) controller. The power switch is electrically connected to one end of a primary-side winding of the transformer. The detection circuit is electrically connected to the primary-side winding and the power switch. The detection circuit detects the resonance of the parasitic capacitance of the power switch, thereby generating a detection signal for boundary mode control. The PWM controller generates a pulse-width modulation signal for driving the power switch, and turns on the power switch according to the detection signal. | 05-14-2009 |
20090128209 | PULSE WIDTH MODULATION CONTROL CIRCUIT APPLIED TO CHARGE OUTPUT CAPACITOR - A pulse width modulation (PWM) control circuit is applied to a power converter with a charging capacitor. The PWM control circuit includes a PWM signal generator, a first comparator, and a reference voltage modulator. A PWM signal generator generates a PWM signal to control a power switch in the power converter. Two input terminals of the first comparator respectively receive a first reference voltage and a sensing voltage, which is proportional to a primary-side current of a transformer. When the power switch is turned on and the sensing voltage rises to the level of the first reference voltage, the first comparator outputs a first control signal to the PWM signal generator. Then, the PWM signal generator outputs a signal to turn off the power switch. The reference voltage modulator outputs the first reference voltage according to a feedback voltage relative to the output voltage of the power converter. | 05-21-2009 |
20090147548 | CONTROL CIRCUIT FOR ADJUSTING LEADING EDGE BLANKING TIME AND POWER CONVERTING SYSTEM USING THE SAME CONTROL CIRCUIT - A control circuit for adjusting leading edge blanking time is disclosed. The control circuit is applied to a power converting system. The control circuit adjusts a leading edge blanking time according to a feedback signal relative to a load connected to the output terminal of the power converting system. An over-current protection mechanism of the power converting system is disabled within the leading edge blanking time. | 06-11-2009 |
20100026268 | CONTROL METHOD FOR ADJUSTING LEADING EDGE BLANKING TIME IN POWER CONVERTING SYSTEM - A control method for adjusting leading edge blanking time in a power converting system is disclosed. The control method includes: receiving a feedback signal relative to a load connected to an output terminal of the power converting system; determining the leading edge blanking time to be a first value if the feedback signal has a magnitude about a first voltage; and determining the leading edge blanking time to be a second value if the feedback signal has a magnitude about a second voltage, wherein the first value is smaller than the second value, and the first voltage is greater than the second voltage. | 02-04-2010 |
20100142231 | Control Methods and Integrated Circuits for Controlling Power Supply - Integrated circuits for controlling power supplies and relevant control methods are disclosed. A controller generates a control signal to control a power switch. A feedback pin of an integrated circuit receives an external feedback signal representing an output voltage signal of a power supply. Controlled by the control signal, a transferring circuit transfers the feedback signal to the controller when the power switch is off. When the power switch is on, a clamping circuit clamps the voltage of the feedback signal at a predetermined value to avoid the controller from being influenced by the feedback signal. | 06-10-2010 |
20120235651 | POWER SUPPLIES AND RELATED METHODS CAPABLE OF REDUCING OUTPUT VOLTAGE RIPPLE - Power supplies and related methods capable of reducing output voltage ripple. A power supply provides an output voltage to a load and controls the output voltage to approach a target voltage. The output voltage is compared with the target voltage to generate a control signal, which controls an output current of the power supply. When the control signal causes an increase in the output current, the target voltage is reduced. | 09-20-2012 |