Abstract: Systems and methods for radial gesture navigation are provided. In example embodiments, user input data is received from a user device. The user input data indicates a continuous physical user interaction associated with a display screen of the user device. An initial point and a current point are detected from the user input data. A radius distance for a circle that includes the current point and is centered about the initial point is determined. An action is selected from among multiple actions based on the radius distance being within a particular range among successive ranges along a straight line that starts at the initial point and extends through the circle. Each range among the successive ranges corresponds to a particular action among the multiple actions. The selected action is performed in response to detecting a completion of the continuous physical user interaction.

Abstract: A remote control apparatus includes a casing with several function key modules, a setup key, two display units, two switching key modules corresponding to the display units, a function key module for setting remote control contents, and several switching keys. The casing has a circuit board and a control unit on the circuit board for connecting the display units, switching key modules, setup key and function key module. After the setup key is triggered to enter into a setting mode, the control unit displays the content information on the display unit and proximate to the switching key and records the content information and switching key code, and then defines and records the remote control content for each function key module corresponding to at least one switching key. Therefore, users can distinguish the switching keys, corresponding content information, and operation instructions of function key modules corresponding to different switching keys.

Abstract: An auxiliary power unit starting apparatus for a wheelchair comprises a housing, a plurality of triggers fixed in a triggering disc which is installed on an inner surface of the housing, a plurality of return springs biased between the housing and the driving disc for providing an elastic force for enabling the thick portion of the triggers to keep abutting against the deep end of the chutes, a hand wheel fixed to the driving disc, a switch is fixed to the stator for starting and stopping the motor and is to be triggered by the triggering disc. When the user rotates the hand wheel, the triggering disc will trigger the switch, and thus the motor will be started and will produce an auxiliary driving power for rotating the wheel of the wheelchair.

Abstract: A suspension structure for an electric wheelchair comprises a frame, two cantilevers, two drive wheels, two rollers, four wheel-mounting assemblies, two front wheel assemblies, two draglines and two rear wheel assemblies. When surmounting a barrier, the front wheel assemblies will pivot upward and press down the drive wheels through the cantilevers, thus improving the road holding performance of the drive wheels. In other words, the drive wheels and the front wheels can move interactively to surmount the barrier.

Abstract: A quick-release mechanism for an electric cart comprises: a rear frame, at both sides of a front edge of the rear frame is formed a locking slot, respectively; An upright column stands on the front edge of the rear frame and is located between the locking slots, the upright column provided with a locking portion, a gap is formed on the locking portion, the locking portion is further provided with a moveable hook, an end of which is installed in the gap of the locking portion, and another end of the moveable hook is located outside the gap of the locking portion; a front frame is provided at its rear edge with a cross bar, on the cross bar is provided an upright bar, both ends of the cross bar are locked in the locking slots at both sides of the rear frame, the upright bar is locked in the gap of the locking portion by the hook.

Abstract: The present invention relates to an auxiliary power unit starting apparatus for an electric bicycle, which can convert the rider's pedaling force into mechanical displacement at the time the bicycle is being pedaled, and then the mechanical displacement can start the auxiliary power unit of the electric bicycle. The device of the present invention has simple structure and small size, and it can be easily manufactured and assembled.

Abstract: A footrest platform is mounted to a chassis of a medical scooter. The footrest platform includes a net-like structure forming a plurality of interconnected apertures for ventilation and drainage of water and elimination of deposition of dust on the platform. The net-like structure forms a rough pattern, which helps preventing slipping. A plurality of ribs extends across the apertures for reinforcing the net-like structure. Resilient fastening strips are integrally formed on opposite sides of the net-like structure and are fit over the chassis of the medical scooter to secure the footrest platform to the chassis. An opening is defined in the platform for the extension of a steering shaft of the medical scooter therethrough.

Abstract: A quick-release mechanism for an electric cart comprising: a rear frame, at both sides of a front edge of the rear frame is formed a locking slot, respectively; An upright column stands on the front edge of the rear frame and is located between the locking slots, the upright column provided with a locking portion, a gap is formed on the locking portion, the locking portion is further provided with a moveable hook, an end of which is installed in the gap of the locking portion, and another end of the moveable hook is located outside the gap of the locking portion; a front frame is provided at its rear edge with a cross bar, on the cross bar is provided an upright bar, both ends of the cross bar are locked in the locking slots at both sides of the rear frame, the upright bar is locked in the gap of the locking portion by the hook.

Abstract: A joystick having pressure-activated switch mounted on an electronic device comprises an upper stick section, including a stick projected vertically, and a lower switch section, including a disk-shaped elastic piece having a convex top surface and a bottom surface corresponding to two contacts of a circuit board, so that user can manipulate stick to move cursor on display of a computer to a desired direction. In manipulating the stick, the elastic piece is pressed down to form a circuit by the contacts of the circuit board and the elastic piece for generating an input signal.

Abstract: A keyboard device includes a body containing a USB hub circuit and a keyboard circuit coupled to the hub circuit, a plurality of keys on the top of the body coupled to the keyboard circuit, a signal connection device on the body coupled to the hub circuit which is coupled to a first electronic device such that a key may be pressed to cause keyboard circuit to generate a signal which is sent to the first electronic device through the hub circuit and a signal connection device for processing, and at least one port on the body, each port having one end coupled to the hub circuit and the other end coupled to a second electronic device, such as a fingerprint reader, having an input section. When the second electronic device is coupled to the port, the input section of the second electronic device faces toward the user for ease of operation. Signals from the second electronic device may be sent to the first electronic device through the keyboard for processing.

Abstract: A keyboard device comprises a body including a hub circuit and a keyboard circuit coupled to hub circuit, a plurality of keys on the top of the body coupled to keyboard circuit, a signal connection means on the body coupled to hub circuit which is coupled to a first electronic means such that key may be pressed to cause keyboard circuit to generate a signal which is sent to first electronic means through hub circuit and signal connection means for being processed, and at least one port on the body each port having one end coupled to hub circuit and the other end coupled to a second electronic means. When second electronic means is coupled to port, the input means of second electronic means is faced toward user for ease of operation. Hence, signals from second electronic means may be sent to first electronic device through keyboard for being processed. Further, signals from first electronic means may be sent back to second electronic means through keyboard in response.

Abstract: The present invention relates to a method for detecting a minor variation of capacity via accumulation and a circuit for detecting the same. An oscillated pulse signal is generated by a delay accumulating circuit which includes a logic device having an open drain and a pull up resistance. The generated pulse signal is then sent to a microprocessor via a counter. The microprocessor will determine whether there is a variation of the frequency of the pulse signal. When a variation of capacity is detected at the detecting polar plate connected to the testing terminal of the delay accumulating circuit, the microprocessor picks up and determines this variation. The present invention can be applied to a plurality longitudinal and transverse polar plates. When a conductor is moved along the polar plates, the variation of the capacity resulting from the movement of the conductor above the static capacity detecting plate can be readily detected.

Abstract: A key switch including a key base having a circular upright bearing defining a first axial hole and a second axial hole around the first axial hole, a key cap having a first downward tube inserted into the first axial hole of the base and a second downward tube inserted into the second axial hole of the key base, a membrane circuit mounted on the flat base of the key base around the upright bearing, and a rubber mounted on the membrane circuit around the upright bearing of the key base to support the key cap above the key base and having a plunger portion spaced around the upright bearing of the key base and forced by the key cap to trigger the membrane circuit when the key cap is depressed, causing it to produce an electric signal.

Abstract: A joystick switch assembly including a housing with an open-top covered with a cover shell, a stick extended out of the cover shell and having a contact plate at the bottom received within the housing, a membrane circuit mounted around the stick and disposed between the cover shell and the contact plate of the stick, a conductive rubber mounted around the stick and disposed between the membrane circuit and the contact plate of the stick, wherein when the stick is moved within the housing, the circular contact plate is forced to press the conductive rubber and the membrane circuit, causing the membrane circuit to produce a signal output corresponding to the direction of the movement of the stick.

Abstract: A joystick switch assembly includes a U-shaped bottom shell covered with a cover shell, a joystick extending out of the cover shell and having a contact plate at the bottom received within the bottom shell, an upper membrane circuit and a lower membrane circuit mounted on the joystick inside the bottom shell and separated by the contact plate, an upper conductive rubber disposed between the contact plate and the upper membrane circuit, a lower conductive rubber disposed between the contact plate and the lower membrane circuit, wherein the contact plate has two convex portions on two opposite sides thereof. Moving the joystick causes the convex portions to squeeze the conductive rubbers which caused variations in impedances across impedance points on the membrane circuits, and therefore a signal output is varied in proportion to the amount and direction of the movement of the joystick.

Abstract: Disclosed is a key switch including a key base fitted into a key hole on the frame of a keyboard body, two contact plates fastened inside the key base, a key cap covered on the key base, and a slide supported above a vertical stub tube inside the key base by a spring and having a bottom rod inserted in the bore of the stub tube, wherein the bore of the stub tube pierces through the bottom of the key base, and the bottom rod of the slide is maintained in flush with the bottom of the key base before it is being pressed; each contact plate has a contact leg extended out of the key base through a respective side hole and then bent downwards by 90.degree. angle.