Abstract: The present invention discloses a synchronizing device for real-time USB audio data transmission, comprising: a first adder unit, a start-of-frame countdown unit, a phase-locked loop circuit, a frequency divider, a second adder unit, a third adder unit, a fourth adder unit, a frame calibrating register unit, a calibrating mapping unit and a calibrating pulse generating unit. A start-of-frame token sent by the USB host is used as a 1-ms reference cycle so that a high-frequency clock passes through the frequency divider to issue a first clock. The first clock signal has a constant clock number in a USB start-of-frame. The absolute time is automatically adjusted according to the duration of a previous start-of-frame. Therefore, asynchronicity of data transmission between the USB host and external devices can be overcome.

Abstract: The present invention provides a memory device and a method for accessing the memory device thereof. The memory device comprises an address encoding selector for selecting one of plurality of encoding circuits which encodes a first address into a second address, and a data decoding selector for selecting one of plurality of decoding circuits which decodes a first data corresponding to the second address into a second data and a non-volatile memory, coupled to address encoding selector and the data decoding selector, for storing the first data. The method for accessing the memory device comprises encoding a first address into a second address by an address encoding selector, and decoding a first data corresponding to the second address into a second data by a data decoding selector, wherein the first data being stored in the non-volatile memory.

Abstract: A folding super chair includes a front leg frame, a backrest, a backrest frame and a ganging device. The backrest frame has a contour corresponding to an upper inner portion of the front leg frame and an L-shaped cross section. The backrest frame is disposed between the front leg frame and the backrest. The backrest is placed on the backrest frame, which relieve stress. Thus, a ridge of the backrest does not deform, and the backrest is securely fixed on the folding super chair. The ganging device includes a main member, a slot fastener and a knob fastener. The main member has a front face, a rear face and two side faces. The rear face is larger than the front face, and therefore the two side faces form an included angle therebetween. When the folding super chairs are lined up and connected by the ganging device, the folding super chairs form a curved row.

Abstract: A cart for folding chairs includes a frame having a base and a plurality of frame pieces. The base includes at least two racks having a plurality of notches. The notches on the racks are corresponding to each other. Legs of the folding chairs are received in the notches, thereby holding the folding chairs vertical and closely adjacent to and parallel to each other. The base may further include at least two grooves to receive the racks. Moreover, for the convenience of loading and unloading the folding chairs, at least one of the frame pieces in a lengthwise direction is configured as a removable piece. The opposing frame pieces in a widthwise direction include pads to prevent the folding chairs from bumping into the frame pieces.

Abstract: A ganging device for connecting folding chairs and enlarging a gap between chairs includes a main member, a slot fastener and a knob fastener. A first frame side of the main member includes a fixing element and an engaging protrusion, and a second frame side of the main member includes a frame slot having a neck portion. The slot fastener, which includes an engaging slot having a neck portion, is mounted on a first side of the chair. The knob fastener, which has an engaging knob, is mounted on a second side of the chair. The fixing element and the engaging knob are engaged with the neck portions of the slot fastener and the main member, respectively. The engaging protrusion is fitted into the engaging slot. Therefore, the chairs are connected and a gap between connected chairs is provided to offer comfortable seating.

Abstract: A universal series bus (USB) frequency synchronous apparatus using a start of frame (SOF) signal generated by a master device to mark a reference interval is disclosed. The frequency synchronizing apparatus includes a frequency divider, a counter unit with a default pulse number, an arithmetic unit, and an adjusting unit. The frequency divider divides a high frequency signal by a variable frequency factor to generate a lock frequency signal. The counter is used to detect a pulse number of the lock frequency signal at a reference interval and obtain a pulse difference between the default pulse number and the detected pulse number of the lock frequency signal.

Abstract: Leg caps for a folding chair are mounted at lower ends of front legs and rear legs. A cross section of the front leg is the same as that of the rear leg. The leg includes a strip and two curved edges disposed at both sides of the strip respectively. The leg cap includes a pad and a slanted fixing portion disposed on a top of the pad. The fixing portion has a slit to divide the fixing portion into two sections. The top of the pad includes two cavities disposed at two sides of the fixing portion respectively. Lower ends of the curved edges of leg are fitted in and fully contacted with the cavities. Then, the fixing portion and the strip are riveted together, thereby connecting the leg cap with the leg.

Abstract: A parking information sensing device is disclosed. Each parking space in a parking lot is disposed with a parking information sensing device for detecting whether there is a car on the parking space. By means of a driving control circuit, the parking information sensing device drives a light emitting unit to emit a light and a reflecting element of the parking space is on a pathway of the light. The light is reflected by the reflecting element and then the reflected light passes an light sensing unit that detects the reflected light and generates a first sensing signal sent to the driving control circuit. Thus the driving control circuit judges there is no vehicle on the parking space. On the other hand, the judges there is a car on the parking space according to other sensing signal. Moreover, the parking information sensing device further includes a first transmitting/receiving unit that forms a wireless mesh network among parking information sensing devices.

Abstract: A leg frame of a chair having a decoration strip engaged therein includes the leg frame and the decoration strip. The leg frame includes a frame base, two curved ridges respectively disposed at both edges of the frame base, and an engaging groove formed between the frame base and the curved ridges. An inner lower side of each curved ridge is slanted to form an acute corner between the frame base and the curved ridge. The decoration strip corresponding to the engaging groove is fitted in the engaging groove. The decoration strip includes a bottom surface, two concave side surfaces, and two extended ribs respectively disposed between the bottom surface and the side surfaces. When the decoration strip is engaged with the leg frame, the ribs are respectively engaged with the acute corners and the side surfaces are respectively in contact with the curved ridges.

Abstract: A safety device for a folding chair includes a base, a handling piece, a pair of casings and a retaining piece. The retaining piece having a retaining hole is mounted on a bottom of a seat. The handling piece is pivotally connected inside the base, and the casing encloses the base and one of rear legs. The handling piece has a hook and a pressing portion at an upper end and a lower end respectively. When the seat is pressed down, the retaining piece glides between the hook and the rear leg. Then, the hook is engaged with the retaining hole. Therefore, the chair is locked in an open position and children's safety is ensured. When lifting the seat, the pressing portion is pressed to disengage the hook from the retaining piece. The chair is folded to a closed position.

Abstract: A folding chair with wheels includes a backrest, a seat, a front leg frame and a rear leg frame pivotally connected to both sides of the seat, a plurality of wheel assemblies and a plurality of connection blocks. Each of the front leg frame and the rear leg frame comprises a groove at a side surface thereof. The wheel assembly includes a wheel, a bearing and a threaded stem screwed into the connection block. The connection block has a plurality of connection screw holes, and is screwed onto the grooves of the front leg frame and the rear leg frame by bolts. The wheel assemblies connected with the front leg frame and the rear leg frame are disposed at the external side and the internal side of the folding chair, respectively. Therefore, the wheel assemblies do not interfere with each other when the chair is folded.

Abstract: A folding chair with wheels includes a backrest, a seat, a front leg frame and a rear leg frame pivotally connected to both sides of the seat, a plurality of wheel assemblies and a plurality of connection blocks. Each of the front leg frame and the rear leg frame comprises a groove at a side surface thereof. The wheel assembly includes a wheel, a bearing and a threaded stem screwed into the connection block. The connection block has a plurality of connection screw holes, and is screwed onto the grooves of the front leg frame and the rear leg frame by bolts. The wheel assemblies connected with the front leg frame and the rear leg frame are disposed at the external side and the internal side of the folding chair, respectively. Therefore, the wheel assemblies do not interfere with each other when the chair is folded.

Abstract: The present invention provides a memory device and a method for accessing the memory device thereof. The memory device comprises an address encoding selector for selecting one of plurality of encoding circuits which encodes a first address into a second address, and a data decoding selector for selecting one of plurality of decoding circuits which decodes a first data corresponding to the second address into a second data and a non-volatile memory, coupled to address encoding selector and the data decoding selector, for storing the first data. The method for accessing the memory device comprises encoding a first address into a second address by an address encoding selector, and decoding a first data corresponding to the second address into a second data by a data decoding selector, wherein the first data being stored in the non-volatile memory.

Abstract: The present invention relates to an adjustable crash trigger apparatus and a method thereof. The adjustable crash trigger apparatus according to the present invention includes a power supply module, an electronic accelerometer module, and a microcontroller module, which includes at least a real-time processing unit and a beacon-activated command unit. The apparatus and the method thereof are used to judge if a vehicle satisfies is about to collide. When it is judged true, an emergency transmitting device is activated, and the vehicle is located. In addition, the apparatus according to the present invention is electronic type and can judge three axes. The threshold acceleration value is adjusted depending on the type of the vehicle. Thereby, high sensitivity, low false alarm rate, and low failure rate can be achieved.

Abstract: A folding chair includes front and back legs, a cushion frame, a cushion embedded in the cushion frame and has a hard board having air vents, a sound absorbing foam, and a back cushion connected with the inner edge of the front leg and includes a second hard board. The hard boards have curved surfaces form fitting with the human body. A securing hook has a bent hook to clasp with the cushion frame. An inserting section can make the cushion and a support block to be connecting together. The curved surfaces of the cushion and the back cushion are form fitting with the human body, and the sound absorbing foam can reduce the sound sent out from the air vents when sitting. When a child's center of gravity on the chair is shifted to the back of the cushion, the cushion does not tilt backwards.

Abstract: An improved structure for a seat supporting frame of a chair includes a seat, front legs and back legs mounted on the two sides, a horizontal support having flattened ends and forming a bent section. The bent section is welded with the inner side of the front leg. The two ends of the bent corners are formed with a curved section. The sides of the seat has vertical support pieces, one end of which is set on the side of the seating frame, and the other end is connected to the front leg. A stop abutment, mounted on the lower section of the vertical support piece, is firmly abutted to the inner side of the curved section of the horizontal support, so as to prevent it from sliding and fracture. The horizontal support, the front leg, the vertical support piece, and the stop abutment are held together tightly.