Abstract: An antenna device includes an enclosure defining a receiving compartment and having a back forming a mounting seat for mounting to a fixture and an end forming a connector for connection with a coaxial cable. A reflection case, which is received in the enclosure, includes reflection plates set around the case and has a bottom stamped to form partially cut tabs that are bent upward by an angle of approximately 90 degrees. The diamond-shaped antenna is composed of two quadrilateral antenna boards received in the reflection case and fixed to the bent tabs and has a central portion to which a waveguide is coupled for connection with the connector of the enclosure through a coaxial cable. The enclosure is closed by a cover plate to protect the diamond-shaped antenna from direct exposure to severe weather.

Abstract: The planar multi-directional antenna mainly contains a flat casing and a double-layered circuit board housed inside the casing. The circuit board's two major sides are patterned in a symmetrical manner and traces are routed and extended along the circumference of the circuit board for producing multi-directional reception field pattern. A raised metallic plate is configured in the center on a first major side for avoiding the coupling effect from current converging in the center and for overcoming the dielectric loss by using air. A ferrite core is configured at the feeding terminal of the antenna as a means of impedance conversion. A SMD inductor and a SMD capacitor are provided on the other major side for increasing the antenna's capability of receiving signals of larger wavelength.

Abstract: A portable electronic apparatus including a case, a speaker, a sound box cover, a first circuit board and a second circuit board is provided. The case has a sound hole and a plurality of limiting portions disposed around the sound hole. The speaker corresponding to the sound hole is disposed in the case. The sound box cover covers the speaker to define a back sound chamber among the sound box cover, the case and the speaker. The first circuit board is disposed in the case. The second circuit board with a first surface, a second surface and a plurality of pads is disposed on the sound box cover. The second circuit board is exposed on the sound box cover with the first surface. The second circuit board electrically connects to the first circuit board and the speaker through the pads respectively disposed on the first and the second surface.

Abstract: The self-making bread method includes: weighing a certain amount of ingredients according to a bread recipe and placing them in a bread ingredient box; putting the bread ingredient box into the corresponding containing region of the top portion of the bread machine; using the jagged ring of the bottom portion of said containing region to open the thin film of the bottom portion of the bread ingredient box, so the ingredients will fall into the mixing container in the bread machine; controlling the water delivering mechanism inside the bread machine to deliver a certain amount of water into said mixing container; starting the mixing device inside the bread machine, which mixes the ingredients into an appropriate dough; turning off the mixing device; energizing the electric heating tube in the bread machine, to bake the dough inside the mixing container into bread.

Abstract: An optical projector includes a casing, a partition element, an optical projection module and a main board. The casing includes a main body, a first cover and a second cover. The partition element is disposed at the main body, and the first cover is detachably disposed on the main body. The first cover, the partition element and the main body together define a first accommodating space. The second cover is detachably disposed on the main body. The second cover, the partition element and the main body together define a second accommodating space. The optical projection module is disposed in the first accommodating space and the main board is disposed in the second accommodating space.

Abstract: A fixing structure is provided. The fixing structure comprises a first housing, a rotating shaft, a second housing and a third housing. The first housing having an accommodating portion, and the rotating shaft is disposed in the accommodating portion. The second housing is disposed on one side of the first housing. The third housing is disposed on the other side of the first housing and covering the rotating shaft and the second housing. The shaft body is wedged into a shaft bore, and the shaft shoulder is wedged into the second housing. A third housing is against one side of the shaft body, and covering the rotating shaft and the second housing. The shaft shoulder is firmly against the second housing. Thus, it does not need any tool to assemble and disassemble.

Abstract: A multi-directional panel antenna is provided for the reception of TV broadcast VHF and UHF signals. The panel antenna's circuit board has its current path substantially covers the surface of the circuit board so as to produce multi-directional reception patterns. An iron-core winding is configured at a feed-in terminal of the panel antenna for impedance matching and signal concentration. The panel antenna also uses air to reduce dielectric loss. A MMIC signal amplification device is provided for enhanced gain. Ceramic capacitors are provided to increase the reception wavelength of the panel antenna so that it falls within a lower section of the VHF band.

Abstract: The outdoor multi-channel antenna mainly contains a case, a reflection box, a reception plate, and a cover. The reflection box is placed inside the case. The reception plate has an antenna waveguide element and is placed inside the reflection box. The waveguide element is fixed and positioned by a support seat. The reception plate contains a curved piece and two wing pieces bended 90 degrees downward from the curved piece. The waveguide element is attached to a back side of the reception plate and is connected via a coaxial cable to a terminal threading through the through openings of the reflection box and the case. The cover tightly seals the case by a ring washer sandwiched therebetween and a waterproof plug sleeves over the terminal.

Abstract: The planar multi-directional antenna mainly contains a flat casing and a double-layered circuit board housed inside the casing. The circuit board's two major sides are patterned in a symmetrical manner and traces are routed and extended along the circumference of the circuit board for producing multi-directional reception field pattern. A raised metallic plate is configured in the center on a first major side for avoiding the coupling effect from current converging in the center and for overcoming the dielectric loss by using air. A ferrite core is configured at the feeding terminal of the antenna as a means of impedance conversion. A SMD inductor and a SMD capacitor are provided on the other major side for increasing the antenna's capability of receiving signals of larger wavelength.

Abstract: An antenna device includes an enclosure defining a receiving compartment and having a back forming a mounting seat for mounting to a fixture and an end forming a connector for connection with a coaxial cable. A reflection case, which is received in the enclosure, includes reflection plates set around the case and has a bottom stamped to form partially cut tabs that are bent upward by an angle of approximately 90 degrees. The diamond-shaped antenna is composed of two quadrilateral antenna boards received in the reflection case and fixed to the bent tabs and has a central portion to which a waveguide is coupled for connection with the connector of the enclosure through a coaxial cable. The enclosure is closed by a cover plate to protect the diamond-shaped antenna from direct exposure to severe weather.

Abstract: An accurate positioning system installed in a vehicle is disclosed to include a GPS, a Gyro sensor, a vehicle speedometer, and a controller. When the GPS outputs a next GPS coordinates, the controller calculates a next reference coordinates subject to the azimuth signal outputted from the Gyro sensor and the vehicle speed signal outputted from the vehicle speedometer and calculates the distance between the next GPS coordinates and the next reference coordinates, and then assigns the GPS coordinates to be the next accurate coordinates for output when the distance between the next GPS coordinates and the next reference coordinates surpasses a reference distance, or assigns the next reference coordinates to be the next accurate coordinates for output when the distance between the next GPS coordinates and the next reference coordinates is smaller than or equal to the reference distance.

Abstract: An in-vehicle computer system includes a host computer, a mode switch and a backup microprocessor. When the host computer functions ordinarily, the mode switch is in a regular mode as a default, and the host computer uses various graphical interfaces on a display to control the operations of electronic devices implemented in a vehicle. The electronic devices can include a digital versatile disc (DVD) player, an MP3 player and a global positioning system (GPS). When a total failure of the computer occurs, the mode switch is switched to a backup mode, and the host computer is replaced by the backup microprocessor to control a backup graphical processor to extract backup graphical interfaces from a backup storage medium for graphical processing and further presentation on the display. Thus, a driver can continuously control the corresponding electronic devices through the backup graphical interfaces on the display.

Abstract: In a vehicle anti-theft system, a vehicle-mounted mainframe downloads a sole identification code, serving as a control identification code, and transfers the sole identification code into a part as a part identification code. The vehicle-mounted mainframe determines if the control identification code is obtained when the vehicle is activated. If yes, the vehicle-mounted mainframe sends a request command to the part to obtain the part identification code. The vehicle-mounted mainframe determines if the part identification code meets with the control identification code. If yes, the vehicle-mounted mainframe produces a normal operation signal to enter a normal operational mode and feedbacks the identification code to the customer service center. The customer service center checks with a database for stolen events.

Abstract: An electrical device includes a housing, a cover removably positioned on the housing, and a releasing mechanism. The releasing mechanism includes a main body including a pusher, wherein the main body is movably positioned on the housing and is movable between a locked position and a released position, and the pusher is configured to slidably engage with the cover and gradually disengage the cover from the housing when the main body moves toward the released position.

Abstract: A multi-stage sliding structure of a handheld device includes a first sliding block, a second sliding block, and an engagement structure. The first sliding block has at least one first groove for containing a first magnetic strip. The second sliding block has at least one second groove. The second groove is for containing at least two second magnetic strips which are continually spaced apart in the second groove, and the directions of magnetic poles of the second magnetic strips correspond with directions of respective magnetic poles of the first magnetic strip. The engagement structure comprises two structures disposed near outer sides of the first and the second grooves respectively, and is for enabling the first and the second sliding blocks to engage with each other and slide with respect to each other.

Abstract: A portable electronic apparatus including a case, a speaker, a sound box cover, a first circuit board and a second circuit board is provided. The case has a sound hole and a plurality of limiting portions disposed around the sound hole. The speaker corresponding to the sound hole is disposed in the case. The sound box cover covers the speaker to define a back sound chamber among the sound box cover, the case and the speaker. The first circuit board is disposed in the case. The second circuit board with a first surface, a second surface and a plurality of pads is disposed on the sound box cover. The second circuit board is exposed on the sound box cover with the first surface. The second circuit board electrically connects to the first circuit board and the speaker through the pads respectively disposed on the first and the second surface.

Abstract: A vehicle navigation system with a display correction and the display correction method thereof, which first extracts a current display location and corresponding road links, next extracts a next vehicle location and selects all road links ranging within 25 meters from the next vehicle location to generate a first set of road links, next generates a second set of road links from the first set of road links based on an angle of driving direction generated by the gyroscope, next computes vertical distances from the next vehicle location to the second set of road links and selects a road link with a shortest vertical distance, and sets a projection point of the next vehicle location on the road link with the shortest vertical distance to become a next corrected location and displays the vehicle sign on the display screen at a next display location corresponding to the next corrected location.

Abstract: A vehicle navigation control system and method in which the system includes a communication bus, a navigation system, a display device, and a vehicle control computer. The navigation system is connected to the communication bus to provide navigation information. The display device displays a human machine interface and one item of prompt information. The vehicle control computer controls vehicle devices of the vehicle by means of the human machine interface displayed on the display device, fetches the navigation information from the navigation system via the communication bus, converts the fetched navigation information into an item of prompt information, and outputs the converted prompt information to the display device for display during display of the human machine interface.

Abstract: A detection device is mounted in a projector for detecting relations between an object and the projector. The detection device includes a detecting switch, a connector and a detecting circuit. When the object is placed into the detecting switch, the detecting switch is in an off state. When the object is withdrawn from the detecting switch, the detecting switch is in an on state. The connector is electrically connected to the detecting switch. The detecting circuit is electrically connected to the connector for activating the projector to be operated in a first mode in response to the off state of the detecting switch and activating the projector to be operated in a second mode in response to the on state of the detecting switch. The first mode and the second mode are associated with the temperature inside the projector.

Abstract: An optical projector includes a casing, a partition element, an optical projection module and a main board. The casing includes a main body, a first cover and a second cover. The partition element is disposed at the main body, and the first cover is detachably disposed on the main body. The first cover, the partition element and the main body together define a first accommodating space. The second cover is detachably disposed on the main body. The second cover, the partition element and the main body together define a second accommodating space. The optical projection module is disposed in the first accommodating space and the main board is disposed in the second accommodating space.