Abstract: A positioning method for a sensor node is provided, and the method includes steps of: providing a first antenna having a first omnidirectional radiation pattern on a first plane; rotating the first antenna about an axis substantially parallel to the first plane; transmitting a wireless signal while the first antenna rotates about the axis for every a predetermined central angle; receiving the wireless signal at the sensor node; obtaining Received Signal Strength Indications (RSSIs) of the respective wireless signals; and determining a location of the sensor node according to the RSSIs.

Abstract: A pixel and an illuminating device thereof are provided. The pixel includes an organic light emitting diode (OLED), a transistor, a first switch, a second switch and a capacitor. One end of the OLED is electrically connected to a first voltage. A first source/drain of the transistor is electrically connected to a first potential point. The first switch is electrically connected between a second source/drain of the transistor and a second potential point, and is controlled by a first driving signal. The second switch is electrically connected between the second source/drain of the transistor and a gate of the transistor, and is controlled by a second driving signal. The capacitor is electrically connected between the gate of the transistor and a data line. The first driving signal and the second driving signal are used to alternately enable/disable the first and the second switches, so as to drive the pixel.

Abstract: A dual riding and driving tricycle in juxtaposing link comprises a primary bicycle body, an auxiliary cycle body and an articulation mechanism including a resilient tension mechanism. Primary bicycle body comprises a saddle sat by a primary rider, a front wheel controlled by a steering handle, a rear wheel and a pair of pedals to drive. Auxiliary cycle body comprises an auxiliary saddle sat by an auxiliary rider, an auxiliary wheel with a hub shaft located between hubs of front wheel and rear wheel in primary bicycle body and a pair of pedals to drive. Articulation mechanism comprises a left holding base, a right holding base and two parallel linking trough beams being disposed between both holding bases. Resilient tension mechanism comprises plural elastic elements connected on articulation mechanism respectively. Thereby, primary rider and auxiliary rider can independently tread respective pedals to drive synergistically.

Abstract: A dual riding and driving tricycle in juxtaposing link comprises a primary bicycle body, an auxiliary cycle body and an articulation mechanism including a resilient tension mechanism. Primary bicycle body comprises a saddle sat by a primary rider, a front wheel controlled by a steering handle, a rear wheel and a pair of pedals to drive. Auxiliary cycle body comprises an auxiliary saddle sat by an auxiliary rider, an auxiliary wheel with a hub shaft located between hubs of front wheel and rear wheel in primary bicycle body and a pair of pedals to drive. Articulation mechanism comprises a left holding base, a right holding base and two parallel linking trough beams being disposed between both holding bases. Resilient tension mechanism comprises plural elastic elements connected on articulation mechanism respectively. Thereby, primary rider and auxiliary rider can independently tread respective pedals to drive synergistically.

Abstract: The present invention provides a dual riding and driving tricycle in juxtaposing link, particularly for one that can be pedaled by two drivers in side-by-side coordination manner so that the drivers and tricycle will incline integrally without tumbling or overturning possibility; The main feature is that at least one articulation mechanism and a resilient tension mechanism are disposed between the primary bicycle body and auxiliary cycle body, wherein, said articulation mechanism serves in synergy an articulation parallelogram while said resilient tension mechanism counteract the deformation of the articulation mechanism to resume the stable equilibrium so that the integral of the primary bicycle body and auxiliary cycle body can automatically maintain harmonic coordination and stability when driving over bumpy road or corner turn.

Abstract: Sterilizable electronic video cameras for an endoscope are provided. The electronic video camera comprises an enclosure, a lens cell, a lens cell holder, an image sensor, a motorized focusing system, and switch control. The enclosure comprises a housing and a cover, the housing defining a cavity therein. The cover has a window disposed therein, the housing and cover adapted for hermetic coupling. The lens cell is slidably disposed in the lens cell holder. The image sensor is in optical communication with the lens cell and window. The motorized focusing system is adapted to axially reciprocally move the lens cell relative to the lens cell holder controlled by the switch. The switch control is activated external to the enclosure and is hermetically sealed therewith. The lens cell, lens cell holder, image sensor, and the motorized focusing system, as an assembly, are coupled to the cover and disposed within the cavity.

Abstract: The present invention discloses a background calibration system and method for calibrating the non-linear distortion of the amplifier. The calibration method in the present invention includes: generating random sequences and inputting the random sequences in different amount and different sets into an amplifier; amplifying the random sequences and detecting linear and non-linear coefficients; quantizing the output linear signal from the amplifier, and generating a digital output signal; multiplying the digital output signal to generate a high-order signal; generating an estimated non-linear error for the amplifier by multiplying the high-order signal with the estimated non-linear coefficient; adding the non-linear signal with the digital output signal to generate a linear output signal; calculating the random value from the parameter extractor to determine the occurrence of non-linear distortion in the circuit, and further adjusting the non-linear coefficient to calibrating the amplifier.

Abstract: A method for testing a data transfer rate of an electronic device includes: receiving data transmitted from the electronic device and converting the data into test data; analyzing the test data; encoding the analyzed data to generate output data; and displaying a state of the data transfer rate based on the output data.

Abstract: A system for testing hard disks includes a hard disk testing device and a computer. The computer has a mainboard and a key-press controller. The hard disk testing device connects with the mainboard and includes: a hard disk interface configured for connecting one or more hard disks to be tested to a south bridge of the mainboard; a key-press panel configured for connecting the key-press controller of the computer, and providing a hard disk testing control interface for users; and a hard disk testing unit configured for testing the one or more hard disks.

Abstract: The present invention discloses a background calibration system and method for calibrating the non-linear distortion of the amplifier. The calibration method in the present invention includes: generating random sequences and inputting the random sequences in different amount and different sets into an amplifier; amplifying the random sequences and detecting linear and non-linear coefficients; quantizing the output linear signal from the amplifier, and generating a digital output signal; multiplying the digital output signal to generate a high-order signal; generating an estimated non-linear error for the amplifier by multiplying the high-order signal with the estimated non-linear coefficient; adding the non-linear signal with the digital output signal to generate a linear output signal; calculating the random value from the parameter extractor to determine the occurrence of non-linear distortion in the circuit, and further adjusting the non-linear coefficient to calibrating the amplifier.

Abstract: A method for recognizing the position of a wireless controller is applied to an interactive gaming device including a wireless controller, a main apparatus and a host. The main apparatus includes a first ultrasonic receiving module, a second ultrasonic receiving module and a third ultrasonic module which are arranged as a triangle shape. The wireless controller includes an ultrasonic transmitting module for sending an ultrasonic wave which is received by the ultrasonic receiving modules in order to obtain three ultrasonic wave transmission times. The main apparatus sends the ultrasonic wave transmission times to the host. The host calculates the ultrasonic wave transmission times and therefore recognizes the position of the wireless controller. When the wireless controller is moved, the host obtains plurality of coordinate values indicating the motion track of the wireless controller. The motion track of the wireless controller is shown in a display by monitoring the coordinate values.

Abstract: A micro-sensing element includes a substrate, a micro-sensing structure and a covering material. The micro-sensing structure has a plurality of conductive channels disposed on the substrate. Each conductive channel includes a sensing part, a conductive wire and an electrode. The sensing part is electrically connected with the electrode through the conductive wire. The covering material covers the substrate and the conductive wires, and each of the sensing parts and each of the electrodes are exposed out of the covering material. A bio-sensing system and a manufacturing method of the micro-sensing element are also disclosed.

Abstract: Hermetically sealed enclosures and constructions are disclosed for use in endoscopic systems, particularly endoscopic systems with electronic imaging and illumination systems in the enclosures. Compound optical windows are also disclosed for use in the systems. The compound optical windows may have separate panes for an imaging system and an illumination system, and contrast-reducing optical boundaries are between panes.

Abstract: Hermetically sealed enclosures and constructions are disclosed for use in endoscopic systems, particularly endoscopic systems with electronic imaging and illumination systems in the enclosures. Compound optical windows are also disclosed for use in the systems. The compound optical windows may have separate panes for an imaging system and an illumination system, and contrast-reducing optical boundaries are between panes.