Abstract: An electronic system, an electronic apparatus, and an access authentication method thereof are provided. The electronic system includes a master apparatus and a slave apparatus. The slave apparatus is coupled to the master apparatus through a serial transmission interface. The slave apparatus includes a data storage unit protected by the slave apparatus with a predetermined key. The master apparatus sends an access request to the data storage unit through the serial transmission interface. The slave apparatus determines whether the master apparatus is allowed to access the data storage unit according to the predetermined key and a key inputted by the master apparatus for authentication.

Abstract: A positioning system comprises a sweeper and a positioning device arranged on a ceiling. The sweeper has a lighting component for emitting light. The positioning device at least has a height measuring unit and a plurality of light-sensitive units. The positioning device measures a vertical distance between the positioning device and a floor through the height measuring unit. The positioning device receives the light emitted from the emitting light of the sweeper through the light-sensitive units, and calculates an oblique distance between the positioning device and the sweeper based on different strengths of the light respectively received from each of the plurality of light-sensitive units. Therefore, the positioning device can calculates a parallel distance between the positioning device and the sweeper based on the vertical distance and the oblique distance, and further determines a related position of the sweeper opposite to the positioning device.

Abstract: A positioning system comprises a sweeper and a positioning device arranged on a ceiling. The sweeper has a lighting component for emitting light. The positioning device at least has a height measuring unit and a plurality of light-sensitive units. The positioning device measures a vertical distance between the positioning device and a floor through the height measuring unit. The positioning device receives the light emitted from the emitting light of the sweeper through the light-sensitive units, and calculates an oblique distance between the positioning device and the sweeper based on different strengths of the light respectively received from each of the plurality of light-sensitive units. Therefore, the positioning device can calculates a parallel distance between the positioning device and the sweeper based on the vertical distance and the oblique distance, and further determines a related position of the sweeper opposite to the positioning device.

Abstract: An electronic system, an electronic apparatus, and an access authentication method thereof are provided. The electronic system includes a master apparatus and a slave apparatus. The slave apparatus is coupled to the master apparatus through a serial transmission interface. The slave apparatus includes a data storage unit protected by the slave apparatus with a predetermined key. The master apparatus sends an access request to the data storage unit through the serial transmission interface. The slave apparatus determines whether the master apparatus is allowed to access the data storage unit according to the predetermined key and a key inputted by the master apparatus for authentication.

Abstract: A light emitting device driving circuit and a method thereof are provided. The light emitting device driving circuit includes a frequency detection circuit and a frequency adjustment circuit. The frequency detection circuit is configured to detect a light source frequency of a light emitting device to provide at least one detection frequency signal. The frequency adjustment circuit adjusts the light source frequency of the light emitting device according to the detection frequency signal and a plurality of preset flicker frequencies.

Abstract: A protective case for a mobile device is disclosed. The case includes an additional power source (i.e., a battery) that can supply electric current to the mobile device. A processing device within the protective case may be wirelessly connected to the mobile device, such as with a Bluetooth interface, and thereby control operational aspects of the battery case, including for example control over supplying power to the mobile device. The battery case may be part of a charging system or kit that includes a uniquely designed separate charger. In yet another aspect, the protective case may include unitary bumper flexible bumper co-molded to the body of the case and a male connector extending from a nested portion that is adapted to tilt outward from the case to facilitate insertion of the corresponding female port on the mobile device into the connector and into the case.

Abstract: An improved battery case adapted to removably receive, protect and provide power to a mobile device is provided. The case includes a base configured to house a rechargeable battery, a user detachable back face cover capable of providing aesthetic modularity to the consumer and manufacturing advantages, and a bumper that is constructed to include a rigid inner frame or skeleton that includes an outwardly extending rib that is molded on either side with an outer softer and more elastic layer that extends over the face of the mobile device. The bumper can be molded as an integral part of the case or be removably attached to the a component of the case.

Abstract: The present invention provides a multi-phase switching regulator and a droop circuit for use in the multi-phase switching regulator. The multi-phase switching regulator generates pulse width modulation (PWM) signals according to an output voltage and a droop signal, to drive a plurality of switching sets to convert an input voltage to the output voltage. The droop circuit detects the sum of the currents generated by the plurality of switching sets and provides the droop signal which is related to the sum of the currents to the multi-phase switching regulator. The droop signal can be used for over current protection (OCP) or for the droop control.

Abstract: A detection method, used in a network system, for detecting an online state of a server, includes a host generating a discover packet according to a media access control address of a network interface card of the server and transmitting the discover packet to the network system; and the host capturing the server internet protocol address in at least one offer packet when receiving the at least one offer packet corresponding to the discover packet, and storing the server internet protocol address in a detection result file.

Abstract: The present invention provides a multi-phase switching regulator and a droop circuit for use in the multi-phase switching regulator. The multi-phase switching regulator generates pulse width modulation (PWM) signals according to an output voltage and a droop signal, to drive a plurality of switching sets to convert an input voltage to the output voltage. The droop circuit detects the sum of the currents generated by the plurality of switching sets and provides the droop signal which is related to the sum of the currents to the multi-phase switching regulator. The droop signal can be used for over current protection (OCP) or for the droop control.

Abstract: The present invention relates to a biosensor having a substrate, a thin-film electrode and multiple nanoparticles. The substrate has a substrate surface. The substrate surface has multiple hemispherical protrusions. The thin-film electrode is formed on the substrate surface and has multiple hemispherical surfaces. The multiple nanoparticles are electrochemically deposited on the hemispherical surfaces. The hemispherical surfaces of the thin-film electrode enlarge an area available for binding on a surface of each of the nanoparticles. The enlarged area of the nanoparticles raises the sensitivity of the biosensor and shortens detection time. The present invention also relates to a method for making the aforementioned biosensor.