Abstract: Collected information is analyzed by the mobile device to determine whether the device is displaced from the owner. The mobile device monitors and detects a reduction of ambient light to automatically enter into protection mode without manual activation. If an increase of ambient light and movement of the mobile device are both detected, then the device enters into authentication mode. Various techniques to verify the user's identity may be implemented in authentication mode. The user must correctly match an input key code, button combination, or an image recognition photograph against the stored information according to the method of verification chosen in each respective process. An alarm is activated if the device determines authentication is not received but may be disabled when the user's identity is verified after another authentication attempt.

Abstract: A fan includes an impeller comprising a hub and a plurality of blades, and a housing receiving the impeller and comprising a first frame having a side wall and an inlet, and a second frame having a side wall and an outlet, wherein an inner surface on a periphery of the inlet is a smooth curved surface. The first or second frame has at least one side hole disposed at the side wall of the first or second frame.

Abstract: A gain control device for an amplifier and related methods, and an audio processing device are described herein. In one aspect, a gain control device for an amplifier includes: a receiver module configured to receive a control signal; a gain control module configured to control the gain of said amplifier based on said control signal. In another aspect, an audio processing device includes: a microphone; an audio player; and an amplifier, wherein said amplifier includes a gain control device configured to receive a control signal and to control the gain of said amplifier based on the received control signal. In another aspect, a method for controlling the gain of an amplifier includes: receiving a control signal; controlling the gain of said amplifier based on said control signal. The described methods and device reduce the application cost and size.

Abstract: A processing chip for a digital microphone and related input circuit and a digital microphone are described herein. In one aspect, the input circuit for a processing chip of a digital microphone includes: a PMOS transistor, a resistor, a current source, and a low-pass filter. The described processing chip possesses high anti high-frequency interference capabilities and the described input circuit possesses high high-frequency power supply rejection ratio.

Abstract: A method for improving the reverse breakdown voltage between P-well and N-well and related semiconductor silicon devices are described herein. In one aspect, a semiconductor silicon device comprises a substrate; a P-well in said substrate; an N-well in said substrate; wherein said N-well and said P-well are separated by said substrate. In another aspect, a method for increasing the reverse breakdown voltage from P-well to N-well comprises: providing a substrate; forming an N-well and a P-well in said substrate and separating said N-well and said P-well by said substrate.

Abstract: A power supply device, a processing chip for a digital microphone and related digital microphone are described herein. In one aspect, a power supply device includes: at least two cascaded low-dropout linear regulators. In another aspect, a processing chip for digital microphone includes a processing module and a power supply module, wherein the power supply modules includes at least two cascaded low dropout linear regulators. In another aspect, a digital microphone includes a microphone and a processing chip, wherein the processing chip includes a processing module and a power supply module, wherein the power module includes at least two cascaded low-dropout linear regulators. Embodiments described herein provide a power supply device with higher PSRR.

Abstract: A fan and a fan wheel thereof are provided. The fan comprises the fan wheel and a fan cowl. The fan wheel comprises a hub and a plurality of blades. The hub can define an axial direction and a radial direction, and each of the blades has an axial length and a radial length. The portion of each of the blades that extends along the axial direction over a top edge of a side wall of the hub accounts for the axial length in a ratio between one third and two thirds. A connection portion connecting a central portion to the side wall of the hub, and a tip and a tail of each of the blades, as well as a flow conducting portion connecting a top wall to a central hole of the fan cowl, are all rounded. Thereby, the fan and the fan wheel thereof can strengthen the flow rate and reduce the noise generated by the fan.

Abstract: A fan includes an impeller comprising a hub and a plurality of blades, and a housing receiving the impeller and comprising a first frame having a side wall and an inlet, and a second frame having a side wall and an outlet, wherein an inner surface on a periphery of the inlet is a smooth curved surface. The first or second frame has at least one side hole disposed at the side wall of the first or second frame.

Abstract: A fan and a fan wheel thereof are provided. The fan comprises the fan wheel and a fan cowl. The fan wheel comprises a hub and a plurality of blades. The hub can define an axial direction and a radial direction, and each of the blades has an axial length and a radial length. The portion of each of the blades that extends along the axial direction over a top edge of a side wall of the hub accounts for the axial length in a ratio between one third and two thirds. A connection portion connecting a central portion to the side wall of the hub, and a tip and a tail of each of the blades, as well as a flow conducting portion connecting a top wall to a central hole of the fan cowl, are all rounded. Thereby, the fan and the fan wheel thereof can strengthen the flow rate and reduce the noise generated by the fan.

Abstract: The present invention provides a grating photometer comprising a light splitting box, a preamplifier box, a photodiode array and optical assembly. The light splitting box has a light splitting chamber. There are provided a first extinction hole and second extinction hole respectively on the side wall of the light splitting chamber and on the preamplifier box to correspond to zero order spectrum line. The first hole is a through hole and the second hole is a blind hole. The configuration of the first and second extinction holes direct the zero order spectrum to go into the second extinction hole, as a result, generates a rather small number of stray light in the light splitting chamber coming from the scattering of the zero order spectrum from the second extinction hole, thus suppresses effectively the stray light and improves the signal-to-noise ratio of the photometer.

Abstract: A test apparatus for testing a separation force between a housing (92) and a subsidiary element (94) of a portable electronic device (100). The housing defines a plurality of through holes. The subsidiary element is attached to the housing, and covers the through holes. The test apparatus includes: a positioning apparatus (50), a push mechanism (60) and a test machine (70). The positioning apparatus positions the housing with the subsidiary element therein. The push mechanism includes a support board (62) and a plurality of rods (64). The rods are mounted in the support board. The rods pass through the through holes and resisting the subsidiary element. The test machine provides a driven force to press the support board to separate the subsidiary element from the housing.

Abstract: A test apparatus for testing a separation force between a housing (92) and a subsidiary element (94) of a portable electronic device (100). The housing defines a plurality of through holes. The subsidiary element is attached to the housing, and covers the through holes. The test apparatus includes: a positioning apparatus (50), a push mechanism (60) and a test machine (70). The positioning apparatus positions the housing with the subsidiary element therein. The push mechanism includes a support board (62) and a plurality of rods (64). The rods are mounted in the support board. The rods pass through the through holes and resisting the subsidiary element. The test machine provides a driven force to press the support board to separate the subsidiary element from the housing.

Abstract: A system (100) for managing electronic documents associated with respective products (i.e., product documentation) includes a database (40) and a server (30). The database selectively stores the electronic documents. The server is electronically connected to the database and includes a loading module (301) and a processing module (302). The loading module transmits selected electronic documents to the database. The processing module includes an inquiry module (3021) configured for locating/determining related documents in the database according to a keyword; a path-generating module (3022) configured for generating path links indicating locations of the located related documents; and a maintenance module (3023) for automatically deleting selectably chosen electronic documents in the database.

Abstract: The present invention provides a grating photometer comprising a light splitting box a preamplifier box, a photodiode array and optical assembly. The light splitting box has a light splitting chamber. There are provided a first extinction hole and second extinction hole respectively on the side wall of the light splitting chamber and on the preamplifier box to correspond to zero order spectrum line. The first hole is a through hole and the second hole is a blind hole the configuration of the first and second extinction holes direct the zero order spectrum to go into the second extinction hole, as a result, generates a rather small number of stray light in the light splitting chamber coming from the scattering of the zero order spectrum from the second extinction hole, thus suppresses effectively the stray light and improves tho signal-to-noise ratio of the photometer.

Abstract: A sorption rotor has end faces and is rotatably journaled to travel during a revolution through an inflow sector and an outflow sector. The rotor is made of a matrix material having a honeycomb structure with axially throughgoing flow passages. The matrix material is constituted of cellulose paper modified by a ceramic material infiltrated by a sol-gel system or a gel-forming low-viscosity liquid into the matrix.

Abstract: The invention relates to a sorption rotor (3), which is rotationally mounted, whose face (6, 7) is provided with an inflow sector (6) and an out-flow sector (7), and which passes through said sectors when rotating. The sorption rotor also comprises a material matrix (12) that forms a honeycomb structure with flow channels (15) axially passing through the sorption rotor (3). The aim of the invention is to give the sorption rotor (3) a good thermal stability and strength, a good thermoshock resistance and a high degree of dimensional stability, whereby, at the same time, the sorption rotor should be able to be produced with a comparatively low economical expense. To this end, the invention provides that the material matrix (12) of the sorption rotor (3) is made from cellulose paper and is modified using ceramic materials.

Abstract: A method for sending a web page to a fax machine includes a first computer capable of accessing a web page, a fax machine identified by a fax number and capable of receiving fax signals, and a transmission means connecting the fax machine to the first computer. The computer converts the web page into a fax signal and transmits the fax signal to the fax machine using the transmission means. The fax machine prints the fax signal representing the web page. Another computer can also send a fax signal through a computer network to the computer that is connected to a fax machine, and in this way print a web page at the fax machine.

Abstract: A system, a device and their relative methods for displaying the latest messages from an E-mail account under the conditions where there is no need to take the initiative in turning on a computer are disclosed. The incoming E-mail displaying system comprises: a displaying device for displaying new mails arrived from an E-mail box; a mail message service device responsive for searching a mail message in Internet, and responsive for transmitting the mail message through a transmission path; and a switching device responsive to the transmission path for receiving the mail message from the mail message service device and transmitting the mail message to the displaying device. Moreover, the displaying device can be further designed to comprise an input module, a telephone interface end, a displaying module, and a modem having embedded TCP/IP and E-mail client application et cetera functions. That is, enabling the displaying device to make a direct connection to Internet.