摘要:
A housing assembly for an electronic device includes a mounting assembly, an engaging assembly, a first housing, and a guiding member. The mounting assembly includes an accommodation room having an opening therein. The engaging assembly includes a first elastic member and a first engaging member mounted in the accommodation room. The first engaging member includes a first force receiving portion and a first engaging portion corresponding to the opening. The first housing is coupled with the mounting assembly and includes an assembling portion to be connected with the first engaging portion. The guiding member has a first guiding portion corresponding to the first force receiving portion. When the first guiding portion of the guiding member is applied by a force to move the first force receiving portion of the first engaging member to a position, the first engaging member is disengaged from the assembling portion of the first housing.
摘要:
A method and an apparatus for generating a coded block pattern for highpass coefficients are provided. The method includes receiving a quantized highpass coefficient (HP), wherein the HP includes a macroblock data; dividing the macroblock into a plurality of blocks; performing lapped transform (LT) operations of two stages on the said block data, concurrently calculating a plurality of coded block patterns of the blocks corresponding to all possible HP prediction directions; performing a calculation to obtain selection information of the HP prediction directions according to lowpass coefficients (LPs) generated through LT operations of the two stages; selecting a corresponding coded block pattern among the said coded block patterns according to the above-mentioned selection information of the HP prediction directions and outputting the selected coded block pattern.
摘要:
An exemplary driving apparatus capable of generating a driving current, including: an analog input generating circuit, an analog input driving circuit, and an output circuit. The analog input generating circuit is electrically connected between a first voltage source and the ground and configured (i.e., structured and arranged) for supplying an adjustable analog signal. The analog input driving circuit is electrically connected between a second voltage source and the ground and configured for converting the analog signal into a pulsed signal. The output circuit is configured for converting the pulsed signal into a driving current as an output. The frequency of the pulsed signal can be adjusted via adjusting the analog signal and thereby varying the driving current. Thus the driving current can be adapted for the different target loads.
摘要:
An enhanced plane light source has a luminescent layer independently disposed in each recess formed on a light-transmittable substrate, so that field emission electrons directly impact the luminescent layer to produce light, which is not shielded by the cathode. The enhanced plane light source also includes a substrate forming a bottom structure thereof. The bottom substrate has a metal reflection surface to increase the reflectivity and upgrade light-emitting efficiency and luminous intensity. The recesses on the light-transmittable substrate have an approximate semi-circular or semi-parabolic cross section to increase the high field region at the cathode and the effective luminescent area at the anode, so that the luminous intensity and evenness are also largely increased.
摘要:
A radio signal transmitter for an audio source generator includes a reception antenna for receiving a plurality of broadcasting signals, a decision unit coupled to the reception antenna for determining intensities of the plurality of broadcasting signals received by the reception antenna, a selection unit coupled to the decision unit for determining an operating frequency according to a decision result of the decision unit, a modulation unit coupled to the selection unit and the audio source generator for transforming an audio signal provided by the audio source generator into a broadcasting signal according to the operating frequency determined by the selection unit, and a transmission antenna coupled to the modulation unit for emitting the broadcasting signal outputted from the modulation unit in the air.
摘要:
A method of fabricating a semiconductor device having a trench gate is provided. First, a semiconductor substrate having a trench etch mask thereon is provided. The semiconductor substrate is etched to form a first trench having a first depth using the trench etch mask as a shield. Impurities are doped into the semiconductor substrate through the first trench to form a doped region. The doped region and the semiconductor substrate underlying the first trench are etched to form a second trench having a second depth greater than the first depth, wherein the second trench has a sidewall and a bottom. A gate insulating layer is formed on the sidewall and the bottom of the second trench. A trench gate is formed in the second trench.
摘要:
An exemplary fan driving system includes a driving device and a MOSFET group. The driving device includes a first adjustable resistor connected between its first voltage signal input terminal and ground, and a second adjustable resistor connected between its second voltage signal input terminal and ground. The MOSFET group includes two N-type MOSFETs and two P-type MOSFETs. The first terminal of the fan is connected to an anode of D1 and a cathode of D3. The second terminal of the fan is connected to an anode of D2 and a cathode of D4. Cathodes of the D1 and D2 are configured to connect a supply voltage. Anodes of the D3 and D4 both are grounded. The fan driving system can effectively discharge off the residual current in the coil of the fan at the moment of the MOSFET group being switched off.
摘要:
A method and an apparatus for processing a motion picture expert group (MPEG) video, used in a video reproduction apparatus, can prevent a non-reference picture displaying error due to the non-reference picture decoding not completed in time. The apparatus includes a video decoder for generating a non-reference picture on a macroblock-by-macroblock basis by referring to a reference picture; a displaying unit for displaying the non-reference picture on the macroblock-by-macroblock basis. The displaying unit further detects whether decoding of a next macroblock of the non-reference picture is completed when displaying a current macroblock. If decoding of the next macroblock is completed, the displaying unit displays the next macroblock of the non-reference picture. If decoding of the next macroblock is not completed, and the displaying unit displays the corresponding macroblock of the reference picture. In one embodiment, the reference picture is an I picture or a P picture, and the non-reference picture is a B picture.
摘要:
A display device including a pixel unit, a selection unit, and a control unit is disclosed. The pixel unit includes a driving transistor and a capacitor. The driving transistor includes a gate and a source. The capacitor is coupled between the gate and the source. The selection unit selectively transmits a first voltage or a second voltage to the driving transistor. The control unit controls the selection unit and receives the voltage of the source.
摘要:
A method for utilizing a household's existing telephone line wiring and existing analog telephone sets to make VoIP calls and PSTN calls is provided. The method allows the installation of a simple VoIP routing device in the existing wiring without restructuring of the existing wiring or a deployment of a totally separate network. The method deploys a number of mapping devices to take advantages of the un-used wires in the existing wiring. The mapping devices are installed between the wall jacks and the phone sets, and between a wall jack and the VoIP routing device. The installation of the mapping devices is easy and requires no special tools and experienced personnel.