Abstract: A method for signal processing is provided. The method includes: obtaining a predistortion signal for compensating nonlinear distortion generated by a transmission path; adding the predistortion signal to the transmission path to compensate the nonlinear distortion; and outputting the nonlinear distortion compensated signal by the transmission path. With the above method, the nonlinear distortion of the transmission path can be compensated without modifying a current transmission path, thereby enhancing transmission performance of a transmitter by using a simple structure.

Abstract: Embodiments of the present invention provide a comparator and an analog-to-digital converter. A sampling module, a pre-amplifying module, and a coupling module in the comparator obtain a third differential voltage signal according to a positive input signal and a negative reference signal, and obtain a fourth differential voltage signal according to a negative input signal and a positive reference signal. A latch that is in the comparator and formed by a first P-type field effect transistor, a second P-type field effect transistor, a third field effect transistor, a fourth field effect transistor, a first switch, and a second switch is directly cross-coupled through gates, and directly collects the third differential voltage signal and the fourth differential voltage signal to the gates, so as to drive the latch to start positive feedback.

Abstract: Embodiments of the present invention provide a comparator and an analog-to-digital converter. A sampling module, a pre-amplifying module, and a coupling module in the comparator obtain a third differential voltage signal according to a positive input signal and a negative reference signal, and obtain a fourth differential voltage signal according to a negative input signal and a positive reference signal. A latch that is in the comparator and formed by a first P-type field effect transistor, a second P-type field effect transistor, a third field effect transistor, a fourth field effect transistor, a first switch, and a second switch is directly cross-coupled through gates, and directly collects the third differential voltage signal and the fourth differential voltage signal to the gates, so as to drive the latch to start positive feedback.

Abstract: A housing includes a substrate made of aluminum or aluminum alloy, an anodic oxide film disposed on the substrate, and an abrasion resisting layer disposed on the anodic oxide film. The abrasion resisting layer is an alkylate silicon dioxide layer containing nano aluminum oxide powder. An electronic device using the housing is also described.

Abstract: There is provided a lead frame and a packaging method. The lead frame comprises a first plurality of die pads, a second plurality of leads extending from the first plurality of die pads, and a third plurality of tie elements, each of which connects one of the first plurality of die pads to another.

Abstract: A fan assembly includes a fan, and a fan holder for receiving the fan. The fan holder includes a first mounting member and a second mounting member. A first side of the second mounting member is pivotably attached to the first mounting member. A second side of the second mounting member is locked to the first mounting member to receive the fan between the first and second mounting members.

Abstract: An electronic device includes a front plate, a top plate, and a switch control unit. The front plate defines a receiving hole therein. The switch control unit includes a mounting frame mounted on the front plate, a switch mounted in the mounting frame, a contact element located above the switch, and a control assembly. When the top plate completely covers the front plate, the top plate presses the contact element, and the contact element resiliently presses the switch to turn on the switch. When the top plate is pulled away from the front plate, the switch is turned off. The control assembly includes a first knob rotatably received in the mounting frame. The first knob includes a pressing portion. When the first knob is rotated from a first position to a second position, the pressing portion abuts against the switch to keep the switch on.

Abstract: An exemplary electronic device includes a casing, a first switch, a second switch and a switch control unit. The casing includes a side plate and a top plate detachably connected with a top end of the side plate. The first switch is turned on when the top plate is connected to the side plate and turned off when the top plate is detached from the side plate. The switch control unit includes a sliding member mounted at one side of the second switch. The sliding member includes a pressing plate. The sliding member is moveable relative to the side plate between a first state in which the pressing plate aligned with and pressing the second switch to turn on the second switch and a second state in which the pressing plate is staggered with the second switch to turn off the second switch.

Abstract: An exemplary electronic device includes a casing, a first switch, a second switch and a switch control unit. The second switch is connected in parallel with the first switch. The casing includes a side plate and a top plate detachably connected with a top end of the side plate. The first switch is turned on when the top plate mounted to the side plate and turned off when the top plate detached from the side plate. The switch control unit includes a sliding member mounted at the second switch. The sliding member includes a pressing plate and is moveable relative to the side plate between a first position in which the pressing plate aligned with and pressing the second switch to turn on the second switch and a second position in which the pressing plate is staggered with the second switch to turn off the second switch.

Abstract: A display module includes a bottom cover, a locking part, a pressing part, and a display panel. The bottom cover includes a bottom wall and two sidewalls, defines a first groove on the bottom wall and a second groove on one sidewall. The locking part is rotatably mounted on the bottom wall, and includes a first hook. The pressing part is slidably received in the first groove, and rotatably connected with the locking part. The display panel includes a sliding part and a display part rotatably connected with each other. The sliding part includes one peg slidably received in the second groove and a second hook engaging with the first hook. When the pressing part is slid in the first groove to rotate the locking part, the first hook disengages from the second hook, the display part is pulled out from the bottom cover and rotated to adjust viewing angle.

Abstract: An exemplary server includes a housing having a lateral side defining four openings, and a foot pad fixed in each of the openings. The foot pad includes a pivoting rod and a supporting member pivotally connected to the pivoting rod. The supporting member is operable to rotate in the opening, thereby the supporting member being totally received in the opening, or a part of the supporting member protruding outwardly from the opening for supporting the housing.

Abstract: A chassis includes a base board and a number of footpads mounted on a bottom of the base board. The base board defines a number of depressed portions corresponding to the footpads. Each footpad includes a fixing member mounted on an inner side of the base board and aligning with a corresponding depressed portion, a receiving member received in and rotatably mounted on a corresponding depressed portion of the base board, and a movable member received in and rotatably mounted on the receiving member. The movable member is rotatable in a first direction relative to the receiving member to extend out from the receiving member, and in a second direction opposite to the first direction relative to the receiving member to withdraw back into the receiving member.

Abstract: An enclosure includes a main body, a front panel, a pivot member pivotably attaching the front panel to the main body, and a positioning member. The pivot member is substantially U-shaped, allowing the front panel a large angle of rotational movement relative to the main body. Positioning members are in place to facilitate the refitting of the front panel.

Abstract: An exemplary provided screen unlocking method for an electronic device with a touch screen comprises the following steps: displaying a screen unlocking interface on the touch screen; generating unlocking signals in response to an unlocking operation applied on the touch screen; determining whether the enduring touch time period of the unlocking operation reaches a predetermined touch time period, and whether the touch area of the unlocking operation reaches a predetermined touch area, according to the unlocking signals; and unlocking the touch screen when the enduring touch time period of the unlocking operation reaches the predetermined touch time period, and the touch area of the unlocking operation reaches the predetermined touch area. An electronic device using the screen unlocking method is also provided.

Abstract: A page processing method for an electronic device is provided. The method includes the steps of: displaying a first cube consisting of a plurality of stacked layers, the stacked layers comprising a top layer displaying a current active icon group and remaining layers beneath the top layer associated with corresponding inactive icon groups; displaying a second cube consisting of a plurality of stacked layers, the stacked layers each associated with a inactive icon group; determining the touched region; determining the type of the touch by the user; retrieving a target page stored in the storage unit or creating a target page; creating at least one new icon group; and displaying the target page on the page display region, and updating the icon groups on the first and second cubes. An electronic device using the page processing method is also provided.

Abstract: A computer enclosure includes a shell body, and an expansion card retention assembly. The shell body includes a main chassis, and a side wall perpendicular to the main chassis. The side wall defines an elongated through hole extending along a first direction perpendicular to the main chassis. The expansion card retention assembly includes a first and second expansion frames fixed on the side wall. The first expansion frame includes a main board with a length in the first direction less than that of the through hole, and is configured for fixing a first expansion card. The second expansion frame includes an elongated main plate extending along the first direction, and a first support platform perpendicularly extending from an end of the main plate. The main plate and the first support platform are configured for matingly engaging with an expansion card bracket of a second expansion card.

Abstract: A mounting apparatus for mounting an expansion card to a rear panel of an electronic device includes a latching member, an operation member, and two connection members. The latching member includes four drive plates, a connection plate, and four latching portions. Each of the drive plates defines a rail therein. The operation member includes four pins, a handle, and a resilient portion. The resilient portion includes a latch block. The two connection members pass through the latching member and the rear panel. Each of the four pins is slidably received in the rail to rotate the latching member, each of the four latching portions is received in a first block plate of the expansion card, the latch block of the operation member is received in a latch of the rear panel, thereby mounting the expansion card to the rear panel.

Abstract: An electronic device with a touch screen device configured to display succeeding or preceding desktop screens. Each desktop screen includes opposite boundaries and displays icons. A touched and dragged icon may be added to any desired desktop screen. A method of moving icons and one or more computer readable storage media comprising computer executable instructions are also disclosed.

Abstract: An electronic device includes a storage unit, a touch display unit and a processing unit. The storage unit stores a parameter table comprising a plurality of parameters, and each parameter includes a first group of coordinates to determine the first part of a page and a second group of coordinates to determine the second part of the page. When the user's touch crosses a predetermined area, the processing unit obtains the parameters in sequence, and produces a tear-off-page figure on the first part of a current page, to cover the second part with a second area of the following page to display a combined page. Then the processing unit may store or delete the tore-off page according to a user selection after the next page is displayed in full. A related method is also provided.

Abstract: A signal buffer amplifier with high linearity is provided. A circuit includes a first transistor having a first gate terminal, a first source terminal, and a first drain terminal. The circuit also includes a second transistor having a second gate terminal, a second source terminal, and a second drain terminal, the second drain terminal coupled to the first source terminal. The circuit further includes a first signal path coupled in between a signal input and the first gate terminal, a second signal path coupled in between the signal input and the second gate terminal, and a signal output coupled to the second source terminal. The first signal path includes a filter.