Abstract: A riser card assembly includes a bracket with a riser card secured therein, a handle, and a sliding mechanism. At least one expansion card is connected with the riser card and received in the bracket. The sliding mechanism slidably secures the handle to the bracket. The sliding mechanism includes at least one guiding pin formed on one of the handle and the bracket, and at least one slot receiving the guiding pin sliding therein defined in the other of the handle and the bracket. The at least one guiding pin slides in the at least one slot between a first position where the handle is in a retracted state to be together with the bracket, and a second position where the handle is in an extended state to be away from the bracket.

Abstract: A bracket assembly includes a first expansion card (30), a second expansion card (26), a riser card (20) for horizontally receiving the second expansion card, and a retaining bracket (10) configured for securing to a computer chassis which provides connectors for the first expansion card and the riser card. The first expansion card has a first slot cover (31) at a front side thereof. The second expansion card has a second slot cover (21) at a front side thereof. The retaining bracket has a rectangular receiving wall (11). A bottom wall (14) and at least one side wall (12) extend perpendicularly from a periphery of the receiving wall. The receiving wall defines a first slot (111) and a second slot (112). The first slot and the second slot respectively receive the first slot cover and the second slot cover.

Abstract: An improved precompensation circuit includes a greatly improved differentiator in the dispersion precompensation path, a preprocessor in the dispersion precompensation path for reducing f2?f1 type Composite Second Order (CSO) distortion, and a broadband phase shifter for compensating undesired vector interaction between the laser predistortion and dispersion compensation.

Abstract: A computer enclosure includes a chassis (10), a top cover (30) mounted to the chassis and a lever (90). The chassis includes a sidewall (13). A rim (131) formed on a top portion of the sidewall. The top cover includes a top panel (31) with an edge (32) formed thereon. The lever is pivotably attached to the edge of the top cover. The lever includes a propelling portion (93) and a handle (91) formed on opposite end of the propelling portion. The lever is capable of being rotated, engage the rim of the sidewall, and release the top cover from the chassis.

Abstract: A standing apparatus for mounting electrical components to a base plate (10), the standing apparatus includes the base plate, a standing member (20), and a clamping member (30). The base plate defines a recess (12) in a first face, and a hole (14) extends through the recess to a second face opposite to the first face. The standing member includes a positioning collar (22) and a standing pillar (24). The standing pillar has a groove (242). The clamping member includes a base portion (32) and a domelike portion (34), the domelike portion has a plurality of spring clips (36), the spring clips encircling the standing pillar and received in the groove of the standing member for retaining the standing member to the base plate.

Abstract: A data storage device carrier assembly includes a first carrier, a second carrier, and a bracket. The first carrier includes a pair of parallel side walls configured for mounting large data storage devices therebetween. The second carrier includes a pair of parallel side plates configured for mounting small data storage devices therebetween. A distance between the pair of side plates of the second carrier is less than a distance between the pair of side walls of the first carrier. The bracket is attached on one of the side plates of the second carrier to cooperatively form a unit having a width approximately same as the distance between the pair of side walls of the first carrier. The unit is mountable between the side walls of the first carrier.

Abstract: A computer system includes a motherboard (10 or 50) with at least one CPU heat sink mounted thereon and a chassis (20) for mounting the motherboard therein. The chassis includes a plurality of bumps (23), and a plurality of knockdown standoffs (25). Some of the bumps are under the at least one CPU heat sink, the standoffs are mounted on the bumps under the CPU heat sink for resisting against the motherboard and supporting the CPU heat sink. Some of the bumps are spares adapted for mounting another type of motherboard to the chassis.

Abstract: The invention is related to a computer enclosure. The computer enclosure includes a chassis, an expansion card, and a rotating member. The expansion card includes a shield plate which has a bent end formed thereon. The chassis includes a sidewall. A slot is defined in the sidewall. The sidewall forms a support plate at a side of the slot. The sidewall is capable of accepting the shield plate of the expansion card to shield the slot of the sidewall, and the support plate is configured to accepting the bent end of the expansion card. The rotating member includes an arm. The rotating member is capable of rotating on the sidewall to a locked position. In the locked position, the arm is capable of exerting force on the bent end of the expansion card located on the support plate, and the locked position is capable of securing the expansion card on the sidewall of the chassis.

Abstract: The invention relates to a server enclosure with a transfer card module with a chassis having a side, a mounting bracket attached to the side of the chassis, and a transfer card secured to the mounting bracket. The mounting bracket includes a first sidewall and an opposite second sidewall. A first receiving slot is defined between the first sidewall and the second sidewall. The transfer card includes a printed circuit board. A first connector and a second connector are disposed on one side of the printed circuit board. The first connector is located between the printed circuit board and the first sidewall of the mounting bracket. The second connector is proximate to the mounting bracket and aligned with the first receiving slot of the mounting bracket.

Abstract: A mounting apparatus for mounting a cable management arm to a rack includes a securing piece formed on one side of the cable management arm, and a supporting piece formed on the rack corresponding to the securing piece. The securing piece defines a receiving space therein. A locking tab is arranged on one of the securing piece and the supporting piece. A locking hole is defined in the other of the securing piece and the supporting piece. The supporting piece is received in the receiving space in such a manner that the supporting piece moves in the receiving space from a first position, in which the supporting piece resists against the securing piece to bend the securing piece, to a second position, in which the securing piece rebounds to have the locking tab inserted into the locking hole.

Abstract: A disk drive assembly is mounting in an enclosure (1). The enclosure has a bar (12). The disk drive includes a disk drive (4), a mounting bracket (2), and a converter card (3). The disk drive has a top surface (41), opposite side surfaces (43) and a back surface (45) perpendicular to the top surface. The disk drive has a first output connector on the back surface. The mounting bracket has a pair of feet (248) attached to the side surfaces of the disk drive and a mounting board (22) attached to the back surface of the disk drive. A resilient arm (5) with a protrusion (53) is formed on the resilient arm for engaging with the bar. The converter card is received in the mounting bracket, the converter card has a circuit board (31) parallel to the top surface of the disk drive.

Abstract: Methods, systems and computer program products for countering the effects of four wave mixing are described. In one implementation, a controller can be used to shift an operating wavelength of an optical transmitter away from a zero-dispersion wavelength through which signals of the optical transmitter are transmitted. The controller can perform the shifting process while allowing sufficient margin for division multiplexing and minimal dispersion. The controller may determine an appropriate offset to be used for shifting the operating wavelength without subjecting the signals to a significant increase in undesirable effects such as dispersion, crosstalk and signal distortion which can impact the overall bit-error rate.

Abstract: A computer enclosure comprising a chassis (3) and a disk drive bracket (1). The chassis comprising a bottom panel (32), at least one protrusion (321) disposed on the bottom panel, the protrusion comprising a neck portion (323) and an expanded head portion (325), which having a top surface (327). The disk drive bracket comprising a bottom wall which has an interior surface (122), at least one recess (1 8) defined in the bottom wall, each recess having a fixing slot (121), each fixing slot comprising a narrow fixing aperture (125) and a wide entrance aperture (123). The head portion of the protrusion being embedded in the recess, the top surface (327) of the head portion being not higher than the interior surface of the bottom panel.

Abstract: An electronic device with an airflow guiding duct includes a chassis, an airflow guiding duct, and a top cover. The chassis includes a bottom wall and a sidewall perpendicular to the bottom wall. A circuit board is mounted on the bottom wall. A pair of securing members protrudes from a top of the sidewall. The airflow guiding duct includes a top wall and a plurality of securing slots defined in the top wall corresponding to the securing members, for the securing members being lockingly engaging in the securing slots, thereby limiting movement of the airflow guiding duct in directions parallel to the circuit board. The cover is mounted on the chassis and abuts against the top wall of the airflow guiding duct, for limiting movement of the airflow guiding duct in a direction perpendicular to the circuit board.

Abstract: A mounting device includes a chassis, a transfer card electronically connected to a motherboard, and a mounting bracket assembly. The mounting bracket assembly includes a clamping member and a fastening member. The clamping member clamping a first end of the transfer card and restricting movement of the transfer card in a first direction. The fastening member fastening an opposite second end of the transfer card to restrict movement of the transfer card in a second direction perpendicular to the first direction.

Abstract: A mounting apparatus of a data storage device includes a chassis with a locking hole defined in a side wall of the chassis, a bracket configured for received the data storage device therein, a locking piece, and a driving post. The bracket is slidably received in the chassis. The bracket comprises a head portion with a guiding slot defined therein. The locking piece has a driven edge. The locking piece is slidably attached to the head portion of the bracket with the driven edge crossing the guiding slot and the locking piece inserted in the locking hole of the chassis. The driving post inserts in the guiding slot and resists against the driven edge of the locking piece. The driving post moves in the slot and exerts force on the driven edge of the locking piece to drive the locking piece to slide out of the locking hole.

Abstract: An airflow-guiding device for guiding airflow to heat generating components includes an airflow-guiding shield and at least one airflow-guiding piece rotatable in the airflow-guiding shield. The airflow-guiding piece includes a guiding surface guiding airflow, and a blocking surface blocking airflow. An airflow-guiding position where the guiding surface faces the heat generating components guides airflow thereto, and an airflow-blocking position where the blocking surface faces the airflow blocks the airflow. The airflow-guiding piece rotates between the airflow-guiding position and the airflow-blocking position.

Abstract: A computer enclosure includes a chassis having a rear wall, a transfer card, a mounting bracket, and a PCI card. An expansion slot is defined in the rear wall of the chassis. A detachable shielding cover is formed on the rear wall adjacent to the expansion slot. The transfer card is secured in the chassis. The transfer card has a circuit board perpendicular to the rear wall. The mounting bracket is secured to the rear wall of the chassis and has a width substantially equal to a length of the expansion slot. The PCI card is secured to the mounting bracket and perpendicularly attached to the transfer card. A receiving space corresponding to the shielding cover is defined shielding cover and the PCI card, for receiving a connector between the mounting bracket and the circuit board of the transfer card.

Abstract: A drive bracket assembly for carrying data storage devices, includes a first carrying bracket having a pair of side walls, a second carrying bracket mounted in the first carrying bracket, and a locking latch. The second carrying bracket includes a pair of side walls. A securing member including a first blocking tab formed on each side wall of the second carrying bracket. A locking latch is resiliently and moveably attached to one of the side walls of the first carrying bracket. A blocking member corresponding to the first blocking tab of the securing member is formed on the locking latch, for preventing a movement of the second carrying bracket along a first direction parallel to the side walls of the first carrying bracket. The first carrying bracket can be mounted in the first carrying bracket for carrying small type data storage devices. The second carrying bracket can be removed from the first carrying bracket so that the first carrying bracket can hold more large type data storage devices.

Abstract: A mounting assembly includes a chassis having a plurality of opposite receiving tabs thereon, and a plurality of bracket subassemblies slidably mounted to the chassis along the receiving tabs of the chassis. Each bracket subassembly secures a fan therein and includes a bracket having a rear wall and two opposite sidewalls, a positioning member, and a lift-out apparatus attached to the bracket. The lift-out apparatus includes a clasping member fixed to the bracket, a sliding member slidably sandwiched between the sidewall of the bracket and the clasping member, and an elastic member. A locking structure is formed on the sliding member and the sidewall of the bracket. When the locking structure is unlocked, the sliding member is lifted out due to rebounding of the elastic member. The sliding member is then pulled to urge the bracket subassembly to disengage from the chassis.