Abstract: A housing (10) of a portable electronic device includes an upper housing (11), a lower housing (12) and a protecting component (13). The upper housing defines a first latching member (1112) therein. The lower housing defines a second latching member (121) therein. The protecting component is assembled between the upper housing and the lower housing for preventing dust and vapor from entering the electronic device and defines a first latching portion (1313) corresponding to the first latching member and a second latching portion (1314) corresponding to the second latching member. The first latching portion and the second latching member respectively cooperate with the first latching member and the second latching member to assemble the upper housing, the lower housing and the protecting component together.

Abstract: The invention discloses a sealing assembly (40) includes a first sealing member (41) and a second sealing member (46) tightly cooperating with the first sealing member (41). The first sealing member (41) has a first assembling side surface (411), and the second sealing member (46) has a second assembling surface (461) facing the first assembling side surface (411). The first assembling side surface (411) and the second assembling side surface (461) form an assembly hole (43) there between. The invention also provides a sliding cover mechanism (100) using the sealing assembly (40).

Abstract: A portable electronic device comprises a cover member, a body member, and a power generating assembly. The cover member is slidably mounted to the body member. The power generating assembly includes a power generating device and a rack assembly. The power generating device includes a toothed gear and a stator. The toothed gear is rotatably clockwise or counter clockwise mounted to the stator. The stator is fixed to the body member. The rack assembly includes a fastening portion and a rack portion opposite to the fastening portion. The fastening portion is fixed to the cover member. The rack portion meshes with the toothed gear, thus the power generating device driving the rack assembly and the cover member to slide relative to the body member.

Abstract: The application discloses a sliding cover assembly which includes a fixing piece and a sliding piece. The fixing piece defines at least one combination sliding slot there through. The combination sliding slot includes at least two sliding slots that form an angle and communicate with each other. The sliding piece includes at least one sliding block protruding thereon. The sliding block is slidably assembled with the combination sliding slot to make the sliding piece slide relative to the combination sliding slot in two directions. The invention also discloses a portable electronic device using the sliding cover assembly.

Abstract: A rotating mechanism is used for a portable electronic device including a housing body and a display. The rotating mechanism includes a primary plate, a subsidiary plate and the connecting plate. The primary plate is pivotally connected to the housing body. The subsidiary plate is pivotally connected to the primary plate. The connecting plate is rotatably connected to the subsidiary plate. The connecting plate is fixed to the display allowing the display to hold a variety of positions relative to the housing body.

Abstract: A portable communication device includes a housing body and a display. The housing body includes a hinge portion at one side. A block is formed at each side of the hinge portion. A display forms two knuckles at the other end. Each knuckle forms a plurality of teeth portions, and the hinge portion rotatably connects to the two knuckles. The blocks engage with the teeth portions allowing the display to hold any of a variety of selectable positions relative to the housing body.

Abstract: A hinge assembly includes a positioning module, a connecting module and a rotating module. The positioning module includes a sleeve. The connecting module includes a pivot tube and an shaft. The pivot tube is rotatably attached to the sleeve. The shaft is slidably and rotatably received in the pivot tube. The rotating module is rotatably attached to one end of the shaft.

Abstract: A portable electronic device comprises a main enclosure, a QWERTY keyboard assembly, and a holder. The QWERTY keyboard assembly includes a plurality of keys disposed as a qwerty board. The holder includes a positioning portion, a connecting portion, and a receiving portion. The receiving portion is rotatably connected with the positioning portion via the connecting portion. The QWERTY keyboard assembly is received in the receiving portion, the positioning portion is secured to the main enclosure.

Abstract: A system, method, computer program and article of manufacture for updateable fan-out replication with reconfigurable master association in a large, multi-node LDAP environment. A replication ring supports the addition of fan-out nodes as children to each primary node that sits on a replication ring. The fan-out nodes can be cascaded in multiple parent/child relationships and can support full replication or a subset of the parent data. Each child/parent relationship is defined by an agreement. Each fan-out node replicates changes to their immediate children and parent based upon the change details and the configured agreement, distributing the replication load.

Abstract: A portable electronic device comprises a cover member, a body member, and a power generating assembly. The cover member is slidably mounted to the body member. The power generating assembly includes a power generating device and a rack assembly. The power generating device includes a toothed gear and a stator. The toothed gear is rotatably clockwise or counter clockwise mounted to the stator. The stator is fixed to the body member. The rack assembly includes a fastening portion and a rack portion opposite to the fastening portion. The fastening portion is fixed to the cover member. The rack portion meshes with the toothed gear, thus the power generating device driving the rack assembly and the cover member to slide relative to the body member.

Abstract: A power supply device is provided as an accessory to a portable electronic device to supply electric power to the portable electronic device. The power supply device includes a shell and a battery. The shell defines a concave assembling portion for assembling the portable electronic device therein and is configured to provide a better viewing angle of the portable electronic device. The battery is assembled within the shell to supply electric power.

Abstract: A rotary mechanism includes a base (10), a cover (30), a torsion spring (40) and a locking module (60). The cover is rotatably mounted to the base. Two ends of the torsion spring are fixed with the base and the cover respectively. The locking module limits the cover rotation relative to the base. When the cover overcomes the limitation of the locking module, the cover is automatically rotated relative to the base by the torsion spring.

Abstract: A rotary mechanism includes a base (10), a cover (30), a torsion spring (40) and a locking module (20). The rotary cover is rotatably mounted to the base. Two ends of the torsion spring are fixed with the base and the cover, respectively. The locking module limits the cover from rotating relative to the base. When the cover overcomes the limitation of the locking module, the cover can automatically rotate relative to the base due to the torsion spring.

Abstract: A method for generating a preamble of a data unit for transmission via a communication channel includes generating a first field of the preamble using one of a first sequence or a second sequence, such that the first sequence and the second sequence are complementary sequences such that a sum of out-of-phase aperiodic autocorrelation coefficients of the first sequence and the second sequence is zero; generating, using the other one of the first sequence or the second sequence, an indicator of a start of a second field of the preamble, the second field associated with channel estimation information, such that the indicator of the start of the second field immediately follows the first field; and generating the second field of the preamble.

Abstract: A method of generating a data unit preamble includes generating a first field associated with at least one of packet synchronization information or frame boundary indication, and generating a second field associated with channel estimation, including generating a first channel estimation sequence (CES) symbol and generating a second CES symbol, so that at least one of 1) a sequence in the first field serves as a cyclic prefix of the first CES symbol, 2) a beginning portion of the second CES symbol serves as a cyclic postfix of the first CES symbol, or 3) an ending portion of the first CES symbol serves as a cyclic prefix of the second CES symbol.