Abstract: A Bluetooth network topology. The Bluetooth network system includes a plurality of piconets, containing a plurality of Bluetooth units, including one master unit and a plurality of slave units. These piconets are linked by the bridge units to form a scatternet ring. The scatternet ring is formed by a centralized forming mechanism, operated by a simple yet efficient routing protocol and maintained by recovery and extension mechanisms.

Abstract: A battery cover assembly includes a battery cover (3) defining a pair of guide rails (326) therein, a connecting member (2), a housing (1) defining a receiving slot (164) and at least a battery-receiving compartment (194), a plurality of springs (5), and an antenna rod (4). The connecting member is slidingly received in the guide rails along a lateral direction, and the antenna rod inserts into the receiving slot through the connecting member and the springs such that the battery cover can rotate about the antenna rod. When the battery cover is rotated downwardly to the housing, a force is required to press the battery cover down upon the housing, and then inwardly along a direction toward the antenna rod until locking projections (302) on the cover catch in troughs (182) defined in the housing.

Abstract: A battery cover assembly includes a battery cover (3) defining guiding slots (326) therein, a connecting member (2), a housing (1) defining a battery-receiving compartment (194), a plurality of springs (5), and a rod (4). The housing includes a left sidewall (16), a partion wall (19), a first step (161) and a second step (163) connecting against the left sidewall, defining a receiving recess (167). The connecting member is slidingly received in the guiding slots along a lateral direction. The rod inserts through the connecting member, the springs, and secured in the receiving recess such that the battery cover can rotate about the rod. When the battery cover is rotated downwardly to the housing, a force is required to press the battery cover down upon the housing, and then inwardly along a direction toward the rod until locking projections (302) on the cover catch in troughs (182) defined in the housing.

Abstract: A hinge mechanism includes a fixed member (20), two rolling elements (40), an elastic member (60), a rotational member (50) and a shaft (30). The fixed member has a flange (201) and a stop portion (202) thereof. Two first hollows (2022) are defined in the end part of the flange. Each rolling element has two rolling portions (402, 403). The rotational member includes a main portion (51) defined two hemisphere second hollows (511), and a middle portion (53) defining two receiving chambers (531) therein for receiving the rolling bodies. The first and second rolling portions of each rolling element are respectively received in the first hollow and the second hollow. The shaft extends through the fixed member, the elastic member and the rotational member. One end of the elastic member resists the rotational member and the other end of the elastic member is fixed in the longitudinal direction of the shaft.

Abstract: A manufacturing process and apparatus therefore are provided for processing an electronic device comprising oxidizable material during processing. The electronic device is located inside a chamber and is heated a processing temperature with a heater. A reductive atmosphere is created in the chamber by supplying a gas comprising glycolic acid vapor while processing the electronic device at the processing temperature.

Abstract: A replaceable panel device (1) includes a panel (20) with a mounting portion (24), a locking subassembly (30), and a top cover (40) with a block (45). The mounting portion has at least one slideway (241), a recess (242), and two locating grooves (243). The locking subassembly is accommodated in the mounting portion of the panel. The locking subassembly has a button (31), an elastic rod (32), and a slider (33). The button has at least one rail (312), a hole (313) defined at top of the rail. The slider has at least one slot (331) and a rabbet (332). The slider is received in the recess. The rail is received through the slideway and the slot. The elastic rod is received through the hole. Ends of the elastic rod are located in the locating grooves. The rabbet engagingly receives the block of the top cover.

Abstract: A battery cover assembly includes a battery cover (20), a housing (10), and a locking member (30). The battery cover has a receiving hole (16) defined therein. The receiving hole is located proximate to one end of the battery cover. The housing has a locking part (19) defined in one end thereof. The locking part includes a receiving groove (192) and a resisting portion protruding from a bottom of the receiving groove. The locking member has an operating portion (32) and a latching ear (34). The operating portion is rotatably mounted in the receiving hole of the battery cover. The latching ear extends from one side of the operating portion. The latching ear is configured so as to be releasably engageable with the locking part of the housing.

Abstract: A connecting structure for a flip cover battery compartment of a mobile phone comprises a base (1), a connecting member (2), a cover (3), a shaft (4), two springs (5), and two pins (6). The base comprises a receiving part (164) and a recessed portion (194). The recessed portion is for receiving a battery. Two hinges (22) is formed on one end of the connecting member. The cover comprises a pair of rails (322). The shaft extends through holes of the springs. The connecting member is connected to the springs by the pins. The connecting member can slide along the rails of the cover. Thus the combined cover and connecting member is rotatable relative to the base, and the cover is slidable relative to the connecting member so that the cover can be locked to the base in a closed position.

Abstract: A battery cover assembly includes a battery cover (20), a housing (10), and a locking member (30). The battery cover has a receiving hole (16) defined therein. The receiving hole is located proximate to one end of the battery cover. The housing has a locking part (19) defined in one end thereof. The locking part includes a receiving groove (192) and a resisting portion protruding from a bottom of the receiving groove. The locking member has an operating portion (32) and a latching ear (34). The operating portion is rotatably mounted in the receiving hole of the battery cover. The latching ear extends from one side of the operating portion. The latching ear is configured so as to be releasably engageable with the locking part of the housing.

Abstract: A battery cover assembly includes a battery cover (20), a housing (10), and a locking member (30). The battery cover has a receiving hole (16) defined therein. The receiving hole is located proximate one end of the battery cover. The housing has a locking groove (184) defined in one end thereof. The locking member has an operating portion (32) and a latching tab (34). The operating portion is rotatably mounted in the receiving hole of the battery cover. The latching tab extends from one side of the operating portion. The latching tab is configured so as to be releasably lockable in the locking groove of the housing.

Abstract: A hinge assembly (100) includes a first magnetic member (10), and a second magnetic member (20). The first magnetic member is a hollow tube with an open end. The first magnetic member has a first face (162) and a second face (164) at a first end (122) thereof The first face and the second face have opposing polarities. The second magnetic member is a cylinder. The second magnetic member is received in the first magnetic member in a such a manner as to be rotatable relative to the first magnetic member. The second magnetic member has a third face (242) and a fourth face (244) at a first end thereof adjacent the first end of the first magnetic member. The third face and the fourth face have opposing polarities.

Abstract: A hinge assembly (100) includes a sleeve (10), a first magnetic member (20), a second magnetic member (20), and a locking member (40). The sleeve is hollow with an open end. The first magnetic member has a first face (242) and a second face (444) at a first end (232) thereof. The first face and the second face have opposing polarities. The second magnetic member is a cylinder. The second magnetic member is received in the sleeve and rotatable relative to the first magnetic member. The second magnetic member has a third face (342) and a fourth face (344) at an end thereof facing the first end of the first magnetic member. The third face and the fourth face have opposing polarities. The locking member is disposed at the open end of the sleeve and fixing connected with sleeve.

Abstract: A video coding/decoding buffering apparatus and a buffering method thereof are provided. The method codes/decodes a current macro block to generate a corresponding unfiltered current macro block data, and a right data area and a bottom data area of the unfiltered current macro block data are stored. The unfiltered current macro block data is filtered to generate a filtered current macro block data, and a right data area and a bottom data area of the filtered current macro block data are stored. The stored data areas are used to code/decode the associated macro blocks.

Abstract: An enclosure of a mobile phone with changeable panel includes a front cover (1), a panel (2), a rotatable holder (3), and a spring (4). The front cover defines a through hole (16) and latch slots (171, 172). The panel has projections (241, 242) at an edge thereof, and the projections can be engaged in the latch slots of the front cover. The panel further has a hole (25) corresponding to the through hole of the front cover. The holder has a latch portion (33), and the spring is engaged around the holder. The holder with the spring is received in the hole of the panel, and the holder is further received in the through hole of the front cover. The holder is rotated and the spring is compressed, thereby securely holding the panel on the front cover.

Abstract: A hinge (300) includes a cam (32), a cam follower (30), a torsional spring (31), and a can (33). The cam includes a round flange (321), with a notch (321b) defined therein. The cam follower connects with the cam, and includes an engaging ring (301) around an open end thereof and a projection (303) on an inner wall thereof. The projection is removably engaged in the notch of the cam. The spring is twisted and attached in the cam follower, with one end fixed on the cam follower and the other end fixed on the cam. The can defines a groove (334) rotatably receiving the engaging ring of the cam follower, and a guiding hole (335) movably receiving the cam. The hinge has a relatively simple and stable unified structure.

Abstract: A connecting structure for a battery case and a main body of a portable electronic device comprises a base (1), a connecting member (2), a cover (3), a shaft (4), a spring module (5) and a cylinder (6). The base has a receiving part (163) and a recessed portion (194). A hinge (22) is formed on one end of the connecting member. The cover has a track (322) and the connecting member can slide along the track. The connecting member is connected to the cylinder, and the shaft extends through the cylinder and is received in the receiving part of the base.

Abstract: A hinge mechanism includes a fixed member (20), two rolling elements (40), an elastic member (60), a rotational member (50) and a shaft (30). The fixed member has a flange (201) and a stop portion (202) thereof. Two first hollows (2022) are defined in the end part of the flange. Each rolling element has two rolling portions (402, 403). The rotational member includes a main portion (51) defined two hemisphere second hollows (511), and a middle portion (53) defining two receiving chambers (531) therein for receiving the rolling bodies. The first and second rolling portions of each rolling element are respectively received in the first hollow and the second hollow. The shaft extends through the fixed member, the elastic member and the rotational member. One end of the elastic member resists the rotational member and the other end of the elastic member is fixed in the longitudinal direction of the shaft.

Abstract: A hinge assembly (200) includes a button (3), a retaining member (4), a fixing seat (5), a control member (6), a first spring (7), a follower (10), a cam (30), a second spring (9) and a shaft (20). The button has at least one pushing portion (31). The control member has at least one receiving groove (61), and the pushing portion is received in each receiving groove. Each pushing portion resists the control member. The first spring provides an elastic force to the control member. The cam includes a cam hole having an inner screw thread (342). The second spring provides an elastic force to make the cam and the follower resist each other. The shaft defines an outer screw thread (233). The outer screw thread engages with the inner screw thread of the cam.

Abstract: A hinge assembly (10) includes a shaft (400), a barrel portion (200), and a plurality of roll elements (300). The shaft has an outer screw thread (404) formed at one end thereof. The barrel portion has an inner screw thread (207) and a groove (210) formed in the inner surface thereof. The inner screw thread is threadingly engaged with the outer screw thread of the shaft. The roll elements are received in the groove of the barrel portion and are rotatable relative to the shaft and the barrel portion.

Abstract: A hinge mechanism (20) includes a mounting member (12), at least one retractable elastic shaft (14) and a rotating member (18). The retractable elastic shaft has two opposite ends. The mounting member is located at one end of the retractable elastic shaft and defines at least one first hollow (125). The rotating member is located at the other end of the retractable elastic shaft and defines at least one second hollow (187). The first and second hollows respectively receive two ends of the retractable elastic shaft. The mounting member is rotatable relative to the rotating member to drive the retractable elastic shaft to move between a first position where the retractable elastic shaft is slantwise to an axis of the rotating member and a second position where the retractable elastic shaft is parallel to the axis of the rotating member. The hinge mechanism is easy to be manufactured.