Abstract: An apparatus for accessing and transferring optical data has a memory supporting the page-mode function, an accessing device used to access an error correction block from the optical storage medium and store it into the memory to make the portion of data in the same column of the error correction block stored in a particular locality greater than the portion of data in the same row of the error correction block stored in the particular locality, and an error correction decoder used to access the data of the error correction block to perform the error correction process. The apparatus uses the feature of the DRAM, such as page-mode function, and the data arrangement of the memory to improve the access efficiency of the memory. The apparatus can thus increase the access speed of the error correction decoder and improve the accessing efficiency.

Abstract: A socket assembly has a socket and a heat sink module detachably mounted on the socket. The socket has a base, a sliding board mounted on the base, a lid disposed upon the base and an actuator disposed between the base and the cover. The heat sink module has a fastening frame surrounding the base, a cover pivotally assembled to an end of the fastening frame and a heat sink mounted on the cover. The cover has a latching portion which latches with a top wall of the lid when the cover rotates to a closed position. The heat sink is brought by the cover to pass an open defined on the lid and to abut against an IC package seating on the sliding board.

Abstract: A test socket assembly (100) comprises a test socket (10) and a heat dissipation module (5) assembled on the test socket (10), the test socket (10) comprises a base (1) with a plurality of contacts (12) received therein, a cover (3) with a window (33) assembled on the base (1), the heat dissipation module (5) comprises an interlock member (53) going through the window (33) to interlock with the cover (3) to make the heat dissipation module (5) to be securely located on the test socket (10).

Abstract: A test socket comprising an insulative base with a plurality of contacts received in the base and a cover pivotally mounted to one end of the base. The cover comprises a pusher with an opening extending therethrough and a lid aligned with the pusher. The lid has a through hole corresponding to the opening of the pusher. Between the pusher and the lid have a plurality of elastic members for making the lid moveably with respect to the pusher.

Abstract: A NROM memory device includes an array of memory cells and first and second bit lines. The first and second bit lines are coupled to opposite sides of the memory cells. During an erase operation, one of the sides of the memory cells receives a positive voltage and the other side couples to a common node or a limited current source. Methods are also disclosed that can easily screen for marginal memory cells based on a threshold voltage distribution of the memory cells.

Abstract: A heat sink for a RAM includes a first and a second heat dissipating plate, on each of which a retaining tongue, a pair of locating tabs, and a catch tab are provided. The retaining tongue includes an expanded head portion and a narrowed root portion, and the head portion is a tab having a specific shape. The catch tab is provided with an expanded through retaining hole and a narrowed through root hole, which are configured to match the shape of the heat portion and the root portion of the retaining tongue, respectively. When the two heat dissipating plates are connected to each other, once the head portions and root portions of the retaining tongues are extended through the corresponding retaining holes and root holes of the catch tabs, the retaining tongues will not unexpectedly separate from the catch tabs.

Abstract: A burn-in socket, for electrically connecting an IC package to a print circuit board, includes a base, a lid assembled upon the base and being movable up and down relative to the base and a latch pivotally linking to the base by a first shaft thereof. The latch defines a through hole which receives a second shaft pivotally linking to the lid. When being brought by the lid, the second shaft moves up and down in the through hole and drives the latch to rotate.

Abstract: An apparatus for writing data to an optical storage media and a servo control unit and a laser diode driver unit thereof. The apparatus making a laser diode emit light includes a servo control unit and a laser diode driver unit. The servo control unit includes a control unit for controlling a burning procedure and a modulation unit for outputting an encoded signal. The laser diode driver unit receives the encoded signal and includes a PLL unit, a write strategy generation unit and a lock/unlock detection unit. The PLL unit outputs at least one of a second clock signal and a second data signal according to the encoded signal. The write strategy generation unit outputs a control signal to control the laser diode according to the second clock signal and the second data signal. The lock/unlock detection unit outputs a lock indicator or an unlock indicator to the control unit.

Abstract: An electrical contact comprises an upper contact pin, a lower contact pin and a spring enveloping between the upper contact pin and the lower contact pin. The upper contact pin has an upper contacting portion and a guiding portion, and the lower contact pin is coupled to the upper contact pin and has a lower contacting portion and a main portion extending from the contacting portion. The main portion of the lower contact pin includes two elastic arms, and each elastic arm has a first and a second locking protrusions engaging with a slot defined on the guiding portion of the upper contact pin respectively to reliably connect the upper contact pin and the lower contact pin.

Abstract: A method for layering lenses includes: plasma treating a lens surface; applying a removable ink layer onto the lens surface; applying at least one base ink layer over the removable ink layer; applying at least one colored ink layer over the base ink layer; and removing the removable ink layer. Additional steps may include drying the lens, sealing the sides of the lens, and applying liquid to the lens before removing the removable ink layer.

Abstract: A search method of a roaming service for registering a mobile station to a network service is provided. The search method comprises the step of searching for a registered public land mobile network (RPLMN) and registering to the RPLMN when the record of the RPLMN is existing and the RPLMN is found and the location registration is necessary. When the record of RPLMN is not existing, or the mobile station can not find an available base station, or the location registration is unsuccessful, or a scan timer expires, the steps of updating an available public land mobile network (PLMN) list and performing a location registration according to the available PLMN list is performed. The step of updating the PLMN list further comprises sorting the available PLMNs according to an order of preferred PLMNs corresponding to a current location of the mobile station, or according to a data transfer speed.

Abstract: A socket connector comprises an insulating base receiving a plurality of contacts, a movable frame assembled to the insulating base, at least one latch device pivotally assembled to the insulating base, and at least one actuating member corresponding to the latch device and retained on a sidewall of the movable frame. The at least one actuating member includes a driving portion disposed at inner edge of the sidewall of the movable frame and extending downwardly. The movable frame is able to move up and down relative to the insulating base. Each latch device includes a latching member having a pressing portion with a cuneiform outside surface. When the actuating member moves up and down together with the movable frame, the driving portion of the actuating member pushes the cuneiform outside surface of the pressing portion of the latch device to shift between a closed position and an opened position.

Abstract: The invention provides a method for receiving digital broadcast signals of a plurality of channels. The method comprises: storing a channel-parameter contrast table which includes parameter values of a plurality of parameters with which each of the plurality of channels is previously received; testing whether the digital broadcast signals of one of the plurality of channels can be received according to the parameter values stored in the channel-parameter contrast table to determine a receiving status; generating a plurality of channel numbers corresponding to each of the receivable channels of the plurality of channels according to the receiving statuses of the plurality of channels; and receiving the signals of a target channel according to the parameter values stored in the channel-parameter contrast table, wherein the target channel is one of the plurality of channels and selected by a user through the plurality of channel numbers.

Abstract: An electrical connector (100) for receiving a central process unit comprises: a first insulative housing (14) defining a number of receiving channels (141) extending along a first direction; a second insulative housing (13) located above the first insulative housing and defining a number of passageways (131) aligned to corresponding receiving channels; a third insulative housing (15) located below the first insulative housing and defining a number of holes (151) extending therethrough and aligned to corresponding passageways; and a number of thin, elongated contacts (11) received in the first, the second and the third insulative housing. Each thin, elongated contact has a contact portion (111) positioned above a top surface of the second insulative housing, a tail portion (112) extending through the holes of the third insulative housing, and a base portion (115) retained in the first and the second insulative housing.

Abstract: An electrical contact includes a first contact pin, a second contact pin and an elastic member surrounding the first contact pin and the second contact pin. Both of the first contact pin and the second contact pin include contacting portions. The first contact pin has a guiding portion including two lead-in arms and a stop portion between the two leading arms. The second contact has a main body and a protrusion on a top end of the main body. The leading arms define a guiding groove therebetween for the main body of the second contact pin moving up and down. The protrusion abuts against the stop portion of the first contact pin to prevent the second contact from sliding out of the guiding groove.

Abstract: The invention discloses a nano-fiber material, wherein the nano-fiber material is formed by spinning an ionic polymer into a nano-fiber nonwoven, and the ionic polymer is represented by the formula: wherein: R1 includes phenyl sulfonate or alkyl sulfonate; R2 includes R3 includes and m/n is between 1/50 and 50/1, q?0.

Abstract: The present invention discloses a bidirectional PNPN silicon-controlled rectifier comprising: a p-type substrate; a N-type epitaxial layer; a P-type well and two N-type wells all formed inside the N-type epitaxial layer with the two N-type wells respectively arranged at two sides of the P-type well; a first semiconductor area, a second semiconductor area and a third semiconductor area all formed inside the P-type well and all coupled to an anode, wherein the second semiconductor area and the third semiconductor area are respectively arranged at two sides of the first semiconductor area, and wherein the first semiconductor area is of first conduction type, and the second semiconductor area and the third semiconductor area are of second conduction type; and two P-type doped areas respectively formed inside the N-type wells, wherein each P-type doped area has a fourth semiconductor area neighboring the P-type well and a fifth semiconductor area, and wherein both the fourth semiconductor area and the fifth semico

Abstract: An electrical connector (1) for receiving an IC package includes a socket body (2) with a plurality of contacts (4) therein. A cover (3) is pivotally mounted with respect to the socket body (2) and defines an inner side close to the socket body (2) and an outer side opposite to the socket body (2). A heat sink (5) is provided to be mounted with the cover (3) by a plurality of fasteners (6). The fasteners (6) are inserted into the cover (3) and the heat sink (6) from the inner side of the cover (3).

Abstract: The disclosure describes queue management based on queue sets. A queue set comprises a group of packets or packet references that are processed as a single entity or unit. For example, when a queue set reaches the head of a queue in which it is stored, the entire queue set including its packets or packet references is passed for scheduling as a single unit. A queue set provides the benefit of a single operation associated with enqueuing and a single operation associated with dequeuing. Since only one operation on a queue is required for the typical case of several packets in a queue set rather than for every packet, the rate of queue operations may be significantly reduced. A queue set has a target data unit size, for example, a roughly equal number of packet bytes represented by each queue set, regardless of the number of packets referenced by a queue set.