Abstract: A multilayer interconnection board (10) comprises a dielectric substrate (11), a through-hole (15), a signal line (12) having a large width section (12A) and a small width section (12B) connected with the through-hole (15), and a ground layer (13, 14). A length L (mm) of the small width section (12B) meets the formula of 0<L?(3×1010)/(F×??), wherein, ? denotes the dielectric constant of the dielectric substrate (11) and F (Hz) denotes the frequency of a signal transmitted through the signal line (12). The ratio (W2/W1) of a line width W2 of the small width section (12B) relative to a line width W1 of the large width section (12A) is determined to be smaller as the length of a stub portion of the through-hole (15) becomes larger.

Abstract: It is an object of the present invention to provide a low density parity check codes decoder that can decode an LDPC code with an arbitrary coding rate by the same configuration. The low density parity check codes decoder according to the present invention is configured to enable decoding of an LDPC code constituted by a base matrix of Mbmax rows and Nbmax columns and a permutation matrix as an element of the base matrix.

Abstract: A light emitting device of the present invention includes: a substrate including wire patterns separated from each other on a basic material and a runner section to which sealing resin is poured, which runner section is a space between the wire patterns; a light emitting element die-bonded on the substrate; and a resin section in which the light emitting element is sealed using the sealing resin poured via the runner section.

Abstract: A resin molding die includes: a cavity; a resin inlet through which a liquid resin to be cured is injected into the cavity; and an air vent through which air is released to an exterior space of the resin molding die during injection of the resin, the air vent being provided on an opposite side from the resin inlet with respect to the cavity.

Abstract: An electrical connector assembly comprises first and second connectors (20 and 40), each having contact portions arranged in a direction perpendicular to the plugging direction. The first connector (20) has a pair of guide portions (36) provided at sides thereof and each having guide surfaces (36A and 36B). The second connector comprises (40) has a pair of guided portions (41), each having a guided surface (41A) which is guided by the guide surface when the second connector is plugged into the first connector. At least one of the guide and guided surfaces has a relief recess (36C and 41C) in a middle thereof to permit large inclination of the second connector with respect to the first connector when the second connector is removed from the first connector.

Abstract: An electrical connector includes an insulative housing (2) attachable to a first board and having a receiving recess (8) for receiving a second board in a first direction; and a plurality of terminals (3) arranged in the receiving recess in a second direction perpendicular to the first direction. Each terminal (3) has a pair of contact sections (14, 15) to be brought into spring contact with a pair of connection lands (5) provided on front and back edge sections (20) on front and back surfaces of a second board. The pair of connection lands (5) on the front and back edge sections are short-circuited and offset in the second direction. The pair of contact sections are offset in the second direction.

Abstract: A multilayer interconnection board (10) comprises a dielectric substrate (11), a through-hole (15), a signal line (12) having a large width section (12A) and a small width section (12B) connected with the through-hole (15), and a ground layer (13, 14). A length L (mm) of the small width section (12B) meets the formula of 0<L?(3×1010)/(F×??), wherein, ? denotes the dielectric constant of the dielectric substrate (11) and F (Hz) denotes the frequency of a signal transmitted through the signal line (12). The ratio (W2/W1) of a line width W2 of the small width section (12B) relative to a line width W1 of the large width section (12A) is determined to be smaller as the length of a stub portion of the through-hole (15) becomes larger.

Abstract: An intermediate electrical connector comprises a circuit board (10) having a plurality of contact portions (11) arranged on opposed edges thereof to which two connectors are attached in opposed directions, respectively, and a pair of supported portions (13, 14) provided at ends thereof in an arrangement direction of the contact portions. The intermediate electrical connector further comprises a guide member (20) holding the circuit board and having a support portion (21) which is brought into contact with an face of the circuit board and a pair of columns (22,13) each having a holding portion (24, 25). The supported portion has an asymmetric shape and the holding portions has a corresponding shape for receiving the asymmetric shape of the supported portion.

Abstract: An electrical connector includes an insulative housing (2) attachable to a first board and having a receiving recess (8) for receiving a second board in a first direction; and a plurality of terminals (3) arranged in the receiving recess in a second direction perpendicular to the first direction. Each terminal (3) has a pair of contact sections (14, 15) to be brought into spring contact with a pair of connection lands (5) provided on front and back edge sections (20) on front and back surfaces of a second board. The pair of connection lands (5) on the front and back edge sections are short-circuited and offset in the second direction. The pair of contact sections are offset in the second direction.

Abstract: An electrical connector assembly comprises first and second connectors (20 and 40), each having contact portions arranged in a direction perpendicular to the plugging direction. The first connector (20) has a pair of guide portions (36) provided at sides thereof and each having guide surfaces (36A and 36B). The second connector comprises (40) has a pair of guided portions (41), each having a guided surface (41A) which is guided by the guide surface when the second connector is plugged into the first connector. At least one of the guide and guided surfaces has a relief recess (36C and 41C) in a middle thereof to permit large inclination of the second connector with respect to the first connector when the second connector is removed from the first connector.

Abstract: An intermediate electrical connector comprises a circuit board (10) having a plurality of contact portions (11) arranged on opposed edges thereof to which two connectors are attached in opposed directions, respectively, and a pair of supported portions (13, 14) provided at ends thereof in an arrangement direction of the contact portions. The intermediate electrical connector further comprises a guide member (20) holding the circuit board and having a support portion (21) which is brought into contact with an face of the circuit board and a pair of columns (22,13) each having a holding portion (24, 25). The supported portion has an asymmetric shape and the holding portions has a corresponding shape for receiving the asymmetric shape of the supported portion.

Abstract: A resin molding die includes: a cavity; a resin inlet through which a liquid resin to be cured is injected into the cavity; and an air vent through which air is released to an exterior space of the resin molding die during injection of the resin, the air vent being provided on an opposite side from the resin inlet with respect to the cavity.

Abstract: A resin molding die includes: a cavity; a resin inlet through which a liquid resin to be cured is injected into the cavity; and an air vent through which air is released to an exterior space of the resin molding die during injection of the resin, the air vent being provided on an opposite side from the resin inlet with respect to the cavity.

Abstract: An electrical connector connection system for connecting a pair of receptacle connectors (10) comprises an intermediate board (20) which interconnects the receptacle connectors (10) and has signal and ground connection portions (21 and 22) on opposite edges thereof and signal transmission portions (24) for interconnecting corresponding signal connection portions (21) and a ground transmission portion (23) for interconnecting the ground connection portions (22).

Abstract: A resin molding die includes: a cavity; a resin inlet through which a liquid resin to be cured is injected into the cavity; and an air vent through which air is released to an exterior space of the resin molding die during injection of the resin, the air vent being provided on an opposite side from the resin inlet with respect to the cavity.

Abstract: An ejector comprises an ejector bar (2), a pressed section (3) provided at an end of the ejector bar, a press button (4) rotatably linked to the pressed section for rotation between an operation position where the press button projects in the lengthwise direction of the ejector bar and a stand-by position at right angles with the ejector bar and an engaging member (8) having at one end an engaging claw (9) which is movable between an ejection position where a card is inserted or ejected and an engaging position where the engaging claw engages the rear end of a card to prevent accidental ejection of the card, the press button and the engaging member being linked such that when the press button is at the operational position, the engaging member is at the ejection position while when the press button is at the stand-by position, the engaging member is at the engaging position.

Abstract: A data processor in which special regions 31a, 31b are set in the backmost screen, and comprises means for specifying the functions to be started corresponding to them, and means for registering the specified special regions 31a, 31b and the function to be started corresponding to them in correspondence to a specific wallpaper 31. When coordinates data of the position selected by the cursor in the backmost screen is included in the special regions 31a, 31b, the function registered in correspondence thereto is started. In such constitution, complicated operation for starting up a required function by accurately selecting a small icon by the cursor is eliminated, and the working efficiency and controllability are enhanced.

Abstract: A television system in which two-way television sets communicate with a server via a communication network. Each interactive television includes a program control unit for controlling interactive data exchange between a viewer, a response receiving unit for identifying a response from the viewer to the program from input signals to the television, and a communication control unit for controlling communications with other nodes. The server includes a communication control unit for controlling communications with other nodes, a program information DB storing procedures in units of programs, a response processing function for arranging response data in units of programs.

Abstract: A module frame work to which outfits are mounted is manufactured with high accuracy and is installed to a larger structure without adjustment operation. The module frame work comprises a pair of horizontal and mutually parallel main beams, a pair of beam members connecting the main beams, support columns vertically extending from each of junctions of the main beams with the beam members and at least a connector on an end of any of the main beams, beam members and support columns.

Abstract: Equipments such as outfits or plant elements are divided according to their functions. Some or all of equipments with related functions are accommodated as a module into a frame so that a plurality of frame modules are formed. The frame module is arranged in a space or the frame modules are arranged in three-dimensionally in the space.