Abstract: A method of extracting timing characteristics from transistor circuit data of modularity design products (a module) such as a CPU core in which the extracted timing characteristics are used for the timing verification of a circuit including a module to be extracted and timing constraints when logical synthesis or timing-driven layout is made. Particularly, since conditions fit for a timing rule of the module are included in timing characteristics when timing verification is executed by simulation, verification free of pseudo error is enabled. Also, the configuration of a timing characteristic library, a storage medium storing it and an LSI designing method using the storage medium are provided.

Abstract: A thread loop taker device for a zigzag sewing machine having a needle whose position is controlled by electronically stored data which cooperates with the thread loop taker device to thereby produce zigzag stitches. The thread loop taker device comprises a bobbin carrier, a rotational cylindrical member for supporting the bobbin carrier therein; a loop taker coaxial with and about the cylindrical member for rotation therewith, the loop taker having a beak extending from one end and in the direction of the rotation around a portion of the cylindrical member for catching a thread loop formed by the needle; cams rotating with the cylindrical member and engaging the opposite end of the loop taker for rotating the beak relative to the cylindrical member; and a pulse motor drivable in response to a change in the position of the needle so that, when this driving is transmitted to move the cams, the loop taker is actuated.

Abstract: A thread loop taker device for a zigzag sewing machine having a needle whose position is controlled by electronically stored data which cooperates with the thread loop taker device to thereby produce zigzag stitches. The thread loop taker device comprises a bobbin carrier, a rotational cylindrical member for supporting the bobbin carrier therein; a loop taker coaxial with and about the cylindrical member for rotation therewith, the loop taker having a beak extending from one end and in the direction of the rotation around a portion of the cylindrical member for catching a thread loop formed by the needle; cams rotating with the cylindrical member and engaging the opposite end of the loop taker for rotating the beak relative to the cylindrical member; and a pulse motor movable in two opposite directions in response to a change in the position of the needle so that, when this movement is transmitted to the cams, the loop taker is actuated.