Abstract: In one embodiment, the invention is a moment-based characterization waveform for static timing analysis. One embodiment of a method for mapping a timing waveform associated with a gate of an integrated circuit to a characterization waveform includes using a processor to perform steps including: computing one or more moments of the timing waveform and defining the characterization waveform in accordance with the moments.

Abstract: In one embodiment, the invention is a moment-based characterization waveform for static timing analysis. One embodiment of a method for mapping a timing waveform associated with a gate of an integrated circuit to a characterization waveform includes using a processor to perform steps including: computing one or more moments of the timing waveform and defining the characterization waveform in accordance with the moments.

Abstract: A method and apparatus for collecting information about an event in which a user accesses the Internet through the system of a first Internet Service Provider with whom the user does not have an account. The apparatus includes a first server that creates a record of the user's Internet usage and sends the record to a second server. The second server collects records from a plurality of Internet Service Providers and forwards the records to a third server on a regular basis. The third server processes the data in the plurality of records and generates a report showing how much money the first Internet Service Provider is owed for allowing the user to access the Internet through the system of the first Internet Service Provider.

Abstract: A method and apparatus for collecting information about an event in which a user accesses the Internet through the system of a first Internet Service Provider with whom the user does not have an account. The apparatus includes a first server that creates a record of the user's Internet usage and sends the record to a second server. The second server collects records from a plurality of Internet Service Providers and forwards the records to a third server on a regular basis. The third server processes the data in the plurality of records and generates a report showing how much money the first Internet Service Provider is owed for allowing the user to access the Internet through the system of the first Internet Service Provider.

Abstract: A spanner comprises a box end that has an inner periphery consisting of a number of wall faces to define a first polygonal receiving space. Each wall face includes a groove defined therein. The grooves of the wall faces together define a second polygonal receiving space. At least one of the grooves includes a closed first end and an open second end.

Abstract: A spanner comprises a box end that has an inner periphery consisting of a number of wall faces to define a first polygonal receiving space. Each wall face includes a groove defined therein. The grooves of the wall faces together define a second polygonal receiving space. At least one of the grooves includes a closed first end and an open second end.

Abstract: A spanner comprises a box end that has an inner periphery consisting of a number of wall faces to define a first polygonal receiving space. Each wall face includes a groove defined therein. The grooves of the wall faces together define a second polygonal receiving space. At least one of the grooves includes a closed first end and an open second end.

Abstract: A method and apparatus for collecting information about an event in which a user accesses the Internet through the system of a first Internet Service Provider with whom the user does not have an account. The apparatus includes a first server that creates a record of the user's Internet usage and sends the record to a second server. The second server collects records from a plurality of Internet Service Providers and forwards the records to a third server on a regular basis. The third server processes the data in the plurality of records and generates a report showing how much money the first Internet Service Provider is owed for allowing the user to access the Internet through the system of the first Internet Service Provider.

Abstract: A tool rack assembly comprises a board and a tool rack detachably mounted to the board. In another embodiment, a tool try-on device is provided comprises a board and a rotating member rotatably mounted to the board. The rotating member is engageable with an end of a tool. The rotating member moves in a direction transverse to a plane on which the board lies when the tool engaged with the rotating member is turned.

Abstract: A reversible ratchet wrench includes a handle having a driving head defining a driving chamber, a receiving chamber defined in the handle, a retaining recess defined in the driving chamber and connecting to the receiving chamber, and a driving member secured in the driving chamber and provided with a plurality of tooth-shaped first retaining portions. A direction control device includes a direction control member rotatably mounted in the receiving chamber, a retaining member pivotally mounted in the retaining recess and having a first side provided with a plurality of tooth-shaped second retaining portions meshing with the tooth-shaped first retaining portions, a pressing member rotated by the direction control member and slidably rested on a second side of the retaining member for pivoting the retaining member, and an elastic member urging the pressing member on the second side of the retaining member.

Abstract: A process for manufacturing ratchet wheels including the steps of: forming a cylindrical forging billet by hot or cold forging, the forging billet having a thru hole of inter-communicating recesses which are pre-formed in a forging die; providing a broach having teeth formed thereon; machining the forging billet into a workpiece having a sidewall with two annular grooves on the sidewall; forming a semi-product having a driving recess which is complementary in shape to the teeth by operating the broach through the workpiece along the thru hole; and forming a finished product having a plurality of teeth on a sidewall thereof by milling the semi-product.

Abstract: A tool rack assembly comprises a board and a tool rack detachably mounted to the board. In another embodiment, a tool try-on device is provided comprises a board and a rotating member rotatably mounted to the board. The rotating member is engageable with an end of a tool. The rotating member moves in a direction transverse to a plane on which the board lies when the tool engaged with the rotating member is turned.

Abstract: The invention provides a knowledge management system particularly suited for use in the integrated circuit design environment. The system allows administrators to define standardized component types. Instantiated components versions comprise “deliverables” and “attributes.” Deliverables comprise a file or directory of files or groups of files or directories that perform a common function and are characterized by the system in a standardized manner. Attributes comprise metadata describe the component version. By the abstraction of design files into deliverables, the systems can work with design files originating from any source and having different structures and still make those design files available by other designers in a uniform manner for efficient reuse of pre-qualified components. Tasks in the design flow can be tracked in the system. The system may also include a communications application, an issue tracking application, and an audit trail application.

Abstract: A process for manufacturing ratchet wheels comprising the steps of preparing wax patterns of the finished product of ratchet wheels, stacking the wax patterns atop one another to form a pattern tree; dipping the tree-link pattern into a slurry and they drying the same so as to from a shell; breaking the shell when the molten metal solidifies so as to obtain cast products of the ratchet wheels; polishing and cleaning the cast products; processing the cast products with a CNC lathe to define two annular grooves on respective sidewalls of the cast products such that the same are made annular semi-products; and processing the semi-products by milling so as to define a plurality of teeth on respective sidewalls of the semi-products such that the same are made finished products.

Abstract: A tool rack assembly comprises a board and a tool rack detachably mounted to the board. In another embodiment, a tool try-on device is provided comprises a board and a rotating member rotatably mounted to the board. The rotating member is engageable with an end of a tool. The rotating member moves in a direction transverse to a plane on which the board lies when the tool engaged with the rotating member is turned.

Abstract: A spanner comprises a box end that has an inner periphery consisting of a number of wall faces to define a first polygonal receiving space. Each wall face includes a groove defined therein. The grooves of the wall faces together define a second polygonal receiving space. At least one of the grooves includes a closed first end and an open second end.

Abstract: A handle includes an upper portion, a lower portion secured to the upper portion and formed with hardness less than that of the upper portion and at least one aperture defined therein. The at least one aperture is located between the upper and lower portions. The at least one aperture is defined via an upper face and a lower face. The upper face of the at least one aperture is part of a lower face of the upper portion. The lower face of the at least one aperture is part of an upper face of the lower portion. The upper face of the at least one aperture is arc-shaped. The lower face of the at least one aperture is arc-shaped. The handle includes one, two or three apertures. The upper portion includes a plurality of ribs formed thereon. The upper portion includes two ends to be attached to a case. The first and second portions are formed together via injection molding.

Abstract: A spanner comprises a box end that has an inner periphery consisting of a number of wall faces to define a first polygonal receiving space. Each wall face includes a groove defined therein. The grooves of the wall faces together define a second polygonal receiving space. At least one of the grooves includes a closed first end and an open second end.

Abstract: A tool rack assembly includes a board and a tool rack detachably mounted to the board. In another embodiment, a tool try-on device is provided including a board and a rotating member rotatably mounted to the board. The rotating member is engageable with an end of a tool. The rotating member moves in a direction transverse to a plane on which the board lies when the tool engaged with the rotating member is turned.

Abstract: A process for making ratchet wheels includes a step of providing a work with a first end and a second end, a step of punching the work by means of a punch so as to define a large recess through the second end, a step of cutting away the first end of the work, a step of defining two annular grooves in a periphery of the work and a step of forming a plurality of teeth on the work. The process may include, before the step of cutting away the first end of the work, a step of punching the work in order to define a small recess with a diameter smaller than that of the large recess, a step of punching the work so as to define an opening with a diameter smaller than that of the small recess wherein the opening extends through the first end of the work. The process may include a step of defining a shallow recess in the second end of the work before the step of defining the large recess.