Abstract: A spline connection structure includes a shaft portion having teeth with crowned tooth surfaces formed at equal intervals on an outer circumferential surface and a cylindrical portion having grooves into which the teeth of the shaft portion are fitted formed on an inner circumferential surface are connected. Two adjacent tooth surfaces facing each other are bent while maintaining a constant distance therebetween in a tooth width direction when viewed from a diameter direction of the shaft portion.

Abstract: The present disclosure relates to a spline connection structure in which a shaft portion having teeth with crowned tooth surfaces formed at equal intervals on an outer circumferential surface and a cylindrical portion having grooves into which the teeth of the shaft portion are fitted formed on an inner circumferential surface are connected, wherein two adjacent tooth surfaces facing each other are bent while maintaining a constant distance therebetween in a tooth width direction when viewed from a diameter direction of the shaft portion.

Abstract: A character generating system drives a printer engine to print characters in response to an instruction from a host computer. The characters to be printed by the printer information are normally generated on the basis of dot data stored in a cache memory via a print map memory under the control of e.g. a microprocessor. Since the cache memory is a volatile memory, its contents may be erased due to disconnetion of the power supply. In order to speed up the regeneration of the dot data in the cache memory, information relating to the dot data is stored in a non-volatile memory, and on reconnection of the power supply, that information is used together with vector information in a vector memory for regeneration of the dot data in the cache memory.

Abstract: A computer program product determines elementary circuits and initial values of flows in a pipe network including one or more source nodes and a plurality of demanding nodes. An upstream node and a downstream node of each pipe is determined. The upstream node has less total resistance than the downstream node to the source nodes. A pipe joined between an upstream node and a downstream node is selected as an upstream pipe of the downstream node. A pipe which is never designated as an upstream pipe is selected as a circuit origin pipe. A node level, which indicates the number of nodes included in the passage from the source node, is determined. An elementary circuit is determined, by tracing upstream nodes along a first route starting from a first node of the circuit origin pipe and along a second route starting from a second node of the circuit origin pipe in accordance with the node level of the upstream node of each pipe, until the first and second routes reach a same source node or a same demanding node.

Abstract: A method for determining elementary circuits and initial values of flows in a pipe network including one or more source nodes and a plurality of demanding nodes. An upstream node and a downstream node of each pipe is determined. The upstream node has less total resistance than the downstream node to the source node. A pipe joined between an upstream node and a downstream node is selected as an upstream pipe of the downstream node. A pipe which is never designated as an upstream pipe is selected as a circuit origin pipe. A node level, which indicates the number of nodes included in the passage from the source node, is determined. An elementary circuit is determined, by tracing upstream nodes along a first route starting from a first node of the circuit origin pipe and along a second route starting from a second node of the circuit origin pipe in accordance with the node level of the upstream node of each pipe, until the first and second routes reach a same source node or a same demanding node.

Abstract: In a controller for use in a printer, when line pitch information is set in a printer status storage unit by way of a line pitch setter, a distance setter determines a cursor/base line distance on the basis of the line pitch information, and a character pattern expander determines a base line from the cursor/base line distance, expands a dot pattern of a printing character in reference to the base line position and stores the expanded dot pattern in a buffer memory.

Abstract: An alignment disk having an adjust signal recorded thereon to maintain data interchangeability of a magnetic disk drive apparatus and loadable and unloadable to and from the magnetic disk drive apparatus, and method and apparatus for verifying a tracking errors of the magnetic disk drive apparatus are disclosed; the magnetic disk drive apparatus including magnetic head means for recording and reproducing data on and from a magnetic recording medium, a head carriage for carrying the magnetic head means, and drive means for driving the head carriage radially of a track of the magnetic recording medium; the alignment disk having a set of track diameter adjust signal pairs recorded on tracks equal to or larger in number than the number of phases of a stepping motor for driving the head carriage and corresponding to at least the excitation phases of the stepping motor; the set of track diameter adjust signal pairs each having an inner track signal and an outer track signal extending inward and outward from a cente