Abstract: A cup-shaped flexible externally toothed gear of a wave gear device, wherein a diaphragm plate slopes from a diaphragm internal peripheral edge portion contiguous to a boss part toward a diaphragm external peripheral edge portion contiguous to a cylindrical body portion in a direction in which the diaphragm external peripheral edge portion is at greater distance from an open end of the cylindrical body portion with respect to an orthogonal plane orthogonal to a central axis line of the device. The length dimension of the diaphragm plate and the length dimension of the cylindrical body portion in the axial direction can be increased. Therefore, the fatigue strength of the diaphragm plate and the load capacity of the wave gear device in which the flexible externally toothed gear has been incorporated can be increased.

Abstract: In a wave gear device, an involute tooth profile with the low pressure angle ? (<20°) is employed as a basic tooth profile of external teeth of a flexible external gear. In the principal section of the external teeth, the tooth depth thereof satisfies 2?0mn=2(1+c) mn (deflection coefficient ?0=1+c, 0<c<0.5), which is larger than the standard one. The shifting of the teeth which takes into account coning is performed along the tooth trace direction of the external teeth, so that straight portions of a rack tooth profile on the respective sections perpendicular to the axis in the tooth trace direction of the external teeth are conformed as viewed along the tooth trace direction. The rack tooth profile of the involute tooth profile is a straight line.

Abstract: The present invention aims to simulate a response more similar to a actual machine while inhibiting load increase in analog operation. Program configuration of the present invention is a component of a simulation program for circuit design, which is executed by a computer. The computer includes an operation portion, a storage portion, a manipulation portion, and a display portion, so that the computer exerts a function of a circuit design simulator, and as a macro model of an operational amplifier for use in the circuit design simulator, enabling the computer to act by simulating a response of the operational amplifier on the circuit design simulator. The macro model of the operational amplifier includes a control portion (LMT1) for generating output exception in the event of input exception or power supply exception of the operational amplifier.

Abstract: A rigid internal gear and a flexible external gear of a wave gear drive are spur gears of module m. The number of teeth of the external gear is smaller by 2n (n is a positive integer) than that of the internal gear. The deflection of the major axis of the elliptical rim neutral line on the principal cross-section of the external gear is set at 2?mn (?<1). On the principal cross-section, the meshing of both gears is approximated by rack meshing. The locus M of movement of a tooth of the external gear caused by the rotation of a wave generator is determined. A part AC of the locus M of movement from the inflection point A of the locus M of movement to the deepest position B of meshing is determined on the entering side of meshing of the teeth toward the major axis of the locus M of movement.

Abstract: A wave gear drive comprises a circular rigid internal gear and a flexible external gear inside the rigid internal gear. A wave generator in the flexible external gear flexes the flexible external gear into an elliptical shape. The cross-section of the flexible external gear perpendicular to the axis at a point in the tooth trace direction of the flexible external gear is set as the main cross-section. The rigid internal gear and flexible external gear are gears with a module m, and the flexible external gear has a number of teeth that is smaller than the number of teeth of the rigid internal gear. The moving route M of a tooth of the flexible external gear with respect to a tooth of the rigid internal gear that accompanies rotation of the wave generator when meshing of the teeth in the main cross-section is approximated by rack meshing.

Abstract: Embodiments of the present invention provide a production planning method and system. Where a manufacturing apparatus is shared by a plurality of products in a production line, if a manufacturing (production) availability number is changed, a cause parameter is automatically investigated so that a production plan with high precision can be prepared in a short time. With respect to a production plan as the previous/current comparison objects, a production process used in the production plan in which a change occurs, is extracted. From the production process, a parameter item to be used in the production capacity evaluation is extracted for all products, a difference comparison is made between the value of the previous parameter and the value of the current parameter, so that the parameter item as the cause is specified. The combination of the cause parameter items is calculated, and a cause parameter list is prepared.

Abstract: A rigid internal gear and a flexible external gear of a wave gear drive are spur gears of module m. The number of teeth of the external gear is smaller by 2n (n is a positive integer) than that of the internal gear. The deflection of the major axis of the elliptical rim neutral line on the principal cross-section of the external gear is set at 2K mn (K<1). On the principal cross-section, the meshing of both gears is approximated by rack meshing. The locus M of movement of a tooth of the external gear caused by the rotation of a wave generator is determined. A part AC of the locus M of movement from the inflection point A of the locus M of movement to the deepest position B of meshing is determined on the entering side of meshing of the teeth toward the major axis of the locus M of movement.

Abstract: Embodiments of the present invention provide a production planning method and system. Where a manufacturing apparatus is shared by a plurality of products in a production line, if a manufacturing (production) availability number is changed, a cause parameter is automatically investigated so that a production plan with high precision can be prepared in a short time. With respect to a production plan as the previous/current comparison objects, a production process used in the production plan in which a change occurs, is extracted. From the production process, a parameter item to be used in the production capacity evaluation is extracted for all products, a difference comparison is made between the value of the previous parameter and the value of the current parameter, so that the parameter item as the cause is specified. The combination of the cause parameter items is calculated, and a cause parameter list is prepared.

Abstract: A wave gear drive comprises a circular rigid internal gear and a flexible external gear inside the rigid internal gear. A wave generator in the flexible external gear flexes the flexible external gear into an elliptical shape. The cross-section of the flexible external gear perpendicular to the axis at a point in the tooth trace direction of the flexible external gear is set as the main cross-section. The rigid internal gear and flexible external gear are gears with a module m, and the flexible external gear has a number of teeth that is smaller than the number of teeth of the rigid internal gear. The moving route M of a tooth of the flexible external gear with respect to a tooth of the rigid internal gear that accompanies rotation of the wave generator when meshing of the teeth in the main cross-section is approximated by rack meshing.

Abstract: A diaphragm of a cup-shaped flexible external gear of a cup-shaped wave gear device having a high reduction ratio of 100 or higher is given a thickness t in a position of a radius r of the diaphragm whereby the thickness t is a value that satisfies the expression A/r2 when A is a constant. The constant A is preferably a value that satisfies the expression 0.0014 D3<A<0.0026 D3, where D is a pitch diameter of the flexible external gear, and the range of the radius r whereby the thickness t is defined as described above in the diaphragm is preferably set to satisfy the expression 0.6 d<r<0.4 D, where d is a diameter of a discoid rigid boss made continuous with an internal peripheral end of the diaphragm. Stress concentration can be alleviated, and it is possible for the allowable transmission torque to be increased compared to the prior art.

Abstract: Embodiments of the invention provide a computer-aided production planning method and system for accurately and quickly drafting a production plan for a given period for a production system employing a production line with a salvage process.

Abstract: Embodiments of the invention provide a computer-aided production planning method and system for accurately and quickly drafting a production plan for a given period for a production system employing a production line with a salvage process.

Abstract: A diaphragm of a cup-shaped flexible external gear of a cup-shaped wave gear device having a high reduction ratio of 100 or higher is given a thickness t in a position of a radius r of the diaphragm whereby the thickness t is a value that satisfies the expression A/r2 when A is a constant. The constant A is preferably a value that satisfies the expression 0.0014D3<A<0.0026D3, where D is a pitch diameter of the flexible external gear, and the range of the radius r whereby the thickness t is defined as described above in the diaphragm is preferably set to satisfy the expression 0.6d<r<0.4D, where d is a diameter of a discoid rigid boss made continuous with an internal peripheral end of the diaphragm. Stress concentration can be alleviated, and it is possible for the allowable transmission torque to be increased compared to the prior art.

Abstract: A semiconductor integrated circuit device includes a plurality of internal circuits formed in a circuit forming region; a plurality of power lines separately connected to the internal circuits; a signal wire routed between the internal circuits; and a protection circuit connected to the power lines, the protection circuit including a parallel circuit having a first rectifying element formed in a p-type semiconductor region and a second rectifying element formed in an n-type semiconductor region.

Abstract: In a semiconductor integrated circuit device comprising electrodes, loop wires, an input/output circuit, and an internal circuit arranged in order from a peripheral portion to a central portion of a substrate, and a pair of power wires each having a path from an associated one of the electrodes to the internal circuit through an associated loop wire. The pair of power wires are routed such that a connecting point of the one power wire from the associated loop wire to the internal wire corresponds to a connecting point of the other power wire from the associated loop wire to the internal wire, and the connecting point of the other power wire from the loop wire to the internal circuit corresponds to a connecting point of the one power wire from the associated electrode to the associated loop wire.

Abstract: An IC for an active terminator has not only a plurality of pairs each corresponding to a different line of a bus and including a terminal resistor and a buffer amplifier which serves to output a specified voltage through the corresponding terminal resistor to the corresponding bus line, but also a similar pair of an additional buffer amplifier and an additional resistor. One end of the additional resistor is connected to the additional buffer amplifier and the other end of the additional resistor is connected to a pair of pads. Each of these terminal resistors may be connected to adjustment resistors each connected to its own additional buffer amplifier serving to output a specified voltage through the corresponding adjustment resistor to the corresponding line.

Abstract: A flexible engagement gear device (11) has a silk-hat shaped flexible external gear (13) which has a body part (22), a diaphragm (23) and a boss (25). The diaphragm (23) has a plate-shaped part (28), a sectional shape of which, when cut along a plane including a device axial line (11a), is defined at one side by a straight line (232) extending in a radial direction, and at the other side by a first convex circular arc (240), a concave circular arc (250) and a second convex circular arc (260) in this order from the side of the boss. Among these arcs, the first convex arc (24) has the largest curvature, while the concave circular arc (25) has the smallest curvature. The concave circular arc (250) is positioned at the middle of the plate-shaped part (28), the thickness of which is the smallest in the plates-shaped part (28). If the flexible external gear having this cross section is used, when the axial length is reduced, the stress concentration can be relieved without increasing the outer diameter.

Abstract: A non-volatile semiconductor memory IC has both a flash memory and a CPU mounted thereon. The CPU is provided with a ROM which stores a program code and a memory device such as a SRAM. The CPU functions by the stored program code to perform various functions such as accessing the flash memory to thereby carry out a test to determine a good/bad condition of the flash memory, temporarily storing results of the test in the memory device, and copying the test results from the memory device into the flash memory.