Abstract: A biometric authentication unit includes a position detecting section for detecting a user's finger position from a pressure distribution detected by a right-side pressure detecting plate, a left-side pressure detecting plate, a front-side pressure detecting plate, a rear-side pressure detecting plate and a fingertip pressure detecting plate; corrects a finger vein pattern of a registrant data on the basis of the difference between the detected user's finger position and a correct position; collates the acquired user's finger vein pattern with the corrected registrant data; and authenticates whether the user is the registrant.

Abstract: A card connector which prevents a card from popping out when the card is discharged and is not easily broken. The card connector includes a base having a slot into which a card can be inserted, a slider which is provided at a position in the base to be abuttable on the card and which can be caused to slide, a spring forcing the slider in the discharging direction of the card, and a lock spring including a plate spring having a tip end engageable with an engagement recess of the card and a base end mounted on the slider. The tip end can be displaced in a direction away from the card, and base is provided with a first rib which abuts on the tip end of the lock spring to prevent the tip end from being displaced when the slider is positioned at the card pop-out preventing position.

Abstract: While a switch SW4 is connected to “a”-terminal side, offset of a differential output voltage “A?” of a D/A converter 500a (500b) is held in a comparator 400, and is reflected to a reference voltage. Thereafter, the switch SW4 is switched to a “b”-terminal side, and offset of a differential output voltage “A+” of the D/A converter 500a (500b) is measured by the comparator 400. An error signal is outputted to a counter 412 so as to count up the counter 412. Such an operation is repeatedly carried out in which the count value is added to 1.7 V and then the added count value is inputted into the D/A converter 500a (500b), and such a count value latched in a latch at timing when the error signal is inverted is defined as an offset correction value.

Abstract: The invention provides a card connector which prevents a card from popping out when the card is discharged and is not easily broken. The card connector comprises a base 100 having a slot 110 into which a card M can be inserted, a slider 200 which is provided at a position in the base 100 to be abuttable on the card and which can be slid, a spring 300 forcing the slider 200 in the discharging direction of the card M, and a lock spring 400 comprising a plate spring having a tip end 410 engageable with an engagement recess 10 of the card M and a base end 420 mounted on the slider 200, and the tip end 410 can be displaced in a direction away from the card M, and base 100 is provided with a first rib 130 which abuts on the tip end 410 of the lock spring 400 to prevent the tip end 410 from being displaced when the slider 200 is positioned at the card pop-out preventing position ?.

Abstract: A comparator with an offset canceling function and a D/A conversion apparatus capable of canceling an input/output offset with high accuracy using this comparator. To eliminate unbalance between right and left currents of the differential circuit making up the comparator, the phase of a single end output signal of the differential circuit is inverted and the inverted signal is fed back to one substrate of the differential pair MOS transistors as a substrate bias. Threshold voltages of the MOS transistors are changed and the current capacities of the transistors are adjusted in this way.

Abstract: While a switch SW4 is connected to “a”-terminal side, offset of a differential output voltage “A−” of a D/A converter 500a (500b) is held in a comparator 400, and is reflected to a reference voltage. Thereafter, the switch SW4 is switched to a “b”-terminal side, and offset of a differential output voltage “A+” of the D/A converter 500a (500b) is measured by the comparator 400. An error signal is outputted to a counter 412 so as to count up the counter 412. Such an operation is repeatedly carried out in which the count value is added to 1.7 V and then the added count value is inputted into the D/A converter 500a (500b), and such a count value latched in a latch at timing when the error signal is inverted is defined as an offset correction value.

Abstract: A comparator with an offset canceling function and a D/A conversion apparatus capable of canceling an input/output offset with high accuracy using this comparator. To eliminate unbalance between right and left currents of the differential circuit making up the comparator, the phase of a single end output signal of the differential circuit is inverted and the inverted signal is fed back to one substrate of the differential pair MOS transistors as a substrate bias. Threshold voltages of the MOS transistors are changed and the current capacities of the transistors are adjusted in this way.

Abstract: A roller mounting arrangement for a machine in which elongated material is shaped by rollers as the material progresses along a pathway. The rollers are mounted so that they are free to pivot and distribute forming pressure over a wider area of the material being shaped. The rollers have freedom to pivot about a plurality of axes. In a tandem mounting arrangement, the rollers have 3-axis freedom.

Abstract: A tube forming machine for making a tube from a sheet is disclosed. The forming rolls of this invention include various V-shaped rolls at least some of which are used as part of a three-point bending technique. The three-point bending technique entails the use of a V-shaped bottom roll and a narrow top roll. The sheet is shaped running the sheet through a gap between the narrow top roll and the V-shaped bottom roll. The technique allows a wide variety of tubing to be made from the same set of forming rolls, because the curvature obtained in a sheet can be varied by opening or closing the gap. A V-shaped forming roll disclosed herein is also used at a pinch roll stand with a second complementary V-shaped roll. The pinch roll stand of this invention creates an initial V-shaped sheet which facilitates the threading of the sheet at the start of a forming operation. Brimmed rolls are also disclosed.

Abstract: An exhaust manifold for an engine includes a manifold body 7 having a plurality of branch pipes and a common collecting chamber integrally connected to the branch pipes and communicating with an exhaust emission control device is divided into an upper half and a lower half at a boundary face extending in a direction of arrangement of the branch pipes. The upper and lower halves are made of steel plates and welded to each other. In the exhaust manifold, a welding mating coupler is formed by outer edges of the upper and lower halves, and a welding stepped superposing coupler is formed by inner edges of the upper and lower halves. Thus, during welding, it is possible to limit the misalignment of the upper and lower halves in a direction along the boundary face and the misalignment of the upper and lower halves in a direction perpendicular to the boundary face by cooperation of the mating coupler and the stepped superposing coupler.