Abstract: An optical pickup device and an optical information recording and/or reproducing apparatus which make it possible to stably secure electrical wires at predetermined locations in a slide base when forming the slide base by covering a surface of a circuit core, which functions as an electrical wiring, with an external base portion, with a portion of the circuit core being exposed. The slide base includes a circuit core and an external base portion. The circuit core is an electrical conductor forming an electrical circuit for supplying electricity to a bi-axial actuator. The external base portion is an insulating member for covering a surface of the circuit core with a portion of the circuit core being exposed. An external frame is continuously formed with the outer side of the circuit core and is cut off from the circuit core after covering the circuit core with the external base portion by injection molding.

Abstract: A blood pressure measuring apparatus oppresses blood vessels of a human body by an inflating unit through a cuff. When the blood vessels are oppressed through the cuff, a pulse wave superposed on a cuff pressure signal through a cuff pressure detector is detected by a pulse wave detector. The waveform of the detected pulse wave changes similarly to changes of pressure in the oppressed blood vessels in one heartbeat period. The information of the detected pulse wave waveform and the cuff pressure at this time are stored in a memory.

Abstract: This invention relates to an objective lens driving device which moves an objective lens; an optical pickup device, comprising this objective lens driving device, which condenses a light beam onto the information recording surface of an optical disc; and an optical information recording and/or reproduction device, comprising this optical pickup device, which drives in rotation an optical disc and moves the optical pickup device to record and/or reproduce information signals onto or from the information recording surface. Two printed coil boards, with a first printed coil with a first shape formed on at least one face and a second printed coil with a second shape formed on the other face, are provided in parallel in an objective lens driving device of this invention, and a moveable portion on which an objective lens is provided is connected with the two printed coil boards; also, a magnet is positioned between the two printed coil boards provided in parallel.

Abstract: This invention is an optical pickup device having a composite optical element (32) which has a first diffraction grating (45) for splitting a light beam emitted from a light source (31) into zeroth-order light, plus-first-order light and minus-first-order light, a second diffraction grating (46) for diffracting the optical path of a return light beam from an optical disc (2), and a split prism (47) arranged at a position where the minus-first-order light diffracted by the second diffraction grating (46) is incident and adapted for splitting the minus-first-order light into a plurality of light beams. It also has a light receiving unit (35) for acquiring a focusing error signal FE by receiving each return light beam split by the split prism (47) and for acquiring a tracking error signal by receiving return light beams from the optical disc (2) of the plus-first-order light and the minus-first-order light split by the first diffraction grating (45).

Abstract: An electronic blood pressure meter determines, in an inflation process, pressure Ps correlated to systolic pressure, pressure Pd correlated to diastolic pressure and pulse wave period Pc, and then calculates deflation rate def−v in a deflation process based on a first formula (def−v=(Ps−Pd−mb1)×Pc/N, where N represents the number of required beats). Further, maximum inflation value Inf−max is calculated based on a second formula (Inf−max=def−v·(np×Pc+&agr;)+Ps+&bgr;1). The pressure is increased to reach the calculated maximum value and then deflation is started at the calculated deflation rate . The blood pressure meter can thus perform a precise measurement in a shortest time.

Abstract: In an authentication apparatus, coordinates input from a coordinate detector via a plurality of discontinuous holes or openings, cutouts or marks provided on a member which is used to specify the coordinates are detected, and an authentication is made based on a comparison result of the detected coordinates and a plurality of registered coordinates.

Abstract: An optical head used for recording/reproducing information signals for an optical disc having a light transmitting layer on a recording layer includes an actuator for the collimator lens. A collimator lens arranged between a light source and an objective lens is moved by the actuator for the collimator lens in a direction of cancelling the spherical aberration ascribable to thickness errors in the light transmitting layer. By this structure, the amount of generation of spherical aberration is reduced even if the numerical aperture NA of the objective lens loaded on the optical head is increased to render it possible to increase the recording capacity of the optical disc.

Abstract: An object of the present invention is to provide an accurate positioning function with respect to an object and program generating an operation by depression and its depression release. The present invention provides a control device (1) for outputting an information in accordance with an operation with respect to an input device. The control device (1) comprises: a detection unit (8) for detecting a release of depression with respect to the input device; and an output unit (8) for outputting an information indicative of a depression with respect to the input device and an information indicative of a depression release when detecting a release of the depression.

Abstract: A piezoelectric resonator supporting structure supports a piezoelectric resonator at a supporting member through a connecting member. The piezoelectric resonator is adapted to vibrate in a longitudinal vibration mode. A portion of the fixing member that contacts the piezoelectric resonator is made of a vibration transmission restricting material for restricting transmission of vibration from the piezoelectric resonator to the supporting member through the connecting member.

Abstract: In an authentication apparatus, coordinates input from a coordinate detector via a plurality of discontinuous holes or openings, cutouts or marks provided on a member which is used to specify the coordinates are detected, and an authentication is made based on a comparison result of the detected coordinates and a plurality of registered coordinates.

Abstract: An optical pickup device has a first optical system including a double lens type lens unit having a forward lens arranged facing an optical disc and a backward lens having an optical axis coincident with the forward lens. The optical pickup device also has a second optical system including an objective lens and first and second gap detection photodetectors for detecting the separation between the signal readout surface of the optical disc and the forward lens of the double lens type lens unit. The optical pickup device also includes a bobbin provided with the double lens type lens unit of the first optical system and with the objective lens of the second optical system and an electromagnetic driving unit for driving the bobbin in a first direction parallel to the optical axis of the objective lens and that of the forward lens of the double lens type lens unit and in a second direction normal to the optical axes.

Abstract: In a power supply apparatus including a plurality of batteries and a plurality of power supply portions for connecting to loads, a plurality of switches connect these batteries to these power supply portions, respectively. The apparatus further includes a control mechanism which controls the opening and closing operations of the switches. When one of the switches is turned on in one of the power supply means, the control mechanism executes the control in such a manner that the other switches are turned off. The control mechanism further controls each of the switches on the basis of the remaining capacity of each battery and the load state of each power supply portion. Accordingly, the power supply operation can be flexibly carried out.

Abstract: An optical pickup used in an optical recording and reproduction apparatus, wherein a wiring board formed with the wiring pattern has electrically connected to it a light receiving and emitting unit provided with a light emitting unit and an optical signal detection unit. At the same time, an object lens driving element is arranged on the wiring board. Due to this configuration, the electric connection members can be reduced and a reduction of size and a reduction of thickness of the optical pickup can be achieved.

Abstract: A charging-and-discharging device in an electronic apparatus includes a rechargeable battery and a charging device for charging the battery. The charging-and-discharging device includes a switching circuit electrically isolating one terminal side of the battery from a ground side of the electronic apparatus. The charging-and-discharging device further includes a charge control section controlling the isolating of the one terminal side of the battery from the ground side of the electronic apparatus by turning off the switching circuit during charging of the battery. In the charging-and-discharging device, the one terminal side of the battery is isolated from the ground side of the electronic apparatus by the switching circuit during charging of the battery and a closed loop including the charging device and the battery is established to charge the battery.

Abstract: A light-deflecting cover for an optical pick-up apparatus has a reflecting portion disposed within a light path of a light beam projected from a light source or light returning from outside the apparatus for deflecting an optical beam for bending the light path. The light deflecting part of the cover is provided with a light absorbing portion for removing unnecessary light which does not contribute to the operating characteristics of optical equipment within which the light deflecting part is provided.

Abstract: An optical pickup used in an optical recording and reproduction apparatus, wherein a wiring board formed with the wiring pattern has electrically connected to it a light receiving and emitting unit provided with a light emitting unit and an optical signal detection unit. At the same time, an object lens driving means is arranged on the wiring board. Due to this configuration, the electric connection members can be reduced and a reduction of size and a reduction of thickness of the optical pickup can be achieved.

Abstract: A disk device for moving an arm which supports a head slider and for positioning the head slider at a predetermined position of a disk, includes a suspension fixed at one end to the arm; a flexure which is provided in the vicinity of the other end of the suspension and on which the head slider is mounted; a spherical projection provided to project toward the disk at the end beyond the flexure mount position of the suspension; a slant base provided with a slant surface having an increasing distance from the disk in accordance with a radial outward distance of the disk; and a drive source for moving the arm so that the projection is moved in engagement with the slant surface in loading and unloading.

Abstract: An angle of rotation detector has a drive unit which supplies 90 degree phase shifted signals to a pair of stator coils and measures an analog output from a rotor coil in a resolver. A calculating device calculates the rotational angle of the resolver using the output of an analog to digital converter receiving the analog output of the rotor. In one embodiment, the calculating device performs a Fourier transform to compute the phase of a fixed frequency component contained in the output of the rotor coil. In another embodiment, the drive unit supplies signals wherein f(T/2+t)=-f(t) and the calculating device performs a Fourier transform using data from successive half periods of the drive waveform. In another embodiment, the output of the rotor is sampled at 1/4 period of an excitation signal from the drive unit and the calculating device determines the phase difference between the excitation signal and the rotor output.

Abstract: A method for making a thermal transfer type multicolor printing. An ink ribbon is set over a platen roller with a printing paper being interposed between them, the ink ribbon having at predetermined intervals a plurality of ink zones each carrying one of heat-dissolving inks of different colors. Then, one of the ink zones is positioned at a printing position on the platen roller, the one ink zone being of a predetermined color. A thermal head is placed at the printing position against the positioned one ink zone, and drived for transferring a first dot line of the ink of the one ink zone to the printing paper so that one picture component, for the predetermined color, of a picture to be printed is reproduced by the use of the ink of the one ink zone. Thereafter, the printing paper and the ink ribbon are advanced for a subsequent printing when unreproduced portion of the picture component exists.

Abstract: Apparatus for and method of friction welding two metal workpieces under a relative rotation, being characterized in that two workpieces of metal are welded together with a certain particular phase angle therebetween, and especially in that said particular phase relation is accomplished, without stopping once or discontinuing said relative rotation to adjust said phase angle, by providing an alternative rotating means which is driven independently from rotating means and selectively engageable with said proper rotating means.