Abstract: A tuning fork utilizing elastic coupling between the flexural mode and the torsional mode in which the frequency of the flexural mode is adjusted by adding or reducing masses deposited near the center of the arms in the lengthwise direction and the frequency of the torsional mode is adjusted by adding or reducing masses deposited on the other portions such as the tops of the arms. The positions near the center of the arms in the lengthwise direction are suitably selected so that adding or reducing the masses thereto or therefrom changes only the frequency of the flexural mode changes only and the frequency of the torsional mode is scarcely changed.

Abstract: Disclosed is an analogue alarm electronic timepiece having a time hand.The time hand is used as both alarm setting time hand and time display hand.The analogue alarm electronic timepiece comprises a reversible motor, an electronic circuit including a driving circuit for the reversible motor and means for counting and storing at least two kinds of relative time differences selected from the group consisting of the relative time difference between the present time and alarm time, the relative time difference between the alarm time and the display time, and the relative time differences between the alarm time and the display time, and an electronic acoustic transducer.

Abstract: A speech synthesizer, using linear predictive coding technique, obtains variable frame lengths by multiplying a pitch period by the number of repetitions, and interpolates PARCOR coefficients at a rate different than the interpolation of amplitude.

Abstract: Each resonant frequency of a coupling resonator is measured at a plurality of each different temperatures. From these values the first order temperature coefficient .alpha. is calculated. According to the value of .alpha., it is accurately adjusted and finally the resonant frequency of a fundamental vibration is also adjusted to a nominal frequency.

Abstract: An analog electronic timepiece comprises a stepping motor having a stator, rotor and drive coil, and electronic circuitry for periodically energizing the drive coil in two distinct excitation states to rotationally drive the rotor in a stepwise manner. The electronic circuitry effects sequential energization of the drive coil in first a full excitation state which is effective to at least initiate driving of the rotor from an initial position through a predetermined angle of rotation to a new position, and then in an intermediate excitation state which is effective to ensure completion of the driving of the rotor through the predetermined angle of rotation by preventing return rotation of the rotor after the rotor has advanced through a certain angular extent towards its new position.

Abstract: An electrochromic display device has an electrolyte contained between two spaced-apart substrates. A plurality of display segments are disposed on the surface of at least one of the substrates in contact with the electrolyte, and a counter electrode is disposed on the surface of the other substrate in contact with the electrolyte. Each of the display segments comprises a transparent electrode and an electrochromic layer disposed on the transparent electrode such that the display segment exhibits either colored or bleached states depending on the amount of electric charge held by the display segment. A charge transfer voltage is periodically applied between preselected bleached and colored display segments to effect transfer of electric charges through the electrolyte to thereby periodically change the display state.

Abstract: A coordinate determining device comprised of a tablet having a plurality of sensing lines disposed thereon, and a magnetic field generator positionable relative to the sensing lines for indicating the coordinates of the magnetic field generator position. Detecting circuitry detects induced electromotive voltages from the sensing lines, and an arithmetic control unit computes the position of the magnetic field generating coordinate indicator and corrects for position errors caused by inclination of the magnetic field generating coordinate indicator relative to the tablet having the sensing lines disposed thereon.

Abstract: An electronic timepiece has a reference signal generator for generating a 1/10 seconds reference signal which is fed to a static counter which counts the 1/10 seconds reference signal and produces a reference count signal. A read only memory stores a system program which executes and controls a time count. An arithmetic and logic unit executes the time count and a random access memory stores the time counting data. A bidirectional data bus line is connected between the random access memory and the static counter, and a decoder is connected to the bidirectional data bus line for decoding the contents of both the random access memory and the static counter and providing corresponding decoded time data signals. A display device responds to the decoded time data signals and indicates the contents of the random access memory and the static counter.

Abstract: Macroanalyzer system comprising in combination: a crystal for separating X-ray emitted from a sample, an X-ray detector for detecting X-ray which are separated by the crystal, and a solar slit member located between the crystal, sample and X-ray detector. An operation circuit receives the output of said X-ray detector to eliminate the effect of the X-ray passing through the solar slit.

Abstract: A circuit board, for an electronic timepiece, having a switching electrode formed on a narrow peripheral surface of the circuit board. The narrow peripheral surface has a pair of spaced indentations, and the switching electrode is comprised of a metallic layer disposed on the indentation surfaces and on the portion of the narrow peripheral surface between the indentations. The switching electrode is fabricated by forming a pair of spaced small holes through a circuit board base plate, and by forming a large hole having a diameter greater than a distance between the pair of small holes and positioned for intersecting the pair of small holes. A conductive layer is plated on the surfaces defining the pair of small holes and on that portion of the surface which defines the large hole that is between the pair of small holes.

Abstract: In an alarm electronic timepiece having a reference time generator, a normal hand stepping pulse generator for driving a stepping motor, an alarm coincidence circuit and an electric buzzer, it includes an alarm hand stepping pulse generator which produces an alarm hand stepping pulse to drive the stepping motor instead of the normal hand stepping pulse from the normal hand stepping pulse generator, in an alarm sound generating state. The alarm hand stepping pulse produces at the lowest alarm sound pressure of the electronic buzzer, whereby a highly reliable and acoustically excellent alarm electronic timepiece is provided.

Abstract: A flourescent x-ray device for irradiating x-rays to a sample so that flourescent x-rays emitted from the sample can be detected is described. A stationary fixed collecting plate is used instead of the movable reflecting plate employed in the prior art. The reflecting plate possesses the characteristics of being transmissive to x-rays and being reflective to visible light so that an image of the sample can be viewed by an observer and the sample can be irradiated with x-rays passing through the plate. The invention permits a remarkable decrease in manufacturing cost. Moreover, the device can be operated in a stable condition with high accuracy for a long time.

Abstract: An active matrix type liquid crystal display device driven by a switching transistor array consists of a MOS-FET is disclosed. A common electrode opposite to picture element electrodes is divided in a line direction by the width equivalent to plural lines of the picture element electrodes. The poralities of video signals applied to the picture element electrodes and of the voltage of the common electrode are inverted in the line sequential.

Abstract: A multi-mode electronic timepiece includes a case body on which an annular dial is mounted for angular stepwise displacement. A circuit board is mounted within the case body and includes a plurality of angularly spaced-apart switch terminal patterns connected to circuitry for generating different mode signals depending on which of the switch terminal patterns are actuated. A plurality of switches are disposed adjacent respective ones of the switch terminal patterns and each switch includes a movable rod movable between first and second positions to actuate or not actuate its respective switch terminal pattern. The underside of the annular dial is provided with a plurality of angularly spaced-apart camming portions which are suitably located to cam the switch rods in response to manual angular stepwise displacement of the dial to actuate selected ones of the switches to accordingly actuate selected ones of the switch terminal patterns and produce a corresponding mode signal.

Abstract: A method of manufacturing an integrated circuit device including vertical static induction transistors (SIT) having a first recess between the gate region and the drain (or source) region to reduce the capacitance between both regions and a second recess on an outer surface of the SIT gate to reduce the gate capacitance and a minority carrier storage. The method includes the steps of removing a masking film on the SIT channel region while leaving the masking film at the portions of the gate region and the drain region; forming the first and the second recesses in the channel region; locally oxidizing the exposed channel region; and forming the gate region and the drain region by removing the masking film.

Abstract: The GT-cut quartz resonator resonated by two longitudinal modes and provided with the masses for frequency-temperature characteristics adjustment and frequency adjustment. The frequency-temperature characteristics and the frequency of the GT-cut quartz resonator are adjusted by eliminating the masses. Consequently, the quartz resonator adjusted to the normal frequency and having the excellent frequency-temperature characteristics is attained. Further the GT-cut quartz resonator of small and thin size is attained by making the resonant portion and the supporting portions in one piece by photolithographic technique.

Abstract: A watchcase comprises a case body, a bezel, and a support member affixed to the bezel for removably connecting the bezel to the case body so as to permit easy removal and replacement of the bezel. The support member has at diametrically opposite locations thereof outwardly extending flange portions, and corresponding recesses are provided in the case body at diametrically opposite locations for movably receiving therein respective ones of the flange portions with sufficient clearance therebetween to enable a sufficient extent of movement of the support member relative to the case body in the diametrical direction of the flange portions to permit removal and replacement of the bezel without deformation of either the case body or bezel. A deformable elastic member is interposed between the bezel, support member and case body and the elastic member is configured so as to undergo elastic deformation during removal and replacement of the bezel thereby preventing deformation of both the case body and bezel.

Abstract: An electrochromic device includes a layer of electrochromic material, such as tungsten oxide, which is deposited by oblique evaporation at an acute angle of incidence in the range of from 30.degree. to 70.degree. between the normal to the substrate and the direction of the evaporation. Due to the anisotropic topography achieved by the oblique evaporation, the layer of electrochromic material exhibits improved fast response time and long life time of cycling of coloration and bleaching.

Abstract: A winding stem mechanism for a watch having a winding stem and a pinion with a shaft body. The winding stem and pinion are dimensioned to slidably fit within a base plate recess, and have respective facing ends. One facing end is provided with a square blind bore, and the other facing end is square and complementary to the blind bore and dimensioned to slidably fit within the blind bore so that the winding stem can slide away from the pinion without displacing same and the winding stem can slide toward the pinion and displace same in the direction of travel of the winding stem. The pinion engages a setting wheel for setting a wheel train.

Abstract: A small acoustic device is provided with a housing, a first electrically actuated vibrating plate and a second vibrating plate. A support member cooperates with the housing for mounting the periphery of the second vibrating plate to the housing to define therewith an airtight chamber. The support member also supports the periphery of the first vibrating plate in the airtight chamber with a gap between the two vibrating plates and air chambers on either side of the second vibrating plate. In this way, the barometric pressure in the two air chambers on either side of the second vibrating plate are equivalent and the device is both waterproof and independent of ambient temperature changes.