A day and date corrector mechanism mounted for pivotable displacement from outside said watch and having a quadrilateral aperture therein. A corrector wheel lever cooperatively engages said quadrilateral aperture for the selective positioning of a day and date corrector wheel mounted on said corrector wheel lever. The setting lever is pivotably displaceable between three positions, at one of which said corrector wheel lever may rock between one operative engagement of said corrector wheel for da...

An improved alarm watch having a second hour wheel rotatably mounted on an arbor spaced from the center of said watch and operatively coupled to the hour wheel of said watch for rotation thereby. Said watch includes an unlocking wheel also rotatably mounted on said arbor and in operative engagement with the alarm setting wheel for rotation thereby. The unlocking wheel is provided with a plurality of projections adapted for registration with like apertures formed in said second hour wheel, said u...

A piezoelectric coupled mode turning fork using the fundamental vibration of a flexural mode coupled with the fundamental mode of torsion. The fundamental frequency of the torsional mode is adjusted by masses near the side edges of the tine tips, and the fundamental frequency of the flexural mode being adjusted by masses near the center of the tine tips which are nodes of the fundamental torsional mode.

A non-volatile semiconductor memory device has source and drain regions disposed in spaced apart relation adjacent the surface of a semiconductor substrate to define in the substrate a channel region having a first channel region portion in contract with the drain region and a second channel region portion between the first channel region portion and the source region. A floating gate electrode is disposed over the channel region between the source and drain regions, and a gate insulating layer ...

Parts in a desired attitude are selected, by memorizing the standard shape signal of a certain part and comparing the shape signals of supplied parts on the parts feeder with the memorized shape signal. A plurality of light emitting elements provided on the track of the parts feeder detect the shape signal of the parts serially.

A matrix liquid crystal display device comprising a reflecting plate and a polarizing plate coated on an insulating substrate, a thin film transistor arranged on the insulating substrate in matrix configuration, and a liquid crystal sandwiched between the insulating substrate and a glass plate. A cross-talk between picture elements caused by transmission or reflection of light on the substrate is prevented. The thin film transistor is formed by a semiconductor film made of amorphous silicon or a...

A pulsimeter having a detection electrode receptive of electrocardiac signals of a person and a pulse detection circuit, a switching element connected between an input terminal of the pulse detection circuit and a ground level, and a switch for controlling the conduction state and non-conduction state of the switching element so that the detection circuit can be protected from the static electricity by conducting the switching element in the pulse detection mode.

An electronic timepiece has an oscillator for generating a high frequency time standard signal which is frequency-divided by a multi-stage divider circuit. A memory stores time adjustment information for use in adjusting the time in the event the oscillator time standard signal is higher than a predetermined frequency. The memory is connected to a preset circuit for presetting the divider circuit in accordance with the content of the memory. The divider circuit comprises 16 dividing stages and w...

An active matrix-addressed liquid crystal panel comprising plural matrix picture elements is disclosed. The defects of a picture caused by a short between a row electrode and a substrate is inconspicious because each row electrode controls the picture elements belonging to the row as well as the picture elements belonging to the neighboring rows.

A self-winding chronograph timepiece having a clutch system positioned intermediate the self-winding system and the gear train, said clutch system having a clutch ring frictionally connected with a fourth wheel loosely fitted on the sweep second axle through the operation of a clutch spring secured to said axle. Said clutch ring is displaced out of engagement with said fourth wheel by means of a starting and stopping level responsive to the operation of a crown or button.