A low cost electronic time keeping and display system comprising a regulated voltage converter for converting a low voltage from a source to a relatively high voltage, an electronic time keeping system powered by the low voltage source for providing low voltage time signals, and a plurality of level converters powered by the high voltage for converting each of the low voltage time signals to a relatively high voltage of sufficient magnitude to operate an associated relatively high voltage displa...

An electronic taximeter with a simplified integrated circuitry having a sensor for computing distance travel charge, a constant frequency oscillator for computing waiting time charge, a counting means, control means in which the higher revenue charge takes precedence in being transmitted to the counting means, and an illuminated digital display for indicating the integrated time-distance charge in terms of monetary units.

An electronic watch, which includes a time base, a logic circuit and an electronic display, comprises a data input device including at least one manual control member for transferring data, e.g. a numerical value or a numerically coded instruction, into the logic circuit by means of a logic transfer circuit. For example, any of 60 different data of any kind may be introduced into the logic circuit by means of a single push button. A number between 0 and 59 is attributed to each of these data. An...

A circuit including an oscillator generates pulse signals energizing selectively spaced indicator lamps excited in a pattern corresponding in location to the pattern described by an orchestra leader's hand movements indicating standard beat locations.

An electronic timepiece having a magnetic circuit including permanent magnets mounted on an oscillator, said magnetic circuit including an air gap. A driving and controlling device including at least one coil is pivotably mounted in said timepiece for displacement in a plane extending substantially parallel to the oscillating direction of said oscillator between an operative position at which said coil is positioned in said air gap and an inoperative position at which said driving and controllin...

The invention relates to an electronic timer using a constant current discharge of a capacitor. This discharge is effected through the main electrodes of a transistor. According to the invention a linear potentiometer is incorporated in a circuit between the emitter and the base of the transistor, and the wiper of this potentiometer is connected to both the capacitor and to one of the input terminals of the device. In this embodiment it is achieved that the adjusting range of the switching time ...

The operative components of an electronic timepiece are mounted side by said on a base plate in such a manner that any of the individual components can be separately removed without disturbing the other components.

An electronic wristwatch having a printed circuit which is flexible in part and reinforced in part. An integrated circuit is mounted on the reinforced part while a motor, which drives the hands of the watch, is connected to the flexible part. The flexible part has clamps which extend therefrom and cooperate with conductive studs located on the motor to connect the motor to the integrated circuit. Also, the flexible part and the reinforced part lie in different planes with a permanent fold connec...

An electronic switching element made of vitreous semiconductor materials is described. The switch changes from high to low conductivity or vice versa without changing its state of matter. A plurality of contact electrodes is disposed thereon, and no barrier layer is present. In order to switch from a low conductive to a high conductive state, a highly conductive channel is produced intermediate a control electrode and a base electrode by a control current flowing over the control electrode and t...

An electronic counter is provided with a built-in timer and is fabricated primarily of logic gates having a NAND function. Two of these gates are cross-connected in such a way that one of them is latched so as not to change its output while a timing cycle is taking place. The presence of the timer enables the counter to give a direct readout in RPM, for example.