An electronic watch having a circuit for permitting it to be stopped in a state of minimum consumption. The watch has an oscillator, a frequency divider comprising flip-flops and a display, with the display and at least some of said flip-flops being connected to a common line so that a signal applied to the common line places them in a state of minimum consumption. The circuit including a switch connected between the common line and a terminal of the power supply and at least two MOS transistors...

The invention relates to a plate-like electronic member, e.g., an electro luminescence element or the like, and an electronic device. In the electronic member (1) of the invention, first and second electrodes are formed on respective surface of a plate-like electronic member body a first electrode connecting portion is formed on the first electrode, and, a second electrode connecting portion which is electrically connected with the second electrode is formed on a same side of the first electrode...

A hollow cathode lamp is controlled during normal running, by a pulsing circuit, and the lamp is in series with a diode which protects the pulsing circuit when the lamp is initially ionised by a large voltage applied across the anode and cathode of the lamp. The pulsing circuit drives an operational amplifier which in turn drives the control terminal of a transistor in series with the lamp. The operational amplifier presents a high impedance to the pulsing circuit, and therefore a number of simi...

An electronic hybrid circuit is provided for connecting a signal transmitting circuit and a signal receiving circuit to a both-way signal transmission circuit, said circuit comprising a constant current supply source providing current supply terminals for connection to said both-way signal transmission circuits, a transistor, the current path of which is connected across said current supply terminals in series with a line balance load impedance, and a signal summation circuit having inputs conne...

To permit easy, accurate movement of the transit element of an electronic tacheometer, about its support axis, without interference by connecting cables or heavy electronic component attachments, the electronic components of the tacheometer are placed in a housing which is rotatable about the main support post of the transit unit, connected by cables to the transit unit, so that the electronic components and the transit unit can rotate together, without, however, introducing a drag on the transi...

An electronic timepiece adjustment circuit is provided for allowing adjustment of the division ratio of the divider circuit of an electronic timepiece by external switching circuitry. An electronic timepiece includes an oscillator circuit for producing a high frequency time standard signal and a divider circuit having an adjustable division ratio to produce a low frequency time standard signal in response to a high frequency time standard signal applied thereto. Adjustment circuitry is coupled t...

AC voltage input to a solid state, clock circuit having a 60 Hz sinusoidal waveform, is transmitted through field effect transistors to the light emitting diodes of a numeric display for time indicating purposes. The rectifying action of the light emitting diodes momentarily interrupts illumination in view of the AC drive, enabling use of high peak currents during short duty cycles.

An electronic keyboard is disclosed in which the touch of a user, representing data, at immovable touch surfaces is actively encoded by interconnected amplifiers to provide an encoded signal to integrators, for example capacitors, to thus provide signals from the touch surfaces encoded into logical format. In the preferred embodiment, various of the components of the keyboard of the present invention are applied to the opposed major faces of a ceramic substrate and additional amplifying means ar...

A digital display for an electronic timepiece admitting of reduced power consumption by providing improved circuitry for driving same. The circuitry applies drive signals to each digit representative of a unit of time in a sequential manner so as to light each unit sequentially. The duty cycle is selected to render all of the display digits visible to the human eye simultaneously.

An electronic printer comprising a printing head having two straight grooves perpendicular to each other, a pin provided on a carriage and engageable with one of the two grooves, and a plate spring secured to the carriage and engageable with the other of the two grooves to hold the printing head on the carriage, in order to facilitate the attachment of the printing head on the carriage. The plate spring can also hold a flat cable connected to the printing head.