A small alarm timepiece having a timepiece movement, an electrically operating buzzer as an acoustic alarm signal delivery means, a battery detachably mounted on the timepiece movement for energizing said buzzer for its operation, and an alarm switch for on-off control of the operation of the buzzer. This alarm switch is operatively connected with the movement so as to be closed at a preset time point and to remain closed for a certain predetermined operation period. The drive circuit for the bu...

An electronic timepiece having a frequency standard, a frequency divider which divides an output frequency of the frequency standard to provide output pulse signals, a time counter driven by the output pulse signals from the frequency counter, and display means for displaying the contents of the time counter, in which a counter means is coupled to the time counter to form a serial counter chain and receiving an output signal from the time counter to perform a plurality of functions, and a change...

A brush device for a miniature electric motor of a construction, in which a brush comprising a brush main body and a brush head part having a smaller size than the brush main body is forcibly inserted into an opening of a substantially corresponding size shape to the brush head part which is perforated in one part of a brush holder made of a leaf spring in a strip of narrow breadth, and an electrically conductive adhesive agent is applied to a fitted portion of the brush head part and the perfor...

A liquid crystal display driver control circuit device comprising a control circuit turning on and off a display cell between an alternating current voltage supply source and the input of a liquid crystal driver circuit and said control circuit controlling the display of at least one digit figure or mark by means of a small number of elements.

An integrated circuit comprises components for the basic functions of a timepiece and additional components for controlling the operation mode of the basic components. By properly controlling the operation mode of the basic components, the integrated circuit can be applied to two or more types of timepieces, thereby reducing the kinds of the integrated circuits that need to be prepared.

An electronic timepiece equipped with an oscillator for producing a time base, a freuqency divider and time display means drive in response to output signals supplied by the frequency divider, which timepiece includes correction system characterized in that a single switch is provided for rapidly correcting the time display means, wherein time corrections are alternatively accomplished in an advancing and retarding direction each time the switch is depressed.

In a color photographic developing process, the use of a coupler of the formula wherein R is methyl or methoxy.

A dc brushless electromagnetic rotary machine, such as a dc electric motor, a dc electrical generator, includes a rotor having a permanent magnet which is cylindrical outer peripheral surface magnetized in the same polarity. The outer surface faces armature cores fixed on the inner cylindrical surface of a casing frame forming a stator of the machine. In the structure, the magnetic flux emanating from the rotor magnet passes the armature cores and returns to the magnet from a position other than...

A transmitter includes a repetition encoder generating a repetition code sequence having a word length of r bits by carrying out a repetition coding with respect to 1 bit of a transmission unit which divides transmission information by a predetermined word length, where a rate of the repetition coding is set equal to a reciprocal of a predetermined integer r, a tree encoder generating a tree code sequence by carrying out a tree coding with respect to the other bits of the transmission unit, wher...

A circuit in an electronic timepiece including a battery, a crystal oscillator, a frequency divider, a display driver and a display for reducing the magnitude of the voltage to one or more of the oscillator or driver circuits after the timepiece is turned on. The circuit initially allows the magnitude of the voltage applied to be the same as that of the battery. After some predetermined time has elapsed, the circuit reduces the applied voltage thereby reducing the power consumption and extending...