Citizen Watch Company, Ltd.

Kyodo Printing Co., Ltd.

Citizen Holdings Company, Ltd.

Akiyoshi Murakami

Haruhiko Higuchi

Tadahiro Furukawa

Kenji Fujita

Kiyotaka Igarashi

Motoki Funahashi

Kenji Shimoda

Masayoshi Shimamura

Isamu Kobayashi

Hisashi Sato

Toshio Haga

Kazumi Arai

Ichiro Bekku

Yoichi Nagata

Noritoshi Suzuki

Masao Sakuyama

Isao Kitazawa

Masahiko Hitomi

Michiko Yagi

In an electronic watch having an electrical generation means, an electrical power storage means which stores electrical energy generated by the electrical generation means, an oscillator circuit, a control section which operates in response to a clock of the oscillator circuit, and a display section which is controlled by the control section, and which displays the time and also selectively displays a function other than the time, a voltage detection means which detects the voltage of the electrical power storage means and a control section management means which, in response to a detection signal from the voltage detection means controls the operation of the control section are provided, and hysteresis is provided between the operation starting point and operation ending point of the control section, which control such operations as storage of hand positions.

Electronic watch

The invention provides a rechargeable electronic timepiece that restarts the operation of a clock circuit by inputting a power source, thereby securely confirming the clock operation. The electronic timepiece includes a first power source (), a clock circuit () connected to the first power source, a power source input detecting circuit () for detecting an input of a second power source (), a switch circuit () for connecting the first power source and the second power source, and a control circuit () for controlling the switch circuit to connect the first power source and the second power source so that the first power source is charged by the second power source thereby operating the clock circuit when the power source input detecting circuit detects an input of the second power source.

Electronic clock

Impact detecting resistors (), () of an impact detecting circuit () detect a counter electromotive force of a step motor () generated due to an impact. This counter electromotive force is amplified applying a predetermined period and a predetermined chopper-width by a chopper-amplifying waveform shaping circuit (). Therefore, even a light impact can be detected. Inverters (), () compare these impact detecting signals (S), (S) with a threshold value and detect an impact when the signals exceeds the threshold value. A controlling circuit () provides a lock pulse to the step motor () through signal lines (AA), (BB) when an impact is detected, brakes rotation of a rotor () thereby preventing a deviation of the time displayed with a second hand ().

Analog electronic timepiece that prevents deviation of displayed time when an impact is applied to the timepiece

When a stem switch () is pulled out, a switch signal forming unitoutputs a signal (RS) indicating that effect, a control unit () receives the signal (RS) and starts clocking by a timer (). The control unit () receives a signal (HS) output from an electricity-generation detecting unit () within the clocking period, detects the electricity generating operation of an electricity generating unit (), and outputs a signal (CS) indicating that effect. A narrow pulse forming unit () forms a narrow pulse having a width of such a degree that the motor () is not driven based on the signal (CS), and outputs the narrow pulse to a motor driving circuit (). The motor driving circuit () flows a fine current through a coil () which drives the motor () based on the narrow pulse. An external device detects a variation of the narrow pulse, thereby confirming whether electricity is generated.

Electronic timepiece

In detecting power generation of an electronic timepiece having a conventional power generating unit, voltage output by the power generating unit is limited by output from a storage unit since the power generating unit and the storage means are connected when the power generation state is detected, and voltage equal to or larger than voltage output from the storage unit cannot be detected. An electronic timepiece is provided which can overcome the problem and can check an operation of the power generating unit securely irrespective of the state of the storage means. In an electronic timepiece driven by power stored from a power generating unit () into a storage unit (), the electronic timepiece includes a power generation detecting unit () that detects a power generation state of the power generating unit () and a switch unit () that separates the power generating unit () and the storage unit () when the power generation state of the power generating unit () is detected. In this case, the switch () between the power generating unit () and the storage unit () is controlled to OFF so that the output from the power generating unit () cannot be limited by the output from the storage unit ().

A method for transferring a transparent conductive film onto one surface of a sheet base material made of a plastic material, wherein the transparent conductive film as an object to be transferred is preliminarily formed on a substrate side which is superior in heat resistance to the plastic material, the transparent conductive film being sandwiched between a peelable layer which can be peeled off at the time of transfer and a protective film for protecting the transparent conductive film on the substrate side which is superior in heat resistance to the plastic material.

Method for transferring transparent conductive film

A data transmitting/receiving system is configured so as to send data to an analog-type watch, without the need to make direct electrical contact thereto and without influencing the drive of the hands of the watch. When a timing signal that is sent from the watch is received, a data transmitting unit performs transmission. The watch does not receive data at other times, and this receiving operation is performed intermittently.

Electronic watch transmitting/receiving system

A multifunction electronic watch having a large variety of added functions, and providing an electronic watch and drive method therefor that have a high value as a product and a configuration enabling separate use of an energy-saving mode and a function information operating mode, this electronic watch having a reference signal generation means , a time information generation means , which generates time information TJ based on a reference signal S R from the reference signal generation means , a function information generation means for generating function information FJ, a display drive means , which outputs drive signals DRT and DRF for the purpose of displaying the function information FJ and the time information TJ on an appropriate display means, and a display means , which displays the function information FJ and the time information TJ based on the drive signals DRT and DRF from the display drive means , this electronic watch having an energy-saving operating condition with a power consumption that is less than an normal operating condition, wherein the function operating condition of the function information generation means is given priority over the energy-saving operating condition.

Electronic watch and drive method therefor

An electronic watch with a chronograph function comprises a motor, a current time counter, a hand position counter, a coincidence detector and a backward/forward movement determining unit. When a chronograph mode is selected, a second hand moves backward or forward to a 12-o'clock (zero) position depending upon its position in a time measurement and indication mode. The electronic watch reliably resumes the time measurement and indication after it functions as a chronograph.

An information display apparatus is provided which has a first display means that displays a first information and a second display means that displays either the first information or second information that differs from the first information, an annunciating means which externally annunciates this condition based on a prescribed signal, when the second display means is displaying the second information, if the second information coincides with the first information being displayed by the first display means, and a switching means to enable selection of at least one of selection, changing, or repeated selection of one of the first information and the second information displayed to be displayed by the second display means.

Information display apparatus

A technique related to color filters to be arranged on the light-receiving surface of a color liquid crystal display device, color video camera, and the like. The color filter consists of a substrate (10) and a colored filter layer (12) formed thereon. The colored filter layer (12) comprises, for example, three groups of filter picture elements (14R), 14G, 14B) having spectral characteristics respectively corresponding to red, green and blue. Each group of filter picture elements are made of polyimide resin and dye contained therein. Further, each group of the filter picture elements (R, G, B) are arranged in direct contact with one surface of the substrate (10) without using any intermediate protecting film. The first group of filter picture elements patterned on one surface of the substrate (10) are subjected to heat treatment at a high temperature of about 250.degree. C., for example, to increase their resistance against the solvent. Then, a second coating layer for patterning the second group of filter picture elements is directly formed without using any intermediate protecting film.

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Ageo, Japan

Akiyoshi Murakami