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Class 368/203 - POWER SUPPLY DETAILS


Subclass of Class 368 - Horology: time measuring systems or devices
Definition: Subject matter including a source of energy means for furnishing
No. of patents: 109
Last issue date: 06/10/2008


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NumberTitleIssue Date
4553851Timepiece operated by solar cells
A timepiece operated by solar cells wherein the timepiece includes a base plate defining thereabove a base with a time indicator. Mounted on the base plate is a driver for driving the time indicator. A plurality of circumferentially spaced solar cells are...
11/19/1985
4478524Arrangement of analog-type electronic wristwatch
An analog-type electronic wristwatch structure comprising a main plate having a central area and first to third areas surrounding the central area. A wheel train mechanism is disposed in the central area, and a time correction mechanism is disposed in the...
10/23/1984
4477195Arrangement of analog-type electronic wristwatch
An analog-type electronic wristwatch structure, in which a main plate is made of an insulating material and has one side including a first area formed with a cutout, and second and third areas. A wheel train bridge is secured to one side of said main plat...
10/16/1984
4466742Electronic digital watch
The present invention relates to a writing implement containing an electronic computer for computing and displaying time. The implement includes an elongated barrel portion with a writing element having a tip portion protruding from one end thereof and an...
08/21/1984
4441825Low-power integrated circuit for an electronic timepiece
An electronic timepiece comprising a threshold voltage based constant voltage regulator circuit, which provides the regulated voltage to a first part of the timepiece system including an oscillator and a divider. The signal from the first part is transfer...
04/10/1984
4430009Arrangement for securing and electrically contacting a battery in a watch
An electronic watch having an improved arrangement for securing and electrically contacting a battery. The battery is held in the plate of the watch by a clamp bar 10 which is fixed by screws 12a, b at its ends. Interposed between the non-earthy terminal ...
02/07/1984
4362396Battery holder for electronic wrist watch
A battery is placed in a recess in the plate of an electronic wrist watch movement. The battery cover presses against a spring contact fixed to a plate bearing a printed circuit. An insulating sheet insulates the battery from an inner flange of the moveme...
12/07/1982
4351042Timepiece including a storage arrangement
The invention comprises an arrangement which permits placing a timepiece o a state of minimum energy consumption for storage purposes. It includes a manual control arranged to act on an electronic circuit. When the manual control is briefly actuated the ...
09/21/1982
4316275Charging control circuit for electronic timepiece
A charging control circuit for an electronic timepiece has a power source circuit including a charging device and a secondary battery, an electronic timepiece circuit, a drive signal change-over circuit for changing an alarm signal and warning signal for ...
02/16/1982
4316274Battery life indication method for an electronic timepiece
The degenerating condition of the power source in an electronic timepiece, that is, a diminished battery voltage, is indicated to the user by unusual performance of the watch bands. Short periods of accelerated or decelerated hand movements alert the user...
02/16/1982
4290129Electronic watch with supplemental function display
Electronic circuits provide an indication on the face of an electronic wristwatch that battery voltage has diminished to a prescribed level and provide the same indication regardless of battery voltage by actuation of an external member. Multiple function...
09/15/1981
4280208Electronic timepiece
An electronic timepiece having a battery lifetime detection mechanism is provided with a control circuit and external operation member the suitable manipulation of which permits a battery lifetime warning indication, produced in response to a signal from ...
07/21/1981
4276632Hatch locking mechanism for the battery compartment of a wristwatch
A hatch locking mechanism is disclosed for a battery compartment having a mouth opening in the rear side of a wristwatch. The mechanism includes an inner cover adapted to be received within the battery compartment mouth and a central support shaft extendi...
06/30/1981
4275405Semiconductor timing device with radioactive material at the floating gate electrode of an insulated-gate field-effect transistor
A semiconductor timing device having a charge storage region, the charge state of which may be detected by field effect action, the charge storage region containing radioactive material which decays by emitting charged nuclear particles, so that the charg...
06/23/1981
4244039Electro-mechanical watch
An electronic timepiece indicates a change in one of the working parameters of the timepiece, such as the battery nearing its end of life, by changing a rest position of a user viewable indicating member. The timepiece includes a stepping motor driven by ...
01/06/1981
4241440Battery-containing crown for wristwatches
A voltage source is arranged within the stem control crown of a timekeeping watch. The crown is designed similar to a knob shell and forms a component of the electric circuit of the watch. This specific battery arrangement allows an easy exchange of batte...
12/23/1980
4232383Electronic timepiece battery monitoring circuit
A battery monitoring circuit for an electronic wristwatch that avoids an inadvertent indication of battery failure when a sudden, but temporary, load is placed upon the battery is provided. The invention is characterized by a monitoring circuit that produ...
11/04/1980
4173862Booster circuit for electronic timepiece
A booster circuit for an electronic timepiece having a power supply and a display device adapted to be driven in a matrix driving mode, which comprises a Cockcroft circuit connected to one terminal of the power supply to provide a plurality of boosted out...
11/13/1979
4143507Battery operated electronic watch
A battery operated watch includes an actuator mechanism adapted to actuating indicator hands of the watch. The actuating mechanism includes a gear train adapted to drive indicator hands, a motor for driving the gear train, and an electronic block unit. Th...
03/13/1979
4141210Bipolar stepping motor
A bipolar stepping motor includes, a single stator sheet, an air gap between the ends of the stator sheet, a rotor between the ends of the stator sheet, and a coil which encompasses a portion of the stator sheet. The stator sheet is of essentially annular...
02/27/1979
4106279Wrist watch incorporating a thermoelectric generator
An electric wrist watch including a case containing a timekeeping module, an electrical storage device, and a display device. The case also includes a thermoelectric generator in contact with two heat exchangers. The two heat exchangers are arranged such ...
08/15/1978
4103187Power-on reset semiconductor integrated circuit
A semiconductor integrated power-on reset circuit that is formed on the same monolithic substrate as the circuitry that same is adapted to reset in order to obtain higher component density on the monolithic substrate is provided. The circuitry on the mono...
07/25/1978
4075518Micro-miniature stepping motor
A micro-miniature stepping motor suitable for driving the gear works of an electronic watch wherein low-frequency timing impulses derived from a high-frequency time base are applied to the stator coil of the motor to cause the rotor therof to index ninety...
02/21/1978
4075540Stepping motor for timepiece
A stepping motor for a timepiece comprising one-piece upper stator pair, one-piece lower stator pair, and magnetic material between said one-piece upper stator and said one-piece lower stator and circular rotor having at least two pairs of magnetic poles ...
02/21/1978
4058969Electric timepiece for displaying the operating condition thereof
In a battery operated an electric timepiece operated by a battery of the type a time display, such as a second hand, when the voltage of the battery decreases below a predetermined value, the movement of the second hand is modified to give an alarm that t...
11/22/1977
4003198Electronic timepiece
An electronic timepiece comprising a connecting system for connecting a plurality of electronic cells in parallel without undesirable mutual influences such as mutual charging and discharging....
01/18/1977
3999367Cable drive movement for clocks
A cable drive movement for driving clocks in which a cable roller is mounted rotatably on a movement plate with a cable being slung around the roller, the cable being subjected to the pull of a weight and having one end fastened on the cable roller and an...
12/28/1976
3966498Energy cell configuration for a timepiece
An improved energy cell configuration for an electric watch with a circular movement assembly and a center wheel, the cell having a convex arcuate sidewall conforming to the movement curvature and another sidewall extending across the movement and arrange...
06/29/1976
3949251Stepping motor for a timepiece
This invention relates to a stepping motor for a timepiece. The supporting means for the bearing of the rotor shaft is fixed on the base plate and it is coaxial to the rotor shaft. It is used both as the supporting means for the bearing of the rotor shaft...
04/06/1976
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