| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 368066000 | With power monitor | 14 |
| 20080205199 | Residual wound quantity display mechanism of timepiece and timepiece with residual wound quantity display mechanism - To provide a residual wound quantity display mechanism of a timepiece, in which it is possible to change a way of a display without changing a basic structure, and a timepiece with the mechanism concerned. A residual wound quantity display mechanism of a mechanical timepiece has an output gearwheel rotating in compliance with a change in a residual wound quantity of a mainspring; a drive lever possessing monolithically a fan-shaped gearwheel part meshing with the output gearwheel, and an arm part extending from a rotation center of the fan-shaped gearwheel part in a direction different from a fan-shaped portion of the fan-shaped gearwheel part; a display member possessing a drive gearwheel part rotatably supported to a tip part of the arm part of the drive lever, and a display arbor formed monolithically in the drive gearwheel part in a site separated from a rotation center of the drive gearwheel part; and a fixation gearwheel possessing a fixation tooth part with which a tooth part of the drive gearwheel part of the display member meshes. Typically the fixation gearwheel adopts a form of the internally-toothed gearwheel. | 08-28-2008 |
| 20080225646 | TIMEPIECE INCLUDING A POWER RESERVE INDICATOR DEVICE - The present invention concerns a timepiece including a movement fitted with a power reserve indicator device, said timepiece including a barrel closed by a cover, a mainspring housed in said barrel and respectively connected to a barrel arbour and means for winding said mainspring, said indicator device including a differential gear kinematically connected by a first input to the barrel arbour, by a second input to the barrel and by an output to a power reserve indicator member and wherein the differential gear frame is arranged coaxially to the barrel arbour, characterized in that the second differential gear input is secured to the barrel cover, in that the differential gear output is formed by an inner toothed crown, in that the inner toothed crown is kinematically connected to the first input by at least first and second planetary wheel sets meshed with each other and in that the at least two planetary wheel sets are carried by the cover. | 09-18-2008 |
| 20080225647 | Electronic Timepiece with Generator Function - An electronic timepiece with a generator function, including a generating means, a storage means that stores electrical energy produced by the generating means, a timekeeping control means that is driven by the electrical energy stored in the storage means, a time display means that is controlled by the timekeeping control means and displays time, a power generation detection means that detects the power generation state of the generating means, and a power generation display means that displays the power generation state based on a detection result signal output from the power generation detection means. The power generation detection means includes a hand and an actuator that drives the hand in both forward and reverse directions. | 09-18-2008 |
| 20080225648 | Electronic Timepiece with Generator Function - An electronic timepiece with a generator function, including a generating means, a storage means that stores electrical energy produced by the generating means, a timekeeping control means that is driven by the electrical energy stored in the storage means, a time display means that is controlled by the timekeeping control means and displays time, a generator output detection means that detects the power generated by the generating means, a remaining operating time calculation means that integrates the power output detected by the generator output detection means and calculates a remaining operating time, and a remaining operating time display means that displays the remaining operating time calculated by the remaining operating time calculation means. | 09-18-2008 |
| 20110164474 | DEVICE COMPRISING A CLOCK MOVEMENT AND A CHRONOGRAPH MODULE - A device comprises a basic clock movement MB whose time indicators are driven by a first barrel connected to a first wheelwork and a first regulator organ, and an autonomous chronograph module MCA whose indicators are driven by a second barrel independent from the first, connected to a second wheelwork and a second regulator organ. The chronograph module is exclusively composed of mechanical elements. The frequency of oscillation supplied by its regulator is equal N times the frequency of oscillation supplied by the regulator of the base movement, with the coefficient N being definable according to a specific application of the chronograph, so that any chronograph module thus previously defined can work with the same base movement. The chronograph regulator remains constantly engaged with the corresponding wheelwork. The chronograph module allows a time interval to be read with a minimum precision of a hundredth of second. The organs of the base movement and of the chronograph module are arranged in such a way that in assembled state, the height and overall diameter do not exceed 7.75 mm and 30 mm respectively, the dimensions of the chronograph itself being not greater than 4 mm (height) and 30 mm (diameter) when its elements are mounted on a bottom plate, so that the device can advantageously be integrated in the case of a wrist-watch and affords an aesthetic exterior. | 07-07-2011 |
| 20110199865 | Stepping motor control circuit and analogue electronic watch - The invention is aimed to be capable of detecting lowering of a power source without providing a circuit specific for voltage detection such as a comparator circuit. A stepping motor control circuit includes a battery configured to supply an electric power at least to a stepping motor, a rotation detection circuit configured to detect the state of rotation of the stepping motor, and a control unit configured to select an upgraded main drive pulse from a plurality of the main drive pulses having energy ranks different from each other and drive the stepping motor with the selected main drive pulse. The control unit is configured to determine that the voltage of the battery lowered to a level equal to or lower than the predetermined value when the main drive pulse reaches a maximum main drive pulse in a predetermined rank by upgrading it a number of times smaller than the predetermined number of times within a predetermined time. | 08-18-2011 |
| 20120188855 | TIMEPIECE - A timepiece according to a first aspect of the invention has a fan-shaped display unit including a display wheel that can rotate, a stepping motor that rotationally drives the display wheel in both forward and reverse directions, a reverse stop that limits reverse rotation of the display wheel, and an indication means that is attached to the display wheel; and a control unit that applies pulses to the stepping motor. The position of the reverse stop is set so that the orientation of one polar axis of the rotor of the stepping motor when the display wheel is stopped by the reverse stop at the reverse stop is within ±360°/(number of magnetic poles of rotor*2) from the static stable position of the polar axis. After stopping at the reverse stop, the polarity of the first pulse applied to the stepping motor by the control unit is constant. | 07-26-2012 |
| 20120307598 | ELECTRONIC APPARATUS AND ELECTRONIC TIMEPIECE - A power generating unit generates electric power according to light incident on a light-receiving surface. A power storage unit stores the electric power generated by the power generating unit and outputs the stored electric power. A generated-power voltage detecting unit detects the voltage of the electric power generated by the power generating unit. A stored electricity voltage detecting unit detects the voltage output from the power storage unit. A display unit displays a character or an image. The display control unit changes contents to be displayed on the display unit on the basis of the voltage of the electric power generated by the power generating unit, which is detected by the generated-power voltage detecting unit, and the voltage of the electric power output from the power storage unit, which is detected by the stored electricity voltage detecting unit. | 12-06-2012 |
| 20130188460 | ELECTRONIC TIMEPIECE - An electronic timepiece of the invention is configured to compare a no-illuminance no-operation period (a period in which no light is incident on a solar panel and a state in which no operation is performed in an operating unit continues), with a predetermined first transfer period (for example, 2 hours) when the time measurement action is not in execution in the chronograph mode or the timer mode, and compare the no-illuminance no-operation period with a predetermined second transfer period (for example, 72 hours) longer then the first transfer period when the time measurement action is in execution in a chronograph mode or the timer mode. The electronic timepiece is transferred to the power save mode when the no-illuminance no-operation period reaches the transfer period and stops a display action on a display unit. | 07-25-2013 |
| 20130194896 | ELECTRONIC TIMEPIECE - According to an electronic timepiece of the invention, when a secondary battery is in an uncharged state and an oscillation circuit, a display unit, and a CPU are restored from an inoperable state to a normally charged state which makes the respective members to be operable, the electronic timepiece activates and oscillates the oscillation circuit when a secondary battery voltage reaches a predetermined first voltage (for example, 0.9 V), and cancels a reset of the CPU when the secondary battery voltage reaches a predetermined second voltage (for example, 1.2 V), and starts a time-of-day display on the display unit when the secondary battery voltage reaches a predetermined third voltage (2.2 V). | 08-01-2013 |
| 20130194897 | ELECTRONIC TIMEPIECE - There is provided an electronic timepiece of the invention that includes a solar panel which receives light to generate electric power, is operated with the electric power supplied from a secondary battery charged with an electromotive voltage of the solar panel, and stops a display operation of a display unit with transition to a power saving mode under predetermined conditions, the electronic timepiece including a control unit (mode control unit) which avoids transition from the normal mode to the power saving mode, when a voltage of the secondary battery is equal to or more than a predetermined voltage value. | 08-01-2013 |
| 20130194898 | ELECTRONIC TIMEPIECE - There is provided an electronic timepiece that includes a solar panel which receives light to generate electric power, is operated with the electric power supplied from a secondary battery charged with output voltage of the solar panel, and includes a normal mode in which clock display is performed on a display unit and a power saving mode in which clock display on the display unit is stopped, based on illuminance detection of the solar panel, the electronic timepiece including: a mode control unit which switches cycles of the illuminance detection, by setting a cycle of the illuminance detection of the normal mode as a first cycle (for example, one minute), and a cycle of the illuminance detection of the power saving mode as a second cycle (for example, two seconds). | 08-01-2013 |
| 20150293500 | TIMEPIECE INTENDED TO INDICATE THE POWER RESERVE - A horological instrument intended to indicate the power reserve, includes a barrel ( | 10-15-2015 |
| 20220137558 | MECHANICAL HOROLOGICAL MOVEMENT WITH POWER RESERVE DETECTION - A mechanical horological movement ( | 05-05-2022 |
