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| Number | Title | Issue Date |
| 7933168 | 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 d... | 04/26/2011 |
| RE41686 | Electronic watch 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 oscilla... | 09/14/2010 |
| 7684285 | Power reserve indicator mechanism The invention concerns a power reserve indicator mechanism for a timepiece of the type comprising: a mainspring (14), a power reserve indicator moving between two end positions, a differenti... | 03/23/2010 |
| 7663978 | Drive control apparatus, electronic apparatus, method of controlling drive of electronic apparatus, drive control program, and recording medium In an electronic device 1 comprising a battery 200 and a piezoelectric actuator A, a power source voltage before drive control is started is maintained by a sample holding circuit 102, a reference voltage is set by a reference voltage generating... | 02/16/2010 |
| 7593292 | Synchronization method between analogue display means and the time counter of a watch The invention concerns a synchronisation method between analogue display means (4, 6) and a volatile time counter (8) in a multi-function electronic watch when the primary powering means (18) powering said watch are replaced, including the follo... | 09/22/2009 |
| 7364352 | Time measurement device and method A mechanism having at least a function of measuring an arbitrary elapsed time is provided, which disables the function from being reset after the function is started, and enables the function to be reset after the function is stopped. The function is continuously he... | 04/29/2008 |
| 7357568 | Running reserve indicator for a mechanical clockwork A running reserve indicator is provided for a mechanical clockwork provided with a main barrel for driving a gear-train and at least a second barrel for driving a gear-train allocated to an auxiliary function which is performed during a determined period. With the i... | 04/15/2008 |
| 7350966 | Watch including at least two regulating systems The invention concerns a watch with a mechanical movement of the type comprising at least two regulating systems (SR1, SR2) each including a mechanical oscillator and an escapement. The movement includes as many sub-assemblies (SE1, SE2) ... | 04/01/2008 |
| 7327638 | Electronic timepiece Using an oscillating unit (601) that can start oscillation with a low voltage, an oscillation signal (S1) of the oscillating unit (601) is amplified via a waveform shaping unit (603), and is fed to a boosting control unit (105). A ... | 02/05/2008 |
| 7317600 | Circuit interrupting device with automatic end of life test The present invention provides to a circuit interrupting device, particularly a ground fault circuit interrupter (GFCI), with a test circuit which is capable of automatically generating a simulated leakage current to detect whether the service life of the circuit in... | 01/08/2008 |
| 7300200 | Timepiece having mainspring winding state display apparatus including deformed segment gear A timepiece has a mainspring winding state display apparatus for arranging a rotational center of a winding mark hand at an arbitrary pertinent position in a movement of the timeplace. The movement has a barrel complete and a speed reducing mechanism cooperatively m... | 11/27/2007 |
| 7275859 | Display device for watch The invention concerns a display device for a watch movement comprising: a frame (110), an assembly of wheels pivotably mounted on the frame and wherein the angular position of a first (116) and a second (120) among them is based on the state of... | 10/02/2007 |
| 7274624 | Timepiece with power-reserve indication The invention concerns a timepiece including a mechanical power source (1) coupled, on the one hand, to first means (5) displaying time related information and, on the other hand, to a generator (2), a regulator circuit (6) for enslaving ... | 09/25/2007 |
| 7235949 | Battery capacity detection apparatus and detection method A detection device and method for accurately detecting the battery capacity remaining in the device independent of the operating mode of the device. When the battery-powered device is operating in a low load mode, the battery discharge voltage is A/D converted and t... | 06/26/2007 |
| 7187908 | Wrist-watch device having communication function, information display method, control program, and recording medium A user can easily identify the content of data (the value or the state of the data), such as a credit balance, stored in a contactless IC module provided in a wrist-watch device having a communication function. A timepiece control unit 14 of a timepiece modul... | 03/06/2007 |
| 7170825 | Power reserve display mechanism and mechanical timepiece having the same To provide a power reserve display mechanism having a mainspring remaining amount display showing a novel behavior and a mechanical timepiece having the same. A power reserve display mechanism of a mechanical timepiece includes a displacement conversion mechanism ha... | 01/30/2007 |
| 7161874 | Power generating type electronic timepiece The power generated by a power generating means (1) of a power-generating type electronic clock is measured by a first power generating sensing means (101) and a second power generating sensing means (102). The power generation level required wh... | 01/09/2007 |
| 7154816 | Electronic watch and electronic watch control method An electronic timepiece (10) comprises time information generating unit (A) for generating time information, information generating unit for generating information (function information, warning information, etc.) other than the time information, and power-sa... | 12/26/2006 |
| 7113452 | Electronic timepiece When a stem switch (8) is pulled out, a switch signal forming unit 9 outputs a signal (RS) indicating that effect, a control unit (13) receives the signal (RS) and starts clocking by a timer (13a). The control unit (13) rece... | 09/26/2006 |
| 7102964 | Time keeping apparatus and control method therefor When a time keeping apparatus is in a power saving mode, performing time display is stopped, and the apparatus periodically receives a time data from outside and sets the data to a second time counter 98 and an hour-and-minute time counter 99. When the... | 09/05/2006 |
| 7079451 | Time measurement device and method of controlling the time measurement device A time measurement device includes a power generator 2, secondary power source 31, current time counters 922 and 932, receiver circuit 42 for receiving a time standard radio wave, time display means 5 for displaying the curr... | 07/18/2006 |
| 7009914 | Electronic clock 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 po... | 03/07/2006 |
| 6975562 | Wearable electronic device with mode operation indicator A method for indicating that a wearable electronic device is operating in a selected mode, wherein the wearable electronic device comprises at least one hand operatively coupled to an actuation mechanism. The method comprises the steps of (a) moving the hand from a ... | 12/13/2005 |
| 6958954 | Device indicating the state of batteries designed to equip a watch The invention concerns a device for indicating the state of watch batteries. Said device comprises, in combination: a circuit for determining (34) at least a physical characteristic of the cell (10) which varies when it is nearly discharged, a circuit ... | 10/25/2005 |
| 6946813 | Step motor control device and electronic timepiece equipped with step motor control device A step motor control device detects a rotational driving state of a step motor. In a first detection period immediately after termination of the rotational driving state of the step motor, selected switch elements are controlled so that a first detection signal is o... | 09/20/2005 |
| 6934223 | Analogue electronic watch having a device for resetting the time following a power shortage The electronic watch includes analogue display means (1) formed of at least one hand (2) driven by at least one motor (3), a time base (4) for controlling means (8) for driving said motor, a rechargeable power source (9), me... | 08/23/2005 |
| 6915398 | Data reproduction system, data recorder and data reader preventing fraudulent usage by monitoring reproducible time limit A data reader includes: a memory card interface communicating with a memory card in which is recorded data such as video, the recorded date of that data, and a reproduction time limit of that data; a real time clock detecting the current date; a display unit reading... | 07/05/2005 |
| 6914407 | Step motor control device and electronic timepiece equipped with step motor control device A control device detects a rotational driving state of a step motor having a coil. First and second switch elements are connected to each other in series, and a node of the first and second switch elements are connected to one side of the coil during use of the cont... | 07/05/2005 |
| 6912181 | Electronic timepiece with controlled date display updating An electronic timepiece without system failure at the time of transfer from the power-saving mode to the display mode is provided. A power-saving control circuit 400 controls drive of a date dial displaying a date when updating a date display, which has been ... | 06/28/2005 |
| 6876602 | Electronic timepiece, information processing device, method of displaying charged condition of secondary cell, and computer product A first voltage detector detects whether the voltage of a secondary cell has reached to 1.2V and a first timer counts a time duration for which the voltage is equal to or above 1.2V. If the time counted by the first timer reaches one hour, a second timer starts coun... | 04/05/2005 |
| 6826124 | Timepiece with power reserve indication The present invention concerns a timepiece including a barrel, a spring housed in the barrel, time display members mechanically coupled to said barrel, an electric energy generator also coupled to said barrel, and a regulator circuit for enslaving the frequency of s... | 11/30/2004 |
| 6816439 | Rechargeable electronic watch and driving method of rechargeable electronic watch To extend the clock operation duration of a multi-functional rechargeable electronic watch, and to provide a rechargeable electronic watch that would not affect the feeling of use of said rechargeable electronic watch. A rechargeable electronic watch (10) ope... | 11/09/2004 |
| 6693852 | Electronic device, electronically-controlled mechanical timepiece, and electronic device controlling method An electronic device in which a braking torque can be increased while reduction in power generation is suppressed, and in which a rotor is prevented from stopping or rotating at an excessive speed. Such an electronic device includes a generator which is d... | 02/17/2004 |
| 6685352 | Timepiece power reserve indicator device The present invention concerns a power reserve indicator device (1) for a manually or automatically wound timepiece, said timepiece including a barrel, a mainspring housed in the barrel and time display elements mechanically coupled to said barrel, said i... | 02/03/2004 |
| 6678216 | Timepiece using spring as power To provide a power accumulation structure of a simple construction, in which a planetary mechanism is not used, for a timepiece using a spring as power. A power accumulation structure of a simple construction not using a planetary mechanism is a power acc... | 01/13/2004 |
| 6646960 | Electronic timepiece An electronic timepiece comprises power generation means for generating electricity by using external energy, storage means for storing electric energy received from the power generation means, time-indicating means powered by electric energy supplied fro... | 11/11/2003 |
| 6630852 | Power-generation detection circuit for use in an electronic device and power-generation detection method and power consumption control method for use in connection therewith A power-generation detection circuit for detecting a power-generation state by an AC voltage supplied from a power-generation device including a capacitor, and switching element, a resistor, and an inverter circuit which controls the charging of the capac... | 10/07/2003 |
| 6580665 | Electronic timepiece having power generating function An electronic timepiece is formed of a power generating device for generating power, a control device for driving on receipt of a power supply from the power generating device, a display device for displaying a time by an operation of the control device, ... | 06/17/2003 |
| 6563766 | Voltage detecting device, battery remaining voltage detecting device, voltage detecting method, battery remaining voltage detecting method, electronic timepiece and electronic device A voltage detection and a remaining battery voltage display for a secondary power source so as to notify the user of the remaining battery voltage of the secondary power source at the optimal timing and in an accurate manner. A voltage correlated to the p... | 05/13/2003 |
| 6532195 | Clock saver apparatus and methods Clock saver apparatus and methods which enable the restoration of clock operations in the event that a power outage is brief and without requiring that an operator reset the clock are described. In one embodiment, the clock is restored to a time setting e... | 03/11/2003 |
