Patent application number | Description | Published |
20100220555 | Electronic Device and Satellite Signal Reception Method for an Electronic Device - An electronic device has a reception unit that captures positioning information satellites and receives satellite signals transmitted from the captured positioning information satellites, a solar panel, and a reception control unit that controls the reception unit. The reception control unit includes an evaluation unit that evaluates the reception environment based on power generation by the solar panel, and a mode selection unit that, based on the result from the evaluation unit, selects a time information reception mode for receiving the satellite signals and acquiring time information, or a position and time information reception mode for receiving the satellite signals and acquiring positioning information and time information, and controls operation of the reception unit in the reception mode selected by the mode selection unit. | 09-02-2010 |
20110205678 | Protection Circuit And Electronic Device - A protection circuit that is used with a power supply that produces charging power, and a storage battery for which normal operation is conditional upon a terminal voltage being less than or equal to a maximum voltage, including: a first switch disposed to a first path that electrically connects the storage battery and the power supply; a second path that electrically connects the storage battery and a load; a voltage detection circuit that detects a terminal voltage of the storage battery; an over-charge detection circuit that monitors the storage battery terminal voltage and controls the first switch to turn off when the terminal voltage is detected to exceed the maximum voltage; and a control circuit that controls the monitoring operation interval of the over-charge detection circuit according to the terminal voltage of the storage battery detected by the voltage detection circuit. | 08-25-2011 |
20110280108 | Electronic Device - An electronic device that can display the current time reduces the number of times that the time must be manually set. The electronic device | 11-17-2011 |
20120243383 | Electronic Timepiece and Control Method Therefor - An electronic timepiece efficiently acquires leap second information, reduces power consumption, and enables displaying the correct time. A GPS wristwatch | 09-27-2012 |
20120269042 | Electronic Timepiece and Time Adjustment Method - An electronic timepiece efficiently receives satellite signals, reduces power consumption, and displays the correct time. A GPS wristwatch | 10-25-2012 |
20130051187 | Electronic Timepiece - An electronic timepiece can improve the frequency of satellite signal reception and reduce power consumption. Such timepiece, e.g., a wristwatch has a GPS device that executes a reception process that locks onto a GPS satellite and receives satellite signals; a reception control unit that controls the reception process; and a solar panel that detects illuminance. The reception control unit includes an illuminance-based reception control unit that runs a reception process based on the detected illuminance, and a scheduled reception control unit that runs a reception process when a preset scheduled time is reached. The illuminance-based reception control unit stops reception when a satellite is not locked onto within a first locking time, and the scheduled reception control unit stops reception when a satellite is not locked onto in a second locking time that is shorter than the first locking time. | 02-28-2013 |
20130051188 | Electronic Timepiece - An electronic timepiece can determine the reception state in detail, and can display the reception state with high precision. A GPS wristwatch 1 has a reception unit that receives a satellite signal transmitted from a positioning information satellite; a reception level calculating unit 47 that calculates a reception level from the signal strength of the satellite signal; and a reception level display unit 48 that displays the reception level calculated by the reception level calculating unit 47. The reception level calculating unit 47 selects a specific number of satellite signals received from the positioning information satellites in order of greatest signal strength, and calculates the reception level from the signal strengths of the selected satellite signals. | 02-28-2013 |
20130052977 | Satellite Signal Receiving Device and Electronic Device - A satellite signal reception device can reliably execute a satellite signal reception process. The satellite signal reception device has a reception time setting unit | 02-28-2013 |
20130308429 | Electronic Device and Satellite Signal Reception Method for an Electronic Device - An electronic device has a reception unit that captures positioning information satellite(s) and receives satellite signal(s) transmitted from the captured positioning information satellite(s), a solar panel, and a reception control unit that controls the reception unit. The reception control unit operates the reception unit and starts the reception operation when power generation by the solar panel that is greater than or equal to a preset power generation threshold value has continued for at least a specified outdoor determination time. | 11-21-2013 |
20140241131 | Electronic Timepiece - An electronic timepiece includes a light-transmitting dial; a solar panel which is arranged on a side opposite to a display surface of the dial; and a secondary battery to which power generated by the solar panel is charged. The solar panel is divided into seven or more solar cells and the respective solar cells are connected to one another in series. Since seven or more solar cells are connected in series, a lithium ion secondary battery whose electromotive voltage is high can be charged. Accordingly, a need for charging by means of an external battery charger can be eliminated and a wristwatch capable of internally having a device requiring larger current consumption such as a receiving device can be provided. | 08-28-2014 |
20140247700 | Electronic Timepiece and Time Correction Method of Electronic Timepiece - An electronic timepiece includes a timing unit that receives a satellite signal transmitted from a positioning information satellite and acquires time information; a positioning unit that receives the satellite signal transmitted from the positioning information satellite and acquires positioning information of a current location; a time zone setting unit that sets time zone information based on the positioning information of the current location which is acquired by the positioning unit; a time display unit that has at least a first time display unit for displaying a first time and a second time display unit for displaying a second time; and a time zone correction unit that corrects the first time using the time zone data and that does not correct the second time using the time zone information, if the time zone setting unit sets the time zone information. | 09-04-2014 |
20140247701 | Electronic Timepiece - An electronic timepiece includes a receiving device that receives a satellite signal transmitted from a positioning information satellite; a display device that displays a time; a time correction unit that acquires time information from the satellite signal received by the receiving device and corrects the time to be displayed on the display device; and a case that accommodates the receiving device, the display device and the time correction unit. Power consumption of the receiving device is 30 mW or less, and a volume of the case is 30,000 mm | 09-04-2014 |