Seiko Epson Corporation

Katsutoyo Inoue

Yasumasa Nakajima

Yuko Komatsu

Shigeaki Seki

Eiji Miyasaka

Keiko Okayasu

Akiko Obara

An electronic device and a time correction system acquire time zone-related information through a network and correct the current time at the current location, and reduce power consumption. An electronic timepiece has a time display unit; a communicator that connects to abase station; and a controller. The controller executes a base station information acquisition process of acquiring from the base station base station information unique to the base station, an acquired information evaluation process determining whether or not to acquire time zone-related information based on the base station information, a time zone information acquisition process of acquiring time zone-related information based on the base station information when acquiring time zone-related information is determined in the acquired information evaluation process, and a time correction process of correcting the displayed time based on the acquired time zone-related information.

Electronic timepiece, time correction system, and method of correcting display time

An electronic apparatus includes a communication interface configured to selectively receive a first signal having a first carrier frequency transmitted for a first period by a first transmitter, and a second signal having a second carrier frequency different from the first carrier frequency and transmitted for a second period not continuous with the first period by a second transmitter different from the first transmitter, and a control circuit configured to cause the communication interface to execute the first signal for a third period including the first period and to, when the communication interface does not receive the first signal during the third period, cause the communication interface to execute reception processing of the second signal for a fourth period including the second period and being not continuous with the third period.

Electronic apparatus

In an information delivery system, the terminal transmits a first request requesting time information to a network server, the network server transmits a second request requesting time information to a time server connected to a network in response to the first request, the network server receives first time information as a response to the second request from the time server, and after a lapse of a predetermined time from reception of the first request, the network server transmits second time information measured based on the first time information to the terminal.

Information delivery system, network server and method of controlling network server

A gateway device includes: a first communication unit that communicates with an electronic device; a second communication unit that communicates with a computer communication network; a third communication unit that communicates with a gateway device different from the gateway device and has a different communication scheme from the second communication unit; and a processing unit that controls communication. The processing unit performs control such that the electronic device and the computer communication network are able to communicate with each other via the second communication unit when the second communication unit is able to communicate with the computer communication network, and performs control such that the third communication unit enables the electronic device and the computer communication network to communicate with each other via the gateway device when the second communication unit is not able to communicate with the computer communication network.

Gateway device and communication system

A wristwatch-type notification apparatus that displays information by using indicating hands includes a display section that drives and rotates one or more of the plurality of indicating hands to notify a user of time information and a notification section that notifies the user of event information representing that a pre-specified condition is satisfied by moving, on the basis of a trigger produced in accordance with the event information, an indicating hand to a display position specified in accordance with the type of the event information associated with the trigger and causing the indicating hand to make reciprocating motion in the forward and reverse directions over a range including the display position.

Wristwatch-type notification apparatus

A drive method for an electrophoretic display device that has an electrophoretic device composed of a suspension fluid containing electrophoretic particles disposed between a common electrode and pixel electrodes is provided. No holding electrode is necessary. A driver drives the electrophoretic device by applying voltage between the common electrode and the pixel electrodes, and a controller controls the driver. The method involves redrawing the display to change the displayed image by applying to the common electrode pulse trains of different widths, each composed of a first potential and a second potential, at different times, based on certain conditions.

Drive method for an electrophoretic display device and an electrophoretic display device

A drive method for an electrophoretic display device that has an electrophoretic device composed of a suspension fluid containing electrophoretic particles disposed between a common electrode and a plurality of pixel electrodes, a driver that drives the electrophoretic device by applying voltage between the common electrode and the plural pixel electrodes, and a controller that controls the driver. The control method has a display redrawing process that changes the displayed image by applying a common electrode drive pulse that repeats two different potentials to the common electrode, and applying either of the two different potentials to the pixel electrodes according to the updated display content. The display redrawing process includes a first pulse application step that applies a first pulse train to the common electrode as the common electrode drive pulse train, and a second pulse application step that executes after the first pulse application step to apply a second pulse train to the common electrode as the common electrode drive pulse train, the pulses of the second pulse train being wider than the pulses of the first pulse train.

There is provided a method of driving an electrophoretic display device including a display unit that has a plurality of pixels and an electrophoretic element disposed between substrates forming one pair. The method includes setting an area that at least includes a pixel forming an image component that is formed to have a first gray scale and a pixel that is disposed to be adjacent to the pixel forming the contour of the image component and represents a second gray scale as an image removing area and selectively changing the pixels that constitute the image removing area to have the second gray scale.

Method of driving electrophoretic display device, electrophoretic display device, and electronic apparatus

A drive method for a display device that displays by causing charged particles to migrate by applying an electric field, including a gray level drive step of causing the particles to migrate to a gray level that is not a saturation state in which migration of the particles is saturated. The gray level drive step changes the display by causing the particles to migrate to produce a display color difference.

Drive method for a display device, drive device, display device, and electronic device

A dial indicator display device according has a needle indicator; a needle moving means for moving the needle indicator; a display panel disposed behind the needle indicator and capable of displaying an image; and a drive control means for controlling the needle moving means and driving the display panel. The drive control means includes a scale display control means for displaying a scale in a scale display area on the display panel overlapping the range of needle movement in plan view, a needle position detection means for detecting the position of the needle indicator, and an information display means. The scale display control means segments the scale display area into a scale area and a no-scale area not including the scale area based on the needle position detected by the needle position detection means, and displays a scale for reading values indicated by the needle indicator only in the scale area, and the information display means displays information in the no-scale area.

Dial indicator display device

The clock signal output device has a crystal oscillator for generating a reference clock signal and generating and outputting an output clock signal having a prescribed frequency on the basis of the reference clock signal. The device also has an atomic oscillator for generating a clock signal having higher precision than a crystal oscillator, an intermittent time management unit for intermittently driving the atomic oscillator, and a correction unit for receiving correction data for correcting the offset amount of the output clock signal on the basis of a clock signal each time the atomic oscillator is driven, and correcting the output clock signal on the basis of the correction data.

Growing community of inventors

Azumino, Japan

Katsutoyo Inoue