JP2015169500A - electronic watch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic watch that enables a user to manually set a time zone with a simple input operation.SOLUTION: An electronic watch 10 includes a winding crown 50, a time zone display 46, a function in which the time zone of the current location is automatically set on the basis of position information on the current location calculated from a satellite signal, and a function in which any time zone selected from the time zone display 46 is manually set, where the any time zone is selected through the operation of the winding crown 50.

Description

  The present invention relates to an electronic timepiece.

  Conventionally, an electronic timepiece having a world time function for receiving a satellite signal and displaying the local time of the current location has been known. For example, Patent Literature 1 discloses a wristwatch that includes a dial plate on which a map is displayed and a plurality of hands, and displays the current time zone and local time. Further, Non-Patent Document 1 includes a time zone display expressed by a time difference from Coordinated Universal Time (UTC) on the outer periphery of the dial, and displays the current time zone and the local time. A wristwatch is disclosed. These watches are equipped with a receiver that receives satellite signals from navigation satellites such as GPS (Global Positioning System), and receives the signals from four navigation satellites to receive the current position and time information. The time zone and time are automatically corrected.

JP 2009-175044 A

"Goods Press JULY 2013" Tokuma Shoten Co., Ltd., July 10, 2013, pages 75-81

  If the time zone of the current location is not automatically set in a state where satellite signals cannot be received or is difficult to receive, or if the user wants to correct the time in advance to the local time of the destination, it is necessary to manually set the time zone. However, since these electronic timepieces have many functions, it is necessary to use a plurality of input devices for manually setting the time zone. For this reason, there has been a problem that an input operation for manually setting the time zone is difficult.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 An electronic timepiece according to this application example includes a crown, a time zone display, a function of automatically setting the time zone of the current location based on position information of the current location calculated from satellite signals, and the time zone. A function of manually setting an arbitrary time zone selected from the display, wherein the arbitrary time zone is selected by operating the crown.

  According to this application example, the electronic timepiece is provided with a time zone display indicating the time zone of the displayed time. The electronic timepiece receives a satellite signal, calculates position information and time information of the current location, automatically sets the time zone of the current location and displays the local time, and an arbitrary time zone selected from the time zone display And a function for displaying the local time in the set time zone. An arbitrary time zone to be manually set is selected from the time zone display by an input operation of a crown provided in the electronic timepiece. Thereby, the electronic timepiece of this application example can manually set the time zone with one input device (crown). Therefore, it is possible to provide an electronic timepiece capable of manually setting the time zone with a simple input operation.

  Application Example 2 In the electronic timepiece described in the application example described above, the crown includes a plurality of operation positions, and the arbitrary time zone is selected at the operation position where the crown is drawn by one stage. preferable.

  According to this application example, the electronic timepiece is provided with a crown having a plurality of operation positions. For example, assuming that the position (fixed position) where the crown is pushed into the main body of the electronic timepiece is zero, generally the crown has a first stage where the crown is pulled out one stage and a two-stage where the crown is pulled out two stages. An operating position for the eyes is provided. The arbitrary time zone is selected from the time zone display by the operation of the crown when the crown is fixed at the first stage operation position, so that the time zone can be manually set by a simple input operation. Therefore, it is possible to provide an electronic timepiece capable of manually setting the time zone with a simple and easy-to-understand input operation.

  Application Example 3 In the electronic timepiece described in the application example described above, the crown includes a plurality of operation positions, and the arbitrary time zone is selected at the operation position where the crown is drawn in two stages. Is preferred.

  According to this application example, an arbitrary time zone is selected from the time zone display by operating the crown when the crown is fixed at the second-stage operation position. Since the operation position of the second stage is the position where the crown is pulled out to the maximum, the input operation for manually setting the time zone becomes easy to understand. Therefore, it is possible to provide an electronic timepiece capable of manually setting the time zone with a simple and easy-to-understand input operation.

  Application Example 4 In the electronic timepiece described in the application example, it is preferable that the crown has a rotation operation, and the arbitrary time zone is selected by the rotation operation of the crown.

  According to this application example, the crown is provided with a rotation operation for performing an input operation by rotating the crown. The time zone shown in the time zone display is switched according to the turning operation of the crown. As the arbitrary time zone, the time zone shown in the time zone display is selected by stopping the rotation operation of the crown. Therefore, the time zone can be manually set by a simple input operation. Therefore, it is possible to provide an electronic timepiece capable of manually setting the time zone with a simple and easy-to-understand input operation.

  Application Example 5 In the electronic timepiece described in the application example, it is preferable that the crown has a button operation, and the arbitrary time zone is selected by the button operation of the crown.

  According to this application example, the crown is provided with a button operation for performing an input operation by pushing the crown. The time zone shown in the time zone display can be switched according to the operation of the crown button. As the arbitrary time zone, the time zone shown in the time zone display is selected according to the operation of the crown button, so that the time zone can be manually set by a simple input operation. Therefore, it is possible to provide an electronic timepiece capable of manually setting the time zone with a simple and easy-to-understand input operation.

1 is an overall view of a GPS including an electronic timepiece according to an embodiment. The perspective view which shows the whole electronic timepiece. 6-side view showing the entire electronic timepiece. FIG. The fragmentary sectional view which shows the outline of an electronic timepiece. The schematic plan view which shows the external appearance of an electronic timepiece. The electric control block diagram of an electronic timepiece. The flowchart figure which shows the operation | movement of the manual setting of an electronic timepiece. The schematic plan view which shows the external appearance of the electronic timepiece which concerns on a modification. The flowchart figure which shows the operation | movement of the manual setting of an electronic timepiece.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the scale of each layer and each member is different from the actual scale so that each layer and each member can be recognized.

(Embodiment)
The electronic timepiece of the present embodiment has a world time function and a chronograph function. The world time function, for example, receives satellite signals transmitted from navigation satellites (GPS satellites) such as GPS, calculates position information and time information of the current location, and displays the local time. The chronograph function has a so-called stopwatch function for integrating and displaying time.
FIG. 1 is an overall view of a GPS including an electronic timepiece according to an embodiment. First, an outline of GPS in which the electronic timepiece 10 uses the satellite signal transmitted from the GPS satellite 8 to obtain the current position information and time information will be described.

  The electronic timepiece 10 is a wristwatch that receives a radio wave (satellite signal) from the GPS satellite 8 and corrects the internal time, and is a surface (hereinafter referred to as a surface) opposite to a surface that contacts the arm (hereinafter referred to as a back surface). Time). The GPS satellite 8 is a navigation satellite orbiting in a predetermined orbit above the earth, and transmits a navigation message superimposed on a 1.57542 GHz radio wave (L1 wave) to the ground. In the following description, the 1.57542 GHz radio wave on which the navigation message is superimposed is referred to as a satellite signal. The satellite signal is a right-handed circularly polarized wave.

  Currently, about 31 GPS satellites 8 (only four are shown in FIG. 1) orbit around the earth, and in order to identify which GPS satellite 8 the satellite signal is transmitted from, The GPS satellite 8 superimposes a unique pattern of 1023 chips (1 ms period) called a C / A code (Coarse / Acquisition Code) on the satellite signal. In the C / A code, each chip is either +1 or -1, and looks like a random pattern. Therefore, by correlating the satellite signal and the pattern of each C / A code, the C / A code superimposed on the satellite signal can be detected.

  The GPS satellite 8 is equipped with an atomic clock, and the satellite signal includes extremely accurate GPS time information measured by the atomic clock. Further, a slight time error of the atomic clock mounted on each GPS satellite 8 is measured by the control segment on the ground, and the satellite signal includes a time correction parameter for correcting the time error. The electronic timepiece 10 receives a satellite signal transmitted from one GPS satellite 8, and uses the GPS time information and the time correction parameter included therein to obtain an accurate time (time information) as an internal time. And

The satellite signal includes orbit information indicating the position of the GPS satellite 8 on the orbit. The electronic timepiece 10 can perform positioning calculation using GPS time information and orbit information. The positioning calculation is performed on the assumption that a certain amount of error is included in the internal time of the electronic timepiece 10.
That is, in addition to the x, y, and z parameters for specifying the three-dimensional position of the electronic timepiece 10, the time error is also an unknown number. For this reason, the electronic timepiece 10 generally receives satellite signals transmitted from four or more GPS satellites 8 and performs positioning calculation using GPS time information and orbit information included therein to determine the current location. Find location information.

Next, a schematic configuration of the electronic timepiece 10 will be described.
In the following description, “n hour direction” (where n is an arbitrary natural number) is the dial 11 when the outer periphery is expressed in 12 hours with “UTC” displayed on the dial ring 40 as 12:00. It is the direction which looked at the perimeter from the center of.
FIG. 2 is a perspective view showing the external appearance of the electronic timepiece, and FIG. 3 is a six-side view showing the external appearance of the electronic timepiece. FIG. 4 is a partial cross-sectional view showing an outline of the electronic timepiece.
FIG. 3A is a plan view of the electronic timepiece as viewed from the front side. FIG.3 (b) is the side view which looked at 9 o'clock direction from 3 o'clock direction. FIG.3 (c) is the side view which looked at 6 o'clock direction from 12 o'clock direction. FIG.3 (d) is the side view which looked at 3 o'clock direction from 9 o'clock direction. FIG.3 (e) is the side view which looked at 12 o'clock direction from 6 o'clock direction. FIG. 3F is a plan view seen from the back side. In addition, the electronic timepiece of this embodiment has a world time function and a chronograph function.

  As shown in FIGS. 2 and 3, the electronic timepiece 10 includes an exterior case 30, a cover glass 33, and a back cover 34. The exterior case 30 is configured by fitting a bezel 32 made of ceramic to a cylindrical case 31 made of metal. A disk-shaped dial 11 is provided on the inner peripheral side of the bezel 32 via a ring-shaped dial ring 40 made of plastic, and the dial 11 is provided with hands 21, 22, and 23. .

The dial 11 is provided with a first small clock 70 having a pointer 71, a second small clock 80 having a pointer 81, a third small clock 90 having a pointer 91, and a calendar display 15.
The first small clock 70 is provided in the 2 o'clock direction from the center of the dial 11. The second small clock 80 is provided in the 10 o'clock direction from the center of the dial 11. The third small clock 90 is provided in the 6 o'clock direction from the center of the dial 11. The calendar display 15 is provided at 4 o'clock from the center of the dial 11.
The dial 11, the hands 21, 22, 23, the first small clock 70, the second small clock 80, the third small clock 90, the calendar display 15 and the like are visible through the cover glass 33.

  On the side of the exterior case 30, from the center of the dial 11, an A button 61 is located at the 8 o'clock position, a B button 62 is located at the 10 o'clock direction, a C button 63 is located at the 2 o'clock position, and 4 o'clock A D button 64 is provided at the position in the direction. By operating these A button 61, B button 62, C button 63, and D button 64, an input signal corresponding to the operation (button operation) is output.

  On the side surface of the exterior case 30, a crown 50 is provided at a position in the 3 o'clock direction from the center of the dial 11. The crown 50 shown in FIGS. 2 and 3 represents a fixed position state (position of the 0th stage 50a (see FIG. 5)) pushed into the exterior case 30 of the electronic timepiece 10. The crown 50 is provided with operation positions of a first stage 50b (see FIG. 5) from which the crown 50 is pulled out by one stage and a second stage 50c (see FIG. 5) from which the crown 50 is pulled out by two stages. Further, the crown 50 is provided with a rotation operation for performing an input operation by rotating the crown 50. By operating the crown 50, an input signal corresponding to the operation position and the rotation operation of the crown 50 is output.

As shown in FIG. 4, the electronic timepiece 10 has an opening on the front side on which the dial 11 is mounted among the two openings provided on the front and back of the metal exterior case 30. 33, and the opening on the back side is closed with a back cover 34 made of metal.
Inside the outer case 30, the dial ring 40 attached to the inner periphery of the bezel 32, the light-transmitting dial plate 11, the pointer shaft 25 penetrating the dial plate 11, and the needle shaft 25 circulates around the needle shaft 25. Needles 21, 22, and 23, and a driving mechanism 140 that drives the hands 21, 22, and 23 are provided.
The pointer shaft 25 is provided along a central axis that passes through the center of the dial 11 in a plan view of the exterior case 30 and extends in the front and back direction.

  The dial ring 40 has an outer peripheral end that is in contact with the inner peripheral surface of the bezel 32, a flat plate portion that is parallel to the cover glass 33, and an inner peripheral end that is in contact with the dial 11. An inclined portion inclined toward the plate 11 side is provided. The dial ring 40 has a ring shape in plan view and a mortar shape in sectional view. A donut-shaped storage space is formed by the flat plate portion of the dial ring 40, the inclined portion, and the inner peripheral surface of the bezel 32, and the ring-shaped antenna body 110 is stored in this storage space. .

  The antenna body 110 is formed by using a ring-shaped dielectric as a base material and forming a metal antenna pattern on the base body by plating or silver paste printing. The antenna body 110 is disposed on the outer periphery of the dial plate 11, disposed on the inner peripheral surface side of the bezel 32, and further covered with a dial ring 40 formed of plastic and a cover glass 33, so that the antenna body 110 is good. Secure reception. As the dielectric, a dielectric material that can be used at high frequencies, such as titanium oxide, can be mixed with the resin and molded, and this makes it possible to further reduce the size of the antenna in combination with the shortening of the wavelength of the dielectric.

  The dial 11 is a circular plate that displays the time inside the outer case 30, is formed of a light-transmitting material such as plastic, and includes hands 21, 22, and 23 between the cover glass 33, It is arranged inside the dial ring 40.

  A solar panel 135 that performs photovoltaic power generation is provided between the dial plate 11 and the main plate 125 to which the drive mechanism 140 and the like are attached. The solar panel 135 is a circular flat plate in which a plurality of solar cells (photovoltaic elements) that convert light energy into electric energy (electric power) are connected in series. The solar panel 135 also has a sunlight detection function. The dial 11, the solar panel 135, and the main plate 125 have a pointer shaft 25, a pointer 71 of the first small clock 70, a pointer 81 of the second small clock 80, and a pointer shaft of the pointer 91 of the third small clock 90 (not shown). )) And an opening for the calendar display 15 is formed.

  The drive mechanism 140 is attached to the ground plane 125 and is covered with the circuit board 120 from the back side. The drive mechanism 140 has a step motor and a wheel train such as a gear, and the hands 21, 22 and 23 are driven by the step motor rotating the needle shaft 25 via the wheel train. 2 and 3, the pointer 71 of the first small clock 70, the pointer 81 of the second small clock 80, and the pointer 91 of the third small clock 90 also have a similar drive mechanism (not shown). The hands 71, 81, 91 are driven.

  The circuit board 120 includes a balun 121, a receiving unit (GPS module) 122, a control unit 150, and a secondary battery 130 such as a lithium ion battery. The secondary battery 130 is charged with the power generated by the solar panel 135 and accumulates the power. Thereby, the electronic timepiece 10 can be continuously driven. Further, the circuit board 120 and the antenna body 110 are connected by using antenna connection pins 115. The balun 121 is a balanced-unbalanced conversion element, and converts a balanced signal from the antenna body 110 operated by balanced feeding into an unbalanced signal that can be handled by the receiving unit 122.

  The antenna body 110 is fed through a feeding point, and an antenna connection pin 115 disposed on the back side of the antenna body 110 is connected to the feeding point. The antenna connection pin 115 is a pin-shaped connector made of metal and protrudes from the circuit board 120. The antenna connection pin 115 is inserted into the storage space through the insertion hole opened in the ground plate 125. Thereby, the circuit board 120 and the antenna body 110 inside the storage space are connected by the antenna connection pins 115.

  In the present embodiment, the electronic timepiece 10 has been described as using the power generation by the solar panel 135 and the secondary battery 130 as drive sources, but a primary battery system or another charging system may be used. By using the primary battery system as a drive source, the mechanism in the outer case 30 can be simplified. In addition, the electronic timepiece of the present invention is used even in places where there is no light irradiation enough to perform photovoltaic power generation by using a secondary battery that stores electricity by a charging method such as electromagnetic induction, or in places where it is difficult to replace the battery. can do.

Next, the display function of the electronic timepiece 10 will be described. FIG. 5 is a schematic plan view showing the appearance of the electronic timepiece.
The electronic timepiece 10 of the present embodiment has a time display for displaying the local time (internal time) obtained by the world time function on the dial 11 and an integrated display for displaying the time accumulated by the chronograph function. I have.
The time display is a generic name for a time display representing “hour”, a time display representing “minute”, and a time second display representing “second”.
The integrated display is a general term for an integrated time display indicating “hour”, an integrated minute display indicating “minute”, and an integrated second display indicating “second”.

First, the display function of the dial 11 will be described. As shown in FIG. 5, the dial 11 includes a time display 24 on which a scale that divides the outer circumference into 60 divisions and a time display on which a scale (bar index) that divides the outer circumference into 12 divisions are written. Yes. The pointer 22 indicates the “minute” of the local time (internal time) obtained by the world time function using the hour / minute display 24. The pointer 23 indicates the “hour” of the local time (internal time) obtained by the world time function using the time display.
The outermost periphery of the dial plate 11 is provided with an integrated second display in which a 1/5 scale that further divides the scale of the time display 24 into 5 parts is written. The pointer 21 indicates the “second” of the time accumulated by the chronograph function using the accumulated second display.

  Next, the display function of the first small clock 70 will be described. The first small clock 70 is provided with a scale 72 that divides the outer periphery of the first small clock 70 into 60 divisions, and an integrated display 72 on which numbers from 10 to 60 are written in 10 steps. The pointer 71 indicates the “minute” of the time accumulated by the chronograph function using the accumulated minute display 72.

  Next, the display function of the second small clock 80 will be described. The second small clock 80 includes a satellite acquisition number display 82 that indicates the number of satellites that can receive satellite signals, a satellite signal reception result display 83, and a time / second display 84 that indicates the second of the local time (internal clock). ing.

  The satellite capture number display 82 is provided on the outer periphery of the second small clock 80. In the satellite capture number display 82, a scale that divides the outer periphery into 12 parts and numbers from “0” to “11” are written. When the user operates the B button 62 to cause the electronic timepiece 10 to manually receive a satellite signal, the pointer 81 changes the satellite capture number indicating the number of GPS satellites 8 that can receive the satellite signal from “0” to “ Indicated by any number up to "11". Thereby, the number of captured satellites is displayed.

  The time / second display 84 is provided on the outer periphery of the second small clock 80. The time / second display 84 has a scale that divides the outer periphery into 60 divisions. The pointer 81 indicates the “second” of the local time (internal time) using the time / second display 84.

  The reception result display 83 is provided on the inner periphery of the second small clock 80. In the reception result display 83, in the time / second display 84, an alphabetical “Y” notation 83a is indicated in the range from 45 seconds to 60 seconds, and an alphabetic “N” notation 83b is indicated in the range from 30 seconds to 45 seconds. Has been. The “Y” notation 83a and the “N” notation 83b are symmetric with respect to a straight line connecting 15 seconds and 45 seconds, and have a scale (long scale) that overlaps the outer circumference of the second sub-clock 80 with 12 divisions (long scale). It is provided at a position that does not become necessary. As a result, a scale that divides the outer periphery of the second small clock 80 into 12 divisions, a scale that divides the 60 divisions, and the reception result display 83 into the second small clock 80 with a small area while ensuring legibility and a good balance. Can be laid out. The letters “Y” notation 83a and “N” notation 83b indicate the satellite signal reception result (Y: reception success, N: reception failure) and satellite signal automatic reception (Y: automatic reception ON, N: automatic). Receiving OFF) setting.

When the user operates the B button 62, the pointer 81 indicates either the “Y” notation 83a or the “N” notation 83b, and displays the reception result of the satellite signal. Further, the user operates the A button 61 and the B button 62 to set ON / OFF of automatic reception of satellite signals by setting the pointer 81 to the “Y” notation 83a or the “N” notation 83b. Can do.
In this embodiment, the “Y” notation 83a is provided at the 52-second position and the “N” notation 83b is provided at the 38-second position. However, the present invention is not limited to this. It is preferable that the “Y” notation 83a and the “N” notation 83b are provided at a position where the small clock including the reception result display 83 is provided is easily visible.

Next, the display function of the third small clock 90 will be described. On the outer periphery of the third small clock 90, an integrated display (display during integration 92) relating to the chronograph function, a summer time display 93 relating to the world time function, a charge amount display 94, a satellite signal reception prohibition display 95, and a satellite signal The reception mode display 96 is combined and displayed.
In the following description of the outer peripheral range, “n hour direction” (n is an arbitrary natural number) is expressed as “0” displayed on the third small clock 90 at 12 o'clock and the outer periphery is expressed in 12 hours. It is the direction when the outer periphery is seen from the center of the circle. Further, “range from n hour direction to m hour direction” (n and m are arbitrary natural numbers) is a range in which the center of the third sub-clock 90 is represented clockwise.

  The integration time display 92 is provided in the range from the 12 o'clock direction to the 6 o'clock direction on the outer periphery of the third small clock 90. In the integration time display 92, a scale which divides this range into 6 and numbers from “0” to “5” are described. The pointer 91 indicates the “hour” of the time accumulated by the chronograph function using the accumulated time display 92.

  The summer time display 93 is provided in a range from the 6 o'clock direction to the 7 o'clock direction on the outer periphery of the third small clock 90. In the summer time display 93, an English letter “DST” and a symbol “O” are written. DST (daylight saving time) means daylight saving time, and these letters and symbols represent the setting of daylight saving time (DST: daylight saving time ON, ○: daylight saving time OFF). By operating the crown 50 and the B button 62 by the user and setting the hands 91 to “DST” or “◯”, the electronic timepiece 10 can be set to ON / OFF for daylight saving time.

The charge amount display 94 is provided in a range from the 7 o'clock direction to the 9 o'clock direction on the outer periphery of the third small clock 90. The charge amount display 94 is a crescent sickle symbol with a thick base at 9 o'clock and a thin tip at 7 o'clock along the outer circumference, and a power indicator for the secondary battery 130 (see FIG. 4). Is written. The pointer 91 indicates one of the base end, the middle, and the front end depending on the remaining battery level.
The charge amount display 94 also serves as a reception permission display. The user operates the A button 61 to move the point indicated by the pointer 91 from a reception prohibition display 95 described later to a charge amount display 94, so that the electronic timepiece 10 can receive a satellite signal. In the present embodiment, the reception permission display is described as being used also as the charge amount display 94. However, the reception permission display and the charge amount display 94 may be provided respectively.

  The reception prohibition display 95 is provided in the range from the 9 o'clock direction to the 10 o'clock direction on the outer periphery of the third small clock 90. On the reception prohibition display 95, an airplane-shaped symbol is written, which represents a setting for prohibiting reception of satellite signals. When an aircraft takes off and landing, this setting is also called an in-flight mode because the reception of satellite signals is prohibited by the Aviation Law. The user operates the A button 61 to move the point indicated by the pointer 91 and select the reception prohibition display 95 (in-flight mode), whereby the electronic timepiece 10 can stop receiving satellite signals.

  The reception mode display 96 is provided in the range from the 10 o'clock direction to the 12 o'clock direction on the outer periphery of the third small clock 90. In the reception mode display 96, numerals “1” and “4+” and symbols are written, and these numerals and symbols indicate the reception mode of the satellite signal. “1” means that the GPS time information is received and the internal time is corrected, and “4+” means that the GPS time information and the orbit information are received, and the internal time and a time zone described later are corrected. . When the user operates the B button 62, the pointer 91 indicates either “1” or “4+”, and indicates the reception mode of the satellite signal received immediately before by the electronic timepiece 10.

  The operation using the A button 61, the B button 62, the C button 63, the D button 64, and the crown 50 is an example, and may be operated using an input device different from the description.

Next, the display function of the calendar display 15 will be described.
The calendar display 15 is provided in an opening portion in which the dial 11 is opened in a rectangular shape, and numbers can be visually recognized from the opening portion. This number represents the “day” of the date.

Here, the relationship among Coordinated Universal Time (UTC), time difference, standard time, and time zone will be described.
A time zone is an area that uses a common standard time, and currently there are 40 types of time zones. Each time zone is distinguished by a time difference between standard time and UTC. For example, Japan belongs to a time zone of +9 hours (time difference) using standard time which is 9 hours ahead of UTC. The standard time used in each time zone can be obtained from UTC and the time difference between UTC.

Next, the time zone display 46 provided on the dial ring 40 and the bezel 32 will be described. The time zone display 46 is a general term for a time difference display 45 written on the dial ring 40 and a city display 35 written on the bezel 32.
In a plan view from the front side, the dial ring 40 includes an alphabetical character “UTC” indicating a coordinated universal time as a time difference reference, and a numerical value or symbol representing the time difference between the standard time and UTC used in the time zone. A time difference display 45 is provided.
The time difference between the local time indicated by the hands 21, 22 and 23 and UTC can be confirmed on the time difference display 45 indicated by the hands 21 by pulling the crown 50 to the operation position of the first stage 50b. In this embodiment, the time is expressed in alphabetical letters “UTC” at the time of global agreement, and the time difference between standard time and UTC is indicated by an integer and a symbol “•”, but other alphanumeric characters or symbols are used. May be expressed.

The bezel 32 is provided with a city display 35 in which a code representing a representative city name of a time zone corresponding to the time difference written on the dial ring 40 is provided. In this embodiment, a three-letter code abbreviated with three alphabetic characters is used for the representative city name. “LON” is London, “PAR” is Paris, “CAI” is Cairo, “JED” is Jeddah, “DXB” is Dubai, “KHI” is Karachi, “DEL” is Delhi, “DAC” is Dhaka, “BKK” "Bangkok", "BJS" is Beijing, "TYO" is Tokyo, "ADL" is Adelaide, "SYD" is Sydney, "NOU" Nemea, "WLG" is Wellington, "TBU" is Nukualofa, "CXI" is Kirisima Si Island, "MDY" is Midway Island, "HNL" is Honolulu, "ANC" is Anchorage, "LAX" is Los Angeles, "DEN" is Denver, "CHI" is Chicago, "NYC" is New York, "CCS" is Caracas, “SCL” for Santiago, “RIO” for Rio de Janeiro, “FEN” for Fernando de Noronha, “PD "I represent the Azores, respectively. For example, the code “TYO” represents Tokyo, and the number “9” in the time difference display 45 written on the dial ring 40 corresponding to this code makes it easy for Tokyo to use UTC + 9 hours standard time. Can be judged.
In the present embodiment, the representation of the representative city names corresponding to the time differences of some of the time difference displays 45 is omitted for the purpose of restricting the display space and improving the visibility. Moreover, the representation method of a representative city name is an example, and may be represented by other methods.

  The time zone of the local time (internal time) displayed by the hands 21, 22, and 23 can be confirmed on the time zone display 46 indicated by the hand 21 by pulling the crown 50 to the operation position of the first stage 50b. For example, when the pointer 21 indicates “TYO” and “9” on the time zone display 46, it can be understood that the user is currently in a time zone of +9 hours with Tokyo as a representative city.

Next, the electrical configuration of the electronic timepiece 10 will be described.
FIG. 6 is an electric control block diagram of the electronic timepiece. As shown in FIG. 6, the electronic timepiece 10 includes a control unit 150 having a basic configuration of a CPU (Central Processing Unit) 153, a RAM (Random Access Memory) 154, and a ROM (Read Only Memory) 155, and a receiving unit (GPS module). ) 122, an input device 157, and peripheral devices for the drive mechanism 140. Each of these devices transmits and receives data via the data bus 159. The input device 157 is the crown 50, the A button 61, the B button 62, the C button 63, and the D button 64 shown in FIGS. The electronic timepiece 10 includes a rechargeable secondary battery 130 (see FIG. 4) serving as a power source.

  The receiving unit 122 includes an antenna body 110, processes satellite signals received via the antenna body 110, and acquires GPS time information and position information. The antenna body 110 is transmitted from a plurality of GPS satellites 8 (see FIG. 1) orbiting the earth over a predetermined orbit, and the radio wave of the satellite signal that has passed through the cover glass 33 and the dial ring 40 shown in FIG. Receive.

  Although not shown, the receiving unit 122 is an RF (Radio Frequency) unit that receives a satellite signal transmitted from the GPS satellite 8 (see FIG. 1) and converts it into a digital signal, as in a normal GPS device. BB unit (baseband unit) that performs correlation determination of received satellite signal and demodulates navigation message, and information acquisition unit that acquires and outputs GPS time information and orbit information from navigation message demodulated by BB unit And. That is, the receiving unit 122 functions as a receiving unit that receives a satellite signal transmitted from the GPS satellite 8 and outputs GPS time information and orbit information based on the reception result.

  The RF unit includes a bandpass filter, a PLL circuit, an IF filter, a VCO (Voltage Controlled Oscillator), an ADC (A / D converter), a mixer, an LNA (Low Noise Amplifier), an IF amplifier, and the like. The satellite signal extracted by the bandpass filter is amplified by the LNA, mixed with the VCO signal by the mixer, and down-converted to IF (Intermediate Frequency). The IF mixed by the mixer passes through the IF amplifier and IF filter, and is converted to a digital signal by the ADC.

  The BB unit generates a local code generating unit that generates a local code composed of the same C / A code as that used at the time of transmission by the GPS satellite 8, and a correlation value between the local code and a reception signal output from the RF unit. And a correlation unit to calculate. If the correlation value calculated by the correlation unit is equal to or greater than a predetermined threshold, the C / A code used for the received satellite signal matches the generated local code, and the satellite signal is Can be captured (synchronized). Therefore, the navigation message can be demodulated by correlating the received satellite signal with the local code.

  The information acquisition unit acquires GPS time information and orbit information from the navigation message demodulated by the BB unit. The navigation message includes preamble data, TOW (Time of Week, also referred to as “Z count”) of HOW word, and subframe data. There are subframe data from subframe 1 to subframe 5, and each subframe includes, for example, satellite correction data including week number data and satellite health data, and ephemeris (detailed orbit information for each GPS satellite 8). ) And almanac (rough orbit information of all GPS satellites 8). Therefore, the information acquisition unit can acquire GPS time information and orbit information by extracting a predetermined data portion from the received navigation message.

The RAM 154 and the ROM 155 are storage units of the electronic timepiece 10.
The ROM 155 stores programs executed by the CPU 153, time zone information, and the like. The time zone information is data for managing position information (latitude / longitude) of a region (time zone) using a common standard time and a time difference with respect to UTC.
The CPU 153 uses the RAM 154 as a work area and executes various programs, controls, and timings by executing programs stored in the ROM 155. This timing is performed, for example, by counting the number of reference signal pulses from an oscillation circuit (not shown).

  In the automatic time zone setting, the CPU 153 includes time information calculated from GPS time information and time correction parameters, position information (latitude, longitude) of the current location calculated from GPS time information and orbit information, and a ROM 155 (storage unit). The time zone of the current location is set (automatically set) in the RAM 154 based on the time zone information stored in (), and the internal time is corrected. The CPU 153 performs drive control of the drive mechanism 140 so that the internal time is indicated. As a result, the internal time is indicated on the electronic timepiece 10 by the time display indicated by the hands 21, 22, 23 (see FIG. 5).

  In the manual setting of the time zone, the CPU 153 detects the input signal of the input device 157 (crown 50) and selects the time zone. The selected time zone is set in the RAM 154 (manual setting), and the internal time is corrected. The CPU 153 performs drive control of the drive mechanism 140 so that the internal time is indicated. As a result, the internal time is indicated on the electronic timepiece 10 by the time display indicated by the hands 21, 22, 23 (see FIG. 5).

  Next, the manual setting operation of the electronic timepiece 10 will be described. FIG. 7 is a flowchart showing the flow of manual setting of the time zone of the electronic timepiece 10.

  First, in step S1, the CPU 153 determines whether the crown 50 is pulled to the operation position of the first stage 50b. If it is pulled to the first stage operation position (S1: Yes), the process proceeds to step S2. If it is not pulled to the operation position of the first stage 50b (S1: No), the process proceeds to step S10.

  In step S2, the time zone set in the electronic timepiece 10 is displayed. The CPU 153 detects the input signal pulled by the crown 50 to the operation position of the first stage 50b and drives the drive mechanism 140 (see FIG. 4), so that the pointer 21 (see FIG. 5) is set in the RAM 154. A time zone display 46 (see FIG. 5) corresponding to the current time zone is indicated.

  In step S3, the CPU 153 determines whether the crown 50 has been rotated. If the rotation is performed (S3: Yes), the process proceeds to step S4. When the rotation operation is not performed (S3: No), the process proceeds to step S9.

  In step S4, the CPU 153 moves the pointer 21. The CPU 153 detects the input signal of the clockwise rotation operation of the crown 50 and drives the drive mechanism 140 (see FIG. 4) to drive the pointer 21 clockwise. Further, the CPU 153 detects the input signal of the counterclockwise rotation operation of the crown 50 and drives the driving mechanism 140 (see FIG. 4) to drive the pointer 21 counterclockwise. Specifically, the user rotates the crown 50 and moves it toward an arbitrary time zone where the point indicated by the pointer 21 is to be manually set. In addition, the relationship between the rotation direction of the crown 50 and the rotation direction of the pointer 21 is an example, and the present invention is not limited to this.

  In step S5, the CPU 153 determines whether the rotation operation of the crown 50 is stopped. When the rotation operation is stopped (S5: Yes), the process proceeds to step S6. If the rotation operation is not stopped (S5: No), the process returns to step S4.

  In step S6, the CPU 153 selects a time zone. When the input signal of the rotation operation of the crown 50 is interrupted, the CPU 153 stops the movement of the pointer 21 by stopping the driving of the driving mechanism 140 (see FIG. 4). Then, the CPU 153 selects the time zone indicated by the stopped pointer 21 as an arbitrary time zone for manually setting the time zone. Specifically, the user turns the crown 50 to move the pointer 21, and stops turning the crown when the pointer 21 points to an arbitrary time zone to be manually set.

  In step S7, the CPU 153 manually sets the time zone. The CPU 153 sets the arbitrary time zone selected in step S6 in the RAM 154. This operation is referred to as manual setting of the time zone when the user operates the crown 50 and selects an arbitrary time zone from the time zone display 46 (see FIG. 5).

  In step S8, the CPU 153 changes the internal time according to the manually set time zone.

  In step S9, the CPU 153 determines whether the crown 50 has been returned to the 0th stage 50a. If it is returned (S9: Yes), the process proceeds to step S10. If not returned (S9: No), the process returns to step S2.

  In step S10, the CPU 153 detects the input signal when the crown 50 is returned to the 0th stage 50a, and drives the drive mechanism 140 (see FIG. 4) to display the internal time.

  The electronic timepiece 10 of this embodiment can select an arbitrary time zone with one input device (crown 50). Further, since the rotation direction of the crown 50 and the moving direction of the pointer 21 for selecting the time zone are the same, an intuitive operation is possible. Furthermore, since the crown 50 is highly waterproof and can prevent moisture from entering due to the time zone selection operation, the reliability of the electronic timepiece 10 can be improved.

  In the present embodiment, the radio wave transmitted from the GPS satellite 8 is used as the satellite signal. However, the present invention is not limited to this. For example, a satellite signal (radio wave) of a global navigation satellite system (GNSS) such as Galileo or GLONASS (Global Navigation Satellite System) can be used.

As described above, according to the electronic timepiece 10 according to the present embodiment, the following effects can be obtained.
The electronic timepiece 10 includes a time zone display 46 indicating the time zone of the displayed time. The electronic timepiece 10 receives the satellite signal 8, calculates position information and time information of the current location, automatically sets the time zone of the current location and displays the local time, and an arbitrary selected from the time zone display 46. A function for manually setting the time zone and displaying the local time of the set time zone. The electronic timepiece 10 is provided with a crown 50 having operating positions of the first stage 50b and the second stage 50c and a rotating operation for rotating and performing an input operation. The time zone shown on the time zone display 46 is indicated by the pointer 21 in accordance with the turning operation of the crown 50 pulled out to the operation position of the first stage 50b. An arbitrary time zone to be manually set is selected by stopping the rotation operation of the crown 50 in the time zone shown in the time zone display 46. Thereby, the time zone can be manually set by a simple input operation. Therefore, it is possible to provide an electronic timepiece capable of manually setting the time zone with a simple and easy-to-understand input operation.

  The selection and setting of an arbitrary time zone has been described as being performed by the crown 50 at the operation position of the first stage 50b, but is not limited thereto. The crown 50 may be performed at the operation position of the second stage 50c. The crown may have an operation position with a larger number of stages and may be performed at an operation position of an arbitrary stage.

  The present invention is not limited to the above-described embodiment, and various changes and improvements can be added to the above-described embodiment. A modification will be described below.

(Modification)
FIG. 8 is a schematic plan view showing the appearance of an electronic timepiece according to a modification.
In the above-described embodiment, it has been described that an arbitrary time zone is selected by a rotation operation of the crown 50, but the present invention is not limited to this configuration.
Hereinafter, an electronic timepiece 200 according to a modification will be described. In addition, about the component same as embodiment, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  As shown in FIG. 8, the crown 250 is provided with a button operation for performing an input operation by pushing the crown 250. By operating the crown 250, an input signal corresponding to the button operation of the crown 250 is output. The crown 250a indicates a fixed position, and the crown 250b indicates a state in which an input operation is performed.

  Next, the manual setting operation of the electronic timepiece 200 will be described. FIG. 9 is a flowchart showing a flow of manual setting of the time zone of the electronic timepiece 200.

  First, in step S11, the CPU 153 determines whether the crown 250 has been operated for 3 seconds. If the button is operated for 3 seconds (S11: Yes), the process proceeds to step S2. If no push button operation has been performed for 3 seconds (S11: No), the process proceeds to step S20.

  In step S12, the time zone set in the electronic timepiece 200 is displayed. The CPU 153 detects an input signal when the crown 250 is operated for 3 seconds and drives the drive mechanism 140 (see FIG. 4), so that the pointer 21 (see FIG. 8) is set to the time zone set in the RAM 154. The corresponding time zone display 46 (see FIG. 8) is indicated.

  In step S13, the CPU 153 determines whether or not the crown 250 has been operated. If the button is operated (S13: Yes), the process proceeds to step S14. If the button is not operated (S13: No), the process proceeds to step S19.

  In step S <b> 14, the CPU 153 moves the pointer 21. The CPU 153 detects the input signal of the button operation of the crown 250 and drives the driving mechanism 140 (see FIG. 4) to drive the pointer 21 so that the point indicated by the pointer 21 is displayed adjacently. Move to the time zone.

  In step S15, the CPU 153 determines whether the crown 250 has been operated. If the button is operated (S15: Yes), the process returns to step S14. If the button is not operated (S15: No), the process proceeds to step S16. Specifically, the user presses the crown 250 as many times as necessary to move the point indicated by the pointer 21 to an arbitrary time zone in which it is desired to manually set.

  In step S16, the CPU 153 selects a time zone. The CPU 153 selects the time zone indicated by the pointer 21 as an arbitrary time zone for manually setting the time zone.

  In step S17, the CPU 153 manually sets the time zone. The CPU 153 sets the arbitrary time zone selected in step S16 in the RAM 154. This operation is called manual setting of the time zone when the user operates the crown 250 and selects an arbitrary time zone from the time zone display 46 (see FIG. 8).

  In step S18, the CPU 153 changes the internal time based on the manually set time zone.

  In step S19, the CPU 153 determines whether the crown 250 has been operated for 3 seconds. If the button is operated for 3 seconds (S19: Yes), the process proceeds to step S20. If the button is not operated for 3 seconds (S19: No), the process returns to step S12.

  In step S20, the CPU 153 detects an input signal when the crown 250 is operated for 3 seconds, and drives the drive mechanism 140 (see FIG. 4) to display the internal time.

As described above, according to the electronic timepiece 200 according to this modification, the following effects can be obtained.
The crown 250 is provided with a button operation for performing an input operation by pushing the crown 250. An arbitrary time zone to be manually set is pointed and selected by the pointer 21 in accordance with the button operation of the crown 250 from the time zone shown in the time zone display 46. Therefore, it is possible to provide the electronic timepiece 200 capable of manually setting the time zone with a simple and easy-to-understand input operation.

  8 ... GPS satellites, 10,200 ... electronic clock, 11 ... dial, 15 ... calendar display, 21,22,23,71,81,91 ... pointer, 24 ... time display, 25 ... pointer shaft, 30 ... exterior Case, 31 ... Case, 32 ... Bezel, 33 ... Cover glass, 34 ... Back cover, 35 ... City display, 40 ... Dial ring, 45 ... Time difference display, 46 ... Time zone display, 50, 250 ... Crown, 61 ... A Button, 62 ... B button, 63 ... C button, 64 ... D button, 70 ... first small clock, 72 ... integral minute display, 80 ... second small clock, 82 ... satellite capture number display, 83 ... reception result display, 84 ... Time second display, 90 ... Third small clock, 92 ... Integration time display, 93 ... Summer time display, 94 ... Charge amount display, 95 ... Reception prohibition display, 96 ... Reception mode display, 110 ... Antenna body, 120 ... Circuit substrate, DESCRIPTION OF SYMBOLS 22 ... Reception part, 125 ... Ground plane, 130 ... Secondary battery, 135 ... Solar panel, 140 ... Drive mechanism, 150 ... Control part, 153 ... CPU, 154 ... RAM, 155 ... ROM, 157 ... Input device, 159 ... Data bus.

Claims (5)

Crown,
Time zone display,
A function that automatically sets the time zone of the current location based on the location information of the current location calculated from the satellite signal,
An arbitrary time zone selected from the time zone display is manually set, and
2. The electronic timepiece according to claim 1, wherein the arbitrary time zone is selected by operating the crown. The crown has a plurality of operation positions,
The electronic timepiece according to claim 1, wherein the arbitrary time zone is selected at the operation position where the crown is drawn one step. The crown has a plurality of operation positions,
The electronic timepiece according to claim 1, wherein the arbitrary time zone is selected at the operation position where the crown is drawn in two steps. The crown has a rotation operation,
The electronic timepiece according to any one of claims 1 to 3, wherein the arbitrary time zone is selected by the rotation operation of the crown. The crown has a button operation,
The electronic timepiece according to claim 1, wherein the arbitrary time zone is selected by the button operation of the crown.

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