Electronic timepiece and method of controlling electronic timepiece

An electronic watch and reception control technology, applied in the field of electronic watches, can solve the problems of reduced probability of successful reception and reduced number of times of automatic reception processing, etc., to achieve the effect of increasing the probability of successful reception, increasing the probability of successful reception, and increasing the number of times of receiving and processing

Active Publication Date: 2014-03-26
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, especially in seasons such as winter when long-sleeved clothes or overcoats are worn, the automatic receiving process may not be performed for several days, thereby reducing the number of automatic receiving processes and reducing the probability of successful reception.

Method used

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  • Electronic timepiece and method of controlling electronic timepiece
  • Electronic timepiece and method of controlling electronic timepiece
  • Electronic timepiece and method of controlling electronic timepiece

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0067] figure 1 It is a front view of the GPS wristwatch as the electronic timepiece 1 according to the first embodiment of the present invention, figure 2 It is a schematic cross-sectional view of the electronic watch 1.

[0068] Such as figure 1 As shown, the electronic watch 1 is configured to receive satellite signals from at least one GPS satellite 100 among a plurality of GPS satellites 100 rotating in a predetermined orbit over the earth, obtain satellite time information, and receive at least three of the GPS satellites. 100 satellite signals and obtain position information. In addition, the GPS satellite 100 is only one example of the position information satellite of the present invention, and there are a plurality of satellites above the earth. Currently, about 30 GPS satellites 100 are rotating.

[0069] digital watch

[0070] Such as figure 1 It can be seen that the electronic watch 1 is a wrist watch worn on the user's wrist, and it has a text panel 11 and a pointer ...

no. 2 approach

[0213] Next, a second embodiment of the present invention will be described based on the drawings.

[0214] In addition, since the structure of the electronic timepiece 1 of this embodiment is the same as that of the above-mentioned first embodiment, its detailed description is omitted or simplified.

[0215] Figure 8 It is a flowchart showing the satellite signal reception processing of the control device 40 in the second embodiment.

[0216] Such as Figure 8 As shown, the control device 40 performs the processing of SB1 to SB11. Here, the processes of SB1 to SB9 and SB10 to SB12 are the same processes as SA1 to SA9 and SA11 to SA13 in the first embodiment.

[0217] On the other hand, in the first embodiment described above, when it is determined in SA8 that the reception is successful, SA10 performs recording processing of the timing reception time, and then returns to SA5 to continue processing.

[0218] In contrast, in the second embodiment, when the control device 40 determines ...

no. 3 approach

[0235] Next, a third embodiment of the present invention will be described based on the drawings. In addition, since the structure of the electronic timepiece 1 of this embodiment is the same as that of the above-mentioned first embodiment, a detailed description thereof is omitted.

[0236] Picture 9 It is a flowchart showing the satellite signal reception processing of the control device 40 in the third embodiment.

[0237] This embodiment is different from the above-mentioned first embodiment in the following points:

[0238] (I) The order of automatic reception processing is defined by performing timing reception processing after outdoor reception processing.

[0239] In addition, the processes of SC1 and SC3 to SC11 of the control device 40 are the same processes as those of SA1 and SA4 to SA12 in the first embodiment.

[0240] Such as Picture 9 As shown, the control device 40 determines whether H is "1" (SC2) after the variable initialization process (SC1). Here, H displays "0...

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Abstract

The present invention provides an electronic timepiece and a method of controlling the electronic timepiece. The electronic timepiece has a GPS receiver, an outdoor detection device, a timekeeping device, a control device, and a storage device. The control device has an automatic reception control unit that starts reception control when the time kept by the timekeeping device reaches the reception control start time stored in the storage device, and stops reception control until the next reception control start time when a stop reception control condition is met; and a time correction unit that corrects the time kept by the timekeeping device based on time information contained in the satellite signal when satellite signal reception is successful. The automatic reception control unit includes an outdoor reception control unit that executes an outdoor reception process when the outdoor detection device detects outdoor conditions, and a scheduled reception control unit that executes a scheduled reception process when the time kept by the timekeeping device goes to the scheduled reception time.

Description

Technical field [0001] The present invention relates to an electronic watch that receives satellite signals transmitted from a position information satellite such as a GPS satellite and performs time correction, and a control method of the electronic watch. Background technique [0002] An electronic watch that receives satellite signals transmitted from GPS (Global Positioning System) satellites and performs positioning and time correction is known (for example, Patent Document 1). [0003] As such an electronic watch, for example, a case in which the electronic watch is moved into an environment where satellite signals cannot be received, such as indoors and underground malls, when it is assumed to move with the user, such as a watch. [0004] If receiving processing is performed in such an environment where satellite signals cannot be received, it will lead to waste of electricity. In particular, in battery-driven electronic watches such as wristwatches, in order to ensure the du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04R20/04G04R40/06
CPCG04C10/02G04R20/04
Inventor 马场教充
Owner SEIKO EPSON CORP
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