WO1998044395A1 - Horloge electronique - Google Patents
Horloge electronique Download PDFInfo
- Publication number
- WO1998044395A1 WO1998044395A1 PCT/JP1998/001301 JP9801301W WO9844395A1 WO 1998044395 A1 WO1998044395 A1 WO 1998044395A1 JP 9801301 W JP9801301 W JP 9801301W WO 9844395 A1 WO9844395 A1 WO 9844395A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data
- circuit
- speed
- rom
- input port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G3/00—Producing timing pulses
- G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
Definitions
- the present invention relates to an electronic timepiece equipped with a microcomputer.
- it relates to a high-precision electronic timepiece in which the operation of a logic regulation circuit for adjusting accuracy is controlled by a microcomputer.
- the operation cycle of the logical acceleration / deceleration circuit and the number of bits of the acceleration / deceleration data input port are determined in advance, and the development proceeds.
- the minimum resolution and adjustment range of the slow / fast circuit are fixed, and if the accuracy is actually adjusted at the factory, the accuracy cannot be adjusted to the target accuracy due to variations in the adjustment accuracy at the factory and the temperature environment. There was a problem that the yield of production would be greatly affected. Furthermore, if the frequency of the crystal used in the oscillation circuit varies and exceeds the adjustment range fixed by IC, the cost may be increased by selecting the crystal.
- the present invention firstly provides an oscillation circuit, a system clock generation circuit that generates a system clock from the output of the oscillation circuit, a frequency division circuit that divides the output of the oscillation circuit, and a processing procedure such as clocking operation of a clock.
- a CPU that decodes the data programmed in the ROM and performs various arithmetic processing
- a RAM that stores various data
- an interrupt that generates an interrupt signal to the arithmetic processing means.
- Signal generation Circuit a speed data input port for taking in speed data from the outside, a logic speed circuit for varying the frequency division ratio of the frequency divider and adjusting the accuracy, and speed data for determining the speed of the logic speed circuit. And a speed data storage circuit for storing data.
- the first configuration has a slow / slow correction data input port that takes in data for correcting the slow / fast data input from the slow / fast data input port from outside.
- FIG. 1 is a functional block diagram showing an example of an electronic timepiece according to the present invention.
- FIG. 2 is a functional block diagram showing a configuration of a conventional electronic timepiece.
- FIG. 3 is a table showing the amount of acceleration / deceleration of a logical acceleration / deceleration circuit of the electronic timepiece according to the present invention.
- FIG. 4 is a diagram showing an operation flow of the electronic timepiece according to the first embodiment of the present invention.
- FIG. 5 is a diagram showing an operation flow of the electronic timepiece according to the second embodiment of the present invention.
- FIG. 6 is a diagram showing an operation flow of the third embodiment of the electronic timepiece according to the present invention.
- FIG. 1 is a functional block diagram showing one example of a typical configuration of the present invention.
- the output of the oscillation circuit 101 is input to the system clock generation circuit 102, and the CPU 105 that performs various arithmetic processings operates using the system clock.
- the output of the oscillation circuit 101 is input to the frequency divider 103, and the signal divided by the frequency divider 103 activates the interrupt signal generator 107, which interrupts the CPU 105. Generate You.
- the interrupt signal from the interrupt signal generator 107 causes the CPLM 05 to enter the interrupt operation. Then, the address of the ROM 104 is determined, and the programming data is sent to the CPU 105 via the data bus 112.
- the CPU 105 decodes the programming data and performs various arithmetic processing. Each time the CPU 105 interrupts, the logical slow / fast cycle counter assigned to RAM 106 is incremented and a predetermined value is counted. Is selected, and the logic bus is operated by the data bus 112.
- the address bus 113 selects the address of the input port.
- the data is read into the data bus 112 by the read signal from the CPU 105 and stored in the accumulator in the CPU 105.
- the data is stored in the speed data storage circuit 110 via the data bus 112.
- the input ports assigned to the speed data input port 108 and the speed correction data input port 111 may be general-purpose input ports or input / output ports as long as data can be taken in from the outside.
- FIG. 3 is a list of the amount of the difference between the acceleration and deceleration of the logical acceleration and deceleration circuit according to the present invention based on the combination of the acceleration and deceleration data.
- each bit of B0 to B5 constituting the slow / fast data storage circuit 110 has a slow / fast amount of one clock of 32 kHz, 16 kHz, 8 kHz, 4 kHz, 2 kHz, and 1 kHz.
- the equation for calculating the amount of the difference can be obtained by the following equation.
- FIG. 4 is a flowchart showing the operation when the operation cycle of the logical acceleration / deceleration circuit 109 in the electronic timepiece of the present invention is 10 seconds and 320 seconds, and the acceleration / deceleration data is 10 bits.
- the CPU 105 in response to an interrupt signal from the interrupt signal generating circuit 107, the CPU 105 enters an interrupt operation, and increments the 10-second cycle counter and the 320-second cycle counter assigned to the RAM 105 (S401). It is determined whether or not the 10-second cycle counter has reached 10, and if it has reached 10, the process branches to S403, and if it has not reached 10, the process branches to S406 (S402).
- the logical acceleration / deceleration circuit "! 09" operates (S405). If the 10-second cycle counter is less than 10, it is determined whether the 320-second cycle counter has reached 320. If the value becomes less than 320, the CPU 105 stops and enters the HALT operation if less than 320 (S406) If the 320 second period counter reaches 320, the 10-bit data Of these, 5 bits allocated to the 320-second cycle speed data are captured (S40), and the captured 5-bit data is set in B0 to B4 of the speed data storage circuit 110 (S408). accordance with the data, the theoretical regulation circuit 109 operates (S409). Above operation, theoretical regulation circuit 109 can perform theoretical regulation of 8. 44SecZday up to the minimum resolution 8mse C Zd a y.
- FIG. 5 shows that the operation cycle of the logic regulation circuit 109 in the electronic timepiece of the present invention is 10 seconds.
- FIG. 6 is a flowchart showing an operation performed in 640 seconds and when speed data is 11 bits.
- the CPU 105 enters an interrupt operation in response to an interrupt signal from the interrupt signal generation circuit 107, and increments the 10-second cycle counter and the 640-second cycle counter assigned to the RAM 105 (S501).
- 10-second period counter reaches 10. If it is 10, the process branches to S503, and if it is less than 10, the process branches to S506 (S502).
- S503 5 bits assigned to the 10-second cycle slow / fast data out of the 11 bits of the slow / fast data input port 108 are acquired (S503).
- the fetched 5-bit data is set in B0 to B4 of the speed data storage circuit 110 (S504).
- the logical acceleration / deceleration circuit 109 operates (S505). If the 10-second cycle counter is less than 10, determine whether the 640-second cycle counter has reached 640.If it reaches 640, go to S507.If it does not reach 640, stop the CPU 105 and start HALT operation. Enter (S506). When the 640 second period counter reaches 640, 6 bits allocated to the 640 second period slow / fast data out of the 11 bits of the slow / fast data input port 108 are fetched (S507). The acquired 6-bit data is set in B0 to B5 of the speed data storage circuit 110 (S508).
- the logical acceleration / deceleration circuit 109 operates (S509).
- theoretical regulation circuit 109 can perform theoretical regulation of 8. 44sec / day at the maximum from the minimum resolution 4ms e cZday.
- FIG. 6 is a flowchart showing correction processing of the speed data in the electronic timepiece of the present invention.
- the speed data read from the speed data input port 108 is written to the first operation area allocated to the RAM 106 (S601).
- the speed data read from the speed correction data input port 111 is written in the second calculation area allocated to the RAM 106 (S602).
- the data written to the second operation area is assigned to the corresponding bits of B0 to B5 by the programming data of the ROM 104, and is added or subtracted from the bits of the first operation area corresponding to the assigned bits (S603). ).
- the calculated data in the first calculation area is set in the slow / slow data storage circuit 110 (S604). Thereafter, the operation of FIG. 4 or FIG. 5 is performed.
- the acceleration / deceleration cycle and the number of acceleration / deceleration data bits can be arbitrarily determined based on the data programmed in the ROM. At the same time, it can be easily changed.
- the adjustment amount required for readjustment of accuracy in the market can be easily set again based on the information of retail stores, etc. by changing the data programmed in ROM.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/381,762 US6381702B1 (en) | 1997-03-27 | 1998-03-25 | Electronic clock |
| EP98910976A EP1014233A4 (en) | 1997-03-27 | 1998-03-25 | ELECTRONIC CLOCK |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9/76285 | 1997-03-27 | ||
| JP9076285A JP3062995B2 (ja) | 1997-03-27 | 1997-03-27 | 電子時計 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998044395A1 true WO1998044395A1 (fr) | 1998-10-08 |
Family
ID=13601050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1998/001301 Ceased WO1998044395A1 (fr) | 1997-03-27 | 1998-03-25 | Horloge electronique |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6381702B1 (ja) |
| EP (1) | EP1014233A4 (ja) |
| JP (1) | JP3062995B2 (ja) |
| CN (1) | CN1251665A (ja) |
| WO (1) | WO1998044395A1 (ja) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6616328B1 (en) * | 1999-10-26 | 2003-09-09 | Seiko Instruments Inc. | High accuracy timepiece |
| GB2358490B (en) * | 1999-12-29 | 2004-08-11 | Nokia Mobile Phones Ltd | A clock |
| JP4947841B2 (ja) | 2000-03-31 | 2012-06-06 | キヤノン株式会社 | 荷電粒子線露光装置 |
| JP2001283756A (ja) | 2000-03-31 | 2001-10-12 | Canon Inc | 電子光学系アレイ、これを用いた荷電粒子線露光装置ならびにデバイス製造方法 |
| JP4947842B2 (ja) | 2000-03-31 | 2012-06-06 | キヤノン株式会社 | 荷電粒子線露光装置 |
| JP2011169650A (ja) * | 2010-02-16 | 2011-09-01 | Seiko Instruments Inc | ステッピングモータ制御回路及びアナログ電子時計 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746191A (en) * | 1980-09-04 | 1982-03-16 | Citizen Watch Co Ltd | Variable voltage divider |
| JPS62237386A (ja) * | 1986-04-08 | 1987-10-17 | Seiko Instr & Electronics Ltd | 電子時計 |
| JPS63106595A (ja) * | 1986-10-23 | 1988-05-11 | Seiko Instr & Electronics Ltd | 電子時計 |
| JPH0442090A (ja) * | 1990-06-07 | 1992-02-12 | Seiko Instr Inc | 電子時計 |
| JPH0572359A (ja) * | 1991-09-13 | 1993-03-26 | Seiko Epson Corp | 計時回路 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4142360A (en) * | 1977-07-07 | 1979-03-06 | Kabushiki Kaisha Suwa Seikosha | Electronic timepiece |
| JPS55129789A (en) * | 1979-03-29 | 1980-10-07 | Seiko Epson Corp | Electronic watch |
| US4427302A (en) * | 1980-06-06 | 1984-01-24 | Citizen Watch Company Limited | Timekeeping signal source for an electronic timepiece |
| US5717661A (en) * | 1994-12-20 | 1998-02-10 | Poulson; T. Earl | Method and apparatus for adjusting the accuracy of electronic timepieces |
-
1997
- 1997-03-27 JP JP9076285A patent/JP3062995B2/ja not_active Expired - Fee Related
-
1998
- 1998-03-25 EP EP98910976A patent/EP1014233A4/en not_active Withdrawn
- 1998-03-25 US US09/381,762 patent/US6381702B1/en not_active Expired - Fee Related
- 1998-03-25 WO PCT/JP1998/001301 patent/WO1998044395A1/ja not_active Ceased
- 1998-03-25 CN CN98803727A patent/CN1251665A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746191A (en) * | 1980-09-04 | 1982-03-16 | Citizen Watch Co Ltd | Variable voltage divider |
| JPS62237386A (ja) * | 1986-04-08 | 1987-10-17 | Seiko Instr & Electronics Ltd | 電子時計 |
| JPS63106595A (ja) * | 1986-10-23 | 1988-05-11 | Seiko Instr & Electronics Ltd | 電子時計 |
| JPH0442090A (ja) * | 1990-06-07 | 1992-02-12 | Seiko Instr Inc | 電子時計 |
| JPH0572359A (ja) * | 1991-09-13 | 1993-03-26 | Seiko Epson Corp | 計時回路 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1014233A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3062995B2 (ja) | 2000-07-12 |
| CN1251665A (zh) | 2000-04-26 |
| EP1014233A4 (en) | 2004-03-31 |
| EP1014233A1 (en) | 2000-06-28 |
| US6381702B1 (en) | 2002-04-30 |
| JPH10268073A (ja) | 1998-10-09 |
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