JPS622557Y2 - - Google Patents
Info
- Publication number
- JPS622557Y2 JPS622557Y2 JP1985102100U JP10210085U JPS622557Y2 JP S622557 Y2 JPS622557 Y2 JP S622557Y2 JP 1985102100 U JP1985102100 U JP 1985102100U JP 10210085 U JP10210085 U JP 10210085U JP S622557 Y2 JPS622557 Y2 JP S622557Y2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- temperature correction
- temperature
- correction data
- time reference
- 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.)
- Expired
Links
- 238000012937 correction Methods 0.000 claims description 37
- 239000013078 crystal Substances 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- RRLHMJHRFMHVNM-BQVXCWBNSA-N [(2s,3r,6r)-6-[5-[5-hydroxy-3-(4-hydroxyphenyl)-4-oxochromen-7-yl]oxypentoxy]-2-methyl-3,6-dihydro-2h-pyran-3-yl] acetate Chemical compound C1=C[C@@H](OC(C)=O)[C@H](C)O[C@H]1OCCCCCOC1=CC(O)=C2C(=O)C(C=3C=CC(O)=CC=3)=COC2=C1 RRLHMJHRFMHVNM-BQVXCWBNSA-N 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
Landscapes
- Electric Clocks (AREA)
Description
【考案の詳細な説明】
本考案は長期間にわたり高精度を保つ計時装置
に関するものである。[Detailed Description of the Invention] The present invention relates to a timekeeping device that maintains high accuracy over a long period of time.
一般に高精度の計時装置の時間基準信号発生源
としては水晶発振器が用いられているが、この水
晶発振器も周囲の温度の変化によりその発振周波
数が変化することが知られている。従つて電子時
計を高精度に保つためには、温度変化により水晶
発振器の発振周波数又はその分周出力周波数の変
化を補償する必要がある。従来は水晶振動子の周
波数対温度特性を相殺するような容量温度特性を
有する感温容量素子等を水晶発振回路に組み込む
ことによつて補償し、その出力を分周して計時用
の基準時間信号を得ていた。しかしこの場合には
水晶振動子の温度周波数特性と温度補償素子の特
性が全く逆の対応を示すものでなければならない
が、実際には水晶振動子の特性曲線に追従するよ
うに補償素子を組み合せることは困難である。
又、補償素子は経年変化の大きなものが多く、さ
らに水晶振動子自身も経年変化をもつので、補償
安定性において劣り調整も容易でないという欠点
を有していた。 Generally, a crystal oscillator is used as a time reference signal generation source in a high-precision timekeeping device, but it is known that the oscillation frequency of this crystal oscillator also changes due to changes in ambient temperature. Therefore, in order to maintain high accuracy of an electronic timepiece, it is necessary to compensate for changes in the oscillation frequency of the crystal oscillator or its divided output frequency due to temperature changes. Conventionally, compensation has been achieved by incorporating a temperature-sensitive capacitive element, etc., which has a capacitance-temperature characteristic that cancels out the frequency-temperature characteristic of the crystal resonator, into the crystal oscillator circuit, and divides its output to obtain a reference time for timekeeping. I had a signal. However, in this case, the temperature-frequency characteristics of the crystal resonator and the characteristics of the temperature compensation element must show completely opposite correspondences, but in reality, the compensation elements are combined so that they follow the characteristic curve of the crystal resonator. It is difficult to
In addition, many of the compensation elements undergo large changes over time, and furthermore, the crystal resonator itself also changes over time, resulting in poor compensation stability and difficulty in adjustment.
また温度周波数特性の異なる２個の水晶発振器
を持ち、一方を時間基準信号発生用、又他の一方
を温度検出用として用い、分周の途中で温度補正
をしてゆく方法が本願出願以前に本願出願と同一
の出願人によつて出願された特願昭51−81357号
に記されている。しかしながらこの方法も水晶振
動子の組み合せ、経年変化、調整など困難な点が
多く欠点を持つていた。 Furthermore, prior to the filing of this application, there was a method of having two crystal oscillators with different temperature-frequency characteristics, using one for generating a time reference signal and the other for temperature detection, and performing temperature correction during frequency division. This is described in Japanese Patent Application No. 51-81357 filed by the same applicant as the present application. However, this method also had many drawbacks, such as difficulty in combining crystal oscillators, aging, and adjustment.
本考案の目的はこれらの従来の欠点を除去し、
周囲に温度変化があつても長期間一定に安定し、
また水晶振動子の組み合せの自由度も大きく、製
造及び修理の際にも歩度調整の簡単な計時装置を
提供することである。 The purpose of this invention is to eliminate these conventional drawbacks and
It remains stable for a long period of time even if there are temperature changes in the surrounding area.
Further, it is an object of the present invention to provide a timekeeping device which has a large degree of freedom in combining crystal oscillators and whose rate can be easily adjusted during manufacture and repair.
以下、図面に基づいて本考案の実施例につき説
明する。 Embodiments of the present invention will be described below based on the drawings.
１はＣ−MOSによる低消費電力のCPU演算処
理部で内部に複数のレジスタ、デコーダなどを有
する。２は時間基準用水晶発振器であり、発振周
波数をここでは例えば1000000Hz（＝1MHz）と
し、演算処理により10Hzをつくることで、正確な
0.1秒信号を作つている。３は温度補正用水晶発
振器で、前記時間基準用水晶発振器２とは温度周
波数特性が異なる。前記演算処理部１は前記時間
基準用水晶発振器２から時間基準信号を受け、ま
た前記温度補正用水晶発振器３より温度補正用信
号を受け、前記時間基準信号との差をとり温度検
出信号とする。次に前記演算処理部１は前記検出
信号により、あらかじめ前記PRM６に蓄えられ
ていた温度補正用データを呼び出す。前記PROM
６には製造の時点で水晶振動子の温度周波数特性
に対応した周波数の補正データを記憶させてお
く。 Reference numeral 1 denotes a low power consumption CPU arithmetic processing unit using C-MOS, which internally includes a plurality of registers, decoders, etc. 2 is a crystal oscillator for time reference, and the oscillation frequency is set to 1000000Hz (=1MHz) here, and by creating 10Hz through arithmetic processing, accurate
Creating a 0.1 second signal. Reference numeral 3 denotes a temperature correction crystal oscillator, which has different temperature frequency characteristics from the time reference crystal oscillator 2. The arithmetic processing unit 1 receives a time reference signal from the time reference crystal oscillator 2, and also receives a temperature correction signal from the temperature correction crystal oscillator 3, and calculates the difference from the time reference signal and uses it as a temperature detection signal. . Next, the arithmetic processing section 1 uses the detection signal to call up temperature correction data stored in the PRM 6 in advance. Said PROM
6 stores frequency correction data corresponding to the temperature-frequency characteristics of the crystal resonator at the time of manufacture.
次に前記演算処理部１は前記温度補正用データ
により、前記時間基準信号を温度補正演算処理し
て温度変化による影響をなくしたうえで演算処理
により0.1秒間隔で１づつ０から９まで増える0.1
秒単位のデータをつくりレジスタにストアすると
同時に表示駆動手段７ａに送り液晶によるマトリ
ツクス表示装置８に表示する。前記0.1秒単位の
データが９になると0.1秒後には０にリセツトさ
れ秒信号としての桁上げが１つ行なわれる。前記
秒信号のデータは前記0.1秒単位のデータが前記
演算処理部１によりつくられた次のタイミングで
演算処理され、前記0.1秒単位のデータによる桁
上げの秒信号によつて０〜59まで１つづつカウン
トされる。前記秒信号のデータが59になると１秒
後には０にリセツトされ、分信号としての桁上げ
が１つ行なわれる。以下同様の方法により秒デー
タ、分データ、時データ、日データ、曜データ、
月データ、年データがつくられ前記表示装置８に
表示されるが無用の繁雑さをさけるために説明は
省く。 Next, the arithmetic processing unit 1 performs temperature correction arithmetic processing on the time reference signal using the temperature correction data to eliminate the influence of temperature changes, and increases the number from 0 to 9 by 1 at 0.1 second intervals through arithmetic processing.
Second-by-second data is created and stored in a register, and simultaneously sent to the display driving means 7a and displayed on the liquid crystal matrix display device 8. When the 0.1 second unit data reaches 9, it is reset to 0 after 0.1 seconds and one carry is performed as a second signal. The data of the second signal is processed at the next timing after the 0.1 second unit data is created by the arithmetic processing unit 1, and is converted from 0 to 59 by the second signal of carry based on the 0.1 second unit data. It is counted one by one. When the data of the second signal reaches 59, it is reset to 0 one second later, and one carry is performed as a minute signal. In the same manner, second data, minute data, hour data, day data, day of the week data, etc.
Month data and year data are created and displayed on the display device 8, but their explanation will be omitted to avoid unnecessary complexity.
以上のようにして表示装置８に現在時間をイン
ターフエイス７を通して表示することができる。
尚、この際、水晶振動子にも経年変化があるの
で、操作ボタン９により歩度調整のための信号デ
ータをインターフエイス７ｂを通してRAM５に
メモリし、前記操作ボタンの操作で温度補正用デ
ータを前記PROM６のデータから前記RAM５の
データに切りかえることにより適宜歩度調整を簡
単に行なうことができる。また製造の時点で適切
な経年変化修正用データをROM４にメモリして
おき前記ROM５に記憶されたデータに従い定期
的に、例えば毎年１回前記経年変化修正用データ
により前記温度補正用データを前記演算処理部１
において自動修正することにで経年変化を最小に
することができる。つまり、これらの補正により
計時装置の精度をいつでも最高に保つことができ
る。 As described above, the current time can be displayed on the display device 8 through the interface 7.
At this time, since the crystal oscillator also changes over time, the signal data for rate adjustment is stored in the RAM 5 through the interface 7b using the operating button 9, and the data for temperature correction is stored in the PROM 6 by operating the operating button. By switching from the data in the RAM 5 to the data in the RAM 5, the rate can be easily adjusted as appropriate. In addition, at the time of manufacturing, appropriate secular change correction data is stored in the ROM 4, and the temperature correction data is calculated according to the data stored in the ROM 5 periodically, for example once every year, using the secular change correction data. Processing part 1
It is possible to minimize changes over time by automatically correcting the changes. In other words, by making these corrections, the accuracy of the timekeeping device can be maintained at its highest level at all times.
また、以上のように水晶振動子の温度、時間に
対する周波数特性に応じた補正データを記憶部に
メモリする構成にしたため、製造時、修理時に水
晶振動子の周波数特性に応じた補正データを記憶
部にメモリするだけで簡単に高精度な計時装置が
得られることになる。 In addition, since the configuration is such that the correction data according to the frequency characteristics of the crystal resonator with respect to temperature and time is stored in the storage section, the correction data according to the frequency characteristics of the crystal resonator can be stored in the storage section during manufacturing and repair. A highly accurate timekeeping device can be easily obtained by simply storing the memory in the memory.
尚、以上の説明から、演算処理部１が他の構成
要件との間に有する機能は以下のものとなる。 From the above description, the functions that the arithmetic processing unit 1 has in conjunction with other constituent elements are as follows.
時間基準用水晶発振器より時間基準信号を、
温度補正用水晶発振器より温度補正用信号を受
けとる。 The time reference signal is generated from the time reference crystal oscillator.
Receives a temperature correction signal from a temperature correction crystal oscillator.
前記時間基準信号と前記温度補正用信号との
差をとり温度検出信号を得る。 A temperature detection signal is obtained by taking the difference between the time reference signal and the temperature correction signal.
前記温度検出信号により読み出された記憶部
からの温度補正用データ、経年変化修正用デー
タを受けとる。 The temperature correction data and secular change correction data read from the storage unit based on the temperature detection signal are received.
前記時間基準信号を前記温度補正用データに
より補正処理し、計数する。 The time reference signal is corrected using the temperature correction data and counted.
前記温度補正用データを前記経年変化修正用
データにより定期的に修正する。 The temperature correction data is periodically corrected using the secular change correction data.
上述の如く、本考案は、水晶振動子の温度、時
間に対する周波数特性を考慮し、温度補正用デー
タを記憶した第１の記憶部及び経年変化修正用デ
ータを記憶した第２の記憶部を設け、経年変化に
応じ、前記経年変化修正用データにより定期的に
修正された前記温度補正用データで時間基準信号
を補正処理することで長期間にわたり歩度調整操
作を不要とした高精度な計時装置を実現でき、置
時計から腕時計その他に非常に有用な計時装置を
得ることができる。 As described above, the present invention takes into account the frequency characteristics of the crystal resonator with respect to temperature and time, and provides a first storage section that stores temperature correction data and a second storage section that stores secular change correction data. , a highly accurate timekeeping device that eliminates the need for rate adjustment operations over a long period of time by correcting the time reference signal using the temperature correction data that is periodically corrected using the secular change correction data in accordance with aging. This makes it possible to obtain very useful timekeeping devices such as wristwatches from table clocks.
第１図は本考案による実施例のブロツク図。 FIG. 1 is a block diagram of an embodiment of the present invention.
Claims (1)
器、温度補正用信号を出力する温度補正用水晶発
振器、温度補正用データを予め記憶した第１の記
憶部、経年変化修正用データを記憶した第２の記
憶部、前記時間基準信号及び前記温度補正用信号
との差により温度検出信号を得、前記温度検出信
号により予め前記第１の記憶部に記憶された前記
温度補正用データを呼び出し、前記時間基準信号
を補正処理する演算処理部、前記演算処理部で補
正処理された前記時間基準信号に基づいて時刻表
示する表示手段を備え、前記演算処理部は前記第
１の記憶部の前記温度補正用データを前記第２の
記憶部の前記経年変化修正用データにより定期的
に修正することを特徴とする計数装置。 A time reference crystal oscillator that outputs a time reference signal, a temperature correction crystal oscillator that outputs a temperature correction signal, a first storage section that stores temperature correction data in advance, and a second storage section that stores secular change correction data. a storage unit, obtains a temperature detection signal based on the difference between the time reference signal and the temperature correction signal, reads the temperature correction data previously stored in the first storage unit based on the temperature detection signal, and calculates the temperature correction data based on the difference between the time reference signal and the temperature correction signal; The calculation processing unit includes a calculation processing unit that corrects a signal, and a display unit that displays the time based on the time reference signal corrected by the calculation processing unit, and the calculation processing unit reads the temperature correction data in the first storage unit. is periodically corrected using the secular change correction data stored in the second storage section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985102100U JPS622557Y2 (en) | 1985-07-04 | 1985-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985102100U JPS622557Y2 (en) | 1985-07-04 | 1985-07-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6163192U JPS6163192U (en) | 1986-04-28 |
| JPS622557Y2 true JPS622557Y2 (en) | 1987-01-21 |
Family
ID=30661508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985102100U Expired JPS622557Y2 (en) | 1985-07-04 | 1985-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS622557Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5155660A (en) * | 1974-09-16 | 1976-05-15 | Centre Electron Horloger | |
| JPS5164353A (en) * | 1974-12-02 | 1976-06-03 | Suwa Seikosha Kk | ONDOHOSEISUISHODOKEI |
| JPS5262470A (en) * | 1975-11-18 | 1977-05-23 | Citizen Watch Co Ltd | Electronic watch with keyboard |
-
1985
- 1985-07-04 JP JP1985102100U patent/JPS622557Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5155660A (en) * | 1974-09-16 | 1976-05-15 | Centre Electron Horloger | |
| JPS5164353A (en) * | 1974-12-02 | 1976-06-03 | Suwa Seikosha Kk | ONDOHOSEISUISHODOKEI |
| JPS5262470A (en) * | 1975-11-18 | 1977-05-23 | Citizen Watch Co Ltd | Electronic watch with keyboard |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6163192U (en) | 1986-04-28 |
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