JPH0187452U - - Google Patents
Info
- Publication number
- JPH0187452U JPH0187452U JP18327987U JP18327987U JPH0187452U JP H0187452 U JPH0187452 U JP H0187452U JP 18327987 U JP18327987 U JP 18327987U JP 18327987 U JP18327987 U JP 18327987U JP H0187452 U JPH0187452 U JP H0187452U
- Authority
- JP
- Japan
- Prior art keywords
- memory
- battery power
- power source
- contents
- circuit
- 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.)
- Granted
Links
- 230000015654 memory Effects 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Landscapes
- Power Sources (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Calculators And Similar Devices (AREA)
- Electric Clocks (AREA)
Description
第１図は本考案の一実施例を適用したデータバ
ンク機能付き電子腕時計の全体回路図、第２図は
第１図中のメモリ部１６の概略構成図、第３図は
第１図中の主回路部１５の詳細な回路図、第４図
は第３図中のＲＡＭ４３の概略構成図、第５図は
第１図中の電圧制御部１７及びその近傍について
の詳細な回路図、第６図は電圧制御部１７の主要
動作を説明するためのタイミングチヤート、第７
図は主回路部１５による全体的な処理動作を示す
フローチヤート、第８図は第７図中のステツプＴ
１２の処理（エラー検出処理）を詳細に示すフロ
ーチヤート、第９図ａ〜ｅは第３図中の液晶表示
装置による表示例を示す図、第１０図は本考案の
一実施例を適用した上記電子腕時計の拡大断面図
、第１１図ａ及びｂは第１０図中のスイツチＳ１
のオフ状態及びオン状態における要部拡大断面図
、第１２図は従来のバツテリバツクアツプ回路の
一例を示す回路図である。
１１……電池、１２……降圧回路、１３……定
電圧回路、１４……電圧検出回路、１５……主回
路部、１６……メモリ部、１７……電圧制御部、
Ｃ１……バツクアツプ用のコンデンサ、Ｓ１……
スイツチ、Ｓ２……ＡＣスイツチ。
FIG. 1 is an overall circuit diagram of an electronic wristwatch with a data bank function to which an embodiment of the present invention is applied, FIG. 2 is a schematic configuration diagram of the memory section 16 in FIG. 1, and FIG. 4 is a detailed circuit diagram of the main circuit section 15, FIG. 4 is a schematic configuration diagram of the RAM 43 in FIG. 3, FIG. 5 is a detailed circuit diagram of the voltage control section 17 and its vicinity in FIG. 1, and FIG. The figure is a timing chart for explaining the main operations of the voltage control section 17.
The figure is a flowchart showing the overall processing operation by the main circuit section 15, and FIG.
12 is a flowchart showing details of the process (error detection process), FIGS. 9a to 9e are diagrams showing display examples on the liquid crystal display device in FIG. 3, and FIG. The enlarged sectional view of the electronic wristwatch, FIGS. 11a and 11b, shows the switch S 1 in FIG. 10.
FIG. 12 is a circuit diagram showing an example of a conventional battery backup circuit. 11... Battery, 12... Step-down circuit, 13... Constant voltage circuit, 14... Voltage detection circuit, 15... Main circuit section, 16... Memory section, 17... Voltage control section,
C 1 ... Backup capacitor, S 1 ...
Switch, S2 ...AC switch.
Claims (1)
て動作する第１及び第２のメモリと、前記電池電
源の交換に先立つて投入されるスイツチング手段
と、このスイツチング手段に投入によつて前記第
１のメモリの内容を前記第２のメモリに転送する
転送手段と、前記電池電源の交換時に前記第２の
メモリにバツクアツプ電圧を供給する補助電源手
段と、前記電池電源の交換後に前記第２のメモリ
に転送された第１のメモリの内容を前記第１のメ
モリに戻す復帰転送手段とを具備してなるメモリ
バツクアツプ装置。 a battery power source; first and second memories that operate based on the output voltage of the battery power source; switching means that is turned on prior to replacing the battery power source; transfer means for transferring the contents of the memory to the second memory; auxiliary power supply means for supplying backup voltage to the second memory when the battery power supply is replaced; 1. A memory backup device comprising: return transfer means for returning the contents of a first memory transferred to said first memory to said first memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987183279U JP2577531Y2 (en) | 1987-11-30 | 1987-11-30 | Memory backup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987183279U JP2577531Y2 (en) | 1987-11-30 | 1987-11-30 | Memory backup device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0187452U true JPH0187452U (en) | 1989-06-09 |
| JP2577531Y2 JP2577531Y2 (en) | 1998-07-30 |
Family
ID=31474708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987183279U Expired - Lifetime JP2577531Y2 (en) | 1987-11-30 | 1987-11-30 | Memory backup device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2577531Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58199494A (en) * | 1982-05-14 | 1983-11-19 | Citizen Watch Co Ltd | Small-sized electronic instrument |
| JPS6229733U (en) * | 1985-08-02 | 1987-02-23 | ||
| JPS62105525U (en) * | 1985-12-23 | 1987-07-06 |
-
1987
- 1987-11-30 JP JP1987183279U patent/JP2577531Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58199494A (en) * | 1982-05-14 | 1983-11-19 | Citizen Watch Co Ltd | Small-sized electronic instrument |
| JPS6229733U (en) * | 1985-08-02 | 1987-02-23 | ||
| JPS62105525U (en) * | 1985-12-23 | 1987-07-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2577531Y2 (en) | 1998-07-30 |
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