JPS6292495U - - Google Patents
Info
- Publication number
- JPS6292495U JPS6292495U JP1985184098U JP18409885U JPS6292495U JP S6292495 U JPS6292495 U JP S6292495U JP 1985184098 U JP1985184098 U JP 1985184098U JP 18409885 U JP18409885 U JP 18409885U JP S6292495 U JPS6292495 U JP S6292495U
- Authority
- JP
- Japan
- Prior art keywords
- counter
- switch
- minute
- hour
- selects
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Electric Clocks (AREA)
Description
第１図は本考案の一実施例に係るデジタル時計
の回路構成を示す図、第２図はタイムチヤートで
ある。
２……発振器、４……分周回路、６……秒カウ
ンタ、８……分カウンタ、１０……時カウンタ、
１６……選択回路、３０，３２……デコーダ・ド
ライバ、３６……表示部、４４……秒スイツチ、
４６……分スイツチ、４８……時スイツチ、５０
……ロツクスイツチ、５２……折換回路、６２，
６４，６６……アンドゲート。
FIG. 1 is a diagram showing the circuit configuration of a digital clock according to an embodiment of the present invention, and FIG. 2 is a time chart. 2... Oscillator, 4... Frequency dividing circuit, 6... Second counter, 8... Minute counter, 10... Hour counter,
16... Selection circuit, 30, 32... Decoder/driver, 36... Display unit, 44... Second switch,
46...minute switch, 48...hour switch, 50
... Lock switch, 52 ... Switching circuit, 62,
64, 66...and gate.
Claims (1)
の秒スイツチと分スイツチと時スイツチと、 ４桁表示可能な表示部と、 前記表示部に時カウンタと分カウンタの出力と
分カウンタと秒カウンタの出力のうちいずれかを
選択して供給する選択回路と、 を有するデジタル時計において、 外部スイツチと、 通常は時カウンタおよび分カウンタの出力を選
択させ、前記外部スイツチの操作により分カウン
タおよび秒カウンタの出力を選択させ、その後の
秒スイツチの操作により再び時カウンタおよび分
カウンタの出力を選択するように前記選択回路を
制御する切換回路と、 外部スイツチの操作により秒スイツチを有効と
する第１のゲートと、 前記切換回路が時カウンタおよび分カウンタの
出力を選択するようになつたときから前記外部ス
イツチがオフ操作されるまで前記時スイツチ、分
スイツチを有効とする第２のゲートと、を有する
ことを特徴とするデジタル時計。[Claims for Utility Model Registration] An oscillator, a frequency dividing circuit, a second counter, a minute counter, an hour counter, a second switch, a minute switch, and an hour switch for correcting the count contents of each of the counters, and a four-digit display. an external switch; and a selection circuit that selects and supplies one of the outputs of an hour counter and a minute counter and outputs of a minute counter and a second counter to the display part. selects the output of the hour counter and the minute counter, the operation of the external switch selects the output of the minute counter and the second counter, and the subsequent operation of the second switch selects the output of the hour counter and the minute counter again. a switching circuit for controlling the selection circuit; a first gate for enabling the seconds switch by operation of an external switch; A digital timepiece comprising: a second gate that enables the hour switch and the minute switch until they are turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985184098U JPH037834Y2 (en) | 1985-11-29 | 1985-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985184098U JPH037834Y2 (en) | 1985-11-29 | 1985-11-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6292495U true JPS6292495U (en) | 1987-06-12 |
| JPH037834Y2 JPH037834Y2 (en) | 1991-02-26 |
Family
ID=31131447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985184098U Expired JPH037834Y2 (en) | 1985-11-29 | 1985-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH037834Y2 (en) |
-
1985
- 1985-11-29 JP JP1985184098U patent/JPH037834Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH037834Y2 (en) | 1991-02-26 |
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