JPS5524659A - Inspecting circuit for electronic watch - Google Patents
Inspecting circuit for electronic watchInfo
- Publication number
- JPS5524659A JPS5524659A JP9790778A JP9790778A JPS5524659A JP S5524659 A JPS5524659 A JP S5524659A JP 9790778 A JP9790778 A JP 9790778A JP 9790778 A JP9790778 A JP 9790778A JP S5524659 A JPS5524659 A JP S5524659A
- Authority
- JP
- Japan
- Prior art keywords
- frequency dividing
- circuit
- electronic watch
- pulse motor
- fast forward
- 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.)
- Pending
Links
Landscapes
- Electromechanical Clocks (AREA)
Abstract
PURPOSE: To promptly the reliably accomplish the function tests of an electronic watch without any use of an external signal source by switching gates to vary the connection of the frequency dividing stages of frequency dividing circuits thereby to control the frequency dividing ratio.
CONSTITUTION: If a high level signal is impressed upon a test terminal 7 thereby to effect the test condition, the gates of a switching circuit 8 are switched so that the final stage FF F4 of a frequency dividing circuit 3 has its connection from the previous stage FF F3 to the FF F1 two stages before. As a result, the frequency dividing ratio of the circuit 8 is varied so that the frequency dividing output frequency becomes four times to fast forward a pulse motor 6. Thus, without any use of an external signal source and without temporarily taking out the standard signal generating circuit connected with a crystal oscillator 1, and function tests of the watch can be performed promptly and reliably by the fast forward of the pulse motor 6 without increasing the power consumption.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9790778A JPS5524659A (en) | 1978-08-11 | 1978-08-11 | Inspecting circuit for electronic watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9790778A JPS5524659A (en) | 1978-08-11 | 1978-08-11 | Inspecting circuit for electronic watch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5524659A true JPS5524659A (en) | 1980-02-21 |
Family
ID=14204780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9790778A Pending JPS5524659A (en) | 1978-08-11 | 1978-08-11 | Inspecting circuit for electronic watch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5524659A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5733381A (en) * | 1980-08-07 | 1982-02-23 | Nec Corp | Integrated circuit |
-
1978
- 1978-08-11 JP JP9790778A patent/JPS5524659A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5733381A (en) * | 1980-08-07 | 1982-02-23 | Nec Corp | Integrated circuit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5334438A (en) | Semiconductor circuit using insulating gate type field effect transistor | |
JPS5345939A (en) | Ram circuit | |
JPS5696532A (en) | Frequency divider | |
JPS52119020A (en) | Signal processing unit | |
JPS5524659A (en) | Inspecting circuit for electronic watch | |
JPS5552613A (en) | Sound control circuit | |
JPS5231630A (en) | Test ethod of digital equipment | |
JPS54150955A (en) | Voltage converter circuit | |
JPS55121511A (en) | Variation system for output voltage of power unit | |
JPS5212868A (en) | Automatic synchronizing signal generating circuit | |
JPS53103338A (en) | Large-scale integrated circuit | |
JPS5279742A (en) | Electronic circuit | |
JPS51140513A (en) | Color burst signal extracting circuit | |
JPS5323291A (en) | Voltage converter circuit | |
JPS53120288A (en) | Constant voltage semiconductor device | |
JPS5373047A (en) | Generation circuit for timing signal | |
JPS5524658A (en) | Inspecting circuit for electronic watch | |
JPS52116023A (en) | Auto clear circuit | |
JPS5435720A (en) | Sound source circuit | |
JPS55130535A (en) | Exposure lamp control circuit of copying apparatus | |
JPS51112153A (en) | Amplifier circuit | |
JPS54144878A (en) | Aging method for semiconductor integrated circuit | |
JPS52149434A (en) | Auto clear circuit | |
JPS5258348A (en) | Sampling circuit | |
JPS54111863A (en) | Electronic watch |