JPS54115098A - Integrated circuit - Google Patents
Integrated circuitInfo
- Publication number
- JPS54115098A JPS54115098A JP2291078A JP2291078A JPS54115098A JP S54115098 A JPS54115098 A JP S54115098A JP 2291078 A JP2291078 A JP 2291078A JP 2291078 A JP2291078 A JP 2291078A JP S54115098 A JPS54115098 A JP S54115098A
- Authority
- JP
- Japan
- Prior art keywords
- section
- memory
- waveform
- data
- frequency
- 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
- Alarm Systems (AREA)
Abstract
PURPOSE: To enable to develop the alarm tone having various variations, by forming the integrated circuit with the reference signal oscillation section, memory section, frequency demultiplier, waveform control section and operation control section.
CONSTITUTION: The integrated circuit consists of the oscillation section 1 generating reference signal, memory 2 storing the frequency dividing ratio data and the waveform data, frequency demultiplication section 3 demultiplying the signal from the oscillation section 1 based on the frequency demultiplication data from the memory section 2, waveform control section 4 controlling the waveform of the output signal of the frequency demultiplication section 3 based on the waveform data from the memory 2, and operation control section 7 controlling the start or stop of the data selection and operation of the memory 2 according to the signal from the detection section detecting the condition of the objective of detection. Further, the memory 2 can simply be replaced and various memory sections can be prepared, allowing to produce various alarm tones and to obtain wider applications.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2291078A JPS54115098A (en) | 1978-02-28 | 1978-02-28 | Integrated circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2291078A JPS54115098A (en) | 1978-02-28 | 1978-02-28 | Integrated circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54115098A true JPS54115098A (en) | 1979-09-07 |
Family
ID=12095785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2291078A Pending JPS54115098A (en) | 1978-02-28 | 1978-02-28 | Integrated circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54115098A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60120497U (en) * | 1984-01-24 | 1985-08-14 | 天野商事株式会社 | Automatic fire siren sounding device |
-
1978
- 1978-02-28 JP JP2291078A patent/JPS54115098A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60120497U (en) * | 1984-01-24 | 1985-08-14 | 天野商事株式会社 | Automatic fire siren sounding device |
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