JPS5536766A - Frequency analysis method - Google Patents
Frequency analysis methodInfo
- Publication number
- JPS5536766A JPS5536766A JP10997378A JP10997378A JPS5536766A JP S5536766 A JPS5536766 A JP S5536766A JP 10997378 A JP10997378 A JP 10997378A JP 10997378 A JP10997378 A JP 10997378A JP S5536766 A JPS5536766 A JP S5536766A
- Authority
- JP
- Japan
- Prior art keywords
- digital
- analog
- filter
- memory
- analog converter
- 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
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE: To reduce the number of elements, the response speed of a circuit and power consumed, by changing analog input signals passing through an anti-areasing filter into digital shapes, by writing the singals in a memory and by using a filter.
CONSTITUTION: Analog input signals passing through an anti-areasing filter 2 are turned into digital forms by means of a digital-analog converter 3 at speed that satisfies the theorem of sampling, and written in a memory 4. The signals are simultaneously let pass through a digital-analog converter 5, and input to a 1/N octave filter 7 through an analog multiplier 6. A memory control 8 controls the analog multiplier 6 through the memory 4, a window 9 and a digital-analog converter 10.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10997378A JPS5536766A (en) | 1978-09-07 | 1978-09-07 | Frequency analysis method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10997378A JPS5536766A (en) | 1978-09-07 | 1978-09-07 | Frequency analysis method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5536766A true JPS5536766A (en) | 1980-03-14 |
Family
ID=14523838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10997378A Pending JPS5536766A (en) | 1978-09-07 | 1978-09-07 | Frequency analysis method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5536766A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60112595A (en) * | 1983-11-18 | 1985-06-19 | 住友金属工業株式会社 | Leg member of jack-up-rig and manufacture thereof |
JP2011259323A (en) * | 2010-06-10 | 2011-12-22 | Panasonic Electric Works Co Ltd | Method of controlling output using plurality of pwm signals |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52102073A (en) * | 1976-02-20 | 1977-08-26 | Nec Corp | Multi-input channel spectrum analysis apparatus |
JPS5371876A (en) * | 1976-12-08 | 1978-06-26 | Matsushita Electric Ind Co Ltd | Frequency spectrum analyzer |
-
1978
- 1978-09-07 JP JP10997378A patent/JPS5536766A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52102073A (en) * | 1976-02-20 | 1977-08-26 | Nec Corp | Multi-input channel spectrum analysis apparatus |
JPS5371876A (en) * | 1976-12-08 | 1978-06-26 | Matsushita Electric Ind Co Ltd | Frequency spectrum analyzer |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60112595A (en) * | 1983-11-18 | 1985-06-19 | 住友金属工業株式会社 | Leg member of jack-up-rig and manufacture thereof |
JP2011259323A (en) * | 2010-06-10 | 2011-12-22 | Panasonic Electric Works Co Ltd | Method of controlling output using plurality of pwm signals |
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