JPS5447688A - Digital circuit - Google Patents
Digital circuitInfo
- Publication number
- JPS5447688A JPS5447688A JP11400577A JP11400577A JPS5447688A JP S5447688 A JPS5447688 A JP S5447688A JP 11400577 A JP11400577 A JP 11400577A JP 11400577 A JP11400577 A JP 11400577A JP S5447688 A JPS5447688 A JP S5447688A
- Authority
- JP
- Japan
- Prior art keywords
- data
- values
- square
- sampling
- trigonometric functions
- 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
- Measurement Of Current Or Voltage (AREA)
Abstract
PURPOSE: To obtain the effective values of functions accurately and readily by sampling the analog input signals indicated by the trigonometric functions of time and continously adding 3 data of the square of the value of every 60° of these data.
CONSTITUTION: The respective sampling instantaneous data having been sampled the sine waves of the analog input signals indicated by the trigonometric functions of the time (t) at 60° are applied to a square arithmetic circuit 17, the outputs whereof are then stored in a memory circuit 18. The squares of the data 60° before and the data of 120° before are stored in memory circuit 19, 20. The sums of the data of these memory circuits 18 thru 20 are operated by an adder 21, whereby the values 1.5 times the square of the vector absolute values of the sampled trigonometric functions are operated. Hence, the values may be made accurate and the capacity of the apparatus may be made small because the values may be obtained irrespective of the sampling initial phase angles
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11400577A JPS5447688A (en) | 1977-09-22 | 1977-09-22 | Digital circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11400577A JPS5447688A (en) | 1977-09-22 | 1977-09-22 | Digital circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5447688A true JPS5447688A (en) | 1979-04-14 |
Family
ID=14626663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11400577A Pending JPS5447688A (en) | 1977-09-22 | 1977-09-22 | Digital circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5447688A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57156565A (en) * | 1981-03-20 | 1982-09-27 | Nec Corp | Digital level detecting circuit |
JPS5910591A (en) * | 1982-07-09 | 1984-01-20 | Meiji Seika Kaisha Ltd | 1-oxadethiacephalosporin compound and antibacterial agent containing the same |
JPS6182174A (en) * | 1984-03-26 | 1986-04-25 | Otani Denki Kk | Peak detecting device |
JPS61169766A (en) * | 1985-01-23 | 1986-07-31 | Fuji Electric Co Ltd | Digital measuring system |
-
1977
- 1977-09-22 JP JP11400577A patent/JPS5447688A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57156565A (en) * | 1981-03-20 | 1982-09-27 | Nec Corp | Digital level detecting circuit |
JPS5910591A (en) * | 1982-07-09 | 1984-01-20 | Meiji Seika Kaisha Ltd | 1-oxadethiacephalosporin compound and antibacterial agent containing the same |
JPH0251432B2 (en) * | 1982-07-09 | 1990-11-07 | Meiji Seika Co | |
JPS6182174A (en) * | 1984-03-26 | 1986-04-25 | Otani Denki Kk | Peak detecting device |
JPS61169766A (en) * | 1985-01-23 | 1986-07-31 | Fuji Electric Co Ltd | Digital measuring system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5447688A (en) | Digital circuit | |
JPS5763985A (en) | Processing circuit of chroma signal | |
JPS5418767A (en) | Digital position detector | |
JPS53107353A (en) | Interpolation circuit of digital scale | |
JPS5232655A (en) | Logic low-pass filter circuit | |
JPS54156461A (en) | Demodulator for amplitude modulation wave | |
JPS5223974A (en) | Phase measuring circuit | |
JPS5373056A (en) | Analog-digital converter | |
JPS5228362A (en) | Digital multimeter | |
JPS5336279A (en) | Calculating device for amplitude value | |
JPS54134678A (en) | Effective value measuring apparatus | |
JPS5394167A (en) | Digital phase synchronous loop | |
KR830000901B1 (en) | Improved transducer signal device | |
JPS52100945A (en) | Multiplication system | |
JPS5254328A (en) | Beam index-type color television receiver | |
JPS5213757A (en) | Sine wave signal generator circuit | |
JPS5455481A (en) | Frequency analyzer | |
JPS51132875A (en) | Measuring signal averaging device | |
JPS5533204A (en) | Digital control system | |
JPS5456481A (en) | Phase detection method | |
JPS5387277A (en) | Phase difference detector | |
JPS5630656A (en) | Digital signal sn measuring apparatus | |
JPS5397760A (en) | Mixing circuit for digital signal | |
JPS52104167A (en) | Amplitude computing device | |
JPS52103654A (en) | Amplitude calculator |