JPS5748663A - Average level removing system - Google Patents
Average level removing systemInfo
- Publication number
- JPS5748663A JPS5748663A JP55123986A JP12398680A JPS5748663A JP S5748663 A JPS5748663 A JP S5748663A JP 55123986 A JP55123986 A JP 55123986A JP 12398680 A JP12398680 A JP 12398680A JP S5748663 A JPS5748663 A JP S5748663A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- converter
- analog signal
- digital
- average
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06J—HYBRID COMPUTING ARRANGEMENTS
- G06J1/00—Hybrid computing arrangements
Abstract
PURPOSE:To eliminate the need for a costly high speed A/D converter of multibits and lower the cost of production by obtaining the digital value used for calculation of average values by low speed A/D conversion. CONSTITUTION:The output of a low speed A/D converter 61 inputted with an analog signal (a) is inputted to an average level operating circuit 52 consisting of plural registers and adders, and a digital average signal (b') is latched by latch circuits 63, 64. The digital average signal (f') thereof is again converted to an analog signal (f) by a low speed D/A converter 65, and the difference between the analog signal (f) and the analog signal (a) is amplified by a differential amplifier 66. This signal (g) is converted by a high speed A/D converter 67, by which a digital signal (g') for flaw detection is obtained. Thereby, inexpensive circuits are used and the production cost for the device is lowered.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55123986A JPS5748663A (en) | 1980-09-09 | 1980-09-09 | Average level removing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55123986A JPS5748663A (en) | 1980-09-09 | 1980-09-09 | Average level removing system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5748663A true JPS5748663A (en) | 1982-03-20 |
Family
ID=14874207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55123986A Pending JPS5748663A (en) | 1980-09-09 | 1980-09-09 | Average level removing system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5748663A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02233067A (en) * | 1989-03-07 | 1990-09-14 | Sony Corp | Television receiver |
-
1980
- 1980-09-09 JP JP55123986A patent/JPS5748663A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02233067A (en) * | 1989-03-07 | 1990-09-14 | Sony Corp | Television receiver |
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