JPS55138139A - Signal collecting circuit system - Google Patents
Signal collecting circuit systemInfo
- Publication number
- JPS55138139A JPS55138139A JP4431379A JP4431379A JPS55138139A JP S55138139 A JPS55138139 A JP S55138139A JP 4431379 A JP4431379 A JP 4431379A JP 4431379 A JP4431379 A JP 4431379A JP S55138139 A JPS55138139 A JP S55138139A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- converter
- processor
- gain
- magnitude
- 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
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
PURPOSE: To reduce quantization errors by processing a digital signal obtained by A/D converting after making nealry constant the magnitude of the signal by a variable gain amplifier.
CONSTITUTION: To process by processor 4 input signal 1 varying magnitude, control command 8 needed to collect signal 1 is supplied from processor 4 to timing controller 7. Controller 7 supplies timing signal 10 to gain control signal generating circuit 6 which generates control signal 11 controlling the gain of variable gain amplifier 5 and also synchronizes with signal 10 to supply timing pulse 9 operating converter 3 to A/D converter 3. Then, the gain of amplifier 5 is controlled by control signal 11 generated by generating circuit 6 to make nearly constant the magnitude of a signal applied to converter 3, which converts it into a digital signal, and converter 3 is put into operation of effectiveness and high precision to reduce errors of the quantization of processor 4.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4431379A JPS55138139A (en) | 1979-04-13 | 1979-04-13 | Signal collecting circuit system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4431379A JPS55138139A (en) | 1979-04-13 | 1979-04-13 | Signal collecting circuit system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55138139A true JPS55138139A (en) | 1980-10-28 |
Family
ID=12687988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4431379A Pending JPS55138139A (en) | 1979-04-13 | 1979-04-13 | Signal collecting circuit system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55138139A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6193939A (en) * | 1984-10-13 | 1986-05-12 | Jeol Ltd | Nuclear magnetic resonator |
US6091301A (en) * | 1996-06-03 | 2000-07-18 | Scientific-Atlanta, Inc. | Flatness compensation of diplex filter roll-off using active amplifier peaking circuit |
-
1979
- 1979-04-13 JP JP4431379A patent/JPS55138139A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6193939A (en) * | 1984-10-13 | 1986-05-12 | Jeol Ltd | Nuclear magnetic resonator |
US6091301A (en) * | 1996-06-03 | 2000-07-18 | Scientific-Atlanta, Inc. | Flatness compensation of diplex filter roll-off using active amplifier peaking circuit |
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