JPS55114033A - Range conversion system - Google Patents
Range conversion systemInfo
- Publication number
- JPS55114033A JPS55114033A JP1963979A JP1963979A JPS55114033A JP S55114033 A JPS55114033 A JP S55114033A JP 1963979 A JP1963979 A JP 1963979A JP 1963979 A JP1963979 A JP 1963979A JP S55114033 A JPS55114033 A JP S55114033A
- Authority
- JP
- Japan
- Prior art keywords
- level
- output
- register
- range
- gain circuit
- 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 quicken the response of a range conversion system and also to simplify circuit constitution by converting an input level within a broad variation range into that within a fixed range and also by using the output of a register as an index signal indicating the absolute value of the converted level.
CONSTITUTION: The output level of programmable variable gain circuit VGA is compared with reference voltage Er and this output level, when less than the reference voltage, is registered in register SR. Then, the gain of programmable gain circuit VGA is controlled by the output of the register to obtain the level variation range of an input to programmable gain circuit VGA from the output of programmable variable gain circuit VGA as a level within a fixed range, and the output of register SR is used as an index signal showing the absolute value of the level within the above-mentioned fixed range.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1963979A JPS55114033A (en) | 1979-02-23 | 1979-02-23 | Range conversion system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1963979A JPS55114033A (en) | 1979-02-23 | 1979-02-23 | Range conversion system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55114033A true JPS55114033A (en) | 1980-09-03 |
Family
ID=12004782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1963979A Pending JPS55114033A (en) | 1979-02-23 | 1979-02-23 | Range conversion system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55114033A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6681437B1 (en) | 1999-04-30 | 2004-01-27 | Ntt Advanced Technology Corporation | Cleaning tool for optical fiber connectors |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5034772A (en) * | 1973-08-01 | 1975-04-03 | ||
JPS5045506A (en) * | 1973-08-27 | 1975-04-23 |
-
1979
- 1979-02-23 JP JP1963979A patent/JPS55114033A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5034772A (en) * | 1973-08-01 | 1975-04-03 | ||
JPS5045506A (en) * | 1973-08-27 | 1975-04-23 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6681437B1 (en) | 1999-04-30 | 2004-01-27 | Ntt Advanced Technology Corporation | Cleaning tool for optical fiber connectors |
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