JPS6239869B2 - - Google Patents
Info
- Publication number
- JPS6239869B2 JPS6239869B2 JP11317780A JP11317780A JPS6239869B2 JP S6239869 B2 JPS6239869 B2 JP S6239869B2 JP 11317780 A JP11317780 A JP 11317780A JP 11317780 A JP11317780 A JP 11317780A JP S6239869 B2 JPS6239869 B2 JP S6239869B2
- Authority
- JP
- Japan
- Prior art keywords
- input
- operational amplifier
- output
- terminal
- 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.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/738—Interface circuits for coupling substations to external telephone lines
- H04M1/76—Compensating for differences in line impedance
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Networks Using Active Elements (AREA)
- Devices For Supply Of Signal Current (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11317780A JPS5738052A (en) | 1980-08-18 | 1980-08-18 | Constant impedance circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11317780A JPS5738052A (en) | 1980-08-18 | 1980-08-18 | Constant impedance circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5738052A JPS5738052A (en) | 1982-03-02 |
| JPS6239869B2 true JPS6239869B2 (enrdf_load_stackoverflow) | 1987-08-25 |
Family
ID=14605498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11317780A Granted JPS5738052A (en) | 1980-08-18 | 1980-08-18 | Constant impedance circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5738052A (enrdf_load_stackoverflow) |
-
1980
- 1980-08-18 JP JP11317780A patent/JPS5738052A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5738052A (en) | 1982-03-02 |
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