JPH0218787B2 - - Google Patents
Info
- Publication number
- JPH0218787B2 JPH0218787B2 JP8616284A JP8616284A JPH0218787B2 JP H0218787 B2 JPH0218787 B2 JP H0218787B2 JP 8616284 A JP8616284 A JP 8616284A JP 8616284 A JP8616284 A JP 8616284A JP H0218787 B2 JPH0218787 B2 JP H0218787B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- amplifier
- output
- variable gain
- 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
- 238000001514 detection method Methods 0.000 claims description 25
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims 2
- 230000004044 response Effects 0.000 description 18
- 238000010586 diagram Methods 0.000 description 10
- 230000005236 sound signal Effects 0.000 description 6
- 230000003321 amplification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 241000053227 Themus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
- H04M1/65—Recording arrangements for recording a message from the calling party
- H04M1/652—Means for playing back the recorded messages by remote control over a telephone line
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8616284A JPS60232757A (ja) | 1984-05-01 | 1984-05-01 | 留守番電話装置のリモ−ト信号検出回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8616284A JPS60232757A (ja) | 1984-05-01 | 1984-05-01 | 留守番電話装置のリモ−ト信号検出回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60232757A JPS60232757A (ja) | 1985-11-19 |
JPH0218787B2 true JPH0218787B2 (enrdf_load_stackoverflow) | 1990-04-26 |
Family
ID=13879047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8616284A Granted JPS60232757A (ja) | 1984-05-01 | 1984-05-01 | 留守番電話装置のリモ−ト信号検出回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60232757A (enrdf_load_stackoverflow) |
-
1984
- 1984-05-01 JP JP8616284A patent/JPS60232757A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60232757A (ja) | 1985-11-19 |
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