JPS63183730U - - Google Patents
Info
- Publication number
- JPS63183730U JPS63183730U JP7566587U JP7566587U JPS63183730U JP S63183730 U JPS63183730 U JP S63183730U JP 7566587 U JP7566587 U JP 7566587U JP 7566587 U JP7566587 U JP 7566587U JP S63183730 U JPS63183730 U JP S63183730U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- analog adder
- output
- difference
- target frequency
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Noise Elimination (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7566587U JPS63183730U (hr) | 1987-05-19 | 1987-05-19 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7566587U JPS63183730U (hr) | 1987-05-19 | 1987-05-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63183730U true JPS63183730U (hr) | 1988-11-25 |
Family
ID=30922023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7566587U Pending JPS63183730U (hr) | 1987-05-19 | 1987-05-19 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63183730U (hr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0370241A (ja) * | 1989-08-09 | 1991-03-26 | Toa Corp | 電話機における終話検出装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5344109A (en) * | 1976-10-02 | 1978-04-20 | Nippon Telegr & Teleph Corp <Ntt> | Signal receiver |
-
1987
- 1987-05-19 JP JP7566587U patent/JPS63183730U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5344109A (en) * | 1976-10-02 | 1978-04-20 | Nippon Telegr & Teleph Corp <Ntt> | Signal receiver |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0370241A (ja) * | 1989-08-09 | 1991-03-26 | Toa Corp | 電話機における終話検出装置 |