JPS63227228A - モデムトレ−ニング信号検出器 - Google Patents
モデムトレ−ニング信号検出器Info
- Publication number
- JPS63227228A JPS63227228A JP62061836A JP6183687A JPS63227228A JP S63227228 A JPS63227228 A JP S63227228A JP 62061836 A JP62061836 A JP 62061836A JP 6183687 A JP6183687 A JP 6183687A JP S63227228 A JPS63227228 A JP S63227228A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- output
- frequency
- modem
- upper limit
- 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.)
- Granted
Links
Landscapes
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62061836A JPS63227228A (ja) | 1987-03-17 | 1987-03-17 | モデムトレ−ニング信号検出器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62061836A JPS63227228A (ja) | 1987-03-17 | 1987-03-17 | モデムトレ−ニング信号検出器 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63227228A true JPS63227228A (ja) | 1988-09-21 |
| JPH0526379B2 JPH0526379B2 (enrdf_load_stackoverflow) | 1993-04-15 |
Family
ID=13182575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62061836A Granted JPS63227228A (ja) | 1987-03-17 | 1987-03-17 | モデムトレ−ニング信号検出器 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63227228A (enrdf_load_stackoverflow) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49123209A (enrdf_load_stackoverflow) * | 1973-03-29 | 1974-11-26 | ||
| JPS54507A (en) * | 1977-06-03 | 1979-01-05 | Hitachi Ltd | Receiver for multi-frequency signal |
| JPS6240829A (ja) * | 1985-08-16 | 1987-02-21 | Fujitsu Ltd | モデムトレ−ニング信号検出器 |
-
1987
- 1987-03-17 JP JP62061836A patent/JPS63227228A/ja active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49123209A (enrdf_load_stackoverflow) * | 1973-03-29 | 1974-11-26 | ||
| JPS54507A (en) * | 1977-06-03 | 1979-01-05 | Hitachi Ltd | Receiver for multi-frequency signal |
| JPS6240829A (ja) * | 1985-08-16 | 1987-02-21 | Fujitsu Ltd | モデムトレ−ニング信号検出器 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0526379B2 (enrdf_load_stackoverflow) | 1993-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH05207523A (ja) | Dtmf検出方法及び装置 | |
| US4606045A (en) | Method and apparatus for detecting an equalizer training period in a receiving-end modem | |
| US4462108A (en) | Modem signal acquisition technique | |
| JPS63227228A (ja) | モデムトレ−ニング信号検出器 | |
| US4410762A (en) | Dual mode tone detector circuit | |
| JPS6240829A (ja) | モデムトレ−ニング信号検出器 | |
| EP0066624B1 (en) | Tone detector circuit | |
| EP0238100A2 (en) | Improved modem signal acquisition technique | |
| US7805119B2 (en) | Multi-frequency detector | |
| JPH0282847A (ja) | 入力信号断検出制御方式 | |
| JPS6224733A (ja) | 切替制御方式 | |
| JPS587968A (ja) | リングトリツプ回路 | |
| EP0134860A1 (en) | Improved modem signal acquisition technique | |
| JPH023337B2 (enrdf_load_stackoverflow) | ||
| JPS5856556A (ja) | ト−ン検出方式 | |
| JPS647703B2 (enrdf_load_stackoverflow) | ||
| Hordeski Jr | TUNABLE FSK/AM SIGNAL DETECTOR ON A 6U-VME CARD | |
| JPS6149866B2 (enrdf_load_stackoverflow) | ||
| JPS63296435A (ja) | モデムトレ−ニング信号識別方式 | |
| JPH11194800A (ja) | 指令信号検出装置 | |
| JPS62159543A (ja) | デイジタル受信機のタイミング同期検出回路 | |
| JPH033429B2 (enrdf_load_stackoverflow) | ||
| JPH0316451A (ja) | バースト検出装置 | |
| JPH0730593A (ja) | 変調波通信方法 | |
| JPS58191553A (ja) | デ−タ伝送装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |