JPS5346203A - Tone detector - Google Patents
Tone detectorInfo
- Publication number
- JPS5346203A JPS5346203A JP12164676A JP12164676A JPS5346203A JP S5346203 A JPS5346203 A JP S5346203A JP 12164676 A JP12164676 A JP 12164676A JP 12164676 A JP12164676 A JP 12164676A JP S5346203 A JPS5346203 A JP S5346203A
- Authority
- JP
- Japan
- Prior art keywords
- tone detector
- operatiion
- hpf
- lpf
- outputs
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
- H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
PURPOSE:To enable shortening the response time and the high speed operatiion, by making logical arithmetic operation for the outputs of HPF and LPF having different cut-off frequency.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51121646A JPS5928102B2 (en) | 1976-10-09 | 1976-10-09 | tone detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51121646A JPS5928102B2 (en) | 1976-10-09 | 1976-10-09 | tone detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5346203A true JPS5346203A (en) | 1978-04-25 |
JPS5928102B2 JPS5928102B2 (en) | 1984-07-10 |
Family
ID=14816399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51121646A Expired JPS5928102B2 (en) | 1976-10-09 | 1976-10-09 | tone detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5928102B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59152961A (en) * | 1983-02-18 | 1984-08-31 | Sunstar Giken Kk | Primer composition |
JPH04173885A (en) * | 1990-11-07 | 1992-06-22 | Hitachi Chem Co Ltd | Undercoating agent composition for tacky sheet |
-
1976
- 1976-10-09 JP JP51121646A patent/JPS5928102B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59152961A (en) * | 1983-02-18 | 1984-08-31 | Sunstar Giken Kk | Primer composition |
JPH0150350B2 (en) * | 1983-02-18 | 1989-10-30 | Sunstar Giken Kk | |
JPH04173885A (en) * | 1990-11-07 | 1992-06-22 | Hitachi Chem Co Ltd | Undercoating agent composition for tacky sheet |
Also Published As
Publication number | Publication date |
---|---|
JPS5928102B2 (en) | 1984-07-10 |
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