JPS5628546A - Multifrequency signal receiver - Google Patents
Multifrequency signal receiverInfo
- Publication number
- JPS5628546A JPS5628546A JP10398579A JP10398579A JPS5628546A JP S5628546 A JPS5628546 A JP S5628546A JP 10398579 A JP10398579 A JP 10398579A JP 10398579 A JP10398579 A JP 10398579A JP S5628546 A JPS5628546 A JP S5628546A
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- signal
- circuits
- discriminate
- 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 make a unit small-size, by performing signal discrimination holding control by the output of a signal control circuit and by transmitting the receiving output to a pertinent channel lead. CONSTITUTION:Circuits 40-43 and 40'-43' which discriminate and hold pulse train signals, circuits 24 and 24' which operate OR of respective outputs of signal detecting circuits for every high group and low group, circuit 25 which operates AND of outputs of OR circuits of respective groups, circuit 34 which rectifies the output of AND circuit 25, and circuit 38 which uses the signal based on the rectification output as the control signal to discriminate and hold the OR output are provided in respective output sides of signal detecting circuits 8-11 and 8'-11'. Then, circuits 40-43 and 40'-43' are controlled commonly on the basis of the output of circuit 38, and a receiving output signal is obtained on output leads L1-L4 and H1-H4 corresponding to the input signal frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54103985A JPS6057781B2 (en) | 1979-08-17 | 1979-08-17 | multifrequency signal receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54103985A JPS6057781B2 (en) | 1979-08-17 | 1979-08-17 | multifrequency signal receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5628546A true JPS5628546A (en) | 1981-03-20 |
| JPS6057781B2 JPS6057781B2 (en) | 1985-12-17 |
Family
ID=14368598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54103985A Expired JPS6057781B2 (en) | 1979-08-17 | 1979-08-17 | multifrequency signal receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6057781B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH056694U (en) * | 1991-07-10 | 1993-01-29 | 沖電線株式会社 | Conductive terminal |
-
1979
- 1979-08-17 JP JP54103985A patent/JPS6057781B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH056694U (en) * | 1991-07-10 | 1993-01-29 | 沖電線株式会社 | Conductive terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6057781B2 (en) | 1985-12-17 |
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