JPS52106211A - Pb signal reception system - Google Patents
Pb signal reception systemInfo
- Publication number
- JPS52106211A JPS52106211A JP2226176A JP2226176A JPS52106211A JP S52106211 A JPS52106211 A JP S52106211A JP 2226176 A JP2226176 A JP 2226176A JP 2226176 A JP2226176 A JP 2226176A JP S52106211 A JPS52106211 A JP S52106211A
- Authority
- JP
- Japan
- Prior art keywords
- signal reception
- reception system
- telephone
- receiver
- reduction
- 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
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
- H04Q1/4535—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 with an additional signal transmitted for voice protection
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
Abstract
PURPOSE:To realize economization of PB receiver through reduction of control line by providing control common contact into telephone.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2226176A JPS52106211A (en) | 1976-03-03 | 1976-03-03 | Pb signal reception system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2226176A JPS52106211A (en) | 1976-03-03 | 1976-03-03 | Pb signal reception system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS52106211A true JPS52106211A (en) | 1977-09-06 |
Family
ID=12077818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2226176A Pending JPS52106211A (en) | 1976-03-03 | 1976-03-03 | Pb signal reception system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52106211A (en) |
-
1976
- 1976-03-03 JP JP2226176A patent/JPS52106211A/en active Pending
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