JPS57143941A - Signal transmitting method - Google Patents
Signal transmitting methodInfo
- Publication number
- JPS57143941A JPS57143941A JP56028600A JP2860081A JPS57143941A JP S57143941 A JPS57143941 A JP S57143941A JP 56028600 A JP56028600 A JP 56028600A JP 2860081 A JP2860081 A JP 2860081A JP S57143941 A JPS57143941 A JP S57143941A
- Authority
- JP
- Japan
- Prior art keywords
- time
- transmission
- signal
- switch
- power supply
- 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
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/548—Systems for transmission via power distribution lines the power on the line being DC
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
- H04B2203/5425—Methods of transmitting or receiving signals via power distribution lines improving S/N by matching impedance, noise reduction, gain control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/547—Systems for power line communications via DC power distribution
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Dc Digital Transmission (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Steering Controls (AREA)
Abstract
PURPOSE:To transmit a signal accurately without any influence of noise by setting power supply time and signal transmission time alternately on time-division basis and by repeating power supply and signal transmission at constant intervals of time. CONSTITUTION:When a power supply switch 4 is closed by a high-potential pulse from the reception control part 6 of a reception part 1, a power voltage VCC is applied to the charged power source part 14 of a transmission part 2 through a transmission line 12, and the part 14 is charged for a power supply time T1 and discharged for the next signal transmission time T2 to generate a constant voltage VDD, thereby supplying a signal to each part of the transmission part 2. A timing detector 13, on the othe hand, detects the received voltage to send a pulse signal to a transmission control part 16. Then, the control part 16 opens a transmission switch 18 in the time T1 when the received pulse has a low level or closes the switch 18 in the time T1 when the pulse has a high level, thereby sending a transmitted signal to the transmission line 12. Simultaneously, the switch 4 of the reception part 1 is opened and a telegraph switch 11 is closed to receive the transmitted signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56028600A JPS57143941A (en) | 1981-02-28 | 1981-02-28 | Signal transmitting method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56028600A JPS57143941A (en) | 1981-02-28 | 1981-02-28 | Signal transmitting method |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61097684A Division JPS61241230A (en) | 1986-04-26 | 1986-04-26 | Signal transmitting device for steering wheel |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57143941A true JPS57143941A (en) | 1982-09-06 |
Family
ID=12253074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56028600A Pending JPS57143941A (en) | 1981-02-28 | 1981-02-28 | Signal transmitting method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57143941A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007087996A1 (en) * | 2006-01-31 | 2007-08-09 | Sew-Eurodrive Gmbh & Co. Kg | System, device and method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56158558A (en) * | 1980-05-13 | 1981-12-07 | Canon Inc | Digital communication system |
-
1981
- 1981-02-28 JP JP56028600A patent/JPS57143941A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56158558A (en) * | 1980-05-13 | 1981-12-07 | Canon Inc | Digital communication system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007087996A1 (en) * | 2006-01-31 | 2007-08-09 | Sew-Eurodrive Gmbh & Co. Kg | System, device and method |
US8098684B2 (en) | 2006-01-31 | 2012-01-17 | Sew-Eurodrive Gmbh & Co. Kg | System, device and method |
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