JPS56168462A - Data transmitting system - Google Patents
Data transmitting systemInfo
- Publication number
- JPS56168462A JPS56168462A JP7207780A JP7207780A JPS56168462A JP S56168462 A JPS56168462 A JP S56168462A JP 7207780 A JP7207780 A JP 7207780A JP 7207780 A JP7207780 A JP 7207780A JP S56168462 A JPS56168462 A JP S56168462A
- Authority
- JP
- Japan
- Prior art keywords
- main signal
- duration
- transmitted
- output
- gain control
- 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
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/023—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse amplitude modulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Dc Digital Transmission (AREA)
Abstract
PURPOSE:To ensure a correct and automatic gain control when the signal is transmitted from a DC through an optional speed of transmission, by transmitting the exclusive OR or a repetitive pulse having much narrower duration and the pulse duration of a main signal plus the main signal. CONSTITUTION:A repetitive pulse having a duration much narrower than the minimum duration of ''1'' or ''0'' of a main signal is produced from an oscillator 2 of a transmitter 9 and then applied to an exclusive OR circuit 3 along with the main signal. The output of the circuit 3 is transmitted to a receiver 10, and the transmitted signal receives an automatic gain control amplification through an automatic gain control amplifier 4. Then the output of amplification is integrated through an intergral network 5. The output of the network 5 is identified through a discriminator 6 at a certain level and then digitaized to reproduce the main signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7207780A JPS56168462A (en) | 1980-05-29 | 1980-05-29 | Data transmitting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7207780A JPS56168462A (en) | 1980-05-29 | 1980-05-29 | Data transmitting system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56168462A true JPS56168462A (en) | 1981-12-24 |
Family
ID=13478976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7207780A Pending JPS56168462A (en) | 1980-05-29 | 1980-05-29 | Data transmitting system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56168462A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0858179A (en) * | 1995-06-22 | 1996-03-05 | Toshiba Corp | Document forming apparatus and document printing method |
-
1980
- 1980-05-29 JP JP7207780A patent/JPS56168462A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0858179A (en) * | 1995-06-22 | 1996-03-05 | Toshiba Corp | Document forming apparatus and document printing method |
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