JPS5499508A - Transmission system for hand-written telautogram - Google Patents
Transmission system for hand-written telautogramInfo
- Publication number
- JPS5499508A JPS5499508A JP598578A JP598578A JPS5499508A JP S5499508 A JPS5499508 A JP S5499508A JP 598578 A JP598578 A JP 598578A JP 598578 A JP598578 A JP 598578A JP S5499508 A JPS5499508 A JP S5499508A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- transmission
- band
- demodulation
- coordinates
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C21/00—Systems for transmitting the position of an object with respect to a predetermined reference system, e.g. tele-autographic system
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
PURPOSE:To reduce the amplitude fluctuation at the transmission line as well as to secure the transmission in the narrow band by giving the AM modulation to the Y signal via the X signal and in the form of the carrier wave for transmission and reproducing the X signal through FM demodulation after AM demodulation at the receiver side. CONSTITUTION:Y signal fy generated at telautogram signal generator 11 is turned to the carrier wave and then AM-modulated 17 via X signal fX to be transmitted to transmission line 13. At the receiver side, amplitude limitation 18 is given to fy to remove the AM component with FM demodulation 19 given next. Thus, the voltage or current Y corresponding to the position of the Y coordinates is drawn out. While at AM demodulator 21, the received input signal is AM-demodulated, and the output undergoes FM modulation at fx demodulating FM demodulator 15 to botain the voltage or current X corresponding to the position of the X coordinates. The spectrums are only fy (fy1<= fy<=fy2) and fy + or - fx which is obtained by giving AM modulaion to fy with fx(fx1<= fx<=fx2) on line 13. Thus, the necessary transmission band features (fy2 - fy1) + 2fx2 and the band can be narrowed if the necessary band fluctuation is ignored by shifting the pen on the coordinates.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP598578A JPS5499508A (en) | 1978-01-23 | 1978-01-23 | Transmission system for hand-written telautogram |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP598578A JPS5499508A (en) | 1978-01-23 | 1978-01-23 | Transmission system for hand-written telautogram |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5499508A true JPS5499508A (en) | 1979-08-06 |
JPS5747477B2 JPS5747477B2 (en) | 1982-10-09 |
Family
ID=11626092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP598578A Granted JPS5499508A (en) | 1978-01-23 | 1978-01-23 | Transmission system for hand-written telautogram |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5499508A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0282670U (en) * | 1988-12-16 | 1990-06-26 |
-
1978
- 1978-01-23 JP JP598578A patent/JPS5499508A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5747477B2 (en) | 1982-10-09 |
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