JPS5499508A - Transmission system for hand-written telautogram - Google Patents

Transmission system for hand-written telautogram

Info

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
Application number
JP598578A
Other languages
Japanese (ja)
Other versions
JPS5747477B2 (en
Inventor
Yukio Tanaka
Akifumi Akiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP598578A priority Critical patent/JPS5499508A/en
Publication of JPS5499508A publication Critical patent/JPS5499508A/en
Publication of JPS5747477B2 publication Critical patent/JPS5747477B2/ja
Granted legal-status Critical Current

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.
JP598578A 1978-01-23 1978-01-23 Transmission system for hand-written telautogram Granted JPS5499508A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0282670U (en) * 1988-12-16 1990-06-26

Also Published As

Publication number Publication date
JPS5747477B2 (en) 1982-10-09

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