JPS5525282A - Picture signal addition circuit for facsimile modulation signal - Google Patents
Picture signal addition circuit for facsimile modulation signalInfo
- Publication number
- JPS5525282A JPS5525282A JP9881478A JP9881478A JPS5525282A JP S5525282 A JPS5525282 A JP S5525282A JP 9881478 A JP9881478 A JP 9881478A JP 9881478 A JP9881478 A JP 9881478A JP S5525282 A JPS5525282 A JP S5525282A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- facsimile
- picture
- addition
- phase
- 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
Abstract
PURPOSE: To secure the addition of the facsimile picture signal with no deterioration of the picture signal by switching the phase of the carrier signal within the signal addition device at the repeating installation and via the control signal sent from the facsimile picture signal addition control device and then transmitting the signal to the receiving device.
CONSTITUTION: The transmission original picture set to transmitting device 1 receives the photoelectric conversion after scanning with addition of the synchronous signal showing the start of each scan and then undergoes the double-phase amplitude/phase modulation after conversion into the base band signal to be transmitted to repeating installation 2 in the form of the facsimile modulation signal. At installation 2 the synchronous and phase signals are extracted 3, and the phase of the carrier signal within signal addition device 6 is switching by the control signal sent from facsimile picture signal addition control unit 4 to sent to receiving device 7. The facsimile modulation signal received at device 7 is demodulated and decoded to the base band signal to be regenerated. In such way, the facsimile picture signal can be added in a simple constitution with no deterioration of the picture quality.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9881478A JPS6053500B2 (en) | 1978-08-14 | 1978-08-14 | Image signal addition circuit for facsimile modulation signal |
GB7921592A GB2026282B (en) | 1978-07-10 | 1979-06-21 | Signal superimposing apparatus |
CA000330357A CA1117645A (en) | 1978-07-10 | 1979-06-22 | Facsimile signal superposing system |
FR7917781A FR2433867A1 (en) | 1978-07-10 | 1979-07-09 | OVERLAY SYSTEM FOR FAC-SIMILE |
US06/056,287 US4255766A (en) | 1978-07-10 | 1979-07-10 | Facsimile signal superposing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9881478A JPS6053500B2 (en) | 1978-08-14 | 1978-08-14 | Image signal addition circuit for facsimile modulation signal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5525282A true JPS5525282A (en) | 1980-02-22 |
JPS6053500B2 JPS6053500B2 (en) | 1985-11-26 |
Family
ID=14229784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9881478A Expired JPS6053500B2 (en) | 1978-07-10 | 1978-08-14 | Image signal addition circuit for facsimile modulation signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6053500B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57113766U (en) * | 1980-12-29 | 1982-07-14 | ||
JPH0561354U (en) * | 1992-01-27 | 1993-08-13 | 油谷重工株式会社 | Hydraulic switching device for dismantling machine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0631999U (en) * | 1992-09-22 | 1994-04-26 | 近畿配管株式会社 | Cutting machine for synthetic resin waste materials |
-
1978
- 1978-08-14 JP JP9881478A patent/JPS6053500B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57113766U (en) * | 1980-12-29 | 1982-07-14 | ||
JPH0561354U (en) * | 1992-01-27 | 1993-08-13 | 油谷重工株式会社 | Hydraulic switching device for dismantling machine |
Also Published As
Publication number | Publication date |
---|---|
JPS6053500B2 (en) | 1985-11-26 |
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