JPS6420789A - Image transmitting system - Google Patents
Image transmitting systemInfo
- Publication number
- JPS6420789A JPS6420789A JP17742987A JP17742987A JPS6420789A JP S6420789 A JPS6420789 A JP S6420789A JP 17742987 A JP17742987 A JP 17742987A JP 17742987 A JP17742987 A JP 17742987A JP S6420789 A JPS6420789 A JP S6420789A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- pulse
- signals
- width
- string
- 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
Landscapes
- Color Television Systems (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
PURPOSE:To transmit two signals in which a luminance signal (Y signal) and a color sub-carrier signal (Sc signal) are separated for a high resolution by means of one pulse string by modulating the luminance signal at a pulse interval out of high resolution type color televisional signals in which the luminance signal and the color sub-carrier signal are separated, simultaneously executing a pulse-width-modulation to the modulated pulse signal with the color sub-carrier signal and transmitting it. CONSTITUTION:A Y-signal is pulse-frequency-modulated (PFM) before-hand and the information of the Y and Sc-signals are transmitted with one pulse string by executing the pulse-width-modulation by means of the Sc-signal from the leading (or trailing) edge part of this PFM signal. Namely, the Y-signal is given to the pulse interval of the pulse string, the Sc-signal information is given to the pulse width, about the 2.5-4 times the Y-signal frequency band are sufficient for the fundamental wave frequency of this pulse string. Consequently, an emission element needs not to use particularly excellent one in a frequency characteristic, and since it is a pulse signal, a transmission can be executed without the influence of a linearity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17742987A JPS6420789A (en) | 1987-07-16 | 1987-07-16 | Image transmitting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17742987A JPS6420789A (en) | 1987-07-16 | 1987-07-16 | Image transmitting system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6420789A true JPS6420789A (en) | 1989-01-24 |
Family
ID=16030782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17742987A Pending JPS6420789A (en) | 1987-07-16 | 1987-07-16 | Image transmitting system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6420789A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09247111A (en) * | 1996-03-06 | 1997-09-19 | Nec Corp | Method for multiplexing sub-signal and its circuit |
-
1987
- 1987-07-16 JP JP17742987A patent/JPS6420789A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09247111A (en) * | 1996-03-06 | 1997-09-19 | Nec Corp | Method for multiplexing sub-signal and its circuit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2037351A1 (en) | Optical transmitter | |
JPS5222866A (en) | Demodulation system for angle modulated signal wave | |
SE7904202L (en) | KIT AND DEVICE FOR REDUCING LARGE COMPONENTS IN A FREQUENCY MODULATED SIGNAL | |
ATE33328T1 (en) | METHOD FOR COMPATIBLE RESOLUTION ENHANCEMENT FOR COLOR TELEVISION TRANSMISSION SYSTEMS. | |
JPS6420789A (en) | Image transmitting system | |
CA2016168A1 (en) | Color signal emphasizing/de-emphasizing circuit | |
JPS6420788A (en) | Signal transmitting system | |
JPS5258417A (en) | Signal transmission system for color television | |
AU4123989A (en) | System and method of transmitting a complex waveform over a communication channel utilizing lincompe x techniques | |
DE3061865D1 (en) | Spectrum converter for analog signals | |
CA2355553A1 (en) | Video signal processing apparatus | |
EP0326234A3 (en) | Method and system for signal transmission | |
ES480541A1 (en) | Method of modulating a composite color television signal on a carrier signal and device for carrying out said method | |
JPH0322490U (en) | ||
JPS57160283A (en) | Band limit circuit in color television receiver | |
JPS57145492A (en) | Color image pickup device | |
DE69327067D1 (en) | Multiplier circuit and operating method therefor | |
JPS5583358A (en) | Sound signal transmitter-receiver | |
JPS6471337A (en) | Optical transmission system | |
JPS55147074A (en) | Mutiplex method for color video signal | |
JPS52110514A (en) | Signal pressure transmission system by am-pm modulation | |
JPS529317A (en) | Stereoscopic color pictrure signal transmission method | |
JPS54134904A (en) | Light transmission system | |
JPS5494266A (en) | Pulse modulation system | |
JPS5548670A (en) | Stereo fish finder |