JPS5510259A - Converter for color video signal - Google Patents
Converter for color video signalInfo
- Publication number
- JPS5510259A JPS5510259A JP8324778A JP8324778A JPS5510259A JP S5510259 A JPS5510259 A JP S5510259A JP 8324778 A JP8324778 A JP 8324778A JP 8324778 A JP8324778 A JP 8324778A JP S5510259 A JPS5510259 A JP S5510259A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- phase
- absence
- circuit part
- color video
- 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
Landscapes
- Color Television Systems (AREA)
Abstract
PURPOSE: To make it possible to build in a general VTR, etc., a converter which can correct automatically the phase jump of a carrier occurring due to an absence of a horizontal period and a double reading and then make the phase of the obtained chrominance subcarrier continuous, by miniaturizing the constitution.
CONSTITUTION: To convert the 1st PAL and SECAM system color video signals into the 2nd NTSC system color video signals, the 1st video signal from VTR having two helical scan type rotary heads is applied to input terminal 10 and sequentially written to the memory with the number of horizontal scans converted by line-number converter circuit part 11. Then, frequency converter circuit part 12 converts the signal into the 2nd system carrier frequency signal by mixing the frequency signal from oscillator 13 with the low-frequency carrier from circuit part 11. At this time, phase correction circuit 14 corrects the phase of the signal from oscillator 13 by a signal from terminal 16 corresponding to the absence or double read at point in time when the absence or double reading occurs, thereby outputing a continuous signal to output terminal 15.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8324778A JPS5510259A (en) | 1978-07-08 | 1978-07-08 | Converter for color video signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8324778A JPS5510259A (en) | 1978-07-08 | 1978-07-08 | Converter for color video signal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5510259A true JPS5510259A (en) | 1980-01-24 |
JPS6231555B2 JPS6231555B2 (en) | 1987-07-09 |
Family
ID=13796991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8324778A Granted JPS5510259A (en) | 1978-07-08 | 1978-07-08 | Converter for color video signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5510259A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0727218Y2 (en) * | 1990-09-03 | 1995-06-21 | 河西工業株式会社 | Interior parts for automobiles |
JP6747473B2 (en) | 2018-06-13 | 2020-08-26 | Tdk株式会社 | Non-reciprocal circuit device and communication device using the same |
-
1978
- 1978-07-08 JP JP8324778A patent/JPS5510259A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6231555B2 (en) | 1987-07-09 |
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