JPS5568787A - Beam index type color television picture receiver - Google Patents
Beam index type color television picture receiverInfo
- Publication number
- JPS5568787A JPS5568787A JP14175878A JP14175878A JPS5568787A JP S5568787 A JPS5568787 A JP S5568787A JP 14175878 A JP14175878 A JP 14175878A JP 14175878 A JP14175878 A JP 14175878A JP S5568787 A JPS5568787 A JP S5568787A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- pulse
- index
- supplied
- color
- 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
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
PURPOSE: To increase the faithful color reproduction by giving the control to secure the equiphase for the division signal to be compared with the index signal in terms of the phase and thus correcting the phase shift of the index signal along with the accurate color switching secured.
CONSTITUTION: Index fluorescent substance stripe I is formed to picture tube 10 with n-fold pitch of a pair of color fluorescent substance stripe. And signal SI sent from index signal detector 20 is supplied to PLL40 to form the pulse of 3n-fold as much as signal SI, and this pulse is divided 50 to form pulses PR, PG and PB each gating each primary color. Thus each primary color is supplied to picture tube in sequence and synchronously. Then PLL40 forms 42 gate pulse PN of the equal repetitive frequency as signal SI at the position of stripe I and based on the output of VCO41, and the signal supplied to tube 10 is detected 45 by pulse PN. This detection signal undergoes phase comparison 43 with signal SI, and this comparison output controls VCO41.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14175878A JPS5568787A (en) | 1978-11-17 | 1978-11-17 | Beam index type color television picture receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14175878A JPS5568787A (en) | 1978-11-17 | 1978-11-17 | Beam index type color television picture receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5568787A true JPS5568787A (en) | 1980-05-23 |
JPS6161314B2 JPS6161314B2 (en) | 1986-12-25 |
Family
ID=15299499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14175878A Granted JPS5568787A (en) | 1978-11-17 | 1978-11-17 | Beam index type color television picture receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5568787A (en) |
-
1978
- 1978-11-17 JP JP14175878A patent/JPS5568787A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6161314B2 (en) | 1986-12-25 |
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