JPS55109345A - Beam index type colour television receiver - Google Patents
Beam index type colour television receiverInfo
- Publication number
- JPS55109345A JPS55109345A JP1743679A JP1743679A JPS55109345A JP S55109345 A JPS55109345 A JP S55109345A JP 1743679 A JP1743679 A JP 1743679A JP 1743679 A JP1743679 A JP 1743679A JP S55109345 A JPS55109345 A JP S55109345A
- Authority
- JP
- Japan
- Prior art keywords
- stripe
- index signal
- index
- output
- television receiver
- 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 perform index signal processing with only the index signal having single frequency by obtaining a signal having large output in relation to the first index fluorescent stripe.
CONSTITUTION: The first index fluorescent stripe 5a is formed wider than the similar stripe 5b of others. Accordingly, the output of a photoelectric converter 6 generates large output at the part corresponding to the stripe 5a, and the output of a bypath filter 7 shows the similar tendency. In this case, the threshold value of a comparator 8 can be set fairly high, so wrong operation of the comparator 8 due to noise can be prevented. Even if the threshold value is set too high and the index signal due to the succeeding stripe 5b can be obtained, the first index signal is favourably obtained as the T input of D-FF9, but in this case, noise component should be of the degree negligible. Thus, index signal can be treated simply without being affected by noises.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1743679A JPS55109345A (en) | 1979-02-16 | 1979-02-16 | Beam index type colour television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1743679A JPS55109345A (en) | 1979-02-16 | 1979-02-16 | Beam index type colour television receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55109345A true JPS55109345A (en) | 1980-08-22 |
JPS6114628B2 JPS6114628B2 (en) | 1986-04-19 |
Family
ID=11943966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1743679A Granted JPS55109345A (en) | 1979-02-16 | 1979-02-16 | Beam index type colour television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55109345A (en) |
-
1979
- 1979-02-16 JP JP1743679A patent/JPS55109345A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6114628B2 (en) | 1986-04-19 |
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