JPS54144123A - Pattern generator - Google Patents
Pattern generatorInfo
- Publication number
- JPS54144123A JPS54144123A JP5207778A JP5207778A JPS54144123A JP S54144123 A JPS54144123 A JP S54144123A JP 5207778 A JP5207778 A JP 5207778A JP 5207778 A JP5207778 A JP 5207778A JP S54144123 A JPS54144123 A JP S54144123A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- output
- horizontal
- outputting
- vertical
- 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
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
PURPOSE: To observe the horizontal and vertical linearity of TV receivers, by giving the line tilt pattern functions to the simple type pattern generator, and by making easy the evaluation of total linearity of TV screen.
CONSTITUTION: The oscillator 1 outputting the clock pulse 2 integer times the horizontal frequency, the horizontal counter 3 counting the clock pulse 2 of the oscillator 1 and outputting the horizontal frequency signal, and vertical counter 11 counting the specified bit output of the counter 3 and outputting the vertical frequency signal, are provided. Further, the comparator 7 taking the output of the counter 3 as one input, taking the output of the counter 11 as another input, and detecting the agreement, and the comparator 9 detecting the agreement between the inverted input of the counter 3 and the output of the counter 11, are provided. Further, the logical sum of the comparators 7 and 9 is taken with the gate circuit 14, the output of the circuit 14 is fed to the modulator 22, the output of the signal generating and control circuit 20 wich inputs the output of the counters 3 and 11 is controlled to display the line pattern tilt on the CRT.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5207778A JPS54144123A (en) | 1978-04-29 | 1978-04-29 | Pattern generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5207778A JPS54144123A (en) | 1978-04-29 | 1978-04-29 | Pattern generator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54144123A true JPS54144123A (en) | 1979-11-10 |
Family
ID=12904746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5207778A Pending JPS54144123A (en) | 1978-04-29 | 1978-04-29 | Pattern generator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54144123A (en) |
-
1978
- 1978-04-29 JP JP5207778A patent/JPS54144123A/en active Pending
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