JPS5574271A - Display unit for reception frequency - Google Patents
Display unit for reception frequencyInfo
- Publication number
- JPS5574271A JPS5574271A JP14824878A JP14824878A JPS5574271A JP S5574271 A JPS5574271 A JP S5574271A JP 14824878 A JP14824878 A JP 14824878A JP 14824878 A JP14824878 A JP 14824878A JP S5574271 A JPS5574271 A JP S5574271A
- Authority
- JP
- Japan
- Prior art keywords
- register
- content
- pulse
- processing
- digital
- 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
- Circuits Of Receivers In General (AREA)
- Television Receiver Circuits (AREA)
Abstract
PURPOSE: To make suitable the unit in the processing at the digital integrated circuit, by making unnecessary the analog processing through the drawing of the pattern on the screen controlled with the digital code corresponding to the reception frequency.
CONSTITUTION: The reference counter 17 counts the clock pulse CL in synchronizing with the horizontal synchronizing signal H. The content of the presettable counter in which the channel selection code of electron tuner is stored in the register 18. The content of the register 18 and that of the reference content of the register 18 and that of the reference counter 17 are compared at the pulse generator 19 to form the pulse P in which the pulse width is changed according to the content of the register 18. The bar pattern is obtained on the screen by processing the pulse at the vertical position set circuit and superimposing it on the video circuit. Since no analog processing is required in this unit and digital processing is entirely enabled, it is suited to the display integrated circuit.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14824878A JPS5574271A (en) | 1978-11-30 | 1978-11-30 | Display unit for reception frequency |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14824878A JPS5574271A (en) | 1978-11-30 | 1978-11-30 | Display unit for reception frequency |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5574271A true JPS5574271A (en) | 1980-06-04 |
Family
ID=15448538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14824878A Pending JPS5574271A (en) | 1978-11-30 | 1978-11-30 | Display unit for reception frequency |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5574271A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0481024A (en) * | 1990-12-25 | 1992-03-13 | Honda Motor Co Ltd | Information content identifying device for on-vehicle receiver |
-
1978
- 1978-11-30 JP JP14824878A patent/JPS5574271A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0481024A (en) * | 1990-12-25 | 1992-03-13 | Honda Motor Co Ltd | Information content identifying device for on-vehicle receiver |
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