JPS5720072A - Television receiver - Google Patents
Television receiverInfo
- Publication number
- JPS5720072A JPS5720072A JP9420380A JP9420380A JPS5720072A JP S5720072 A JPS5720072 A JP S5720072A JP 9420380 A JP9420380 A JP 9420380A JP 9420380 A JP9420380 A JP 9420380A JP S5720072 A JPS5720072 A JP S5720072A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- supplied
- limiter
- adjustment
- constitution
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/50—Tuning indicators; Automatic tuning control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
Abstract
PURPOSE:To make accurate adjustment with simple constitution by extracting at least an audio IF signal and an AFT signal from the output of a phase comparator. CONSTITUTION:The output signal of a limiter 8 is supplied to a pi/2 phase shifter 17 to generate a signal pi/2 out of phase with a video carrier, and the signal from the limiter 8 and that from this phase shifter 17 are supplied to a multiplier 19. At the output terminal 11 of the multiplier 19, a signal having a suppressed video signal component appears, and this signal is supplied to a 4.5 MC tuning circuit which is not shown in the figure to extract an audio intermediate frequency SIF signal. The signal appearing at the output terminal 11 is supplied to an LPF13 and an AFT signal is supplied to a local oscillator 4. Consequently, a BPF, a limiter, etc., are used in common to simplify circuit constitution, and adjustment points are less, so the adjustment is easy, thereby making the accurate adjustment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9420380A JPS5720072A (en) | 1980-07-10 | 1980-07-10 | Television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9420380A JPS5720072A (en) | 1980-07-10 | 1980-07-10 | Television receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5720072A true JPS5720072A (en) | 1982-02-02 |
Family
ID=14103737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9420380A Pending JPS5720072A (en) | 1980-07-10 | 1980-07-10 | Television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5720072A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5830286A (en) * | 1981-08-17 | 1983-02-22 | Matsushita Electric Ind Co Ltd | Automatic frequency controller |
JPS5830287A (en) * | 1981-08-17 | 1983-02-22 | Matsushita Electric Ind Co Ltd | Automatic frequency controller |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54128611A (en) * | 1978-03-30 | 1979-10-05 | Sony Corp | Television receiver |
-
1980
- 1980-07-10 JP JP9420380A patent/JPS5720072A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54128611A (en) * | 1978-03-30 | 1979-10-05 | Sony Corp | Television receiver |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5830286A (en) * | 1981-08-17 | 1983-02-22 | Matsushita Electric Ind Co Ltd | Automatic frequency controller |
JPS5830287A (en) * | 1981-08-17 | 1983-02-22 | Matsushita Electric Ind Co Ltd | Automatic frequency controller |
JPS6326950B2 (en) * | 1981-08-17 | 1988-06-01 | Matsushita Electric Ind Co Ltd | |
JPS6326949B2 (en) * | 1981-08-17 | 1988-06-01 | Matsushita Electric Ind Co Ltd |
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