JPS5595471A - Television broadcast unit - Google Patents
Television broadcast unitInfo
- Publication number
- JPS5595471A JPS5595471A JP352579A JP352579A JPS5595471A JP S5595471 A JPS5595471 A JP S5595471A JP 352579 A JP352579 A JP 352579A JP 352579 A JP352579 A JP 352579A JP S5595471 A JPS5595471 A JP S5595471A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- band
- oscillator
- output
- wave
- 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
Abstract
PURPOSE: To realize a miniature and simple unit of high performance and high reliability, by using a frequency converter and band-limiting filter using an elastic surface-wave element.
CONSTITUTION: This unit consists of vestigial side-band filter, video carrier oscillator 32, sound carrier oscillator 36, a frequency modulator, etc. An elastic surface- wave element with thin comb line electrodes formed on its substrate surface has filter characteristics, and this is used for vestigial side-band filter 31 to provide band-filtering characteristics and video signal equalizing characteristics. The output of oscillator 32 is AM-modulated by amplitude modulator 34 by using a video signal compensated by compensating pre-amplifier 33 and its output has its upper- side wave and lower-side wave suppressed and is led to power amplifier 35. As a result, envelope delay distortion can be improved. Further, an IF VSB filter function and phase equalizing function are provided, so that the need for a required circuit can be eliminated. Additionally, even a sound system uses it as an oscillation filter to FM-modulate the output of oscillator 36 by a sound signal, obtaining high stability.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP352579A JPS5595471A (en) | 1979-01-16 | 1979-01-16 | Television broadcast unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP352579A JPS5595471A (en) | 1979-01-16 | 1979-01-16 | Television broadcast unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5595471A true JPS5595471A (en) | 1980-07-19 |
Family
ID=11559786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP352579A Pending JPS5595471A (en) | 1979-01-16 | 1979-01-16 | Television broadcast unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5595471A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5668369U (en) * | 1979-10-31 | 1981-06-06 | ||
JPS58178764U (en) * | 1982-05-25 | 1983-11-30 | 日本電気株式会社 | Television video transmitter |
-
1979
- 1979-01-16 JP JP352579A patent/JPS5595471A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5668369U (en) * | 1979-10-31 | 1981-06-06 | ||
JPS62300Y2 (en) * | 1979-10-31 | 1987-01-07 | ||
JPS58178764U (en) * | 1982-05-25 | 1983-11-30 | 日本電気株式会社 | Television video transmitter |
JPH0127328Y2 (en) * | 1982-05-25 | 1989-08-15 |
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