JPS62178674U - - Google Patents
Info
- Publication number
- JPS62178674U JPS62178674U JP6521086U JP6521086U JPS62178674U JP S62178674 U JPS62178674 U JP S62178674U JP 6521086 U JP6521086 U JP 6521086U JP 6521086 U JP6521086 U JP 6521086U JP S62178674 U JPS62178674 U JP S62178674U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- pseudo
- frequency converter
- frequency
- selection data
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の周波数コンバーターのブロツ
ク図である。
１……ＶＨＦ入力端子、２……周波数変換器、
３……切替スイツチ、４……混合器、５……発振
器、６……周波数変調器、７……可聴周波数発振
器、８……変換出力端子、９……選択データ発生
器、１０……擬似信号発生部。
FIG. 1 is a block diagram of the frequency converter of the present invention. 1...VHF input terminal, 2...Frequency converter,
3... Selector switch, 4... Mixer, 5... Oscillator, 6... Frequency modulator, 7... Audio frequency oscillator, 8... Conversion output terminal, 9... Selection data generator, 10... Pseudo Signal generator.
Claims (1)
テレビ信号を予め決められた周波数帯に変換する
周波数変換器と、前記選択データを発生する選択
データ発生器とを有し、前記周波数変換器の出力
信号を変換出力端子に与えるようにした周波数コ
ンバータにおいて、前記予め決められた周波数帯
の映像キヤリアと、前記予め決められた周波数帯
にあり、可聴周波数の信号で周波数変調された音
声キヤリアとを混ぜ合せた擬似放送形態テレビ信
号を発生する擬似信号発生部と、前記周波数変換
器の出力信号と前記擬似信号発生部からの前記擬
似放送形態テレビ信号とのうち、いずれか一方を
前記変換出力端子に与える切替スイツチとを有し
、該切替スイツチは、前記選択データが変化して
から前記周波数変換器の出力信号が正常に発生す
るまでの一定時間のみ、前記擬似放送形態テレビ
信号を前記変換出力端子に与えることを特徴とす
る周波数コンバータ。 It has a frequency converter that converts a broadcast format television signal of a frequency selected by selection data into a predetermined frequency band, and a selection data generator that generates the selection data, and the output signal of the frequency converter is In a frequency converter that is applied to a conversion output terminal, a video carrier in the predetermined frequency band and an audio carrier in the predetermined frequency band and frequency-modulated with an audible frequency signal are mixed. a pseudo-signal generation section that generates a pseudo-broadcasting format television signal; and switching to provide either one of the output signal of the frequency converter and the pseudo-broadcasting format television signal from the pseudo-signal generation section to the conversion output terminal. a switch, the changeover switch applies the pseudo-broadcast television signal to the conversion output terminal only for a certain period of time after the selection data changes until the output signal of the frequency converter is normally generated. A frequency converter characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6521086U JPS62178674U (en) | 1986-04-30 | 1986-04-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6521086U JPS62178674U (en) | 1986-04-30 | 1986-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62178674U true JPS62178674U (en) | 1987-11-13 |
Family
ID=30902073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6521086U Pending JPS62178674U (en) | 1986-04-30 | 1986-04-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62178674U (en) |
-
1986
- 1986-04-30 JP JP6521086U patent/JPS62178674U/ja active Pending
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