JPH0157834U - - Google Patents
Info
- Publication number
- JPH0157834U JPH0157834U JP1987153639U JP15363987U JPH0157834U JP H0157834 U JPH0157834 U JP H0157834U JP 1987153639 U JP1987153639 U JP 1987153639U JP 15363987 U JP15363987 U JP 15363987U JP H0157834 U JPH0157834 U JP H0157834U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- electric field
- switching circuit
- diversity
- 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
- 230000005684 electric field Effects 0.000 claims 3
- 230000005236 sound signal Effects 0.000 claims 3
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は別の実施例を示すブロツク図、第３図は
従来例のブロツク図である。
１ａ，１ｂ……アンテナ、２ａ，２ｂ……切換
え回路、３……フロントエンド、４……音声中間
周波増幅回路、５……検波回路、６……映像中間
周波増幅回路、７……検波回路、８……検出回路
、９……コントローラ、１０……検出回路、１１
……選択信号供給手段、１２……ブラウン管。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a block diagram showing another embodiment, and FIG. 3 is a block diagram of a conventional example. 1a, 1b...Antenna, 2a, 2b...Switching circuit, 3...Front end, 4...Audio intermediate frequency amplification circuit, 5...Detection circuit, 6...Video intermediate frequency amplification circuit, 7...Detection circuit , 8...detection circuit, 9...controller, 10...detection circuit, 11
. . . Selection signal supply means, 12 . . . Braun tube.
Claims (1)
、最大レベルのものを選択切換えするダイバーシ
テイアンテナ切換え回路を具備するダイバーシテ
イ受信装置において、受信信号の音声信号成分の
入力電界レベルと前記受信信号の映像信号成分の
入力電界レベルとを比較する回路と、上記映像信
号および音声信号の入力電界レベルによつて上記
切換え回路を制御するコントロール回路と、自動
車の走行状態を検出してその検出信号により上記
コントロール回路の動作を切換える選択信号供給
手段とを具備してなり、上記選択信号供給手段の
信号で上記コントロール回路は音声信号あるいは
映像信号のいづれかのダイバーシテイ受信を選択
して、上記切換え回路を制御することを特徴とす
る車載テレビのダイバーシテイ受信装置。 In a diversity receiver equipped with a diversity antenna switching circuit that compares received signal levels from a plurality of antennas and selects and switches the one with the highest level, the input electric field level of the audio signal component of the received signal and the video of the received signal are determined. a circuit that compares the input electric field level of the signal component; a control circuit that controls the switching circuit according to the input electric field level of the video signal and the audio signal; and a control circuit that detects the driving state of the vehicle and uses the detected signal to control the switching circuit. selection signal supply means for switching the operation of the circuit, and the control circuit selects diversity reception of either the audio signal or the video signal according to the signal from the selection signal supply means, and controls the switching circuit. A diversity receiving device for an in-vehicle television, which is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987153639U JPH0157834U (en) | 1987-10-06 | 1987-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987153639U JPH0157834U (en) | 1987-10-06 | 1987-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0157834U true JPH0157834U (en) | 1989-04-11 |
Family
ID=31429663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987153639U Pending JPH0157834U (en) | 1987-10-06 | 1987-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0157834U (en) |
-
1987
- 1987-10-06 JP JP1987153639U patent/JPH0157834U/ja active Pending
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