JPH0324735U - - Google Patents
Info
- Publication number
- JPH0324735U JPH0324735U JP1989085106U JP8510689U JPH0324735U JP H0324735 U JPH0324735 U JP H0324735U JP 1989085106 U JP1989085106 U JP 1989085106U JP 8510689 U JP8510689 U JP 8510689U JP H0324735 U JPH0324735 U JP H0324735U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- alarm
- identification signal
- generates
- jamming
- 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
- Transceivers (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Description
第１図はこの考案に係る通信機器の妨害電波ア
ラーム装置の実施例を示たブロツク図である。
主な符号の説明、１……アンテナ、２……送受
信の分波器、３……受信回路、３ａ……復調制御
端子、３ｂ……受信回路のキヤリア信号出力端子
、３ｃ……受信回路のトーン信号出力端子、４…
…ＡＮＤ回路で構成した検出回路、５……データ
復調回路、５ａ……データ復調回路のストツプ端
子、６……アラーム回路、７……送信回路、７ａ
……送信回路のスタンバイ端子、７ｂ……送信回
路の変調端子、８……識別信号発生回路。
FIG. 1 is a block diagram showing an embodiment of a jamming alarm device for communication equipment according to this invention. Explanation of the main symbols, 1... Antenna, 2... Transmission/reception duplexer, 3... Receiving circuit, 3a... Demodulation control terminal, 3b... Carrier signal output terminal of the receiving circuit, 3c... Receiving circuit Tone signal output terminal, 4...
...detection circuit composed of an AND circuit, 5...data demodulation circuit, 5a...stop terminal of data demodulation circuit, 6...alarm circuit, 7...transmission circuit, 7a
...Standby terminal of the transmitting circuit, 7b...Modulation terminal of the transmitting circuit, 8...Identification signal generation circuit.
Claims (1)
て、 受信回路に受信した妨害電波を検出する検出回
路と、この検出回路の出力信号でデータ復調回路
をストツプする復調停止回路と、妨害電波受信ア
ラームを発生するアラーム回路と、妨害電波受信
の識別信号を発生する識別信号発生回路とを備え
、上記識別信号を交信相手に送信する送信手段と
で構成したことを特徴とする通信機器の妨害電波
アラーム装置。[Claim for Utility Model Registration] In a communication device having a receiving circuit and a transmitting circuit, a detection circuit that detects interference radio waves received by the receiving circuit, and a demodulation stop that stops the data demodulation circuit using the output signal of this detection circuit. The device is characterized by comprising a circuit, an alarm circuit that generates a jamming wave reception alarm, and an identification signal generation circuit that generates an identification signal for reception of jamming waves, and a transmitting means that transmits the identification signal to the communication partner. A radio interference alarm device for communication equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989085106U JPH0324735U (en) | 1989-07-21 | 1989-07-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989085106U JPH0324735U (en) | 1989-07-21 | 1989-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0324735U true JPH0324735U (en) | 1991-03-14 |
Family
ID=31634040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989085106U Pending JPH0324735U (en) | 1989-07-21 | 1989-07-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0324735U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60172838A (en) * | 1984-02-15 | 1985-09-06 | Nippon Telegr & Teleph Corp <Ntt> | Mobile communication system |
| JPS60240233A (en) * | 1984-05-15 | 1985-11-29 | Fujitsu Ltd | receiving alarm system |
-
1989
- 1989-07-21 JP JP1989085106U patent/JPH0324735U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60172838A (en) * | 1984-02-15 | 1985-09-06 | Nippon Telegr & Teleph Corp <Ntt> | Mobile communication system |
| JPS60240233A (en) * | 1984-05-15 | 1985-11-29 | Fujitsu Ltd | receiving alarm system |
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