JPH0437318A - Radio signal receiver - Google Patents

Radio signal receiver

Info

Publication number
JPH0437318A
JPH0437318A JP14486490A JP14486490A JPH0437318A JP H0437318 A JPH0437318 A JP H0437318A JP 14486490 A JP14486490 A JP 14486490A JP 14486490 A JP14486490 A JP 14486490A JP H0437318 A JPH0437318 A JP H0437318A
Authority
JP
Japan
Prior art keywords
frequency
section
radio wave
switching
tuning
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
Application number
JP14486490A
Other languages
Japanese (ja)
Inventor
Yoichi Isogawa
五十川　洋一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP14486490A priority Critical patent/JPH0437318A/en
Publication of JPH0437318A publication Critical patent/JPH0437318A/en
Pending legal-status Critical Current

Links

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To attain automatic reception of an emergency broadcast or the like or special automatic hot line reception by tuning a frequency received so far to a predetermined frequency forcibly upon the receipt of a radio wave with said predetermined frequency. CONSTITUTION:A switching signal tuning section 4 tuned to a predetermined frequency (such as the frequency of an emergency broadcast radio wave) always monitors the output of a radio wave reception section 1 and detects it when a respectively of an emergency broadcast radio wave exists in the output and sends a switching command signal to a switching control section 5. Upon the receipt of the switching command signal, the control section 5 sends a control signal to apply forced switching tuning from a frequency tuned and selected at present into the frequency of the emergency broadcast radio wave.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は無線信号受信装置に関し、特にラジオ、テレビ
等の放送電波を受信する無線信号装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a radio signal receiving device, and particularly to a radio signal device that receives broadcast waves from radio, television, and the like.

〔従来の技術〕[Conventional technology]

従来この種の無線信号受信装置は、決められた周波数に
対しては視聴者が手動で同調をとるようになっていた。Conventionally, this type of wireless signal receiving device requires a viewer to manually tune in to a predetermined frequency.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上述した従来の無線信号受信装置は、周波数の選択が視
聴者の人手によってなされるため、緊急放送を受信する
場合にも、その放送電波の周波数に視聴者が手動で同調
させる必要があるという欠点がある。The conventional wireless signal receiving device described above has the disadvantage that the frequency selection is done manually by the viewer, so even when receiving an emergency broadcast, the viewer must manually tune to the frequency of the broadcast radio wave. There is.

〔問題点を解決するための手段〕[Means for solving problems]

本発明の無線信号受信装置は、電波受信部と周波数同調
部と受信信号部復号部からなる無線信号受信装置におい
て、あらかじめ決められた周波数に同調して得た信号を
検出したとき強制的に前記周波数同調部を前記同調した
周波数に切り替える切替手段を備えることを特徴とする
。The wireless signal receiving device of the present invention includes a radio wave receiving section, a frequency tuning section, and a received signal section decoding section. The present invention is characterized by comprising a switching means for switching the frequency tuning section to the tuned frequency.

〔実施例〕〔Example〕

次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第１図は本発明の無線信号受信装置の一実施例のブロッ
ク図であり、電波受信部１１周波数同調部２．受信信号
復号部３．切替信号同調部４および切替制御部５から構
成される。FIG. 1 is a block diagram of an embodiment of the radio signal receiving device of the present invention, in which a radio wave receiving section 11 a frequency tuning section 2. Received signal decoding section 3. It is composed of a switching signal tuning section 4 and a switching control section 5.

一般のラジオ、テレビ等の放送電波は電波受信部１で受
信され、周波数同調部２において視聴者によって周波数
を選択され、受信信号復号部３で画像又は音声等に変換
される。Broadcast radio waves from general radio, television, etc. are received by a radio wave receiving section 1, a frequency is selected by a viewer at a frequency tuning section 2, and converted into images, audio, etc. by a received signal decoding section 3.

あらかじめ定めた周波数（例えば緊急放送電波の周波数
）に同調させである切替信号同調部４は、電波受信部１
の出力を常時監視し、これに緊急放送電波の周波数が存
在するときはこれを検出して切替制御部５に切替指示信
号を送出する。切替制御部５はこの切替指示信号を受け
ると制御信号を発出して、周波数同調部２を現在選択同
調している周波数から緊急放送電波の周波数に強制的に
切替同調させる制御を行う。The switching signal tuning unit 4, which is tuned to a predetermined frequency (for example, the frequency of emergency broadcast radio waves), connects the radio wave receiving unit 1.
It constantly monitors the output of , and when the frequency of the emergency broadcast radio wave is present, it is detected and a switching instruction signal is sent to the switching control section 5 . When the switching control section 5 receives this switching instruction signal, it issues a control signal to forcibly switch and tune the frequency tuning section 2 from the currently selectively tuned frequency to the frequency of the emergency broadcast radio wave.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明の無線信号受信装置は、あら
かじめ決められた周波数の電波を受信したとき、今まで
同調していた周波数を強制的にこの周波数に同調させる
ことにより、緊急放送等の自動受信や特別なホットライ
ン受信が自動的に行われる効果がある。As explained above, when the radio signal receiving device of the present invention receives radio waves of a predetermined frequency, it forcibly tunes the previously tuned frequency to this frequency, thereby automatically transmitting emergency broadcasts, etc. There is an effect that reception and special hotline reception are performed automatically.

【図面の簡単な説明】 第１図は本発明の無線信号受信装置の一実施例を示すブ
ロック図である。 １・・・電波受信部、２・・・周波数同調部、３・・・
受信信号復号部、４・・・切替信号同調部、５・・・切
替制御部。 代理人　弁理士　　内　原　　晋BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a radio signal receiving device of the present invention. 1... Radio wave receiving section, 2... Frequency tuning section, 3...
Received signal decoding section, 4... switching signal tuning section, 5... switching control section. Agent Patent Attorney Susumu Uchihara

Claims (1)

【特許請求の範囲】[Claims] 電波受信部と周波数同調部と受信信号部復号部からなる
無線信号受信装置において、あらかじめ決められた周波
数に同調して得た信号を検出したとき強制的に前記周波
数同調部を前記同調した周波数に切り替える切替手段を
備えることを特徴とする無線信号受信装置。In a radio signal receiving device consisting of a radio wave receiving section, a frequency tuning section, and a received signal section decoding section, when a signal obtained by tuning to a predetermined frequency is detected, the frequency tuning section is forcibly tuned to the tuned frequency. A wireless signal receiving device comprising a switching means for switching.
JP14486490A 1990-06-01 1990-06-01 Radio signal receiver Pending JPH0437318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14486490A JPH0437318A (en) 1990-06-01 1990-06-01 Radio signal receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14486490A JPH0437318A (en) 1990-06-01 1990-06-01 Radio signal receiver

Publications (1)

Publication Number Publication Date
JPH0437318A true JPH0437318A (en) 1992-02-07

Family

ID=15372171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14486490A Pending JPH0437318A (en) 1990-06-01 1990-06-01 Radio signal receiver

Country Status (1)

Country Link
JP (1) JPH0437318A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001339658A (en) * 2000-03-31 2001-12-07 Matsushita Electric Ind Co Ltd Regionally specified signal telecommunication receiver
JP2007209994A (en) * 2006-02-07 2007-08-23 Sanmei Electric Co Ltd Silver solder welding method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001339658A (en) * 2000-03-31 2001-12-07 Matsushita Electric Ind Co Ltd Regionally specified signal telecommunication receiver
JP2007209994A (en) * 2006-02-07 2007-08-23 Sanmei Electric Co Ltd Silver solder welding method

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