JPH0748641B2 - Tuning device - Google Patents
Tuning deviceInfo
- Publication number
- JPH0748641B2 JPH0748641B2 JP63106433A JP10643388A JPH0748641B2 JP H0748641 B2 JPH0748641 B2 JP H0748641B2 JP 63106433 A JP63106433 A JP 63106433A JP 10643388 A JP10643388 A JP 10643388A JP H0748641 B2 JPH0748641 B2 JP H0748641B2
- Authority
- JP
- Japan
- Prior art keywords
- electric field
- tuning
- field strength
- station
- stations
- 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.)
- Expired - Lifetime
Links
- 230000005684 electric field Effects 0.000 claims description 42
- 238000001514 detection method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、車載用のテレビジョン受信機，ラジオ受信機
等の選局装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a channel selection device such as a vehicle-mounted television receiver or radio receiver.
従来の技術 従来のテレビジョン受信機，ラジオ受信機等の選局装置
において、電界強度の強い局を選局する方法としては、
１局ずつ受信チャンネルアップまたはダウンする方法、
あるいは、一定レベル以上の電界強度の得られるチャン
ネルを自動的にサーチする方法が一般的である。また、
全ての受信チャンネルについて１局ずつアップ／ダウン
またはオートサーチし、それらの受信チャンネルにおけ
る強電界局チャンネルを複数局（例えば６局）プリセッ
トメモリしておき、それらの局のなかから選局する方法
もある。2. Description of the Related Art In conventional channel selection devices such as television receivers and radio receivers, a method for selecting a station having a strong electric field strength is as follows.
How to increase or decrease the reception channel one station at a time,
Alternatively, a method of automatically searching for a channel in which an electric field strength of a certain level or higher is obtained is generally used. Also,
There is also a method of performing up / down or auto-search for all the reception channels one by one, presetting a plurality of strong electric field station channels in those reception channels (for example, 6 stations), and selecting from those stations. is there.
発明が解決しようとする課題 ところが、自動車のような移動体にあっては、走行地域
が変わる毎に、電界強度の強い局も変化するため、移動
する都度、アップ／ダウンサーチあるいはオートサーチ
により電界強度の強い局をサーチするという操作が必要
となる。その結果、希望する局の選局に時間がかかり特
に、運転中には、目または耳の集中力が長い時間、運転
操作から奪われ易くなるという問題点があった。また、
チャンネルプリセットによる選局方法では希望の放送内
容の受信ができないという不都合もまま発生していた。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in a moving body such as an automobile, a station having a strong electric field strength changes every time the traveling area changes. It is necessary to perform an operation of searching for a strong station. As a result, there is a problem that it takes time to select a desired station, and in particular, during driving, the concentration of eyes or ears is easily lost from the driving operation for a long time. Also,
With the channel presetting method using channel presets, there was still the inconvenience that the desired broadcast content could not be received.
本発明は上記問題点を解決するもので、選局操作が容易
で、かつ受信者の多岐にわたる嗜好に対応できる選局装
置を提供することを目的とする。The present invention solves the above problems, and an object of the present invention is to provide a channel selection device which can easily perform channel selection operation and can cope with a wide variety of tastes of a receiver.
課題を解決するための手段 本発明は、上記問題点を解決するために、放送信号を選
局する選局手段と、選局された放送信号の受信電界強度
を検出する電界強度検出手段と、この電界強度検出手段
によって検出した全放送チャンネルの電界強度を示すデ
ータを全て記憶する記憶手段と、電界強度設定指令信号
にもとづいて全放送チャンネルを順次選局させるように
前記選局手段を駆動制御するとともに、電界強度を示す
データを記憶手段に記憶させ、かつ選局信号にもとづい
て記憶された各局の電界強度を読出し強電界局を選択し
て選局するように前記選局手段を駆動制御する制御手段
とから構成されるものである。Means for Solving the Problems The present invention, in order to solve the above problems, a tuning means for tuning a broadcast signal, and an electric field strength detecting means for detecting a received electric field strength of the selected broadcast signal, Storage means for storing all data indicating electric field strengths of all broadcasting channels detected by the electric field strength detecting means, and drive control of the tuning means so as to sequentially select all broadcasting channels based on the electric field strength setting command signal. At the same time, the data indicating the electric field strength is stored in the storage means, and the electric field strength of each station is read out based on the tuning signal to drive the tuning means so that the strong electric field station is selected and selected. And a control means for controlling.
作用 上記した構成によって、車で移動し地域が変わっても、
一旦全局サーチし各局の電界強度データをメモリしてお
くために、電界強度の強い局を選択して選局することが
できる。また、メモリする局数に従来のようなプリセッ
ト選局のように限りがなく、所定レベル以上の電界強度
の放送局のなかから希望の放送内容の局を所定の電界強
度以上で容易に選局できる。With the above configuration, even if you move by car and the area changes,
Since all stations are searched once and the electric field strength data of each station is stored in memory, a station having a strong electric field strength can be selected and selected. In addition, the number of stations to be stored is not limited as in the conventional preset tuning, and it is easy to select a station with the desired broadcast content from a broadcasting station with a predetermined level or higher of electric field strength at a predetermined electric field strength or higher. it can.
実施例 以下、本発明の一実施例の選局装置について図面を参照
しながら説明する。第１図は本発明における載置用テレ
ビジョン受信機の選局装置のブロック図である。Embodiment Hereinafter, a channel selection device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a channel selection device of a television receiver for mounting according to the present invention.
第１図において、１は選局操作部、２はディスプレイ、
３は表示制御装置、４はTVチューナ、５は選局制御装
置、６はメモリ、７はアンテナである。In FIG. 1, 1 is a tuning operation unit, 2 is a display,
3 is a display control device, 4 is a TV tuner, 5 is a channel selection control device, 6 is a memory, and 7 is an antenna.
以上のように構成された選局装置について以下第１図な
いし第３図を用いてその動作を説明する。The operation of the channel selecting device configured as described above will be described below with reference to FIGS. 1 to 3.
まず、選局操作部１の選局キー８が押されると、キー信
号ｂが出力され、選局制御装置５にその選局開始情報が
伝達される（ステップ１）。選局キー８が２秒以上押さ
れ続けると（ステップ２）全局順次サーチによる電界強
度のメモリ処理を開始する（ステップ３）。つまり、ま
ず、選局制御装置５において、キー信号ｂが継続的に入
力され、選局キー８が２秒以上押されていると判断され
ると、選局制御信号ｅがTVチューナ４に出力される。TV
チューナ４においては、まず1chが選局される。TVチュ
ーナ４は、アンテナ７よりRF信号ｉを取込んでおり、1c
hの受像信号ｃを表示制御装置３に出力するとともに、
選局制御装置５に、1chの電界強度データｆを出力す
る。選局制御装置５は、データ書込み信号ｈによりメモ
リ６に、1chの電界強度データを書込むとともに、第３
図A,Bに示すように、電界強度の「強」，「弱」をある
スレシュホールドレベルを基準として色分けして、電界
強度の強弱を示すチャンネル表示信号ｄを表示制御装置
３に出力する。表示制御装置３は、映像信号ａを介し
て、TVチューナ４からの1chのTV受像信号ｃと選局制御
装置５からのチャンネル表示信号ｄを重畳した第３図に
示すような画面をディスプレイ２に表示する。このとき
電界強度に応じて放送チャンネルの表示形態は色分けさ
れる。以上のような一連の動作を1chから62chまでくり
返し全局の電界強度をメモリ６に書込む。なお、この選
局メモリ動作は自動的に順次実行されるので、車を運転
するものの注意力を散漫にさせることはない。書込み完
了後は、第３図に示すように、サーチ前の受信局を選局
する（ステップ４）。First, when the tuning key 8 of the tuning operation unit 1 is pressed, the key signal b is output and the tuning start information is transmitted to the tuning control device 5 (step 1). When the tuning key 8 is continuously pressed for 2 seconds or more (step 2), the memory processing of the electric field strength by the all-station sequential search is started (step 3). That is, first, in the tuning control device 5, when it is determined that the key signal b is continuously input and the tuning key 8 is pressed for 2 seconds or more, the tuning control signal e is output to the TV tuner 4. To be done. TV
In the tuner 4, 1ch is selected first. The TV tuner 4 captures the RF signal i from the antenna 7,
While outputting the image reception signal c of h to the display control device 3,
The field intensity data f of 1ch is output to the tuning control device 5. The tuning control device 5 writes the field intensity data of 1ch to the memory 6 by the data write signal h, and
As shown in FIGS. A and B, “strong” and “weak” of the electric field intensity are color-coded with a certain threshold level as a reference, and a channel display signal d indicating the intensity of the electric field intensity is output to the display control device 3. The display control device 3 displays the screen as shown in FIG. 3 in which the 1-channel TV image receiving signal c from the TV tuner 4 and the channel display signal d from the channel selection control device 5 are superimposed on each other via the video signal a. To display. At this time, the display form of the broadcast channel is color-coded according to the electric field strength. The above series of operations is repeated from 1ch to 62ch and the electric field strength of all stations is written in the memory 6. Since this tuning memory operation is automatically executed in sequence, it does not distract the driver who drives the vehicle. After the writing is completed, as shown in FIG. 3, the receiving station before the search is selected (step 4).
次に、選局キー８が２秒未満で放された時には、（ステ
ップ２）強電界局の読出し選局を行う（ステップ５）。
すなわち、選局制御装置５にキー信号ｂが２秒未満の期
間だけ入力されると、選局キー８が２秒未満で放された
と判断され、メモリ６にデータ読出し指令信号が入力さ
れ、メモリ６より全局の電界強度データｇを読出すとと
もに、選局制御信号ｅをTVチューナ４に出力し、現在の
選局チャンネルとは異なるチャンネルの所定レベル以上
の電界強度を有する強電界局を選局する。例えば、強電
界局が1ch,8ch,12ch,54chの４局あり、現在8ch受信中で
あれば12chを、12ch受信中であれば54chを選局する。つ
まり、チャンネル番号で上位側の強電界局を選局する。Next, when the tuning key 8 is released in less than 2 seconds (step 2), the reading station of the strong electric field station is selected (step 5).
That is, when the key signal b is input to the tuning control device 5 for a period of less than 2 seconds, it is determined that the tuning key 8 has been released in less than 2 seconds, and a data read command signal is input to the memory 6, 6, the electric field intensity data g of all stations is read out, and a tuning control signal e is output to the TV tuner 4 to select a strong electric field station having an electric field intensity of a predetermined level or more of a channel different from the currently selected channel. To do. For example, there are four strong electric field stations, 1ch, 8ch, 12ch, and 54ch. If 8ch is currently being received, 12ch is selected, and if 12ch is being received, 54ch is selected. That is, the higher strong electric field station is selected by the channel number.
発明の効果 本発明によれば車で移動して地域が変わっても全局のサ
ーチによる電界強度の記憶を行うために、プリセット選
局に比べて多数の強電界局の読出し選局が可能であり、
運転者が確実に希望の放送内容の局を所定の電界強度以
上で受信できることになり、運転者の選局による集中力
の散漫をまねくことがなく車載用の受信装置として重要
な安全性を確保できる。EFFECTS OF THE INVENTION According to the present invention, since the electric field strength is stored by searching all the stations even if the area is changed by moving by car, it is possible to read and select a large number of strong electric field stations as compared with the preset channel selection. ,
The driver will be able to reliably receive the station with the desired broadcast content with a predetermined electric field strength or higher, and the important safety as an in-vehicle receiving device will be secured without the concentration of driver being distracted. it can.
第１図は本発明の一実施例における車載用テレビジョン
装置の選局装置のブロック図、第２図は同選局操作フロ
ーチャート、第３図A,Bは同テレビジョン装置のチャン
ネル表示画面を示す平面図である。 １……選局操作部、２……ディスプレイ、３……表示制
御装置、４……TVチューナ、５……選局制御装置、６…
…メモリ、７……アンテナ、８……選局キー。FIG. 1 is a block diagram of a channel selection device of a vehicle-mounted television device according to an embodiment of the present invention, FIG. 2 is a flowchart of the channel selection operation, and FIGS. 3A and 3B are channel display screens of the television device. It is a top view shown. 1 ... Tuning operation part, 2 ... Display, 3 ... Display control device, 4 ... TV tuner, 5 ... Tuning control device, 6 ...
... memory, 7 ... antenna, 8 ... tuning key.
フロントページの続き (56)参考文献 特開 昭60−192414（ＪＰ，Ａ) 特開 昭60−254910（ＪＰ，Ａ) 実開 昭59−81140（ＪＰ，Ｕ) 実開 昭60−119151（ＪＰ，Ｕ) 実開 昭58−173931（ＪＰ，Ｕ) 実開 昭54−113318（ＪＰ，Ｕ)Continuation of the front page (56) Reference JP-A-60-192414 (JP, A) JP-A-60-254910 (JP, A) Actually opened 59-81140 (JP, U) Actually opened 60-119151 (JP , U) Actually open 58-173931 (JP, U) Actually open 54-113318 (JP, U)
Claims (2)
る選局手段と、選局された放送信号の受信電界強度を検
出する電界強度検出手段と、この電界強度検出手段によ
って検出した全放送局の電界強度を示すデータを記憶す
る記憶手段と、電界強度検出指令信号にもとづいて全放
送チャンネルを順次選局させるように前記選局手段を駆
動制御するとともに、電界強度を示すデータを記憶手段
に記憶させ、かつ選局信号にもとづいて記憶された各局
の電界強度を読出し強電界局を選局して選局中の局とは
異なる局を順次選局する手段と、上記選局スイッチ操作
ですべての強電界局を記憶かつ読出しできるよう前記選
局手段を駆動制御する制御手段とを備えたことを特徴と
する選局装置。1. A tuning switch, a tuning means for tuning a broadcast signal, an electric field strength detecting means for detecting a received electric field strength of the selected broadcasting signal, and an electric field strength detecting means for detecting the electric field strength. Storage means for storing data indicating the electric field strength of all broadcasting stations, and driving control of the tuning means so as to sequentially select all broadcasting channels based on the electric field strength detection command signal, and data indicating the electric field strength. Is stored in the storage means, and the stored electric field strength of each station is read out based on the tuning signal, and the strong electric field station is tuned in to sequentially select stations different from the station being selected; A tuning device comprising: a control means for driving and controlling the tuning means so that all the strong electric field stations can be stored and read by operating a station switch.
と順次放送局をサーチし、電界強度の強い局をメモリす
るとともに、一定時間以下選局スイッチをONした時は、
メモリされた電界強度の強い局を順次呼び出し選局する
特許請求の範囲第１項記載の選局装置。2. When the tuning switch is turned on for a certain period of time or more, the broadcasting stations are sequentially searched, the station having a strong electric field strength is memorized, and when the tuning switch is turned on for a certain period or less,
The station selection device according to claim 1, wherein the stations having strong electric field strengths stored in the memory are sequentially called and selected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63106433A JPH0748641B2 (en) | 1988-04-28 | 1988-04-28 | Tuning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63106433A JPH0748641B2 (en) | 1988-04-28 | 1988-04-28 | Tuning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01276914A JPH01276914A (en) | 1989-11-07 |
| JPH0748641B2 true JPH0748641B2 (en) | 1995-05-24 |
Family
ID=14433518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63106433A Expired - Lifetime JPH0748641B2 (en) | 1988-04-28 | 1988-04-28 | Tuning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0748641B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MXPA01012671A (en) * | 1999-06-16 | 2002-06-04 | Thomson Licensing Sa | Real-time signal strength display of terrestrial digital television signals. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5981140U (en) * | 1982-11-20 | 1984-06-01 | アルパイン株式会社 | radio receiver |
| JPS60119151U (en) * | 1984-01-23 | 1985-08-12 | パイオニア株式会社 | receiving device |
| JPS60192414A (en) * | 1984-03-14 | 1985-09-30 | Hitachi Ltd | How to recall broadcast stations from memory |
| JPS60254910A (en) * | 1984-05-31 | 1985-12-16 | Nec Ic Microcomput Syst Ltd | Automatic storage system for reception frequency |
-
1988
- 1988-04-28 JP JP63106433A patent/JPH0748641B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01276914A (en) | 1989-11-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |