JPH0556367A - Television receiver - Google Patents

Television receiver

Info

Publication number
JPH0556367A
JPH0556367A JP3210753A JP21075391A JPH0556367A JP H0556367 A JPH0556367 A JP H0556367A JP 3210753 A JP3210753 A JP 3210753A JP 21075391 A JP21075391 A JP 21075391A JP H0556367 A JPH0556367 A JP H0556367A
Authority
JP
Japan
Prior art keywords
tuner
television receiver
signal
circuit
channel
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
JP3210753A
Other languages
Japanese (ja)
Inventor
Yoshiaki Ebine
喜昭 海老根
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.)
Fujitsu General Ltd
Original Assignee
Fujitsu General Ltd
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 Fujitsu General Ltd filed Critical Fujitsu General Ltd
Priority to JP3210753A priority Critical patent/JPH0556367A/en
Publication of JPH0556367A publication Critical patent/JPH0556367A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To display the picture of character broadcasting, etc., via a second tuner on a screen by a superimpose, etc., by providing a television receiver with this detachable type second tuner. CONSTITUTION:A broadcasting signal from an antenna 2 distributed by a distributor 1 is demodulated to a video signal via a tuner (main) 3 and an IF amplifier/ detector circuit 4, and is displayed on the screen of a receiver via a video signal processing circuit 5. The other signals distributed by the distributor 1 are inputted in an detachable type tuner part 6 set so that only the designated channel may be received, are converted into video intermediate frequency signals and are demodulated to video signals via an IF amplifier/detector circuit 10. By a signal processing in the video signal processing circuit 5, the character broadcasting signal, etc., are extracted and a superimpose display, etc., of the pictures of the character broadcasting, etc., are displayed on the screen of the receiver.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はテレビジョン受像機に係
り、受像中のチャンネルと異なるチャンネルの文字放送
等を画面にスーパーインポーズ等で表示するものに関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver, and more particularly to a television receiver for displaying a character broadcast or the like on a channel different from that being received on the screen by superimposing or the like.

【0002】[0002]

【従来の技術】テレビジョン放送番組を受像中のテレビ
ジョン受像機の画面に受信中のチャンネルと異なるチャ
ンネルで放送中の文字放送等の画像をスーパーインポー
ズ等で表示するためには、2つのチャンネルを同時に受
信せねばならないためテレビジョン受像機の内部に2つ
のチューナを搭載するか、若しくは外部信号入力端子を
設けて他のテレビジョン受像機等で受信した文字放送等
のための信号を入力しなければならない。チューナを2
つ搭載してある場合は外部接続の必要はないが、安価と
は言えないチューナを2つ搭載することによるテレビジ
ョン受像機のコストアップの問題があり、一方、外部信
号入力端子に他の機器よりの信号を接続するためには煩
わしい接続作業が必要になる。
2. Description of the Related Art In order to display an image such as a character broadcast being broadcast on a channel different from the channel being received on the screen of a television receiver receiving a television broadcast program by superimposing, etc. Since two channels must be received at the same time, two tuners are installed inside the television receiver, or an external signal input terminal is provided to input the signal for teletext etc. received by another television receiver. Must. 2 tuners
If there are two tuners, there is no need for external connection, but there is a problem of cost increase of the television receiver by installing two tuners that are not cheap, while on the other hand, other equipment is connected to the external signal input terminal. A complicated connection work is required to connect the signal.

【0003】[0003]

【発明が解決しようとする課題】本発明はこのような点
に鑑みなされたもので、指定のチャンネルを受信するよ
うに設定された単局受信用のチューナ部を受像機と別個
に設け、受像機は前記チューナ部の挿着が可能なるよう
に構成し、これにより、所要のチャンネル受信用のチュ
ーナ部を受像機に挿着すれば、当該チューナ部を介し受
信された文字放送等を受像機の画面にスーパーインポー
ズ等で表示可能とするテレビジョン受像機を提供するも
のである。
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a tuner unit for single-station reception, which is set to receive a designated channel, is provided separately from a receiver. The tuner is configured so that the tuner section can be inserted and inserted, so that if a tuner section for receiving a desired channel is inserted into the receiver, a character broadcast or the like received through the tuner section can be received. The present invention provides a television receiver that can be displayed on the screen of, for example, by superimposing.

【0004】[0004]

【課題を解決するための手段】本発明は上述の点に鑑み
なされたもので、第1の画像の表示画面に第2の画像を
スーパーインポーズ等で表示する機能を有するテレビジ
ョン受像機において、前記第2の画像のためのテレビジ
ョン放送の受信を行うチューナ部を放送チャンネル別に
設け、前記チューナ部をチューナ挿着部を介しテレビジ
ョン受像機に着脱可能なるように構成したテレビジョン
受像機を提供するものである。
SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and provides a television receiver having a function of displaying a second image on a display screen of a first image by superimposing or the like. A television receiver in which a tuner unit for receiving a television broadcast for the second image is provided for each broadcast channel, and the tuner unit is detachably attached to the television receiver via a tuner insertion unit. Is provided.

【0005】[0005]

【作用】以上のように構成したので、本発明によるテレ
ビジョン受像機においては、テレビジョン放送の受像時
に、所要の文字放送のチャンネルに相応するチューナ部
をテレビジョン受像機に挿着し、文字放送の画像表示の
ための所要の操作を行えば、受像中の映像のチャンネル
と異なるチャンネルの文字放送の画像をスーパーインポ
ーズ等で表示することができる。
With the above construction, in the television receiver according to the present invention, at the time of receiving the television broadcast, the tuner portion corresponding to the desired character broadcasting channel is inserted into the television receiver to allow the characters to be displayed. By performing a required operation for displaying the image of the broadcast, it is possible to display the image of the teletext of a channel different from the channel of the video being received by superimposing or the like.

【0006】[0006]

【実施例】以下、図面に基づいて本発明によるテレビジ
ョン受像機の実施例を詳細に説明する。図1は本発明に
よるテレビジョン受像機の一実施例の要部ブロック図で
ある。図において、1は分配器で、テレビジョン放送受
信用のアンテナ2よりのテレビジョン信号を分配する。
3はチューナで、分配器1よりのテレビジョン信号の所
要チャンネルの周波数に同調し、映像中間周波(IF)
信号に変換する。4はIF増幅・検波回路で、チューナ
3よりの映像中間周波信号を所要のレベルに増幅し、検
波を行い映像信号等を出力する。5は映像信号処理回路
で、映像信号による画像を画面に表示するための信号処
理を行う。6はチューナ部で、テレビジョンの放送チャ
ンネル別に設けられ、受像機に挿着しソケット等を介し
所要の回路に接続する。7はRF増幅回路でチューナ部
6に内蔵され、所要の放送チャンネルに同調し適宜の信
号レベルに増幅する。8は混合回路で、RF増幅回路7
よりの信号および局部発振回路9よりの局部発振信号の
差の映像中間周波信号を出力する。10はIF増幅・検波
回路で、混合回路8よりの映像中間周波信号を適宜のレ
ベルに増幅し、検波を行い映像信号等を出力する。この
映像信号は前記映像信号処理回路5に入力し、文字放送
表示のための信号処理が行われる。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a television receiver according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram of essential parts of an embodiment of a television receiver according to the present invention. In the figure, 1 is a distributor, which distributes a television signal from an antenna 2 for receiving a television broadcast.
Reference numeral 3 is a tuner, which is tuned to the frequency of the required channel of the television signal from the distributor 1, and which is a video intermediate frequency (IF)
Convert to signal. An IF amplification / detection circuit 4 amplifies the video intermediate frequency signal from the tuner 3 to a required level, performs detection, and outputs a video signal and the like. A video signal processing circuit 5 performs signal processing for displaying an image by the video signal on the screen. Reference numeral 6 denotes a tuner unit, which is provided for each television broadcasting channel, is inserted into a receiver and connected to a required circuit through a socket or the like. Reference numeral 7 denotes an RF amplifier circuit which is built in the tuner unit 6 and which tunes to a required broadcast channel and amplifies it to an appropriate signal level. 8 is a mixing circuit, which is an RF amplification circuit 7
Signal and a local oscillation signal from the local oscillation circuit 9 are output as a video intermediate frequency signal. An IF amplification / detection circuit 10 amplifies the video intermediate frequency signal from the mixing circuit 8 to an appropriate level, performs detection, and outputs a video signal or the like. This video signal is input to the video signal processing circuit 5 and subjected to signal processing for displaying teletext.

【0007】図2は本発明によるテレビジョン受像機の
他の実施例の要部ブロック図である。図において、11は
カード状に構成された制御部で、テレビジョンの放送チ
ャンネル別に設けられ、受像機に挿着することでソケッ
ト等を介し局部発振回路9に接続され、局部発振回路9
の発振周波数の制御、RF増幅回路7および混合回路8
の同調周波数の制御等を行う。12は分周回路で制御部11
に内蔵され、局部発振回路9で発振される信号の周波数
の分周を行う。13は発振回路で、基準周波数の信号を発
振する。14は位相比較回路で、分周回路12よりの信号お
よび発振回路13よりの信号の位相を比較し位相差に相応
する信号を出力する。15はLPF(ローパスフィルタ)
で、位相比較回路14よりの信号に含まれる高い周波数の
成分をカットする。16は基準電圧回路で、RF増幅回路
7および混合回路8を当該チャンネル周波数に同調させ
るための電圧を発生する。その他の符号は図1と同じで
あるので説明を省く。
FIG. 2 is a block diagram of the essential parts of another embodiment of the television receiver according to the present invention. In the figure, reference numeral 11 is a card-shaped control unit, which is provided for each television broadcast channel, and is connected to the local oscillation circuit 9 through a socket or the like by being inserted into a receiver and the local oscillation circuit 9
Of oscillation frequency of RF amplifier circuit 7 and RF mixer circuit 8
Controls the tuning frequency of. 12 is a frequency divider circuit 11
And frequency-divides the frequency of the signal oscillated by the local oscillation circuit 9. An oscillation circuit 13 oscillates a signal of a reference frequency. Reference numeral 14 is a phase comparison circuit, which compares the phases of the signal from the frequency dividing circuit 12 and the signal from the oscillation circuit 13 and outputs a signal corresponding to the phase difference. 15 is LPF (low pass filter)
Then, the high frequency components included in the signal from the phase comparison circuit 14 are cut. A reference voltage circuit 16 generates a voltage for tuning the RF amplifier circuit 7 and the mixing circuit 8 to the channel frequency. The other reference numerals are the same as those in FIG.

【0008】次に、本発明によるテレビジョン受像機の
動作を説明する。まず、図1の場合、テレビジョン放送
受信用のアンテナ2よりの信号は分配器1で2分配さ
れ、一方はチューナ3に入力する。そして、テレビジョ
ン受像機の選局操作で指定されたチャンネルの周波数に
同調し、適宜の信号レベルに増幅し、局部発振回路より
の信号との差の周波数の中間周波信号を出力する。この
信号はIF増幅・検波回路4に入力し、同調および適宜
のレベル増幅が行われ、検波されて映像信号等となり、
映像信号処理回路5に入力する。他方、前記分配器1で
分配されたもう1つの信号はテレビジョン受像機に挿着
されたチューナ部6に入力する。このチューナ部6は指
定チャンネルのテレビジョン放送を受信するためチャン
ネル別に設けられ、例えば、図3の如くテレビジョン受
像機21等に設けられたチューナ挿着部22に矢印イのよう
に挿着する。これにより、分配器1よりの信号はチュー
ナ部6に入力し、RF増幅回路7で同調および所要の信
号レベルに増幅され、混合回路8に入力し、局部発振回
路9よりの信号とで2つの周波数の差の周波数の中間周
波信号となり出力する。この信号はIF増幅・検波回路
10に入力し、同調および適宜のレベル増幅を行い、検波
して映像信号とし、前記映像信号処理回路5に入力す
る。映像信号処理回路5は前記IF増幅・検波回路4よ
りの映像信号の画像を画面に表示するための処理を行う
と共に、IF増幅・検波回路10よりの映像信号の垂直帰
線期間で搬送される文字放送等の信号を分離し、テレビ
ジョン受像機の画面にスーパーインポーズ表示等を行う
ための信号処理を行う。なお、チューナ部6の各回路お
よびIF増幅・検波回路10は垂直帰線期間で搬送される
文字放送の信号を取り出すためのものであるから、画像
表示用の映像信号を得るためのチューナ3およびIF増
幅・検波回路4に比べて狭い周波数帯域の信号を増幅・
検波すればよいので、周波数帯域を狭くし1段当たりの
増幅度を大きくする等により、比較的簡単な回路で構成
することができる。
Next, the operation of the television receiver according to the present invention will be described. First, in the case of FIG. 1, the signal from the antenna 2 for receiving the television broadcast is divided into two by the distributor 1, and one of them is input to the tuner 3. Then, it tunes to the frequency of the channel designated by the channel selection operation of the television receiver, amplifies it to an appropriate signal level, and outputs an intermediate frequency signal having a frequency difference from the signal from the local oscillation circuit. This signal is input to the IF amplification / detection circuit 4, is tuned and appropriately level-amplified, and is detected to be a video signal,
It is input to the video signal processing circuit 5. On the other hand, the other signal distributed by the distributor 1 is input to the tuner unit 6 inserted in the television receiver. The tuner unit 6 is provided for each channel to receive the television broadcast of the designated channel, and is inserted into the tuner insertion unit 22 provided in the television receiver 21 or the like as shown in FIG. .. As a result, the signal from the distributor 1 is input to the tuner unit 6, is tuned by the RF amplifier circuit 7 and amplified to a required signal level, is input to the mixing circuit 8, and is supplied to the signal from the local oscillator circuit 9. It becomes an intermediate frequency signal of the frequency of the frequency difference and outputs. This signal is an IF amplification / detection circuit
The signal is input to 10, subjected to tuning and appropriate level amplification, detected to form a video signal, and input to the video signal processing circuit 5. The video signal processing circuit 5 performs processing for displaying an image of the video signal from the IF amplification / detection circuit 4 on the screen, and is carried in the vertical blanking period of the video signal from the IF amplification / detection circuit 10. Signals such as teletext are separated, and signal processing is performed for superimposing display on the screen of the television receiver. Since each circuit of the tuner section 6 and the IF amplification / detection circuit 10 are for extracting a teletext signal carried in the vertical blanking period, the tuner 3 and the tuner for obtaining a video signal for image display are provided. Amplifies signals in a narrower frequency band than the IF amplification / detection circuit 4.
Since detection is sufficient, a relatively simple circuit can be constructed by narrowing the frequency band and increasing the degree of amplification per stage.

【0009】図2の場合、RF増幅回路7、混合回路8
および局部発振回路9等はテレビジョン受像機に内蔵さ
れている。これらRF増幅回路7および混合回路8の同
調周波数、および局部発振回路9の発振周波数は、カー
ド状に構成された制御部11よりの信号に基づき制御され
る。すなわち、制御部11に内蔵される発振回路13は、例
えば、水晶振動子等を用いて安定した周波数の発振を行
うように構成する。そして、局部発振回路9で発振され
る信号を分周回路12で設定の分周比で分周し、位相検波
回路14に入力し、前記発振回路13よりの信号との位相の
比較を行い、位相差に応じた信号を出力する。この信号
をLPF15を介し高い周波数成分を除去し、局部発振回
路9に帰還する。これにより、局部発振回路9は制御部
11で設定されたチャンネルに相応する安定した周波数の
局部発振信号を出力する。また、RF増幅回路7および
混合回路8には、これらの回路を指定のチャンネルに同
調させるための電圧が基準電圧回路16より印加される。
このカード状の制御部11を指定の放送チャンネル用のも
のと交換し、図3のテレビジョン受像機21のメモリカー
ド挿着部22に挿着することにより、指定のチャンネルの
文字放送等を他のチャンネルのテレビジョン放送を受像
中の画面にスーパーインポーズ表示等を行うことができ
る。なお、文字放送等の画像のみを画面に表示する場合
にも、指定のチャンネルの前記チューナ部6若しくは制
御部11をテレビジョン受像機に挿着し文字放送を表示す
るための操作を行えばよい。
In the case of FIG. 2, the RF amplifier circuit 7 and the mixing circuit 8
The local oscillator circuit 9 and the like are built in the television receiver. The tuning frequency of the RF amplification circuit 7 and the mixing circuit 8 and the oscillation frequency of the local oscillation circuit 9 are controlled based on a signal from a control unit 11 configured in a card shape. That is, the oscillation circuit 13 built in the control unit 11 is configured to oscillate at a stable frequency by using, for example, a crystal oscillator. Then, the signal oscillated by the local oscillator circuit 9 is frequency-divided by the frequency divider circuit 12 at the set frequency division ratio, input to the phase detection circuit 14, and the phase of the signal from the oscillation circuit 13 is compared. A signal corresponding to the phase difference is output. A high frequency component of this signal is removed through the LPF 15 and is fed back to the local oscillation circuit 9. As a result, the local oscillation circuit 9 becomes
The local oscillation signal of stable frequency corresponding to the channel set in 11 is output. A voltage for tuning these circuits to a designated channel is applied from the reference voltage circuit 16 to the RF amplifier circuit 7 and the mixing circuit 8.
This card-shaped control unit 11 is replaced with that for a designated broadcast channel, and is inserted into the memory card insertion unit 22 of the television receiver 21 shown in FIG. It is possible to perform superimpose display and the like on the screen while receiving the television broadcast of the channel. Even when only images such as teletext are displayed on the screen, the tuner section 6 or the control section 11 of the designated channel may be inserted into the television receiver to perform an operation for displaying teletext. ..

【0010】[0010]

【発明の効果】以上に説明したように、本発明によるテ
レビジョン受像機によれば、テレビジョン放送等を受像
中の画面に他のチャンネルで放送されている文字放送等
の画像をスーパーインポーズ等で表示する場合、希望す
る文字放送のチャンネルのチューナ部若しくはカード状
の制御部をテレビジョン受像機に挿着し、文字放送の表
示のための操作を行うだけでよい。このように、希望す
るチャンネルのチューナ若しくはカードを用いればよい
ものであるから、テレビジョン放送の受像中に煩わしい
選局操作を行う必要がなく、また、受像中のチャンネル
と文字放送のチャンネルを取り違える等の失敗を防止で
きるものであり、チューナを2つ内蔵することによる機
器のコストアップあるいは外部端子に他の機器を接続す
る等の手間を省けるものである。
As described above, according to the television receiver of the present invention, an image such as a character broadcast which is being broadcast on another channel is superimposed on a screen which is receiving a television broadcast or the like. In the case of displaying by the like, it suffices to insert the tuner section or the card-shaped control section of the desired teletext channel into the television receiver and perform the operation for displaying the teletext. In this way, since the tuner or card of the desired channel can be used, it is not necessary to perform a troublesome tuning operation while receiving the television broadcast, and the channel being received and the character broadcast channel are confused. It is possible to prevent failures such as the above, and to increase the cost of the device by incorporating two tuners, and to save the trouble of connecting another device to an external terminal.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明によるテレビジョン受像機の一実施例の
要部ブロック図である。
FIG. 1 is a block diagram of essential parts of an embodiment of a television receiver according to the present invention.

【図2】本発明によるテレビジョン受像機の他の実施例
の要部ブロック図である。
FIG. 2 is a block diagram of a main part of another embodiment of the television receiver according to the present invention.

【図3】本発明によるテレビジョン受像機のチューナ若
しくはカード状の制御部挿着部を示す部分斜視図であ
る。
FIG. 3 is a partial perspective view showing a tuner- or card-shaped control unit insertion portion of the television receiver according to the present invention.

【符号の説明】[Explanation of symbols]

2 アンテナ 3 チューナ 4 IF増幅・検波回路 5 映像信号処理回路 6 チューナ部 10 IF増幅・検波回路 11 制御部 2 antenna 3 tuner 4 IF amplification / detection circuit 5 video signal processing circuit 6 tuner section 10 IF amplification / detection circuit 11 control section

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 第1の画像の表示画面に第2の画像をス
ーパーインポーズ等で表示する機能を有するテレビジョ
ン受像機において、前記第2の画像のためのテレビジョ
ン放送の受信を行うチューナ部を放送チャンネル別に設
け、前記チューナ部をチューナ挿着部を介しテレビジョ
ン受像機に着脱可能なるように構成したことを特徴とす
るテレビジョン受像機。
1. A television receiver having a function of displaying a second image on the display screen of the first image by superimposing or the like, and a tuner for receiving a television broadcast for the second image. A television receiver characterized in that a section is provided for each broadcasting channel, and the tuner section is configured to be attachable to and detachable from the television receiver via the tuner insertion section.
【請求項2】 第1の画像の表示画面に第2の画像をス
ーパーインポーズ等で表示する機能を有するテレビジョ
ン受像機において、前記第2の画像のためのテレビジョ
ン放送の受信を行うチューナ部を内蔵し、前記チューナ
部の同調のための信号を出力するカード状に構成した制
御部を放送チャンネル別に設け、前記カード状の制御部
をカード挿着部を介しテレビジョン受像機に着脱可能な
るように構成したことを特報とするテレビジョン受像
機。
2. A television receiver having a function of displaying a second image on a display screen of the first image by superimposing or the like, and a tuner for receiving a television broadcast for the second image. A control unit that has a built-in unit and outputs a signal for tuning the tuner unit is provided for each broadcast channel, and the card-shaped control unit can be attached to and detached from the television receiver via the card insertion unit. A television receiver that is specially configured to be.
JP3210753A 1991-08-22 1991-08-22 Television receiver Pending JPH0556367A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3210753A JPH0556367A (en) 1991-08-22 1991-08-22 Television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3210753A JPH0556367A (en) 1991-08-22 1991-08-22 Television receiver

Publications (1)

Publication Number Publication Date
JPH0556367A true JPH0556367A (en) 1993-03-05

Family

ID=16594559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3210753A Pending JPH0556367A (en) 1991-08-22 1991-08-22 Television receiver

Country Status (1)

Country Link
JP (1) JPH0556367A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008236773A (en) * 1996-01-24 2008-10-02 Frederick R Guy Remote learning system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008236773A (en) * 1996-01-24 2008-10-02 Frederick R Guy Remote learning system

Similar Documents

Publication Publication Date Title
KR960003874B1 (en) Television receiver with a dual tuner
US5321852A (en) Circuit and method for converting a radio frequency signal into a baseband signal
KR100449116B1 (en) Video signal processing apparatus
JPH1023377A (en) Text data processor using television receiver
JPH0993152A (en) Double conversion television tuner
KR101067774B1 (en) Broadcasting receiver and method for controlling tuner thereof
US20040207476A1 (en) PLL circuit and television receiver having same and beat reducing method for television receiver
JPH09172584A (en) Sif signal processing circuit
US6353462B1 (en) Television signal and FM broadcast signal demodulator and television signal and FM broadcast signal receiver
JPH0556367A (en) Television receiver
US5644368A (en) Composite signal detecting apparatus having associated filter
US20020030763A1 (en) Receiver
US6791627B2 (en) Television signal receiver
KR0153964B1 (en) Common receiver of a tv
KR0141220B1 (en) Circuit for receiving television signal in vtr
KR0178318B1 (en) Multi-auto tunning system for ntsc
JP2000059706A (en) Channel selection system for television receiver
JPH0715216Y2 (en) PLL tuning device
KR0157553B1 (en) Channel password apparatus by using the pip function
US7466366B2 (en) TV tuner providing FM radio reception
KR0134265B1 (en) Tunner of the satellite and cable broadcasting
KR0141122B1 (en) Apparatus for demodulation of image and sound
JPH0865585A (en) Receiver
JPH10233972A (en) Receiver
JPH05176327A (en) Tuner