JPS6115658Y2 - - Google Patents
Info
- Publication number
- JPS6115658Y2 JPS6115658Y2 JP11498181U JP11498181U JPS6115658Y2 JP S6115658 Y2 JPS6115658 Y2 JP S6115658Y2 JP 11498181 U JP11498181 U JP 11498181U JP 11498181 U JP11498181 U JP 11498181U JP S6115658 Y2 JPS6115658 Y2 JP S6115658Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- earphone jack
- audio
- present
- 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
Links
- 230000005236 sound signal Effects 0.000 claims description 6
- 230000003321 amplification Effects 0.000 description 7
- 238000003199 nucleic acid amplification method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
- Television Receiver Circuits (AREA)
Description
【考案の詳細な説明】
本考案は外部に電源を容易に取出すことができ
るテレビジヨン受像機に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a television receiver whose power source can be easily taken out to the outside.
最近の電気機器は多機能化され、機器本体のみ
ならず、外部の附属機器にも電源を供給する必要
性が多くなつてきた。 Recent electrical equipment has become multi-functional, and there is an increasing need to supply power not only to the equipment itself, but also to external auxiliary equipment.
そこで本考案ではイヤホンジヤツクから音声出
力だけでなく電源電圧をも容易に取出すことがで
きるテレビジヨン受像機を提供するものである。 Therefore, the present invention provides a television receiver from which not only the audio output but also the power supply voltage can be easily extracted from the earphone jack.
以下図面に示す実施例に従つて本考案を説明す
る。第１図は本考案の１実施例のブロツク線図を
示し、ここで１はアンテナ、２はチユーナ、３は
映像中間周波回路、４は映像検波回路、５は映像
増幅回路、２４はブラウン管、６は音声中間周波
回路、７は音声検波回路、８は音声増幅回路、９
は同期分離回路、１０は垂直偏向回路、１１は水
平偏向回路、１２はイヤホンジヤツク、１３はス
ピーカであり、これらによつて通常一般のテレビ
ジヨン受像機が構成されている。 The present invention will be explained below according to embodiments shown in the drawings. FIG. 1 shows a block diagram of one embodiment of the present invention, where 1 is an antenna, 2 is a tuner, 3 is a video intermediate frequency circuit, 4 is a video detection circuit, 5 is a video amplification circuit, 24 is a cathode ray tube, 6 is an audio intermediate frequency circuit, 7 is an audio detection circuit, 8 is an audio amplification circuit, 9
10 is a synchronization separation circuit, 10 is a vertical deflection circuit, 11 is a horizontal deflection circuit, 12 is an earphone jack, and 13 is a speaker, which usually constitute a general television receiver.
本考案ではこのような一般のテレビジヨン受像
機にさらに２逓倍回路１４と２つの2fHトラツプ
回路１５，１６を加えて構成したものであり、特
にここでは水平偏向回路１１より得られる水平パ
ルスを２逓倍回路１４にて２逓倍し、この２逓倍
した信号を音声増幅回路８より得られるテレビジ
ヨン音声信号に重畳してイヤホンジヤツク１２に
供給している。そしてまたこの２逓倍信号が音声
増幅回路８及びスピーカ１３に影響を及ぼさない
ように2fHトラツプ回路１５，１６を挿入してい
る。 The present invention is constructed by adding a doubler circuit 14 and two 2f H trap circuits 15 and 16 to such a general television receiver, and in particular, the horizontal pulses obtained from the horizontal deflection circuit 11 are A doubling circuit 14 doubles the signal, and the doubled signal is superimposed on the television audio signal obtained from the audio amplification circuit 8 and supplied to the earphone jack 12. Furthermore, 2f H trap circuits 15 and 16 are inserted so that this doubled signal does not affect the audio amplification circuit 8 and the speaker 13.
従つて、この場合音声増幅回路８より得られる
音声信号2fH（但しｆHは水平走査周波数）なる周
波数よりも十分低い周波数であるため、該音声信
号は2fHトラツプ回路１５を介してイヤホンジヤ
ツク１２に供給されるとともにさらに2fHトラツ
プ回路１６を介してスピーカ１３に供給され、ス
ピーカ１３から通常のテレビジヨン音声が放声さ
れる。一方２逓倍回路１４より得られる2fHなる
周波数の信号は各トラツプ回路１５，１６にて音
声増幅回路８及びスピーカ１３への供給が阻止さ
れ、イヤホンジヤツク１２だけに供給されてい
る。 Therefore, in this case, since the frequency is sufficiently lower than the frequency of the audio signal 2f H (where f H is the horizontal scanning frequency) obtained from the audio amplification circuit 8, the audio signal is sent to the earphone via the 2f H trap circuit 15. The signal is supplied to the socket 12 and further supplied to the speaker 13 via the 2fH trap circuit 16, from which the normal television sound is emitted. On the other hand, the signal of frequency 2f H obtained from the doubler circuit 14 is blocked from being supplied to the audio amplification circuit 8 and the speaker 13 by trap circuits 15 and 16, and is supplied only to the earphone jack 12.
ここで上記イヤホンジヤツク１２に通常のイヤ
ホンプラグを差込めば、2fHの周波数信号は可聴
周波数よりも高く人間の耳には聞こえないため、
イヤホンではテレビジヨン音声のみを聴取するこ
とができる。 If you insert a regular earphone plug into the earphone jack 12, the 2f H frequency signal will be higher than the audible frequency and cannot be heard by human ears.
You can only listen to television audio through earphones.
次に上記イヤホンジヤツク１２に例えばワイヤ
レスイヤホンとして利用される第２図に示すよう
な構成のFM送信機のプラグ１７を差込めば、こ
のとき2fHの周波数信号が2fHの共振回路１８を介
して取出され、これがダイオード１９及びコンデ
ンサ２０によつて整流平滑され、こうして得られ
る直流電圧が電源電圧としてFM変調器２１に供
給される。一方またマツチングトランス２２を介
して得られる音声信号はFM変調器２１に供給さ
れてFM変調され、アンテナ２３より放射され
る。従つてこの場合受像機から離れた場所でFM
ラジオ受信機を用いてテレビジヨン音声を聞くこ
とが可能となる。 Next, if the plug 17 of an FM transmitter configured as shown in FIG. 2, which is used as a wireless earphone, is inserted into the earphone jack 12, the 2f H frequency signal will transmit the 2f H resonant circuit 18. This is rectified and smoothed by a diode 19 and a capacitor 20, and the DC voltage thus obtained is supplied to the FM modulator 21 as a power supply voltage. On the other hand, the audio signal obtained via the matching transformer 22 is also supplied to the FM modulator 21 where it is FM modulated and radiated from the antenna 23. Therefore, in this case, FM is transmitted at a location far from the receiver.
It becomes possible to listen to television audio using a radio receiver.
上記実施例ではイヤホンジヤツク１２に導出さ
れた2fHの信号をワイヤレスイヤホンの電源とし
て使用する場合について述べたが、本考案は他に
もリモコン送信機の充電用電源等、種々の目的に
利用することができる。 In the above embodiment, a case has been described in which the 2f H signal led to the earphone jack 12 is used as a power source for wireless earphones, but the present invention can also be used for various other purposes such as a power source for charging a remote control transmitter. can do.
以上のように本考案のテレビジヨン受像機によ
れば、水平偏向回路より得られる水平パルスを２
逓倍した信号を音声信号と重畳してイヤホンジヤ
ツクに導出するようにしているため、テレビジヨ
ン音声を妨害することなく該イヤホンジヤツクか
ら外部に容易に電源を取出すことができる。 As described above, according to the television receiver of the present invention, the horizontal pulses obtained from the horizontal deflection circuit are
Since the multiplied signal is superimposed on the audio signal and output to the earphone jack, power can be easily drawn from the earphone jack to the outside without interfering with the television sound.
第１図は本考案の１実施例のブロツク線図、第
２図は本考案の使用例としてのFM送信機の回路
構成図である。
８……音声増幅回路、１１……水平偏向回路、
１２……イヤホンジヤツク、１４……２逓倍回
路、１５，１６……2fHトラツプ回路。
FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a circuit diagram of an FM transmitter as an example of use of the present invention. 8... Audio amplification circuit, 11... Horizontal deflection circuit,
12...Earphone jack, 14...2 multiplier circuit, 15, 16...2f H trap circuit.
Claims (1)
した信号を音声信号と重畳してイヤホンジヤツク
に導出し、前記２逓倍された水平パルス信号を、
前記イヤホンジヤツクに接続される外部附属機器
の作動電源として用いることを特徴とするテレビ
ジヨン受像機。 A signal obtained by doubling the horizontal pulse obtained from the horizontal deflection circuit is superimposed with an audio signal and delivered to the earphone jack, and the doubled horizontal pulse signal is
A television receiver characterized in that it is used as an operating power source for external accessory equipment connected to the earphone jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11498181U JPS5823465U (en) | 1981-08-01 | 1981-08-01 | television receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11498181U JPS5823465U (en) | 1981-08-01 | 1981-08-01 | television receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5823465U JPS5823465U (en) | 1983-02-14 |
| JPS6115658Y2 true JPS6115658Y2 (en) | 1986-05-15 |
Family
ID=29909257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11498181U Granted JPS5823465U (en) | 1981-08-01 | 1981-08-01 | television receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5823465U (en) |
-
1981
- 1981-08-01 JP JP11498181U patent/JPS5823465U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5823465U (en) | 1983-02-14 |
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