JPH0163271U - - Google Patents
Info
- Publication number
- JPH0163271U JPH0163271U JP1987157182U JP15718287U JPH0163271U JP H0163271 U JPH0163271 U JP H0163271U JP 1987157182 U JP1987157182 U JP 1987157182U JP 15718287 U JP15718287 U JP 15718287U JP H0163271 U JPH0163271 U JP H0163271U
- Authority
- JP
- Japan
- Prior art keywords
- stereo
- circuit
- monaural
- switch
- television
- 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
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Television Receiver Circuits (AREA)
Description
第１図は、本考案による音声多重放送受信機能
付液晶ポケツトテレビのブロツク図。第２図ａ〜
ｄは、音声多重信号復調回路の出力波形図。第３
図は、本考案によるステレオ・モノラル動作切換
え回路の応用例図。第４図は、本考案による液晶
ポケツトテレビの外観図。
FIG. 1 is a block diagram of a liquid crystal pocket television with an audio multiplex broadcast reception function according to the present invention. Figure 2 a~
d is an output waveform diagram of the audio multiplex signal demodulation circuit. Third
The figure is an application example of the stereo/monaural operation switching circuit according to the present invention. FIG. 4 is an external view of the liquid crystal pocket television according to the present invention.
Claims (1)
ステレオイヤフオンを音声出力装置とし、 さらに、少くとも１個のトランジスタを含む信
号反転増幅回路と２個のインバーター回路と１個
のＡＮＤ回路と１個のアナログスイツチ回路によ
つて構成されるステレオ・モノラル動作切換え回
路と、前記ステレオイヤフオンの着脱によつて、
スイツチを開閉出来るスイツチ端子付イヤフオン
ジヤツクとをもち、 前記ステレオ・モノラル動作切換え回路のステ
レオとモノラルの受信状態の切換えは、ステレオ
イヤフオンの着脱により、前記スイツチ端子付イ
ヤフオンジヤツクのスイツチを開閉することによ
つて行なうことを特徴とする音声多重放送受信機
能付液晶ポケツトテレビ。[Claim for Utility Model Registration] An audio output device consisting of only one built-in speaker and externally detachable stereo earphones, and further comprising a signal inversion amplifier circuit including at least one transistor and two inverter circuits. With a stereo/monaural operation switching circuit composed of one AND circuit and one analog switch circuit, and the attachment and detachment of the stereo earphones,
It has an earphone jack with a switch terminal that can open and close the switch, and switching between stereo and monaural reception status of the stereo/monaural operation switching circuit is performed by attaching and detaching the stereo earphone. A liquid crystal pocket television with an audio multiplex broadcast reception function, characterized in that the reception function is activated by opening and closing the television.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987157182U JPH0163271U (en) | 1987-10-14 | 1987-10-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987157182U JPH0163271U (en) | 1987-10-14 | 1987-10-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0163271U true JPH0163271U (en) | 1989-04-24 |
Family
ID=31436401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987157182U Pending JPH0163271U (en) | 1987-10-14 | 1987-10-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0163271U (en) |
-
1987
- 1987-10-14 JP JP1987157182U patent/JPH0163271U/ja active Pending
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