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    • 4. 发明授权
    • One key system for freezing a television PIP display
    • 用于冻结电视PIP显示屏的一个关键系统
    • US6052155A
    • 2000-04-18
    • US22316
    • 1998-02-11
    • Sol CherrickCharles S. Pint
    • Sol CherrickCharles S. Pint
    • H04N5/44H04N5/45
    • H04N5/4448H04N21/4221H04N21/4316H04N5/45
    • A television receiver with PIP circuitry provides a snapshot feature for freezing the main video display in the PIP display inset by operation of a special key on a remote control keypad. With the television receiver operating normally (PIP deactivated), one operation of the special key switches the main video signal to the PIP input and freezes the PIP display in its largest size and in the position it occupied the last time PIP was activated. A video message informs the viewer that a snapshot feature is operational. A subsequent operation of the special key switches the PIP signal to the PIP circuitry and unfreezes the display as in normal PIP operation. A further operation of the special key deactivates the PIP circuitry.
    • 具有PIP电路的电视接收机提供快照功能,用于通过遥控器键盘上的特殊键的操作来冻结PIP显示屏中的主视频显示。 在电视接收机正常工作(PIP取消激活)的情况下,特殊按键的一个操作将主视频信号切换到PIP输入,并将PIP显示屏以最大的大小和最后一次PIP激活的位置冻结。 视频消息通知观看者快照功能是可操作的。 特殊键的后续操作将PIP信号切换到PIP电路,并按照普通PIP操作解冻显示。 特殊键的另一操作使PIP电路失效。