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    • 8. 发明授权
    • Audible antenna alignment apparatus
    • 声音天线对准装置
    • US4893288A
    • 1990-01-09
    • US246541
    • 1988-08-03
    • Gerhard MaierVeit Armbruster
    • Gerhard MaierVeit Armbruster
    • G01S3/80G01S3/40H01Q1/12H03J3/12
    • G01S3/40H01Q1/1257H03J3/12
    • An arrangement for aligning an antenna by determining an extreme value maximum or minimum of a predetermined physical dimension which is dependent on the alignment of the antenna. A voltage is generated in proportion in the magnitude of the physical parameter or dimension, and this voltage is applied to a voltage-to-frequency converter which converts this voltage into an acoustical signal. This acoustical signal has a frequency which is inversely proportional to the voltage. The acoustical signal is applied to the control input of an electronic switch which is actuated by an oscillator. Groups of pulses in the output signal from the oscillator are obtainable at the output of the electronic switch, in synchronization with the acoustical signal. When the antenna is misaligned, the acoustical signal has a relatively high frequency, while the voltage has a relatively low level. When the antenna is close to alignment on the other hand, the frequency of the acoustical signal is relatively low, while the voltage has a relatively high level.
    • PCT No.PCT / EP87 / 00740 Sec。 371日期1988年8月26日 102(e)日期1988年8月26日PCT提交1987年11月28日PCT公开号 出版物WO88 / 04478 日期1988年6月16日。一种通过确定取决于天线的对准的预定物理尺寸的极值或最小值来对准天线的布置。 在物理参数或尺寸的大小上按比例生成电压,并将该电压施加到将该电压转换为声信号的电压 - 频率转换器。 该声信号具有与电压成反比的频率。 声信号被施加到由振荡器驱动的电子开关的控制输入端。 来自振荡器的输出信号中的脉冲组可以与声学信号同步地在电子开关的输出处获得。 当天线不对准时,声信号具有相对较高的频率,而电压具有较低的电平。 另一方面,当天线接近对准时,声信号的频率相对较低,而电压具有较高的电平。
    • 9. 发明授权
    • Tuning system for television sets
    • 电视机调谐系统
    • US4736456A
    • 1988-04-05
    • US948346
    • 1986-12-02
    • Gerhard Maier
    • Gerhard Maier
    • H04N5/50H03J1/00H03J3/32H03J5/02H04B1/26
    • H03J5/0281H03J3/32H04N5/50H03J1/0033H03J2200/28
    • An automatic alignment system for the tuner of a television receiver with a controlled high-frequency preamplifier stage and an intermediate-frequency amplifier that has a reference circuit with a resonance frequency that can be switched to the arithmetic mean between the video-carrier intermediate frequency and the audio-carrier intermediate frequency during automatic alignment. The maximum control voltage is employed as a criterion for optimum alignment and an auxiliary oscillator is switched on during automatic alignment and generates through a mixing stage an auxiliary frequency that corresponds to the arithmetic mean of the video-carrier frequency and the audio-carrier frequency from the tuner-oscillator frequency.
    • PCT No.PCT / EP86 / 00201 Sec。 一九八六年十二月二日 102(e)1986年12月2日PCT PCT申请日1986年4月2日PCT公布。 公开号WO86 / 06235 日本1986年10月23日。具有受控高频前置放大器级的电视接收机的调谐器的自动对准系统和具有共振频率的参考电路的中频放大器,该谐振频率可被切换到 视频载波中频和音频载波中频自动对准。 采用最大控制电压作为最佳对准的标准,并且在自动对准期间接通辅助振荡器,并通过混频级产生对应于视频载波频率和音频载波频率的算术平均值的辅助频率 调谐器振荡器频率。