Digital amplitude modulation amplifier and television broadcasting
machine
    5.
    发明授权
    Digital amplitude modulation amplifier and television broadcasting machine 失效
    数字调幅放大器和电视广播机

    公开(公告)号:US6041082A

    公开(公告)日:2000-03-21

    申请号:US923323

    申请日:1997-09-04

    CPC分类号: H03C1/00 H04N5/40

    摘要: Since output voltage e of coupler CU2 is displaced in phase by -135 degrees from input signals c and d (by -270 degrees from signals a and b), a carrier which makes signal f is phase shifted by -270 degrees by phase shifter .phi.1 so that signal f may have the same phase as signal e. Signal f and signal e are power composed by first 3 dB coupler M1, and are further phase shift controlled by variable phase shifters PH11 and PH12 so that they may have the same phase. Further, an output signal of variable phase shifter PH11 is phase shifted by -90 degrees by phase shifter SH1 so that it has a phase difference by 90 degrees from an output signal of variable phase shifter PH2, and the two signals controlled in this manner are inputted to 3 dB coupler M2. Consequently, two signals e and f inputted to the amplifier are all outputted as output voltage EOUT. According to the present invention of a television broadcasting machine, since a carrier is phase modulated and amplitude modulated with amplitude information and phase information obtained from an input video signal, a vestigial side band signal is outputted to form a television signal without using vestigial side band.

    摘要翻译: 由于耦合器CU2的输出电压e相对于输入信号c和d相位偏移-135度(与信号a和b相差-270度),使得信号f的载波通过移相器phi相移-270度 1,使得信号f可以具有与信号e相同的相位。 信号f和信号e是由第一3dB耦合器M1组成的功率,并且由可变移相器PH11和PH12进一步进行相移控制,使得它们可以具有相同的相位。 此外,可变移相器PH11的输出信号通过移相器SH1相位移-90度,使得其与可变移相器PH2的输出信号具有90度的相位差,并且以这种方式控制的两个信号是 输入到3dB耦合器M2。 因此,输入到放大器的两个信号e和f都作为输出电压EOUT输出。 根据电视广播机的本发明,由于载波是利用从输入视频信号获得的幅度信息和相位信息进行相位调制和幅度调制的,所以残留边带信号被输出以形成电视信号而不使用残留边带 。

    LUBRICATING OIL ADDITIVE COMPOSITION AND METHOD FOR IMPROVING STORAGE STABILITY OF LUBRICATING OIL ADDITIVE COMPOSITION
    7.
    发明申请
    LUBRICATING OIL ADDITIVE COMPOSITION AND METHOD FOR IMPROVING STORAGE STABILITY OF LUBRICATING OIL ADDITIVE COMPOSITION 有权
    润滑油添加剂组合物和改善润滑油添加剂组合物储存稳定性的方法

    公开(公告)号:US20140045738A1

    公开(公告)日:2014-02-13

    申请号:US14113659

    申请日:2012-04-24

    IPC分类号: C10M135/06

    摘要: The purpose of the present invention is to provide a thiodicarboxylic acid ester which has high long-term storage stability without inhibiting antioxidant properties and wear-resistant properties of the thiodicarboxylic acid ester.In order to achieve the above-mentioned purpose, the present invention provides a lubricating oil additive composition which is characterized by containing a compound (A) represented by general formula (1) and a compound (B) represented by general formula (2) and by having an acid value of 0.01-0.4 mgKOH/g. (in the formula, R1 and R4 each independently represent a hydrocarbon group having 6 to 18 carbon atoms and R2 and R3 each independently represent an alkylene group having 1 to 4 carbon atoms) (in the formula, R5 represents a hydrocarbon group having 6 to 18 carbon atoms and R6 and R7 each independently represent an alkylene group having 1 to 4 carbon atoms).

    摘要翻译: 本发明的目的是提供一种硫代二羧酸酯,其具有高的长期保存稳定性,而不会抑制硫代二羧酸酯的抗氧化性能和耐磨性能。 为了实现上述目的,本发明提供一种润滑油添加剂组合物,其特征在于含有通式(1)表示的化合物(A)和通式(2)表示的化合物(B)和 通过使酸值为0.01-0.4mgKOH / g。 (式中,R 1和R 4各自独立地表示碳原子数6〜18的烃基,R 2和R 3各自独立地表示碳原子数1〜4的亚烷基)(式中,R 5表示具有6〜 18个碳原子,R6和R7各自独立地表示碳原子数1〜4的亚烷基。