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    • 1. 发明授权
    • Input level supervisory system for level regulator
    • 电平调节器输入电平监控系统
    • US4185248A
    • 1980-01-22
    • US938396
    • 1978-08-31
    • Hisaki NamuraKoichi OhtaMasao TakedaKiyoshi Minematsu
    • Hisaki NamuraKoichi OhtaMasao TakedaKiyoshi Minematsu
    • H03G3/30H04B3/10H04B17/00H04J1/16H03G3/20
    • H04B3/10H04J1/16
    • Disclosed is a system for supervising the level of input applied to a level regulator using a pilot signal. According to the invention, an input level supervisory circuit is provided which utilizes a level adjusting variable element of the level regulator, or employs a particular variable element arranged to be driven by means of the control voltage for said level adjusting variable element simultaneously with the latter element and having characteristics equal thereto, and which has a transmission ratio in a reciprocal or inverse relationship to the alternating current transmission ratio of a main signal alternating current transmission line of the level regulator. The input level supervisory circuit is supplied with an input voltage or current from a direct current constant-voltage power source or a direct current constant-current power source to generate an output voltage by means of which supervision of the level of the pilot signal input to the level regulator is performed.
    • 公开了一种用于监视使用导频信号施加到电平调节器的输入电平的系统。 根据本发明,提供了一种输入电平监控电路,其利用电平调节器的电平调节可变元件,或者采用通过用于所述电平调节可变元件的控制电压来驱动的特定可变元件 元件,具有与其相同的特性,并且其具有与电平调节器的主信号交流传输线的交流传输比成倒数或相反关系的传输比。 输入电平监控电路被提供有来自直流恒压电源或直流恒流电源的输入电压或电流以产生输出电压,通过该输出电压监视导频信号的电平输入到 执行电平调节器。
    • 2. 发明授权
    • Test connector for electronic circuit units
    • 电子电路单元测试连接器
    • US5273463A
    • 1993-12-28
    • US854627
    • 1992-06-09
    • Mitsuo KaetsuKiyoshi MinematsuHiroshi YamajiTomoyuki Hongoh
    • Mitsuo KaetsuKiyoshi MinematsuHiroshi YamajiTomoyuki Hongoh
    • H05K7/14H01R13/64
    • H05K7/1455H05K7/1404
    • A test connector for an electronic circuit unit to be mounted on a shelf (11) of an electronic apparatus, which is adapted to be inserted on the shelf only when a projection (33) on the electronic circuit unit comes into a matching position relative to a groove (25) provided on a frame portion (21) of the shelf (11). Guide members (51, 53) with guide grooves (55, 65) which guide the opposite side edges of the electronic circuit unit (27) are provided on a printed wiring board (45) which has connectors (47, 49) at the opposite ends thereof. A plurality of rod members (61, 63) are slidably located on the guide member (51). When mounting the electronic circuit unit, at least one of the rod members (61) or (63) is slid forwardly by the projection (33), prohibiting the placement of the test connector (43) on the shelf (11) unless a protruded end of the rod member (63) is in a matching position relative to the groove (25) on the shelf (11).
    • PCT No.PCT / JP91 / 01411 Sec。 371日期:1992年6月9日 102(e)日期1992年6月9日PCT 1991年10月16日PCT。一种用于安装在电子设备的搁架(11)上的电子电路单元的测试连接器,其适于仅插入在架子上 当电子电路单元上的突起(33)相对于设置在搁架(11)的框架部分(21)上的凹槽(25)进入匹配位置时。 具有引导电子电路单元(27)的相对侧边缘的引导槽(55,65)的引导构件(51,53)设置在印刷电路板(45)上,印刷电路板(45)在相对的位置具有连接器(47,49) 其端部。 多个杆构件(61,63)可滑动地位于引导构件(51)上。 当安装电子电路单元时,杆构件(61)或(63)中的至少一个由突起(33)向前滑动,禁止将测试连接器(43)放置在搁板(11)上,除非突出 杆构件(63)的端部相对于搁板(11)上的凹槽(25)处于匹配位置。