Wireless receiver apparatus provided with gain control amplifier
    11.
    发明申请
    Wireless receiver apparatus provided with gain control amplifier 有权
    具有增益控制放大器的无线接收装置

    公开(公告)号:US20080076373A1

    公开(公告)日:2008-03-27

    申请号:US11905063

    申请日:2007-09-27

    IPC分类号: H04B1/06

    CPC分类号: H03G3/3078

    摘要: In a wireless receiver apparatus including a gain control amplifier for controlling a gain of a reception signal, a maintaining device compulsorily maintains the gain of the gain control amplifier at a predetermined fixed value only in a predetermined specified interval. The maintaining device includes a latch circuit for maintaining a gain set value immediately prior to the specified interval. A start timing of the specified interval is determined by an edge of a predetermined timer start signal, and a duration of the specified interval is determined on the basis of a count of a predetermined timer clock signal and a count of a predetermined timer count set bus signal.

    摘要翻译: 在包括用于控制接收信号的增益的增益控制放大器的无线接收机装置中,保持装置仅在预定的指定间隔内强制地将增益控制放大器的增益保持在预定的固定值。 保持装置包括用于在紧接指定间隔之前维持增益设定值的锁存电路。 指定间隔的开始定时由预定定时器启动信号的边缘确定,并且基于预定定时器时钟信号的计数和预定定时器计数总线的计数来确定指定间隔的持续时间 信号。

    Dicarboxylic diester, process for producing the same, and refrigerating machine lubricating oil comprising the ester
    13.
    发明授权
    Dicarboxylic diester, process for producing the same, and refrigerating machine lubricating oil comprising the ester 有权
    二羧酸二酯及其制造方法以及包含酯的制冷机润滑油

    公开(公告)号:US07271282B1

    公开(公告)日:2007-09-18

    申请号:US10019287

    申请日:2000-07-19

    IPC分类号: C07C69/74 C07C69/34 C07C69/75

    摘要: A diester represented by the formula wherein A represents a cyclohexane ring, cyclohexene ring or benzene ring, X is H or methyl group, RX and RY are the same or different and each is C3-C18 branched-chain alkyl group, C1-C18 straight-chain alkyl group, C2-C18 straight-chain alkenyl or C3-C10 cycloalkyl, provided that when A is a benzene ring, RX and RY are different from each other and —COORX and —COORY are attached to two adjacent carbon atoms of the benzene ring, and having the following properties: 1) a total acid number of 0.05 mgKOH/g or less, 2) a sulfated ash content of 10 ppm or less, 3) a sulfur content of 20 ppm or less, 4) a phosphorus content of 20 ppm or less, 5) a peroxide value of 1.0 meq/kg or less, 6) a carbonyl value of 10 or less; 7) a volume resistivity of 1×1011Ω·cm or more, 8) a hydroxyl value of 3 mgKOH/g or less, and 9) a water content of 100 ppm or less, a process for preparing the same and a refrigerator lubricating oil comprising the diester.

    摘要翻译: 由下式表示的二酯其中A表示环己烷环,环己烯环或苯环,X为H或甲基,R X和R Y相同或不同 并且各自为C 3 -C 18支链烷基,C 1 -C 18直链烷基,C 2 -C 18直链烯基或C 3 -C 10环烷基,条件是当A为苯环时,R X' SUP>和R Y'彼此不同,-COOR X和-COOR Y连接到苯环的两个相邻碳原子上 ,具有以下特性:1)总酸值为0.05mgKOH / g以下,2)硫酸灰分含量为10ppm以下,3)硫含量为20ppm以下,4)磷含量 20ppm以下,5)过氧化值为1.0meq / kg以下,6)羰基值为10以下; 7)体积电阻率为1×10 11Ω或更大,8)羟值为3mgKOH / g以下,9)水含量为100ppm以下,制备方法 和含有二酯的冰箱润滑油。