Cordless telephone system having base unit with speaker
    11.
    发明授权
    Cordless telephone system having base unit with speaker 失效
    无线电话系统具有带扬声器的基座单元

    公开(公告)号:US5802476A

    公开(公告)日:1998-09-01

    申请号:US581331

    申请日:1995-12-29

    摘要: In a cordless telephone set, a base unit which itself has no loudspeaker function is made to provide a loudspeaker function at low cost. The base unit 2 has a transmitting circuit 22 for transmitting an aural signal and data to the handset 1 and a receiving circuit 23 for receiving and extracting the aural signal and data transmitted from the handset 1. A line interface circuit 25 coupled to a telephone line 3, a loudspeaker 44, and a selector circuit 28 for switching connection of the aural signal line between the transmitting circuit 22, the receiving circuit 23, the interface circuit 25, and the loudspeaker 44 are provided. In normal use, the transmitting circuit 22 and the receiving circuit 23 of the base unit 2 are connected with the line interface circuit 25 via the selector circuit 28. When predetermined push buttons 17 on the handset 1 are operated, the base unit 2 controls the selector circuit 28 so that the telephone line 3 is connected to the loudspeaker 44 via the selector circuit 28.

    摘要翻译: 在无绳电话机中,本身没有扬声器功能的基座单元以低成本提供扬声器功能。 基本单元2具有用于将听觉信号和数据发送到手持机1的发送电路22和用于接收和提取听筒信号和从手机1发送的数据的接收电路23.线路接口电路25耦合到电话线 3,扬声器44和用于在发送电路22,接收电路23,接口电路25和扬声器44之间切换听觉信号线的连接的选择器电路28。 在正常使用中,基本单元2的发送电路22和接收电路23经由选择器电路28与线路接口电路25连接。当手机1上的预定按钮17被操作时,基座单元2控制 选择器电路28,使得电话线3经由选择器电路28连接到扬声器44。

    ELECTRONIC CIRCUIT STRUCTURE, POWER SUPPLY APPARATUS, POWER SUPPLY SYSTEM, AND ELECTRONIC APPARATUS
    12.
    发明申请
    ELECTRONIC CIRCUIT STRUCTURE, POWER SUPPLY APPARATUS, POWER SUPPLY SYSTEM, AND ELECTRONIC APPARATUS 有权
    电子电路结构,电源设备,电源系统和电子设备

    公开(公告)号:US20090257210A1

    公开(公告)日:2009-10-15

    申请号:US12487279

    申请日:2009-06-18

    IPC分类号: H05K7/06

    CPC分类号: H05K1/0263 H05K2201/10272

    摘要: This invention prevents a deterioration of efficiency of a power supply apparatus due to a semiconductor power supply voltage drop, prevents an increase in wasted power, and prevents erroneous operations due to feeder wire voltage drop. In the mounting structure of electronic circuits having a plurality of busbars as current paths on a printed circuit board, the plurality of busbars have almost parallel portions spaced a predetermined distance apart; a span of the parallel portions of the plurality of busbars is greater than the predetermined distance; and in the parallel portions of the plurality of busbars, the plurality of busbars are connected by a wiring pattern. In the switching power supply apparatus built on a printed circuit board, with its output voltage of less than 2 V and its output current of more than 100 A, a means is provided for making the power efficiency higher than 70%.

    摘要翻译: 本发明可防止由于半导体电源电压下降导致的电源装置的效率的劣化,防止浪费电力的增加,并且防止由于馈线电压下降引起的错误操作。 在具有作为印刷电路板上的电流路径的多个母线的电子电路的安装结构中,多个母线具有间隔开预定距离的几乎平行的部分; 多个汇流条的平行部分的跨度大于预定距离; 并且在多个母线的平行部分中,多个母线通过布线图案连接。 在内置于印刷电路板上的开关电源装置中,其输出电压小于2V,其输出电流大于100A,提供了使功率效率高于70%的装置。

    Glass cloth wiring substrate
    13.
    发明申请
    Glass cloth wiring substrate 审中-公开
    玻璃布布线基板

    公开(公告)号:US20080176471A1

    公开(公告)日:2008-07-24

    申请号:US12005592

    申请日:2007-12-26

    IPC分类号: D03D13/00

    摘要: According to the present invention, variations in characteristic impedance and transmission loss of a signal wiring in a glass cloth wiring substrate can be reduced. There is provided a glass cloth wiring substrate in which signal wirings, plural glass cloth layers, and conductor faces are laminated, and spaces between the signal wirings, the plural glass cloth layers, and the conductor faces are impregnated with resin, wherein the glass cloth layers are formed by weaving bundles of glass fibers in a lattice shape, and the adjacent glass cloth layers are laminated on each other while rotating the warp-weft directions of the glass fibers by a predetermined angle with respect to each other. It is preferable that the rotation angle of the warp-weft directions of the glass fibers of the adjacent glass cloth layers falls within a range from 30 to 60 degrees.

    摘要翻译: 根据本发明,可以降低玻璃布线基板中的信号布线的特性阻抗和传输损耗的变化。 提供了层叠有信号布线,多个玻璃布层和导体面的玻璃布布线基板,信号布线,多个玻璃布层和导体面之间的空间用树脂浸渍,其中玻璃布 通过编织格子状的玻璃纤维束形成层,并且相邻的玻璃布层彼此层叠,同时使玻璃纤维的经纬方向相对于彼此旋转预定角度。 相邻玻璃布层的玻璃纤维的经向方向的旋转角度优选为30〜60度的范围。

    Variable delay circuit and clock signal supply unit using the same
    15.
    发明授权
    Variable delay circuit and clock signal supply unit using the same 失效
    可变延迟电路和时钟信号供给单元使用相同

    公开(公告)号:US5497263A

    公开(公告)日:1996-03-05

    申请号:US117525

    申请日:1993-09-07

    摘要: A variable delay circuit including delay devices each having a plurality of delay units connected successively, only some of the delay units of the delay devices being connected to a signal transmission line, wherein a delay time is controlled by activating or inactivating the plurality of delay units according to control signals applied to control input terminals provided respectively for said plurality of delay units. A clock signal supply device for supplying a second clock signal to a logic circuit block, said clock signal supply device having a clock signal generator for generating a first clock signal and a reference signal and a phase adjusting means for adjusting the phase of the first clock signal phased on a phase difference between the first clock signal and the reference signal and outputting the phase-adjusted signal as a second clock signal, wherein the phase adjusting unit comprises a first variable delay circuit capable of delay operation in initial adjustment of the first clock signal, a second variable delay circuit, disposed in series with the first variable delay circuit, for performing the delay operation after the initial adjustment, and control circuits for controlling delay times of the first and second variable delay circuits.

    摘要翻译: 一种可变延迟电路,包括延迟装置,每个延迟装置具有连续连接的多个延迟单元,延迟装置的一些延迟单元连接到信号传输线,其中通过激活或者使多个延迟单元激活来控制延迟时间 根据施加到分别为所述多个延迟单元提供的控制输入端子的控制信号。 一种用于向逻辑电路块提供第二时钟信号的时钟信号提供装置,所述时钟信号提供装置具有用于产生第一时钟信号和参考信号的时钟信号发生器和用于调整第一时钟的相位的相位调整装置 信号相位于第一时钟信号和参考信号之间的相位差,并输出相位调整信号作为第二时钟信号,其中相位调整单元包括能够在第一时钟的初始调整中延迟操作的第一可变延迟电路 信号,与第一可变延迟电路串联布置的第二可变延迟电路,用于在初始调整之后执行延迟操作;以及控制电路,用于控制第一和第二可变延迟电路的延迟时间。