Ignition coil driver module
    1.
    发明授权
    Ignition coil driver module 失效
    点火线圈驱动模块

    公开(公告)号:US5781047A

    公开(公告)日:1998-07-14

    申请号:US863173

    申请日:1997-05-27

    摘要: The ignition coil driver module of the present invention includes a control integrated circuit and a high current load driver integrated circuit housed within a common package such as a TO-247 or TO-264 package. The control integrated circuit is formed of a semiconductor material manufactured in accordance with a standard low-voltage integrated circuit processing technology and is responsive to a control signal input to provide a low voltage drive signal. The high current load driver integrated circuit is formed of a semiconductor material manufactured in accordance with a high-voltage integrated circuit processing technology and is responsive to the low voltage drive signal to energize the high current load. A current limit function is further provided for limiting the load current to a predetermined level.

    摘要翻译: 本发明的点火线圈驱动器模块包括控制集成电路和容纳在诸如TO-247或TO-264封装的公共封装内的高电流负载驱动器集成电路。 控制集成电路由根据标准低压集成电路处理技术制造的半导体材料形成,并且响应于控制信号输入以提供低电压驱动信号。 高电流负载驱动器集成电路由根据高压集成电路处理技术制造的半导体材料形成,并且响应于低电压驱动信号以激励高电流负载。 还提供限流功能以将负载电流限制在预定的电平。

    Signal seeking receiver stopping circuit
    2.
    发明授权
    Signal seeking receiver stopping circuit 失效
    信号寻线接收机停电电路

    公开(公告)号:US3967203A

    公开(公告)日:1976-06-29

    申请号:US554982

    申请日:1975-03-03

    IPC分类号: H03J7/18 H04B1/32

    CPC分类号: H03J7/18

    摘要: A circuit for generating a center tuned pulse for stopping the operation of a signal seeking FM receiver includes means for developing a bias current which is added to the output currents of the quadrature detector of the receiver. A stopping pulse is generated whenever the difference between the output currents is less than the bias current and a 10.7 mHz. signal is present in the IF amplifier.

    摘要翻译: 用于产生用于停止寻找信号的FM接收机的操作的中心调谐脉冲的电路包括用于产生与接收机的正交检波器的输出电流相加的偏置电流的装置。 每当输出电流之间的差小于偏置电流和10.7 mHz时,就产生停止脉冲。 信号存在于IF放大器中。

    Volume, tone and balance control for multi-channel audio systems
    3.
    发明授权
    Volume, tone and balance control for multi-channel audio systems 失效
    多通道音频系统的音量,音调和平衡控制

    公开(公告)号:US4076959A

    公开(公告)日:1978-02-28

    申请号:US730950

    申请日:1976-10-08

    摘要: Control circuitry for a multi-channel audio system is disclosed which includes left and right signal processing channels and a DC control section. Each processing channel includes balance and volume sections which are connected with the DC control circuitry and controlled from respective balance and volume potentiometers connected with the DC control section. Each channel further includes a tone control section and more specifically treble and bass sections connected with the DC control circuitry and controlled from a tone potentiometer. The response of the bass section is also controlled as a function of the setting of the volume potentiometer to achieve a loudness function. The volume control circuitry is designed to produce a linear relationship between the DC control voltage and signal attenuation as measured in decibels. Current steering circuitry is employed in both amplitude and tone control.

    摘要翻译: 公开了一种用于多声道音频系统的控制电路,其包括左和右信号处理通道以及DC控制部分。 每个处理通道包括与DC控制电路相连并由与DC控制部连接的相应的平衡和体积电位器控制的平衡和体积部分。 每个通道还包括音调控制部分,更具体地,与DC控制电路连接并由音调电位器控制的高音和低音部分。 低音部分的响应也作为音量电位器的设置来控制,以实现响度功能。 音量控制电路被设计为产生直流控制电压和信号衰减之间的线性关系,以分贝为单位。 电流控制电路用于幅度和音调控制。

    Keyed classical AGC system
    5.
    发明授权
    Keyed classical AGC system 失效
    键控古典AGC系统

    公开(公告)号:US3947771A

    公开(公告)日:1976-03-30

    申请号:US551603

    申请日:1975-02-21

    IPC分类号: H03G3/20 H04B1/16

    CPC分类号: H03G3/3052

    摘要: An automatic gain control system in which a DC voltage proportional to an on-channel signal is used to control the gain of the RF stage but is keyed from the wide band output of the mixer stage to reduce the possibility of mixer overload.

    摘要翻译: 一种自动增益控制系统,其中使用与通道信号成比例的直流电压来控制RF级的增益,但是从混频器级的宽带输出键入,以减少混频器过载的可能性。

    Audio processor circuit for an FM-stereo radio receiver
    7.
    发明授权
    Audio processor circuit for an FM-stereo radio receiver 失效
    用于FM立体声无线电接收机的音频处理器电路

    公开(公告)号:US3952161A

    公开(公告)日:1976-04-20

    申请号:US516797

    申请日:1974-10-21

    IPC分类号: H04B1/16 H04S1/00 H04R5/04

    CPC分类号: H04S1/00 H04B1/1684

    摘要: An audio processor is disclosed which includes circuitry for modifying pure left and right audio signals by blending the left audio signal with the right audio signal as a function of frequency and for rolling off the higher frequencies of the blended signal. The processor further includes circuitry for selecting complementary portions of a blended, rolled-off audio signal and a pure audio signal as a function of the RF carrier strength to improve the overall listenability of the audio.

    摘要翻译: 公开了一种音频处理器,其包括用于通过将左音频信号与作为频率的函数的正确音频信号混合并用于滚动混合信号的较高频率来修改纯左和右音频信号的电路。 处理器还包括用于根据RF载波强度来选择混合,滚降音频信号和纯音频信号的互补部分的电路,以提高音频的整体可听性。