专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明授权

US5311077A Power supply, temperature, and load capacitance compensating, controlled slew rate output buffer 失效
标题翻译：电源，温度和负载电容补偿，受控转换速率输出缓冲器
公开(公告)号：US5311077A
公开(公告)日：1994-05-10
申请号：US49793
申请日：1993-04-21
申请人： Michael A. Brown
发明人： Michael A. Brown
IPC分类号： G11C11/409 , H03F1/00 , H03K5/12 , H03K17/60 , H03K19/003 , H03K19/0175 , H03K19/088 , H03K19/08
CPC分类号： H03K19/00376 , H03K19/00361
摘要： A controlled slew rate output buffer has an input stage that generates a charging current in response to the rising edge of an input signal and that generates a discharging current in response to the falling edge of the input signal so that both the charging current and the discharging current are substantially constant over a temperature range and a power supply voltage range. A charging stage responds to the charging current by charging an intermediate node at a first slew rate that is substantially constant over the temperature range and the power supply voltage range. A discharging stage responds to the discharging current by discharging the intermediate node at a second slew rate that is substantially constant over the temperature range and the power supply voltage range. A charging output stage responds to the charging of the intermediate node and charges an output node at a third slew rate that is substantially equivalent to the first slew rate and that is substantially constant over the temperature range, the power supply voltage range, and an output capacitance range. A discharging output stage responds to the discharging of the intermediate node and discharges the output node at a fourth slew rate that is substantially equivalent to the second slew rate and that is substantially constant over the temperature range, the power supply voltage range, and the output capacitance range.
摘要翻译：受控的转换速率输出缓冲器具有响应于输入信号的上升沿而产生充电电流并且响应于输入信号的下降沿而产生放电电流的输入级，使得充电电流和放电电流在温度范围和电源电压范围内基本恒定。充电阶段通过在温度范围和电源电压范围内基本上恒定的第一压摆率对中间节点充电来响应充电电流。放电阶段通过以中间节点以温度范围和电源电压范围基本上恒定的第二压摆率放电来响应放电电流。充电输出级响应于中间节点的充电，并以基本上等于第一压摆率的第三转换速率对输出节点充电，并且在温度范围，电源电压范围和输出端基本上恒定电容范围。放电输出级响应于中间节点的放电，并以与第二压摆率基本相当的第四压摆率放电输出节点，并且在温度范围，电源电压范围和输出端基本上恒定电容范围。

92. 发明授权

US5289049A Signal input selecting circuits 失效
标题翻译：信号输入选择电路
公开(公告)号：US5289049A
公开(公告)日：1994-02-22
申请号：US927583
申请日：1992-08-10
申请人： Takashi Kanai , Kaneaki Fujishita
发明人： Takashi Kanai , Kaneaki Fujishita
IPC分类号： G11C27/02 , H01H1/60 , H03F1/00
CPC分类号： H01H1/605 , G11C27/02
摘要： A signal input selecting circuit comprises a plurality of signal input terminals, a first switch device for selecting one of signal electrodes of the signal input terminals to be connected with a signal processing block, a second switch device for selecting one of reference electrodes of the signal input terminals to be connected with a reference potential point, a third switch device for connecting the second switch device with a current supplying portion, and a voltage detector for detecting a voltage corresponding to an impedance of the second switch device. When the voltage detected by the voltage detector has a level thereof less than a predetermined level under a condition in which the second switch device is in operation to connect the reference electrode of a selected one of the signal input terminals with the reference potential point and the third switch device is in operation to connect the second switch device with the current supplying portion, the third switch device is turned to disconnect the switch device from the current supplying portion and the first switch device is caused to connect the signal electrode of the selected one of the signal input terminals with the signal processing block.
摘要翻译：信号输入选择电路包括多个信号输入端子，用于选择要与信号处理块连接的信号输入端子的信号电极中的一个的第一开关装置，用于选择信号的参考电极之一的第二开关装置与参考电位点连接的输入端子，用于将第二开关装置与电流供应部分连接的第三开关装置，以及用于检测对应于第二开关装置的阻抗的电压的电压检测器。当电压检测器检测到的电压的电平小于预定电平时，在第二开关装置正在操作中，将所选择的一个信号输入端子的参考电极与基准电位点和第三开关装置正在操作以将第二开关装置与电流供应部分连接，第三开关装置被转动以将开关装置与电流供应部分断开，并且使第一开关装置连接所选择的一个的信号电极信号输入端与信号处理块。

93. 发明授权

US5256987A Power amplifier device having a plurality of power amplifier units connected in parallel 失效
标题翻译：具有并联连接的多个功率放大器单元的功率放大器装置
公开(公告)号：US5256987A
公开(公告)日：1993-10-26
申请号：US717835
申请日：1991-06-21
申请人： Toshimitsu Kibayashi , Yoshifumi Toda
发明人： Toshimitsu Kibayashi , Yoshifumi Toda
IPC分类号： H03F1/00 , H03F3/60 , H03F3/68 , H03F3/72 , H03G3/20
CPC分类号： H03G3/3042 , H03F3/602 , H03F3/72 , H03F2203/7236 , H04B1/0483
摘要： A power amplifier device includes m power amplifier units provided in parallel where m is an integer, a distributor for distributing an input signal to the m power amplifier units, and a combining device for combining m amplified input signals output by the m power amplifier to generate an amplified output signal. The power amplifier device includes a group of switches for gradually disconnecting the m power amplifier units from the distributor and the combining device and for gradually connecting the m power amplifier units to the distributor and the combining device.
摘要翻译：功率放大器装置包括并行设置的m个功率放大器单元，其中m是整数，用于将输入信号分配给m个功率放大器单元的分配器，以及用于组合由m个功率放大器输出的m个放大的输入信号的组合装置，以产生放大的输出信号。功率放大器装置包括用于逐渐从分配器和组合装置断开m个功率放大器单元的一组开关，并且用于将m个功率放大器单元逐渐连接到分配器和组合装置。

94. 发明授权

US5063597A Muting circuit in a digital audio system 失效
标题翻译：数字音频系统中的静音电路
公开(公告)号：US5063597A
公开(公告)日：1991-11-05
申请号：US395508
申请日：1989-08-18
申请人： Jung-Hoon Seo , Sung-Mo Seo
发明人： Jung-Hoon Seo , Sung-Mo Seo
IPC分类号： G11B20/10 , G11B20/24 , H03F1/00 , H03G3/34 , H03M1/08
CPC分类号： G11B20/24 , H03G3/345 , H03G3/348
摘要： A muting circuit in a digital audio system having a digital signal processor, a first latch, a second latch, a comparator for comparing data in the first and second latches, an address encoder, a counter, a memory, a divider, a multiplier and a switching circuit, wherein disturbing beat noises generated during the turning off of power to the system or generated null data pop noises generated in response to external influences or internal circuitry influences are muted.
摘要翻译：数字音频系统中的静噪电路，具有数字信号处理器，第一锁存器，第二锁存器，比较器，用于比较第一和第二锁存器中的数据，地址编码器，计数器，存储器，除法器，乘法器和一种切换电路，其中在对系统的电源断开期间产生的干扰的搏动噪声或产生的零数据响应于外部影响或内部电路影响而产生的爆音噪声被静音。

95. 发明授权

US5014017A Power-saving low-frequency power amplifier 失效
标题翻译：省电低频功放
公开(公告)号：US5014017A
公开(公告)日：1991-05-07
申请号：US392365
申请日：1989-08-10
申请人： Kazuhisa Ishiguro , Yutaka Sekiguchi
发明人： Kazuhisa Ishiguro , Yutaka Sekiguchi
IPC分类号： H03F1/00 , H03F1/02 , H03F3/30 , H04B1/06 , H04B1/38 , H04B1/40
CPC分类号： H03F1/0244
摘要： A power saving low frequency power amplifier includes a first stage amplifier for receiving and amplifying data signal, a second stage amplifier for amplifying the output of the first stage amplifier, and a power amplifier for amplifying the output of the second amplifier. The first stage amplifier is operated in response to a driving current. The second stage amplifier receives a first idling current for obtaining a predetermined amplification, and the power amplifier receives a second idling current for obtaining a predetermined amplification. A first switching circuit is provided for making and braking paths for the first and second idling currents provided for producing a power save signal to the first switching means for braking the first switching circuit when the power save signal is present.

96. 发明授权

US4859955A Apparatus for smoothing an abrupt change in signal level 失效
标题翻译：用于平滑信号电平突然变化的装置
公开(公告)号：US4859955A
公开(公告)日：1989-08-22
申请号：US795676
申请日：1985-11-06
申请人： Paul M. Trethewey
发明人： Paul M. Trethewey
IPC分类号： H03G3/00 , H03F1/00 , H03G3/02 , H03K4/00 , H03K4/94 , H03K5/02
CPC分类号： H03K5/02
摘要： An apparatus for smoothing an abrupt change in signal level generates a control signal having a curvilinear ramp shape. An amplifier has a step input signal applied to a non-inverting input, a delayed slope control signal applied to a bias terminal, and the output of the amplifier fed back to an inverting input. An RC series circuit is connected between the output of the amplifier and a reference potential, with the control signal taken from the node between the resistor and capacitor. The amplifier is saturated by the step input signal, and is subsequently turned on by the delayed slope control signal so that the amplifier acts initially as a current source for the RC circuit until the slope control signal reaches its full value. Then the RC circuit charges linearly until the intercept voltage of the step input is approached, at which point the amplifier comes out of saturation and acts as a voltage source to exponentially charge the capacitor to the intercept voltage.
摘要翻译：用于平滑信号电平突然变化的装置产生具有曲线斜坡形状的控制信号。放大器具有施加到非反相输入的阶跃输入信号，施加到偏置端的延迟斜率控制信号，反馈到反相输入的放大器的输出。 RC串联电路连接在放大器的输出端和参考电位之间，控制信号取自电阻和电容之间的节点。放大器由步进输入信号饱和，随后被延迟的斜率控制信号导通，使得放大器最初作为RC电路的电流源起作用，直到斜率控制信号达到其全部值。然后RC电路线性充电，直到步进输入的截止电压接近，此时放大器脱离饱和，并充当电压源，以将电容器指数地充电至截止电压。

97. 发明授权

US4673889A Apparatus and method for muting an output signal in a switching amplifier 失效
标题翻译：用于使开关放大器中的输出信号静音的装置和方法
公开(公告)号：US4673889A
公开(公告)日：1987-06-16
申请号：US809506
申请日：1985-12-16
申请人： Carlo Cini , Claudio Diazzi , Pietro Erratico
发明人： Carlo Cini , Claudio Diazzi , Pietro Erratico
IPC分类号： H03F3/217 , H03F1/00 , H03F1/30 , H03F3/20 , H03F3/30 , H03F3/38
CPC分类号： H03F3/217 , H03F1/305 , H03F3/3044
摘要： In an audio switching power amplifier, muting apparatus provided for eliminating noise signals associated with turn-on and turn-off operations of the apparatus is disclosed. The muting apparatus disables the output power amplifiers and controls signal levels at various positions in the power amplifier to reduce transient conditions. Control apparatus applies the muting signals to the power amplifier during a predetermined period during start-up of the amplifier and applies the muting conditions immediately upon the turning off of power to the power amplifier.
摘要翻译：在音频开关功率放大器中，公开了一种用于消除与该装置的导通和关断操作相关的噪声信号的静音装置。静音设备禁用输出功率放大器并控制功率放大器中各个位置的信号电平，以减少瞬态条件。控制装置在放大器启动期间的预定时段期间将功能放大器施加静音信号，并且在关闭功率放大器的电源时立即施加静音条件。

98. 发明授权

US4670720A Switching device for suppressing a signal 失效
标题翻译：用于抑制信号的开关装置
公开(公告)号：US4670720A
公开(公告)日：1987-06-02
申请号：US799877
申请日：1985-11-20
申请人： Eise C. Dijkmans
发明人： Eise C. Dijkmans
IPC分类号： H03F1/00 , H03F3/72 , H03G3/34 , H03K17/16 , H03K17/60 , H03F1/26
CPC分类号： H03F3/72 , H03G3/348
摘要： A switching device is provided for suppressing a signal. A signal source is connected to a first differential amplifier. The first differential amplifier receives an operating current from a current source. A second differential amplifier receives an operating current from a current source, and has an input connected to a common signal terminal. A conversion circuit connects the first differential amplifier and second differential amplifier outputs. An output amplifier is connected to the conversion circuit output for amplifying a single ended output of the conversion circuit. A signal from the output amplifier is suppressed by switching the operating current of said first differential amplifier and said output amplifier off, while simultaneously switching the operating current of the second differential amplifier on.
摘要翻译：提供用于抑制信号的开关装置。信号源连接到第一差分放大器。第一差分放大器从电流源接收工作电流。第二差分放大器从电流源接收工作电流，并具有连接到公共信号端子的输入端。 A转换电路连接第一差分放大器和第二差分放大器输出。输出放大器连接到转换电路输出端，用于放大转换电路的单端输出。通过在同时切换第二差分放大器的工作电流的同时切换所述第一差分放大器和所述输出放大器的工作电流来抑制来自输出放大器的信号。

99. 发明授权

US4516557A Ignition apparatus for internal combustion engine 失效
标题翻译：内燃机点火装置
公开(公告)号：US4516557A
公开(公告)日：1985-05-14
申请号：US486277
申请日：1983-03-02
申请人： Katsuyoshi Masuno , Tsutomu Kamata
发明人： Katsuyoshi Masuno , Tsutomu Kamata
IPC分类号： F02P5/145 , F02D45/00 , F02P7/02 , F02P1/00 , H02K11/00 , H03F1/00
CPC分类号： F02P7/025
摘要： An ignition apparatus for an internal combustion engine which includes a signal rotor on a rotary shaft for being rotated in synchronism with a coil wound about a core, a metal heat sink, and a frame connected to the heat sink so as to form a casing. The frame has a recess opening to its interior and grooves extending into the recess. An integrated circuit is disposed on the heat sink. The integrated circuit includes a capacitor electrically connected to the core coil to form a resonance circuit, an oscillation energy supply circuit for supplying oscillation energy to the resonance circuit, an oscillation detector circuit for producing an output signal in response to the detection of the oscillation in the resonance circuit, an amplifier for amplifying the output signal, and a switch for interrupting the amplified signal. An ignition coil responds to interruption of the amplified signal by the switch for generating a high voltage. The core coil is electrically connected to the capacitor by electrical conductors including electrical lead wires which extend from the recess in the grooves formed therein.
摘要翻译： PCT No.PCT / JP82 / 00313 Sec。 371日期1983年3月2日 102（e）1983年3月2日PCT PCT 1982年8月10日PCT公布。公开号WO83 / 00537 日本1983年2月17日。一种用于内燃机的点火装置，其包括在旋转轴上的信号转子，用于与卷绕在芯上的线圈同步旋转，金属散热器和连接到散热器的框架以形成套管。框架具有通向其内部的凹部和延伸到凹部中的凹槽。集成电路设置在散热器上。集成电路包括电连接到芯线圈以形成谐振电路的电容器，用于向谐振电路提供振荡能量的振荡能量供给电路，用于响应于振荡的检测而产生输出信号的振荡检测器电路谐振电路，用于放大输出信号的放大器和用于中断放大信号的开关。点火线圈响应于开关对放大信号的中断以产生高电压。芯线圈通过电导体电连接到电容器，电导体包括从其中形成的凹槽中的凹部延伸的电引线。

100. 发明授权

US4470135A Connection device with automatic disconnection of power supply when connection members are disconnected 失效
标题翻译：断开连接构件时，电源自动断开的连接装置
公开(公告)号：US4470135A
公开(公告)日：1984-09-04
申请号：US349679
申请日：1982-02-17
申请人： Akira Osanai
发明人： Akira Osanai
IPC分类号： H03F1/00 , G06F1/26 , G11B31/00 , G11B33/00 , H04B1/20 , H02J1/00
CPC分类号： H04B1/20 , G06F1/26 , G11B31/003
摘要： A connection device comprises a main body (14) including a power source (12) and a first unit (10) having two terminals to which power is supplied from the power source (12); and a connection body (24) including a second unit (20) having two terminals to which power is supplied from the power source when the connection body is connected to the main body.The connection device is characterized in that a connection means (4) includes a first connection portion (1) for connecting one terminal (a) of the first unit (10) to one terminal (c) of the second unit (20), a second connection portion (2) for connecting the other terminal (b) of the first unit (10) to the other terminal (d) of the second unit (20), and a third connection portion (3) for connecting said one terminal (c) of the second unit (20) to a terminal (f) of the power source (12), another terminal of the power source being connected to the other terminal (b) of the first unit (10) all of the connections being made when the connection body is connected to the main body.
摘要翻译：连接装置包括：主体（14），包括电源（12）和具有两个端子的第一单元（10），所述端子从所述电源（12）供电; 以及连接主体（24），包括具有两个端子的第二单元（20），当连接主体连接到主体时，具有从电源供电的两个端子。连接装置的特征在于，连接装置（4）包括用于将第一单元（10）的一个端子（a）连接到第二单元（20）的一个端子（c）的第一连接部分（1）用于将第一单元（10）的另一个端子（b）连接到第二单元（20）的另一个端子（d）的第二连接部分（2）和用于连接所述一个端子的第三连接部分（3） c）至所述电源（12）的端子（f），所述电源的另一个端子连接到所述第一单元（10）的另一个端子（b），所述连接为当连接主体连接到主体时制成。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式