Function selecting method and system for an audio/video recording and
reproducing system
    1.
    发明授权
    Function selecting method and system for an audio/video recording and reproducing system 失效
    功能选择方法和系统,用于音频/视频记录和再现系统

    公开(公告)号:US4525820A

    公开(公告)日:1985-06-25

    申请号:US245512

    申请日:1981-03-19

    CPC分类号: H04B1/202 G11B31/00

    摘要: An audio/video recording and reproducing system having a discrete function unit such as tape deck, record player or tuner connected thereto includes a function selection circuit and a function specifying switch disposed in a main unit, such as a pre/main amplifier, and a control line, such as remote control line, for connecting the main unit and the discrete unit. By virtue of the function selection circuit, the selection of a desired discrete function unit can be carried out at the main unit. However, in addition to this, the system includes an arrangement for permitting selection of a desired discrete function unit at the discrete function unit itself, and, when this is done, for controlling the function selection at the main unit to select the output of the discrete function unit.

    摘要翻译: 具有诸如磁带机,记录播放器或调谐器的离散功能单元的音频/视频记录和再现系统包括功能选择电路和设置在诸如前/主放大器的主单元中的功能选择电路和功能指定开关, 控制线,如遥控线,用于连接主机和离散机组。 凭借功能选择电路,可以在主单元处执行期望的离散功能单元的选择。 然而,除此之外,该系统包括用于允许在离散功能单元本身选择期望的离散功能单元的装置,并且当完成时,用于控制主单元处的功能选择以选择 离散功能单元。

    Function switching system for an audio/video apparatus
    3.
    发明授权
    Function switching system for an audio/video apparatus 失效
    用于音频/视频设备的功能切换系统

    公开(公告)号:US4496947A

    公开(公告)日:1985-01-29

    申请号:US368045

    申请日:1982-04-14

    CPC分类号: G11B31/00 H04B1/20

    摘要: In an audio recording and reproducing system comprising a combination of audio units including a record player, a tuner and a tape deck and an amplifier unit including a preamplifier, a function switching system comprises a control unit arranged in the amplifier unit including a signal selection circuit for selecting out one of outputs of the audio units to a speaker, a control circuit for controlling the signal selection circuit and function switches for supplying function selection signals to the control circuit, and control signal lines for coupling the control circuit of the control unit to the audio units. The signal selection circuit responds to the actuation of a start switch of the audio unit to assume the selected function mode through the control signal line and the control circuit and responds to the actuation of a function switch of the control unit to assume the selected function mode. One of the audio units is activated (to start play) and the other units are deactivated (to stop play) through the control signal lines. The functions of the audio units and the control unit can be switched from either one of the units.

    摘要翻译: 一种音频记录和再现系统,包括包括记录播放器,调谐器和磁带机的音频单元和包括前置放大器的放大器单元的组合,功能切换系统包括布置在放大器单元中的控制单元,包括信号选择电路 用于向扬声器选择音频单元的输出中的一个,用于控制信号选择电路的控制电路和用于向控制电路提供功能选择信号的功能开关,以及控制信号线,用于将控制单元的控制电路耦合到 音频单元。 信号选择电路响应音频单元的启动开关的启动,以通过控制信号线和控制电路采取选定的功能模式,并响应控制单元的功能开关的启动以采取选定的功能模式 。 一个音频单元被激活(开始播放),其他单元通过控制信号线被去激活(停止播放)。 音频单元和控制单元的功能可以从任何一个单元切换。

    Radio system, radio transmitter, and radio receiver
    4.
    发明授权
    Radio system, radio transmitter, and radio receiver 失效
    无线电系统,无线电发射机和无线电接收机

    公开(公告)号:US07769358B2

    公开(公告)日:2010-08-03

    申请号:US10593709

    申请日:2005-03-23

    IPC分类号: H04B1/00

    摘要: A radio system having an improved phase noise characteristic and a thereby improved communication quality, a radio transmitter, and a radio receiver. In the radio system, a radio transmitter (101) transmits a multiplexed signal so multiplexed that a pilot signal transmitted at the center frequency. A radio receiver (151) comprises an antenna (152) for receiving a radio signal from the radio transmitter (101), a distributor (159) for distributing the received signal received by the antenna (152) to two directions, a bandpass filter (160) for extracting a signal component corresponding to the pilot signal having the same center frequency as one of the distributed signals distributed by the distributor (159), a delay corrector (162) for delaying the other of the distributed signals, and a quadrature demodulator (163) for multiplying the frequency of the signal component corresponding to the pilot signal extracted by the bandpass filter (160) by the frequency of the other signal delayed by the delay corrector (162) and performing quadrature demodulation.

    摘要翻译: 具有改进的相位噪声特性和由此改善的通信质量的无线电系统,无线电发射机和无线电接收机。 在无线电系统中,无线电发射机(101)发送多路复用的复用信号,使得以中心频率发送的导频信号。 无线电接收器(151)包括用于从无线电发射机(101)接收无线电信号的天线(152),用于将由天线(152)接收的接收信号分配给两个方向的分配器(159),带通滤波器 160),用于提取与由分配器(159)分配的分布式信号之一具有相同中心频率的导频信号的信号分量,用于延迟分配信号中的另一个的延迟校正器(162)和正交解调器 (163),用于将与由带通滤波器(160)提取的导频信号相对应的信号分量的频率乘以由延迟校正器(162)延迟的另一个信号的频率,并执行正交解调。

    Radio System and Radio Communication Device
    5.
    发明申请
    Radio System and Radio Communication Device 审中-公开
    无线电系统和无线电通信设备

    公开(公告)号:US20080233878A1

    公开(公告)日:2008-09-25

    申请号:US10593698

    申请日:2005-03-23

    IPC分类号: H04B1/00 H04B1/16

    摘要: There are provided a radio system and a radio communication device capable of removing a phase noise superimposed on a reception signal and a phase noise generated in the system of a reception radio unit. In this system, a radio transmission device (101) transmits a multiplex signal multiplexed so that a pilot signal is placed on the center frequency. A radio reception device (151) frequency-multiplies a reception signal by a pilot signal having the same frequency error and phase noise as the reception signal, and frequency-multiplies the phase noise contained in a local oscillation signal used when subjecting the reception signal to frequency conversion, by using the signal having the same phase noise. Thus, it is possible to remove the frequency error and phase noise contained in the reception signal and the phase noise in the reception system.

    摘要翻译: 提供一种无线电系统和能够消除叠加在接收信号上的相位噪声的无线电通信装置和在接收无线电单元的系统中产生的相位噪声。 在该系统中,无线发送装置(101)发送多路复用信号,使得导频信号位于中心频率上。 无线接收装置(151)通过与接收信号相同的频率误差和相位噪声的导频信号对接收信号进行频率乘法,并且对接收信号进行接收时使用的本地振荡信号中包含的相位噪声进行频率乘法运算 通过使用具有相同相位噪声的信号进行频率转换。 因此,可以消除接收信号中包含的频率误差和相位噪声以及接收系统中的相位噪声。

    Resin composition for insulating material, and insulating material produced from said resin composition
    6.
    发明授权
    Resin composition for insulating material, and insulating material produced from said resin composition 失效
    用于绝缘材料的树脂组合物和由所述树脂组合物制备的绝缘材料

    公开(公告)号:US06410677B1

    公开(公告)日:2002-06-25

    申请号:US09670867

    申请日:2000-09-27

    IPC分类号: C08G7300

    摘要: The present invention provides an insulating material showing excellent thermal propeties and electrical properties in semiconductor applications. That is, the present invention provides: a resin composition for insulating material, comprising, as essential components: (A) a compound having an amphiphatic property, and (B) a heat-resistant resin having a glass transition temperature higher than thermal decomposition temperature of the compound (A), or a precursor thereof; and an insulating material produced by a process which comprises steps of; allowing, in the above resin composition for insulating material, the compound (A) and the heat-resistance resin or the precursor thereof (B) to form a structure of separated phases, and then heat-treating the resulting resin composition at a temperature higher than thermal decomposition temperature of the compound (A) but lower than glass transition temperature of the heat-resistant resin (B) or the heat-resistant resin obtained by ring closure of the precursor thereof.

    摘要翻译: 本发明提供一种绝缘材料,其在半导体应用中显示优异的热性能和电性能。 也就是说,本发明提供一种绝缘材料用树脂组合物,其特征在于,含有作为必要成分的(A)具有双键性质的化合物,(B)玻璃化转变温度高于热分解温度的耐热性树脂 的化合物(A)或其前体; 以及通过包括以下步骤的方法制造的绝缘材料: 在上述绝缘材料用树脂组合物中,使化合物(A)和耐热性树脂或其前体(B)形成分离相的结构,然后在较高温度下对所得树脂组合物进行热处理 比化合物(A)的热分解温度低,但低于耐热树脂(B)的玻璃化转变温度或通过其前体的闭环获得的耐热树脂。

    Power amplifier
    7.
    发明授权
    Power amplifier 失效
    功率放大器

    公开(公告)号:US06239656B1

    公开(公告)日:2001-05-29

    申请号:US09494541

    申请日:2000-01-31

    IPC分类号: H03F368

    摘要: The present invention is a microwave power amplifier using a balanced amplifier. The present invention uses one output port of a hybrid power combiner as a port to detect distortion of the amplifier circuit. To eliminate noise superimposed over a normal signal, the detected distortion is fed forward to the normal amplified signal via an adjustment circuit and directional coupler.

    摘要翻译: 本发明是使用平衡放大器的微波功率放大器。 本发明使用混合功率组合器的一个输出端口作为端口来检测放大器电路的失真。 为了消除叠加在正常信号上的噪声,检测到的失真通过调节电路和定向耦合器被馈送到正常的放大信号。

    Radio System, Radio Transmitter, and Radio Receiver
    8.
    发明申请
    Radio System, Radio Transmitter, and Radio Receiver 失效
    无线电系统,无线电发射机和无线电接收机

    公开(公告)号:US20080233879A1

    公开(公告)日:2008-09-25

    申请号:US10593709

    申请日:2005-03-23

    IPC分类号: H04B1/00 H04B1/16 H04B1/02

    摘要: A radio system having an improved phase noise characteristic and a thereby improved communication quality, a radio transmitter, and a radio receiver. In the radio system, a radio transmitter (101) transmits a multiplexed signal so multiplexed that a pilot signal transmitted at the center frequency. A radio receiver (151) comprises an antenna (152) for receiving a radio signal from the radio transmitter (101), a distributor (159) for distributing the received signal received by the antenna (152) to two directions, a bandpass filter (160) for extracting a signal component corresponding to the pilot signal having the same center frequency as one of the distributed signals distributed by the distributor (159), a delay corrector (162) for delaying the other of the distributed signals, and a quadrature demodulator (163) for multiplying the frequency of the signal component corresponding to the pilot signal extracted by the bandpass filter (160) by the frequency of the other signal delayed by the delay corrector (162) and performing quadrature demodulation.

    摘要翻译: 具有改进的相位噪声特性和由此改善的通信质量的无线电系统,无线电发射机和无线电接收机。 在无线电系统中,无线电发射机(101)发送多路复用的复用信号,使得以中心频率发送的导频信号。 无线电接收器(151)包括用于从无线电发射机(101)接收无线电信号的天线(152),用于将由天线(152)接收的接收信号分配给两个方向的分配器(159),带通滤波器 160),用于提取与由分配器(159)分配的分布式信号之一具有相同中心频率的导频信号的信号分量,用于延迟分配信号中的另一个的延迟校正器(162)和正交解调器 (163),用于将与由带通滤波器(160)提取的导频信号相对应的信号分量的频率乘以由延迟校正器(162)延迟的另一个信号的频率,并执行正交解调。

    Material for electrical insulating organic film, electrical insulating organic film and process for the preparation thereof
    9.
    发明授权
    Material for electrical insulating organic film, electrical insulating organic film and process for the preparation thereof 失效
    电绝缘有机薄膜材料,电绝缘有机薄膜及其制备方法

    公开(公告)号:US06380271B1

    公开(公告)日:2002-04-30

    申请号:US09604675

    申请日:2000-06-27

    IPC分类号: C08J900

    CPC分类号: C08G73/22 H05K3/285

    摘要: The present invention provides a material for electrical insulating organic film, superior in electrical properties, thermal properties and low water absorption; an electrical insulating organic film made from the material; and a process for production of the film. That is, the present invention provides an electrical insulating organic film having fine pores, consisting of a layer of a polybenzoxazole resin represented by the following general formula (1): wherein n is an integer of 2 to 1,000; X is a tetravalent organic group; and Y is a bivalent organic group; a material for electrical insulating organic film obtained by mixing a polybenzoxazole precursor or a polybenzoxazole resin, with an oligomer; and a material for electrical insulating organic film, obtained by reacting at least one carboxylic acid terminal of a polybenzoxazole precursor with an amino group- or hydroxyl group-containing oligomer. The above electrical insulating organic film is produced by a process which comprises mixing a polybenzoxazole precursor or a polybenzoxazole resin with an oligomer, forming a film from the resulting mixture, and heating the film to give rise to thermal decomposition and gasification of the oligomer, to obtain a polybenzoxazole resin layer having fine pores; or by a process which comprises reacting at least one carboxylic acid terminal of a polybenzoxazole precursor with an amino group- or hydroxyl group-containing oligomer to synthesize a material for electrical insulating organic film, forming a film from the material, heating the film to give rise to ring closure of the polybenzoxazole precursor, further heating the resulting material to give rise to thermal decomposition and gasification of the oligomer group, to obtain a polybenzoxazole resin layer having fine pores.

    摘要翻译: 本发明提供一种电绝缘性有机膜的材料,其电性,热性能和吸水性低; 由该材料制成的电绝缘有机膜; 以及该膜的制造方法。 也就是说,本发明提供一种具有细孔的电绝缘性有机膜,由以下通式(1)表示的聚苯并恶唑树脂层组成:其中n为2〜1,000的整数; X是四价有机基团; Y为二价有机基团; 通过将聚苯并恶唑前体或聚苯并恶唑树脂与低聚物混合而获得的电绝缘性有机膜的材料; 以及通过使聚苯并恶唑前体的至少一个羧酸末端与含氨基或羟基的低聚物反应而获得的电绝缘性有机膜的材料。 上述电绝缘性有机膜通过以下方法制造,该方法包括将聚苯并恶唑前体或聚苯并恶唑树脂与低聚物混合,从所得混合物形成膜,并加热该膜以引起低分子的热分解和气化, 得到具有细孔的聚苯并恶唑树脂层; 或通过包括使聚苯并恶唑前体的至少一个羧酸末端与含氨基或羟基的低聚物反应以合成电绝缘有机膜的材料,从该材料形成膜,加热该膜以得到 引起聚苯并恶唑前体闭环,进一步加热所得材料,引起低聚物基团的热分解和气化,得到具有细孔的聚苯并恶唑树脂层。

    Transmission circuit with improved gain control loop
    10.
    发明授权
    Transmission circuit with improved gain control loop 失效
    传输电路具有改进的增益控制回路

    公开(公告)号:US5659893A

    公开(公告)日:1997-08-19

    申请号:US341186

    申请日:1994-11-18

    IPC分类号: H03G3/30 H04B1/04

    CPC分类号: H03G3/3047 H03G3/3042

    摘要: In a transmission circuit, part of the output signal of the transmission circuit is diverted by an output monitor circuit and subjected to envelope detection by an output detector circuit. The output signal of the output detector circuit is inputted to a peak hold circuit successively holding the peaks of the input signal, so that varying amplitude components are removed, and a DC value is detected. An error detector circuit compares the detected value with a reference signal from a reference signal generator circuit, and the error signal is used as a gain control signal to control the gain of a power amplifier circuit.

    摘要翻译: 在发送电路中,发送电路的输出信号的一部分被输出监视电路转移,并通过输出检测电路进行包络检测。 输出检测器电路的输出信号被输入到保持输入信号的峰值的峰值保持电路,从而去除变化的振幅分量,并检测DC值。 误差检测器电路将检测值与来自参考信号发生器电路的参考信号进行比较,并将误差信号用作增益控制信号以控制功率放大器电路的增益。