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1. 发明授权

US09002035B2 Graphical audio signal control 有权
标题翻译：图形音频信号控制
公开(公告)号：US09002035B2
公开(公告)日：2015-04-07
申请号：US13367696
申请日：2012-02-07
申请人： Yasuyuki Umeyama , Kazunobu Kondo , Yu Takahashi , Jordi Bonada , Jordi Janer , Ricard Marxer
发明人： Yasuyuki Umeyama , Kazunobu Kondo , Yu Takahashi , Jordi Bonada , Jordi Janer , Ricard Marxer
IPC分类号： H04B1/00 , G11B20/10 , H03G5/00 , H03G5/16 , H03G5/18 , H04S7/00
CPC分类号： G11B20/10527 , G10H2210/305 , G10H2220/116 , G10H2250/235 , G11B2020/10564 , G11B2020/10574 , H03G5/005 , H03G5/165 , H03G5/18 , H04R2430/01 , H04S7/305 , H04S7/307 , H04S7/40 , H04S2400/13 , H04S2420/07
摘要： Signal processing section of a terminal converts acquired audio signals of a plurality of channels into frequency spectra set, calculates sound image positions corresponding to individual frequency components, and displays, on a display screen, the calculated sound image positions results by use of a coordinate system having coordinate axes of the frequency components and sound image positions. User-designated partial region of the coordinate system is set as a designated region and an amplitude-level adjusting amount is set for the designated region, so that the signal processing section adjusts amplitude levels of frequency components included in the frequency spectra and in the designated region, converts the adjusted frequency components into audio signals and outputs the converted audio signals.
摘要翻译：终端的信号处理部将所获取的多个频道的音频信号变换为频谱集，计算与各个频率成分对应的声像位置，并在显示画面上使用坐标系显示计算出的声像位置的结果具有频率分量和声像位置的坐标轴。坐标系的用户指定的部分区域被设置为指定区域，并且为指定区域设置幅度电平调整量，使得信号处理部分调整频谱中包括的频率分量的振幅水平，并且在指定的将经调整的频率分量转换成音频信号并输出转换的音频信号。

2. 发明授权

US5050217A Dynamic noise reduction and spectral restoration system 失效
标题翻译：动态降噪和频谱恢复系统
公开(公告)号：US5050217A
公开(公告)日：1991-09-17
申请号：US482063
申请日：1990-02-16
申请人： Robert A. Orban
发明人： Robert A. Orban
IPC分类号： H03G5/16 , H03G5/18 , H04B1/12
CPC分类号： H03G5/18 , H03G5/165 , H04B1/123
摘要： An audio processor consisting of a "single-ended" dynamic noise reduction system cascaded and cross-coupled with a program-adaptive dynamic equalizer. The audio at the output has a consistent subjective spectral texture even if the spectral texture of the input audio varies widely. Further, although the system often adds high frquency energy to the audio, it does not increase the perceived noise level and is free from audible noise modulation.
摘要翻译：由“单端”动态降噪系统组成的音频处理器，与系统自适应动态均衡器级联并交叉耦合。即使输入音频的频谱纹理变化很大，输出端的音频也具有一致的主观频谱结构。此外，虽然系统经常向音频添加高频率能量，但是它不会增加感知到的噪声电平并且没有可听见的噪声调制。

3. 发明授权

US4839610A System for automatically controlling the gain-bandwidth product of operational amplifiers 失效
标题翻译：用于自动控制运算放大器增益带宽乘积的系统
公开(公告)号：US4839610A
公开(公告)日：1989-06-13
申请号：US119190
申请日：1987-11-10
申请人： Michelangelo Mazzucco , Vanni Poletto , Mario Sartori
发明人： Michelangelo Mazzucco , Vanni Poletto , Mario Sartori
IPC分类号： H03F1/30 , H03G1/04 , H03G5/16 , H03G5/18 , H03H11/12
CPC分类号： H03G1/04 , H03G5/18 , H03H11/1291
摘要： A system for automatically controlling the gain-bandwidth product of operational amplifiers, wherein a gain-bandwidth product (G*B) of one of the amplifiers placed on the same chip as the amplifiers to be controlled is measured and the resulting signal is used to control through a bias circuit, the gain-bandwidth products of all the amplifiers, the value of these products being presettable by the frequeny of a control signal sent to the system input. The reference amplifier is highly compensated in the configuration of voltage follower.

4. 发明授权

US4761829A Adaptive signal strength and/or ambient noise driven audio shaping system 失效
标题翻译：自适应信号强度和/或环境噪声驱动音频整形系统
公开(公告)号：US4761829A
公开(公告)日：1988-08-02
申请号：US802641
申请日：1985-11-27
申请人： Charles N. Lynk, Jr. , Gerald P. Labedz
发明人： Charles N. Lynk, Jr. , Gerald P. Labedz
IPC分类号： H03G3/32 , H03G5/18 , H04B1/10 , H03J1/16
CPC分类号： H03G3/32 , H03G5/18 , H04B1/1027
摘要： An adaptive audio filter system is disclosed which comprises a filter means capable of producing a plurality of frequency response characteristics. A control signal generating means provides a control signal to the filter means to enable a particular frequency response. The control signal is based upon the signal to noise ratio.
摘要翻译：公开了一种自适应音频滤波器系统，其包括能够产生多个频率响应特性的滤波器装置。控制信号发生装置向滤波器装置提供控制信号，以实现特定的频率响应。控制信号基于信噪比。

5. 发明授权

US4710962A Signal control apparatus 失效
标题翻译：信号控制装置
公开(公告)号：US4710962A
公开(公告)日：1987-12-01
申请号：US797664
申请日：1985-11-13
申请人： Toshiyuki Matsui
发明人： Toshiyuki Matsui
IPC分类号： H03G9/00 , H03G5/16 , H03G5/18 , H03G5/00
CPC分类号： H03G5/165 , H03G5/18
摘要： A signal control apparatus includes a circuit (26) for bearing a first characteristic to an original signal and outputting it as a first signal; a circuit (28) for bearing a second characteristic to the original signal and outputting it as a second signal; an adder circuit (30; 50) for adding the first and second signal with a variable proportion therebetween; and a control circuit (38) for controlling the variable proportion in accordance with the original signal in order to vary the output signal characteristic continuously.
摘要翻译：信号控制装置包括用于承载原始信号的第一特性并将其作为第一信号输出的电路（26）用于向原始信号承载第二特性并将其作为第二信号输出的电路（28）; 加法器电路（30; 50），用于将第一和第二信号之间的可变比例相加; 以及用于根据原始信号控制可变比例以便连续地改变输出信号特性的控制电路（38）。

6. 发明授权

US4644292A Automatic gain and frequency characteristic control unit in audio device 失效
标题翻译：音频设备中的自动增益和频率特性控制单元
公开(公告)号：US4644292A
公开(公告)日：1987-02-17
申请号：US739953
申请日：1985-05-31
申请人： Yoshiro Kunugi , Makoto Odaka , Takeshi Sato , Yoshio Sasaki , Akio Tokumo
发明人： Yoshiro Kunugi , Makoto Odaka , Takeshi Sato , Yoshio Sasaki , Akio Tokumo
IPC分类号： H03G3/32 , H03G5/18 , H03G3/18
CPC分类号： H03G5/18 , H03G3/32
摘要： An automatic gain control unit particularly adapted for vehicular use is disclosed. The ambient noise level inside the vehicle is detected, as is the level of the audio signal. A difference is formed between detection signals thus produced, and a frequency characteristic of a gain varying device, inserted in an audio signal path of the audio device, is varied according to this difference.
摘要翻译：公开了一种特别适用于车辆用途的自动增益控制单元。检测车辆内部的环境噪声水平，以及音频信号的电平。在这样产生的检测信号之间形成差异，并且插入音频装置的音频信号路径中的增益改变装置的频率特性根据该差异而变化。

7. 发明授权

US4539526A Adaptive signal weighting system 失效
标题翻译：自适应信号加权系统
公开(公告)号：US4539526A
公开(公告)日：1985-09-03
申请号：US462372
申请日：1983-01-31
申请人： Mark F. Davis
发明人： Mark F. Davis
IPC分类号： H04B1/62 , G11B5/027 , G11B20/04 , H03G5/16 , H03G5/18 , H03G9/02 , H04B1/64 , H03G3/20 , H03F3/68
CPC分类号： H03G9/025 , H03G5/165 , H03G5/18
摘要： An adaptive signal weighting system is disclosed for use in transmitting an electrical information signal of a predetermined bandwidth along a signal path. The system can be used to encode or decode the signal. The system comprises filter means disposed in the signal path for varying the gain impressed on the portion of the information signal within a first select spectral region within the preselected bandwidth. The gain is varied in response to and as a function of a first control signal. Means are provided means for generating the first control signal in response to and in accordance with the signal energy of the information signal substantially within at least a part of the first select spectral region. The system also comprises gain control means disposed in the signal path and coupled to the filter means for varying the signal gain impressed on the information signal substantially throughout the predetermined bandwidth, the signal gain varying in response to and as a function of a second control signal; and means for generating the second control signal in response to and as a function of the signal energy of the information signal within at least one other select spectral region of the information signal.
摘要翻译：公开了一种用于沿着信号路径发送预定带宽的电信息信号的自适应信号加权系统。该系统可用于对信号进行编码或解码。该系统包括设置在信号路径中的滤波器装置，用于改变在预选带宽内的第一选择频谱区域内的信息信号部分上的增益。响应于第一控制信号并且作为第一控制信号的函数，增益是变化的。提供装置，用于响应于并且根据信息信号的信号能量，基本上在第一选择光谱区域的至少一部分内产生第一控制信号。该系统还包括设置在信号路径中并被耦合到滤波器装置的增益控制装置，用于基本上在整个预定带宽内改变施加在信息信号上的信号增益，信号增益响应于第二控制信号而变化 ; 以及用于响应于信息信号的至少一个其他选择光谱区域内的信息信号的信号能量并根据信号信号的函数产生第二控制信号的装置。

8. 发明授权

US4379207A Automatic noise eliminating device for an FM receiver 失效
标题翻译： FM接收机的自动消噪装置
公开(公告)号：US4379207A
公开(公告)日：1983-04-05
申请号：US187712
申请日：1980-09-16
申请人： Masaki Kubota
发明人： Masaki Kubota
IPC分类号： H04B1/10 , H03G5/18 , H04B1/16 , H04H5/00
CPC分类号： H04B1/1684 , H03G5/18
摘要： In an FM receiver having cutoff circuits for cutting off higher frequency signal components of an audio signal, and for reducing stereo separation between channels, there is provided a multipath detector for detecting an amplitude modulated FM intermediate frequency signal and outputting a control signal depending on the magnitude of the amplitude modulated FM intermediate frequency signal into the cutoff circuit so that the high frequency noise due to multipath transmission can be eliminated. The invention is particularly suited to use with a stereo FM receiver mounted in an automotive vehicle, but may equally be applied to a mono receiver, or a receiver in any location.
摘要翻译：在具有用于切断音频信号的较高频率信号分量的截止电路并且用于减小信道之间的立体声间隔的FM接收机中，提供了一种用于检测调幅FM中频信号的多路径检测器，并且根据该信号输出控制信号幅度调制的FM中频信号的幅度进入截止电路，使得可以消除由于多路径传输引起的高频噪声。本发明特别适用于安装在机动车辆中的立体声FM接收机，但也可以同样应用于单声道接收机或任何位置的接收机。

9. 发明授权

US4347404A Control device for an automotive vehicle FM radio 失效
标题翻译：汽车调频收音机的控制装置
公开(公告)号：US4347404A
公开(公告)日：1982-08-31
申请号：US163280
申请日：1980-06-26
申请人： Teruo Kawasaki
发明人： Teruo Kawasaki
IPC分类号： H03G5/18 , H04B1/10 , H04B1/16 , H04H1/00 , H04H40/81 , H04H5/00
CPC分类号： H04H40/81 , H03G5/18 , H04B1/1646
摘要： A control device for an FM car radio in which low frequency characteristics of the audio output signal are switched so that stereophonic music programs can be reproduced with enough bass sound and monaural speech or news programs can be reproduced without much bass sound but with desirable articulation. One embodiment of the device comprises a capacitor-resistor filter connected in series between the amplifier and the speaker for attenuating low frequency characteristics of an audio output signal only when monaural broadcasting is being received, a transistor for shorting the filter to send bass sound directly to the speaker only when stereophonic broadcasting is being received, and a pilot signal discriminator which outputs pilot signals to turn on the transistor only when stereophonic broadcasting is being received.
摘要翻译：用于FM汽车无线电的控制装置，其中音频输出信号的低频特性被切换，使得可以用足够的低音和单声道语音或新闻节目再现立体声音乐节目，而无需低音，而是具有期望的发音。该装置的一个实施例包括串联连接在放大器和扬声器之间的电容电阻滤波器，用于仅在接收到单声道广播时衰减音频输出信号的低频特性，用于使滤波器短路以将低音发出直接发送到扬声器仅在正在接收立体声广播时，以及导频信号鉴别器，其仅在接收立体声广播时输出导频信号才能接通晶体管。

10. 发明授权

US4221930A FM Defect compensation apparatus 失效
标题翻译： FM缺陷补偿装置
公开(公告)号：US4221930A
公开(公告)日：1980-09-09
申请号：US29152
申请日：1979-04-11
申请人： Yoshihiro Okuno
发明人： Yoshihiro Okuno
IPC分类号： H04B1/10 , G11B20/06 , H03G3/34 , H03G5/18 , H04S1/00 , H04N5/76
CPC分类号： H03G3/345 , H03G5/18
摘要： In systems which process frequency modulated carrier waves, such as video disc systems, video tape recorder/playback systems and radio systems, there are occasions where the FM signal suddenly drops to a low level. In the case of FM audio signals, these sudden drops result in objectionable tics and pops in the demodulated audio output. The apparatus described herein reduces these objectionable noises by utilizing a variable impedance in connection with a deemphasis circuit in the main signal path. Upon the occurrence of a signal dropout, a defect indication signal is provided to the variable impedance device. The deemphasis circuit has an overall time constant which includes the variable impedance device and which varies in accordance with the detected signal dropouts so as to provide a substantially smooth demodulated output signal whereby tics and pops, in the output audio signal, are substantially removed.
摘要翻译：在处理频率调制载波的系统中，例如视频盘系统，录像机/回放系统和无线电系统，有时候FM信号突然降低到低电平。在FM音频信号的情况下，这些突然的下降导致在解调的音频输出中令人反感的抽搐和流淌。本文描述的装置通过利用与主信号路径中的去加重电路相关的可变阻抗来减少这些令人不快的噪声。在出现信号丢失时，向可变阻抗装置提供缺陷指示信号。去加重电路具有总时间常数，其包括可变阻抗装置，并且其根据检测到的信号丢失而变化，以便提供基本平滑的解调输出信号，从而基本上去除输出音频信号中的抽搐和流出。

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