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1. 发明授权

US06529787B2 Multimedia computer speaker system with bridge-coupled subwoofer 有权
标题翻译：具有桥接低音炮的多媒体电脑扬声器系统
公开(公告)号：US06529787B2
公开(公告)日：2003-03-04
申请号：US09440153
申请日：1999-11-15
申请人： Raymond K. Weikel , Jeffrey S. Anderson
发明人： Raymond K. Weikel , Jeffrey S. Anderson
IPC分类号： H06F1700
CPC分类号： H04S1/00 , H04R3/14
摘要： A multimedia computer speaker system includes a pair of amplifiers that provide amplified right and left audio signals to a pair of wide-band speakers. The amplifiers are configured to provide the amplified right and left audio signals that are out of phase with each other. The amplified right and left audio signals are applied to opposite terminals of the two wide-band speakers. These reversed terminal couplings to the wide-band speakers of the phase-reversed signals provide phase-aligned right and left audio playback at the speakers. A subwoofer and a low pass filter are connected as a bridge-tied load to receive the amplified right and left audio signals. The phase of one amplified audio signal is in effect reversed by applying it to the negative terminal of the subwoofer. As a result, low frequency components of a phase reversed amplified audio signal are summed by the subwoofer with low frequency components of the other amplified audio signal to provide a low frequency audio playback.
摘要翻译：多媒体电脑扬声器系统包括一对向一对宽带扬声器提供放大的左右音频信号的放大器。放大器被配置为提供彼此不同相位的放大的左右音频信号。放大的右和左音频信号被施加到两个宽带扬声器的相对端。相反反向信号的宽带扬声器的这些反向端子耦合在扬声器处提供相位对准的右和左音频播放。低音炮和低通滤波器作为桥接负载被连接以接收放大的左右音频信号。一个放大音频信号的相位实际上通过将其应用于重低音扬声器的负极端而被反转。结果，相位反转放大的音频信号的低频分量由具有另一放大音频信号的低频分量的低音炮相加，以提供低频音频播放。

2. 发明授权

US06567726B2 Vehicle driving support system, and steering angle detection device 有权
公开(公告)号：US06567726B2
公开(公告)日：2003-05-20
申请号：US10146886
申请日：2002-05-17
申请人： Kazuhiro Sakiyama , Toshihiro Shimizu , Kazuya Sako
发明人： Kazuhiro Sakiyama , Toshihiro Shimizu , Kazuya Sako
IPC分类号： H06F1700
CPC分类号： B60R1/00 , B60Q9/005 , B60Q9/007 , B60R2300/301 , B60R2300/302 , B60R2300/305 , B60R2300/806 , B60R2300/8086 , B60T2201/08 , B60T2201/089 , B60T2201/10 , B62D15/0275
摘要： A camera unit 10 is mounted on a vehicle 3. When an attempt is made to park the vehicle 3 in a parking lot, a predicted path 5a and guidelines 5b are displayed on an information display 4 together with an image. Data to be used for displaying the predicted path 5a and the guidelines 5b are stored beforehand in internal memory of an image processing circuit 19 provided in a parking assist ECU 6 so that the data can be selected in accordance with specifications, such as the type of the vehicle 3. The predicted path 5a is computed on the basis of a steering angle detected by a steering angle sensor provided in an exposed portion of the steering shaft 11. The length or color of the predicted path 5a is changed in accordance with the speed of the vehicle 3. Further, a vehicle driving support system is provided with a back sonar 17, and hence the length or color of the predicted path 5a is also changed in accordance with the result of detection of an obstacle.

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