公开(公告)号：US5442709A

公开(公告)日：1995-08-15

申请号：US192505

申请日：1994-02-03

申请人： Lothar Vogt ,  Jurgen Kasser ,  Djahanvar Chahabadi

发明人： Lothar Vogt ,  Jurgen Kasser ,  Djahanvar Chahabadi

IPC分类号： H04B1/16 ,  H04H1/00 ,  H04H20/48 ,  H04H5/00

CPC分类号： H04H20/48 ,  H04B1/1646

摘要： In a circuit for decoding a multiplex signal in a stereo receiver, where the multiplex signal contains a composite signal (L+R) in the base band, a subcarrier modulated with a difference signal (L-R), and a pilot signal with half the frequency of the subcarrier, the multiplex signal in digital form is multiplied (2, 3) by a reference carrier generated with a sampling clock signal (14) produced in the radio receiver, where the reference carrier is present in two phase positions shifted 90.degree. with respect to each other. The mix or product signals resulting from this multiplication are multiplied (4, 5) by one correction signal each, thus forming corrected mix signals. The corrected mix signals are added (6) and supplied to a matrix circuit (8, 9), together with the composite signal, to create respective stereo audio channel signals (L, R).

摘要翻译： 在用于解码立体声接收机中的复用信号的电路中，其中多路复用信号包含基带中的复合信号（L + R），用差分信号（LR）调制的副载波，以及具有一半频率的导频信号 通过在无线电接收机中产生的采样时钟信号（14）产生的参考载波将数字形式的多路复用信号乘以（2,3），其中参考载波存在于以90度移动的两个相位中，与 相互尊重 由该乘法产生的混合或乘积信号各自乘以一个校正信号（4,5），从而形成校正的混合信号。 校正的混合信号与复合信号一起被加到（6）并提供给矩阵电路（8,9），以产生相应的立体声声道信号（L，R）。

公开(公告)号：US5317313A

公开(公告)日：1994-05-31

申请号：US074333

申请日：1993-06-09

申请人： Jurgen Kasser

发明人： Jurgen Kasser

IPC分类号： H03M1/12 ,  H03M1/20 ,  H03M1/40

CPC分类号： H03M1/208

摘要： In an A/D converter for electrical signals, the difference, between the instantaneous analog input signal Y(t) and a previous analog signal value Y(t-T), is converted in a fast analog-to-digital converter (3) to a digital sum value. This sum value is added to the preceding digital value, stored in a buffer memory (7, 7'), and the result is fed to a slow but precise D/A converter (2) for generation of the next Y(t-T) value. This has the advantage that good results can be obtained with A/D converters less expensive than those heretofore required to obtain such results.

摘要翻译： 在用于电信号的A / D转换器中，瞬时模拟输入信号Y（t）和先前的模拟信号值Y（tT）之间的差在快速模数转换器（3）中被转换成 数字和值。 将该和值加到先前的数字值中，存储在缓冲存储器（7,7'）中，并将结果馈送到慢但精确的D / A转换器（2），以产生下一个Y（tT）值 。 这具有以下优点：A / D转换器可以获得比迄今为止所需的结果更便宜的结果。

公开(公告)号：US5247705A

公开(公告)日：1993-09-21

申请号：US671261

申请日：1991-03-18

申请人： Joachim Attig ,  Jurgen Kasser ,  Helmut Liman ,  Matthias Scholz

发明人： Joachim Attig ,  Jurgen Kasser ,  Helmut Liman ,  Matthias Scholz

IPC分类号： H04Q9/00 ,  B60R16/02 ,  B60R16/037

CPC分类号： B60R16/0373

摘要： A combination broadcast receiver and mobile telephone for motor vehicles is disclosed, in which acoustically operating devices are always switched off in the motor vehicle when a voice command detection circuit is switched on.

摘要翻译： 公开了一种用于机动车辆的组合广播接收机和移动电话机，其中当语音指令检测电路被接通时，声学操作装置总是在机动车辆中关闭。

公开(公告)号：US4476582A

公开(公告)日：1984-10-09

申请号：US484569

申请日：1983-04-13

申请人： Karl-Peter Strauss ,  Jurgen Kasser

发明人： Karl-Peter Strauss ,  Jurgen Kasser

IPC分类号： H04B1/16 ,  H03J1/00 ,  H03J5/00 ,  H03J5/02 ,  H04B1/06 ,  H03J7/20

CPC分类号： H03J1/0066

摘要： The location coordinates, as well as the transmitting station frequencies, of stations that broadcast the same programs by network arrangements or otherwise, are stored so that when a particular program (network) is selected, all these stations broadcasting the same program as a station being listened to which are not more than a prescribed maximum distance from the station being listened to, may be listed in a table in a working store. While a particular station is being listened to, therefore, continuous checking of the station being listened to with other stations broadcasting the same program for relative reception quality can be carried out automatically while a station is being listened to in a moving vehicle, without taking into account the signals broadcast by stations that are too far away. As soon as some other station broadcasting the same program is found to provide better reception, it is automatically tuned in, and from then on the distance criterion is referred to the location of the new station, a new set of stations for signal comparison is selected and the comparative signal checking process is continued automatically.

摘要翻译： 存储通过网络布置或其他方式广播相同节目的站的位置坐标以及发射站频率，使得当选择特定节目（网络）时，所有这些站播放与站相同的节目 听不到从正在听的车站规定的最大距离，可以列在工作店的桌子上。 在正在听特定车站的同时，可以在站在正在被移动的车辆中被收听的情况下自动地进行与广播相同节目的其他站相关接收质量正在收听的台站的连续检查，而不进入 记录由太远的车站广播的信号。 一旦发现了其他广播相同节目的其他台站提供更好的接收，则它被自动调谐，并且从那时起，距离标准被称为新站的位置，选择用于信号比较的一组新的站 并且自动继续比较信号检查处理。