公开(公告)号：US07228113B1

公开(公告)日：2007-06-05

申请号：US10818151

申请日：2004-04-05

申请人： Haiyun Tang ,  Hamid Aghajan ,  Karim Toussi ,  Ahmad Bahai

发明人： Haiyun Tang ,  Hamid Aghajan ,  Karim Toussi ,  Ahmad Bahai

IPC分类号： H04B1/02 ,  H04B17/00 ,  H04B1/10

CPC分类号： H04B7/0845 ,  H04B17/318

摘要： Apparatus and method for providing for packet data communication between a single-input-single-output (SISO) transceiver and a single-input-multiple-output/multiple-input-single-output (SIMO/MISO) transceiver. Receive channel coefficients representing relative strengths of individual signals received via multiple spatially diverse antenna elements and corresponding to a wireless data signal originating from a particular SISO radio frequency (RF) transceiver are used to provide substantially complementary transmit channel coefficients for use in producing outgoing RF signals to be transmitted via the same antenna elements for reception by such particular SISO RF transceiver.

摘要翻译： 用于提供单输入单输出（SISO）收发器和单输入多输出/多输入单输出（SIMO / MISO）收发器之间的分组数据通信的装置和方法。 接收通道系数表示通过多个空间多样的天线元件接收到的对应于来自特定SISO射频（RF）收发器的无线数据信号的各个信号的相对强度的信号系数，用于提供基本上互补的发射信道系数，用于产生出射RF信号 通过相同的天线元件传输，以便由这样的特定SISO RF收发器接收。

公开(公告)号：US07205923B1

公开(公告)日：2007-04-17

申请号：US11007057

申请日：2004-12-07

申请人： Ahmad Bahai

发明人： Ahmad Bahai

IPC分类号： H03M1/38

CPC分类号： H03M1/007 ,  H03M1/145

摘要： A pipelined analog to digital converter (ADC) that is arranged to dynamically adapt its resolution and sampling frequency based on at least a determined mode of communication and the strength of a received wireless signal. Since standby mode data is typically communicated with a relatively low number of bits (low resolution), the ADC provides for disabling at least a portion of its pipelined stages that provide the higher resolution bits if the standby communication mode is detected. By lowering the ADC's resolution for standby mode communication, it can conserve a considerable amount of power associated with the operation of the higher resolution bits. Similarly, relatively high resolution communication such as receiving and transmitting data and/or voice is process by the ADC by enabling sufficient pipelined stages to provide a higher number of bits.

摘要翻译： 一种流水线模数转换器（ADC），其被布置成基于至少一个确定的通信模式和所接收的无线信号的强度动态地适应其分辨率和采样频率。 由于待机模式数据通常以相对较低数量的位（低分辨率）进行通信，所以ADC提供禁用其流水线级的至少一部分，以便在检测到备用通信模式时提供较高分辨率位。 通过降低ADC的待机模式通信分辨率，可以节省与较高分辨率位的操作相关的相当大的功率。 类似地，通过使足够的流水线级提供更高数量的比特来处理ADC等相对较高分辨率的通信，例如接收和发送数据和/或语音。