公开(公告)号：US20040122881A1

公开(公告)日：2004-06-24

申请号：US10632530

申请日：2003-08-01

Applicant: STMicroelectronics Limited ,  STMicroelectronics S.r.l.

Inventor： Philip Mattos ,  Marco Losi

IPC: G06F017/15

CPC classification number: G01S19/37 ,  G01S19/24 ,  G01S19/29 ,  G01S19/30 ,  H04B1/708 ,  H04B1/709 ,  H04B2201/70715

Abstract: A semiconductor integrated circuit for processing a plurality of received broadcast signals, such as GPS signals, is operable in two modes: acquisition and tracking. In an acquisition mode, a memory arrangement comprising two circulating shift registers circulates samples of a received signal for correlation with a locally generated version of a GPS code. In a tracking mode, the sampled signal is provided direct to the correlators. The same correlators are thereby used to increase acquisition speed.

Abstract translation: 用于处理诸如GPS信号的多个接收的广播信号的半导体集成电路可以以两种模式进行操作：采集和跟踪。 在采集模式中，包括两个循环移位寄存器的存储装置循环接收信号的采样，以便与本地生成的GPS码版本相关。 在跟踪模式中，采样信号被直接提供给相关器。 因此，使用相同的相关器来提高采集速度。

公开(公告)号：US20040120385A1

公开(公告)日：2004-06-24

申请号：US10632566

申请日：2003-08-01

Applicant: STMicroelectronics Limited ,  STMicroelectronics S.r.I.

Inventor： Philip Mattos ,  Marco Losi

IPC: H04B001/707

CPC classification number: H04B1/7085 ,  G01S19/29 ,  G01S19/30 ,  H03H17/0664 ,  H04B1/70753 ,  H04B1/709 ,  H04B2201/70715

Abstract: A semiconductor integrated circuit for processing a plurality of received broadcast signals, such as GPS signals, is operable in two modes: acquisition and tracking. In an acquisition mode, sample reducer combines samples of a received signal for correlation with a locally generated version of a GPS code. In a tracking mode, the sampled signal is provided direct to the correlators without sample reduction. The same correlators are thereby used to increase acquisition speed.

Abstract translation: 用于处理诸如GPS信号的多个接收的广播信号的半导体集成电路可以以两种模式进行操作：采集和跟踪。 在采集模式中，采样减速器组合接收信号的样本，以便与本地生成的GPS码版本进行相关。 在跟踪模式中，采样信号直接提供给相关器而不需要样本减少。 因此，使用相同的相关器来提高采集速度。

公开(公告)号：US20040119618A1

公开(公告)日：2004-06-24

申请号：US10632564

申请日：2003-08-01

Applicant: STMicroelectronics Limited ,  STMicroelectronics S.r.I.

Inventor： Philip Mattos ,  Marco Losi

IPC: H03M009/00

CPC classification number: H03H17/0664 ,  G01S19/30

Abstract: A semiconductor integrated circuit for processing a plurality of received broadcast signals, such as GPS signals, is operable in two modes: acquisition and tracking. In an acquisition mode, a separate acquisition engine is used which includes a sample reducer for combining samples of a received signal for correlation with a locally generated version of a GPS code. A serial to parallel converter converts the reduced samples to parallel words which are correlated in parallel with locally generated words of the GPS code.

Abstract translation: 用于处理诸如GPS信号的多个接收的广播信号的半导体集成电路可以以两种模式进行操作：采集和跟踪。 在采集模式中，使用单独的采集引擎，其包括用于组合接收信号的采样以与本地生成的GPS码版本进行相关的采样减速器。 串行到并行转换器将缩减的样本转换成与GPS码的本地生成的字并行相关的并行字。