公开(公告)号：US20160286268A1

公开(公告)日：2016-09-29

申请号：US15078825

申请日：2016-03-23

Applicant: STMICROELECTRONICS, INC. ,  STMICROELECTRONICS (GRENOBLE 2) SAS

Inventor： Neil Robertson ,  Jean-Yves Couet

IPC: H04N21/442 ,  H04N21/61 ,  H04N21/647 ,  H04N21/437

CPC classification number: H04N21/44245 ,  H04N7/17309 ,  H04N21/437 ,  H04N21/6118 ,  H04N21/6168 ,  H04N21/6193

Abstract: An upstream signal capture device includes a signal capture circuit having a first port and a second port. The first port of the signal capture circuit is arranged for coupling to a diplexer. The upstream signal capture device also includes an amplifier having a first port and a second port, the first port of the amplifier coupled to the second port of the signal capture circuit, and an analog-to-digital converter (ADC) having a first port and a second port, the first port of the ADC coupled to the second port of the amplifier. The upstream signal capture device further includes a digital threshold detector having an input and output, the input of the digital threshold detector coupled to the second port of the analog-to-digital converter, and a memory configured to capture samples of the upstream signal. When using the upstream signal capture device to capture an upstream signal, a portion of an upstream signal is diverted into an analog-to-digital converter (ADC). A portion of the upstream signal is converted into a digital signal, and when the digital signal exceeds a threshold, the signal is captured in a memory.

Abstract translation: 上行信号捕获装置包括具有第一端口和第二端口的信号捕捉电路。 信号捕获电路的第一端口被布置成耦合到双工器。 上行信号捕获装置还包括具有第一端口和第二端口的放大器，耦合到信号捕获电路的第二端口的放大器的第一端口和模数转换器（ADC），其具有第一端口 和第二端口，ADC的第一端口耦合到放大器的第二端口。 所述上行信号捕获装置还包括具有输入和输出的数字阈值检测器，耦合到所述模数转换器的第二端口的数字阈值检测器的输入以及被配置为捕获所述上行信号的采样的存储器。 当使用上行信号捕获装置捕获上行信号时，上游信号的一部分被转移到模数转换器（ADC）中。 上游信号的一部分被转换为数字信号，当数字信号超过阈值时，该信号被捕获在存储器中。

公开(公告)号：US09948981B2

公开(公告)日：2018-04-17

申请号：US15078825

申请日：2016-03-23

Applicant: STMICROELECTRONICS, INC. ,  STMICROELECTRONICS (GRENOBLE 2) SAS

Inventor： Neil Robertson ,  Jean-Yves Couet

IPC: H04N21/442 ,  H04N21/437 ,  H04N21/61 ,  H04N7/173

CPC classification number: H04N21/44245 ,  H04N7/17309 ,  H04N21/437 ,  H04N21/6118 ,  H04N21/6168 ,  H04N21/6193

Abstract: An upstream signal capture device includes a signal capture circuit having a first port and a second port. The first port of the signal capture circuit is arranged for coupling to a diplexer. The upstream signal capture device also includes an amplifier having a first port and a second port, the first port of the amplifier coupled to the second port of the signal capture circuit, and an analog-to-digital converter (ADC) having a first port and a second port, the first port of the ADC coupled to the second port of the amplifier. The upstream signal capture device further includes a digital threshold detector having an input and output, the input of the digital threshold detector coupled to the second port of the analog-to-digital converter, and a memory configured to capture samples of the upstream signal. When using the upstream signal capture device to capture an upstream signal, a portion of an upstream signal is diverted into an analog-to-digital converter (ADC). A portion of the upstream signal is converted into a digital signal, and when the digital signal exceeds a threshold, the signal is captured in a memory.