公开(公告)号：US20170242130A1

公开(公告)日：2017-08-24

申请号：US15591510

申请日：2017-05-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Daniel BABITCH ,  Steven A. GRONEMEYER ,  Nicolas VANTALON

IPC: G01S19/23

CPC classification number: G01S19/23 ,  G01S19/235 ,  G01S19/34

Abstract: Methods, systems, and devices for monitoring a Real Time Clock (RTC) oscillator using Digital Signal Processing (DSP), where a resistance/capacitance (RC) oscillator is configured to output a digital pulse signal and a digital RTC Monitor Integrated Circuit (IC) is configured to monitor the RTC oscillator timing signal using the RC oscillator signal. In one aspect, the RTC Monitor IC includes an RTC input configured to receive the RTC oscillator timing signal; an RC input configured to receive the RC oscillator digital pulse signal; and an RTC reset output configured to output an RTC reset signal when a comparison of the RTC and RC oscillator inputs show the RTC oscillator has missed one or more clock cycles. A single wire input/output for both reset and interrupt signals between circuits is also described.

公开(公告)号：US20150097726A1

公开(公告)日：2015-04-09

申请号：US14328143

申请日：2014-07-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Daniel Babitch ,  Steven A. GRONEMEYER ,  Nicolas VANTALON

IPC: G01S19/23

CPC classification number: G01S19/23 ,  G01S19/235 ,  G01S19/34

Abstract: Methods, systems, and devices for monitoring a Real Time Clock (RTC) oscillator using Digital Signal Processing (DSP), where a resistance/capacitance (RC) oscillator is configured to output a digital pulse signal and a digital RTC Monitor Integrated Circuit (IC) is configured to monitor the RTC oscillator timing signal using the RC oscillator signal. In one aspect, the RTC Monitor IC includes an RTC input configured to receive the RTC oscillator timing signal; an RC input configured to receive the RC oscillator digital pulse signal; and an RTC reset output configured to output an RTC reset signal when a comparison of the RTC and RC oscillator inputs show the RTC oscillator has missed one or more clock cycles. A single wire input/output for both reset and interrupt signals between circuits is also described.

Abstract translation: 用于使用数字信号处理（DSP）监视实时时钟（RTC）振荡器的方法，系统和设备，其中电阻/电容（RC）振荡器配置为输出数字脉冲信号和数字RTC监视器集成电路（IC） ）配置为使用RC振荡器信号监视RTC振荡器定时信号。 在一个方面，RTC监视器IC包括被配置为接收RTC振荡器定时信号的RTC输入; RC输入配置为接收RC振荡器数字脉冲信号; 以及RTC复位输出，当RTC和RC振荡器输入的比较显示RTC振荡器已经错过一个或多个时钟周期时，配置为输出RTC复位信号。 还描述了用于电路之间的复位和中断信号的单线输入/输出。