公开(公告)号：KR1020080088044A

公开(公告)日：2008-10-02

申请号：KR1020070030379

申请日：2007-03-28

Applicant: 삼성전자주식회사

Inventor： 박종온 ,  박현수

IPC: H03K5/00

CPC classification number: H03K5/19 ,  G01R23/15 ,  G06F1/04

Abstract: An apparatus and a method for detecting a period of a digital signal are provided to measure a period of a high speed digital signal by measuring an edge part of a digital signal with a high speed clock and measuring a part between edges of the digital signal with a low speed clock. An apparatus for detecting a period of a digital signal includes a first edge detection unit(200), a second edge detection unit(202), a first counter(204), an offset value detection unit(206), a second counter(208), and a period detection unit(210). The first edge detection unit detects an edge of an input digital signal by using a first clock signal having a predetermined period. The second edge detection unit detects an edge of the digital signal by using a second clock signal having a predetermined division rate divided from a first clock signal. The first counter counts the first clock signal in response to a detection result of the first edge detection unit. The offset value detection unit detects an offset value used in the counting of the second clock signal from the counting result of the first counter in response to the detection result of the second edge detection unit. The second counter counts the second clock signal based on the detected offset value in response to the detection result of the second edge detection unit. The period detection unit detects a period of the digital signal from the counting result of the second counter.

Abstract translation: 提供一种用于检测数字信号的周期的装置和方法，以通过用高速时钟测量数字信号的边缘部分并测量数字信号的边缘之间的部分来测量高速数字信号的周期，并且用 一个低速时钟。 一种用于检测数字信号周期的装置，包括第一边缘检测单元（200），第二边缘检测单元（202），第一计数器（204），偏移值检测单元（206），第二计数器 ）和周期检测单元（210）。 第一边缘检测单元通过使用具有预定周期的第一时钟信号来检测输入数字信号的边沿。 第二边缘检测单元通过使用从第一时钟信号划分出的预定分频比的第二时钟信号来检测数字信号的边缘。 响应于第一边缘检测单元的检测结果，第一计数器对第一时钟信号进行计数。 偏移值检测单元响应于第二边缘检测单元的检测结果，从第一计数器的计数结果检测用于计数第二时钟信号的偏移值。 第二计数器响应于第二边缘检测单元的检测结果，基于检测到的偏移值来计数第二时钟信号。 周期检测单元从第二计数器的计数结果检测数字信号的周期。

公开(公告)号：KR1020100051613A

公开(公告)日：2010-05-17

申请号：KR1020107000590

申请日：2008-06-30

Applicant: 삼성전자주식회사

Inventor： 이준희 ,  김준수 ,  유정필 ,  박찬섭 ,  박종온 ,  김정진 ,  장인식 ,  권용식 ,  강준석 ,  박의준 ,  정진희 ,  지금란 ,  김종훈 ,  김세준 ,  정해주

IPC: H04N7/015 ,  H04H20/44

CPC classification number: H04N21/4344 ,  H03M13/1515 ,  H03M13/23 ,  H03M13/256 ,  H03M13/2707 ,  H03M13/2732 ,  H03M13/2972 ,  H03M13/3938 ,  H04L1/0041 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0066 ,  H04L1/0071 ,  H04L1/0072 ,  H04N19/61 ,  H04N19/70 ,  H04N21/23608

Abstract: PURPOSE: An ATSC(Advanced Television System Committee) mobile/handheld RFP A-VSB(Advanced VSB System) MCAST(Mobile Broadcasting) response, and A-VSB physical and link layers with a single frequency network are provided to improve reception of an 8-VSB service in a mobile/handheld operation mode by encoding signaling information in an RS encoder, thereby randomizing a stream including the signaling information in a randomizer. CONSTITUTION: A digital broadcasting transmitter includes an MUX(Multiplexer) and an exciter. The MUX forms the stream. The stream includes a normal data stream and a turbo data stream. The exciter encodes the stream. The exciter transmits the encoded stream. One burst includes data of N (52 bytes x NTP x 2). The NTP is the number of MCAST packets per package. Each data is rotated for burst transmission.

Abstract translation: 目的：提供ATSC（高级电视系统委员会）移动/手持式RFP A-VSB（高级VSB系统）MCAST（移动广播）响应和具有单频网络的A-VSB物理层和链路层，以改善8 -VSB服务，通过对RS编码器中的信令信息进行编码，从而将包括信令信息的流随机化在随机化器中。 构成：数字广播发射机包括一个MUX（多路复用器）和一个激励器。 MUX形成流。 流包括正常数据流和turbo数据流。 激励器编码流。 激励器发送编码流。 一个突发包括N（52字节×NTP×2）的数据。 NTP是每个包的MCAST数据包数。 旋转每个数据进行突发传输。