·詳細說明：Goertzel算法是DTMF信號檢測的核心，它利用二極點的IIR濾波器計算離散傅立葉變換值，快速有效的提取輸入信號的頻譜信息。-Goertzel algorithm is the DTMF signal examination core, it uses two extremes the IIR filter computations to be separated Fourier t
The ISO7220 and ISO7221 are dual-channel digital isolators. To facilitate PCB layout, the channels are orientedin the same direction in the ISO7220 and in opposite directions in the ISO7221. These devices have a logic inputand output buffer separated by TI’s silicon-dioxide (SiO2) isolation barrier, providing galvanic isolation of up to4000 V. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, andprevent noise currents on a data bus or other circuits from entering the local ground and interfering with ordamaging sensitive circuitry.
為了擴大監控范圍，提高資源利用率，降低系統成本，提出了一種多通道視頻切換的解決方案。首先從視頻信號分離出行場信號，然后根據行場信號由DSP和FPGA產生控制信號，控制多路視頻通道之間的切換，從而實現讓一個視頻處理器同時監控不同場景。實驗結果表明，該方案可以在視頻監控告警系統中穩定、可靠地實現視頻通道的切換。
Abstract:
To expand the scope of monitoring， improve resource utilization， reduce system cost， a multiple video channels signal switching method is pointed out in this paper. First， horizontal sync signal and field sync signal from the video signal are separated， then control signal according to the sync signal by DSP and FPGA is generated to control the switching between multiple video channels. Thus， it achieves to make a video processor to monitor different place. Experimental results show that the method can realize video channel switching reliably， and is applied in the video monitoring warning system successfully.
THIS is really two books in one: a tutorial and a reference manual for JDBC, the application programming interface that makes it possible for programmers to access databases from Java. The goal is to be useful to a wide range of readers, from database novices to database experts. Therefore, we have arranged the book so that information needed only by experts is separated out from the basic material. We hope that driver developers as well as application programmers and MIS administrators will find what they need. Because different sections are aimed at different audiences, we expect that few people will read every page. We have sometimes duplicated explanations in an effort to make reading easier for those who do not read all sections.
This book will be most helpful to those who have some knowledge of the Java programming language and SQL (Structured Query Language), but one doesn t need to be an expert in either to understand the basic concepts presented here.
Address book helps you look up your addresses from the system tray.
It is quite useful in that way 慶ause it stays out of the way and is
easily accessible when needed. Double clicking on any URL will start
the default web browser and take you to that URL. Double clicking on
the phone number will dial that number. Every column supports
sorting and can be customized to your needs. Preview will display
the notes associated with each record.
This program can also import Comma separated Values (*csv) text files
of Outlook Express.
Input
The input contains blocks of 2 lines. The first line contains the number of sticks parts after cutting, there are at most 64 sticks. The second line contains the lengths of those parts separated by the space. The last line of the file contains zero.
Output
The output should contains the smallest possible length of original sticks, one per line.
Sample Input
9
5 2 1 5 2 1 5 2 1
4
1 2 3 4
0
Sample Output
6
5
DESCRIPTION
===========
This example project shows how to use the IAR Embedded Workbench for ARM
to develop code for the Atmel AT91SAM9261 evaluation boards.
It shows basic use of parallel I/O, timer and the interrupt controller.
It starts by showing different patterns on the LED s separated by half second.
COMPATIBILITY
=============
The project is compatible with the AT91SAM9261-EK board.
伸展樹，基本數據結構，The tree is drawn in such a way that both of the edges down from a node are the same length. This length is the minimum such that the two subtrees are separated by at least two blanks.
