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Description: 近段时间闲来无事做了一款AV和HI-FI两用的前级，采用音量音调处理芯片PT2322完成音量音调的处理，支持六声道音量0~15分贝可调，高中低音支持-7db~+7db可调，总音量支持0~79分贝可调，步进为2分贝每次，并且具有静音、3D和直通功能，不论是在听音乐还是在看电影两不误；采用pt2323实现音源输入选择和2声道转换成6声道的功能，支持四组普通立体声输入和一组DVD六声道输入，并且能够将四组立体声其中的任何一组转换成六声道，即使是用VCD看普通碟片时也能欣赏到有如DVD一样的环绕音效。由于PT2323和PT2322支持I2C总线控制，利用89c51对其进行控制，PCB板连线方便，控制简单。本板除了以上功能外，还特留有一个输出口，用来控制后面所接的功率放大模块的电源的关断，以实现遥控开关机，静音时也将功率放大模块的电源模块关断，以实现节能的目的。本电路还有一个重要特点，整个电路采用单5V电源供电，接口简单，连线方便，便入摩机用。人对电路操作主要有两种方式，一是通过键盘来进行控制，二是通过配有的红处的遥控接收头来控制，遥控器可选市面上很容易买到的由TC9148型的遥控器即可。本人提供少量PCB板，供爱好音响和单片机的同行做实验，
如有需要也可提供全套散件或成品板。
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Size: 23552 |
Author: 易生 |
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Description: This document contain a model of wi-fi 802.11 b
Its great work
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Size: 63488 |
Author: Dimon |
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Description: Wi-Fi、WiMAX与3G的博弈关系
及相关技术的介绍-Wi-Fi、WiMAX与3G的博弈关系.txt及相关技术的介绍
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Size: 421888 |
Author: trz |
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Description: 自制Wi-Fi 2.4GHz无线天线 最远可达30KM 大量教图片-Home Wi-Fi 2.4GHz wireless antennas furthest reach a large number of teaching 30KM picture
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Size: 5679104 |
Author: 吗啡 |
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Description: 通过单一的Wi-Fi接入点的信号强度来判断移动物体的位置。比较新的一篇文章。用了蒙特卡罗抽样的办法－Monte Carlo Sampling Method－来估计位置。-This paper describes research towards a system
for locating wireless nodes in a home environment requiring
merely a single access point. The only sensor reading used for
the location estimation is the received signal strength indication
(RSSI) as given by an RF interface, e.g.,Wi-Fi.Wireless
signal strengthmaps for the positioning filter are obtained by
a two-step parametric and measurement driven ray-tracing
approach to account for absorption and reflection characteristics
of various obstacles. Location estimates are then
computed using Bayesian filtering on sample sets derived
by Monte Carlo sampling. We outline the research leading
to the system and provide location performance metrics using
trace-driven simulations and real-life experiments. Our
results and real-life walk-troughs indicate that RSSI readings
from a single access point in an indoor environment
are sufficient to derive good location estimates of users with
sub-room precision.
Platform: |
Size: 452608 |
Author: weihuagao |
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Description: 最新基于无线网络的实时定位与跟踪技术白皮书。-White Paper. Wi-Fi Based Real-Time Location Tracking: Solutions and Technology.
Platform: |
Size: 44032 |
Author: CrazyCharlie |
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Description: A book containing some projects concerning wi-fi
Platform: |
Size: 9287680 |
Author: Praveen |
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Description: ZIGBEE和WI-FI合作发展智能电网无线网络-ZIGBEE and WI-FI wireless smart grid development cooperation
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Size: 4096 |
Author: leepp |
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Description: WI-FI, BLUETOOTH, ZIGBEE
AND WIMAX
by H. LABIOD, H. AFIFI, C. DE SANTIS
Springer
2007
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Size: 17806336 |
Author: Giora |
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Description: WiMAX是IEEE802.16以太网络的界面标准，就像Wi-Fi 是802.11以太网络的标准一样。 这两年来，WiMax 已经成为无线网络界最流行的专用字汇。-WiMAX is the IEEE802.16 standard Ethernet interface, just like Wi-Fi is the same as the 802.11 standard Ethernet network. The past two years, WiMax wireless network has become the world' s most popular special vocabulary.
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Size: 6144 |
Author: 卓卓 |
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Description: This book describes about wi-fi telephony ,challenges and solution for voice over WLANs
Platform: |
Size: 3730432 |
Author: yanti |
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Description: 无线电爱好者丛书精品系列：高保真音响电路与家庭影院音响系统.rar-Radio enthusiasts Books Collection: hi-fi circuit and home theater sound system. Rar
Platform: |
Size: 11170816 |
Author: 潘群峰 |
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Description: Wi-Fi driver and wireless network auto installer for ARM-Wi-Fi driver auto installer for ARM
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Size: 1589248 |
Author: yu-cheng chen |
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Description: Wi-Fi CERTIFIED™ for Wi-Fi Protected Setup™ : Easing the User Experience for Home and Small Office Wi-Fi® Networks-Wi-Fi CERTIFIED™ for Wi-Fi Protected Setup™ : Easing the User Experience for Home and Small Office Wi-Fi® Networks
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Size: 202752 |
Author: a |
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Description: 虽然WiFi网络越来越流行，但是网络的安装和配置还是比较的复杂，而且就算成功安装了网络，大多数人也不会去使用WiFi的安全特性，因此很不安全、很容易遭受攻击。为了解决这个问题，很多的厂家都开发了自己的一套网络初始配置的解决方案，这样又带来了另一个问题：各个厂家之间的无秩序和不同产品的兼容性。
针对这种状况，WIFI联盟跳出来制定了“Wi-Fi Simple Config”的方案，来作为一个统一的标准。“Wi-Fi Simple Config”的最主要目标是让安全的配置和管理WiFi网络变得很简单，能够向用户保证他们的无线网络能够拒绝非授权的访问，不会泄漏他们的私人信息。他们的目标便是：又简单、又安全！-WiFi networks are becoming more and more popular, but the installation and configuration of the network is quite complex, and even if successful installation of the network, most people are not going to use the security features of WiFi, so very safe, very vulnerable. To solve this problem, many manufacturers have developed its own set of network initial configuration solutions so that brings another problem: order and compatibility between the various manufacturers.
In response to this situation, WIFI Alliance jumped out to develop a program of "Wi-Fi Simple Config" as a uniform standard. "Wi-Fi Simple Config" the most important goal is to let the WiFi network, configuration and management of security has become very simple, to guarantee their wireless network to be able to deny unauthorized access, will not reveal their private information. Their goal is: it s easy, and safe!
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Size: 177152 |
Author: a |
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Description: Sources wi-fi - Brute Native
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Size: 398336 |
Author: SERGIUSPIPL1 |
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Description: This book is used for networking like WI-FI, BLUETOOTH, ZIGBEE AND WIMAX.-This book is used for networking like WI-FI, BLUETOOTH, ZIGBEE AND WIMAX.
Platform: |
Size: 17807360 |
Author: Joronz10 |
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Description: This sample demonstrates how to use the Windows 8.1 Preview Mobile Broadband API (Windows.Networking.NetworkOperators) to perform Wi-Fi hotspot authentication.
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Size: 111616 |
Author: zyl |
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Description: 该文档介绍了Wi-FI Protected Setup(WPS)连接方式，为开发人员提供了技术说明，以及一些内在的协议解说。-This Docunebt discribe the Wireless Connecting type of Wi-FI Protected Setup(WPS),it provide Programmer the WPS developer skills and WPS protocol discription.
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Size: 1625088 |
Author: 风华 |
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Description: 数据采集的Wi-Fi安全技术入门,讲述Wi-Fi基本技术-For the entry of Wi-Fi security technology in data acquisition
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Size: 303104 |
Author: 天行健 |
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