什麼是 ccHDtv？ 閉路高畫質電視 (ccHDtv) 是一項新開發的解決方案，旨在監控系統中傳輸全高畫質 (Full HD) 數位影像。其核心概念是利用數位電視 (DTV) 傳輸技術來傳遞高畫質影像。透過 ccHDtv，數位高畫質影像可以透過同軸電纜、雙絞線甚至是無線網路輕鬆傳輸。多路 1080p30 或 1080p60 的影像串流可以經由單一 3C2V/RG59 電纜，在不需中繼器的情況下傳輸長達 500 公尺。 在類比電視的時代，複合影像基頻訊號 (CVBS) 是最常見的訊號格式。它的普及性、易用性與穩定性已成為我們生活的一部分。事實上，CVBS 是類比監控系統中實質上的訊號標準。隨著全球類比電視訊號停播 (ASO) 期到來，我們正在跨入數位電視時代。DVB-T、ISDB-T 與 ATSC 等數位技術已像類比時代的 CVBS 一樣變得普及且不可或缺。ccHDtv 槓桿了數位電視極其強大的 AV 傳輸能量，能輕鬆且無縫地將類比 CCTV 監控系統升級至數位全高畫質。可以預見，ccHDtv 在未來將成為數位影像監控系統的實質標準。
I’ve started collecting the information around the end of 2010 because the wireless technology advanced to much higher bandwidth for multimedia streaming. There are two conditions of the development that I thought. 1. To develop the whole wireless part by ourselves. 2. To buy the module directly from the supplier. But some important factors that make me just ‘collect information’ at that moment. For 1, the expense is very horrible. - We have to pay chip vendor for NRE. - We are new to be the player and we have no credit to the chip vendor. - We have no equipment and we have to invest a lot to do it. - There are lots of tasks need for the regulation. To sum up, this is a money game for surveillance company and we see no market at that moment. For 2, we could leverage a lot tasks to supplier but we still have to prepare equipment to verify the whole system and get the experience of the regulation. However, the module cost and performance ratio could not meet our requirement. It is quite challenge for me to persuade my boss to do it. So what I can do is just keep attention on wireless technology. Until now, I have the chance to do the development finally. Although I’m newbie for wireless, it’s not too hard to enter this area. The reason is the technology become much mature and we can make it work even we do not know much about wireless. So, let’s just do it. The module I use is based on Atheros AR6103 and AR6003. The driver of these two chips are similar. The documents I study is are mainly from Atheros. I also reference the IEEE specification and search on Google. ...
I found an interesting comic that made by Gavin Aung Than. The philosophy is suitable for every creative work.http://zenpencils.com/comic/90-ira-glass-advice-for-beginners/
There is a very hot TV program which name is “I’m a singer” in China. I never saw this program before because there are already lots of similar program in the world. At the first, I could not understand why this program catch so many eye balls. My memory was stay at the program that is made by Taiwan’s media years ago. Even it’s hot at season one, it become colder and colder till now. At least, I do not have that passion to see this kind of show again. So it cause my curiosity why it success at this moment in China. After searching the information on the internet and spent hours to see the last episode of season one last weekend, I start to know why it become so famous. Hunan TV bought the copyright from Korea and the success story is not only just bought the copyright. The factor that make it
I started to pay attention on the Bitcoin that is from a news that discussed why bitcoin become strengthening. After weeks study and observation, I thought the bitcoin could be one of the real monetary in future. More links are as following. Bitcoin official site -> http://bitcoin.org/en/ Bitcoin wiki -> http://en.wikipedia.org/wiki/Bitcoin Bitcoin howto in Chinese -> http://saving.cc/bitcoin/ The following article is quite earlier in Taiwan’s news and it is also interesting. http://techorange.com/2011/05/22/bitcoin-p2p-curenncy-dangerous/ Two years later today, the bitcoin’s currency rush to 1BT:90USD because of the crisis of Cyprus. ...
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http://wired.tw/2013/03/05/startup-road/index.html http://wired.tw/2013/03/05/marketing-age/index.html http://wired.tw/2013/02/26/internet-is-eating-the-world/index.html
Reference http://mrjamie.cc/2013/01/31/kickstarter-angellist/
Evostream server’s configuration for rtmps test Add the following content in the acceptors part in config.lua. This is for Win7 configuration and remember that we have to use double ‘' instead of single for path. The cipherSuite parameter, we could reference http://www.openssl.org/docs/apps/ciphers.html#CIPHER_SUITE_NAMES RTMP library The library is main from rtmpdump. The webpage is http://rtmpdump.mplayerhq.hu. The libssl library - SSLv23 method is used in the RTMPdump. - SSLv23 method A TLS/SSL connection established with these methods will understand the SSLv2, SSLv3, and TLSv1 protocol. ...
There is a new sensor structure that introduce by Panasonic to replace color filter by color splitter. This kind of sensor remove general color filter and add the color deflector before the diode. The conventional color filter would cause 50%~70% light loss and new sensor reduce lots of the light loss. The following pictures show how it works. The device can also be manufactured using current semiconductor fabrication processes. It doesn’t use special materials or processes. It’s a great news to bring this sensor to realization. ...