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Weeks ago, my colleague saw a very interesting video on Ted. He sent me the link and I’m really excited. The reason why he sent me was because we ever discussed the future of the video system month ago. Everyone raised different ideas of the device and my idea is the quadcopters with camera on it. Why I wanna do such kind of device is oriented from my study in university. I’ve been studied the mechanics in Aeronautics and Astronautics department, bachelor plus master are total 6 years. There is less such kind of career opportunity in Taiwan because of the environment. Lots of my classmates join the semiconductor industry to be equipment engineers in the company like TSMC, CMO…etc. A little part including me choose different road to be R&D engineer in other industry. ...

幾週前，我的同事在 TED 上發現了一段非常有趣的影片。他把連結傳給我後，讓我感到非常興奮。他之所以傳給我，是因為我們在一個月前剛討論過影像系統的未來。每個人都對未來的設備提出了不同的點子，而我的想法是——搭載相機的四旋翼無人機 (Quadcopters)。 我之所以想做這種設備，源於我在大學時期的研究。我曾在航太系修讀力學，大學加碩士總共沉浸了六年。在台灣，因為環境因素，這類職涯機會相對較少。許多同學選擇加入半導體產業，在台積電或奇美電子等公司擔任設備工程師。少部分人（包括我）選擇了一條不同的路，在其他產業擔任研發工程師。 我的第一份履歷投考的是機構工程師，但命運引領我成為了監控系統的軟體工程師。幸運的是，我見證了監控產業最重要的轉型期：從封閉系統到開放系統，再從開放系統轉向智慧化系統。這其中最顯著的變革是 IP 網路基礎設施的快速成長。網路技術克服了 2000 年的泡沫，重新形塑了許多產業的遊戲規則。隨著開放系統逐漸成熟，我們正邁向智慧化的未來。 四旋翼無人機就是這類型設備的一個縮影。 影片連結：Raffaello D’Andrea on TED 我對影片中第一個「倒立單擺 (Inverted Pendulum)」的演示印象極深，這是在學校最基礎的控制實驗，如今竟然在四旋翼無人機上實現了，簡直太神奇了！我原本的構思僅是讓它在不同基地台間巡邏，但現在的發展已遠超我的想像。

Recently, I become very busy due to take over the tasks from other site. The original coding things are still there and so I start looking for outstanding guy to join us. The first month, I try to have some candidates from my colleagues and myself’s database but in vain. Now I shift this job to head hunter and start some interview. I’ve interviewed lots of people in my first job and second one. It’s much more interesting to interview with the guys from head hunter at this moment. Why? Lots of the factor would effect which kind of developer you want. ...

最近因為開始接手其他站點的任務，生活變得極度忙碌。原有的開發任務依然存在，因此我開始尋找優秀的夥伴加入我們。第一個月，我試著從同事推薦或我的人才庫中尋找，但無功而返。現在我將這個任務委託給獵頭公司，並開始進行面試。 我在第一份和第二份工作中面試過許多人。目前與猎頭推薦的候選人進行面試，感覺更有趣。為什麼？因為許多因素會決定你到底需要哪種類型的開發者。 以我的第一份工作為例，公司並不傾向為資深工程師支付高昂薪資，因為過去與資深人才合作的歷史並不佳，存在不確定性。因此，我們當時偏好找尋社會新鮮人。尋找新血的策略相對簡單：第一，查看在校成績，確認他們是否認真對待學生的本分；第二，進行適向測驗 (Aptitude test)，了解邏輯與耐心等指標。根據結果，我們還會進行不同主題的對談，觀察其態度、表達能力，以及最重要的——潛力 (Potential)。綜合以上考量，我們就能判斷是否值得一試。相對來說，這簡單許多，對吧？ 回到我現在的面試經驗。我們正在尋找非常資深且極度優秀的開發者。這裡不再看成績單或適向測驗，取而代之的是，我們必須評判他們在職涯中所經手的具體工作。雖然獵頭理應幫忙過濾履歷，但有些獵頭就像房屋仲介，因此我們仍得透過不同管道獲取資訊，確保求職者正是我們想要的人才。此外，我必須設置不同類型的測試，例如 30 分鐘的即時編碼、詢問高難度的技術難題等。評判這名開發者是否合用變得複雜許多，因為我們不再像以前看待新人那樣有大量的時間進行培訓。這是一項挑戰，但也非常有趣。希望我們能儘快找到像藍波 (Rambo) 一樣的核心工程戰力。

The PoC is power over cable and it’s just like the PoE on IP camera. I met a supplier that they can provide the PoC solution on the ccHDtv system. Originally, I thought it’s a useful and necessary function but it’s not at all now. Why? The CCTV is always starting from system point of view but not just the device only like the cellphone. The first factor is that the analog CCTV infrastructure has already built over there for a long time. That means the power cable is existing and reliable. So it is not necessary to equip the PoC except the project a brand new installation. The second, the strategy of the ccHDtv alliance is to replace the traditional analog surveillance system from VGA to HD but not to compete with the existing IP surveillance system. We can totally confirm that it’s not necessary to equip PoC on DTV camera. The others factor like the cost increase, design complexity increase and regulation to pass. ...

What is ccHDtv? Closed Circuit HD TV (ccHDtv) is a newly developed solution for transmitting full HD digital video in a surveillance system. The core concept of ccHDtv is to deliver high definition video using digital TV (DTV) transmission. With ccHDtv, high definition digital video can be transmitted easily over coaxial cables, twisted pairs, or simply over the air. Multiple 1080p30 and 1080p60 video streams can be easily transmitted using ccHDtv over a single 3C2V/RG59 cable up to a length of 500 meters without any repeater. ...

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