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最近在做一些實驗性質的東西,記得去年短暫玩過 2023 年底上市的第二代 Ray-Ban Meta 智能眼鏡,雖然它主要還是依賴智慧型手機作為算力中心,但我們對它所使用的串流技術很感興趣,因為聽說他們是用藍芽做串流。 去年曾經有同事隨口問我:「我們的眼鏡做到跟他們一樣你覺得有可能嗎?」,因為我知道我們的硬體規格跟人家的相比並非等號,加上當時有其他事情在搞,所以隨口開玩笑回說:“可是聽說 Meta 有200個人在搞那個眼鏡捏(雖然不知道他們負責搞應用的有幾人),啊我如果一個人可以幹贏他們200人,那我還在這幹嘛???(笑)” 也記得更久以前,當我們還在研究那個眼鏡時,常聽到像是:『 他們不知道用了什麼黑科技 』,這類沒有建設性、不應該從 RD 嘴裡說出來的話,而我也是不以為然。坦白講,以前每次只要聽到某SW嘴砲經理(暫且以H君稱之),沒事就把『 黑科技 』三個字掛在嘴上,當做無知的遮羞布,我就會感到倒胃口!同樣身為RD,我只覺得  Shame on you!(打嘴炮、作秀搶風頭、噁心帶風向、搞政治操作、把別人做事的成果搶去幫自己抬轎、有鍋直接推給下屬扛、散佈同事私生活謠言,還有職場霸凌,這些你他媽都頂級專業戶,除此之外沒啥洨用了!) 一件理論上可以做到的事情,外行人的認知被信息差,不懂加上沒實作能力去驗證,就什麼都變成黑科技了(多黑?比巴西黑鮑魚還黑嗎?)。反重力技術說不定也非啥黑科技,只是政府不讓你普通老百姓了解罷了。 Ray-ban Meta 的黑科技,講白了就是人家拉個百人團隊在搞那支眼鏡,然後把軟體技能和硬體規格點滿,再加上極致優化後的成果罷了! 當時知道 Ray-Ban Meta 的智慧眼鏡有塞入一個強大的 WiFi 6 晶片在裡面,一開始我猜測會不會有可能是透過 WiFi P2P 或 WiFi SoftAP 的方式去做串流(確實 Meta 的智能眼鏡,在同步媒體時,會強制要求開啟手機的 WiFi 開關,所以媒體同步應該是靠 WiFi 通道做的),而去年初我也快速做了一個WiFi Direct 架構來做 POC,確實傳輸效率非常快,幾百 MB 的大檔幾乎秒級傳完,從眼鏡端將媒體串流到手機端更是不用說的順暢,而且當時我們的媒體串流還是以未經編碼的方式傳透過 Socket 直接傳輸的(這表示傳輸時所需的頻寬會更大,功耗據說也較大)。 後來因為 ...

2017, April 28th ~ May 1st【Travel to Hokkaido】Sapporo, Lake Toya, Hakodate

A Journey into the delicious meals and hot springs of Hokkaido


Sapporo (札幌) is the capital of Hokkaido and Japan's fifth largest city. Sapporo is also one of the nation's youngest major cities. Sapporo became world famous in 1972 when the Olympic Winter Games were held there. Today, the city is well known for its ramen, beer, and the annual snow festival held in February.

Odori Park (大通公園) is the broad median of Odori  in the center of Sapporo, separating the city into north and south.





Lake Toya (洞爺湖) is part of the Shikotsu-Toya National Park. In addition to the lake itself, the Toyako region features hot springs and an active volcano, Mount Usu, which last erupted in the year 2000. The area also offers many fishing, hiking, and camping opportunities.

Toyako Onsen (洞爺湖温泉) is a touristy hot spring resort town along the shore of Lake Toya, just at the foot of Mount Usu.Several large luxury hotels stand right alongside the lake, offering rooms and hot spring baths with beautiful views of the lake. Visitors who are not guests at the hotels can still use some of the baths during the day for a fee of 500 to 1000 yen.




Hakodate (函館) is Hokkaido's third largest city, located at the island's southern tip. Hakodate is best known for the spectacular views to be enjoyed from Mount Hakodate and its delicious, fresh seafood.

As one of the first Japanese harbor cities to be opened to international trade after the country's era of isolation, Hakodate has experienced notable influence from overseas, and the foreign population's former residential district and a Western style fort are among its main tourist attractions.



Fort Goryokaku (五稜郭) is a massive, star shaped, Western style citadel, which was built in the last years of the Edo Period for the defense of Hakodate against the imperialist threat posed by the Western powers. A few years later, the fort became the site of a civil war between an army of the shogunate and the superior troops of the newly established Meiji government.

After the fort had lost its military importance, it was eventually turned into a public park in the 1910s. Over one thousand cherry trees were planted along its moats, making it one of Hokkaido's best cherry blossom spots. The peak of the blooming season usually takes place around early May.




Mount Hakodate (函館山) is a 334 meter high, wooded mountain at the southern end of the peninsula on which much of central Hakodate is located. On clear days and nights, in particular, the views from the mountain are spectacular and included among Japan's three best night views alongside the views from Nagasaki's Mount Inasa and Kobe's Mount Rokko.





The Hakodate Morning Market (函館朝市) is held daily from 5am (from 6am during winter) to noon, just a few steps away from JR Hakodate Station. The market area spans about four city blocks.Products on sale include various types of fresh seafood such as crabs (kani), salmon eggs (ikura) and sea urchin (uni), as well as fresh produce such as melons. Many restaurants can be found in the market area, offering fresh seafood breakfasts, such as uni-ikura domburi.



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