Rebirth: I Carry A Desktop Computer Inside Me - #89 - Chapter 89 Standard? Who Says What They Set Is The Standard?

Professor Luo Ruihua and Yang Mingde are not the same.

Yang Mingde always smiles and is kind to others.

But Luo Ruihua was different. His face didn’t smile very much. Although his tone of speech was not serious, there was a sense of power in every sentence, which made people believe in him.

This feeling became obvious the next day when Jiang Cheng studied with him.

“…You have 2 weeks to complete the self-study courses of “Andrew Ng’s Open Course on Machine Learning” and “Deep Learning and Computer Vision”. If you have any questions, please send me an email. Of course, it is recommended that you find the answers yourself. , I will guide you, not more to teach you the answer, but to guide you on how to find the answer.”

The first time I studied with a teacher, I lost two classes and had to watch them on my own.

Although Jiang Cheng felt a little unaccustomed to it, after all, he often studied on his own, so he didn’t think anything of it.

“Okay, I took note of it, teacher.”

“I’m usually busy, so I’m not necessarily in the department. If there’s nothing urgent, don’t come to me. On the 11th of next month, I will test your mastery of these two courses. Of course, by that time, you will also have to Decide on a research direction or goal, and if feasible, I will guide you in applying for the project.”

Luo Ruihua reminded him again before letting Jiang Cheng go back.

On the way back, Jiang Cheng felt a little emotional.

From today on, at least in the field of deep learning, he will no longer be a student learning knowledge from his teacher, but a pioneer who follows his mentor to seek knowledge and explore.

He must find a good direction, determine a good plan, and learn cutting-edge knowledge more deeply and thoroughly.

Jiang Cheng had basically read the two courses that Professor Luo Ruihua reminded him to take.

But, I just read it and have a basic understanding.

These two subjects are the basic content of machine learning and deep learning, and what they involve is the first step to stand on the shoulders of giants.

With a hint of awe, Jiang Cheng once again found the courseware and books for these two courses from his internal memory and read them carefully.

We no longer seek basic understanding, but pursue the root causes and master the principles of machine learning more deeply.

Especially in the area of ​​machine learning, although Jiang Cheng read books, he mostly used existing knowledge, algorithms, and post-artificial tools to build programs.

But I am not familiar with the algorithm principles, reasoning processes, and mathematical arguments.

Work hard, young man, to pursue the truth of computer language!

…

In early November, Jiang Cheng had already watched the open courses and deep learning three times.

Jiang Cheng also studied some of the extended books involved, and he obviously felt that his research on machine learning had improved.

During this period, Jiang Cheng took the time to recruit an assistant for Maplefire Semiconductor Company.

Male assistant, Guo Xiaomin.

Mainly responsible for contacting factory construction, chip tape-out and other matters.

The battery fast-charging chip does not need to be as delicate as a CPU, a micron-level process is enough.

For less than 300,000 yuan, Jiang Cheng obtained more than 100 packaged fast-charging chips through Huaxin Microelectronics.

Just in time, two technicians sent by Yu Shengdong arrived.

—————-

The leader is a technical backbone named Liancheng.

Wearing casual clothes, a T-shirt and a jacket, he is not tall, but his hair is thick.

As soon as he arrived in Kyoto, he crossed his arms and asked, “Is it so cold?”

I made a mistake. I thought I would just bring a coat. Little did I know that the coldness in northern cities and the coldness I felt in Pengcheng were not the same thing at all…

The attendant, Xiao Li, calmly took out a thick coat from the suitcase. As soon as he put it on, the color on his face seemed to warm up.

In Kyoto in the early morning, it was only 5 or 6 degrees.

Wrapping his short thin coat slightly tightly, Lian Cheng coughed slightly and drove towards Shuimu in the car.

“Xiao Li, the computer science department of Shuimu University is one of the best in China. Where did you study there?”

“Huazhong University of Science and Technology, Optoelectronics.”

“Hey, that’s not bad.” Liancheng praised, “The students we are going to meet today should be students from the Department of Microelectronics of Shuimu. I heard that Director Yu is very good.”

“Tsk tsk, Mizuki! It is indeed one of the highest universities in China. Many students here are researching and developing many cutting-edge technologies and products. In some fields, even our companies cannot compare!”

Liancheng said he was chatting, but he was still talking to himself.

Xiao Li was very shy, just listening and not speaking.

Warwick’s current consumer business is still on the rise.

Especially in the field of mobile phones, we are still competing in the low-end product line.

In order to survive, we have entered into many contract phone series with mobile operators.

Currently, most of the models on the market are Ascend models. The processors are from Texas Instruments and their performance is very weak.

But Liancheng knows that the Mate series currently being developed by the company will be the first step towards high-end products.

What’s more, this phone will be equipped with their secret weapon, the newly debugged and improved K2V3.

Liancheng was in a state of excitement until he arrived at the Microelectronics Institute of Shuimu University.

“Hello Liangong!”

“Are you Jiang Cheng?” Liancheng stretched out his hand and shook hands with the handsome young man who greeted him.

“I originally wanted to invite you to the company, but the venue has just been finalized, so we can only meet here directly.” Jiang Cheng said apologetically.

Liancheng waved his hand, “It doesn’t matter, I’m impatient too, let’s just look at the products.”

“Okay, please.” Jiang Cheng stretched out his hand in greeting.

In order to actually test these freshly baked chips, Jiang Cheng contacted the boss of the Institute of Microelectronics through Ding Chengjun, spent some money, and borrowed some instruments and equipment.

Well, by the way, this Ding Chengjun is pretty good.

After Jiang Cheng sent an email to ask for advice, he clearly felt that the other party would not treat him coldly.

Some words also turned into mutual exchanges and discussions.

But Jiang Cheng knew in his heart that he only had unlimited circuit design experience in the internal computer, and there were still many shortcomings in theory, especially in the area of ​​cutting-edge knowledge.

Always maintain a humble and prudent style, which is the right way.

The three of them entered the Microelectronics Institute.

On a test bench in a laboratory, there are more than a dozen fast-charging chips.

But it’s about the size of a child’s fingernail, very thin, with three pins on each side.

Next to it are a variable voltage power adapter for experiments and a dozen lithium batteries for mobile phones.

“Classmate Jiang, have you ever tested it yourself?” Liancheng looked at it and asked directly without getting started.

“We have conducted several sets of comparative tests and the performance is very stable at 9V/2A and 5V/4.5A. A 3000 mAh lithium battery can be charged to 90% in about half an hour,” Jiang Cheng said.

“Hiss!” Liancheng was a little surprised, “So fast!”

“This is to protect the safety of the battery in the future. The remaining 10% will intelligently regulate the voltage and current, and can be fully charged within 10 minutes. To prevent overcharging, charging will be automatically disconnected after full charging.”

“Just saying no, I have to test it myself.”

“Please.” Jiang Cheng looked confident.

In order to develop this fast-charging chip, Jiang Cheng studied in depth the associated power adapter, fast-charging protocol, and data cable-related knowledge one by one.

The entire process will be flawless.

Liancheng took Xiao Li to start his own test.

Then, as soon as a result was obtained, there was a burst of “hiss!” and people were filled with admiration.

Half an hour later, Liancheng looked at the simple charging circuit and test results on the table, and he already believed in the power of this product.

But then, Liancheng discovered a problem.

“Eh?! This charging port of yours is not micro-usb?”

Jiang Cheng shook his head, “Of course not. The maximum current of micro-USB can only support 2A, which is too low. After designing the fast-charging chip, I made a new pin definition for the interface in order to achieve the fast-charging effect of the battery. “

“The interface cannot be defined by oneself. It is a unified standard formulated by the USB-IF in the United States, and all international companies must abide by it.”

Jiang Cheng smiled, “Standards? Who said that what they set is the standard?”

“this……”