Chapter 160: The set-top box that is too curved

Since Sun Guoqiao reported the name of the blank chip, Su Yuanshan looked at the circuit diagram and became cheerful.

YXMPEG1 is the video decoding chip of Yuanxin.

Since it is a video decoding chip, it can't be changed no matter how much it changes. At this stage, it is either a video decoding card installed on a computer, or a VCD. But the video decoding card needs to list the cheat, which is obviously not in this circuit diagram.

That's VCD.

But Su Yuanshan took a closer look and found that the VCD was not right, but there was a video output port.

Su Yuanshan suddenly became interested: "You seem to have designed a hard decoding video playback device?"

Sun Guoqiao nodded in surprise: "Well, you even know circuit design?"

He knew that Su Yuanshan was a good person in programming, and he also found out that this guy relied on programming to be admitted without examination, and he actually applied for applied physics. At that time, he also sighed, but he didn't expect that this person not only knew how to program, but also could see the circuit he designed at a glance.

Although you can guess a few points from the yxmpeg1 chip, it is also very powerful.

Su Yuanshan smiled: "I understand a little bit, isn't the school computer room replaced with a new machine? Each one is equipped with EDA, why don't you use EDA, you have to draw it by hand." ”

"The time on the machine is not enough at all, and it is a bit expensive to go on the computer outside of class, so I have to make a sketch first, and then use EDA to get it out in one breath when the time comes. Sun Guoqiao smiled, continued to bow his head and calculated on the scratch paper, and quickly added a 10 ohm resistor to a certain line.

"By the way, classmate Su, how much do you know about single-chip microcomputers?" Sun Guoqiao looked up and saw that Su Yuanshan was still staring at his drawings, and remembered that this guy's father was a top single-chip computer expert in China, so he hesitated for a moment and asked.

Su Yuanshan was stunned: "I understand a little bit, how?"

"Hmm......" Sun Guoqiao scratched his head and said: "My drawing is not perfect at all, it can only be regarded as a sketch." The plan is to design a network-based video player through a decoding chip + single-chip microcomputer + network card chip. ”

"Huh?" Su Yuanshan was immediately surprised.

This guy is really a talent, he thought of set-top boxes so early, but he immediately realized that this network should not be a TCP/IP network......

"You're based on a local area network, right?"

"Yes. After the VCD came out last year, I thought about it, if there was a similar terminal in the whole LAN, then the compressed files in MPEG format on each computer could be played through the LAN. This is very convenient for presenting video files from each computer during the lesson. Sun Guoqiao said embarrassedly: "It's just that I'm not very familiar with the network and single-chip microcomputer." ”

Su Yuanshan suddenly realized, and then forced to hold back a laugh - it is nothing more than a video file sharing, the curve can save the country to this extent, this guy is also a ghost.

After thinking about it, Su Yuanshan said: "Well, theoretically, you can do this. Can a system be developed? Constantly transmitting the current computer's screen? It is then displayed instantly on another computer. It's just that this is the world of networking and programming. ”

Sun Guoqiao was a little dumbfounded when he heard the programming: "Instant display......? You know the Internet, too?"

"A little bit of understanding. ”

“......”

Su Yuanshan said with a smile: "Now there are people who are engaged in the video root system that can be transmitted and played in segments, called the streaming media format?" Specifically used for network dissemination? It doesn't need to be copied at all to play when the download is done. ”

Sun Guoqiao thought about the concept of streaming media for a while, and when he realized that he could solve a lot of problems from pure programming, he immediately realized? This thing I designed doesn't seem to be of much use, so I can't help but get a little frustrated? Throw the pencil away? He stared at the drawings in a daze.

Seeing this, Su Yuanshan knew that this guy had been hit, so he smiled and comforted: "But this of yours is also very useful." ”

Sun Guoqiao smiled reluctantly: "Don't comfort me, you only found out that I took off my pants and farted when you said this......"

"Huh? Not really. Think about it? If your chip is a chip that can support streaming media decoding, can you play videos transmitted over the Internet?"

Sun Guoqiao nodded: "Theoretically, this is the case, the video that can be transmitted over the Internet ...... Not to mention that there is no streaming media format you mentioned now, even if it is developed, there may not be such a decoding chip? And the speed of the Internet may not be feasible - besides, since there are all networks? There must be a computer, who would use a machine with a TV or monitor to play online videos? Isn't that enough to hold on?"

"Not necessarily. Su Yuanshan said with a smile: "The domestic Internet speed is slow? It doesn't mean that foreign countries are also slow. As for a TV or monitor — what if it's a TV show?"

Sun Guoqiao was stunned suddenly, frowned and thought for a long time before he hesitated: "You mean to put the TV program on the Internet?

"Uh-huh......" Su Yuanshan nodded: "Don't you think about the network speed of the Internet first?" Sooner or later, that thing will become faster than the current LAN? Can you really do this now? It wouldn't be a good idea to sell to the West then - you might not be right with a resistor in the bottom left corner. ”

"Hmm? ”

"The 100 ohm one is estimated to be not enough. Su Yuanshan took the pencil and the draft book, and quickly listed the formula for Sun Guoqiao to calculate.

The set-top box was done very early in the west, but it has not formed a market much, and it is almost out of the country after ten years...... As a result, because of the "you know" cheese, a certain strong game company also went home.

But it eventually became mainstream.

Now that someone has inadvertently broken into this field, Su Yuanshan doesn't mind helping to push it. Even if you can only eat ashes, it is good to be able to accumulate some technology and get some patents.

......

As the sky gets darker, more and more new students enter the study hall.

Ye Rudai and Yu Shuyun walked together.

In a profession where almost 80 percent of them are men, the two of them stand out.

Ye Rudai walked to the middle aisle, and was about to enter the empty seat when Yu Shuyun suddenly snorted softly.

"Look, Dale. ”

Following Yu Shuyun's fingers, Ye Rudai looked at the back row of the classroom.

I saw that in the last row of the classroom, Su Yuanshan was talking to Sun Guoqiao, one holding a pen and constantly calculating.

"They both seem to be your special awards that year, right?" Yu Shuyun whispered.

Ye Rudai nodded, her eyes narrowed slightly, pursed her lips, and said with a smile: "Old Yu, I'll go and take a look at the back." ”

Yu Shuyun had an expression that I understood, snatched the book in her hand, and pushed her into the aisle: "Go." ”

Ye Rudai walked to the back row, and then sat down in an empty space next to Su Yuanshan.

She folded her hands on the table, tilted her head, looked at Su Yuanshan with a smile, and looked at Su Yuanshan's side face.

This guy's side face is so beautiful...... She sighed in her heart.