After three months and 28 days, more than 2,500 people participated, and the total code far exceeded expectations, reaching an astonishing more than 1,800,000 pieces.

After completing the docking of the program interface, Wang Anran directly installed it on the school's small computer.

Looking at the familiar graphical interface, Wang Anran suddenly had a feeling of being in a different world.

The human-computer interaction of this software is not good,But it can also be easily operated with a mouse and keyboard,The whole interface has been sinicized,And the function is not sound,Involving the level of hardware,The simulation of the entire chip can not be done,Only the simulation of specific parts can be carried out。

Although there are such and such shortcomings, for Wang Anran now, this is a perfect product, and this is the object he needs to take care of.

After the installation was completed, Wang Anran encrypted the source file and burned the disc as soon as possible, and then operated the software on the computer terminal.

"Let's take Wanyan's video decoding chip to practice first. ”

The design of the chip can not be separated from the process of the times, limited by the process technology, the most advanced manufacturing process in this era is intel and IBM, which has reached the manufacturing process of 800 nanometers, and can integrate more than 2 million transistors per square centimeter.

TSMC and Samsung are not far behind, basically one era behind, and now use a 1000nm manufacturing process, which can integrate 1.3 million transistors per square centimeter.

Wang Anran selects a one-micron process on the interface, and the parameters of the entire chip design are carried out in a one-micron process, and the input interface of the chip is set to the IDE hardware interface in the general-purpose pixel mode, and the output interface is a digital-to-analog conversion interface.

The structure of the chip is like doing a primary school math problem in Wang Anran's mind.

Wang Anran used some mature structural design techniques in the chip design, and the whole chip contains an IDE interface data processing unit, a high-fidelity audio decoding unit, four video parallel decoding units, and a control unit.

In order to save costs, Wang Anran even integrated a digital-to-analog conversion unit into the chip.

The principle of operation is very clear, under the full control of the control unit, the chip sends instructions to the optical drive, the optical drive reads the data, and transmits the data to the data processing unit through the IDE interface.

After receiving the data transmitted by the optical drive, the data processing unit first performs the first step of processing, which is to separate the audio and video data, and then package the audio data and video data into a data package of only 76kb.

After the packet is completed, it is transmitted to the video decoding unit and the audio decoding unit, where the compressed data is restored to digital video and audio data.

The digital and audio data are then integrated in the output unit and converted into an analog signal by the digital-to-analog chip and output to the TV.

The whole decoding process is complete.

Wang Anran only spent three hours to complete the design of the entire chip, and then the analog chip work, this program was written by Wang Anran himself and has been tested several times.

The key point of chip simulation is the writing of interface protocol model, including a series of protocols such as intra-chip communication, interrupt mechanism, machine language, etc......

With the current computing level of the minicomputer, the simulation time is very long, and the simulation process is to set up a virtual space on the computer, connect the source data to the chip in the virtual space, simulate the operation of the chip, and detect the results of chip processing.

After a night, the chip passed the detection of three 120-minute 1024*768 resolution clear video decoding, and there were some garbled characters in the middle, and Wang Anran dealt with it in time.

In the morning, after successfully passing the test, Wang Anran stretched out in the terminal room.

Walking out of the computer room, I met Shan Lei with a shoulder bag and was walking towards the computer room.

"Wang Anran, are you on the plane for another night?"

How did this sound so awkward.

"Shan Lei, now you can't catch me, I'm a super user, there is no time limit on the machine, and the permissions are not limited. ”

Shan Lei said secretly, is this what this girl meant when she told you this?

"You haven't had breakfast yet, you go to the duty room to rest first. ”

Wang Anran shook his head: "It's not okay to be sleepy, I'll go back first." ”

"If you are told to take a break, you will take a break, what do you say. ”

Wang Anran was stunned, he didn't expect Xiao Pepper to have such a hot temper.

turned his head back to the duty room, there was a reclining chair in the duty room, Wang Anran and his clothes lay down, and his eyelids gradually became heavy.

By the time Shan Lei bought it early and returned to the duty room, Wang Anran was already asleep.

Shan Lei put it on the table early and looked at Wang Anran curiously.

A boy's concentration has an indescribable attraction to Shan Lei, and she is curious, what is this boy doing?

…………

At the Yanjing International Hotel, Toshishi Oshima was enjoying his sashimi cuisine, and after drinking a sip of sake, Toshishi Oshima smiled and said, "Nakamura-kun, this can bring sake from the island country, today, you can drink it heartily." ”

Nakamura saw that the president's interest was very high, and after a bow, he sat opposite Jun Oshima.

"President Oshima, why don't we take effect immediately and wait three months before transferring the intellectual property rights of the MPEG compression technology that we spent $10 million on all the intellectual property rights of the MPEG compression technology and the promise of the c_cube company not to patent the VCD solution?"

Toshi Oshima looked at Nakamura playfully.

"Jun Nakamura, VCD has been released, you should feel the shock in the industry, I think Sony, Philips, our old rivals, now want to develop their own video mode, you think, a year or two later, each launched their own VCD products.

And what are the consequences of these products being incompatible with each other?"

Katsuo Nakamura thought for a moment and said, "Consumers will be at a loss, and the market will be restricted. ”

"Yes, Nakamura-kun, I didn't expect that it was a Chinese company that launched the world's first VCD, and the major giants did not have no strength, but they didn't see that the poor picture quality mpeg had such a big market prospect.

But to make an industry-recognized video compression standard, this is difficult to imagine. ”

Nakamura suddenly thought of something, and said with a slightly red face: "What Jun Oshima means is that under the name of c_cube, promote the MPEG video compression format as the industry standard, and in the future, Panasonic will obtain the intellectual property rights of the MPEG compression format, and it will be able to stand at the top of the industry......"

"Nakamura Jun, I found that you are still quite smart, this matter, I have reported to the head office, according to the latest news, Sony has agreed to our plan, and when Philips responds positively, the MPEG video compression and decoding industry association will be established. ”

Thinking of the predictable prospects, Jun Oshima couldn't help but get excited, because of his decision, Panasonic will continue to lead the global home audio and video market.

It's all thanks to my Oshima Jun......