Coquettish Rebirth

After Mr. Zhang made the phone call, Mr. Li Dong from the Central Advisory Committee and even the public security department called to thank Jia Hongjian one by one. In the end, even Mr. Zhu, the core of the future leadership, called Jia. On Hung-chien's cell phone, he thanked Jia Hung-chien once.

At this time, Jia Hongjian was busy on the phone, while Huaxia Hi-Tech, no, it should be said that Mr. Ni Guangnan from Xiaomi Technology was researching the VCD standard.According to Jia Hongjian's request, he was preparing to develop the image decoding chip in the VCD. To put it bluntly, it is to read out the mpeg-1 encoded information used by the VCD and restore it into an image. Difficult technical content - in the late 90s in history, the software on the computer, such as Super Jieba, could straighten Chapter 1 Super vcd?Then decode mpeg-[-], that is to say, after using this software, the computer can directly watch vcd discs!

Such a thing that other people can do with software, let Mr. Ni Guangnan use a chip to do it, not to mention effortless, at least it is not too difficult.However, in order to manufacture a chip with the so-called super error correction function according to Jia Hongjian's request, this old man needs to have an understanding of other people's products.

At this time, the old man was looking at the printed information, and at the same time touched a Wanyan ube decoding chip at hand, came back to disassemble and study it, and Jia Hongjian directly suggested that Hua 5000 yuan go to Wanyan factory to buy one. .Anyway, there are no patents... So the old man has a Wanyan vcd at hand for him to disassemble and play with.

The information in this old man's hand is from an old colleague from the Chinese Academy of Sciences.As the place where China's highest-status experts are located, the Chinese Academy of Sciences always has more information than the outside world.What the old man is looking at now is about the various ideas of foreign manufacturers such as Sony when they created the VCD specification.

It used to be used in Sony, Philips and other manufacturers of Chapter [-]&D machines, but after a survey in foreign markets, it was found that many consumers are not very interested in VCDs. The reason is that the clarity of VCDs is actually not as good as VHS and other Wait until videotapes get better, and maybe even have a little room for development-remember, videotapes and audiotapes were used as floppy disks to record information in the earliest days!

Yes, video tapes and audio tapes can actually not only record the picture and sound of analog signals.In fact, as long as the video tape system is improved, the video tape can also support digital TV!Even the clarity can't be found anywhere!In this way, in foreign countries, after all, most people use genuine video tapes, and most people still rent video tapes.Therefore, vcd is not very important to ordinary people, and they don't need to invest an extra sum of money to update the vcd machine!As a result, Sony and other manufacturers really feel that the VCD standard is a bit tasteless-it's a pity to discard it if it is tasteless.

But Sony and the others are not stupid. They have also come to China, which is undergoing reform and opening up, to conduct research. However, after some research, they found that video tape machines are not popular in China these days, and most of the video tapes are pirated. It's useless to promote VCD machines in China-is it possible to let the VCD discs of the legitimate manufacturers compete with the pirated stalls?

But what Sony and the others didn't expect was that the popularity of vcd in China was due to the proliferation of pirated discs!In fact, this just happened to catch up with the increase in the income of the Chinese people.If video recorders became popular in this year, then the Chinese people would also popularize video recorders, and the Chinese market would be full of pirated video tapes!

Ni Guangnan disassembled Wan Yan's vcd and took a look, and found that the contents didn't seem to have too much technical content - including the movement, bald head and attached servo circuit, digital signal processing chip, mpeg decoding chip and video da transformation and encoding circuit.But this digital signal chip seems to be the digital processing chip on the CD player. After studying it carefully, the old man was really surprised to find that this so-called VCD is a big one with an mpeg decoding chip added. cd machine ah!The old man found a CD and put it in, only to find that he could read it!

What is the first impression of Ni Guangnan's power?The first feeling I gave to the old man was "Wan Yanyou are too big. They can make a small one like a hamburger in a foreign CD player. You can make it so big after adding a decoding chip?" Okay, In the old man's opinion, since this thing has no technical content, it is just a CD player with a video decoding chip added, so it can obviously be made as big as Sony's CD player!Great to make it the size of a laptop.Then just put a computer LCD screen on it-how simple it is!Even with a laptop battery, you can watch VCDs while on the train.And as long as the energy saving is better, it is still possible to spend 3 hours watching two movies on the train!

It has to be said that great power is great power. The portable vcd that Xinke Electric could not develop until about 99 turned out to be the result that Mr. Ni Guangnan figured out after taking a look.Even at this time, the old man began to want to suggest that Jia Hongjian develop a portable VCD system—even smaller than a notebook, with a ten-inch screen and a detachable battery, so that consumers can prepare two With three, three or four batteries, you can watch movies all the way on the train and get off the train, and the vcd disc is very small!

But the old man didn't have the urge to go directly to Jia Hongjian to talk about the VCD that he carried with him. He was going to finish his work first.After letting go of the VCD, the old man began to study the encoding system of this VCD. The encoding of this VCD is mpeg-1.And this year, in 92, Sony and the others succeeded in researching an mpeg-93 standard. It seems that the compression rate is higher than that used by VCD, but the information transmission rate is double that of the VCD standard, and the resolution is also higher. Not a lot.

This mpeg-2 standard seems to be the standard that Sony and the others are going to use to make DVDs, but Mr. Ni Guangnan suddenly thought of a strange idea at this time-if mpeg-2 is placed on the carrier of dvd, it will make the picture appear sharper. The vcd is clearer, although the data of the image at the same time will be larger, but the capacity of the dvd is much larger than that of the vcd, which is just right for use.but!But what will happen if you put this mpeg-2 format on a vcd, or what will happen if you put it on a cd disk?

The old man estimated that if the capacity of a CD is 700m, it can basically record DVD standard definition or mpeg-2 standard definition two-thirds of the video for 60 minutes!what does that mean?This means that if the mpeg-2 standard is used on cds, it will be a big improvement of vcds!

You must know that even if you use a VCD disc to store movies these days, it is not surprising that you often need to install two copies of a 90-minute blockbuster, or even occasionally need to install three copies!Although if you use an mpeg-3 format CD to install, you need to install two 2-minute blockbusters, but the definition is much higher!It is even said that if the definition is not lowered sparingly, according to the definition of VCD, a 90-minute movie can basically be compressed into the capacity of 90m CD!

That is to say, Ni Guangnan himself seems to have found a way between vcd and dvd?Hey, this thing seems to be in line with China's national conditions, doesn't it?Is there anyone researching this thing in the market now?It feels like this thing is much more fashionable than vcd cash!

After thinking about it, the old man searched for a long time, but he really couldn't find any information on this aspect, so he simply found Jia Hongjian with his own ideas.After the old man told Jia Hongjian, Jia Hongjian was surprised!What did he hear?A cd in mpeg-2 format?Do you know what this is?This is the so-called "Chinese DVD" that appeared in the last years of VCD - svcd!

Back then in 98 and 99, because Sony and other companies hadn’t started to promote DVDs, and the domestic VCD war was too fierce, some VCD manufacturers started to think about making something different from others. , and finally found out the d!

After these manufacturers produced svcd, pirates soon began to produce svcd discs, and then the so-called super vcd discs for watching movies on one disc came out on the market!At that time, you could watch a movie for only 8 yuan per disc, which was unbelievable before!This kind of svcd is also very affordable for ordinary people, after all, they can buy half of the discs less than before!

"Oh, I'm going! Old man, you..." Jia Hongjian looked at Ni Guangnan in disbelief, and now he really started to wonder if this Ni Guangnan is also a reborn person, otherwise ordinary people can't think of things that will appear in the future just like this ?

"What's the matter? This idea doesn't work?" Ni Guangnan asked a little hesitantly. He really doesn't have much confidence in front of Jia Hongjian now—he didn't expect that the program-controlled switchboard could be made into a phs wireless local call PHS System!

"It's not impossible, it's very good! Old man, you don't need to develop the mpeg-1 decoding chip, and directly develop the mpeg-2 one. At that time, we will directly promote this super vcd! And this thing can also be backward compatible, At that time, the products of the manufacturer who bought our chip can read the unique super vcd and other people's ordinary vcd, isn't this the core competitiveness!" Your support is my greatest motivation.)! ! !