Rebirth of the Strongest Tycoon

At this time, the laser disc technology has not yet developed to the CD stage, and is in the initial LD ​​laser video disc stage.

Even laser disc technology has nothing to do with computers.

In terms of technical principles, laser discs have two aspects, namely writing information and reading information.

Writing information is to use laser focusing to form a beam with a diameter of about 1 micron on the optical disc medium, and burn small pits on the optical disc. Each small pit and each flat is a bit of information to represent data "1" and "0".

For reading information, according to the difference in light reflection between the pit and the non-ablated area, the information is read by laser, and the modulated laser beam is projected onto the optical disc medium without recesses, and most of the incident light returns, in the recesses , due to the depth of the pit, the reflected light cancels out the incident light and does not return.

In this way, the "0" and "1" information recorded on the optical disc medium is read out according to the difference in the reflectivity of the light beam.

Then in 1972, Philips of the Netherlands introduced the Laser Disc Player and introduced the Laser Disc System - LD, that is.

LD-laser discs record analog signals. The analog recording uses FM modulation. The disc has a large space. The storage method adopts double-sided storage technology and double-sided playback technology.

It's just that the diameter of the LD-laser disc has reached 30 centimeters, and the laser disc machine is very bulky. Although Philips formulated the LD format standard in 1978 in order to reduce costs and reduce the market circulation threshold, it was still because of its cumbersomeness. And the high price, it cannot be rolled out to households on a large scale.

Then at this time, the domestic tape player appeared again, which gave a major blow to the LD laser disc player.

Knowing that it was impossible, Philips sold most of the copyrights of the LD laser video disc format to Pioneer, an island country.

After the Pioneer Company bought the format copyright, it launched the first LD player VP-1000 in July last year, and combined with its own strength in the field of car audio, the development of the car LD player is underway.

The report also stated that after selling the copyright of the LD format, Philips is conducting research on new laser disc technology, mainly to solve the drawbacks of analog signals and develop a new generation of optical disc storage systems.

Although technology research and development is a very secret thing, it is inevitable to register a patent in order to seize the technical level, so even if you do not know the detailed technical principle after the registered patent, you can still guess the general category of the technology.

Therefore, Lu Chao can judge that,

Now the world is not only the industry leader of Philips, but also the island country Sony Corporation, the island country Panasonic Electric Company, West Germany Siemens and other companies are conducting related research.

...

After closing the report, Xia Yu combined the memories in his mind and began to think about how he should act.

Although Xia Yu is not proficient in CD technology, he has heard of it. After all, whether it is the VCD player of later generations or the CD in the Internet age, it is subject to the yellow book standard and red book standard of CD.

But these two standards are for later generations. After reading the report, Xia Yu can be sure that these two standards have not been established at all, and there is still a long time before they are established.

As the saying goes, first-class companies make standards, second-class companies make brands, and third-class companies make products!

Tiangong Electronics Co., Ltd. wants to become a giant in the field of optical discs and storage in the next few decades, and must not miss this opportunity to become an industry standard setter.

I still remember that in the past life, it seems that Philips and Sony jointly developed the Red Book Standard and the Yellow Book Standard, which also enabled these two companies to stand at the top of the pyramid and suck blood in the torrent of the information revolution.

Xia Yu looked at his watch and found that it was only about ten o'clock, and it was more than an hour before he got off work.

He stood up and said to Huo Jianning, "Jianning, accompany me to the Tiangong Science and Technology Laboratory to meet Lu Chao. I have something to talk to him about."

Huo Jianning knew that it was the report, so he readily agreed, and then went with Xia Yu.

Soon, Xia Yu came to Tiangong Science and Technology Laboratory again, and found Lu Chao who was concentrating on playing with a precision instrument.

"Dr. Lu, the chairman is here. I want to talk to you about something!"

Huo Jianning walked to Lu Chao's side and raised his voice, causing Lu Chao to wake up.

The latter raised his head, pushed the glasses that had slipped a little because of the grease, and said to Xia Yu with a burning gaze, "Chairman!"

Sure enough, just like what Huo Jianning said before, Lu Chao's beard is very long, and his hair is a little messy, and there seems to be a yellow solid at the corner of his eyes.

It's just that although he looks sloppy, the eyes under his glasses are exceptionally bright, showing his different look and making a deep impression on Xia Yu.

"Dr. Lu, stop for a while, let's go to the office and sit and chat. I read your report and I want to discuss some ideas with you."

Xia Yu said softly.

Hearing the discussion, Lu Chao's eyes became brighter. The brain hole of Chairman Xia Yu gave him a great thought impact a few days ago. Now there is still a chance to exchange ideas, he has some expectations in his heart.

"Okay, Chairman, I'll turn off the instrument first."

After speaking, he turned around immediately and turned off the instrument swiftly with his hands and feet.

Half a minute later, he came to the office with Xia Yu and Huo Jianning.

As soon as he sat down, he couldn't wait to ask: "Chairman, is there anything wrong with my report?"

Xia Yu put the report on the table, smiled and shook his head and said: "The report is fine, the content is very detailed, it can be seen that you are serious, I want to talk to you about the future of laser discs and what we can do. !"

Lu Chao was refreshed, and immediately opened the notebook he was holding when he came to the office, sat up straight, looked at Xia Yu with burning eyes, and said, "Chairman, say it!"

Xia Yu thought for a while, then found an entry point and started talking.

"The LD laser disc system uses analog signals and reads optical information. Although a 1-micron laser beam is used for recording, the area on the disc has been fixed. Even if it can be recorded on both sides, the information that can be stored is limited. , the amount of information stored is proportional to the size of the disc."

"But the shortcomings are also obvious. It is very sensitive to interference and noise, and because it is laser beam ablation, it is easy to hide dirt and even cause signal errors due to scratches and contamination."

"Of course, it is also obvious that the volume is too large, which is one of the reasons why the LD laser disc cannot be promoted on a large scale. It is too bulky when combined with a laser disc machine."

"I have some thoughts on these."

"The most fundamental cause of these problems is actually because of the analog signal, which leads to inaccurate data reading and is easily affected to cause reading errors."

"Then can we develop a photoelectric conversion technology, such as pulse counting? Transcoding the analog signal for digital processing, and then compressing and recording the transcoded digital signal on the optical disc, which can directly solve the shortcomings of interference and noise sensitivity. "

"Not only that, we can encode and address each part of the information, just like a library, classifying books in science, humanities, military, health, etc. on different shelves, and when looking for information, You can find the information you need in the shortest possible time.”

"An error detection and error correction scheme can be added to reduce the bit error rate."

"In this way, in the same size disc, we can store dozens or even hundreds of times of data, then the size and weight of the disc can be reduced, and the volume of home-style CD players and video players will be reduced a lot. , the market will reopen.”

"Laser discs are getting smaller, and it should be enough to develop a Walkman that plays laser discs."

"..."

Lu Chao flushed with excitement and said loudly, "Chairman, your idea should be right. This is the right way. If we really develop the product, it will make a great contribution to the world."

"Not only the Walkman market, but the larger computer market will have a huge impact."

Xia Yudan smiled and said: "Dr. Lu, if I'm not mistaken, Philips and Sony are already researching related technologies and have made some progress. If we want to catch up, do you think it will be difficult? "

Lu Chao's originally excited mood cooled instantly, he frowned and thought quickly.

After a long time, he frowned and said: "Chairman, according to the information I have collected, the patents applied by Philips and Sony should not have developed photoelectric conversion technology. Maybe they have developed another technology. It is difficult to say."

"Edison once said that genius is ninety-nine percent perspiration and one percent inspiration, but that one percent inspiration is the most important."

"Since Philips and Sony have been researching for several years and haven't developed the technology, it is definitely not a problem of scientific research strength. It should be that they haven't found the right direction, and they are still experimenting one by one."

"But my intuition tells me that your idea is right. Whether it is correct or not, you will know after the experiment. Our laboratory has the world's top experimental facilities. The only thing that can be regarded as a restriction is the elites in the field of electronics, but I can contact My classmates and friends may be able to find some people to come and develop together."

"As long as they are willing to help me, I have some confidence!"

Xia Yu immediately said: "Dr. Lu, the company has never been soft on talents. As long as you can poach people, you will definitely satisfy them in terms of treatment, and they can calm down and do scientific research."

Lu Chao nodded and said, "I'll call now!"

After speaking, he got up and prepared to leave the office.

Xia Yu didn't know whether to laugh or cry, and immediately said: "Dr. Lu, you sit down first, don't worry, I still have something to say."

Lu Chao sat down again and looked straight at Xia Yu.

Xia Yu continued: "I suggest that you pay close attention to the trends of Philips and Sony when developing technology. We must strive to become the leader and standard setter in this field, which determines the future of the company."

"Besides, you recruit as many people as possible. CD technology represents the future, but tapes and Walkman cannot be left behind. Walkman is the cash cow of technology research and development, do you understand?"

Lu Chao took a deep breath, nodded heavily and said, "Chairman, I understand what you said, the development of the Walkman has never stopped, and I will realize your vision as soon as possible."

At this time, Huo Jianning also said aloud: "Chairman, I will also strengthen supervision and speed up on the premise of ensuring quality and quantity."

Xia Yu nodded with satisfaction: "Yeah!"

After chatting with Lu Chao for a while, he found that Lu Chao was obviously absent-minded. He should be thinking about technology, so Xia Yu simply sent him away.

After Lu Chao left, Xia Yu took a sip of tea, leaned on the sofa, and said to Huo Jianning, "Jianning, there is one thing you need to do."

Huo Jianning leaned forward slightly and said softly, "Chairman, please tell me!"

Xia Yu opened the report, pointed to a location and said to Huo Jianning: "Go and collect the information of the Pioneer Company in the island country. Although the LD format laser video disk system has disadvantages, it is not useless. It has a lot of advantages in the industrial and automotive fields. potential, and I'm ready to buy it if it's appropriate."

Huo Jianning took over the report, looked at the words Pioneer Company of the Island Country, nodded solemnly and said, "Okay, I will arrange for someone to collect information immediately."

"Um!"

"It's almost time for get off work, let's go!"

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