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Chapter 240 Angel Investment

The next day, Professor Murray and Harvey returned to the radio room of the Radio Society, and by this time, the contents of the blackboard had been completely wiped clean. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ(《》7*

But it doesn't matter, because they've already written it all down.

The reason they came here was to ask the members of the association if they knew who wrote the numbers on the blackboard.

But when asked, everyone shook their heads.

Some people have never seen these numbers at all, and those who have seen them say they don't know.

And the only person in the know, Wu Fei, did not come over because his girlfriend was still twisted to her ankle and did not come over because he had to take care of her, so Professor Murray did not know any useful clues.

The most troublesome thing is that two days ago, the MIT Radio Association happened to welcome two groups of people who came to visit, and those members came from more complicated ways, including other universities and ham friends who have already worked in the society.

Therefore, it is not necessarily a person inside the MIT, but also someone from outside the school. Professor Murray questioned several people, but received no useful information.

"Who the hell is it?"

Professor Murray couldn't figure it out.

He basically went through all the people on campus, and he excluded those who were a little possible.

Therefore, there is only one possibility left, and the other party is an off-campus person.

After Professor Murray asked a few times, although he regretted it, he no longer had much hope.

However, Harvey did not give up, but picked up chalk and wrote a short briefing on the blackboard.

The content is very simple, that is, to offer a reward to find the person who wrote those numbers on the blackboard a few days ago, and if anyone knows who it is, they are also welcome to call him directly on his mobile phone to contact. And, in order to avoid misunderstanding, he also named only the algorithm in it.

Harvey did not say what the specific reward was, because he himself was well-known in the Radio Association, after all, he was Professor Murray's protégé, as long as he was an old man of the Radio Association, he had more or less heard his name from Professor Murray's mouth.

In fact, Lin Hong did not know the spread spectrum communication technology, and the radio codes he mastered were only narrowband communication.

Therefore, when he performed the calculations on the blackboard, he did not have a clear purpose at all, but intuitively felt that he could restore the actual information by using this method.

When he got home, he immediately recalculated what was on the blackboard.

And, this time, instead of using manual calculations, he used a computer to enter all the data into a file, and then wrote a small program to read the data in the file according to a specific algorithm, and then automatically calculated according to the algorithm he set, and finally obtained a completely different chip sequence.

Through the final obtained code chip sequence, Lin Hong performed reverse deduction, and finally deduced the decoding sequence backwards.

According to the original chip sequence, as long as the decoding sequence is used, and then the matrix transformation such as multiplication or addition and subtraction is carried out according to the specified method, the final real data can be obtained smoothly.

Although he has very little information in his hands, and this decoding sequence is not necessarily 100% correct, he knows that his method is not wrong, as long as he has more measurement data, it is only a matter of time before he can obtain an accurate decoding sequence.

However, after this step, he could not continue.

He didn't know what the resulting chip sequence actually represented.

It's not even clear why such a transformation is needed to get this encoding.

He got the key, it was all due to his sensitivity and intuition about the data, but why he had to get the key in this way, he had no bottom in his heart. (《》7*

He just had a vague impression in his mind, he saw this process as a kind of encryption and decryption of radio coding, as for why it was done, it was not very clear, in fact, he also felt strange, there was only a little bit of information in the first place, why did it make it so complicated? Is it just for encryption?

The semester is almost over, the school has fewer and fewer courses, and some electives have entered the exam stage.

The exams here are also very distinctive, and there are basically very few closed-book exams, especially elective courses. The teacher usually assigns you a topic and asks you to write it as a thesis.

As for how to write, it's up to you to play, go to the library or ask some professionals for advice.

Although Lin Hong doesn't attach much importance to grades, he still takes these topics seriously, because he can learn a lot in the whole process of completing his thesis. He can also see that the final paper is not the goal, the key lies in the process, the student's ability to investigate and solve problems.

Although Texas Instruments' acquisition of SAM was unsuccessful, SAM's recent development has been good.

Now SAM has added three new members, all of whom are hired technicians, both software and hardware.

In recent times, SAM's product development has not stopped.

There are several versions of the CDAD device.

The previous version was designed for broadcasting and synchronization in public places, so many infrared transceivers were used in the design, and the angles were also taken into account in all directions.

Later, SAM found that many users buy CDAD, in fact, they install it in their bedrooms, and some people even install it, just to facilitate themselves and their families, because compared to expensive mobile phones and phone bills, calculators are obviously very economical.

Especially the text message function, in this period, this function did not appear on mobile phones, and the text message function in the calculator is a very big innovation. So, this software was immediately welcomed by everyone as soon as it was released.

This software is also the most popular of all calculator software.

Nowadays, the common means for students to communicate with other friends is no longer through letters or phone calls, but directly using the calculator in their hands, and even in class, everyone secretly uses this text message.

Therefore, in order to meet this requirement, SAM has specially launched a home version of the CDAD device, on this version, the display and buttons are directly integrated, no longer just a synchronization device, but also have the function of a calculator, which is more powerful than the modified calculator, and even comparable to a computer in some aspects.

SAM also fulfilled Matthew's promise to the principal, and took the lead in developing a number of software specifically developed for school life. For example, if the teacher assigns homework or a topic, he or she does not even need to copy it again on the blackboard, but simply takes out his calculator and uploads it to the CDAD server, and the students download it directly.

If there is any important notice issued by the school, it can also be sent to the calculator in the hands of each student at the first time, which greatly improves the efficiency of information transmission

According to Matthew's idea, it is better to integrate the functions of computer networking into the CDAD device, so that as long as it is directly connected to the modem, it can be connected to the Internet without having to buy a separate computer for synchronization.

Of course, this feature has not been implemented for the time being, but only as a future development direction.

Texas Instruments and SAM talked several times, but eventually the acquisition was able to go ahead because their conditions were too demanding.

However, SAM's recent developments have caught the attention of some angel investors.

Angel investment is also a form of venture capital. Angel investors usually refer to investors who invest in very young small and medium-sized enterprises or teams that have just started a business.

For entrepreneurs, they may just have good creative ideas and technology, but lack enough start-up capital, and at this time, if someone can invest in them, they may be able to soar and create miracles. This person or institution, in the eyes of entrepreneurs, is like an "angel", which is very helpful to entrepreneurs and helps them in the snow, so they are affectionately called angel investors.

Angel investors can be individuals, institutions, usually the first investors in small and medium-sized enterprises, and the amount of investment is also large and small, or even only tens of thousands of dollars, which is very different from those venture capital that can easily be millions or even hundreds of millions of dollars.

In the past few days, several angel investors have expressed interest in SAM.

Compared with selling the entire company directly, everyone is more inclined to absorb investment, continue to make SAM bigger and stronger, and provide better services and products, so we are not exclusive to angel investment.

Although SAM has been making a profit, but in a month, the profit is not very large, and it is okay to develop steadily, but considering that the speed of change in the electronics industry is very fast, if it has been content with the status quo, it is likely to be replaced by other companies, thus being eliminated by the market.

This is not alarmist, because similar companies have begun to appear in the market now, especially after someone learned that the infrared data association is about to release the infrared standard communication protocol, many companies have begun to prepare similar business, and even Texas Instruments has set up a special department to develop similar products similar to CDAD devices.

Everyone seems to see that wireless communication will be a huge cake in the future, and infrared communication is the first more mature solution.

In the past, the major manufacturers were fighting their own battles and developing the first equipment, not only the transmission speed and efficiency were very low, but also the technical parameters in all aspects were not uniform, and there was no general standard, resulting in the inability of various platforms to communicate with each other.

Now, with the Infrared Data Association taking the lead, developing a unified standard, and then everyone joining in, can greatly promote the development of infrared data transmission technology.

However, few people know that the core technology of the Infrared Data Association was purchased from a teenager.

Time passed quietly, and from tomorrow, the school began its summer vacation.

Before school, Lin Hong received a text message from Si Qian.

"After school, let's go together."