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Text 139.  under the company's development

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    The technical content of the mobile phone itself is not high. The most important thing is the antenna and dozens of circuit boards. Li Mianhua can solve these problems, but if Mobile Phone wants to operate, it must have its receiving channel.  The propagation channel of Motorola Mobile Phone is very similar to that of a digital pager. A processing center and peripheral base stations can flexibly allocate channels to each handheld terminal according to signal strength, allowing the same frequency to be reused in completely different locations, and will not  There is interference.  This makes it possible for a large number of handheld terminals to be supported simultaneously in an area. Systems such as Cellular Wireless Communications operate in a small hexagonal "honeycomb" shape, so it is also called a cellular phone system standard.  The first generation of mobile communications in cellular phone systems mainly used analog technology and frequency division multiple access (FDMA) technology.  Due to the limitation of transmission bandwidth, although long-distance roaming of mobile communication is not possible, mobile communication can be carried out within a certain area.  In order to accommodate a large number of users, a cellular phone system can divide a geographical area into many cells.  Instead of using a single high-power transmitter, each cell is served by a low-power base station.  Since the range of influence of these base stations is relatively limited, the same spectrum can be used again in another cell some distance away.  Frequency reuse and handoff operation methods together form the main body of the cell (cell) concept.  Li Mianhua doesn't want Tianyi to produce Mobile Phone now. That's too unrealistic. Motorola has not yet mass-produced this product, let alone Chen Yihua's Tianyi. Li Mianhua just wants to start the transmission channel of Mobile Phone and establish it first.  Cellular phone system.  The base station is an important carrier of the cellular system. If the pager wants to be digitized, the base station needs to be upgraded. If the mobile phone wants to operate, its base station must become a small processing center. What Zhao Mianhua means is to have a peripheral base station for the pager in place.  , relying on the upgrade of peripheral base stations for pagers, mobile communication channels for mobile phones are also established. In this way, these peripheral base stations can not only enable digital transmission of pagers, but also establish wireless phone communication channels.  Chen Yihua also agreed with Li Mianhua's point of view. Although mobile phones are still immature and cannot effectively operate in the market, a cellular system can be established first. There is no rush to digitize pagers. The upgrade of peripheral base stations can wait for a while. After all,  Now that Tianyi pagers have no competitors, there is no rush at all. If the cellular system and the base station can be operated at the same time, Chen Yihua will undoubtedly be able to save a lot of money.  If Tianyi wants to develop, it must have a long-term vision. If the company wants to grow, it cannot only have one product. Chen Yihua has the memory of future generations. Of course, he knows that pagers are destined to be eliminated in future generations. Mobile communications are the future of this type of product.  .  Although the company has no plans to produce mobile phones yet, and it would be a waste of money to build communication base stations in advance, Tianyi Company will definitely develop mobile phones in the future. This should be done to prepare for the future in advance. Tianyi now takes advantage of the most important channels of mobile phones.  The problem is solved. As long as the American Mobile Phone product is mature and available, Tianyi can successfully market this product by assembling a copycat of the American Mobile Phone.  'Old Li, I remember you told me that a lot of equipment for the cellular phone system needs to be imported from Motorola. Mobile phones have not yet been launched in the United States. Motorola will definitely not be able to cooperate with us on this project. We have the ability to do it ourselves.  Will this base station be built? If the communication channel between mobile phones and digital pagers can be solved at once, Chen Yihua certainly cannot refuse to agree. It is not that he has no money, but the base station for cellular phones cannot be built just by talking about it.  Yes, it requires a lot of hardware and software facilities, which are definitely not available in Hong Kong. Those equipment need to be imported from the United States, and many of the equipment are unique to Motorola. It is impossible for them to tell Chen Yihua the technology they are developing, and it is impossible for them to pass on these secrets.  equipment was exported, so Chen Yihua was very worried about whether Li Mianhua could develop a cellular phone system during this period.  'Boss, the most secret equipment for building a cellular phone system is the computer transmitting terminal. This is where Motorola is ahead of others. Other important wireless receiving devices can be obtained from other companies in the United States. We have support from Apple.  In addition, we have developed digital transmission technology ourselves, and we can develop it even if we leave Motorola. However, our computer receiving terminal also needs a set of AMPS-1D operating software. This operating software is an important part of the cellular phone system.  ' 'Has the operating software of AMPS-1D been developed? Can't we make it ourselves?' Chen Yihua didn't understand something that was too professional. He just wanted to know whether he could buy this software or whether he could develop it himself.  HeardIn response to Yihua's question, Zhao Mianhua handed this question to Zhang Youfang, an expert in software. In fact, before Chen Yihua came, the engineers in Tianyi's internal R&D team had already discussed this issue.  'Boss, if we want to develop a set of operating software similar to AMPS-1D, it is not impossible, but it will take time, so the overall construction of the cellular phone system will be delayed a lot.' 'Then this set of operating software is  Which company developed it, Motorola?' 'Boss, it was not developed by Motorola. AMPS was developed by Professor Stephen Fonash, his students and visiting scholars from the institute. The project was completed with the funding of the Electric Power Research Institute project  Yes, we just need to get the authorization letter for the patented use of this software from the institute.¡¯ ¡®Oh, really, in that case, Anna, please contact Li Xiujing and see if she can get the authorization letter for this software first.  , if not, let her find the team members who originally developed this software. Then we will spend some time and develop our own operating software similar to AMPS-1D.' Chen Yihua heard that the technical source of this software did not come from Motorola.  Subconsciously, I breathed a sigh of relief. The results of the research institutes also made things much easier to handle. Many of the results of some research institutes in the United States will be traded and used in business. Of course, some important technologies will definitely not be spread to outsiders, as long as they do not involve arms.  , operating software such as satellites, most software patents, the research institute will not prohibit trading.  Chen Yihua basically agreed with Li Mianhua's opinion in the office. Tianyi Company's next research direction will mainly focus on the construction of cellular phone systems and telecommunications peripheral base stations. It is hoped that by then the company's peripheral base stations can carry out numerical transmission while also  Mobile communication transmission.  "Friends, can the Hanzi code we have developed now be used on computers?" Seeing that the peripheral base station was almost explained, Chen Yihua turned the topic back to Chinese software.  "Boss, what are you talking about?" Chen Yihua said so generally that Zhang Youfang didn't realize what he meant.  'I want to ask you if you can write a set of computer Chinese character input method software based on this set of Chinese character encodings' Zhang Youfang's eyes lit up unconsciously when he heard Chen Yihua say this. Even the other three researchers sitting in the office looked very excited. Tianyi Company  Most of these engineers have knowledge of computer software. Today¡¯s computers all use English software. Although the Chinese version of the pager software developed by Tianyi Company is used on pager receiving terminals, strictly speaking it is also the first  Set of Chinese version software.  'Boss, yes, but the Chinese character source code of our current software is not comprehensive yet. It will take a little more time to build a Chinese character input method software.' Zhang Youfang looked very excited. They developed the Chinese character pager in accordance with Chen Yihua's requirements.  I never thought that this achievement could be used on computers. A set of software has many aspects and interoperability in many places. If we follow Chen Yihua's thinking, computers can completely Chinese culture.  Anna has been listening to the conversation between Chen Yihua and the engineers. She has managed Tianyi for so long, and she knows more than Chen Yihua in some aspects. Of course, she cannot not understand the meaning of what Chen Yihua and the others just said, 'Boss, if you can figure out  Does the Chinese character input method mean that the time has come for our Tianyi Company to enter the computer market?' Anna looked at Chen Yihua with bright eyes, waiting for the other party's answer. In fact, Tianyi Company has already started assembling computers, and Chen Yihua's three companies  It has digested no less than a hundred computers. The accessories from Apple are very complete, and it is not difficult to assemble a set of computers. Before Anna came to Tianyi, she helped Chen Yihua take care of Apple in the United States. Of course, she knew about the huge market for computers, but Chen Yihua used to  They kept saying that the time was not right, so Tianyi stopped the project.  Chen Yihua pondered for a moment, and then said, 'Anna, Tianyi's movements are too big now. Let's wait for a while. When the company officially develops a Chinese character input method, we will consider this issue again.' After a pause, Chen Yihua ignored Anna's dim gaze.  , and then said to Zhang Youfang, "Friends, according to the development steps of Chinese software, can we develop software in Japanese, Korean and other languages?" "Yes, but we need the cooperation of people who understand such languages" Chen Yihua is not in a hurry to produce computers  , but they are eager to develop language software for other countries. With the experience in developing Chinese version software, it is very simple for Tianyi to develop software for other languages. Chen Yihua wants to take advantage of others before they can react.  Input methods for important languages ??in the world have been developed, and these input method patents will be registered when the time comes. With such patents in hand, it will no longer be a dream for Tianyi to last forever.
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