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  Lin Xuan turned his head and said something to the technician.

   Soon, the technician sent a 10GB movie file again in front of everyone.

"Ding!"

  Looking at the "sent successfully" screen displayed on the projection screen, people showed dumbfounded expressions.

  What the hell?

   Didn’t Lin Xuan use a fan to block the communication between the phone and the light just now? How can I still send the file successfully? !

  Although the sending speed was slightly delayed this time, reaching nearly one second, it did show that the sending was successful!

  At this time, in order to prove that "the file has been sent successfully".

  A person carrying a camera came to Lin Xuan's side and pointed the camera lens at the phone screen.

  At this time, there is an extra movie on the super-large candy bar phone, and there are two movies appearing on it!

  Responding to this, tens of thousands of spectators and nearly 2,000 reporters all showed disbelief in their eyes!

  Including the presidents of Motorola, Nokia, Sanxing, Cisco and other companies!

"This unscientific!"

   Seeing that Mingming had covered the light with a fan and put the phone in the shadow, it turned out that the phone was still able to communicate? !

  The presidents of these large international companies uttered unbelievable words, with puzzlement and shock in their eyes!

   "Could it be that when it was covered, Lin Xuan used wireless LAN communication technology instead of transmitting data?"

  Cisco President Chambers murmured, but soon he shook his head.

  Because the file transfer time just now is only one second, how is it possible to transfer a 10GB file in one second? !

  The network speed that can transfer 10GB files in one second, only wireless optical communication technology can transfer files so quickly!

   "How the **** does this work?"

  Cisco CEO Chambers looked deeply puzzled.

  At this time, he seemed to have seen an alien black technology, but he couldn't understand how the alien black technology was made and what kind of principle it was!

  At this time, he could only scream in his heart, "This is unscientific! This is unreasonable!", but he had no choice.

   "The secret is actually very simple, and its layout cost is also very low."

  Lin Xuan smiled and took out a somewhat dull round object from the wooden wall beside him.

"I see!"

   After seeing Lin Xuan take out a dull but not very dazzling thing from a wooden wall.

  The CEO of Cisco, Chambers, had an expression of enlightenment in his eyes.

   "I didn't expect to be able to use this point to break the game, and the cost is so low!"

   Chambers was very annoyed as he spoke.

  He didn't think of such a simple cracking method, which really violated his identity as the president of Cisco.

  The cracking method is actually very simple, that is, the principle of using mirrors to reflect light!

  The fan really blocked the direct communication between the mobile phone and the light bulb. According to common sense, there is really no way to communicate directly.

   But at this time, if there is a strong reflective material as a relay to directly reflect the light signal of the bulb, then this will indeed allow the mobile phone to continue to communicate!

   "It's really a genius idea. This idea can be said to greatly make up for the shortcomings of wireless optical communication technology.

  If there are many reflection points like this, it is absolutely possible for the mobile phone to obtain the same communication capability as microwave communication, so that the mobile phone is always in the most perfect state. "

   Chambers sighed with emotion, but in an instant he frowned again, and then there was a little disappointment in his eyes.

   "If this is the only way, then this technology is nothing more than that."

  Arranging reflection signal points is a genius idea, but if the environment of the reflection points is not well arranged, it will make the environment of the room look very ugly.

  Can you imagine, if there are many small bright spots hanging on the wall of your home, wouldn’t it look sloppy?

  It doesn't look good when they are scattered scattered on the wall.

  Although this is a reflective material, it looks like it has been processed obviously, and it will not be very dazzling like some strong light reflective materials, but it is not good-looking!

  So the technology is good, but that’s all it is, and…

  The corner of Chambers’ mouth curled up into a mocking smile, and then slowly said:

  “Although the design is very ingenious, the fear of being blocked by wireless light has not been resolved, so this wireless optical communication technology still has fatal flaws.”

  The other side.

  Looking at those curious eyes, Lin Xuan took out an aluminum iron bucket, threw the mobile phone into the iron bucket and asked everyone with a smile:

   "Do you think you can still communicate in this way?"

  In an instant, Chambers, who was mocking Lin Xuan just now, was like a duck being pinched by the neck, and his face froze instantly.

   "This is impossible, it is impossible to still communicate!"

   Chambers, who was in a daze, spoke his words slowly.

  The mobile phone has been thrown at the bottom of the plastic bucket. Although the plastic bucket may reflect light, the plastic bucket is not very reflective. It is impossible for them to communicate in this situation!

   At the same time, it is not only Chambers, the president of Cisco, who holds this view, but also the boss Li of Sanxing Electronics.

"continue."

  Lin Xuan turned his head and said something to the staff.

"receive."

  The staff replied with a smile, and then manipulated the mouse to send another file to Lin Xuan's mobile phone.

   "Beep!"

  Just dragged and sent with the mouse, and then a "send failed" prompt box appeared on the computer screen.

   "Sure enough!"

   While tens of thousands of spectators were stunned, Cisco CEO Chambers breathed a sigh of relief.

  After seeing the "send failed" prompt box, he was deeply relieved.

  It seems that the technology of Hantang Technology is not as scary as he imagined, which is really great!

  The audience at the scene showed disappointed expressions. It seems that this mobile phone is just like the experts said, and the wireless optical communication technology is indeed afraid of being blocked.

   At this time, I looked at the mobile phone at the bottom of the plastic bucket, but saw the prompt box of "Failed to send".

  The tens of thousands of spectators at the scene all showed disappointed expressions and felt a little lost.

   At this time, Lin Xuan picked up the phone on the stage, shrugged, and said helplessly:

   "Sorry, the storage memory of the phone is full just now, wait for me to delete the two movie files I just transferred before testing."

"Uh?!"

  Hearing Lin Xuan's words, tens of thousands of viewers and reporters at the scene blinked.

What?

   Didn’t it just fail?

  How did you hear Lin Xuan's words? It turned out that the failure was not due to a signal interruption, but the phone's memory was full and couldn't fit, so the sending failed? !

   At this time, tens of thousands of spectators and nearly 2,000 reporters all showed stunned expressions.

   In their stunned expressions, Lin Xuan deleted the two movies on the phone in front of the camera.

  After putting the phone back into the plastic bucket, Lin Xuan turned around and smiled:

   "Let's move on."

"OK."

  The staff member nodded slightly, and then repeated the action just now.

  But this time it is completely different from before, this time it shows "sent successfully", and the whole process only took two seconds!

   "Wow!"

   There was an uproar at the scene. Throwing this mobile phone into that plastic bucket can still communicate and transfer files? !

  The tens of thousands of spectators and nearly 2,000 reporters showed shocked eyes.

   At the same time, all the netizens on the Internet who were watching the live broadcast of pictures and texts in the penguin group or forums all showed dumbfounded expressions!

"This unscientific!"

  Even though he already had a premonition in his heart, Chambers couldn't help shouting "unscientific" when this scene actually appeared in front of his eyes.

   Looking back at Chambers, the competitor, Lin Xuan turned his head to look at the camera lens and said:

   "Our wireless optical communication technology is not as weak as everyone thinks.

  Our wireless optical communication technology introduces an intelligent adjustment mode, which can adapt to the environment of strong light and dark light and maintain communication.

  These smart adjustment modes do not require you to do anything, it will be done automatically!

  The specific performance is our wireless optical communication technology, which has a strong signal transmission capability.

   It can almost be said that as long as there is a little dim light, our mobile phones can intelligently recognize the signal!

  How far is this intelligent recognition ability? Let's speak with facts. "

   As he spoke, Lin Xuan took out a cloth made of clothes and covered the phone, making it airtight.

   In this regard, the staff member nodded slightly, and then sent another file under the eyes of people in astonishment.

"Ding!"

   Less than two seconds later, the crisp voice sounded again.

  Looking at the "sent successfully" prompt box, the scene was instantly shocked and uproarious!

  Can you send documents even with a piece of cloth wrapped like this?

  This wireless optical communication technology is too scary!

   "As you can see, our new technology is not as weak as everyone thinks.

  Because our wireless optical communication technology is not a simple visible light communication technology, which also includes invisible light communication technology, that is, far-infrared optical communication technology!

  In the mobile phone, which is a device that everyone uses every day, in order to prevent the communication light emitted by the mobile phone communication module from being too dazzling and affecting the user experience, we prefer to use invisible light communication technology in the mobile phone device.

  When our mobile phone is in a special environment like just now, it is when the signal is seriously blocked.

  Although our mobile phone can't see any abnormality, our "communication module" is actually in the brightest far-infrared light communication state!

  This "brightest" state can easily penetrate our clothes, after all, our clothes seem to be airtight.

   But in fact, they can still have a large gap through which light can penetrate. In this case, there is naturally no problem for the two parties to communicate.

  The most special thing is that because our naked eyes cannot recognize such invisible light, the "brightest" invisible far-infrared light is not dazzling, and even our naked eyes can't detect it at all! "

  People heard Lin Xuan's words, and they finally understood why the light could still be transmitted after blocking the light with a cloth.

  It turned out that the brightened invisible far-infrared light was used to transmit the signal, so they could continue to communicate.

  After realizing this, they all showed admiration.

  (end of this chapter)