The newest cell phone jammer has been listed in the high tech products

The newest cell phone jammer has been listed in the high tech products.
Produce periodic about vibration. Figure 2-17 in the lower right corner is the one installed in the post-shell mobile phone vibrator schematic. Also a cell phone vibrator is flat button type, a diameter of about 10mm, and thickness dimensions of approximately 4mm. Vibration when the upper and lower vibration. Phone vibrator structure Figure 2-17 phone vibrator structure of Figure 36 2.5. The structural design of the speaker, microphone and buzzer 2.5.5. (Speaker) microphone (Microphone), the structural design of the speaker of the speaker, microphone and buzzer and buzzer (Buzzer) structure has three sound devices with SMT / DIP soldering pin contacts two types of peace, which is rely on PCB coat elastic contact with its electrical conductivity through.
These operating systems have the appropriate intellectual property rights, the overwhelming majority of smartphone makers do not have the ability of independent research and development of the operating system, and more based on the OEM's produced, not to seize the initiative, because the product uses the operating system needs to be intellectual property owner's authorization, the high licensing fees make the cost greatly, independent technology upgrade is also facing a huge bottleneck. Therefore, the soft underbelly of the domestic mobile phone software development, has made the price advantage of domestic mobile phone industry vanished with "high imitation mobile phone crackdown carried out by countries to protect intellectual property, is the domestic mobile phone industry is facing huge threat.  Structural design to do is to metal components, interfaces, and screws to the PCB with a good grounding. Good grounding on the chassis using the plastic plating. 2.7 Shielding Design 2.7.3 shielding design of the structure of the shielding design, RF circuits, baseband circuit, power circuit foil, metal shield for the physical isolation. The specific design of programs to understand the circuit shielded target, and then select the appropriate shielding effectiveness of materials, structural design.
Experience has shown that the 8000V electrostatic air discharge distance is greater than 4mm, the energy generally decay to zero, you can isolate the static. ESD release design is coming in conduction electrostatic grounding method, the static-oriented shell, to avoid the release of the chip. For example, prominent metal chassis ground. LCD around the edge of the metal shell package ground is very effective electrostatic like the release method. ESD grounding and EMC shield grounding is the overall consideration. Electrostatic protection, first of all try not to let the ESD can enter the shell internal to diminish its energy into the shell. Isolation whatsoever, leakage into the shell inside the static as far as possible from GND guided walk. The using time of cell phone jammer can reach up to 2-2.5 hours.