Handset mainboard based on WIFI communication

Abstract

The utility model provides a hand -held telephone mainboard based on WIFI communication, including board body and the electronic element of fixed on board body, and electronic element includes CPU and the battery, keypad module, USB interface, WIFI&BT module, LCD interface, MIC1 module, MIC2 module, SPK module, earphone interface, vibrator, earpiece, memory that are connected with CPU, the independent charging terminal still has of battery. The utility model provides WIFI&BT module on the mainboard, uses the telephone when using this mainboard assembly, and the user can move freely in the environment with wifi or bluetooth, and the situation of fixed position caused by the power cord and network cable restriction of the past telephone is separated, so that the activity radius is bigger, and the use is more convenient. In addition, the multiplexing of switch -on and switch -off key and key is realized based on switch -on and switch -off key and key multiplexing circuit.

Description

Technical Field

[0001] This utility model belongs to the field of telecommunications technology and relates to a handheld phone motherboard based on WIFI communication. Background Technology

[0002] IP phones (also known as VoIP) are user terminal products offered by VoIP (Voice over Internet Protocol) service providers, and their functionality continues to diversify to meet market demands. Beyond the business functions provided by VoIP service providers, users also have more customization requirements for the terminals themselves. With the development of VoIP phones, their usage scenarios are no longer limited to fixed locations in office buildings, but also include situations where users can move freely. Against this backdrop, wireless voice communication equipment has emerged to adapt to these scenarios.

[0003] Mobile phones are commonly used wireless voice communication devices that enable long-distance communication via mobile communication networks. However, in some short-range communication scenarios, there is a lack of simple, easy-to-use, and versatile communication devices. Summary of the Invention

[0004] To address the aforementioned issues, this utility model discloses a handheld phone motherboard based on WIFI communication, which provides a wide variety of interfaces, is highly versatile, and allows users to freely decide which external devices to connect to the motherboard.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A handheld phone motherboard based on WIFI communication includes a board body and electronic components fixed on the board body. The electronic components include a CPU and a battery connected to the CPU, a keypad module, a USB interface, a WIFI & BT module, an LCD interface, a MIC1 module, a MIC2 module, an SPK module, a headphone jack, a vibrator, a handset, and a memory. The battery is also connected to an independent charging terminal. The battery supplies power to the motherboard, and the independent charging terminal charges the battery. The keypad module connects to buttons and a power button. The USB interface connects to external USB devices and charges the battery. The WIFI & BT module connects to wireless networks and external devices, including WIFI and Bluetooth communication functions. The LCD interface connects to a display. The MIC1 and MIC2 modules are microphones, the SPK module is a speaker, and the headphone jack connects to wired headphones.

[0007] Furthermore, a gain amplification module is also connected between the CPU and the SPK module.

[0008] Furthermore, the keypad module is connected to a key multiplexing circuit to enable key multiplexing of the power button.

[0009] Furthermore, the memory includes DDR RAM and Flash.

[0010] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0011] The motherboard features a Wi-Fi & Bluetooth module, allowing users of phones assembled with this motherboard to move freely in environments with Wi-Fi or Bluetooth connectivity. This breaks away from the fixed location limitations imposed by power cords and network cables, expanding the user's range of movement and making the phone more convenient to use. Furthermore, a power button and keypad multiplexing circuitry enables the reuse of both the power button and keypad. The motherboard also provides a universal USB interface, allowing users to select suitable external devices according to their needs. Attached Figure Description

[0012] Figure 1 A schematic diagram showing the connection of various electronic components in the motherboard of a handheld phone based on WIFI communication provided by this utility model.

[0013] Figure 2 This is a partial schematic diagram of a handheld phone using the motherboard of this utility model. The diagram shows some of the exposed interfaces and components of the motherboard. Figure 3 This is another partial schematic diagram of a handheld phone using the motherboard of this utility model, showing some of the exposed interfaces and components of the motherboard.

[0014] Figure 4 for Figure 3 Diagrams from different perspectives.

[0015] Figure 5 This is a schematic diagram showing the actual layout of some components in a handheld phone using the motherboard of this utility model.

[0016] Figure 6 This is the circuit diagram of the gain amplifier module.

[0017] Figure 7 This is a circuit diagram for a button multiplexing circuit.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1-Independent charging terminal, 2-First microphone, 3-Button, 4-USB interface, 5-Headphone jack, 6-Second microphone, 7-Earpiece, 8-LCD interface. Detailed Implementation

[0020] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0021] This utility model provides a handheld phone motherboard based on WIFI communication, including a board body ( Figure 1 (Not shown in the diagram) and electronic components fixed to the board. A schematic diagram of the connections for each electronic component is shown below. Figure 1 As shown, the system includes a CPU, memory connected to the CPU, a battery, a keypad module, a USB interface, a Wi-Fi & BT module, an LCD interface, a MIC1 module, a MIC2 module, an SPK module, a headphone jack, a vibrator, and a handset. The USB interface, LCD interface, MIC1 module, MIC2 module, SPK module, headphone jack, vibrator, and handset are connected to the CPU via direct plug-in or soldering methods. The battery also has an independent charging terminal. The battery supplies power to various components on the motherboard. Due to the complex wiring, ... Figure 1 The wiring between the battery and other components is not shown.

[0022] like Figure 2 As shown, the independent charging terminal 1 is used to connect to an external power source, and the battery can be powered via a spring-loaded connector. The USB port 4 can connect to an external power source and also to external devices. Therefore, the battery can be charged via the USB port or the independent charging terminal. Figure 3 As shown, headphone jack 5 uses a 3.5mm universal headphone jack for connecting wired headphones. The keypad module connects to button 3 and the power button. The Wi-Fi & BT module connects to wireless networks and external devices; in this example, the model is FGN280ASRL. LCD interface 8 (as shown...) Figure 5 (As shown) is used to connect to a monitor. The MIC1 module is... Figure 2 The first microphone 2, MIC2 module, is... Figure 3 The second microphone 6 works in conjunction with the first microphone to achieve dual-MIC noise reduction. The SPK module is a speaker, and the vibrator is used to generate vibration. Figure 4 As shown, the handset 7 is the receiver of the handheld phone. The memory includes DDR RAM and Flash, used to store information.

[0023] Through the aforementioned universal interfaces and some basic modules, users can choose suitable external devices according to their needs. The motherboard provides WIFI and BT modules, allowing users to move freely, breaking free from the fixed location limitations of traditional handsets due to power cords and network cables, thus increasing their mobility and convenience.

[0024] As an improvement, a gain amplification module is further added between the CPU and the SPK module, as shown in the circuit diagram. Figure 6 As shown. The gain amplifier module amplifies the signal. The speaker is connected to the gain amplifier module to enhance the speaker's sound quality.

[0025] Power button and key multiplexing circuit, such as Figure 7 As shown, this circuit uses a field-effect transistor (FET), two transistors, and some resistors and capacitors to achieve its function. When the board is not powered on, VCC3V3 has no voltage. When the power button is pressed, the gate of VT2 is pulled low. At this time, VCC charges capacitor C1 through resistors R1 and R2. Once the voltage reaches the turn-on threshold, VCC3V3_EN is pulled high, supplying power through the subsequent power module, powering the board on. Transistor VT1 pulls the gate of transistor VT2 low to maintain power supply. The button is then pulled high through a voltage divider formed by diode VD1, resistors R3 and R4. If the button is pressed at this time, pin GPIO2 is pulled low, which is recognized by the CPU, thus determining that a button has been pressed and implementing the normal button function. If the button is pressed for a long time, the CPU recognizes this and pulls pin GPIO1 high, discharging capacitor C1 through resistor R1, pulling VCC3V3_EN low, thus powering off the board. The above analysis shows that the power button controls the charging and discharging of the capacitor via circuitry and the CPU to power the device on and off. After powering on, it functions as a regular button, achieving the same functionality as the power button and regular button. This circuit differs from existing circuits, has a simple structure, and is suitable for low-cost, short-range wireless communication devices.

[0026] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A handheld phone motherboard based on WIFI communication, comprising a board body and electronic components fixed on the board body, characterized in that, The electronic components include a CPU and a battery connected to the CPU, a keypad module, a USB interface, a WIFI & BT module, an LCD interface, a MIC1 module, a MIC2 module, an SPK module, a headphone jack, a vibrator, an earpiece, and a memory. The battery is also connected to an independent charging terminal. The battery powers the motherboard, and the independent charging terminal charges the battery. The keypad module connects to buttons and a power button. The USB interface connects to external USB devices and charges the battery. The WIFI & BT module connects to wireless networks and external devices, including WIFI and Bluetooth communication functions. The LCD interface connects to a display. The MIC1 and MIC2 modules are microphones, the SPK module is a speaker, and the headphone jack connects to wired headphones.

2. The handheld phone motherboard based on WIFI communication according to claim 1, characterized in that, A gain amplification module is also connected between the CPU and the SPK module.

3. The handheld phone motherboard based on WIFI communication according to claim 1, characterized in that, The keypad module is connected to the key multiplexing circuit to realize the key multiplexing of the power button.

4. The handheld phone motherboard based on WIFI communication according to claim 1, characterized in that, The memory includes DDR RAM and Flash.

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