Wireless fixed telephone module
A fixed telephone and wireless technology, applied in the direction of telephone communication, telephone structure, electrical components, etc., can solve the problems of inability to use fixed wired telephones, slow work speed, and large investment.
Inactive Publication Date: 2009-05-06
HISENSE +1
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- Application Information
AI Technical Summary
Problems solved by technology
[0002] At present, the penetration rate of fixed wired telephone is high, the technology is mature and stable, and it is easy to use. However, fixed wired telephone has some disadvantages that are inconvenient to use. The work speed is slow. For users, when the office or residence is moved and the address is changed, it is necessary to go to the telecommunications bureau to handle the transfer and change the number, which delays and affects working hours
Moreover, the fixed wired telephone cannot be applied in some inconvenient places or areas such as suburbs, lakes, islands, rural areas and mobile carriers such as automobiles and ships that are not reached by wiring or ground lines.
Fixed wired telephone based on voice service, lack of communication of data information
Method used
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Embodiment 1
[0014] Embodiment 1, a kind of wireless fixed telephone module based on CDMA1X system, as figure 1 ~ Figure 2. It includes a radio frequency receiving and transmitting circuit 1, a central controller 2 and its memory 3, wherein the radio frequency receiving and transmitting circuit 1 is connected to the central controller 2, the central controller 2 is connected to the power management circuit 4, an audio signal interface, and a serial communication interface , a button interface, an LCD display interface, a user identification interface and a power supply circuit interface form a module user interface 5, which is connected to an external circuit through a board-to-board connector.
[0015] The central controller 2 adopts the MSM6000 chip, the memory 3 adopts an integrated circuit with FLASH+PSRAM structure, and the power management circuit 4 includes a charging management circuit, which can charge the backup battery and realize the dual power supply of the mains and the batte...
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The invention is a kind of wireless telephone model, which includes a radio frequency transmitting and receiving model, a user incrimination model, a LCD displaying circuit, the radio frequency receiving and transmitting circuit are connected with the centre controller, the centre controller is connected to the voice channel circuit, the user incrimination model circuit and the LCD displaying circuit. The audio frequency signal interface, the series communication interface, the buttons interface, the LCD displaying interface, the user incrimination interface and the power circuit interface form the user interfaces, which is connected to the outer circuit through the board-to-board connectors, there connects a keyboard, LCD displaying device, outer power, UIM card, microphone and earphone on the user interfaces of the wireless telephone model, forms the wireless fixed telephone, it has characters of wireless access, flexible point and needn't the special wire.
Description
technical field [0001] The invention belongs to the technical field of mobile communication, and more specifically relates to a wireless fixed telephone device based on a CDMA system. Background technique [0002] At present, the penetration rate of fixed wired telephone is high, the technology is mature and stable, and it is easy to use. However, fixed wired telephone has some disadvantages that are inconvenient to use. The work speed is slow. For the user, when the office or residence is moved to change the address, it is necessary to go to the telecommunications bureau to handle the transfer and change the number, which delays and affects working hours. And the fixed wired telephone can't be used on some inconvenient wiring or ground lines not reaching places or areas such as suburbs, lakes, islands, rural areas and mobile carriers such as automobiles and ships. Fixed wired telephones are based on voice services and lack communication of data information. Contents of t...
Claims
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IPC IPC(8): H04M1/725H04M1/02H04B1/38H04M1/18H04M1/72403
Inventor 于强杨新涛展学君于德毅刘相双
Owner HISENSE