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Digital group mobile phone

A digital trunking and mobile phone technology, applied in the field of internal control circuits, can solve the problems of being unable to replace dedicated trunking mobile communications, achieve low cost, wide application prospects, and meet the needs of use

Inactive Publication Date: 2007-10-10
HISENSE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the domestic public mobile communication network is developing rapidly at present, due to the constraints of the technical system, it is difficult for the public network to meet the needs of users when there are high requirements for the timeliness of communication and security scheduling functions, so it cannot replace the dedicated trunking mobile network. status of communication

Method used

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  • Digital group mobile phone
  • Digital group mobile phone
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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] In Fig. 1, the digital trunking mobile phone mainly consists of three parts: a user interface board (MMI board), a host circuit module, and some external accessories. Among them, the host circuit module is the core module of the whole system. This module realizes the main functions of the digital trunking mobile phone, and is mainly composed of two parts: a baseband circuit 102 and a radio frequency circuit 101 . The user interface board is a module for the digital trunking mobile phone to interact with the user. The user's operations are almost all realized through this module, mainly including LCD display, keyboard board, function buttons, internal speakers (treble / bass) and microphones MIC, backlight indicator and vibration motor, etc. The external accessories of mobile phones mainly include auxiliary parts such as batterie...

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Abstract

This invention discloses a digital cluster mobile phone, including the mainframe circuit module, the user's surface circuit module and the phone accessories. There into, the mainframe circuit module is composed of the baseband circuit and the radio-frequency circuit. In the baseband circuit, it adopts the controlling circuit with the processing chip OMAP5910 that is double-core embedded, and cooperates with the frequency decoder, the frequency amplifier and the baseband processing chip to compose the frequency processing circuit to finish encoding and decoding, amplifying of frequency signals and the conversion of I / Q signals of the baseband and realize the digital processing of the sound signals.

Description

technical field [0001] The invention relates to a mobile phone circuit in the field of mobile communication, in particular to an internal control circuit of a digital trunking mobile phone. Background technique [0002] In terms of its application fields, mobile communication can be divided into two categories, namely, dedicated mobile communication systems and public mobile communication systems. Private mobile communication systems include dispatching and command systems, vehicle position reporting systems, etc.; , Wireless paging systems, cordless phones, etc. The target user group of public mobile communication is the individual user as the unit, mainly based on "one-to-one" duplex telephone communication, the call object is random, and the users in the system are equal and do not distinguish priority. Public mobile communication is one of the means for people to facilitate daily communication and improve the quality of life. Although it also has a certain role in promo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40H04M1/00
Inventor 魏崇毓吕廷昌王瑞生蒋建春李勇焦国栋先树华
Owner HISENSE
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