CN2919752Y - 3G mobile communication terminal - Google Patents

Abstract

A 3G mobile communication terminal consists of a micro processor (1), a serial interface (2), a MP3 module (3), a camera module (4), a SDRAM memory (5), a power management module (6), a speaker module (7), a microphone (8), a telephone receiver (9), a FLASH memory (10), a SIM card module (11), a keyboard (2) and a display module (13). The 3G mobile communication terminal is the third generation of mobile telephone terminal based on the TD-SCDMA protocol, which is provided with powerful data processing ability as well as multi-media processing ability. The 3G mobile communication terminal is adaptive to the communication network via the RF Module, that is, the 3G mobile communication terminal can switch automatically according to the network. The data processed by the CPU is stored in the data storage area. After receiving orders from the customer, a plurality of corresponding operations are carried out to provide the customer with high-speed multimedia services as well as internet surfing services. The utility model can widely be applied in the 3G mobile communication network.

Description

A kind of 3G communication terminal

Technical field

The utility model belongs to the mobile communication technology field, particularly a kind of digital 3G communication terminal (being commonly called as mobile phone).

Background technology

3G is the abbreviation of English 3rd Generation, refers to the 3G (Third Generation) Moblie technology.Relatively first generation simulation standard mobile phone (1G) and digital mobile phones (2G) such as second generation GSM, TDMA, third generation mobile phone are meant the third generation mobile communication system that multimedia communications such as radio communication and Internet are combined generally speaking.This system can handle multiple media formats such as image, music, video flowing, and multiple information services such as comprising web page browsing, videoconference, ecommerce is provided; Support different data transmission baudss, that is to say in the environment of indoor, outdoor and driving and can support 2Mbps (Mbytes/per second) at least respectively, the transmission speed of 384kbps (kilobytes/per second) and 144kbps.

In recent years, global mobile communication developed rapidly, and the diffusion rate of mobile phones of developed country has reached more than 70%, have the area in addition near 100%.In China by the end of in by the end of July, 2003, mobile subscriber's quantity has reached 2.4 hundred million, and still has good growth momentum.Because frequency resource nervous and to the needs of more business, the 2G network can not be satisfied the demand, and 3G network is the inexorable trend of development.3G compares technically with 2G, and 3G adapts to multimedia service and internet browsing more, and higher speed, packet switching and asymmetric traffic are arranged.Therefore, the communication terminal that is applied in the 3G network is also just stronger to the user's data service ability, thereby better market demand prospect is also just arranged.

Summary of the invention

The purpose of this utility model provides a kind of mobile phone terminal that is applied under the 3G network.This terminal is applicable to the multiple network pattern, and multimedia service and internet browsing service at a high speed is provided, and outside the general utility functions of having realized second generation mobile phone terminal, also realizes the video communication, the video conference function.

The utility model comprises microprocessor, serial line interface, MP3 module, camera module, SDRAM memory, power management module, loudspeaker module, Mike, telephone receiver, FLASH memory, SIM card module, keyboard and display module; Wherein serial line interface is with U2TXD, the MP_TXD and MP3 module RXD, the corresponding connection of TXD input of microprocessor; The CHRG output of power management module is connected with the ADCIN1 of microprocessor; The SDRAM memory is connected with DMA, the DMD bus of microprocessor; FLASH memory and microprocessor) the EMA bus be connected; Camera module links to each other with microprocessor by sharing E MA bus with Mike; Loudspeaker module links to each other with the universaling I/O port U2RTSN of microprocessor; Mike also links to each other with the U2DTRN end of microprocessor; Telephone receiver links to each other with U1CTSN, the U1CSN3 end of microprocessor; The SIM card module links to each other with the SIM card dedicated bus that microprocessor provides; Keyboard is the 5*6 keyboard matrix, and the output of keyboard matrix connects the KEYIN and the KEYOUT end of microprocessor respectively, and display module is connected with the UIDTRN end of microprocessor.

Wherein, be solidified with the software program of special disposal MP3 data file in the MP3 module.Also be solidified with mobile phone operating system and Application Software Program in the FLASH memory chip.

The utility model is based on the third generation cell phone terminal of TD-SCDMA agreement.It has very strong data processing function and multimedia processing capacity.It automaticallyes switch according to different networks by RF Module module adaptive communications network environment.Data are stored in the user data conservation zone after handling through CPU, wait to receive user's operational order after, operate accordingly, provide multimedia service and internet browsing service at a high speed to the user.

The utility model is a 3G mobile, but its compatible 2.5G simultaneously that is to say under the condition that does not possess the 3G network environment, still can bring into play the ability of each side preferably.This mobile phone is provided with the function of current main-stream such as the TFT color screen, chord bell sound, digital vedio recording, MMS of 65536 looks.Aspect multimedia application, can take static images and dynamic video, record and phonetic dialing, and support the broadcast of video and audio documents.The Dram space that possesses 28MB also provides infrared, blue tooth interface simultaneously, and supports USB to connect, and market prospects are boundless.

Description of drawings

Accompanying drawing 1 is the functional block diagram of the utility model embodiment

Accompanying drawing 2 is the logic theory block diagram of the utility model embodiment

Accompanying drawing 3 is the CPU schematic diagram of the utility model embodiment

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is specifically described:

With reference to the accompanying drawings 1,2, the utility model embodiment comprises microprocessor (1), serial line interface (2), MP3 module (3), camera module (4), SDRAM memory (5), power management module (6), loudspeaker module (7), Mike (8), telephone receiver (9), FLASH memory (10), SIM card module (11), keyboard (12) and display module (13); Wherein serial line interface (2) is with U2TXD, the MP_TXD and MP3 module (3) RXD, the corresponding connection of TXD input of microprocessor (1); The CHRG output of power management module (6) is connected with the ADCIN1 of microprocessor (1); SDRAM memory (5) is connected with DMA, the DMD bus of microprocessor (1); FLASH memory (10) is connected with the EMA bus of microprocessor (1); Camera module (4) links to each other with microprocessor (1) by sharing E MA bus with Mike (8); Loudspeaker module (7) links to each other with the universaling I/O port U2RTSN of microprocessor (1); Mike (8) also links to each other with the U2DTRN end of microprocessor (1); Telephone receiver (9) links to each other with U1CTSN, the U1CSN3 end of microprocessor; SIM card module (11) links to each other with the SIM card dedicated bus that microprocessor (1) provides; Keyboard (12) is the 5*6 keyboard matrix, and the output of keyboard matrix connects the KEYIN and the KEYOUT end of microprocessor (1) respectively, and display module (13) is connected with the UIDTRN end of microprocessor (1).

Wherein, be solidified with the software program of special disposal MP3 data file in the MP3 module (3).Also be solidified with mobile phone operating system and Application Software Program in FLASH memory (10) chip.

With reference to the accompanying drawings 3, in the utility model embodiment, camera module (4) is controlled by the control chip of LCM modular belt by sharing the FLASH bus, this control chip is not only being controlled the demonstration of LCD, but also has controlled the operation of camera module (4) and vibrator.Need only the instruction of writing this chip identification by the address that is mapped to it, both can control the demonstration of LCD, also can control camera module (4) and take pictures and preview.SDRAM memory (5) all is to be connected by the memory bus that microprocessor (1) carries with FLASH memory (10), as long as carry out read or write at assigned address, just can operate FLASH memory (10) and SDRAM memory (5).Power management module (6) is realized charge function by single chip, and microprocessor (1) receives the signal that is connected on this chip and will control inner LDO.MP3 module (3) is the C51 of embedded MP3 decoding layer, this chip has two kinds of patterns, both can be used as the broadcast that main control chip is controlled mp3 file separately, also can be used as secondary control, promptly only receive instruction by serial line interface (2), and instruct to operate accordingly and play MP3 by analyzing this, generally, this chip is for power-down mode, the received signal pin of serial line interface (2) links to each other with the external interrupt pin, so when serial line interface (2) will be waken up when data are arranged, to reach purpose of power saving; This chip can custom programming, and inside has the FLASHROM of 64k to come stored program, and this program can download to chip internal in the ISP mode by serial line interface (2).This microprocessor also provides the matrix keyboard of 5*6, and supports the power down arousal function, chip can be waken up from power-down mode.

The components and parts model that the utility model embodiment is adopted is as shown in the table:

The components and parts title	Model	Encapsulation
			Three terminal regulator	AZ1117-3.3V，SOT223	SOT223
Low pressure reduction power regulator	LP29854.7V	SOT-25
			Reset circuit	IMP811S 2.93V，SOT-143，140MS	SOT-143
EEPROM	AT24C01 SO-8	SO-8
			EEPROM	24C512 SO-8	SO-8
Comparator	LM393(NS)	SO-8
			232 interfaces	MAX232 SO16，5V	SO16
DRAM	K4S6432H-TC60	TSOP54
			FLASH	SST39VF1601 28M*16，TSOP48	TSOP48
CPU	SC8800	QFP208
			The MP3 chip	AT89C51SND2C	PLCC44
Two-way inhibition diode	TPA200 1.5A RAD0.2	RAD0.2
			Relay	HRS1H-S，3VDC	HRS1H-S
The TFT color screen
			Paster processing and assembling	Processing charges (each 100)

Function that the utility model embodiment has reached and target:

1, this terminal is a 3G mobile, but its compatible 2.5G simultaneously that is to say under the condition that does not possess the 3G network environment, still can bring into play the ability of each side preferably.

2, possess 65536 looks TFT color screen, chord bell sound, possess digital camera function, support the function of current main-stream such as MMS.

3, aspect multimedia application, can take static images and dynamic video, record and phonetic dialing, and support the broadcast of video and audio documents.

4, the Dram space that possesses 28MB also provides infrared, blue tooth interface simultaneously, and supports USB to connect.

Concrete technical indicator:

Network formats	TD-SCDMA/GSM/GPRS
		The main screen parameter	Color screen, 65536 looks, TFT, 176 * 220 pixels, 1.9 cun
Battery	Lithium battery (BST-37)
		Stand-by time	400 hours
Input method	The T9 Chinese character coding input method, the T9 English input method
		Data function	Support bluetooth, support infrared ray, support data wire, support the Memory-Stick-DUO card, USB, the support capacity is up to the MS Pro Duo of 2GB, will give the Memory Stick Duo of a 64MB at random as an addition
Multimedia	MP3 supports, video playback, FM radio reception, picture editor
		Memory size	28M

Claims (1)

1. a 3G communication terminal is characterized in that: comprise microprocessor (1), serial line interface (2), MP3 module (3), camera module (4), SDRAM memory (5), power management module (6), loudspeaker module (7), Mike (8), telephone receiver (9), FLASH memory (10), SIM card module (11), keyboard (12) and display module (13); Wherein serial line interface (2) is with U2TXD, the MP_TXD and MP3 module (3) RXD, the corresponding connection of TXD input of microprocessor (1); The CHRG output of power management module (6) is connected with the ADCIN1 of microprocessor (1); SDRAM memory (5) is connected with DMA, the DMD bus of microprocessor (1); FLASH memory (10) is connected with the EMA bus of microprocessor (1); Camera module (4) links to each other with microprocessor (1) by sharing E MA bus with Mike (8); Loudspeaker module (7) links to each other with the universaling I/O port U2RTSN of microprocessor (1); Mike (8) also links to each other with the U2DTRN end of microprocessor (1); Telephone receiver (9) links to each other with U1CTSN, the U1CSN3 end of microprocessor; SIM card module (11) links to each other with the SIM card dedicated bus that microprocessor (1) provides; Keyboard (12) is the 5*6 keyboard matrix, and the output of keyboard matrix connects the KEYIN and the KEYOUT end of microprocessor (1) respectively, and display module (13) is connected with the UIDTRN end of microprocessor (1).

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