CN201383832Y

CN201383832Y - Mobile phone with digital cordless telephone function

Info

Publication number: CN201383832Y
Application number: CN200920070713.XU
Authority: CN
Inventors: 张涛; 李峰
Original assignee: Shanghai Longcheer Technology Co Ltd
Current assignee: Shanghai Longcheer Technology Co Ltd
Priority date: 2009-04-20
Filing date: 2009-04-20
Publication date: 2010-01-13
Anticipated expiration: 2019-04-20

Abstract

The utility model relates to a mobile phone with a digital cordless telephone function; a baseband chip of the mobile phone is used as a main control chip and realizes communication and control with a digital cordless telephone system chip by an SPI interface, the baseband chip switches a mike and a telephone receiver by an analog switch to realize the normal conversation functions of the mobile phone and the digital cordless telephone which are in a normal, hands-free, earphone, blueteeth states respectively. The mobile phone can be used as the digital cordless telephone to answer fixed network call, and interconnection conversation among mobile phones can be realized by the digital cordless telephone function, the traditional mobile phone is integrated with the digital cordless telephone, the telephone charge of final user is saved, the indoor conversation quality (households or offices) is ensured, and interconnection conversation among mobile phones is free within a small range.

Description

A kind of mobile phone with digital cordless phone function

Technical field

The utility model relates to a kind of multi-functional mobile phone, relates in particular to a kind of mobile phone with digital cordless phone function, can make mobile phone answer fixed network incoming call as digital cordless phone, simultaneously also can be by the conversation that interconnects of digital cord-less function between the mobile phone.

Background technology

Mobile phone and landline telephone are most important two kinds of communication media of communication in the actual life.Along with development of times, the popularity rate of mobile phone is more and more higher, almost is one one of staff now, from single conversation and SMS to music, video, many-sided intelligent direction development such as Digital Video Broadcasting Handheld, function is more and more perfect.But the communication cost of mobile phone still is higher with respect to landline telephone, and human body is had certain hazards of electromagnetic radiation.

On the other hand, the digital cordless phone technology is very ripe now, digital cordless phone has had application widely in office and family, digital cordless phone has advantages such as speech quality is good, penetration power strong, maintain secrecy than traditional analog cordless telephone, and the communication between the digital cordless phone composite aircraft need not the user and pays extra-pay.Certainly the communication distance between the two is shorter, has the limitation of certain scope of activities, and it is so convenient to be not so good as the mobile phone use.

Summary of the invention

The purpose of this utility model is to solve the deficiency that existing mobile phone and digital cordless phone exist in communication, a kind of mobile phone with digital cordless phone function is provided.

The technical scheme that realizes the present utility model purpose is as follows:

A kind of mobile phone with digital cordless phone function, comprise mobile phone and digital cordless phone, it is characterized in that: with mobile phone base band chip as main control chip, by communication and the control of SPI interface realization with the digital cordless telephone system chip, baseband chip switches Mike and receiver by analog switch, realizes that mobile phone and digital cordless phone are respectively at the call function of normal, hands-free, earphone, bluetooth state.Can make mobile phone answer fixed network incoming call as digital cordless phone, simultaneously also can be between the mobile phone by the conversation that interconnects of digital cord-less function.

In mobile phone, the digital cordless phone function is realized by single chip solution with the digital cordless telephone system chip application.

Described digital cordless phone frequency range comprises: the handset chip receives in ISM band 900MHz emission and 5.8GHz; The base chip receives and the 5.8GHz emission at ISM band 900MHz.

Digital cordless phone function of the present utility model realizes by single chip solution, saves cost, improved reliability, saves end user's investment and telephone expenses, reduce the influence of electromagnetic radiation to human body, increased the flexibility that the user uses mobile phone.

Description of drawings

Fig. 1 is the utility model system block diagram.

Schematic diagram when Fig. 2 is the fixed network incoming call.

Fig. 3 is a mobile phone by the fixed network schematic diagram of breathing out.

Fig. 4 is a mobile phone intercommunication schematic diagram.

Embodiment

Below in conjunction with accompanying drawing, further specify the utility model and how to realize:

Embodiment

Mobile phone base band chip as shown in Figure 1 is as main control chip, by communication and the control of SPI interface realization with the cordless telephone chip, baseband chip switches MIC and RECEIVER by analog switch, to realize that mobile phone and cordless telephone are respectively in the normal talking function of states such as normal, hands-free, earphone, bluetooth.

The realization of digital cordless phone function:

When the user buys mobile phone and uses for the first time, need mobile phone and base are mated, matching code can be saved, and all can discern automatically mutually later on so at every turn, need not to mate again, also can mate again certainly.

When the mobile network sends a telegram here, handle according to traditional mobile phone flow process, when landline telephone is sent a telegram here, as shown in Figure 2, the packet that base will contain caller ID sends to the mobile phone end, and the sign indicating number of calling after the digital cord-less chip of mobile phone end will be resolved sends baseband chip to and shows and ring that the mobile phone end can be selected to answer or rejection, and corresponding state information fed back to base by the digital cord-less chip, do corresponding processing by it.

Can select during with the mobile phone Outgoing Call from the mobile network still is that landline telephone is transferred to, when selecting the mobile network, handle according to traditional mobile phone flow process, when selecting landline telephone, as shown in Figure 3, the packet that the mobile phone end will contain number sends to base, after base receives packet, automatically dial and cry mobile phone defeated number, and every 100ms state information is fed back to the mobile phone end, mobile phone is handled accordingly according to state information.

The realization of mobile phone intercommunication function, as shown in Figure 4:

Mobile phone realizes that the prerequisite of intercommunication function is that two mobile phones with digital cord-less function must successfully mate connection with same base.During intercommunication, call direction base sends request, base can detect residing state called party's this moment after receiving request, and give calling party with this state feedback, handled accordingly at different states by calling party, if when the called party is in idle condition, the two can directly set up communication, when if the called party is in GSM talking state or digital cordless phone talking state, calling party can keep up to we or the other side is hung up calling or the other side switches to this calling.

Claims

1. mobile phone with digital cordless phone function, comprise mobile phone and digital cordless phone, it is characterized in that: with mobile phone base band chip as main control chip, by communication and the control of SPI interface realization with the digital cordless telephone system chip, baseband chip switches Mike and receiver by analog switch, realizes that mobile phone and digital cordless phone are respectively at the call function of normal, hands-free, earphone, bluetooth state.

2. according to right 1 described a kind of mobile phone with digital cordless phone function, it is characterized in that: in mobile phone, the digital cordless phone function is realized by single chip solution with the digital cordless telephone system chip application.

3. according to right 1 described a kind of mobile phone with digital cordless phone function, it is characterized in that: described digital cordless phone frequency range comprises: the handset chip receives in ISM band 900MHz emission and 5.8GHz; The base chip receives and the 5.8GHz emission at ISM band 900MHz.