CN100380829C

CN100380829C - Single antenna GSM/PHS dual mode mobile telephone

Info

Publication number: CN100380829C
Application number: CNB2005100233816A
Authority: CN
Inventors: 赖振兴; 樊晓龙; 张红斌; 刘宁
Original assignee: Inventec Appliances Nanjing Corp
Current assignee: Inventec Appliances Nanjing Corp
Priority date: 2005-01-17
Filing date: 2005-01-17
Publication date: 2008-04-09
Anticipated expiration: 2025-01-17
Also published as: CN1808922A

Abstract

The present invention relates to a GSM and PHS double-mode cell phone adopting a single antenna, which is only provided with the single antenna. A GSM module and a PHS module are respectively connected with the single antenna through an antenna module which is connected with a central processing unit so as to receive control signals transmitted by the central processing unit; connecting states that the antenna module connected with the GSM module or the PHS module are switched, which enables the double-mode cell phone enter a single frequency operation mode of a GSM or a PHS according to selectness so as to realize the detecting and the sending or receiving of the signals at the frequency range of 900 MHz or 1900 MHz under the single frequency operation mode of the GSM or the PHS. In addition, the antenna module can selectively switch an operation mode to the frequency range of 900 MHz or 1900 MHz according to a preset sequence and the signal strength at different frequency ranges of the GSM or the PHS, which enables the double-mode cell phone select a suitable operation mode. By using the single antenna to make a phone call or to send or receive signals, the double-mode cell phone not only has good user affinity, but also effectively reduces the part space and the production cost of the double-mode cell phone. Thus, featheriness and shortness appearance of the designed double-mode cell phone can still be maintained.

Description

A kind of GSM and PHS dual-mode handset that adopts single antenna

Technical field

The present invention is relevant for a kind of mobile phone that has GSM and PHS two-frequency operation pattern concurrently, especially finger is a kind of can be under GSM and PHS two-frequency operation pattern, see through single antenna, detecting and transmitting-receiving 900MHz or 1900M frequency band signals, the mode of operation that makes the user be complied with being fit to is called or the dual-mode handset of receiving and transmitting signal.

Background technology

In recent years, a kind of personal handyphone system (Personal Handy-phone System that stems from second generation digital radio telephone system, hereinafter to be referred as PHS), in wireless telecommunications market, be subjected to great attention, the PHS mobile phone mainly is used in the power mobile phone in mobile place at a slow speed, not only can use in market place builet below the ground and subway, and mobile phone is light and handy, very anti-extended telephone conversation, but also high-speed transfer signal.Although this technology is not advanced, very practical, the market that suitable consuming capacity is lower, general speech, the main advantage of PHS mobile phone is as follows:

(1) relevant device is simple, and cost is low, is low than the conventional fixed telephone system not only, and is also low than the cellular mobile communication system.

(2) average every user's business income is evident as height than the conventional fixed phone.

(3) can make full use of the idle internet resource that has fixed network now,, not only reduce construction cost, also accelerate the speed of networking to promote the value of fixed network.

(4) the mobile phone rate is lower, and has certain mobility, and the utmost point is welcome by the consumer of general metropolitan area.

Based on aforementioned advantages, life and be operated in the people of metropolitan area now, for taking into account simultaneously fast and mobile at a slow speed place, or the communication quality of low coverage and long distance and cost, generally all have a GSM (Global System forMobile Communication is hereinafter to be referred as GSM) mobile phone and a PHS mobile phone, yet, be demand and the selection of satisfying varying environment, the user must carry two kinds of mobile phones, and this measure causes great inconvenience to the user.In view of this, many mobile phones manufacture and design the dealer, be GSM mobile handset and the PHS mobile phone that is operated in different communication network system with aforementioned, integrate, release " bimodulus " machine of many moneys hot topic respectively,, make the user only need carry a dual-mode handset that has GSM and PHS communication function concurrently to satisfy the demand of vast consumption market, can see through GSM and PHS communication network system, realize the conversation of two kinds of different working modes respectively.

Dual-mode handset can satisfy the serious hope that the user reduces average telephone expenses on the one hand, also can remedy the limited deficiency of the present PHS network coverage on the other hand, in addition, dual-mode handset allows the people expectant most, can make the user have two doors number, respectively with GSM and the standby of PHS communication mode, wherein the GSM communication mode is the frequency range that is operated in 900MHz (or 1800MHz), the PHS communication mode then is operated in the 1900MHz frequency range, do not disturb mutually each other, and can switch by button, possess the advantage of " machine is wandered through the world for No. two ", add that call rate is cheap, the dealer who releases dual-mode handset certainly will be able to make its consumption group, be expanded to the customers that do not use the PHS mobile phone originally, so each mobile phone dealer is all very positive to the exploitation of dual-mode handset, in the hope of seizing the customers of these new markets smoothly.

At present, the designed dual-mode handset of each mobile phone dealer all adopts the structure of double antenna, and meaning i.e. this communication mode circuit of disposing own antenna respectively and being correlated with respectively, in order to receiving and transmitting signal.Yet, after GSM mobile handset and PHS mobile phone are merged into one,, still can keep original GSM mobile handset or the compact appearance of PHS mobile phone if desire makes the dual-mode handset of designed production, certainly will cause part and circuit space, the situation of wretched insufficiency takes place.Die, how to simplify the structure and the spare part of these dual-mode handsets,, promote product competitiveness, and keep original GSM mobile handset or the compact appearance of PHS mobile phone, promptly become the important topic that each mobile phone dealer needs to be resolved hurrily effectively to reduce production costs.

Summary of the invention

Because the dual-mode handset that aforementioned each mobile phone dealer is produced, all adopt the double-antenna structure design, cause these antenna and interlock circuit to make little being difficult for of volume desire of the dual-mode handset of being produced, difficulty can be kept original compact shortcoming, the inventor is according to being engaged in the technical experience that mobile phone is made for many years, and the professional knowledge of being accumulated, at the problems referred to above, development and Design goes out a kind of GSM and PHS dual-mode handset that adopts single antenna of the present invention.

One object of the present invention is to provide a kind of GSM and PHS dual-mode handset that adopts single antenna, this dual-mode handset only is provided with single antenna, this antenna sees through an antenna modules, be connected with a GSM module and a PHS module respectively, this antenna modules also is connected with a CPU, to receive the control signal that transmits by this CPU, switch itself and the state that respectively is connected between this module, make this dual-mode handset enter GSM or PHS single frequency operation pattern according to selection, be implemented under GSM or the PHS single frequency operation pattern, detect and receive and dispatch the signal of 900MHz or 1900M frequency range.

Another object of the present invention is, this antenna modules still can be complied with predefined order, signal power according to GSM or PHS different frequency range, selection switches to 900M or 1900MHz band limits with mode of operation, the mode of operation that makes this dual-mode handset be fit to, utilize this single antenna to call or receiving and transmitting signal, not only make this dual-mode handset possess better user's compatibility, and can dwindle the part space and the production cost of this dual-mode handset effectively, make the designed dual-mode handset that goes out, still can keep compact appearance.

Another purpose of the present invention is that this antenna modules comprises the first double-pole double-throw electronic switch, one shared contact of this first double-pole double-throw electronic switch is connected with this antenna, other two point then is connected with a contact of a duplexer and the second double-pole double-throw electronic switch respectively, one shared contact of this second double-pole double-throw electronic switch is connected with the signal transmitting and receiving end of this GSM module, another contact on it then is connected with a contact of this duplexer, another contact of this duplexer then is connected with the signal transmitting and receiving end of this PHS module, this first double-pole double-throw electronic switch system is controlled by the switching signal that this CPU transmits, and when carrying out change action, but this second double-pole double-throw electronic switch of interlock, switch synchronously, be subjected to the control of this switching signal SW when this dual-mode handset, when being switched into GSM single mode operation state, this first double-pole double-throw electronic switch and second double-pole double-throw electronic switch system are switched to making this GSM module can directly see through this antenna receiving-sending signal, fully need be through the state of this duplexer.

Another purpose of the present invention is that this dual-mode handset is subjected to the control of this switching signal SW; when being switched into PHS/GSM bimodulus, GSM/PHS bimodulus or PHS single mode operation state; this the first double-pole double-throw electronic switch and the second double-pole double-throw electronic switch will be switched to; make this GSM module or PHS module see through the state of this antenna receiving-sending signal respectively via this duplexer.

Another purpose of the present invention is at this duplexer for the signal of flowing through therebetween, can be according to the power of GSM or PHS different frequency range signal, carry out filtering, according to predefined order, again according to the signal power, selection makes this dual-mode handset be operated in 900M or 1900MHz band limits, makes the user call or receiving and transmitting signal according to the selected suitable mode of operation of this duplexer.

For ease of to shape of the present invention, structure, design principle and effect thereof, further understanding and understanding are arranged, enumerate some embodiment now, and conjunction with figs., be described in detail as follows:

Description of drawings

Fig. 1 is a system architecture schematic diagram of the present invention;

Fig. 2 is the circuit framework schematic diagram of the antenna modules of a preferred embodiment of the present invention;

Fig. 3 is in order to the handling process schematic diagram of switching working mode in this preferred embodiment.

Embodiment

The present invention is a kind of GSM and PHS dual-mode handset that adopts single antenna, consult shown in Figure 1, this dual-mode handset 10 only is provided with single antenna 201, can make this dual-mode handset according to selecting people GSM or PHS single frequency operation pattern, be implemented under GSM or the PHS single frequency operation pattern, detect and receive and dispatch the signal of 900MHz or 1900M frequency range, or make this dual-mode handset according to predefined order, again according to the power of GSM or PHS different frequency range signal, selection switches to 900M or 1900MHz band limits with mode of operation, make this dual-mode handset must utilize this single antenna,, call or receiving and transmitting signal with the mode of operation that is fit to.

In a preferred embodiment of the present invention, to consult again shown in 1 figure, this dual-mode handset 10 comprises a CPU 11, this CPU 11 makes this dual-mode handset 10 be able to normal operation in order to control each correlated parts and circuit in this dual-mode handset 10; One memory cell 12, this memory cell 12 can be storage stack at least, is connected with this CPU 11, so that memory space to be provided, to store and makes required software of these dual-mode handset 10 normal operations and computing numerical value; One audio synthesis unit 13 is connected with this CPU 11, with indication according to this CPU 11, and synthetic and generation digital audio; One display unit 15, this display unit 15 can be a LCDs, is connected with this CPU 11, in order to numeral, literal or the picture signal that shows that 11 desires of this CPU show; One input unit 16, this input unit 16 can be a key groups, is connected with this CPU 11, for user's input characters or digital signal; One power-supply unit 17, this power-supply unit 17 can be a battery, is connected with this CPU 11, in order to each correlated parts and the required power supply of circuit normal operation in this dual-mode handset 10 to be provided; One GSM module (module) 18, this GSM module 18 is connected with this CPU 11, can be under the GSM pattern in order to make this dual-mode handset 10, receiving and transmitting signal; One PHS module 19, this PHS module 19 is connected with this CPU 11, can be under the PHS pattern in order to make this dual-mode handset 10, receiving and transmitting signal.

In this embodiment, consult shown in Figure 1 again, this GSM module 18 and PHS module 19 are connected with a microphone 101, loudspeaker 102 and an earphone circuit 103 respectively in addition, to make this two

module

18 and 19 must see through this microphone 101, receive near-end caller's voice, and through these loudspeaker 102 and earphone circuit 103, this GSM module 18 or PHS module 19 received far-end caller speech play are come out, this GSM module 18 still can be connected with a SIM card slot 181, to see through this slot 181, read the wherein interior user's identification code that stores of a SIM card.Need the special person of carrying, be in this dual-mode handset 10, consult shown in Figure 1 again, only be provided with single antenna 201, this antenna 201 is to see through an antenna modules 20, be connected with this GSM module 18 and PHS module 19 respectively, this antenna modules 20 also is connected with this CPU 11, to receive the control signal that is transmitted by this CPU 11.In this embodiment, consult shown in Figure 2, this antenna modules 20 comprises the first double-pole double-throw electronic switch 21, one shared contact 211 of this first double-pole double-throw electronic switch 21 is connected with this antenna 201, other two

point

212 and 213 are connected with a contact 222 on a duplexer 23 and the second double-pole double-throw electronic switch 22 respectively, shared contact 221 on this second double-pole double-throw electronic switch 22 is connected with the signal transmitting and receiving end of this GSM module 18,223 of another contacts on it are connected with a contact of this duplexer 23, and another contact of this duplexer 23 then is connected with the signal transmitting and receiving end of this PHS module 19.In this embodiment, what need pay special attention to is that this first double-pole double-throw electronic switch 21 is controlled by the switching signal SW that this CPU 11 transmits, and when carrying out change action, but 22 (as shown in phantom in Figure 2) of this second double-pole double-throw electronic switch of interlock switch synchronously.

Above-described this antenna modules 20, it only is a specific embodiment of the present invention, the present invention is when actual applying, be not limited thereto, anyly be familiar with present technique field person according to theory of the present invention, other antenna modules of design, if can make a bimodulus mobile phone according to selecting to enter GSM or PHS single frequency operation pattern, by single antenna, be implemented under GSM or the PHS single frequency operation pattern, detect and receive and dispatch the signal of 900MHz or 1900M frequency range, or make the dual mode sequential of this dual-mode handset, according to the power of GSM or PHS different frequency range signal according to predefined PHS/GSM or GSM/PHS, this dual-mode handset is switched to suitable mode of operation, to utilize this single antenna, call or the receiving and transmitting signal person, all should belong to the present invention in this alleged antenna modules.

So, be subjected to the control of this switching signal SW when this dual-mode handset 10, when being switched into GSM single mode state, this the first double-pole double-throw electronic switch 21 and the second double-pole double-throw electronic switch 22 be switched to, make the state of this antenna 201, the first double-pole double-throw electronic switch 21, the second double-pole double-throw electronic switch 22 and GSM module 18 forming circuit conducting in regular turn, make this GSM module 18 directly to see through these antenna 201 receiving and transmitting signals, need not pass through this duplexer 23 fully.Be subjected to the control of this switching signal SW when this dual-mode handset 10; be switched into the PHS/GSM bimodulus; when GSM/PHS bimodulus or PHS single mode state; this the first double-pole double-throw electronic switch 21 and the second double-pole double-throw electronic switch 22 will be switched to; essential this duplexer 23 that sees through; make this antenna 201; the first double-pole double-throw electronic switch 21; this duplexer 23; the state of the second double-pole double-throw electronic switch 22 and GSM module 18 forming circuit conducting in regular turn; or make this antenna 201; the first double-pole double-throw electronic switch 21; the state of this duplexer 23 and PHS module 19 forming circuit conducting in regular turn; make this GSM module 18 or PHS module 19 to see through these antenna 201 receiving and transmitting signals respectively via this duplexer 23.In this embodiment, what still pay special attention to is that this duplexer 23 has the signal to flowing through therebetween, carry out the effect of filtering, wherein flow to the signal of this GSM module 18, can only be by the band limits of 900MHz, the signal in the 1900MHz band limits then conductively-closed falls, flow to this PHS module 19 signals, then only by the band limits of 1900MHz, as for the signal in the 900MHz band limits, then conductively-closed is fallen; This duplexer 23 also can be according to the dual mode sequential of predefined PHS/GSM or GSM/PHS, signal power according to GSM or PHS different frequency range, selection switches to 900M or 1900MHz band limits with mode of operation, the mode of operation that makes this dual-mode handset be fit to utilizes this single antenna to call or receiving and transmitting signal.

In this embodiment; this CPU 11 is according to the following step; consult shown in Figure 3; make this dual-mode handset 10 be controlled under GSM single mode, PHS/GSM bimodulus, GSM/PHS bimodulus or PHS single mode operation state, make this GSM module 18 or PHS module 19 can utilize this single antenna 201 receiving and transmitting signals:

(30) read the user and see through the mode of operation selection signal that this input unit 16 is imported;

(31) do you judge that selected mode of operation is a GSM single frequency operation pattern? if, promptly continue step (32), otherwise, step (33) entered;

(32) send one and switch signal SW to this first double-pole double-throw electronic switch 21, make this two

switch

21 and 22 be switched to, make the state of this antenna 201, the first double-pole double-throw electronic switch 21, the second double-pole double-throw electronic switch 22 and GSM module 18 forming circuit conducting in regular turn, make this GSM module 18 not need fully via this duplexer 23, directly see through these antenna 201 receiving and transmitting signals, make its 900MHz that is operated in GSM (or 1800MHz) band limits; Then, continue step (38);

(33) do you judge that selected mode of operation is a PHS single frequency operation pattern? if, promptly continue step (34), otherwise, step (35) entered;

(34) send one and switch signal SW to this first double-pole double-throw electronic switch 21, make this two

switch

21 and 22 be switched to, essential this duplexer 23 that sees through, make the state of this antenna 201, the first double-pole double-throw electronic switch 21, this duplexer 23 and PHS module 19 forming circuit conducting in regular turn, make that this PHS module 19 must be via this duplexer 23, see through these antenna 201 receiving and transmitting signals, make it be operated in the 1900MHz band limits of PHS; Then, continue step (38);

(35) do you judge that selected mode of operation is a PHS/GSM two-frequency operation pattern? if, promptly enter step (37), otherwise, step (36) continued;

(36) send one and switch signal SW to this first double-pole double-throw electronic switch 21, make this two

switch

21 and 22 be switched to, essential this duplexer 23 that sees through, make this antenna 201 respectively with the state of GSM module 18 or the 19 forming circuit conductings of PHS module, again by the setting order of this duplexer 23 according to GSM/PHS, according to the signal power of different frequency range, selection switches to suitable mode of operation with this dual-mode handset; Then, continue step (38);

(37) send one and switch signal SW to this first double-pole double-throw electronic switch 21, make this two

switch

21 and 22 be switched to, essential this duplexer 23 that sees through, make this antenna 201 respectively with the state of GSM module 18 or the 19 forming circuit conductings of PHS module, again by the setting order of this duplexer 23 according to PHS/GSM, according to the signal power of different frequency range, selection switches to suitable mode of operation with this dual-mode handset;

(38) after configuring related hardware and mode of operation, promptly, start relevant application program according to stored software in this memory cell 12, make this dual-mode handset 10 enter holding state.

According to the above as can be known, the present invention not only can see through this input unit 16, this dual-mode handset 10 is switched to required GSM or PHS single frequency operation pattern, make this GSM module 18 or PHS module 19 can utilize this single antenna 201 receiving and transmitting signals, still can be according to predefined PHS/GSM or GSM/PHS order, according to the signal power of different frequency range, selection switches to suitable mode of operation with this dual-mode handset 10, utilizes this single antenna 201 to call or receiving and transmitting signal.Because, in this dual-mode handset 10 of the present invention, only need single antenna module 20 and antenna 201, so can effectively dwindle the installing space of part in this dual-mode handset 10, and reduce its production cost, make the designed dual-mode handset of producing, can keep original GSM mobile handset or the compact appearance of PHS mobile phone, and possess better user's compatibility.

The above only is the best specific embodiment of the present invention, and structural feature of the present invention is not limited thereto, and anyly is familiar with present technique field person in field of the present invention, can think easily and variation or modification, all can be encompassed in the claim of following this case.

Claims

1. a GSM and PHS dual-mode handset that adopts single antenna, this dual-mode handset comprises at least:

One CPU in order to control each correlated parts and circuit in this dual-mode handset, makes it be able to normal operation;

One GSM module is connected with this CPU, making this dual-mode handset under the GSM pattern, and receiving and transmitting signal;

One PHS module is connected with this CPU, making this dual-mode handset under the PHS pattern, and receiving and transmitting signal;

Single antenna;

One antenna modules, be connected with this CPU, GSM module, PHS module and single antenna respectively, with according to the control signal that transmits by this CPU, switch the state that it is connected with this module respectively, make this dual-mode handset detect and to receive and dispatch the signal of corresponding frequency band according to selecting to enter GSM or PHS single frequency operation pattern;

Wherein, this antenna modules comprises:

The first double-pole double-throw electronic switch, a shared contact of this first double-pole double-throw electronic switch is connected with this antenna, and this first double-pole double-throw electronic switch system is controlled by the switching signal that this CPU transmits, and carries out change action;

The second double-pole double-throw electronic switch, one shared contact of this second double-pole double-throw electronic switch is connected with the signal transmitting and receiving end of this GSM module, the one contact is connected with a contact of this first double-pole double-throw electronic switch, and with this first double-pole double-throw electronic switch interlock, with when this first double-pole double-throw electronic switch carries out change action, can switch synchronously;

One duplexer, this duplexer respectively with this first double-pole double-throw electronic switch and the second double-pole double-throw electronic switch on another contact and the signal transmitting and receiving end of this PHS module be connected.

2. dual-mode handset as claimed in claim 1, it is characterized in that, this antenna modules also can be according to predefined PHS/GSM or GSM/PHS order, power according to GSM or PHS different frequency range signal, selection switches to corresponding mode of operation with this dual-mode handset, utilizes this single antenna to call or receiving and transmitting signal.

3. dual-mode handset as claimed in claim 1, it is characterized in that, be subjected to the control of this switching signal when this dual-mode handset, when being switched into GSM single mode state, this first double-pole double-throw electronic switch and second double-pole double-throw electronic switch system be switched to, make the state of this antenna, the first double-pole double-throw electronic switch, the second double-pole double-throw electronic switch and the forming circuit conducting in regular turn of GSM module, make this GSM module directly see through this antenna receiving-sending signal.

4. dual-mode handset as claimed in claim 1, it is characterized in that, be subjected to the control of this switching signal when this dual-mode handset, when being switched into PHS single mode state, this the first double-pole double-throw electronic switch and the second double-pole double-throw electronic switch will be switched to, essential this duplexer that sees through, and make the state of this antenna, the first double-pole double-throw electronic switch, this duplexer and the forming circuit conducting in regular turn of PHS module, make this PHS module via this duplexer, see through this antenna receiving-sending signal.

5. dual-mode handset as claimed in claim 1 is characterized in that, this duplexer can be to the signal of flowing through therebetween, carry out filtering, wherein flow to the signal of this GSM module and PHS module, can only pass through its corresponding band limits, the signal of other its corresponding frequency band scope of non-genus, then conductively-closed is fallen.

6. dual-mode handset as claimed in claim 1, it is characterized in that, this duplexer can be according to PHS/GSM that sets or the dual mode sequential of GSM/PHS, signal power according to different frequency range, selection switches to corresponding band limits with mode of operation, the mode of operation that makes this dual-mode handset be fit to utilizes this single antenna to call or receiving and transmitting signal.