CN201699771U - Wireless office fixed phone - Google Patents

Wireless office fixed phone Download PDF

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Publication number
CN201699771U
CN201699771U CN2010202594730U CN201020259473U CN201699771U CN 201699771 U CN201699771 U CN 201699771U CN 2010202594730 U CN2010202594730 U CN 2010202594730U CN 201020259473 U CN201020259473 U CN 201020259473U CN 201699771 U CN201699771 U CN 201699771U
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China
Prior art keywords
module
pstn
circuit
voice
processing unit
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Expired - Fee Related
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CN2010202594730U
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Chinese (zh)
Inventor
孔庆佐
祖兆新
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DESAI ELECTRONIC (HUIZHOU) Ltd
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DESAI ELECTRONIC (HUIZHOU) Ltd
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Priority to CN2010202594730U priority Critical patent/CN201699771U/en
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Abstract

The utility model discloses a wireless office fixed phone, which comprises an SIM (Subscriber Identity Module), an LCD (Liquid Crystal Display) module, a keyboard module, a power module, an AF (Audio Frequency) control module, an AF channel switchover module, a voice module, a PSTN (Public Switched Telephone Network) circuit module, a CPU (Central Processing Unit) and an RF (Radio Frequency) module, wherein the CPU is connected with the SIM and the RF module; the RF module is connected with the LCD module; the CPU is connected with the RF module, while the CPU is connected with the AF control module, the keyboard module, the PSTN (Public Switched Telephone Network) circuit module and the AF channel switchover module; the AF channel switchover module is connected with the AF control module; the voice module is connected with the PSTN (Public Switched Telephone Network) circuit module, the AF control module and the RF module; and the CPU, the RF module, the LCD module and the PSTN (Public Switched Telephone Network) circuit module are respectively connected with the power module. By integrating the communication technology of the TD-SCDMA (Time Division-Synchronization Code Division Multiple Access)/GSM (Global System for Mobile Communications) and the PSTN, the utility model not only can realize the function of the fixed phone, but also the function of the TD-SCDMA/ GSM mobile phone.

Description

A kind of wireless office base
Technical field
The utility model relates to the communications field, relates in particular to the two-wire telephone set of a integrated common fixed line and TD merchant's words.
Background technology
At present, telephone set has become the telecommunication terminal product that people generally use, and almost each family has a telephone set at least.Particularly in the office space, telephone set is the communication tool of each staff's indispensability especially.Function diversity has become the trend of telephone set development, and the practicality of function is the emphasis that everybody pays close attention to all the time.
Though along with development of internet technology, communication terminal also develops to aspects such as digitlization, intellectuality, multimedias, but be limited by level of mass consumption and installation environment, in from now on suitable length in one period,, dependable performance simple with function, cheap be the market mainstream that the popular telephone set of main feature is still telephone set.Current, occurred and be applied to market based on the wireless office base of the PSTN communication technology with based on the double-card dual-standby hand-held communication terminal of gsm communication technology, but its communication is all based on a kind of communication technology, in case this communication technology breaks down, to can't realize communication fully, simultaneously, do not have significant difference, be unfavorable for that consumption selects based on the communication rate of same communication network.Along with applying of 3G technology, become new consumption emphasis based on the communicating terminal of 3G, traditional G net product will be replaced gradually.
The utility model for looking after the different consumption demand of consumer, provides a kind of novel communication mode just, guarantees under the situation that any therein communication link breaks down, still can be normally and extraneous communication.Simultaneously, owing to there are two networks of wire and wireless, the client can select comparatively cheap rate mode to dial conversation, for the client has saved a large amount of telephone expenses.On technical advantage, the TD-SCDMA network has lower radio transmitted power and higher receiving sensitivity, for communication quality provides good guarantee.
The utility model is on the basis of conventional communication techniques, has merged the application of 3G technology, and maximum magnitude ground satisfies consumer's communication need, has vast market prospect.
The utility model content
The utility model has overcome the shortcoming and defect of above-mentioned prior art, and a kind of wireless office base that has merged the TD-SCDMA/GSM communication technology and the PSTN communication technology, can realize fixed line function, TD-SCDMA/GSM function of cellular phone simultaneously is provided.
The purpose of this utility model is achieved through the following technical solutions: a kind of wireless office base comprises:
Be used to show the LCD display module of incoming information, information and display graphics user interface;
The Keysheet module that is used for input instruction, user profile;
Be used to provide the power module of power supply;
The voice module that is used for the input and output of audio frequency;
Be used to write down speech data, according to the state of the control command control voice module of central processing unit, realize the audio frequency control module of the power amplifier output of voice module;
Be used to realize basic fixed line function, comprise the PSTN circuit module of ring control, answer mode control, FSK encoding and decoding, DTMF transmission and decoding, call voice control;
Be used to store the user identification module (SIM card) of subscriber identity information;
The command information that is used for sending according to radio-frequency module is judged incoming telephone signal, user's mode of answering is carried out landline telephone and is moved the switching of discussing between words, by the conversion between radio-frequency module transmitting control commands realization PSTN keypad function and TD-SCDMA/GSM keypad function and to the LCD display module, the control of voice module, by realizing PSTN network and the internetwork switching of TD-SCDMA/GSM, by realize the state of control voice module to audio frequency control module transmitting control commands to voice-frequency channel handover module transmitting control commands, the central processing unit of the power amplifier output of voice module;
Be used to receive the TD-SCDMA/GSM incoming telephone signal, and send the command information that electrical information classification, user are answered mode to central processing unit, Keysheet module, LCD display module, voice module are carried out the radio-frequency module of corresponding operating according to the control command of central processing unit;
Be used for realizing the voice-frequency channel handover module that switches between PSTN network and TD-SCDMA/GSM network according to the control command of central processing unit;
Described central processing unit links to each other with user identification module, radio-frequency module, described radio-frequency module links to each other with the LCD module, described central processing unit links to each other with audio frequency control module, Keysheet module, PSTN circuit module, voice-frequency channel handover module with radio-frequency module simultaneously, described voice-frequency channel handover module links to each other with the audio frequency control module, described voice module links to each other with PSTN circuit module, audio frequency control module, radio-frequency module, and described central processing unit, radio-frequency module, LCD display module, PSTN circuit module link to each other with power module respectively.
For better realizing the utility model, caller ID processing module and the dialing processing module of PSTN that described central processing unit is integrated.
Described PSTN circuit module comprises:
Be used to realize that central processing unit detects the ring detecting circuit of relevant ringing pulse;
Be used to receive the DTMF information that central processing unit sends and send to DTMF transmission interface circuit on the telephone wire;
Be used to the handle circuit for answering of realizing that handle is answered or called;
Be used to realize the simulation circuit for answering answering or call when hands-free;
Be used to realize the FSK encoding and decoding interface circuit of the Code And Decode of FSK;
Be used to realize the DTMF decoding interface circuit of DTMF decoding;
Described ring detecting circuit, DTMF transmission interface circuit, handle circuit for answering, simulation circuit for answering, FSK encoding and decoding interface circuit, DTMF decoding interface circuit link to each other with central control unit respectively.
Described radio-frequency module is that built-in communication antenna is supported GSM900/1800/1900/TD-SCDMA:1880-1920MHz and 2010-2025MHz five T3G radio-frequency module frequently.
Described voice-frequency channel handover module is the bidirectional switch controller, and described bidirectional switch controller can adopt SGM3005 single-pole double throw analog signal switch.
The utility model wireless office base also comprises charged lithium cells, described charged lithium cells is built in the telephone set, described charged lithium cells charging modes can be constant voltage after the first constant current, adopts the resistance of 3.6K Ω to set 500 milliamperes charging current, and the constant voltage charge value is 4.2V.
The utility model wireless office base also comprises the ESD device that is used to protect external tapping, protection Key Circuit, and the esd protection circuit that also is used to protect external tapping, protection Key Circuit.
The utility model compared with prior art, the TD-SCDMA/GSM function of cellular phone of wired fixed line function of tradition and current trend is combined, switch and the keypad function conversion by incoming telephone signal differentiation, voice-frequency channel, solved the conflict between PSTN incoming call and TD-SCDMA/GSM incoming call, the two-wire unification, can realize that fixed line function, TD-SCDMA/GSM merchant talk about function, can satisfy different selection under the susceptible scape pattern of client, the client can select comparatively cheap rate mode to dial conversation, for the client has saved a large amount of telephone expenses; Simultaneously, owing to there are two networks of wire and wireless, even under the situation that any communication line breaks down, still can be normally and extraneous communication.
Description of drawings
Fig. 1 main circuit block diagram of the present utility model;
Network between Fig. 2 the utility model PSTN and TD-SCDMA/GSM switches and keypad function transfer principle block diagram;
The block diagram of Fig. 3 the utility model PSTN circuit module and central processing unit.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
As shown in Figure 1, a kind of wireless office base comprises:
Be used to show the LCD display module of incoming information, information and display graphics user interface;
The Keysheet module that is used for input instruction, user profile;
Be used to provide the power module of power supply;
The voice module that is used for the input and output of audio frequency;
Be used to write down speech data, according to the state of the control command control voice module of central processing unit, realize the audio frequency control module of the power amplifier output of voice module;
Be used to realize basic fixed line function, comprise the PSTN circuit module of ring control, answer mode control, FSK encoding and decoding, DTMF transmission and decoding, call voice control;
Be used to store the user identification module of subscriber identity information;
The command information that is used for sending according to radio-frequency module is judged incoming telephone signal, user's mode of answering is carried out landline telephone and is moved the switching of discussing between words, by the conversion between radio-frequency module transmitting control commands realization PSTN keypad function and TD-SCDMA/GSM keypad function and to the LCD display module, the control of voice module, by realizing PSTN network and the internetwork switching of TD-SCDMA/GSM, by realize the state of control voice module to audio frequency control module transmitting control commands to voice-frequency channel handover module transmitting control commands, the central processing unit of the power amplifier output of voice module;
Be used to receive the TD-SCDMA/GSM incoming telephone signal, and send the command information that electrical information classification, user are answered mode to central processing unit, Keysheet module, LCD display module, voice module are carried out the radio-frequency module of corresponding operating according to the control command of central processing unit;
Be used for realizing the voice-frequency channel handover module that switches between PSTN network and TD-SCDMA/GSM network according to the control command of central processing unit;
Described central processing unit links to each other with user identification module, radio-frequency module, described radio-frequency module links to each other with the LCD module, described central processing unit links to each other with audio frequency control module, Keysheet module, PSTN circuit module, voice-frequency channel handover module with radio-frequency module simultaneously, described voice-frequency channel handover module links to each other with the audio frequency control module, described voice module links to each other with PSTN circuit module, audio frequency control module, radio-frequency module, and described central processing unit, radio-frequency module, LCD display module, PSTN circuit module link to each other with power module respectively.
Caller ID processing module and the dialing processing module of PSTN that described central processing unit is integrated.
Described PSTN circuit module comprises:
Be used to realize that central processing unit detects the ring detecting circuit of relevant ringing pulse;
Be used to receive the DTMF information that central processing unit sends and send to DTMF transmission interface circuit on the telephone wire;
Be used to the handle circuit for answering of realizing that handle is answered or called;
Be used to realize the simulation circuit for answering answering or call when hands-free;
Be used to realize the FSK encoding and decoding interface circuit of the Code And Decode of FSK;
Be used to realize the DTMF decoding interface circuit of DTMF decoding;
Described ring detecting circuit, DTMF transmission interface circuit, handle circuit for answering, simulation circuit for answering, FSK encoding and decoding interface circuit, DTMF decoding interface circuit link to each other with central control unit respectively.
Described radio-frequency module is built-in communication antenna GSM900/1800/1900/TD-SCDMA:1880-1920MHz and 2010-2025MHz five T3G console module frequently.
Described voice-frequency channel handover module is the bidirectional switch controller, and present embodiment adopts SGM3005 single-pole double throw analog signal switch.
Described a kind of wireless office base also comprises ESD device and the esd protection circuit that is used to protect external tapping, protection Key Circuit.
The external DC4.6V/500mA power supply of the utility model, internal battery adopts 800mAh/3.7V lithium battery or Ni-MH battery group, and radio-frequency module adopts five frequency module T 3G schemes, and central processing unit adopts 78806 model single-chip microcomputers.
After powering on, ring is defaulted as the PSTN pattern, and voice-grade channel is defaulted as the TD-SCDMA/GSM passage, and the default conditions of voice module are to disconnect with power amplifier output, and quiet realization is that current MIC passage is transformed into PSTN or TD-SCDMA/GSM pattern.
During as caller, handle or press outgoing call by hands-free back and directly selected to breathe out or postpone after 5 seconds automatically the TD-SCDMA/GSM net by " PSTN " key PSTN net to breathe out also can be by netting exhalation by the direct TD-SCDMA/GSM of " transmission " key behind the intact outgoing call.
When called, receive the PSTN incoming information by wired fixed network, receive the TD-SCDMA/GSM incoming information by radio-frequency module, central processing unit is by detecting the signal that radio-frequency module sends over, making incoming information and answer mode judges, and cooperate with radio-frequency module, realize answering and switching of different incoming telephone signals; Central processing unit links to each other with the PSTN circuit module, handles and the dialing processing module by the caller ID of built-in PSTN, realizes that caller ID shows; Central processing unit is by detecting the job information of radio-frequency module, realizes conversion between the different keypad functions by control radio-frequency module keyboard interface.
As shown in Figure 2, the switching of PSTN audio frequency and TD-SCDMA/GSM audio frequency, adopt following scheme to realize:
1. when having only the PSTN incoming call, radio-frequency module sends handle answer mode or hands-free mode command information to central processing unit.Central processing unit judges according to the command information that receives, and sends control command and open or close corresponding voicefrequency circuit, realizes the PSTN conversation.
2. when having only the TD-SCDMA/GSM incoming call, radio-frequency module sends ringing instruction to central processing unit earlier, and central processing unit sends instructions for SGM3005 single-pole double throw analog signal switch and opens the TD-SCDMA/GSM ringing circuit, closes the PSTN ringing circuit; At this moment, the TD-SCDMA/GSM ring rings, and then, central processing unit opens or closes corresponding audio frequency control module according to the information that radio-frequency module sends, and realizes the TD-SCDMA/GSM conversation.
When 3. after PSTN sends a telegram here TD-SCDMA/GSM earlier, sending a telegram here, the PSTN ring rings earlier, central processing unit cuts out voice module and is connected with power amplifier output, central processing unit waits for that the PSTN that answers that radio-frequency module sends still is TD-SCDMA/GSM and hands-free still handle answer mode, enter corresponding modes, answering finishes restPoses (optionally connected tin of elder generation by PSTN key handle or by the hands-free pstn telephone that connects, otherwise answer TD-SCDMA/GSM).
When 4. after TD-SCDMA/GSM sends a telegram here PSTN earlier, sending a telegram here, the TD-SCDMA/GSM incoming call, radio-frequency module says the word to central processing unit, central processing unit cuts out the PSTN ring, central processing unit is opened voice module and is connected with power amplifier output, the TD-SCDMA/GSM ring rings, central processing unit detects the PSTN bell signal, number is issued radio-frequency module, central processing unit waits for that the PSTN that answers that radio-frequency module sends still is TD-SCDMA/GSM and hands-free still handle answer mode, enter corresponding modes, answering finishes restPoses (optionally connected tin of elder generation by PSTN key handle or by the hands-free pstn telephone that connects, otherwise answer TD-SCDMA/GSM).
5. when PSTN sends a telegram here in the TD-SCDMA/GSM conversation, before the TD-SCDMA/GSM conversation, central processing unit cuts out PSTN ring output, central processing unit detects the PSTN bell signal, number is issued radio-frequency module, central processing unit waits for that radio-frequency module sends, and to answer PSTN still be TD-SCDMA/GSM and be hands-free or the handle answer mode, enter corresponding modes, answering finishes restPoses (puts down handle earlier or the TD-SCDMA/GSM phone by hands-free extension, again first by PSTN key handle or by the hands-free pstn telephone that connects, otherwise answer TD-SCDMA/GSM).
6. when TD-SCDMA/GSM sends a telegram here in the PSTN conversation, before the PSTN conversation, central processing unit cuts out PSTN ring output and TD-SCDMA/GSM voice-grade channel, after radio-frequency module detects the TD-SCDMA/GSM bell signal, the notice central processing unit, central processing unit provides replys and waits for that the PSTN that answers that radio-frequency module sends still is TD-SCDMA/GSM and hands-free still handle answer mode, enter corresponding modes, answering finishes restPoses (put down handle earlier or pstn telephone by hands-free extension, first again button handle or by the hands-free TD-SCDMA/GSM that connects).
7. as PSTN when earlier incoming call and PSTN shift to an earlier date on-hook behind the incoming call TD-SCDMA/GSM, open the PSTN ring back tone earlier, after the PSTN on-hook, open the TD-SCDMA/GSM ring back tone again, at this moment, be equivalent to occur situation 2..
8. as TD-SCDMA/GSM when earlier incoming call and TD-SCDMA/GSM shift to an earlier date on-hook behind the incoming call PSTN, open the TD-SCDMA/GSM ring back tone earlier, after the TD-SCDMA/GSM on-hook, open the PSTN ring back tone again, at this moment, be equivalent to occur situation 1..
Conversion between PSTN keyboard and the TD-SCDMA/GSM keyboard, adopt following scheme to realize:
The function key of keyboard is directly received on the keyboard interface of radio-frequency module, the 3*4 numerical key by gate circuit 244 come control flows to, 244 power supplys are identical with central processing unit.Keyboard behind the power-up initializing is defaulted as the TD-SCDMA/GSM keyboard mode, and the 3*4 keyboard is received the keyboard interface of radio-frequency module; When central processing unit detects radio-frequency module and does not work, central processing unit is realized the keyboard mode conversion by the level that changes the corresponding keyboard control port, promptly TD-SCDMA/GSM keyboard mode control port RF_KEY_CON is put high level, PSTN Keyboard Control port PSTN_KEY_CON puts low level, and numerical key forwards the PSTN pattern to.
The present embodiment telephone set also comprises charged lithium cells or Ni-MH battery group, and described charged lithium cells or Ni-MH battery group are built in the telephone set.Described charged lithium cells or Ni-MH battery group charging modes are constant voltage after the first constant current; the size of charging current by the charging current of module settings 220mA (in order to protect the charger overcurrent protection; charge closing in communication process); the constant voltage charge value is 4.2V; charging current stops charging during smaller or equal to 10mA, and the charged state inside modules detects.
By rechargeable battery powered, also do not have electricity as rechargeable battery when having electricity, central processing unit sends control information to handle, and handle is realized off-hook, and handle is answered wired incoming call or called by the PSTN network, and function key is invalid, and incoming call has ring back tone, but liquid crystal does not have demonstration.When using the PSTN net answering or calling, battery and civil power do not have still can continue under the situation to answer, but liquid crystal does not have demonstration.
The foregoing description is the utility model preferred implementation; but execution mode of the present utility model is not limited by the examples; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection range of the present utility model.

Claims (8)

1. wireless office base comprises:
Be used to show the LCD display module of incoming information, information and display graphics user interface;
The Keysheet module that is used for input instruction, user profile;
Be used to provide the power module of power supply;
The voice module that is used for the input and output of audio frequency;
Be used to write down speech data, according to the state of the control command control voice module of central processing unit, realize the audio frequency control module of the power amplifier output of voice module;
Be used to realize basic fixed line function, comprise the PSTN circuit module of ring control, answer mode control, FSK encoding and decoding, DTMF transmission and decoding, call voice control;
It is characterized in that, also comprise:
Be used to store the user identification module of subscriber identity information;
The command information that is used for sending according to radio-frequency module is judged incoming telephone signal, user's mode of answering is carried out landline telephone and is moved the switching of discussing between words, by the conversion between radio-frequency module transmitting control commands realization PSTN keypad function and TD-SCDMA/GSM keypad function and to the LCD display module, the control of voice module, by realizing PSTN network and the internetwork switching of TD-SCDMA/GSM, by realize the state of control voice module to audio frequency control module transmitting control commands to voice-frequency channel handover module transmitting control commands, the central processing unit of the power amplifier output of voice module;
Be used to receive the TD-SCDMA/GSM incoming telephone signal, and send the command information that electrical information classification, user are answered mode to central processing unit, Keysheet module, LCD display module, voice module are carried out the radio-frequency module of corresponding operating according to the control command of central processing unit;
Be used for realizing the voice-frequency channel handover module that switches between PSTN network and TD-SCDMA/GSM network according to the control command of central processing unit;
Described central processing unit links to each other with user identification module, radio-frequency module, described radio-frequency module links to each other with the LCD module, described central processing unit links to each other with audio frequency control module, Keysheet module, PSTN circuit module, voice-frequency channel handover module with radio-frequency module simultaneously, described voice-frequency channel handover module links to each other with the audio frequency control module, described voice module links to each other with PSTN circuit module, audio frequency control module, radio-frequency module, and described central processing unit, radio-frequency module, LCD display module, PSTN circuit module link to each other with power module respectively.
2. a kind of wireless office base according to claim 1 is characterized in that: caller ID processing module and the dialing processing module of PSTN that described central processing unit is integrated.
3. a kind of wireless office base according to claim 1 is characterized in that: described PSTN circuit module comprises:
Be used to realize that central processing unit detects the ring detecting circuit of relevant ringing pulse;
Be used to receive the DTMF information that central processing unit sends and send to DTMF transmission interface circuit on the telephone wire;
Be used to the handle circuit for answering of realizing that handle is answered or called;
Be used to realize the simulation circuit for answering answering or call when hands-free;
Be used to realize the FSK encoding and decoding interface circuit of the Code And Decode of FSK;
Be used to realize the DTMF decoding interface circuit of DTMF decoding;
Described ring detecting circuit, DTMF transmission interface circuit, handle circuit for answering, simulation circuit for answering, FSK encoding and decoding interface circuit, DTMF decoding interface circuit link to each other with central control unit respectively.
4. a kind of wireless office base according to claim 1 is characterized in that: described radio-frequency module is that GSM900/1800/1900/TD-SCDMA:1880-1920MHz and 2010-2025MHz five T3G radio-frequency module are frequently supported in built-in communication antenna support.
5. a kind of wireless office base according to claim 1 is characterized in that: described voice-frequency channel handover module is the bidirectional switch controller.
6. a kind of wireless office base according to claim 5 is characterized in that: described bidirectional switch controller adopts SGM3005 single-pole double throw analog signal switch.
7. a kind of wireless office base according to claim 1, it is characterized in that: this wireless office base also comprises charged lithium cells, described charged lithium cells is built in the telephone set.
8. a kind of wireless office base according to claim 1 is characterized in that: this wireless office base also comprises the ESD device that is used to protect external tapping, protection Key Circuit, and the esd protection circuit that is used to protect external tapping, protection Key Circuit.
CN2010202594730U 2010-07-15 2010-07-15 Wireless office fixed phone Expired - Fee Related CN201699771U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104754673A (en) * 2015-03-24 2015-07-01 惠州市新思为电子科技有限公司 Method and device for dual-mode communication of GSM (global system for mobile communication) and PSTN (public switched telephone network)
CN105430145A (en) * 2015-12-09 2016-03-23 山东卡尔电气股份有限公司 Intelligent telephone set fusing 4G, PSTN and VOIP and communication method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104754673A (en) * 2015-03-24 2015-07-01 惠州市新思为电子科技有限公司 Method and device for dual-mode communication of GSM (global system for mobile communication) and PSTN (public switched telephone network)
CN105430145A (en) * 2015-12-09 2016-03-23 山东卡尔电气股份有限公司 Intelligent telephone set fusing 4G, PSTN and VOIP and communication method

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