CN2335328Y - Frequency changeable full duplex wireless telephone set - Google Patents

Abstract

The utility model relates to a frequency changeable full duplex wireless telephone set. The utility model is composed of the connection of a base telephone and a plurality of frequency changing and full duplex wireless waves through receiving and sending radio waves or is composed of the connection of a telephone and other telephones through receiving and sending radio waves; the telephone is composed of the connections of an antenna, a duplexer, an amplifier arranged at front, a demodulator, a phase-locked loop, an audio processor, a receiver, a transmitting circuit, a microphone, a micro controller, a buzzer, a display module, and the parts are connected by each input signal line and each output signal line. More than two telephones can be one device automatically without a base telephone by utilizing the utility model, and the utility model is not influenced by city electricity. The signals among the telephones are flexible and convenient and are free from interference; the capacity of the utility model is large and the cost is low.

Description

Change the channel full duplex cordless telephone device

The utility model is a kind of channel full duplex cordless telephone device that changes, and belongs to the narrow-band FM radiotechnics, particularly adopts the group's cordless telephone device and the mobile communications device of artificial antenna power technology.

Can not intercom mutually between domestic its mobile phone of existing cordless telephone device, maybe can only carry out half-duplex operation, and this half-duplex operation need be transferred through base and realized.In addition, when a mobile phone in when work, other mobile phone must quit work.The mobile communications device of domestic existing employing artificial antenna power technology comprises Extension arrangement, cellular devices and talkback unit, and the communication between its mobile phone all is to finish by the switching of base station, though intercom does not have the base station, has only two mobile phones.Said apparatus has a common ground technically, that is: adopting channel spacing is the narrow-band FM radiotechnics of 25KHz or 12.5KHz, its any channel all is made up of a pair of frequency in FH and two frequency ranges of FL, if the transmit frequency band of mobile phone is FH, the reception frequency range is FL, then the transmit frequency band of base or base station is FH, and the reception frequency range is FL.Therefore, the frequency range that transmits and receives of mobile phone and base or base station is fixed, but can be manually or select different channels automatically; Because the frequency range that transmits and receives of mobile phone is fixed, thus information can not be received mutually between two mobile phones, so leave base or just full-duplex communication mutually of base station.There is following shortcoming in such device: (1) can not communicate by letter between the mobile phone, thereby the scope of application of mobile phone is restricted during away from base or base station; (2) for many mobile phones being communicated by letter simultaneously must increase the wireless channel in base or the base station, thereby device becomes very complicated and expensive; When (3) communicating by letter between two mobile phones in the same device, must take base or base station crowded wire message way and wireless channel, thereby installed capacity is restricted; (4) during mains failure, because base or base station cisco unity malfunction, so can't communicate by letter between the mobile phone, this user to many civil power instabilities or power shortage area makes troubles.

The purpose of this utility model is exactly in order to overcome and when solving existing analog wireless communication device existence away from base or base station, can not communicate by letter between the mobile phone, the mobile phone scope of application is restricted, or device is very complicated and expensive, and installed capacity is restricted, civil power instability particularly, power shortage, base or base station during mains failure, can't operate as normal, mobile phone can't be communicated by letter, to shortcomings such as the user makes troubles and problem, research and design is a kind of easy to install, cost is low, the mobile phone scope of application is wide, but capacity improves greatly need not base or base station mobile handset between just can realize the full-duplex communication random access discrete address change the channel full duplex cordless telephone device.

The utility model is realized by following structure technology scheme: it is the narrow-band FM radiotechnics of 25KHz that this device adopts channel spacing, working frequency range is that Chinese home cordless phone frequency range is the 45/48MHz frequency range, ten channels that begin from 45.250/48.250MHz.This device is interconnected to constitute by transmitting and receiving radio wave by a base and the following channel full duplex mobile phone that changes of multi-section, as shown in Figure 1.Its interconnected relationship is: base is electrically connected with local telephone mutually by telephone wire; Base be connected by transmitting and receiving the on-air radio electric wave between the mobile phone arbitrarily; Changing the channel full duplex mobile phone and can need not to dispose base or base station and have a device of one's own more than two ones; Be connected by transmitting and receiving the on-air radio electric wave between mobile phone and other mobile phone.Changing channel full duplex realization of Communication method is: adopting channel spacing is the narrow-band FM technology of 25KHz, arbitrary mobile phone in the device, its transmit frequency band (being uplink band) and reception frequency range (being band downlink) can be exchanged, if mobile phone is being kept marquis's state or mobile phone and base, mobile phone and outside line (being local telephone) talking state, or when called mobile phone and mobile phone communication state, its transmit frequency band is FH, the reception frequency range is FL, then when mobile phone is called out other mobile phone as caller, the caller mobile phone receives phase-locked loop by microcontroller control, the emission phase-locked loop, duplexer able to programme will be received and dispatched working frequency range and exchange, be that original reception frequency range FL becomes present transmit frequency band, transmit frequency band FH originally becomes present reception frequency range, and the transmitting-receiving working frequency range of called mobile phone is constant, therefore the reception frequency range of caller mobile phone is exactly the transmit frequency band of called mobile phone, the transmit frequency band of caller mobile phone is exactly the reception frequency range of called mobile phone, the transmitting-receiving frequency range of caller mobile phone and called mobile phone is corresponding mutually like this, thereby realizes full-duplex communication.This full-duplex communication technology is called " changing channel full duplex (FCD) technology " again.Change the channel full duplex cordless telephone device and constitute, as shown in Figure 1 by base or base station and multi-section mobile phone.Base here or base station are not switching centers, but the interface of this device correspondence with foreign country.If all mobile phones of this device all do not need correspondence with foreign country, then device need not to dispose base or base station, many mobile phones are by identical device password, identical radio band, identical signaling format, identical Control Software constitutes a device, during the handset call mobile phone, need only the caller mobile phone dials called mobile phone and number gets final product.Change the mobile phone circuit of channel full duplex cordless telephone device and form block diagram as shown in Figure 2, it is electrically connected mutually and is constituted by antenna 1, duplexer able to programme 2, receiving preamplifier 3, FM demodulator 4, reception phase-locked loop 5, reception audio process 6, receiver 7, radiating circuit 8, emission phase-locked loop 9, transmitting audio frequency processor 10, transmitter 11, microcontroller 12, buzzer 13, keyboard 14, EEPROM15, LCD MODULE 16, and its interconnected relationship is: antenna 1 is electrically connected mutually by rf signal line and duplexer able to programme 2; Duplexer 2 able to programme receives line by radiofrequency signal and receiving preamplifier 3 is electrically connected mutually: receiving preamplifier 3 is electrically connected mutually by amplifier output signal line and FM demodulator 4; Receiving phase-locked loop 5 is electrically connected mutually by control signal wire and FM demodulator 4; FM demodulator 4 is electrically connected mutually by audio signal wire and reception audio process 6; Receiving audio process 6 is electrically connected mutually by audio signal wire and receiver 7; Transmitter 11 is electrically connected mutually by the audio signal wire and the transmitting audio frequency processor 10 of its output; Transmitting audio frequency processor 10 is electrically connected mutually by audio signal wire and radiating circuit 8; Emission phase-locked loop 9 is electrically connected mutually by control signal wire and radiating circuit 8; Radiating circuit 8 is electrically connected mutually by emission of radio frequency signals line and duplexer able to programme 2; Microcontroller 12 is electrically connected with radiating circuit 8 and duplexer able to programme 2 respectively mutually by control signal wire; Microcontroller 12 by data signal line and control signal wire and FM demodulator 4, receive phase-locked loop 5, receive audio process 6, emission phase-locked loop 9, transmitting audio frequency processor 10 be electrically connected mutually; Microcontroller 12 is electrically connected mutually by keyboard detection line and keyboard 14; Microcontroller 12 sends line and prompt tone holding wire and buzzer 13 by bell signal and is electrically connected mutually; Microcontroller 12 is electrically connected with EEPROM15 and LCD MODULE 16 respectively mutually by serial data line.In the above-mentioned block diagram 4,5,6,9,10 can adopt separate module or comprise monolithic integrated circuit with upper module, in order to reduce volume, improves rate of finished products and reliability, and the utility model adopts monolithic integrated circuit.

The operation principle of changing the channel full duplex mobile phone is: the voice signal that transmitter 11 is sent is through 10 amplifications of transmitting audio frequency processor, compression, amplitude limit, scramble, form audio modulation signal and deliver to the modulation input of radiating circuit, radiating circuit is launched control and the control of microcontroller 12 and the modulation of audio modulation signal of phase-locked loop 9, the radio-frequency carrier of voice signal or communication signaling has been carried in generation, radio-frequency carrier adds to antenna 1 through duplexer 2 able to programme, by antenna 1 radio-frequency carrier is transmitted in the air and goes.The radio-frequency carrier that the base of being received by antenna 1 or other mobile phone are sent is delivered to through duplexer 2 able to programme and is sent to FM demodulator 4 after receiving preamplifier 3 amplifies, 4 pairs of radio-frequency carriers of FM demodulator carry out the double conversion demodulation, audio signal after the output demodulation, this audio signal one tunnel is delivered to microcontroller 12 as communication signaling, and another road is given receiver 7 and sounded after receiving audio process 6 descramblings, expansion, amplification.The exchange of transmitting-receiving frequency range is to finish by the control of microcontroller 12; When mobile phone and base or when outside line establishes a communications link or mobile phone establishes a communications link as called mobile phone and other mobile phone, microcontroller 12 control emission phase-locked loops 9 and radiating circuit 8 make it produce the radio-frequency carrier of FH frequency range, control receive encircle mutually 5 and FM demodulator 4 make it be operated in the FL frequency range, and control that FL frequency range radio-frequency carrier that duplexer 2 able to programme receives line 1 then can only enter receiving preamplifier 3 and the radio-frequency carrier that can not enter emission FH frequency range can enter antenna 1 undampedly and can not enter receiving preamplifier 3, day circuit 8; When mobile phone during as other mobile phone of caller handset call, microcontroller 12 control emission phase-locked loops 9 and radiating circuit 8 make it produce the radio-frequency carrier of FL frequency range, control receives phase-locked loop 5 and FM demodulator 4 makes it be operated in the FH frequency range, and control radio-frequency carrier that duplexer 2 able to programme makes the FL frequency range can enter antenna 1 and can not enter receiving preamplifier 3 undampedly, the FH frequency range radio-frequency carrier that antenna 1 receives then can only enter receiving preamplifier 3 and can not enter radiating circuit 8.Because the transmit frequency band of caller mobile phone is FL, the reception frequency range is FH, and the transmit frequency band of called mobile phone is FH, and the reception frequency range is FL, so the caller mobile phone is corresponding mutually with the transmitting-receiving frequency range of called mobile phone, so can carry out full-duplex communication.The effect of buzzer 13 is to send ringing tone or various prompt tone under the control of microcontroller 12.EEPROM15 is used for data such as storing apparatus identification code and mobile phone numbering, and the effect of keyboard is that the instruction with the cellphone subscriber sends microcontroller 12 to, and LCD MODULE 16 is used for showing information such as dialed number.Contact between mobile phone and base or other mobile phone realizes by communication signaling.The form of communication signaling and agreement are by the software set of microcontroller 12.Microcontroller 12 is responsible for coordinating the work of each several part circuit, and its software program flow chart is seen Fig. 4.Changing the difference on the principle square frame of channel full duplex mobile phone and conventional mobile phone is: change the channel full duplex mobile phone and adopted duplexer 2 able to programme, it adds the radio frequency electric switch by the common double multiplexer and forms, thereby can realize receiving and dispatching the exchange of frequency range, and its transmitting-receiving frequency range that can isolate and pass through of the duplexer in the conventional mobile phone is fixed.Changing the difference on circuit performance of channel full duplex mobile phone and conventional mobile phone is: conventional mobile phone is because the sending and receiving frequency range is to fix, so the bandwidth of sending and receiving circuit radio frequency part only need covering system intrinsic some channels get final product, if have only a channel, then bandwidth only needs 25KHz to get final product, and the bandwidth of changing the sending and receiving circuit radio frequency part of channel full duplex mobile phone should cover FH, two frequency ranges of FL are so bandwidth is FH-FL+0.025 ^*N (MHz), wherein N is a channel number, for Chinese family expenses 45/48MHz cordless telephone frequency range, bandwidth is 3.250MHz.

The realization principle of changing the channel full duplex cordless telephone device is: the mobile phone in the device receives frequency range under the proper communication condition be the 45MHz frequency range, and transmit frequency band is the 48MHz frequency range; When the handset call mobile phone, the frequency range of accepting of caller mobile phone just becomes the 48MHz frequency range by the 45MHz frequency range, and transmit frequency band becomes 45MHz by the 48MHz frequency range; The sending and receiving radio band of base is changeless, promptly receives frequency range and is always the 48MHz frequency range, and transmit frequency band is always the 45KHz frequency range; Every function of device realizes it being to finish by the Control Software in mobile phone and the base microcontroller, and shown in Fig. 4 (mobile phone Control Software programming flowchart) and Fig. 5 (base Control Software programming flowchart): base, mobile phone all are in the marquis's state of keeping at ordinary times; During External Call, ringing signal is arranged on the telephone wire and detected, so base self ring is simultaneously to mobile phone emission ring signaling by base; Mobile phone is received own ring after the ring signaling, and all mobile phones are all the same; If the mobile phone off-hook is arranged, then mobile phone sends the off-hook signaling to base during the ring, and base receives that the off-hook signaling of mobile phone then stops ring, stops paying out the ring signaling, and connects mobile phone and outside line, and at this moment, other mobile phone off-hook is invalid; If base handle elder generation off-hook during the ring, then base stops ring and stops paying out the ring signaling and connect base handle and outside line, and at this moment, the mobile phone off-hook is invalid; During the handset call outside line, send out the off-hook signaling to base earlier, immediately mobile phone and outside line are connected after base is received, at this moment, other mobile phone can not be called out outside line again; During the handset call mobile phone, the caller mobile phone will be received and dispatched frequency range earlier and exchange, and send out call signaling to called mobile phone then, called mobile phone is received ring behind the call signaling, send out the off-hook signaling to the caller mobile phone behind the called mobile phone off-hook, the caller mobile phone is then stopped paying out call signaling after receiving the off-hook signaling, enters talking state.

Change channel full duplex cordless telephone device base circuit and form block diagram as shown in Figure 3, it is by antenna 17, duplexer 18, receiving preamplifier 19, FM demodulator 20, receive phase-locked loop 21, receive audio process 22, radiating circuit 23, emission phase-locked loop 24, transmitting audio frequency processor 25, LCD MODULE 26, keyboard 28, EEPRON32, loud speaker 33, microcontroller 29, ringing circuit 34, switching network 30, telephony interface network 36, handle 27, handle circuit 31, hands-free microphone 35 is electrically connected formation mutually, and its interconnected relationship is: antenna 17 is electrically connected mutually by rf signal line and duplexer 18; Duplexer 18 is electrically connected mutually by rf signal line and receiving preamplifier 19; Receiving preamplifier 19 is electrically connected mutually by amplifier output signal line and FM demodulator 20; Receiving phase-locked loop 21 is electrically connected mutually by control line and FM demodulator 20; FM demodulator 20 is electrically connected mutually by demodulator output audio signal line and reception audio process 22; Receiving audio process 22 is electrically connected mutually by voice signal line and switching network 30; Switching network 30 is electrically connected mutually by voice signal line and handle circuit 3 or telephony interface network 36; Handle circuit 31 is electrically connected mutually by voice signal line and handle 27; Telephony interface network 36 is electrically connected mutually by voice signal line and local network; Handle circuit 31 or telephony interface network 36 are electrically connected mutually by the voice signal line and the switching network 30 of its output; Switching network 30 is electrically connected mutually by voice signal line and transmitting audio frequency processor 25; Transmitting audio frequency processor 25 is electrically connected mutually by its audio signal output line and radiating circuit 23; Emission phase-locked loop 24 is electrically connected mutually by control signal wire and radiating circuit 23; Radiating circuit 23 is connected with duplexer 18 mutual gas devices by the radiofrequency signal output line; Microcontroller 29 by data wire and control line and FM demodulator 20, receive phase-locked loop 21, receive audio process 22, transmitting audio frequency processor 25 is electrically connected mutually, and be electrically connected mutually by keyboard detection line and keyboard 28, be electrically connected mutually by ringing-current detection line and ringing circuit 34, be electrically connected mutually by serial data line and EEPROM32 and LCD MODULE 26; In the above-mentioned block diagram, FM demodulator 20, receive phase-locked loop 21, receive audio process 22, transmitting audio frequency processor 25 can be realized by a monolithic integrated circuit, be electrically connected mutually by three data lines between it and the microcontroller 29; Handle 27 is made of a transmitter and a receiver, and they send line by audio signal respectively and audio signal receives line and handle circuit 31 is electrically connected mutually.The operation principle of base is: deliver to switching network 30 after the voice signal line that local telephone comes is amplified by telephony interface network 36 and exchange to handle circuit 31 and deliver to handle 27 again, or exchange to transmitting audio frequency processor 25 through its amplification, compression, amplitude limit, scramble, become audio modulation signal and be sent to radiating circuit 23, radiating circuit 23 is launched the control of phase-locked loop 24 and microcontroller 29 and the modulation of audio modulation signal produces the radio-frequency carrier that carries voice signal or communication signaling, radio-frequency carrier adds to antenna 17 through duplexer 18, is transmitted in the air by antenna 17 and goes.The radio-frequency carrier that the mobile phone of being received by antenna 17 is sent is delivered to receiving preamplifier 19 by duplexer 18, after amplifying, be sent to FM demodulator 20, FM demodulator 20 is received the control of phase-locked loop 21 radio-frequency carrier is carried out the double conversion demodulation, audio signal one tunnel after the output demodulation is delivered to microcontroller 29 as communication signaling, another road is through descrambling, expansion, deliver to switching network 30 after the amplification, under the control of microcontroller 29, switching network 30 exchanges to handle circuit 31 with the voice signal that demodulation recovers, deliver to handle 27 again, or exchange to telephony interface network 36, deliver on the local telephone by telephony interface network 36, and eliminate noise.By the speech that the transmitter in the handle 27 is sent, deliver to switching network 30 through handle circuit 31, under the control of microcontroller 29, perhaps exchange to transmitting audio frequency processor 25, perhaps exchange to telephony interface network 36.When local telephone came bell, the ringing signal of 25Hz/90v drove ringing circuit 34 and send ringing tone to loud speaker, gives microcontroller 29 output ringing-current detection signals simultaneously, and microcontroller 29 detects behind the ringing-current to be delivered to the ring signaling radiating circuit 23 and be transmitted in the air and go.The Control Software flow process of microcontroller 29 as shown in Figure 5.

Change channel full duplex cordless telephone device mobile phone circuit schematic diagram such as Fig. 6～shown in Figure 9, among the figure, microcontroller 12 is by single-chip microcomputer IC ₃And resistance R ₃₂, R ₃₃, R ₃₈～R ₄₁Connect and compose jointly, duplexer 2 able to programme is by diode D ₁～D ₄, inductance L ₂～L ₄, resistance R ₁, filter F ₁Constitute, receiving preamplifier 3 is by field effect transistor T ₄, resistance R ₈, R ₉, capacitor C ₁₄～C ₁₇, high-frequency tuning transformer L ₇And inductance L ₈Connect and compose jointly, FM demodulator 4, reception phase-locked loop 5, reception audio process 6, emission phase-locked loop 9, transmitting audio frequency processor 10 are jointly by integrated circuit (IC) I and peripheral cell capacitor C thereof ₂₂～C ₅₃, resistance R ₁₈～R ₃₁, transformer L ₁₀, L ₁₁, inductance L ₁₂, crystal oscillator G ₁, filter F ₂, F ₃Connect and compose jointly, radiating circuit 8 is by triode T ₁～T ₃, inductance L ₁, L ₅, L ₆, L ₉, capacitor C ₂～C ₁₂, C ₁₈～C ₂₁, resistance R ₂～R ₇, R ₁₀～R ₁₇Connect and compose jointly, EEPROM15 is by IC ₂Capacitor C ₅₄, resistance R ₃₄, R ₃₅Connect and compose jointly, LCD MODULE 16 is by IC ₄And peripheral cell capacitor C ₆₀～C ₆₃, light-emitting diode D ₈Connect and compose jointly.Change channel full duplex cordless telephone system base circuit theory diagrams such as Figure 10～shown in Figure 14, among the figure: microcontroller 29 is by single-chip microcomputer IC ₈With resistance R ₈₂～R ₉₈, capacitor C ₁₂₀～C ₁₂₆, crystal oscillator G ₄, voltage stabilizing didoe D ₁₃Connect and compose jointly, duplexer 18 is by filter F ₄Constitute, receiving preamplifier 19 is by field effect transistor T ₆, resistance R ₄₆～R ₄₈, capacitor C ₆₅～C ₆₈, high-frequency tuning transformer L ₁₄And inductance L ₁₃Connect and compose jointly, FM demodulator 20, reception phase-locked loop 21, reception audio process 22, emission phase-locked loop 24, transmitting audio frequency processor 25 are jointly by integrated circuit (IC) ₆And peripheral cell capacitor C ₈₉～C ₁₁₈, resistance R ₆₇～R ₈₁, tuned transformer L ₁₉, L ₃₀, crystal oscillator G ₃, filter F ₅, F ₆Connect and compose jointly, radiating circuit 23 is by triode T ₇～T ₉, inductance L ₁₅～L ₁₈, capacitor C ₆₉～C ₈₂, resistance R ₄₉～R ₅₄, R ₅₇～R ₆₄Connect and compose jointly, switching network 30 is by IC ₉, IC ₁₀Connect and compose jointly, telephony interface network 36 is by IC ₁₃And peripheral cell resistance R ₉₉～R ₁₃₅, capacitor C ₁₃₃～C ₁₅₆, C ₁₅₈～C ₁₆₈, C ₁₇₀, diode D ₁₉～D ₂₂, voltage stabilizing didoe D ₂₃, triode T ₁₁～T ₁₃Connect and compose jointly, ringing circuit 34 is by IC ₁₁, IC ₁₂And peripheral cell resistance R ₁₀₁～R ₁₀₆, capacitor C ₁₂₇～C ₁₃₂, diode D ₁₄～D ₁₇, voltage stabilizing didoe D ₁₈, transformer BT ₁Connect and compose jointly, handle circuit 31 is by resistance R ₁₃₆, capacitor C ₁₅₇, C ₁₆₉Connect and compose jointly, handle 27 is by transmitter M3 and receiver REC ₁Constitute, EEPROM32 is by IC ₇With C ₁₁₉The formation that is connected in parallel, LCD MODULE 16 is by IC ₁₄And peripheral cell capacitor C ₁₇₀～C ₁₇₃, resistance R ₁₃₇, crystal oscillator G ₅, light-emitting diode D ₁₉Connect and compose jointly.

The utility model compared with prior art has following advantage and beneficial effect: (1) need not base or base station, and the mobile phone more than two ones just can have a device of one's own; (2) communication between the mobile phone is not influenced by mains failure; (3) communication between the mobile phone is not limited to certain building, and certain city as long as the distance between the mobile phone is no more than the distance that its transmitting power and receiving sensitivity determines, then can be used on any ground; (4) for the device that base or base station are arranged, the communication between the mobile phone does not take the wireless channel (hardware device) on wire message way and base or the base station, only takies a channel, and therefore, it is bigger that this installed capacity is promptly installed the mobile phone number that can be with.For no base or base station change the channel full duplex device, installed capacity is only relevant with the channel number; (5) easy to use flexible, install changeable; (6) scope of application is wide: both can be used for building site, market scheduling, also can be used for communicating by letter between family, the groupuscule member; (7) with low cost; (8) except normally dialing functions such as outside line, diverting call, tripartite talks, realized full-duplex communication between the mobile phone of this device; (9) as long as the distance between the mobile phone is no more than 300 meters, then mobile phone can be communicated by letter anywhere, is not limited near the base; (10) mobile phones still can be communicated by letter between other mobile phone when base and outside line conversation in twos, do not disturb mutually; The mobile phone of (11) two above any amount all can be formed a little cordless telephone device, thereby easy to use, flexible; (12) because the cost of device is identical with existing cordless telephone device, thereby the ratio of performance to price is very superior.

Below Figure of description is further specified as follows: Fig. 1 forms and the operation principle block diagram for changing channel full duplex cordless telephone device structure; Fig. 2 forms block diagram for changing channel full duplex cordless telephone device mobile phone circuit; Fig. 3 forms block diagram for changing channel full duplex cordless telephone device base circuit; Fig. 4 is a mobile phone microcontroller Control Software program flow diagram; Fig. 5 is a base microcontroller Control Software program flow diagram; Fig. 6～Fig. 9 is for changing channel full duplex cordless telephone device mobile phone circuit schematic diagram: Figure 10～Figure 14 for changing channel full duplex cordless telephone device base circuit theory diagrams.B2 is a buzzer 13, and B1 is a receiver 7, and M1 is a transmitter 11, and B3 is a loud speaker 33, and M2 is a hands-free microphone 35.Holding wire MIX1, MIX2 among Fig. 6, TXVCO, MOD respectively with Fig. 7 in the corresponding connection of holding wire MIX1, MIX2, TXVCO, MOD; Control line TXPD, TXEN among Fig. 6 respectively with Fig. 7 in the corresponding connection of control line TXPD, TXEN; Control line ANTSW1, ANTSW2 among Fig. 6 respectively with Fig. 8 in the corresponding connection of control line ANTSW1, ANTSW2; Data wire TXDAT among Fig. 6 is connected with data wire TXDAT among Fig. 8; Control line TXEN, BD1 among Fig. 7, PLLDAT, PLLEN, PLLCLK respectively with Fig. 8 in the corresponding connection of control line TXEN, BD1, PLLDAT, PLLEN, PLLCLK; The corresponding connection of data wire RXDAT among data wire RXDAT among Fig. 7 and Fig. 8; Clock line MCUCLK among Fig. 7 is connected with clock line MCUCLK among Fig. 8; Power line VDD among Fig. 6 is connected with power line VDD among Fig. 7, Fig. 8, Fig. 9; Control line LCDHK, LCDCLK among Fig. 8, LCDDAT respectively with Fig. 9 in the corresponding connection of control line LCDHK, LCDCLK, LCDDAT.Holding wire MIX1, MIX2 among Figure 10, TXVCO, MOD respectively with Figure 11 in the corresponding connection of holding wire MIX1, MIX2, TXVCO, MOD; Control line TXPD, RFPWR among Figure 10 respectively with Fig. 7 in the corresponding connection of control line TXPD, RFPWR; Control line RESET, PWRDET among Figure 10, TXDAT, TXEN respectively with Figure 12 in the corresponding connection of control line RESET, PWRDET, TXDAT, TXEN; Control line PLLDAT, PLLEN among Figure 11, PLLCLK, CD respectively with Figure 12 in the corresponding connection of control line PLLDAT, PLLEN, PLLCLK, CD; Data wire RXDAT, COMIN among Figure 10, EXPOUT respectively with Figure 12 in the corresponding connection of data wire RXDAT, COMIN, EXPOUT; Power line VDD among Figure 10 is connected with power line VDD among Figure 12, Figure 14; Control line LCDHK, LCDCLK among Figure 12, LCDDAT respectively with Figure 14 in the corresponding connection of control line LCDHK, LCDCLK, LCDDAT; Holding wire REC, MICIN among Figure 12, MIC, LN, LOUT, RCVR, RINGDET, DTMF respectively with Figure 13 in the corresponding connection of holding wire REC, MICIN, MIC, LN, LOUT, RCVR, RINGDET, DTMF; Control line LNSZ, SPS among Figure 12, MUTE respectively with Figure 13 in the corresponding connection of control line LNSZ, SPS, MUTE.

Execution mode of the present utility model can be as follows: the layout design and the processing of the casing of (1) mobile phone, base, switch etc. can be manufactured with reference to the method for manufacturing of existing mobile phone, base casing fully; (2) press Fig. 6～drafting mobile phone printed circuit board (PCB) shown in Figure 9, and the screening components and parts carry out Installation and Debugging.Wherein: SAW filter F ₁Optional KS45/48 type, field-effect transistor T ₄Optional 2SK241 type, transistor T ₇～T ₉Optional 2N3904 type, the optional MV2105 type of transfiguration triode, cordless telephone application-specific integrated circuit (ASIC) IC1 can select the MC13110 type for use; The optional AT24LC01 type of EEPROMIC2, single-chip microcomputer IC ₃Optional MC68HC05C4 type, lcd driver IC ₄Optional HT1611 type; (3) press Figure 10～drafting base printed circuit board (PCB) shown in Figure 14, and the screening components and parts carry out Installation and Debugging.Wherein: SAW filter F ₄Optional KS45/48 type, field-effect transistor T ₆Optional 2SK241 type, transistor T ₇～T ₉Optional 2N3904 type, variable capacitance diode D ₁₁Optional MV2105 type, cordless telephone application-specific integrated circuit (ASIC) IC ₆Optional MC13110 type; EEPROMIC7 can select the AT24LC01 type for use, single-chip microcomputer IC ₈Can select the MC68HC05C4 type for use, the optional MC14066 type of analog switch IC9, IC10, the optional ML8204 type of ringing circuit integration member IC11, the optional MC33215 type of telephone interface circuit integration member IC13, the optional HT1611 type of lcd driver IC14; (4) connect, after the Installation and Debugging, just can realize the utility model preferably by each circuit interconnected relationship of the described mobile phone of top specification, each circuit interconnected relationship of base.

Claims (2)

1, a kind of channel full duplex cordless telephone device that changes, it is characterized in that: it changes the channel full duplex mobile phone by a base and multi-section and is interconnected to constitute by transmitting and receiving radio wave, its interconnected relationship is: base is electrically connected with local telephone mutually by telephone wire, base be connected by transmitting and receiving radio wave between the mobile phone arbitrarily, be connected by transmitting and receiving radio wave between mobile phone and other mobile phone: change that the channel full duplex mobile phone can need not to dispose base or the base station has a device of one's own more than two ones; Wherein, Change the channel full duplex mobile phone by antenna (1), duplexer able to programme (2), receiving preamplifier (3), FM demodulator (4), receive phase-locked loop (5), receive audio process (6), receiver (7), radiating circuit (8), emission phase-locked loop (9), transmitting audio frequency processor (10), transmitter (11), microcontroller (12), buzzer (13), keyboard (14), EEPROM (15), LCD MODULE (16) is electrically connected formation mutually, its interconnected relationship is: antenna (1) is electrically connected mutually by rf signal line and duplexer able to programme (2), and duplexer able to programme (2) receives line by radiofrequency signal and receiving preamplifier (3) is electrically connected mutually; Receiving preamplifier (3) is electrically connected mutually by amplifier output signal line and FM demodulator (4); Receiving phase-locked loop (5) is electrically connected mutually by control signal wire and FM demodulator (4); FM demodulator (4) is electrically connected mutually by audio signal wire and reception audio process (6); Receiving audio process (6) is electrically connected mutually by audio signal wire and receiver (7); Transmitter (11) is electrically connected mutually by the audio signal wire and the transmitting audio frequency processor (10) of its output; Transmitting audio frequency processor (10) is electrically connected mutually by audio signal wire and radiating circuit (8); Emission phase-locked loop (9) is electrically connected mutually by control signal wire and radiating circuit (8); Radiating circuit (8) is electrically connected mutually by emission of radio frequency signals line and duplexer able to programme (2): microcontroller (12) is electrically connected with radiating circuit (8) and duplexer able to programme (2) respectively mutually by control signal wire; Microcontroller (12) by data signal line and control signal wire and FM demodulator (4), receive phase-locked loop (5), receive audio process (6), emission phase-locked loop (9), transmitting audio frequency processor (10) be electrically connected mutually; Microcontroller (12) is electrically connected mutually by keyboard detection line and keyboard (14); Microcontroller (12) sends line and prompt tone holding wire and buzzer (13) by bell signal and is electrically connected mutually; Satellite controller (12) is electrically connected with EEPROM (15) and LCD MODULE (16) respectively mutually by serial data line.

2, by the described a kind of channel full duplex cordless telephone device that changes of claim 1, it is characterized in that: describedly change microcontroller (12) in the channel full duplex mobile phone by single-chip microcomputer IC ₃And resistance R ₃₂, R ₃₃, R ₃₈～R ₄₁Connect and compose jointly, duplexer able to programme (2) is by diode D ₁～D ₄, inductance L ₂～L ₄, resistance R ₁, filter F ₁Constitute, receiving preamplifier (3) is by field effect transistor T ₄, resistance R ₈, R ₉, capacitor C ₁₄～C ₁₇, high-frequency tuning transformer L ₇And inductance L ₈Connect and compose jointly, FM demodulator (4), reception phase-locked loop (5), reception audio process (6), emission phase-locked loop (9), transmitting audio frequency processor (10) are jointly by integrated circuit (IC) I and peripheral cell capacitor C thereof ₂₂～C ₅₃, resistance R ₁₈～R ₃₁, transformer L ₁₀, L ₁₁, inductance L ₁₂, crystal oscillator G ₁, filter F ₂, F ₃Connect and compose jointly, radiating circuit (8) is by triode T ₁～T ₃, inductance L ₁, L ₅, L ₆, L ₉, capacitor C ₂～C ₁₃, C ₁₈～C ₂₁, resistance R ₂～R ₇, R ₁₀～R ₁₇Connect and compose jointly, EEPROM (15) is by IC ₂Capacitor C ₅₄, resistance R ₃₄, R ₃₅Connect and compose jointly, LCD MODULE (16) is by IC ₄And peripheral cell capacitor C ₆₀～C ₆₃, light-emitting diode D ₈Connect and compose jointly.

Images