CN201467471U - PSTN and CDMA double-mode all-in-one machine - Google Patents
PSTN and CDMA double-mode all-in-one machine Download PDFInfo
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- CN201467471U CN201467471U CN2009200740871U CN200920074087U CN201467471U CN 201467471 U CN201467471 U CN 201467471U CN 2009200740871 U CN2009200740871 U CN 2009200740871U CN 200920074087 U CN200920074087 U CN 200920074087U CN 201467471 U CN201467471 U CN 201467471U
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Abstract
The utility model relates to a PSTN and CDMA double-mode all-in-one machine which comprises a voice input/output device and a radio frequency chip, wherein the voice input/output device is connected with a CDMA baseband chip, the radio frequency chip is used for modulating/demodulating CDMA wireless signals, a universal asynchronous transmission interface of the CDMA baseband chip is connected with an auxiliary processor through RS232, and a singlechip is connected with the voice input/output device through a voice control circuit; the CDMA baseband chip distinguishes wired signals and wireless signals through controlling the singlechip, and the singlechip switches voice channels through controlling the voice control circuit. The utility model supports simultaneous call incoming and conversation switching in two lines, twp telephones can be kept in simultaneous conversation states, and users can select different lines to use according to actual network conditions and expenses, thereby improving the utilization ratio of network resources and saving the expenses.
Description
Technical field
The utility model relates to a kind of PSTN and CDMA dual module integral machine.
Background technology
In field of wireless communication, support that the dual-mode handset of heterogeneous networks is more and more universal, such as GSM﹠amp; CDMA, GSM﹠amp; WCDMA, GSM﹠amp; PHS etc.But the communicating terminal in conjunction with wired telephone network and wireless telephony network is fewer.Because cable network and wireless network be at the cost of arranging net, the overlay area, aspects such as rate respectively have superiority, PSTN﹠amp; CDMA dual module integral machine has very strong practicality in some areas.The advantage of wired telephone network is signal stabilization, answers free.Shortcoming is to be subjected to region and spatial limitation higher in some regional construction costs, wireless network sets up the advantage of the low broad covered area of cost with respect to the cable network base station, the density of the cdma network of low-frequency range such as 450M base station is lower, is more conducive to scarcely populated and mountain area and arranges net.Because it is simpler to be that the communication of digital communication mode wireless inserts the Internet, the IP mode of being convenient to toll message realizes, the line resource that takies still less, rate are lower.Shortcoming is to answer the generation expense, is not so good as to have line stabilization personnel and the intensive regional service quality of wireless telecommunications.
The utility model content
Technical problem to be solved in the utility model is: at the defective of above-mentioned existence, provide a kind of PSTN and CDMA dual module integral machine in conjunction with wired telephone network and wireless telephony network.
The utility model is achieved in that
A kind of PSTN and CDMA dual module integral machine, comprise the phonetic entry output device that links to each other with the CDMA baseband chip, and the radio frequency chip that is used for modulation cdma wireless signal, the universal asynchronous coffret of described CDMA baseband chip links to each other with auxiliary processor by RS232, and described single-chip microcomputer links to each other with described phonetic entry output device by voice control circuit; Described CDMA baseband chip is distinguished wire signal and wireless signal by control single chip computer, and described single-chip microcomputer is by controlling the switching that described voice control circuit carries out voice channel.
Built-in ARM7 central processing unit of described CDMA baseband chip and double digital signal processor.
The built-in DTMF testing circuit of described voice control circuit, four general input/output terminals by described DTMF testing circuit and clock control end link to each other with described single-chip microcomputer, transmit the number of wired incoming call and the number of exhalation.
The audio frequency input/output terminal of described double digital signal processor links to each other with the voice control end of described voice control circuit by voicefrequency circuit.
Described phonetic entry output device comprises hands-free input/output unit and handle input/output unit.
Also comprise the LCD, keyboard and the memory that link to each other with described CDMA baseband chip.
The beneficial effects of the utility model:
The utility model is by shared LCDs, keyboard, voice control circuit, resources such as memory, with the CDMA baseband chip as the master control central processing unit, single-chip microcomputer is as auxiliary processor, the Single-chip Controlling voice control circuit is linked into cable network .CDMA and one-chip machine common voice control circuit by standard phone line, be linked into the cdma wireless network by the mutual communication .CDMA of RS232 baseband chip by radio frequency chip and antenna, can be by user's Dynamic Selection circuit when each phone is breathed out, perhaps set certain circuit as default. LCDs shows the circuit of current employing in prompting user outgoing call. and LCDs has caller identification and circuit prompting during the phone incoming call. and two circuits of all-in-one support of the present utility model are sent a telegram here simultaneously and are conversed switching, two phones can keep talking state simultaneously. and the user can select different circuits to use with rate according to the network condition of reality, improves network resource utilization and saves rate.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural principle schematic diagram of the utility model PSTN and CDMA dual module integral machine.
Fig. 2 is the connection diagram of the utility model control section.
Embodiment
With reference to the accompanying drawings 1 and 2, a kind of PSTN and CDMA dual module integral machine, on the frame structure basis of existing CDMA phone, increased single-chip microcomputer and SLIC voice control circuit, the universal asynchronous coffret (UART) that single-chip microcomputer adopts the at89c51 series of Atmel to pass through standard RS232 and CDMA baseband chip is connected.The CDMA baseband chip adopts Weisheng (VIA) CBP5.0/5.1 processor, its built-in ARM7 central processing unit and double digital signal processor (DSP) kernel.Adopt GCT6401/6402 800MHz/450MHz as radio frequency chip, memory adopts the SV7C3208UXA 32+8MbNor Flash of Slicon7, and the SLIC voice control circuit adopts the MT100 slic circuit of ATEL.
Its course of work comprises:
1.CDMA the communication between baseband chip and the single-chip microcomputer
By band hardware flow control RS232 serial communication interface, main pin has power line VDD, and ground wire GND receives RX, sends TX, and hardware flow control RTS/CTS, single-chip microcomputer wake GPIO33 up and CDMA wakes DTR up, sees figure two.Such as user's telephone of breathing out, at first by dialing and select the mode of wired exhalation, CDMA before sending instructions to single-chip microcomputer, put the GPIO33 pin be high level to wake single-chip microcomputer up, make microcontroller serial port enter accepting state.The CDMA baseband chip is notified single-chip microcomputer by the Tx pin of RS232 in the mode of serial, single-chip microcomputer by GPIO3～6 four a general input and output pin and clock pin in parallel mode the number notifying of breathing out to the SLIC voice control circuit, the SLIC voice control circuit is responsible for that digital signal is converted to analog signal and is exported telephone wire to by analog voice Tx pin.After the other side answers.The SLIC voice control circuit with connection signal again by GPIO3～6 with parallel mode notice single-chip microcomputer, the voice channel that single-chip microcomputer switches the SLIC voice control circuits by GPIO1 and 2 is to wired call mode, the cable modem phone network is connected.If wireless incoming call of while, the CDMA baseband chip has the radio telephone incoming call in the LCD prompting behind the incoming telephone signal of handling antenna and radio frequency chip, answer if select, send by radio frequency chip and antenna and to answer signal, the signal of network loopback successful connection, the CDMA baseband chip sends instruction by RS232 and goes code to single-chip microcomputer, switches to wireless controller or hands-free state by single-chip microcomputer by GPIO1 and GPIO2 control SLIC voice control circuit.Wired conversation this moment also remains on talking state, but can't hear the other side's sound, and the user carries out wireless communication.All-in-one provides the interface of switching voice channel, can wired and wireless between switch, the CDMA baseband chip switches voice channels by single-chip microcomputer by GPIO1 and 2 control SLIC again by the commands for controlling single-chip microcomputer.
2. the communication between single-chip microcomputer and the SLIC voice control circuit
Single-chip microcomputer switches voice channel by two general input and output GPIO signal controlling SLIC voice control circuits, four general input and output GPIO signals and clock signal and SLIC voice control circuit carry out the touch-tone signal transmission, being used for the outgoing call and the caller identification of telephone. high level is 1, low level is the relation such as the table one of 0.GPIO1 and GPIO2 state and voice channel, when telephone and radio telephone are conversed simultaneously, select to instruct to single-chip microcomputer by users' interfaces by the transmission of CDMA baseband chip, again by single-chip microcomputer output GPIO1,2 signal controlling SLIC voice control circuits can be at wired handle, wireless controller, switch between the wireless hands-free passage, maintenance two is taken on the telephone simultaneously online.
The transmission of dual tone multi-frequency dtmf signal between SLIC voice control circuit and the single-chip microcomputer is notified wired caller ID and outgoing call transmission by the level state and the clock CLK pin of four general input and output GPIO signals, can have altogether that 15 numerals or symbol wherein use 0～9, *, # etc.During such as the telephone incoming call, after single-chip microcomputer obtains shake bell and incoming call prompting from the SLIC voice control circuit by DTMF testing circuit wherein, at first putting CDMA, to wake the DTR pin up be low level, activate CDMA, RX pin by RS232 sends instruction to CDMA with serial mode, and CDMA shows caller ID to LCD after receiving instruction and shakes bell.Answer key if press, the CDMA baseband chip will be answered instruction and be put single-chip microcomputer by the Tx pin of RS232 with the serial mode transmission, single-chip microcomputer switches voice channels to the cable voice pattern by two GPIO signal controlling SLIC voice control circuits after receiving and answering instruction, just can converse in wired mode with the other side
Table one Single-chip Controlling GPIO level and voice channel switch
| GPIO1，GPIO2 | 0，0 | 0，1 | 1，0 | 1，1 |
| The voice channel state | Close All | The cable voice passage | The wireless controller passage | The wireless hands-free passage |
3.CDMA baseband chip is connected with the signal of SLIC voice control circuit
The CDMA baseband chip is supported two voice channels, and main channel MAIN and accessory channel AUX are respectively applied for handle and hand-free call, see the voicefrequency circuit among the figure two for details.Main signal pin has the both positive and negative polarity MIC1-P/N of MIC1, the both positive and negative polarity MIC2-P/N of MIC2, and the both positive and negative polarity SPK-P/N of SPEAKER, the both positive and negative polarity REV-P/N of RECEIVER is by inserting the SLIC voice control circuit behind the voicefrequency circuit.Voicefrequency circuit is mainly by hands-free SPEAKER amplifying circuit, and the amplifying circuit of hands-free MIC and other sound circuits are formed, and are the used general voicefrequency circuit of common phone.The other end of SLIC voice control circuit and microphone, equipment such as loudspeaker connect the transmission voice.When wireless speech is connected, user's voice outputs to the SLIC voice control circuit by handle Mike MIC1, by inserting the CDMA baseband chip after the voicefrequency circuit transfer, convert digital signal to by double digital signal processor, again the modulation by radio frequency chip by antenna transmission to the base station.When wireless speech receives, the base station transmits wireless signal is to antenna, by radio frequency chip demodulation input CDMA baseband chip double digital signal processor, import the SLIC voice control circuit by the amplification of voicefrequency circuit after converting analog voice signal to, the voice channel of connecting by the SLIC voice control circuit transfers to handle receiver REV again, and the user has just heard the other side's sound.When cable voice was connected, the user imported the SLIC voice control circuit by handle Mike MIC1 with sound, and the SLIC voice control circuit transfers to the analog telephone line interface by the cable voice passage of on analog voice signal.The other side's sound enters the SLIC voice control circuit by the analog telephone line interface, transfers to handle receiver REV by the SLIC voice control circuit, and the user just can stop sound to the other side from the handle receiver.Wire and wireless is shared handle, the hands-free equipment that waits.
4.CDMA baseband chip is to the control of radio frequency chip
Radio frequency chip is mainly used in modulation cdma wireless signal, the switch that the CDMA baseband chip is controlled radio frequency chip by the serial programming interface SPI and the GPIO mode of built-in ARM7 central processing unit, gain etc.Other voice and CDMA digital signal are connected directly on the built-in double digital signal processor of CDMA baseband chip by two orthogonal vector signal pin I/Q, and a processed voice adds decoding, another deal with data and other wireless signals.
Top embodiment only is used to the utility model is described and is not used in restriction scope of the present utility model that protection range of the present utility model is described with claims of the present utility model and is as the criterion.Should be understood that in addition change or the modification of replacing various of equal value that those skilled in the art do the utility model falls within the utility model claims institute restricted portion equally after having read the content that the utility model tells about.
Claims (6)
1. PSTN and CDMA dual module integral machine, comprise the phonetic entry output device that links to each other with the CDMA baseband chip, and the radio frequency chip that is used for modulation cdma wireless signal, it is characterized in that: the universal asynchronous coffret of described CDMA baseband chip links to each other with auxiliary processor by RS232, and described single-chip microcomputer links to each other with described phonetic entry output device by voice control circuit; Described CDMA baseband chip is distinguished wire signal and wireless signal by control single chip computer, and described single-chip microcomputer is by controlling the switching that described voice control circuit carries out voice channel.
2. PSTN according to claim 1 and CDMA dual module integral machine is characterized in that: built-in ARM7 central processing unit of described CDMA baseband chip and double digital signal processor.
3. PSTN according to claim 1 and CDMA dual module integral machine, it is characterized in that: the built-in DTMF testing circuit of described voice control circuit, four general input/output terminals by described DTMF testing circuit and clock control end link to each other with described single-chip microcomputer, transmit the number of wired incoming call and the number of exhalation.
4. PSTN according to claim 2 and CDMA dual module integral machine is characterized in that: the audio frequency input/output terminal of described double digital signal processor links to each other with the voice control end of described voice control circuit by voicefrequency circuit.
5. PSTN according to claim 1 and CDMA dual module integral machine is characterized in that: described phonetic entry output device comprises hands-free input/output unit and handle input/output unit.
6. PSTN according to claim 1 and CDMA dual module integral machine is characterized in that: also comprise the LCD, keyboard and the memory that link to each other with described CDMA baseband chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200740871U CN201467471U (en) | 2009-06-17 | 2009-06-17 | PSTN and CDMA double-mode all-in-one machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200740871U CN201467471U (en) | 2009-06-17 | 2009-06-17 | PSTN and CDMA double-mode all-in-one machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201467471U true CN201467471U (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200740871U Expired - Lifetime CN201467471U (en) | 2009-06-17 | 2009-06-17 | PSTN and CDMA double-mode all-in-one machine |
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| CN (1) | CN201467471U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103118348A (en) * | 2011-11-17 | 2013-05-22 | 中兴通讯股份有限公司 | Incoming call handling method of dual-mode terminal and dual-mode terminal |
| CN103688524A (en) * | 2012-02-21 | 2014-03-26 | 华为技术有限公司 | Multi-path speech signal multiplexing circuit, equipment and method |
| CN104764913A (en) * | 2015-04-23 | 2015-07-08 | 北京出入境检验检疫局检验检疫技术中心 | Modulation reference source used for comparing specific absorption rate of wireless equipment with radiation performance test |
-
2009
- 2009-06-17 CN CN2009200740871U patent/CN201467471U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103118348A (en) * | 2011-11-17 | 2013-05-22 | 中兴通讯股份有限公司 | Incoming call handling method of dual-mode terminal and dual-mode terminal |
| CN103688524A (en) * | 2012-02-21 | 2014-03-26 | 华为技术有限公司 | Multi-path speech signal multiplexing circuit, equipment and method |
| CN103688524B (en) * | 2012-02-21 | 2015-01-21 | 华为技术有限公司 | Multi-path speech signal multiplexing circuit, equipment and method |
| CN104764913A (en) * | 2015-04-23 | 2015-07-08 | 北京出入境检验检疫局检验检疫技术中心 | Modulation reference source used for comparing specific absorption rate of wireless equipment with radiation performance test |
| CN104764913B (en) * | 2015-04-23 | 2017-06-23 | 北京出入境检验检疫局检验检疫技术中心 | Wireless device specific absorption rate and radiance test are compared with modulation reference source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ASIA TELCO (SHANGHAI) CO., LTD. Free format text: FORMER NAME: ASIATECLCO TECHNOLOGIES (SHANGHAI) CO. |
|
| CP03 | Change of name, title or address |
Address after: Bi Sheng Lu Pudong New Area Zhangjiang hi tech park Shanghai 201204 Lane 289 No. 8 301 Patentee after: Deming communications (Shanghai) Limited by Share Ltd Address before: Bi Sheng Lu Pudong New Area Zhangjiang hi tech park Shanghai city 201204 289 Lane 8, Room 301 Patentee before: AsiaTeclco Technologies (Shanghai) Co. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: PSTN and CDMA double-mode all-in-one machine Effective date of registration: 20130307 Granted publication date: 20100512 Pledgee: Bank of China Limited by Share Ltd Shanghai Development Zone, Pudong branch Pledgor: Deming communications (Shanghai) Limited by Share Ltd Registration number: 2013310000010 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |