CN2448017Y - Wireless telephone fixing terminal arrangement with secondary phone - Google Patents
Wireless telephone fixing terminal arrangement with secondary phone Download PDFInfo
- Publication number
- CN2448017Y CN2448017Y CN 00240150 CN00240150U CN2448017Y CN 2448017 Y CN2448017 Y CN 2448017Y CN 00240150 CN00240150 CN 00240150 CN 00240150 U CN00240150 U CN 00240150U CN 2448017 Y CN2448017 Y CN 2448017Y
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- China
- Prior art keywords
- circuit
- secondary machine
- machine
- main frame
- pressure limiting
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- Expired - Fee Related
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Abstract
The utility model relates to a wireless telephone fixing terminal arrangement with a secondary telephone, comrpising a host machine. The host machine comprises a wireless receiving, sending, and main control circuit 11 and a man-machine interface 12 which is provided with a loudspeaker, a microphone, and a button. Particularly the utility model also comprises an auxiliary machine 3 which is connected with the host machine. The wireless receiving, sending, and main control circuit 11 is a universal GSM or CDMA receiving, sending, and main control circuit. The utility model has the advantages that a terminal of an emergency telephone in highway is designed into a structure of an auxiliary machine; a switching mode is used to respond to the calling request of the main and the auxiliary machines; each pair of emergency terminal only adopts a set of communication module, which highly reduces mouth lease channel and operating cost of a single terminal and saves precious number sources.
Description
The utility model relates to the wireless communication applications field, particularly uses the fixed terminal device of GSM or CDMA standard.
Existing radio is talked about the fixed terminal device, for example adopts the terminal of GSM or CDMA standard Freeway Emergency Telephone System, all adopts the unit structure, and promptly each emergency terminal contains complete general GSM or CDMA communication module.Because adopt public network, the user must pay the Monthly Fee and the call rate of GSM or CDMA number by terminal number, equipment cost is higher.
The utility model is that the above-mentioned weak point that overcomes prior art proposes a kind of radio telephone fixed terminal device with secondary machine, with original radio telephone terminal device, for example the emergency terminal of GSM or CDMA Freeway Emergency Telephone System is designed to major-minor machine structure, every pair of emergency terminal only contains the complete universal communication module of a cover, reduce the cost of single emergency terminal significantly, the user only need pay 50% Monthly Fee, reduces user's operation cost, also is that society saves valuable number source.
The purpose of this utility model can reach by adopting following technical measures: design, a kind of radio telephone fixed terminal device with secondary machine of manufacturing, comprise the fixed terminal main frame, this main frame comprises wireless receiving and dispatching and governor circuit again and contains the man-machine interface of loudspeaker S1, microphone M1 and button SW1 that especially this fixed terminal device also comprises the secondary machine that links to each other with described main frame.
The utility model brief description of drawings is as follows:
Fig. 1 is the radio telephone fixed terminal principle of device block diagram of the secondary machine of the utility model band;
Fig. 2 is the internal circuit diagram of used analog switch device;
Fig. 3 is the relevant circuit theory diagrams of radio telephone fixed terminal device of the secondary machine of described band.
Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing.
A kind of radio telephone fixed terminal device with secondary machine, comprise fixed terminal main frame 1, this main frame 1 comprises wireless receiving and dispatching and governor circuit 11 again and contains the man-machine interface 13 of loudspeaker S1, microphone M1 and button SW1 that especially this fixed terminal device also comprises the secondary machine 3 that links to each other with described main frame 1.Described wireless receiving and dispatching and governor circuit 11 can be general CDMA transmitting-receiving and governor circuit.In this example, described wireless receiving and dispatching and governor circuit 11 are general GSM transmitting-receiving and governor circuit.
Described secondary machine 3 comprises the man-machine interface 33 that contains loudspeaker S2, microphone M2 and button SW2 again, and the secondary machine lightning protection pressure limiting circuit 35 that is electrically connected with above-mentioned three equipment of setting.Line between the described major and minor machine is a Shielded Twisted Pair.Because this connecting line can reach more than the 50-60 rice, avoid responding to high pressure and enter system so must increase described lightning protection circuit at the inlet of connecting line.
By the same token, described main frame 1 also is provided with main frame lightning protection pressure limiting circuit 15; Because major-minor machine connecting line can produce loss, especially the voice output part can produce the power attenuation about 5DB, so major and minor machine voice gain also is set and adjusts amplifying circuit 161,162, transmits after the voice amplification with secondary machine again; Commutation circuit 17 also is set in addition, is responsible for the phonetic entry output of system is connected to the end host or the secondary machine of working.
By the physical circuit shown in the accompanying drawing as can be known, each signal flow of the utility model device is to as follows with the vital part annexation:
When described secondary machine 3 is enabled, the push button signalling that button SW2 produces does not need lightning protection directly to arrive the GSM transmitting-receiving after 3, No. 4 lines of connector are delivered to PTC3, PTC4 current limliting and V2, C2, the FL2 lightning protection pressure limiting filtering of main frame lightning protection pressure limiting circuit 15 and handles input P2 with governor circuit 11 secondary machine buttons.
The voice signal of described secondary machine 3 is picked up by microphone M2, after the PTC9 current limliting of secondary machine lightning protection pressure limiting circuit 35 and FL6, C5, V6 lightning protection pressure limiting filtering, deliver to a secondary machine that arrives commutation circuit 17 after PTC7, PTC8 current limliting and FL4, C4, the V4 pressure limiting filtering of main frame lightning protection pressure limiting circuit 15 by 5, No. 6 lines of connector and switch the position.
Described commutation circuit 17 another secondary machines switch the position, the main frame voice signal after PTC3, PTC4 current limliting and V3, the C3 of main frame lightning protection pressure limiting circuit 15, FL3 lightning protection pressure limiting filtering, is arrived secondary machine loudspeaker S2 after delivering to the PTC10 current limliting of secondary machine lightning protection pressure limiting circuit 35 and V5, C8, FL5 lightning protection pressure limiting filter skin by 7, No. 8 lines of connector.
The main frame of described commutation circuit 17 switches the position and meets main frame loudspeaker S1 and main frame microphone M1 respectively.
Described main frame button SW1 connects the P8 input of GSM transmitting-receiving and governor circuit 11.
The microphony signal of described commutation circuit 17 switches cutter delivers to secondary machine voice gain and the input of adjusting amplifying circuit 162 with the microphony signal, amplifies through amplifying circuit that A21B, RD11 to RD14 form and analog switch A22 bi-level treatment and send the main control module phonetic entry P4 end of GSM transmitting-receiving with governor circuit 11 after adjusting.
Described GSM transmitting-receiving connects the input of exporting voice gain adjustment circuit 161 with the main control module speech output end P3 of governor circuit 11, send the voice cutter spacing of commutation circuit 17 after amplifying circuit, analog switch A12, power amplification A13 tertiary treatment amplification that A11A, RD7 to RD10 form are adjusted.
Major-minor machine switching controls end P5, the P6 of described governor circuit 11 connect the analog selection switch A12 of voice gain adjustment circuit 161,162, the control end of A22 respectively, and the phonetic entry and the output gain signal of secondary machine are adjusted; The control end of the described commutation circuit 17 of P7 termination of this major-minor machine control switching circuit by triode V7 control relay RL1, allows the work of major and minor wheel stream.
When host work, the voice signal access main frame loudspeaker S1 with P3 output sends into main control module phonetic entry controller with the voice signal of main frame microphone M1 by P4; When the work of secondary machine, with the voice signal of P3 output after gain is adjusted by 7,8 pin of connector D2, D1, enter secondary machine by major-minor machine on line; Again by arriving secondary machine loudspeaker S2 after the PTC10 current limliting of secondary machine lightning protection pressure limiting circuit 35 and V5, C8, the FL5 lightning protection pressure limiting filtering; Simultaneously, the voice signal that picks up of secondary machine microphone M2 is delivered to secondary machine voice gain and is adjusted amplifying circuit 162 and carry out bi-level treatment and amplify and send the main control module phonetic entry P4 end of GSM transmitting-receiving with governor circuit 11 after adjusting through switched cutter behind the two-stage lightning protection measures by commutation circuit 17 microphony signals.
The utility model is with respect to the advantage of prior art, make the radio telephone terminal device, for example the emergency terminal of GSM or CDMA Freeway Emergency Telephone System is designed to major-minor machine structure, adopt switching mode to respond major and minor machine off-hook push-to-talk request, every pair of emergency terminal only contains a general GSM of cover or a CDMA communication module, significantly reduce the cost and the channel Monthly Fee of single terminal, cut operating costs, save the preciousness source.
The Primary Component that the utility model adopted is as follows:
Sequence number figure number title model producer
1 A11A, A21B integrated transporting discharging LM258
2 A13 integrated amplifier LM4752
3 A12, A22 analog switch AQW210 NAIS
4 V7 triodes
5 V1-V6 voltage stabilizing didoes
6 FL1-FL6 lightning protection short-circuiting devices
Claims (7)
1, a kind of radio telephone fixed terminal device with secondary machine comprises fixed terminal main frame (1), and this main frame (1) comprises wireless receiving and dispatching and governor circuit (11) again and contain the man-machine interface (13) of loudspeaker S1, microphone M1 and button SW1,
It is characterized in that:
This fixed terminal device also comprises the secondary machine (3) that links to each other with described main frame (1).
2, according to the radio telephone fixed terminal device of the secondary machine of the described band of claim 1, it is characterized in that:
Described wireless receiving and dispatching and governor circuit (11) are CDMA transmitting-receiving and governor circuit.
3, according to the radio telephone fixed terminal device of the secondary machine of the described band of claim 1, it is characterized in that:
Described wireless receiving and dispatching and governor circuit (11) are GSM transmitting-receiving and governor circuit.
4, according to the radio telephone fixed terminal device of claim 2 or the secondary machine of 3 described bands, it is characterized in that:
Described secondary machine (3) comprises the man-machine interface (33) that contains loudspeaker S2, microphone M2 and button SW2 again, and the secondary machine lightning protection pressure limiting circuit (35) that is electrically connected with above-mentioned three equipment of setting.
5, according to the radio telephone fixed terminal device of the secondary machine of the described band of claim 4, it is characterized in that:
Described main frame (1) also is provided with main frame lightning protection pressure limiting circuit (15), major and minor machine voice gain and adjustment amplifying circuit (161), (162) and commutation circuit (17).
6, according to the radio telephone fixed terminal device of the secondary machine of the described band of claim 5, it is characterized in that:
The push button signalling that described secondary machine (3) button SW2 produces, deliver to PTC3, PTC4 current limliting and V2, C2, the FL2 lightning protection pressure limiting filtering of main frame lightning protection pressure limiting circuit (15) through 3, No. 4 lines of connector, send to the secondary machine button of wireless receiving and dispatching and governor circuit (11) again and handle input P2;
Described secondary machine (3) voice signal is picked up by microphone M2, through secondary machine lightning protection pressure limiting circuit (35) PTC9 current limliting and FL6, C5, V6 lightning protection pressure limiting filtering, deliver to main frame lightning protection pressure limiting circuit (15) PTC7, PTC8 current limliting and FL4, C4, V4 pressure limiting filtering by 5, No. 6 lines of connector, a secondary machine sending to commutation circuit (17) again switches the position;
Another secondary machine of described commutation circuit (17) switches the position, with of PTC3, PTC4 current limliting and V3, C3, the FL3 lightning protection pressure limiting filtering of main frame voice signal through main frame lightning protection pressure limiting circuit (15), deliver to secondary machine lightning protection pressure limiting circuit (35) PTC10 current limliting and V5, C8, FL5 lightning protection pressure limiting filtering by 7, No. 8 lines of connector, arrive secondary machine loudspeaker S2;
The main frame of described commutation circuit (17) switches the position and meets main frame loudspeaker S1 and main frame microphone M1 respectively;
Described main frame button SW1 connects the P8 input of wireless receiving and dispatching and governor circuit (11);
The microphony signal switching cutter of described commutation circuit (17) is delivered to secondary machine voice gain and the input of adjusting amplifying circuit (162) with the microphony signal, send the main control module phonetic entry P4 end of wireless receiving and dispatching and governor circuit (11) after A21 and A22 bi-level treatment amplification adjustment;
The main control module speech output end P3 of described wireless receiving and dispatching and governor circuit (11) connects output voice gain adjustment circuits (161) input, amplifies to adjust through A11A, A12, A13 tertiary treatment and send commutation circuit (17) voice cutter spacing;
Major-minor machine switching controls end P5, the P6 of described governor circuit (11) connect the analog selection switch A12 of voice gain adjustment circuit (161), (162), the control end of A22 respectively; The control end of the described commutation circuit of P7 termination (17) of this major-minor machine control switching circuit.
7, according to the radio telephone fixed terminal device of the secondary machine of the described band of claim 6, it is characterized in that:
Line between the described major and minor machine is a Shielded Twisted Pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00240150 CN2448017Y (en) | 2000-11-07 | 2000-11-07 | Wireless telephone fixing terminal arrangement with secondary phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00240150 CN2448017Y (en) | 2000-11-07 | 2000-11-07 | Wireless telephone fixing terminal arrangement with secondary phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2448017Y true CN2448017Y (en) | 2001-09-12 |
Family
ID=33600853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00240150 Expired - Fee Related CN2448017Y (en) | 2000-11-07 | 2000-11-07 | Wireless telephone fixing terminal arrangement with secondary phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2448017Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008122211A1 (en) * | 2007-04-10 | 2008-10-16 | Huawei Technologies Co., Ltd. | A wireless fixed terminal |
-
2000
- 2000-11-07 CN CN 00240150 patent/CN2448017Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008122211A1 (en) * | 2007-04-10 | 2008-10-16 | Huawei Technologies Co., Ltd. | A wireless fixed terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |