CN201947260U - Bluetooth device and terminal - Google Patents
Bluetooth device and terminal Download PDFInfo
- Publication number
- CN201947260U CN201947260U CN2010206647794U CN201020664779U CN201947260U CN 201947260 U CN201947260 U CN 201947260U CN 2010206647794 U CN2010206647794 U CN 2010206647794U CN 201020664779 U CN201020664779 U CN 201020664779U CN 201947260 U CN201947260 U CN 201947260U
- Authority
- CN
- China
- Prior art keywords
- bluetooth
- master chip
- antenna module
- signal
- blue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Transceivers (AREA)
- Transmitters (AREA)
Abstract
The utility model discloses a Bluetooth device comprising a switching unit, a radio frequency power amplifier, a receiving antenna module for receiving signals, a sending antenna module for sending the signals and a Bluetooth master chip, wherein the switching unit is connected with the Bluetooth master chip and used for switching between the sending antenna module and receiving antenna module under the control of the Bluetooth master chip; the power amplifier is connected between the sending antenna module and the switching unit and used for amplifying radio frequency power signals. The Bluetooth device solves the problem in the prior art of a contradiction between the difficulty of the high-power-level chip and the unceasingly improved requirements on the transmission distance of a user, and enhances the user experience.
Description
Technical field
The utility model relates to the communications field, in particular to a kind of blue-tooth device and terminal.
Background technology
Bluetooth can fall into three classes according to transmitting power, is respectively: class 1, class 2, class 3, Dui Ying maximum transmission power is respectively: 100mW, 2.5mW, 1mW.Characteristics such as wherein, it is big that the bluetooth of class 1 grade has transmitting power, and signal transmission distance is long, effective propagation path can reach 100m, this shows, and the class difference is being represented the difference of transmitting power.Along with the increasing of increasing demand to the wireless communication transmission distance, the application of high power level is more and more wider.But because the bluetooth of high power level is to the having relatively high expectations of the wireless transceiver of radio frequency part, and because factor affecting such as chip cooling, making technology, radio-frequency (RF) index, therefore, the Bluetooth chip of making high power level is difficulty relatively.This shows that in the prior art, the demand to transmission range that the chip of high power level difficulty and user improve constantly has produced contradiction.
The utility model content
Main purpose of the present utility model is to provide a kind of blue-tooth device and terminal, to address the above problem at least.
According to an aspect of the present utility model, a kind of blue-tooth device is provided, comprise: switch unit, radio-frequency power amplifier, be used for received signal the reception antenna module, be used to send the transmitting antenna module and the bluetooth master chip of signal, wherein, described switch unit links to each other with described bluetooth master chip, is used under the control of described bluetooth master chip described transmitting antenna module and described reception antenna module being switched; Described power amplifier is connected between described transmitting antenna module and the described switch unit, is used to amplify rf power signal.
Preferably, this blue-tooth device also comprises: the bandpass filtering unit, described bandpass filtering unit is connected between described transmitting antenna module and the described radio-frequency power amplifier.
Preferably, described bandpass filtering unit comprises a bluetooth filter, perhaps, comprises the bluetooth filter of two series connection.
Preferably, this blue-tooth device also comprises: equilibrate to the unbalanced transformation filter, be connected between described switch unit and the described bluetooth master chip.
Preferably, described bluetooth master chip is the bluetooth master chip of bluetooth grade Class 2; The transmission signal power of described transmitting antenna reaches bluetooth Class 1 through after the described power amplifier.
Preferably, described switch unit is a single-pole double-throw switch (SPDT), and described bluetooth master chip is controlled described single-pole double-throw switch (SPDT) by switch controlling signal and switched between described transmitting antenna module and described reception antenna module.
According to another aspect of the present utility model, a kind of terminal also is provided, comprise above-mentioned blue-tooth device.
Pass through the utility model, adopt blue-tooth device, comprise: switch unit, radio-frequency power amplifier, be used for received signal the reception antenna module, be used to send the transmitting antenna module and the bluetooth master chip of signal, wherein, described switch unit links to each other with described bluetooth master chip, is used under the control of described bluetooth master chip described transmitting antenna module and described reception antenna module being switched; Described power amplifier is connected between described transmitting antenna module and the described switch unit, is used to amplify rf power signal.Solved the chip difficulty of high power level in the prior art and demand that the user improves constantly and had the problem of contradiction, and then improved user experience transmission range.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the structured flowchart according to the blue-tooth device of the utility model embodiment;
Fig. 2 is the structured flowchart according to the blue-tooth device of the utility model preferred embodiment;
Fig. 3 is the circuit theory diagrams according to the blue-tooth device of the utility model embodiment.
Embodiment
Hereinafter will describe the utility model with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Because being bluetooth wireless transceiver and modulation module, the base band control module with low power level (for example class 2 grades) mostly, the master chip (or being called main control chip) of present bluetooth is integrated in the single-chip, therefore, only rely on the bluetooth master chip can't further promote transmitting power, based on this, a kind of blue-tooth device is provided in following examples, and this device can be arranged in terminal.In this device, transmitting antenna module and reception antenna module branch are arranged.Fig. 1 is the structured flowchart according to the blue-tooth device of the utility model embodiment, as shown in Figure 1, this device comprises: switch unit, radio-frequency power amplifier, be used for received signal reception antenna module (comprising antenna and antenna-matching circuit), be used to send the transmitting antenna module and the bluetooth master chip of signal, wherein, switch unit links to each other with the bluetooth master chip, is used under the control of this bluetooth master chip above-mentioned transmitting antenna module and reception antenna module being switched; In addition, above-mentioned power amplifier is connected between transmitting antenna module and the switch unit, is used to amplify rf power signal.
This shows, pass through two independently reception and transmitting antenna, switch unit and radio-frequency power amplifiers in the present embodiment, bluetooth master chip in low power level can only one go on foot the raising transmitting power, can finish the function of bluetooth high power level chip.In addition because adopt to receive, the transmitting antenna independent design, therefore the and antenna-matching circuit of corresponding independent design can effectively improve the efficient and the respective radio-frequency performance of sending and receiving antenna.
Preferably, this blue-tooth device also comprises: bandpass filtering unit, this bandpass filtering unit are connected between above-mentioned the transmitting antenna module and radio-frequency power amplifier.For example, this bandpass filtering unit can comprise the bluetooth filter of two series connection, perhaps comprises a bluetooth filter.
Preferably, this blue-tooth device also comprises: equilibrate to the unbalanced transformation filter, this transformed filter is connected between switch unit and the bluetooth master chip.
Preferably, the bluetooth master chip of this blue-tooth device is the bluetooth master chip of grade Class 2; The transmission signal power of transmitting antenna reaches Class 1 through after the power amplifier.So just can use the transmitting power of the master chip realization Class 1 of Class 2.
Preferably, switch unit can be single-pole double-throw switch (SPDT), can certainly use other mode to realize the function of switch unit, but, use single-pole double-throw switch (SPDT) to realize than being easier to, wherein, above-mentioned bluetooth master chip is controlled this single-pole double-throw switch (SPDT) by switch controlling signal and is switched between above-mentioned transmitting antenna module and reception antenna module.
Realize that with the bluetooth master chip of Class 2 grades Class 1 grade is that example describes below.
Adopt a single master chip of bluetooth in the present embodiment with class 2 grades, this Bluetooth chip is integrated with bluetooth class 2 wireless transceivers, modulator-demodulator, baseband control unit, utilize time division duplex (the Time Division Duplex of bluetooth transmitting-receiving, abbreviate TDD as) characteristics, antenna works alone when having proposed to use double antenna to realize the sending and receiving signal, external class 1 power amplifier has been finished the realization of bluetooth class 1 grade simultaneously.Bluetooth master chip kind and producer's model of these class 2 grades are a lot, can select suitable chip according to the actual needs.
When sending signal, the low-power radio frequency signal that the bluetooth master chip sends through a radio-frequency power amplifier after, to class 1 grade, the signal after the amplification re-sends to the bluetooth transmitting antenna, is radiate by transmitting antenna with the radiofrequency signal power amplification; When in received signal, radiofrequency signal by another independently reception antenna receive signal, and by a switch controlling unit, make this reception antenna path and the conducting of master chip radio frequency interface, and disconnect the bluetooth master chip and launch being connected of path, make that the signal in the emission path does not influence the signal that receives in the path.On circuit was realized, a balance/imbalance converter filter (balun filter) directly linked to each other with bluetooth master chip radio frequency interface.The balun filter other end connects the hilted broadsword of a single-pole double-throw switch (SPDT), and this single-pole double-throw switch (SPDT) is spent the match circuit that connects the bluetooth reception antenna extravagantly and arrived reception antenna, has formed a receiving branch like this; Another throws the input that connects radio-frequency power amplifier single-pole double-throw switch (SPDT), and the output of radio frequency amplifier is received on the transmitting antenna by the match circuit of band pass filter, bluetooth transmitting antenna.When sending signal, master chip control single-pole double-throw switch (SPDT) is formed a transmit path with bluetooth master chip, balun filter, single-pole double-throw switch (SPDT), radio-frequency power amplifier, band pass filter, bluetooth transmitting antenna; When received signal, master chip control single-pole double-throw switch (SPDT) disconnects the power amplifier transmitting branch, and with bluetooth reception antenna, single-pole double-throw switch (SPDT), balun filter, RX path of bluetooth master chip composition, the bluetooth master chip that so just will have class 2 grades has been realized the transmitting-receiving of class 1 grade.Because sending and receiving antenna and match circuit thereof are done the independent design processing, can effectively improve corresponding efficient and other radio-frequency performances of sending and receiving antenna simultaneously.
Fig. 2 is the structured flowchart according to the blue-tooth device of the utility model preferred embodiment, as shown in Figure 2, the radio-frequency receiving-transmitting interface of bluetooth master chip 11 connects a balun filter cell 1, realizes that radiofrequency signal is in the balanced signal of master control sending and receiving end and antenna end, the conversion of unbalanced signal.The other end of Balun filter 1 connects the common port COM of single-pole double-throw switch (SPDT) 2, the switch direction of single-pole double-throw switch (SPDT) 2 is subjected to switch controlling signal 10 controls of bluetooth master chip 11, one end port1 of single-pole double-throw switch (SPDT) 2 is connected with reception antenna match circuit 3, and is connected on the reception antenna 4.The port2 of single-pole double-throw switch (SPDT) 2 links to each other with the signal input part of radio-frequency power amplifier 5.The power control end of radio-frequency power amplifier 5 links to each other with the bluetooth master chip, and is come the size of real-time control transmitted power according to the signal strength signal intensity needs by bluetooth master chip power control signal 6.The output of radio-frequency power amplifier 5 is received in the bandpass filtering unit 7, and the signal of bandpass filtering unit 7 outputs is connected in the transmitting antenna match circuit 8, and is connected on the transmitting antenna 9.
According to the TDD principle of bluetooth transmitting-receiving, when bluetooth master chip 11 sent signal, lower powered radiofrequency signal was sent by master chip, realized equilibrating to unbalanced conversion and playing filter function through balun filter cell 1 back.Bluetooth master chip (11) is controlled single-pole double-throw switch (SPDT) 2 simultaneously with common port COM and Port2 conducting, the transmission signal is input to via single-pole double-throw switch (SPDT) 2 and carries out the signal amplification in the radio-frequency power amplifier 5 like this, thereby signal power reaches the power requirement of bluetooth class1, bluetooth master chip (11) can reach sending the control of signal power according to the real-time gain of passing through power control signal 6 control power amplifiers 5 of the power needs of reality simultaneously.Through a bandpass filtering unit 7, be used for signals such as filtering unnecessary noise, harmonic wave by the transmission signal demand after radio-frequency power amplifier 5 amplifications.The transmission signal of bandpass filtering unit 7 outputs imports in the transmitting antenna 9 through transmitting antenna match circuit 8, is finally sent by transmitting antenna 9.When sending Bluetooth signal, bluetooth master chip 11, balun filter 1, single-pole double-throw switch (SPDT) 2, radio-frequency power amplifier 5, bandpass filtering unit 7, transmitting antenna match circuit 8, transmitting antenna 9 have just been formed the transmission path of bluetooth class 1 signal like this.
When bluetooth master chip 11 was in accepting state, bluetooth master chip 1 was controlled the COM and the Port1 conducting of single-pole double-throw switch (SPDT)s 2 by switch controlling signal 10, and disconnected COM and transmitting branch and master chip are isolated.The radiofrequency signal that receives of reception antenna 4 behind reception antenna match circuit 3, via the modem section that enters into bluetooth master chip 11 inside behind single-pole double-throw switch (SPDT) 2, the balun filter 1, has realized processing to received signal more like this.Reception antenna 4, reception antenna match circuit 3, single-pole double-throw switch (SPDT) 2, balun filter 1, bluetooth master chip 11 have just been formed the reception path of bluetooth class 1 signal like this.
Fig. 3 is the circuit theory diagrams according to the blue-tooth device of the utility model embodiment, and wherein, the switch controlling signal 10 of single-pole double-throw switch (SPDT) 2 is by two GPIO outputs of bluetooth master chip 11; Power control signal 6 is by a simulation pin output control of bluetooth master chip 11; Bandpass filtering unit 7 is composed in series by two bluetooth filters, to reach best filter effect.
Present embodiment utilizes the time division duplex principle of bluetooth transmitting-receiving, adopt two difference independently reception antenna and transmitting antenna and corresponding match circuit thereof, and external radio-frequency power amplifier, the mode that is aided with corresponding ON-OFF control circuit utilizes the bluetooth master chip of class2 bluetooth grade to realize the function of class1 bluetooth grade.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present utility model or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, carry out by calculation element thereby they can be stored in the storage device, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the utility model is not restricted to any specific hardware and software combination.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1. a blue-tooth device is characterized in that, comprising: switch unit, radio-frequency power amplifier, be used for received signal the reception antenna module, be used to send the transmitting antenna module and the bluetooth master chip of signal, wherein,
Described switch unit links to each other with described bluetooth master chip, is used under the control of described bluetooth master chip described transmitting antenna module and described reception antenna module being switched;
Described power amplifier is connected between described transmitting antenna module and the described switch unit, is used to amplify rf power signal.
2. blue-tooth device according to claim 1 is characterized in that, also comprises:
The bandpass filtering unit, described bandpass filtering unit is connected between described transmitting antenna module and the described radio-frequency power amplifier.
3. blue-tooth device according to claim 2 is characterized in that, described bandpass filtering unit comprises a bluetooth filter,
Perhaps, the bluetooth filter that comprises two series connection.
4. blue-tooth device according to claim 1 is characterized in that, also comprises:
Equilibrate to the unbalanced transformation filter, be connected between described switch unit and the described bluetooth master chip.
5. blue-tooth device according to claim 1 is characterized in that,
Described bluetooth master chip is the bluetooth master chip of bluetooth grade Class 2;
The transmission signal power of described transmitting antenna reaches bluetooth Class 1 through after the described power amplifier.
6. blue-tooth device according to claim 1 is characterized in that,
Described switch unit is a single-pole double-throw switch (SPDT), and described bluetooth master chip is controlled described single-pole double-throw switch (SPDT) by switch controlling signal and switched between described transmitting antenna module and described reception antenna module.
7. a terminal is characterized in that, comprises each described blue-tooth device among the claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206647794U CN201947260U (en) | 2010-12-16 | 2010-12-16 | Bluetooth device and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206647794U CN201947260U (en) | 2010-12-16 | 2010-12-16 | Bluetooth device and terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201947260U true CN201947260U (en) | 2011-08-24 |
Family
ID=44474595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206647794U Expired - Fee Related CN201947260U (en) | 2010-12-16 | 2010-12-16 | Bluetooth device and terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201947260U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723962A (en) * | 2012-05-17 | 2012-10-10 | 邹伟 | Bluetooth to 433M/315M wireless communication interface module |
| CN104901725A (en) * | 2015-05-19 | 2015-09-09 | 西安海导信息技术有限公司 | Signal transmission device, positioner, signal transmission system and signal transmission method |
| CN106100685A (en) * | 2016-08-24 | 2016-11-09 | 深圳市蓝科迅通科技有限公司 | A kind of power switching device based on low-power consumption Bluetooth technology |
| CN107592628A (en) * | 2016-07-08 | 2018-01-16 | 中国电信股份有限公司 | For the method for switching working mode, Bluetooth gateway and system |
| CN108964693A (en) * | 2018-06-14 | 2018-12-07 | 苏州工业园区职业技术学院 | A kind of wireless data transmission device and control method of power adjustable |
| WO2020030150A1 (en) * | 2018-08-10 | 2020-02-13 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Electronic device, method for transmitting message, and related products |
| CN111935683A (en) * | 2020-07-15 | 2020-11-13 | 广东科徕尼智能科技有限公司 | Bluetooth equipment terminal, signal expansion transmission method and storage medium |
| US11438643B2 (en) | 2018-08-14 | 2022-09-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal, method for voice control, and related products |
-
2010
- 2010-12-16 CN CN2010206647794U patent/CN201947260U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723962A (en) * | 2012-05-17 | 2012-10-10 | 邹伟 | Bluetooth to 433M/315M wireless communication interface module |
| CN104901725A (en) * | 2015-05-19 | 2015-09-09 | 西安海导信息技术有限公司 | Signal transmission device, positioner, signal transmission system and signal transmission method |
| CN107592628A (en) * | 2016-07-08 | 2018-01-16 | 中国电信股份有限公司 | For the method for switching working mode, Bluetooth gateway and system |
| CN106100685A (en) * | 2016-08-24 | 2016-11-09 | 深圳市蓝科迅通科技有限公司 | A kind of power switching device based on low-power consumption Bluetooth technology |
| CN106100685B (en) * | 2016-08-24 | 2020-01-14 | 深圳市蓝科迅通科技有限公司 | Power switching device based on low-power-consumption Bluetooth technology |
| CN108964693A (en) * | 2018-06-14 | 2018-12-07 | 苏州工业园区职业技术学院 | A kind of wireless data transmission device and control method of power adjustable |
| WO2020030150A1 (en) * | 2018-08-10 | 2020-02-13 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Electronic device, method for transmitting message, and related products |
| US11044678B2 (en) | 2018-08-10 | 2021-06-22 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Electronic device, method for transmitting message, and related products |
| US11438643B2 (en) | 2018-08-14 | 2022-09-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal, method for voice control, and related products |
| CN111935683A (en) * | 2020-07-15 | 2020-11-13 | 广东科徕尼智能科技有限公司 | Bluetooth equipment terminal, signal expansion transmission method and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201947260U (en) | Bluetooth device and terminal | |
| CN104124929B (en) | Device and method for the envelope shaping in power amplifier system | |
| CN105075143B (en) | A kind of antenna switching system and method | |
| CN103236868B (en) | Signal transmitting and receiving module and mobile communication terminal | |
| CN105656610A (en) | Radio frequency circuit and terminal for realizing carrier aggregation | |
| CN101442330B (en) | Radio frequency circuit and CDMA mobile terminal | |
| CN204272108U (en) | A kind ofly can support the communicator of ultrashort wave relaying with short-wave radio set intercommunication | |
| CN101741441A (en) | Wireless terminal and antenna switching control method and device | |
| CN106487415A (en) | A kind of RF front-end circuit and communication terminal | |
| CN103428829B (en) | A kind of method optimizing communication terminal power consumption and a kind of communication terminal | |
| CN102420634A (en) | Wireless communication transmitting and receiving system | |
| CN103546188A (en) | Wireless mobile terminal of self-tuning antenna and adjusting method of self-tuning antenna | |
| CN203632660U (en) | Radiofrequency front circuit and system | |
| CN104468069A (en) | TDD/FDD dual-mode reconfigurable wireless communication system and communication method | |
| CN102684864A (en) | Mobile communication terminal | |
| CN102510582B (en) | Multi-mode radio frequency emits processing chip and multimode terminal | |
| CN110504986A (en) | Transceiver insulation circuit, TDD wireless transceiver circuit and base station | |
| CN208444011U (en) | The miniature navigational communications module of compatible Integrated Service Digital Network antenna | |
| CN206620115U (en) | Mobile terminal and its control circuit for improving TDD segment sensitive degree | |
| CN203289430U (en) | Miniature broadband data transmission transmitting-receiving all-in-one machine | |
| CN105099481A (en) | Radio frequency transmit-receive method and system | |
| CN204615817U (en) | A kind of micro power radio module | |
| CN104518812A (en) | Mobile terminal switching antenna and switching method thereof | |
| CN204634050U (en) | Light signal access type LTE quorum sensing inhibitor system | |
| CN207427099U (en) | A kind of L-band ultra wide band receives and dispatches amplifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20161216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |