CN100559723C - Receiver module and the receiving element that uses this receiver module - Google Patents
Receiver module and the receiving element that uses this receiver module Download PDFInfo
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- CN100559723C CN100559723C CNB200680000932XA CN200680000932A CN100559723C CN 100559723 C CN100559723 C CN 100559723C CN B200680000932X A CNB200680000932X A CN B200680000932XA CN 200680000932 A CN200680000932 A CN 200680000932A CN 100559723 C CN100559723 C CN 100559723C
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Abstract
The signal that demodulation section (8) in the receiver module of the present invention (3) will produce based on the detected signal level of first test section (22) is adjusted signal as amplification degree and is offered second enlarging section (16).Thereby when operating, the AGC voltage that offers second enlarging section (16) is near final stable certain value since second acceptance division (7).Therefore the AGC voltage that offers second enlarging section (16) near the value stabilizationization of this certain value to certain value.Therefore, since second acceptance division (7) operation, finally converge to time shortening till the certain value to the AGC voltage that offers second enlarging section (16).
Description
Technical field
The receiving element that the present invention relates to the receiver module of received signal and use this receiver module.
Background technology
Below with reference to Fig. 4 existing receiver module is described.
Fig. 4 is the block diagram of existing receiving element.Among Fig. 4, receiver module 103 comprises first acceptance division 106 and second acceptance division 107 that carries out diversity reception, the demodulation section 108 that is connected with the outlet side of this first acceptance division 106 and second acceptance division 107 and is made of demodulation LSI etc.Demodulation section 108 comprises that detection is from first test section 122 of the level of the signal of first acceptance division 106 with detect second test section 129 from the level of the signal of second acceptance division 107.First acceptance division 106 further comprises first enlarging section 112, and it is used for AGC (the Automatic Gain Control) voltage that generates based on by first test section, 122 detected level, amplifies the signal that receives.Second acceptance division 107 further comprises second enlarging section 116, and it is used for the AGC voltage that generates based on by second test section, 129 detected level, amplifies the signal that receives.
Open the 2004-274603 communique as for example known spy of prior art document related to the present invention herein.
Existing receiver module 103 is only by the state of the single reception (non-diversity reception) of first acceptance division, 106 received signals, when switching to the state by the diversity reception of first acceptance division 106 and second acceptance division, 107 received signals, and when the difference of the initial value of AGC voltage and convergency value is bigger, since 107 operations of second acceptance division, finally converge to certain value to the AGC voltage that offers second enlarging section 116, need for example 100 milliseconds the long time.
Summary of the invention
The present invention solves the above problems, will be since second acceptance division operation, finally converge to time shortening till the certain value to the AGC voltage that offers second enlarging section.
Therefore, the demodulation section in the receiver module of the present invention will offer second enlarging section as amplification degree adjustment signal based on the signal by the detected signal level of first test section provides.
Thereby when second acceptance division began to operate, the AGC voltage that offers second enlarging section was more approaching with final stable certain value.The AGC voltage that offers second enlarging section near the value stabilizationization of should be final stable certain value to certain value.Therefore, since second acceptance division operation, finally converge to time shortening till the certain value to the AGC voltage that offers second enlarging section.
Description of drawings
Fig. 1 is the block diagram of receiving element in the embodiment of the invention 1.
Fig. 2 is the block diagram of receiving element in the embodiment of the invention 2.
Fig. 3 is the block diagram of another receiving element in the embodiment of the invention 2.
Fig. 4 is the block diagram of existing receiving element.
Description of reference numerals
1 first antenna
2 second antennas
3 receiver modules
4 signal processing parts
5 display parts
6 first acceptance divisions
7 second acceptance divisions
8 demodulation sections
Embodiment
(embodiment 1)
Below with reference to Fig. 1 the embodiment of the invention 1 is described.Fig. 1 is the block diagram of the receiving element of the embodiment of the invention 1.Among Fig. 1, receiving element comprises first antenna 1, second antenna 2, the receiver module 3 that is connected with the outlet side of first antenna 1 and second antenna 2, the signal processing part 4 that is connected with the outlet side of this receiver module 3, and the display part 5 that is connected with the outlet side of this signal processing part 4.
Second acceptance division 7 is same as described above, receives the signal from the outside that is obtained by second antenna 2.This second acceptance division 7 is same as described above, comprises second input filter (not shown), 13, the second local oscillating portion 14, the second mixing portions, 15, the second frequency band limits filters (not shown) and second enlarging sections 16, the second high frequency enlarging section.This second enlarging section 16 is also same as described above, based on the AGC voltage that demodulation section 8 provides, determines the amplification degree from the signal of the second frequency band limits filter.
Herein, first acceptance division 6 and second acceptance division 7 are undertaken by the wherein single reception of any one by diversity control part 17 control, or by two diversity reception.
Herein, constitute an AGC handling part 34 by first test section 22, first loop filter 23, first converter section 24 and a DA converter section 25, constitute the 2nd AGC handling part 35 by second test section 30, second loop filter 31, second converter section 32 and the 2nd DA converter section 33.
Further, demodulation section 8 comprises that branch assembles portion 36, under the diversity reception state, its in order to synthetic from the first demodulation process portion 21 signal and from the signal of the second demodulation process portion 29.Demodulation section 8 comprises diversity control part 17, and it assembles portion 36, first acceptance division 6 and second acceptance division 7 in order to the control branch, and carries out switching between single accepting state and diversity reception state.Demodulation section 8 comprises BER measurement section 37, and it is in order to judge the size that for example assembles the B.E.R. (Bit ErrorRate) of portion's 36 outputs from branch.The size of the BER that diversity control part 17 provides based on this BER measurement section 37, the accepting state of decision receiver module 3 is for single accepting state still is the diversity reception state.
Below, the operation of receiver module 3 is described.
As A-stage, suppose that receiver module 3 is only by the situation of first acceptance division, 6 receptions from the single accepting state of the signal of outside.Only by the single accepting state of first acceptance division 6 time, under the situation of value greater than predetermined value of measuring by BER measurement section 37 from the signal BER of first acceptance division 6, diversity control part 17 switches to the diversity reception state with receiver module 3 from single accepting state.
At this moment, diversity control part 17 drives first acceptance division 6 and second acceptance divisions 7, simultaneously, makes branchs assemble portion 36 and synthesizes from the signal of the first demodulation process portion 21 with from the signal of the second demodulation process portion 29.Diversity control part 17 makes switch portion 38 adjust signal as amplification degree from the AGC magnitude of voltage of first converter section 24 and offers the 2nd DA converter section 33.
Under receiver module 3 was arranged at situation in the little receiving element such as mobile phone, first antenna 1 and second antenna 2 were provided with in approximating position, and the AGC voltage that therefore offers first acceptance division 6 is similar substantially with the AGC voltage that offers second acceptance division 7.In the case, by above-mentioned formation, when second acceptance division 7 began to operate, the AGC voltage that offers second enlarging section 16 was approaching with final stable certain value.Therefore the AGC voltage that offers second enlarging section 16 near the value stabilizationization of final stable certain value to certain value.Its result is, since 7 operations of second acceptance division, the time that finally converges to till the certain value to the AGC voltage that offers second enlarging section 16 can shorten.In addition, acceptance division 7 begins operation, can be for to acceptance division 7 supply powers time, when also can be set at preset frequency for the local oscillation signal from local oscillation portion 14.
(embodiment 2)
Followingly receiver module in the present embodiment 2 is described and uses the receiving element of this receiver module with reference to Fig. 2.Do not do the identical of special instruction herein, with embodiment 1.
Under the square one, there be not the transfer characteristic situation yet different with the transfer characteristic of second converter section 32 of first converter section 24 in the characteristic of the characteristic of first acceptance division 6 and second acceptance division 7.Therefore, by with will offer the 2nd AGC handling part 35 by the AGC magnitude of voltage after the conversion of first converter section 24 and compare, will by before the conversion of first converter section 24, the detected signal level of first test section directly offers the 2nd AGC handling part 35, the AGC voltage that offers second enlarging section 16 more approaches final stable certain value.Its result is, since 7 operations of second acceptance division, the time that finally converges to till the certain value to the AGC voltage that offers second enlarging section 16 can shorten more.
And, if under the situation about only being provided at short notice by first test section, 22 detected signal levels of an AGC handling part 34 to the 2nd AGC handling parts 35, the AGC voltage that offers second enlarging section 16 might be subjected to the influence from the unstable signal of second test section 30.For preventing such situation, preferred switch portion 39 will offer the 2nd AGC handling part 35 by first test section, 22 detected signal levels in the scheduled time that second acceptance division 7 is operated.Thereby the AGC voltage that can reduce to offer second enlarging section 16 is subjected to the possibility from the influence of the unstable signal of second test section 30.Its result is that since 7 operations of second acceptance division, the time that finally converges to certain value to the AGC voltage that offers second enlarging section 16 can more positively be shortened.
Further, switch portion 39 is the scheduled time before second acceptance division 7 switches to operation from not operation only, first test section, 22 detected signal levels is offered the 2nd AGC handling part 35 also be fine.Thereby, when 7 operations of second acceptance division, because first test section, 22 detected signal levels have offered the 2nd AGC handling part 35, so the time loss that produces can reduce switch portion 39 and will offer the 2nd AGC handling part 35 time by first test section, 22 detected signal levels.Its result is, since 7 operations of second acceptance division, finally converge to certain value to the AGC voltage that offers second enlarging section 16 till the time can shorten.
In addition, be arranged at receiver module 3 under the situation of less receiving element such as mobile phone, first antenna 1 and second antenna, 2 positions close to each other are provided with, and therefore the variation of first test section, 22 detected signal levels is similar substantially to the variation of second test section, 30 detected signal levels.Therefore, switch portion 39 is preferably at the fixed time according to the variation of first test section, 22 detected signal levels, and the signal level of this variation is offered the 2nd AGC handling part 35.Thereby since 7 operations of second acceptance division, the time that finally converges to certain value to the AGC voltage that offers second enlarging section 16 can shorten more.
And switch portion 39 can add first test section, 22 detected signal levels that the signal level of predetermined deviant offers the 2nd AGC handling part 35 as amplification degree adjustment signal.If will directly offer the 2nd AGC handling part 35 by first test section, 22 detected signal levels, the amplification degree of pairing second enlarging section 16 of signal level that may be received by second antenna 2 becomes not enough.Its result, in this case, the amplitude level that offers the 2nd AD converter section diminishes, the receiving feature deterioration.But, add that by level the signal level of deviant offers second enlarging section 16 with first test section, 22 detected signals, can reduce the possibility of the deterioration in characteristics of the signal of exporting from second enlarging section 16.
And, the optimum value of this deviant according to multipath reception with the reception environment that move to receive etc. and different, therefore by can reasonably controlling from the suitable value of external setting-up.For example, electronic controller (electronic volume control) (not shown) is set in second enlarging section 16, and will can be installed in the receiving element of the present invention in order to the terminal of controlling this electronic controller.As required, this terminal can be connected with computer, can set optimal side-play amount.
And, under the different situation of the directive property of two antennas, because according to reception environment coefficient correlation difference, therefore, by can realizing suitable control from the threshold value of external setting-up coefficient correlation.For example, can be in receiving element of the present invention the built-in electronic controller (not shown) of giving the threshold value of this coefficient correlation.And the terminal that will control this electronic controller is arranged at receiving element of the present invention.If necessary, this terminal can be connected with computer, can set the threshold value of optimal coefficient correlation.
In addition, as shown in Figure 3, switch portion 40 also can be arranged at the outside that demodulation LSI is a demodulation section 8.For example, the switch portion 40 of analogue type is arranged on the outlet side of a DA converter section 25, and is connected in the input side of second enlarging section 16.
Industrial usability
Receiver module of the present invention can will switch in short-term to the diversity reception state from single accepting state Between in successfully carry out, can be used in mobile phone etc.
Claims (10)
1. receiver module comprises:
Carry out first acceptance division and second acceptance division of diversity reception,
Detection is from first test section of the level of the signal of described first acceptance division,
Detection is from second test section of the level of the signal of described second acceptance division,
To from the conversion of signals of described first test section first converter section of AGC magnitude of voltage,
To from the conversion of signals of described second test section second converter section of AGC magnitude of voltage, and,
Switch portion,
Wherein said first acceptance division has first enlarging section of the signal that receives being amplified based on the AGC magnitude of voltage from described first converter section,
Wherein said second acceptance division has second enlarging section of the signal that receives being amplified based on the AGC magnitude of voltage from described second converter section,
By described switch portion, the signal that produces based on the detected level of described first test section is adjusted signal as amplification degree and is provided for described second enlarging section at the fixed time.
2. receiver module comprises:
Carry out first acceptance division and second acceptance division of diversity reception,
The demodulation section that is connected with the outlet side of described first acceptance division and described second acceptance division, and
Switch portion,
Wherein said demodulation section comprises first test section of detection from the level of the signal of described first acceptance division, detection is from second test section of the level of the signal of described second acceptance division, to from the conversion of signals of described first test section first converter section of AGC magnitude of voltage, with will be second converter section of AGC magnitude of voltage from the conversion of signals of described second test section
Wherein said first acceptance division has first enlarging section of the signal that receives being amplified based on the AGC magnitude of voltage from described first converter section,
Wherein said second acceptance division has second enlarging section of the signal that receives being amplified based on the AGC magnitude of voltage from described second converter section,
Wherein said demodulation section, by described switch portion, the signal that will produce based on the detected level of described first test section is adjusted signal as amplification degree and is offered described second enlarging section at the fixed time.
3. receiver module according to claim 2,
Wherein said demodulation section will offer described second converter section based on the signal that is produced by the detected level of described first test section before described first converter section conversion.
4. receiver module according to claim 2,
The wherein said scheduled time is, from the time that described second acceptance division begins to operate.
5. receiver module according to claim 2,
The wherein said scheduled time is that described second acceptance division switches to the operation time before from not operation.
6. receiver module according to claim 1 and 2,
Wherein the signal that produces based on described level is that the detected level of described first test section adds the signal of predetermined side-play amount.
7. receiver module according to claim 6,
Wherein said side-play amount is from external setting-up.
8. receiver module according to claim 2 comprises:
The level coefficient correlation is calculated portion, is used to calculate the coefficient correlation between the level of the level of the detected signal of described first test section and the detected signal of described second test section,
Wherein calculating the coefficient correlation of calculating in the portion when described level coefficient correlation is under the above situation of predetermined threshold value, and the signal that described demodulation section will produce based on the detected level of described first test section is adjusted signal as amplification degree and offered described second enlarging section.
9. receiver module according to claim 8,
The threshold value of wherein said coefficient correlation is from external setting-up.
10. receiving element comprises:
First antenna,
Second antenna,
First acceptance division that carries out diversity reception that is connected with described first antenna,
Second acceptance division that carries out diversity reception that is connected with described second antenna,
The demodulation section that is connected with the outlet side of described first acceptance division and described second acceptance division,
Switch portion,
The signal processing part that is connected with the outlet side of described demodulation section and
The display part that is connected with the outlet side of described signal processing part,
Wherein said demodulation section comprises first test section of detection from the level of the signal of described first acceptance division, detection is from second test section of the level of the signal of described second acceptance division, to from the conversion of signals of described first test section first converter section of AGC magnitude of voltage, with will be second converter section of AGC magnitude of voltage from the conversion of signals of described second test section
Wherein said first acceptance division has first enlarging section of the signal that receives being amplified based on the AGC magnitude of voltage from described first converter section,
Wherein said second acceptance division has second enlarging section of the signal that receives being amplified based on the AGC magnitude of voltage from described second converter section,
Described demodulation section, by described switch portion, the signal that will produce based on the detected level of described first test section is adjusted signal as amplification degree and is offered described second enlarging section at the fixed time.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005171984A JP4735064B2 (en) | 2005-06-13 | 2005-06-13 | Tuner receiver and digital signal receiver using the same |
JP171984/2005 | 2005-06-13 | ||
JP236271/2005 | 2005-08-17 |
Publications (2)
Publication Number | Publication Date |
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CN101032087A CN101032087A (en) | 2007-09-05 |
CN100559723C true CN100559723C (en) | 2009-11-11 |
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CNB200680000932XA Expired - Fee Related CN100559723C (en) | 2005-06-13 | 2006-06-05 | Receiver module and the receiving element that uses this receiver module |
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JP (1) | JP4735064B2 (en) |
CN (1) | CN100559723C (en) |
Families Citing this family (1)
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CN102132492B (en) * | 2008-08-28 | 2014-07-30 | 松下电器产业株式会社 | Synthesizer and reception device and electronic device using same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3082703B2 (en) * | 1997-05-12 | 2000-08-28 | 日本電気株式会社 | Diversity receiver |
JP3602974B2 (en) * | 1998-11-10 | 2004-12-15 | 富士通株式会社 | Diversity receiving apparatus and method |
JP2005278017A (en) * | 2004-03-26 | 2005-10-06 | Toshiba Corp | Radio communication device |
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2005
- 2005-06-13 JP JP2005171984A patent/JP4735064B2/en not_active Expired - Fee Related
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2006
- 2006-06-05 CN CNB200680000932XA patent/CN100559723C/en not_active Expired - Fee Related
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JP2006352210A (en) | 2006-12-28 |
CN101032087A (en) | 2007-09-05 |
JP4735064B2 (en) | 2011-07-27 |
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