CN201266374Y - Device for implementing unit conversion - Google Patents

Device for implementing unit conversion Download PDF

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Publication number
CN201266374Y
CN201266374Y CNU2008201312053U CN200820131205U CN201266374Y CN 201266374 Y CN201266374 Y CN 201266374Y CN U2008201312053 U CNU2008201312053 U CN U2008201312053U CN 200820131205 U CN200820131205 U CN 200820131205U CN 201266374 Y CN201266374 Y CN 201266374Y
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output
module
audio
unit
digital signals
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CNU2008201312053U
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Chinese (zh)
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廖华彬
熊佑军
肖宇
陈炎华
王丽华
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BYD Co Ltd
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BYD Co Ltd
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Abstract

The utility model discloses a device realizing unit conversion. The device realizing unit conversion comprises an audio pre-processing circuit, an audio signal processor, a system control circuit, a voice control circuit, a unit conversion module, and a result output circuit, wherein, the audio pre-processing circuit, the audio signal processor, the system control circuit and the voice control circuit can realize the voice input function, extract the number value of a physical quantity to be conversed which is needed by the unit conversion from an input voice as well as the units before and after the conversion, and output the number value to a unit conversion module to carry out conversion. Compared with the existing mode of employing a keyboard to input, the input speed is improved and input error can be avoided.

Description

A kind of device of realizing unit conversion
Technical field
The utility model relates to control technology, particularly a kind of device and a kind of mobile phone of realizing unit conversion of realizing unit conversion.
Background technology
Along with the use of mobile phone is day by day popularized, the function of mobile phone also is not limited only to conversation.Usually all can carry the unit conversion module in the existing mobile phone, be used to realize for example unit conversion of all kinds physical quantitys such as area, energy, length, power, pressure, temperature, time, speed, volume.
When needs use mobile phone that the unit of certain physical quantity is realized unit conversion, unit conversion module in can first calling mobile phone, then the numerical value, this concrete numerical value of importing this physical quantity by cell phone keyboard before conversion unit and the unit after the conversion, show this physical quantity numerical value after converting by display screen with text mode again.
Above-mentioned input process need be pressed a plurality of buttons in the cell phone keyboard one by one, thereby makes that input speed is slow and input error takes place easily.
The utility model content
In view of this, the utility model provides a kind of device and a kind of mobile phone of realizing unit conversion of realizing unit conversion, can improve the required information input speed of unit conversion.
A kind of device of realizing unit conversion that the utility model provides comprises: audio frequency pre-process circuit, audio signal processor, system, control circuit, voice control circuit, unit conversion module, output circuit as a result, wherein,
The audio frequency pre-process circuit produces first analog voice signal according to the phonetic order of outside, and output is carried out pretreated first audio digital signals of audio frequency to first analog voice signal; Wherein, comprise in the described phonetic order numerical value of the physical quantity of waiting to convert, the unit before converting and convert after unit;
Audio signal processor receives first audio digital signals of exporting after audio frequency pre-process circuit Audio Processing, first audio digital signals after output signal under the control of system, control circuit is handled; Receive second audio digital signals of voice control circuit output, and under the control of system, control circuit, second audio digital signals of output after signal Processing;
Voice control circuit receives first audio digital signals of exporting after the audio signal processor signal Processing, the written order that output is converted to by this first audio digital signals comprises before wait to convert physical quantity numerical value and the conversion and the back unit that converts in this written order; Physical quantity numerical value after the conversion of recruiting unit conversion module output, and produce second audio digital signals output that comprises the physical quantity numerical value after the conversion;
The unit conversion module receives the written order of voice control circuit output, and according to treating in this written order convert physical quantity numerical value, convert before and the back unit that converts, the physical quantity numerical value after output converts;
Output circuit receives second audio digital signals and the output of exporting after the audio signal processor signal Processing as a result.
Described audio frequency pre-process circuit comprises:
The voice receiving-member is converted to first analog voice signal and output according to the phonetic order of described outside;
The speech signal collection module is sampled to first analog voice signal of voice receiving-member output and is exported according to default sample frequency;
The noise processed module is carried out noise reduction process and output to first analog voice signal after the sampling of speech signal collection module output;
The voice amplification module amplifies first analog voice signal behind the noise reduction of noise processed module output and output;
Analog/digital A/D modular converter is converted to first audio digital signals and output with first analog voice signal after the amplification of voice amplification module output.
Described voice receiving-member is a microphone.
Described output circuit as a result comprises:
Digital-to-analog D/A modular converter is converted to second analog voice signal and output with second audio digital signals;
The audio frequency amplification module is with second analog voice signal amplification back output of D/A modular converter output;
The voice output parts are exported second analog voice signal after the amplification of audio frequency amplification module output by voice mode.
Described voice output parts are loudspeaker.
Described output circuit as a result further comprises:
The text results display module, the physical quantity numerical value after the conversion of recruiting unit's conversion module output, and by text mode demonstration output.
Described text results display module is a LCDs.
Described voice control circuit comprises:
Sound identification module receives first audio digital signals of exporting, and exports the described written order that is converted to by first audio digital signals to the unit conversion module after the audio signal processor signal Processing;
The voice output module, the physical quantity numerical value after the conversion of recruiting unit conversion module output, and produce described second audio digital signals that comprises the physical quantity numerical value after the conversion and export audio signal processor to.
Described sound identification module comprises:
Identification pre-service submodule receives first audio digital signals of exporting after the pre-service of audio signal processor audio frequency, and pretreated first audio digital signals of output speech recognition;
The voice template library stores the various voice masterplates that training in advance obtains;
The feature extraction submodule receives pretreated first audio digital signals of identification of identification pre-service submodule output, and the described written order that obtains after utilizing described voice masterplate to the described first audio digital signals analysis of output;
The distortion measure parameter library stores the distortion measure parameter that sets in advance;
Estimate the estimator module, receive the described written order of feature extraction submodule output, and output utilizes the described written order after described distortion measure parameter is carried out the distortion measure estimation;
The syntax rule storehouse stores various syntax rules;
Judge the recognin module, the written order after the estimation estimated of estimator module output is estimated in reception, and output according to the expression that identification extraction goes out from this written order of described syntax rule wait to convert physical quantity numerical value, convert before the command field of unit and the back unit that converts to described unit conversion module.
Described unit conversion module comprises:
Unit index chooser module, receive to judge the output of recognin module wait convert physical quantity convert before and convert after unit, and search convert before and convert after corresponding respectively index and the output of unit;
Index combination matched sub-block, this index combination exported in the corresponding respectively index of unit before the conversion of recruiting unit's index chooser module output and after converting when the combinations matches of the index that receives;
Operation relation chooser module, the index combination of reception hint combinations matches submodule output, and the index that output receives makes up pairing operation relation;
Digital format conversion submodule receives the physical quantity numerical value that converts of waiting of judging the output of recognin module, and exports after the numerical value that receives is converted to the coupling form;
Conversion operator module, receive the operation relation of operation relation chooser module output and the physical quantity numerical value that converts of waiting that numeric type is changed submodule output, and waiting of the receiving physical quantity numerical value that converts is converted this physical quantity numerical value after output converts according to the operation relation that receives.
A kind of mobile phone of realizing unit conversion that the utility model provides comprises: audio frequency pre-process circuit, audio signal processor, system, control circuit, voice control circuit, unit conversion module, output circuit as a result, wherein,
The audio frequency pre-process circuit produces first analog voice signal according to the phonetic order of outside, and output is carried out pretreated first audio digital signals of audio frequency to first analog voice signal; Wherein, comprise in the described phonetic order numerical value of the physical quantity of waiting to convert, the unit before converting and convert after unit;
Audio signal processor receives first audio digital signals of exporting after audio frequency pre-process circuit Audio Processing, first audio digital signals after output signal under the control of system, control circuit is handled; Receive second audio digital signals of voice control circuit output, and under the control of system, control circuit, second audio digital signals of output after signal Processing;
Voice control circuit receives first audio digital signals of exporting after the audio signal processor signal Processing, the written order that output is converted to by this first audio digital signals comprises before wait to convert physical quantity numerical value and the conversion and the back unit that converts in this written order; Physical quantity numerical value after the conversion of recruiting unit conversion module output, and produce second audio digital signals output that comprises the physical quantity numerical value after the conversion;
The unit conversion module receives the written order of voice control circuit output, and according to treating in this written order convert physical quantity numerical value, convert before and the back unit that converts, the physical quantity numerical value after output converts;
Output circuit receives second audio digital signals and the output of exporting after the audio signal processor signal Processing as a result.
As seen from the above technical solution, realize the device of unit conversion in the utility model, comprise audio frequency pre-process circuit, audio signal processor, system, control circuit, voice control circuit, unit conversion module, output circuit as a result.Wherein, audio frequency pre-process circuit, audio signal processor, system, control circuit, voice control circuit can be realized speech voice input function, from the input voice extract required the waiting of unit conversion convert physical quantity numerical value, the conversion before and the conversion after unit, and export the unit conversion module to and convert, than the existing mode of utilizing the keyboard input, improved input speed and can avoid input error.
Further, output circuit can be by voice and this dual mode output conversion of text result as a result.
Description of drawings
Fig. 1 is an apparatus structure synoptic diagram of realizing unit conversion in the utility model.
Fig. 2 is as shown in Figure 1 a sound identification module structural representation in the utility model.
Fig. 3 is as shown in Figure 1 a unit conversion modular structure synoptic diagram in the utility model.
Fig. 4 is the workflow diagram of sound identification module and unit conversion module in the utility model.
Numbering explanation in the accompanying drawing:
1 voice pre-process circuit, 11 microphones (MIC)
12 speech signal collection modules, 13 noise processed modules
14 audio frequency amplification modules, 15 analog/digitals (A/D) modular converter
2 audio signal processors
3 system, control circuits, 31 bottom layer driving modules
32 system control modules
4 voice control circuits, 41 sound identification modules
411 identification pre-service submodules, 412 voice template libraries
413 feature extraction submodules, 414 distortion measure parameter libraries
415 estimate estimator module 416 syntax rule storehouses
417 judge recognin module 42 voice output modules
5 unit conversion modules, 51 unit index chooser modules
52 index combination matched sub-block, 53 operation relation chooser modules
54 digital formats conversion submodule, 55 conversion operator modules
6 output circuit 61 text results display modules as a result
62 digital-to-analogs (D/A) modular converter, 63 audio frequency amplification modules
64 loudspeakers
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
Fig. 1 is an apparatus structure synoptic diagram of realizing unit conversion in the utility model.As shown in fig. 1, the device of realizing unit conversion in the utility model comprises: audio frequency pre-process circuit 1, audio signal processor 2, system, control circuit 3, voice control circuit 4, unit conversion module 5, output circuit 6 as a result.
Audio frequency pre-process circuit 1 produces first analog voice signal according to the phonetic order of outside, and output is carried out pretreated first audio digital signals of audio frequency to first analog voice signal.Wherein, all comprise in external voice instruction, first analog voice signal and first audio digital signals and wait the convert numerical value of physical quantity, the unit after convert preceding unit and the conversion.
Audio signal processor 2 receives first audio digital signals of exporting after the 1 audio frequency pre-service of audio frequency pre-process circuit, and under the control of system, control circuit 3, first audio digital signals that receives decoded etc. exports voice control circuit 4 to after the signal Processing.
Voice control circuit 4 receives first audio digital signals of exporting after audio signal processor 2 signal Processing, and first audio digital signals that will receive be converted to comprise wait to convert physical quantity numerical value and convert before and the written order of the back unit that converts export unit conversion module 5 to.
Unit conversion module 5 according to the conversion in the written order of voice control circuit 4 output before and the back unit that converts, the convert numerical value of physical quantity for the treatment of in this written order is converted, and the physical quantity numerical value of output after converting.
Physical quantity numerical value after the conversion of voice control circuit 4 recruiting unit conversion module 5 output, and produce second audio digital signals that comprises the physical quantity numerical value after the conversion and export audio signal processor 2 to.
Audio signal processor 2 receives second audio digital signals of voice control circuits 4 outputs, and under the control of system, control circuit 3, second audio digital signals that receives decoded etc. exports output circuit 6 as a result to after the signal Processing.
Output circuit 6 receives second audio digital signals of exporting after audio signal processor 2 signal Processing as a result, after second audio digital signals is converted to second analog voice signal and amplifies, exports by voice mode.Wherein, all comprise physical quantity numerical value after the conversion in second audio digital signals and second analog voice signal.
In Fig. 1, above-mentioned audio frequency pre-process circuit 1 specifically comprises:
MIC 11 is as the voice receiving-member, is converted to first analog voice signal and output according to the phonetic order of outside;
Speech signal collection module 12 is sampled to first analog voice signal of MIC 11 outputs and is exported according to default sample frequency;
Noise processed module 13 is carried out noise reduction process and output to first analog voice signal after the sampling of speech signal collection module 12 outputs;
Voice amplification module 14 amplifies first analog voice signal after the noise reduction process of noise processed module 13 outputs and output;
A/D modular converter 15 is converted to first audio digital signals and output with first analog voice signal after the amplification of voice amplification module 14 outputs.
In the practical application, the concrete structure of audio frequency pre-process circuit 1 also can adopt existing other modes to realize, gives unnecessary details no longer one by one at this.
In Fig. 1, said system control circuit 3 comprises bottom layer driving module 31 and system control module 32, audio signal processor 2 based on and bottom layer driving module 31 in mutual operation between the bsp driver of carrying, and carry out signal Processing according to the steering orders of obtaining alternately with system control module 32.
In the practical application, if unit conversion device as shown in Figure 1 is integrated in any existing mobile phone or other mobile devices, then system, control circuit 3 can be the existing system control circuit in this mobile phone or the mobile device, gives unnecessary details no longer in detail at this.
In Fig. 1, above-mentioned voice control circuit 4 specifically comprises:
Sound identification module 41, reception is handled first audio digital signals of back output through audio signal processor 2, and first audio digital signals that will receive be converted to comprise wait to convert physical quantity numerical value and convert before and convert after the written order of unit export unit conversion module 5 to;
Voice output module 42, the physical quantity numerical value after the conversion of recruiting unit's conversion module 5 output, and the physical quantity numerical value after will converting is converted to second audio digital signals and exports audio signal processor 2 to.
In Fig. 1, The above results output circuit 6 specifically comprises:
D/A modular converter 62 will be converted to second analog voice signal and output by second audio digital signals after audio signal processor 2 digital processings;
Audio frequency amplification module 63 is with second analog voice signal amplification back output of D/A modular converter 62 outputs;
Loudspeaker 64 amplifies audio frequency amplification module 63 second analog voice signal of back output and exports by voice mode as the voice output parts.
Certainly, can also comprise the unit after the conversion in the second above-mentioned audio digital signals and second analog voice signal, so that loudspeaker 64 when exporting by voice mode, can make that the information that comprises in these voice is more complete.
Still referring to Fig. 1, output circuit as a result 6 in the present embodiment also comprises text results display module 61, unit conversion module 5 can directly export physical quantity numerical value after physical quantity numerical value after the conversion or the conversion and the unit after the conversion to text results display module 61, and shows output by text results display module 61 by text mode.Wherein, text results display module 61 can be LCDs (LCD).
Like this, in the unit conversion process that realizes based on phonetic entry, not only can export by voice mode, can also be according to existing text mode output.Certainly, text results display module 61 is not to realize that the utility model is necessary.
By the foregoing circuit structure as seen, in the unit conversion circuit provided by the utility model, audio frequency pre-process circuit, audio signal processor, system, control circuit, voice control circuit can be realized speech voice input function, from the input voice extract required the waiting of unit conversion convert physical quantity numerical value, the conversion before and the conversion after unit, and export the unit conversion module to and convert, utilize the mode of keyboard input in the prior art, improved input speed and can avoid input error.
And output circuit can be by voice and this dual mode output conversion of text result as a result, and wherein, voice mode output conversion result's response speed is very fast, can improve the real-time of output; Text mode output then can take into account the existing unit conversion way of output, meets the use habit of certain customers.
In addition, if the unit conversion device in the utility model is integrated in any existing mobile phone or other mobile devices, then each several parts such as audio frequency pre-process circuit, audio signal processor, system, control circuit, all can be existing resource in this mobile phone or the mobile device, wherein, voice control circuit 4 and unit conversion module 5 can be realized by software, and be carried among the CPU of existing any existing mobile phone or other mobile devices.Like this, just saved and realized required resource, the cost of the utility model.
Certainly, voice control circuit 4 and unit conversion module 5 also can be respectively realized by programmable logic device (PLD) independently.
Below, respectively sound identification module 41 in the utility model unit conversion device and unit conversion module 5 are further specified again.
Fig. 2 is as shown in Figure 1 a sound identification module structural representation in the utility model.As shown in Figure 2, in unit conversion device as shown in Figure 1, sound identification module 41 can be discerned the different sensual pleasure voice signals of 300~4000Hz frequency band, specifically comprises:
Identification pre-service submodule 411, first audio digital signals of reception output after audio signal processor 2 is handled, and first audio digital signals that receives carried out speech recognition pre-service such as filtering, sampling, quantification, windowing, end-point detection, pre-emphasis, export pretreated first audio digital signals of speech recognition then;
Feature extraction submodule 413, receive first audio digital signals of identification pre-service submodule output, utilize the various voice masterplates of storage in the voice template library 412, first audio digital signals that receives is carried out the acoustical characteristic parameters analysis, obtain comprising and wait to convert physical quantity numerical value and convert written order and output preceding and the back unit that converts; Wherein, store the various voice masterplates of the different sensual pleasure of 300~4000Hz frequency band that training in advance obtains in the voice template library 412;
Estimate estimator module 415, receive the written order of feature extraction submodule 413 outputs, and utilize distortion measure (Distortion Measures) parameter of storing in the distortion measure parameter library 414, the written order that receives is carried out distortion measure estimate back output; Wherein, store the distortion measure parameter that sets in advance in the distortion measure parameter library 414;
Syntax rule storehouse 416 stores for example syntax rules such as word-building rule, phonetically similar word decision rule, semantic rules;
Judge recognin module 417, the written order of estimator module 415 outputs is estimated in reception, and according to the syntax rule of storage in the syntax rule storehouse 416, from the written order that receives identification and extract expression wait to convert physical quantity numerical value, convert before the command field and the output of unit and the back unit that converts.
Suppose, phonetic order is " how many grams are 10 kilograms equal ", the above-mentioned written order that then obtains is " how many grams are 10 kilograms equal ", judge that recognin module 417 identifies command field " 10 " according to syntax rule and is numeral, expression wait the to convert numerical value of physical quantity, identify command field " kilogram " and " gram " expression wait the to convert unit of physical quantity according to syntax rule then, because the physical quantity unit that regulation occurs earlier in the syntax rule is the unit before converting, the physical quantity unit that the back occurs is the physical quantity unit after converting, therefore, judge that recognin module 417 can identify " kilogram " and be the unit before converting, " gram " is the unit after converting.
Above-mentioned sound identification module 51 is based on that the hidden markov model (HMM:IIiddenMarkov Model) of the dynamic time warping method (DTW:Dynamic Time Warping) of pattern match and statistical model realizes, in the practical application, the mode of various speech recognition principles is roughly the same, therefore, above-mentioned sound identification module 51 also can adopt existing other schemes to replace.
In the present embodiment, judge recognin module 417, just sound identification module 51 has two-way output, wherein one the tunnel be used to export wait to convert physical quantity convert before and convert after unit, another road is used for the output physical quantity numerical value of waiting to convert.
Wherein, wait the to convert bit wide maximum of physical quantity numerical value can reach 13.
Fig. 3 is as shown in the figure a unit conversion modular structure synoptic diagram in the utility model.As shown in Figure 3, in unit conversion device as shown in Figure 1, unit conversion module 5 specifically comprises:
Unit index chooser module 51, receive to judge 417 one tunnel outputs of recognin module wait convert physical quantity convert before and convert after unit, and search convert before and convert after corresponding respectively index and the output of unit;
Index makes up matched sub-block 52, and the corresponding index of unit difference before the conversion of recruiting unit's index chooser module 51 outputs and after converting makes up the index that receives, and exports this index combination when this index combinations matches; For example, the index combinations matches of " kilogram " and " gram ", " kilogram " and " degree centigrade " index make up and then do not match;
Operation relation chooser module 53, the index matching result of reception hint combinations matches submodule 52 outputs is determined the operation relation and the output of index matching result correspondence; For example, the operation relation that " kilogram " is corresponding with the index matching result of " gram " is " 1000:1 ";
Digital format conversion submodule 54 receives the physical quantity numerical value that converts of waiting of judging 417 another roads outputs of recognin module, and exports after the numerical value that receives is converted to 5 forms that can handle of unit conversion module;
Conversion operator module 55, receive the operation relation of operation relation chooser module 53 outputs and the physical quantity numerical value that converts of waiting that numeric type is changed submodule 54 outputs, and according to the operation relation that receives waiting of the receiving physical quantity numerical value that converts is converted, this physical quantity numerical value after output converts is to as shown in Figure 1 voice output module 42 and/or text results display module 61.
Need to prove, if sound identification module 41 can guarantee the physical quantity numerical value that converts of waiting of its output, meet unit conversion module 5 desired forms, digital format conversion submodule 54 then also can be set in the unit conversion module 5 as shown in Figure 3, but directly receive the physical quantity numerical value that converts of waiting of judging 417 another road outputs of recognin module by conversion operator module 55.
Fig. 4 is the workflow synoptic diagram of sound identification module and unit conversion module in the utility model.As shown in Figure 4, the workflow of sound identification module among Fig. 1 41 and unit conversion module 5 is as follows:
Step 401, sound identification module 41 receives first audio digital signals of exporting after audio signal processor 2 signal Processing, trigger voice recognition event, and first audio digital signals that receives is carried out speech recognition pre-service such as filtering, sampling, quantification, windowing, end-point detection, pre-emphasis.
Step 402, sound identification module 41 are utilized the various voice masterplates of its storage inside, pretreated first audio digital signals of speech recognition is carried out the acoustical characteristic parameters analysis, thereby first audio digital signals is converted to written order.
Whether step 403, sound identification module 41 are judged to comprise in the written order and are represented to wait to convert the physical quantity numerical value and the command field preceding and the back unit that converts that converts according to the syntax rule of its storage inside, if comprise, then execution in step 404, otherwise, return step 401.
Step 404, sound identification module 41 from the written order that receives, discern and extract expression wait to convert physical quantity numerical value, convert before the command field of unit and the back unit that converts.
Above-mentioned steps 401~step 404 is the course of work of sound identification module 41, after execution in step 404, and while execution in step 405 and step 406.
Step 405, unit conversion module 5 are obtained and are waited to convert the preceding pairing index of unit of physical quantity conversion, and execution in step 407 then.
Step 406, unit conversion module 5 are obtained the pairing index of unit after the physical quantity of waiting to convert converts, and execution in step 407 then.
Before step 407, unit conversion module 5 will convert and the corresponding respectively index of the unit after converting make up.
Step 408, unit conversion module 5 judge whether the index combination mates, if coupling, then execution in step 409, otherwise, return step 401.
Step 409, unit conversion module 5 are obtained the corresponding operation relation of index combination of coupling.
Step 410, the operation relation that unit conversion module 5 is obtained according to step 409 extracts waiting of the obtaining physical quantity numerical value that converts to step 404 and converts the numerical value after obtaining converting.
So far, this flow process finishes.
The device of realization unit conversion provided by the utility model can be realized the unit conversion of all kinds physical quantitys such as area, energy, length, power, pressure, temperature, time, speed, volume.For the conversion of the physical quantity of arbitrary type, the principle of work of unit conversion circuit is all identical, enumerates no longer one by one at this.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection domain of the present utility model.All within spirit of the present utility model and principle, any modification of being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims (11)

1, a kind of device of realizing unit conversion is characterized in that, this device comprises: audio frequency pre-process circuit, audio signal processor, system, control circuit, voice control circuit, unit conversion module, output circuit as a result, wherein,
The audio frequency pre-process circuit produces first analog voice signal according to the phonetic order of outside, and output is carried out pretreated first audio digital signals of audio frequency to first analog voice signal; Wherein, comprise in the described phonetic order numerical value of the physical quantity of waiting to convert, the unit before converting and convert after unit;
Audio signal processor receives first audio digital signals of exporting after audio frequency pre-process circuit Audio Processing, first audio digital signals after output signal under the control of system, control circuit is handled; Receive second audio digital signals of voice control circuit output, and under the control of system, control circuit, second audio digital signals of output after signal Processing;
Voice control circuit receives first audio digital signals of exporting after the audio signal processor signal Processing, the written order that output is converted to by this first audio digital signals comprises before wait to convert physical quantity numerical value and the conversion and the back unit that converts in this written order; Physical quantity numerical value after the conversion of recruiting unit conversion module output, and produce second audio digital signals output that comprises the physical quantity numerical value after the conversion;
The unit conversion module receives the written order of voice control circuit output, and according to treating in this written order convert physical quantity numerical value, convert before and the back unit that converts, the physical quantity numerical value after output converts;
Output circuit receives second audio digital signals and the output of exporting after the audio signal processor signal Processing as a result.
2, unit conversion device as claimed in claim 1 is characterized in that, described audio frequency pre-process circuit comprises:
The voice receiving-member is converted to first analog voice signal and output according to the phonetic order of described outside;
The speech signal collection module is sampled to first analog voice signal of voice receiving-member output and is exported according to default sample frequency;
The noise processed module is carried out noise reduction process and output to first analog voice signal after the sampling of speech signal collection module output;
The voice amplification module amplifies first analog voice signal behind the noise reduction of noise processed module output and output;
Analog/digital A/D modular converter is converted to first audio digital signals and output with first analog voice signal after the amplification of voice amplification module output.
3, unit conversion device as claimed in claim 2 is characterized in that, described voice receiving-member is a microphone.
4, unit conversion device as claimed in claim 2 is characterized in that, described output circuit as a result comprises:
Digital-to-analog D/A modular converter is converted to second analog voice signal and output with second audio digital signals;
The audio frequency amplification module is with second analog voice signal amplification back output of D/A modular converter output;
The voice output parts are exported second analog voice signal after the amplification of audio frequency amplification module output by voice mode.
5, unit conversion device as claimed in claim 4 is characterized in that, described voice output parts are loudspeaker.
6, unit conversion device as claimed in claim 4 is characterized in that, described output circuit as a result further comprises:
The text results display module, the physical quantity numerical value after the conversion of recruiting unit's conversion module output, and by text mode demonstration output.
7, unit conversion device as claimed in claim 6 is characterized in that, described text results display module is a LCDs.
8, as any described unit conversion device in the claim 1 to 7, it is characterized in that described voice control circuit comprises:
Sound identification module receives first audio digital signals of exporting, and exports the described written order that is converted to by first audio digital signals to the unit conversion module after the audio signal processor signal Processing;
The voice output module, the physical quantity numerical value after the conversion of recruiting unit conversion module output, and produce described second audio digital signals that comprises the physical quantity numerical value after the conversion and export audio signal processor to.
9, unit conversion device as claimed in claim 8 is characterized in that, described sound identification module comprises:
Identification pre-service submodule receives first audio digital signals of exporting after the pre-service of audio signal processor audio frequency, and pretreated first audio digital signals of output speech recognition;
The voice template library stores the various voice masterplates that training in advance obtains;
The feature extraction submodule receives pretreated first audio digital signals of identification of identification pre-service submodule output, and the described written order that obtains after utilizing described voice masterplate to the described first audio digital signals analysis of output;
The distortion measure parameter library stores the distortion measure parameter that sets in advance;
Estimate the estimator module, receive the described written order of feature extraction submodule output, and output utilizes the described written order after described distortion measure parameter is carried out the distortion measure estimation;
The syntax rule storehouse stores various syntax rules;
Judge the recognin module, the written order after the estimation estimated of estimator module output is estimated in reception, and output according to the expression that identification extraction goes out from this written order of described syntax rule wait to convert physical quantity numerical value, convert before the command field of unit and the back unit that converts to described unit conversion module.
10, unit conversion device as claimed in claim 9 is characterized in that, described unit conversion module comprises:
Unit index chooser module, receive to judge the output of recognin module wait convert physical quantity convert before and convert after unit, and search convert before and convert after corresponding respectively index and the output of unit;
Index combination matched sub-block, this index combination exported in the corresponding respectively index of unit before the conversion of recruiting unit's index chooser module output and after converting when the combinations matches of the index that receives;
Operation relation chooser module, the index combination of reception hint combinations matches submodule output, and the index that output receives makes up pairing operation relation;
Digital format conversion submodule receives the physical quantity numerical value that converts of waiting of judging the output of recognin module, and exports after the numerical value that receives is converted to the coupling form;
Conversion operator module, receive the operation relation of operation relation chooser module output and the physical quantity numerical value that converts of waiting that numeric type is changed submodule output, and waiting of the receiving physical quantity numerical value that converts is converted this physical quantity numerical value after output converts according to the operation relation that receives.
11, a kind of mobile phone of realizing unit conversion is characterized in that, described mobile phone comprises: audio frequency pre-process circuit, audio signal processor, system, control circuit, voice control circuit, unit conversion module, output circuit as a result, wherein,
The audio frequency pre-process circuit produces first analog voice signal according to the phonetic order of outside, and output is carried out pretreated first audio digital signals of audio frequency to first analog voice signal; Wherein, comprise in the described phonetic order numerical value of the physical quantity of waiting to convert, the unit before converting and convert after unit;
Audio signal processor receives first audio digital signals of exporting after audio frequency pre-process circuit Audio Processing, first audio digital signals after output signal under the control of system, control circuit is handled; Receive second audio digital signals of voice control circuit output, and under the control of system, control circuit, second audio digital signals of output after signal Processing;
Voice control circuit receives first audio digital signals of exporting after the audio signal processor signal Processing, the written order that output is converted to by this first audio digital signals comprises before wait to convert physical quantity numerical value and the conversion and the back unit that converts in this written order; Physical quantity numerical value after the conversion of recruiting unit conversion module output, and produce second audio digital signals output that comprises the physical quantity numerical value after the conversion;
The unit conversion module receives the written order of voice control circuit output, and according to treating in this written order convert physical quantity numerical value, convert before and the back unit that converts, the physical quantity numerical value after output converts;
Output circuit receives second audio digital signals and the output of exporting after the audio signal processor signal Processing as a result.
CNU2008201312053U 2008-07-17 2008-07-17 Device for implementing unit conversion Expired - Fee Related CN201266374Y (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102469351A (en) * 2010-11-08 2012-05-23 康佳集团股份有限公司 Unit conversion apparatus arranged in digital set-top box
CN103123466A (en) * 2011-11-10 2013-05-29 洛克威尔自动控制技术股份有限公司 Implementing engineering unit conversions associated with control devices

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102469351A (en) * 2010-11-08 2012-05-23 康佳集团股份有限公司 Unit conversion apparatus arranged in digital set-top box
CN103123466A (en) * 2011-11-10 2013-05-29 洛克威尔自动控制技术股份有限公司 Implementing engineering unit conversions associated with control devices
CN103123466B (en) * 2011-11-10 2016-05-11 洛克威尔自动控制技术股份有限公司 Realize the engineering unit conversion being associated with control appliance
US9405284B2 (en) 2011-11-10 2016-08-02 Rockwell Automation Technologies, Inc. Implementing engineering unit conversions associated with control devices

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