CN103019409A - Character input method and character input device based on ambient light - Google Patents
Character input method and character input device based on ambient light Download PDFInfo
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- CN103019409A CN103019409A CN2012104876754A CN201210487675A CN103019409A CN 103019409 A CN103019409 A CN 103019409A CN 2012104876754 A CN2012104876754 A CN 2012104876754A CN 201210487675 A CN201210487675 A CN 201210487675A CN 103019409 A CN103019409 A CN 103019409A
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Abstract
The invention provides a character input method and character input device based on ambient light. The method comprises the following steps: controlling an ambient light sensor to acquire the light according to preset acquisition intervals, so as to acquire a plurality of usable ambient light intensities; carrying out binarization processing on the usable ambient light intensities according to ambient light intensity reference values, so as to obtain a binary sequence, wherein each usable ambient light intensity corresponds to one bit of the binary sequence; and carrying out decoding processing on the binary sequence according to a preset decoding rule so as to obtain input characters. By utilizing the character input method and character input device based on the ambient light, the ambient light intensities acquired by the ambient light sensor are converted into information input of a mobile intelligent terminal, so that the application range of the ambient light sensor is expanded.
Description
Technical field
The present invention relates to the communication technology, relate in particular to a kind of characters input method based on surround lighting and device.
Background technology
Current, mobile intelligent terminal is generally all with multiple sensors, for example, and gravity sensor, 3-axis acceleration sensor, electronic compass, gyroscope, light distance-sensor etc., by these sensors, mobile intelligent terminal can be experienced for the user provides good user.For example, by gravity sensor, mobile intelligent terminal can be responded to 90 degree and tilt, and adds 3-axis acceleration sensor, just can sense 360 degree and tilt; The intelligent terminal that has loaded electronic compass can utilize the direction of the induction four corners of the world, magnetic field of the earth; The intelligent terminal that has loaded ambient light sensor can be identified power of extraneous light etc.
Ambient light sensor is commonly used to the variation of perception terminal surrounding environment light in the mobile intelligent terminal, especially, adjusts display backlight lamp intensity so that the user can better see displaying contents clearly according to the intensity of ambient light.But at present the application of ambient light sensor only limited to this, fail to give full play to the function of ambient light sensor.
Summary of the invention
The object of the invention is to provide a kind of characters input method based on surround lighting and device, and the ambient light power that is used for ambient light sensor is collected changes into the mobile intelligent terminal input information, the range of application of expansion ambient light sensor.
The invention provides a kind of characters input method based on surround lighting, comprising:
Carry out daylighting according to the default acquisition interval optical sensor that controls environment, to obtain a plurality of available ambient light intensities;
According to the ambient light intensity reference value, described a plurality of available ambient light intensities are carried out binary conversion treatment, obtain binary sequence, wherein, in the corresponding described binary sequence of each available ambient light intensity one;
According to default decoding rule, described binary sequence is deciphered processing obtain input character.
The present invention also provides a kind of character entry apparatus based on surround lighting, comprising:
Acquisition module carries out daylighting for the optical sensor that controls environment according to default acquisition interval, to obtain a plurality of available ambient light intensities;
The two-value module is used for according to the ambient light intensity reference value described a plurality of available ambient light intensities being carried out binary conversion treatment, obtains binary sequence, wherein, and in the corresponding described binary sequence of each available ambient light intensity one;
Decoding module is used for according to default decoding rule, described binary sequence is deciphered to process obtaining input character.
Characters input method and device based on surround lighting provided by the invention obtain a plurality of available ambient light intensities by the optical sensor that controls environment according to default acquisition interval; And described a plurality of available ambient light intensities are carried out binary conversion treatment, obtain binary sequence; According to default decoding rule, described binary sequence is deciphered processing obtain input character subsequently.Technical scheme provided by the invention can realize that the ambient light power that ambient light sensor is collected changes into the mobile intelligent terminal input information, expanded the range of application of ambient light sensor, for providing a kind of brand-new input method, the user experiences, along with ambient light sensor in mobile intelligent terminal application and popularize, also will obtain certain application and universal based on the characters input method of surround lighting.
Description of drawings
The schematic flow sheet of a kind of characters input method based on surround lighting that Fig. 1 provides for one embodiment of the invention;
Fig. 2 is the schematic flow sheet of step 10 among Fig. 1;
Fig. 3 is the schematic flow sheet of step 30 among Fig. 1;
The structural representation of a kind of character entry apparatus based on surround lighting that Fig. 4 provides for further embodiment of this invention.
Embodiment
The schematic flow sheet of a kind of characters input method based on surround lighting that Fig. 1 provides for one embodiment of the invention, as shown in Figure 1, present embodiment provides a kind of characters input method based on surround lighting, comprising:
Step 10: carry out daylighting according to the default acquisition interval optical sensor that controls environment, to obtain a plurality of available ambient light intensities.Usually can by user's optical sensor that controls environment, for example block, decontrol action to the photographic hole of ambient light sensor according to default acquisition interval by finger, shelter, so that ambient light sensor can obtain corresponding available ambient light intensity.At this, carry out daylighting control for the optical sensor that controls environment and to carry out according to default acquisition interval.
Step 20: according to the ambient light intensity reference value, a plurality of available ambient light intensities are carried out binary conversion treatment, obtain binary sequence, wherein, in the corresponding binary sequence of each available ambient light intensity one.And compare between the ambient light intensity reference value, the available ambient light intensity that collects is carried out binary conversion treatment, concrete binary conversion treatment mode is for being set to 1 for the binaryzation result greater than the available ambient light intensity of ambient light intensity reference value, and is set to 0 less than the binaryzation result of the available ambient light intensity of ambient light intensity reference value.A plurality of so available ambient light intensities have just become corresponding binary sequence.Such as the form such as 010111001000.
Step 30: according to default decoding rule, binary sequence is deciphered processing obtain input character.For the binary sequence that gets access to, need to decipher processing according to default decoding rule, for example decipher for 8 binary sequence, obtain corresponding input character.Concrete decoding rule can for, binary sequence is converted into a plurality of numerical value, obtain input character thereby each numerical value is mapped as character.Wherein, binary sequence is converted into a plurality of numerical value can divide into groups to binary sequence according to the combination figure place of appointment in the decoding rule, forms a plurality of sub-binary sequences, and every sub-binary sequence calculates a numerical value.For example, the combination figure place of appointment can be 8,6,3,11 etc.For example, suppose that the binary sequence that gets access to is 0,0,0,0,0,1,1,1,0,0,0,0,0,1,1, then with 8 bit pattern figure places this binary sequence is divided into groups, to obtain sub-binary sequence 00000111 and sub-binary sequence 0000011, the numerical value of its neutron binary sequence 00000111 correspondence is 0x07, and the numerical value of sub-binary sequence 0000011 correspondence is 0x03.Certainly concrete default decoding rule is not limited to this.And character corresponding to each numerical value can be searched corresponding default decoding table and decipher, and for example for the 0x03 of above-mentioned sub-binary sequence 0000011 correspondence, character corresponding with 0x03 in the default decoding table is " opening ".Based on above-mentioned, the information by the optical sensor that controls environment carries out daylighting input 0,0,0,0,0,1,1 finally can obtain input character and " open ".
The characters input method based on surround lighting that present embodiment provides obtains a plurality of available ambient light intensities by the optical sensor that controls environment according to default acquisition interval; And described a plurality of available ambient light intensities are carried out binary conversion treatment, obtain binary sequence; According to default decoding rule, described binary sequence is deciphered processing obtain input character subsequently.The technical scheme that present embodiment provides can realize that the ambient light power that ambient light sensor is collected changes into the mobile intelligent terminal input information, expanded the range of application of ambient light sensor, for providing a kind of brand-new input method, the user experiences, along with ambient light sensor in mobile intelligent terminal application and popularize, also will obtain certain application and universal based on the characters input method of surround lighting.
The user state in the use provide among the embodiment based on the characters input method of surround lighting the time, study that can be by in advance or understand corresponding relation between ambient light intensity and the default decoding rule is inputted thereby finish based on the character of surround lighting.Default decoding rule also can set up on their own by the user in addition, the user can be according to the custom etc. of oneself, with concrete character corresponding to light intensity input, so that waiting in use according to oneself setting the default decoding rule that needs, the user can carry out the input of corresponding character.
Fig. 2 is the schematic flow sheet of step 10 among Fig. 1, as shown in Figure 2, preferred as technique scheme, step 10: carry out daylighting according to the default acquisition interval optical sensor that controls environment, comprise to obtain a plurality of available ambient light intensities:
Step 101: carry out daylighting according to the acquisition interval optical sensor that controls environment, obtain a plurality of initial environment light intensities.Owing to having certain error in the process of carrying out daylighting at the optical sensor that controls environment, the for example time-delay of the movement of user's finger, the shelter action error etc. in time of rising and falling, can cause and in the middle of acquisition interval, produce some for example ambient light intensities of transition, cause to have some disabled collection values in the initial environment light intensity that collects, obtain available ambient light intensity thereby need to screen to proofread and correct to a plurality of initial environment light intensities of obtaining.
Step 102: according to formula T
n=T
1+ nK ± t determines a plurality of acquisition time scopes.Because for example time-delay of the movement of user's finger, the shelter action error etc. in time of rising and falling, the time point that can cause a plurality of initial environment light intensities that collect is not to distribute according to default acquisition interval fully, so, need to screen according to acquisition interval a plurality of initial environment light intensities that collect.Wherein, n is natural number, and t is the Preset Time threshold value, T
1Be default collection zero-time, K is acquisition interval, T
nRepresent n acquisition time scope.
Step 103: according to the initial environment light intensity in each acquisition time scope, obtain available ambient light intensity corresponding to each acquisition time scope.For the initial environment light intensity in the acquisition time scope, can be preferably with immediate that initial environment light intensity of acquisition time as available ambient light intensity corresponding in this acquisition time scope.Can certainly be according to default selective rule, as the ambient light intensity maximum, minimum or choose at random.Wherein, the initial environment light intensity in each acquisition time scope may be one, also may be a plurality of.Being in a plurality of situation, can the initial environment light intensity in the acquisition time scope be averaged, with the mean value that obtains as available ambient light intensity corresponding to this acquisition time scope.
Preferred as technique scheme, step 20: according to the ambient light intensity reference value, a plurality of available ambient light intensities are carried out binary conversion treatment, obtain binary sequence and comprise:
Each available ambient light intensity and ambient light intensity reference value are compared, to be set to 1 greater than the binaryzation result of the available ambient light intensity of ambient light intensity reference value, the binaryzation result that will be less than or equal to the available ambient light intensity of ambient light intensity reference value is set to 0, obtains binary sequence.For example the ambient light intensity reference value is 20, then when one of them available ambient light intensity is 60, then the binaryzation result of this available ambient light intensity can be set to 1, be 7 and work as one of them available ambient light intensity, then the binaryzation result of this available ambient light intensity can be set to 0.
According to the ambient light intensity reference value, available ambient light intensity to be carried out before the binary conversion treatment, a kind of mode of obtaining the ambient light intensity reference value comprises:
Carry out daylighting by the optical sensor that controls environment, obtain the ambient light intensity reference value.For example the user can use finger that the photographic hole of ambient light sensor is blocked fully, with ambient light intensity that this moment, ambient light sensor got access to as the ambient light intensity reference value.Again for example, the user can use finger that the photographic hole of ambient light sensor is partly blocked, with ambient light intensity that this moment, ambient light sensor got access to as the ambient light intensity reference value.Again for example, under the condition that the photographic hole of ambient light sensor is not blocked, the ambient light intensity that ambient light sensor gets access to also can be used as the ambient light intensity reference value.
The another kind of mode of obtaining the ambient light intensity reference value comprises: a plurality of available ambient light intensities are averaged, with mean value as the ambient light intensity reference value.For example collect a plurality of available ambient light intensities and be respectively 65,68,10,63,12,70,10,7,9, then above-mentioned available ambient light intensity value of averaging is processed, calculating mean value is (65+68+10+63+12+70+10+7+9)/9=34.9, and then the ambient light intensity reference value is 34.9 in the present embodiment.
Fig. 3 is the schematic flow sheet of step 30 among Fig. 1, as shown in Figure 3, preferred as technique scheme, step 30: according to default decoding rule, binary sequence deciphered process the acquisition input character and comprise:
Step 301: according to the combination figure place of appointment in the decoding rule, binary sequence is divided into a plurality of sub-binary sequences, and calculates every numerical value corresponding to sub-binary sequence.For example the combination figure place of appointment is 8 in the decoding rule, then binary sequence is divided into a plurality of 8 sub-binary sequences.Such as 38 sub-binary sequence " 00000111 ", " 00000011 " of being divided into of 000001110000001100001111 correspondence, " 00001111 ".Then corresponding sub-binary sequence is calculated as corresponding numerical value, reaches " 15 " such as respectively corresponding " 7 ", " 3 ".
Step 302: according to the mapping relations between numerical value in the decoding rule and the character, each numerical value is mapped as character, obtains input character.Mapping relations according in the decoding rule are mapped as character with numerical value, obtain input character, " 7 " corresponding character " 7 " for example, " 3 " corresponding character " king " etc.The realization binary sequence that available ambient light intensity is corresponding is converted to corresponding character, realizes the input of information.Wherein concrete character can be Chinese and English, numeral or punctuation mark, mathematic sign etc.
The technical scheme that present embodiment provides can realize that the ambient light power that ambient light sensor is collected changes into the mobile intelligent terminal input information, has expanded the range of application of ambient light sensor.
The structural representation of a kind of character entry apparatus based on surround lighting that Fig. 4 provides for further embodiment of this invention, as shown in Figure 4, present embodiment provides a kind of character entry apparatus based on surround lighting, comprising:
Two-value module 20 is connected with acquisition module 10, is used for according to the ambient light intensity reference value, the a plurality of available ambient light intensity that acquisition module 10 is got access to carries out binary conversion treatment, obtain binary sequence, wherein, in the corresponding binary sequence of each available ambient light intensity one;
The character entry apparatus based on surround lighting that present embodiment provides obtains a plurality of available ambient light intensities by acquisition module 10 according to the default acquisition interval optical sensor that controls environment; 20 pairs of a plurality of available ambient light intensities of two-value module carry out binary conversion treatment, obtain binary sequence; Decoding module 30 is deciphered processing to binary sequence and is obtained input character according to default decoding rule.The technical scheme that present embodiment provides can realize that the ambient light power that ambient light sensor is collected changes into the mobile intelligent terminal input information.
It is identical based on the realization flow based on the characters input method of surround lighting in the realization flow of the character entry apparatus of surround lighting and above-described embodiment that concrete present embodiment provides, please refer to the flow process of above-mentioned characters input method based on surround lighting, do not repeat them here.
Preferred as technique scheme, acquisition module 10 comprises:
Collecting unit carries out daylighting for the optical sensor that controls environment according to acquisition interval, obtains a plurality of initial environment light intensities;
Computing unit is connected with collecting unit, is used for according to formula T
n=T
1+ nK ± t determines a plurality of acquisition time scopes;
Acquiring unit is connected with computing unit, and the initial environment light intensity in each the acquisition time scope that is used for calculating according to computing unit obtains available ambient light intensity corresponding to each acquisition time scope;
Wherein, n is natural number, and t is the Preset Time threshold value, T
1Be default collection zero-time, K is acquisition interval, T
nRepresent n acquisition time scope.
Preferred as technique scheme, two-value module 20 comprises:
Comparing unit is used for each available ambient light intensity and ambient light intensity reference value are compared;
Processing unit, be connected with comparing unit, be used for the binaryzation result that comparing unit relatively draws greater than the available ambient light intensity of ambient light intensity reference value is set to 1, the binaryzation result that will be less than or equal to the available ambient light intensity of ambient light intensity reference value is set to 0, obtains binary sequence.
Preferred as technique scheme also comprises based on the character entry apparatus of surround lighting:
The reference value acquisition module is connected with two-value module 20, is used in two-value module 20 according to the ambient light intensity reference value, and available ambient light intensity is carried out carrying out daylighting by the optical sensor that controls environment before the binary conversion treatment, obtains the ambient light intensity reference value; Perhaps, be used in two-value module 20 according to the ambient light intensity reference value, available ambient light intensity carried out a plurality of available ambient light intensities being averaged before the binary conversion treatment, with mean value as the ambient light intensity reference value.
Preferred as technique scheme, decoding module 30 comprises:
Division unit is used for the combination figure place according to the decoding rule appointment, and binary sequence is divided into a plurality of sub-binary sequences, and calculates every numerical value corresponding to sub-binary sequence;
Map unit is connected with division unit, is used for according to the mapping relations between decoding rule numerical value and the character, and the numerical value that each division unit is calculated is mapped as character, obtains input character.
This paper technological expansion the purposes of ambient light sensor in the mobile intelligent terminal, the user can come inputting word information by the environment light intensity of regulating the energy perception of mobile intelligent terminal institute.In this technical scheme, mobile intelligent terminal is according to imposing a condition, the ambient light intensity that ambient light sensor is obtained is strong and weak change change into the 0-1 sequence, and and then obtain user's input message by the 0-1 sequence of processing gained.This technological expansion the purposes of mobile intelligent terminal ambient light sensor, experience for the user provides a kind of brand-new input method, leading to ambient light sensor in mobile intelligent terminal application and popularize, the light input method also will obtain certain application and universal.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can be finished by the relevant hardware of programmed instruction.Aforesaid program can be stored in the computer read/write memory medium.This program is carried out the step that comprises above-mentioned each embodiment of the method when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. the characters input method based on surround lighting is characterized in that, comprising:
Carry out daylighting according to the default acquisition interval optical sensor that controls environment, to obtain a plurality of available ambient light intensities;
According to the ambient light intensity reference value, described a plurality of available ambient light intensities are carried out binary conversion treatment, obtain binary sequence, wherein, in the corresponding described binary sequence of each available ambient light intensity one;
According to default decoding rule, described binary sequence is deciphered processing obtain input character.
2. characters input method according to claim 1 is characterized in that, the default acquisition interval of the described basis optical sensor that controls environment carries out daylighting, comprises to obtain a plurality of available ambient light intensities:
Control described ambient light sensor according to described acquisition interval and carry out daylighting, obtain a plurality of initial environment light intensities;
According to formula T
n=T
1+ nK ± t determines a plurality of acquisition time scopes;
According to the initial environment light intensity in each acquisition time scope, obtain available ambient light intensity corresponding to each acquisition time scope;
Wherein, n is natural number, and t is the Preset Time threshold value, T
1Be default collection zero-time, K is described acquisition interval, T
nRepresent n acquisition time scope.
3. characters input method according to claim 1 is characterized in that, and is described according to the ambient light intensity reference value, and described a plurality of available ambient light intensities are carried out binary conversion treatment, obtains binary sequence and comprises:
Each available ambient light intensity and described ambient light intensity reference value are compared, to be set to 1 greater than the binaryzation result of the available ambient light intensity of described ambient light intensity reference value, the binaryzation result that will be less than or equal to the available ambient light intensity of described ambient light intensity reference value is set to 0, obtains described binary sequence.
4. characters input method according to claim 3 is characterized in that, and is described according to the ambient light intensity reference value, and described a plurality of available ambient light intensities are carried out binary conversion treatment, obtains to comprise before the binary sequence:
Carry out daylighting by controlling described ambient light sensor, obtain described ambient light intensity reference value; Perhaps,
Described a plurality of available ambient light intensities are averaged, with described mean value as described ambient light intensity reference value.
5. each described characters input method in 4 according to claim 1 is characterized in that described basis is preset decoding rule, described binary sequence is deciphered to process obtaining input character and comprise:
According to the combination figure place of appointment in the described decoding rule, described binary sequence is divided into a plurality of sub-binary sequences, and calculates every numerical value corresponding to sub-binary sequence;
According to the mapping relations between numerical value and the character in the described decoding rule, each numerical value is mapped as character, obtain described input character.
6. the character entry apparatus based on surround lighting is characterized in that, comprising:
Acquisition module carries out daylighting for the optical sensor that controls environment according to default acquisition interval, to obtain a plurality of available ambient light intensities;
The two-value module is used for according to the ambient light intensity reference value described a plurality of available ambient light intensities being carried out binary conversion treatment, obtains binary sequence, wherein, and in the corresponding described binary sequence of each available ambient light intensity one;
Decoding module is used for according to default decoding rule, described binary sequence is deciphered to process obtaining input character.
7. character entry apparatus according to claim 6 is characterized in that, described acquisition module comprises:
Collecting unit is used for controlling described ambient light sensor according to described acquisition interval and carries out daylighting, obtains a plurality of initial environment light intensities;
Computing unit is according to formula T
n=T
1+ nK ± t determines a plurality of acquisition time scopes;
Acquiring unit is used for according to the initial environment light intensity in each acquisition time scope, obtains available ambient light intensity corresponding to each acquisition time scope;
Wherein, n is natural number, and t is the Preset Time threshold value, T
1Be default collection zero-time, K is described acquisition interval, T
nRepresent n acquisition time scope.
8. character entry apparatus according to claim 6 is characterized in that, described two-value module comprises:
Comparing unit is used for each available ambient light intensity and described ambient light intensity reference value are compared;
Processing unit is used for and will be set to 1 greater than the binaryzation result of the available ambient light intensity of described ambient light intensity reference value, and the binaryzation result that will be less than or equal to the available ambient light intensity of described ambient light intensity reference value is set to 0, obtains described binary sequence.
9. character entry apparatus according to claim 8 is characterized in that, described character entry apparatus also comprises:
The reference value acquisition module, be used in described two-value module according to described ambient light intensity reference value, described a plurality of available ambient light intensities are carried out carrying out daylighting by controlling described ambient light sensor before the binary conversion treatment, obtain described ambient light intensity reference value; Perhaps, be used for according to described ambient light intensity reference value, described a plurality of available ambient light intensities carried out described a plurality of available ambient light intensities being averaged before the binary conversion treatment, with described mean value as described ambient light intensity reference value.
10. each described character entry apparatus in 9 according to claim 6 is characterized in that described decoding module comprises:
Division unit is used for the combination figure place according to described decoding rule appointment, and described binary sequence is divided into a plurality of sub-binary sequences, and calculates every numerical value corresponding to sub-binary sequence;
Map unit is used for according to the mapping relations between described decoding rule numerical value and the character, and each numerical value is mapped as character, obtains described input character.
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