CN104422920A - Terminal equipment and signal modulating method thereof - Google Patents
Terminal equipment and signal modulating method thereof Download PDFInfo
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- CN104422920A CN104422920A CN201310403596.5A CN201310403596A CN104422920A CN 104422920 A CN104422920 A CN 104422920A CN 201310403596 A CN201310403596 A CN 201310403596A CN 104422920 A CN104422920 A CN 104422920A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/70—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using electromagnetic waves other than radio waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
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Abstract
The invention discloses terminal equipment and a signal modulating method thereof. The terminal equipment comprises a shell, at least one signal source and at least one signal modulating unit, wherein the at least one signal source is arranged on at least first surface of the shell and used for broadcasting signals; the signal modulating unit is corresponding to the at least one signal source and used for modulating signals emitted by the signal source under a signal emitting mode, so that the modulated signals comprise unique identification information associated with the corresponding broadcasting directions relative to multiple preset broadcasting directions with preset intervals of at least one signal source.
Description
Technical field
The present invention relates to a kind of terminal device and signal modulating method thereof.
Background technology
Current, along with the development of equipment room interaction technique, accurately the mutual location technology of equipment becomes more and more important.Propose a kind of ultrasonic technology in the prior art, wherein at least two ultrasonic wave receive unit are set on specific terminal device, are calculated the orientation of another equipment sending ultrasonic signal by the distance of these at least two ultrasonic wave receive unit, the time of the two Received signal strength or intensity.But this technology depends on the distance between these at least two ultrasonic wave receive unit, if distance is therebetween very near, then the orientation of another equipment accurately cannot be calculated.Therefore, need the distance between these at least two ultrasonic wave receive unit to arrange larger.In this case, this technology cannot be applied on small-size equipment accurately to locate miscellaneous equipment.
Summary of the invention
In order to solve above-mentioned technical matters of the prior art, according to an aspect of the present invention, a kind of terminal device being provided, comprising: housing; At least one signal source, is arranged at least first surface of described housing, and configuration carrys out broadcast singal; The signal madulation unit that arrange corresponding at least one signal source described, configuration comes under signal emission mode, the signal that signal source is launched is modulated, make have predetermined interval, relative on the multiple default direction of propagation of at least one signal source described, described modulated signal comprises the unique identification information relevant to the corresponding direction of propagation.
In addition, according to one embodiment of present invention, at least one signal source wherein said is infrared light supply, and configuration produces infrared light; And described signal madulation unit, comprising: the liquid crystal layer arranged around described infrared light sources, described liquid crystal layer has multiple pixel, and the pixel cell of described multiple default directions of propagation respectively from different is corresponding; And control module, configuration controls the transmission/non-transmissive state of each pixel cell on described liquid crystal layer.
In addition, according to one embodiment of present invention, wherein said control module is for each direction of propagation in described multiple default direction of propagation, control the transmission/non-transmissive state of pixel corresponding with each direction of propagation described on described liquid crystal layer with different coded systems respectively, make the modulated infrared light on multiple default direction of propagation comprise different coded messages as unique identification information.
In addition, according to one embodiment of present invention, wherein when described modulated infrared light is received by another terminal device, another terminal device described determines the direction of another terminal device described relative to described terminal device based on unique identification information that described modulated infrared light comprises.
In addition, according to one embodiment of present invention, another terminal device wherein said prestores the information relevant to the power of described infrared light supply; And when being received by another terminal device described, the intensity of described infrared light is for judging described distance between another terminal device and described terminal device.
In addition, according to one embodiment of present invention, at least one signal source wherein said is ultrasonic wave generator unit, and configuration produces ultrasound wave; And described signal madulation unit, comprising: around the beam forming unit of described ultrasonic wave generator unit, configure the hyperacoustic coding modulated on multiple default direction of propagation; And control module, configuration controls the modulation of described beam forming unit.
In addition, according to one embodiment of present invention, wherein said control module is for each direction of propagation in described multiple default direction of propagation, control described beam forming unit with different coded systems and be modulated at hyperacoustic coding on each direction of propagation described, make the modulated ultrasound wave packages on multiple default direction of propagation containing different coded messages as unique identification information.
In addition, according to one embodiment of present invention, wherein when described modulated ultrasound wave is received by another terminal device, another terminal device described determines the direction of another terminal device described relative to described terminal device based on unique identification information that described modulated ultrasound wave comprises.
In addition, according to one embodiment of present invention, another terminal device wherein said prestores the information relevant to the power that described ultrasound wave produces; And when being received by another terminal device described, described hyperacoustic intensity is for judging described distance between another terminal device and described terminal device.
In addition, according to a further aspect in the invention, provide a kind of signal modulating method, be applied to terminal device, described terminal device comprises: housing; At least one signal source, is arranged at least first surface of described housing; The signal madulation unit that arrange corresponding at least one signal source described, described signal modulating method comprises: the present mode judging described terminal device; If described terminal device is in signal emission mode, then by described signal madulation signal, the signal that signal source is launched is modulated, make have predetermined interval, relative on the multiple default direction of propagation of at least one signal source described, described modulated signal comprises the unique identification information relevant to the corresponding direction of propagation.
In addition, according to one embodiment of present invention, at least one signal source wherein said is infrared light supply, and configuration produces infrared light; And described signal madulation unit comprises the liquid crystal layer arranged around described infrared light sources, described liquid crystal layer has multiple pixel, and the pixel cell of described multiple default directions of propagation respectively from different is corresponding; And control module, configuration controls the transmission/non-transmissive state of each pixel cell on described liquid crystal layer.
In addition, according to one embodiment of present invention, wherein by described signal madulation signal, the step that the signal that signal source is launched is modulated is comprised further: described control module is for each direction of propagation in described multiple default direction of propagation, control the transmission/non-transmissive state of pixel corresponding with each direction of propagation described on described liquid crystal layer with different coded systems respectively, make the modulated infrared light on multiple default direction of propagation comprise different coded messages as unique identification information.
In addition, according to one embodiment of present invention, unique identification information that wherein said modulated infrared light comprises is used to indicate the direction of described modulated infrared light relative to described terminal device.
In addition, according to one embodiment of present invention, at least one signal source wherein said is ultrasonic wave generator unit, and configuration produces ultrasound wave; And described signal madulation unit comprises the beam forming unit around described ultrasonic wave generator unit, configure the hyperacoustic coding modulated on multiple default direction of propagation; And control module, configuration controls the modulation of described beam forming unit.
In addition, according to one embodiment of present invention, wherein by described signal madulation signal, the step that the signal that signal source is launched is modulated is comprised further: described control module is for each direction of propagation in described multiple default direction of propagation, control described beam forming unit with different coded systems and be modulated at hyperacoustic coding on each direction of propagation described, make the modulated ultrasound wave packages on multiple default direction of propagation containing different coded messages as unique identification information.
In addition, according to one embodiment of present invention, unique identification information that wherein said modulated ultrasound wave comprises is used to indicate the direction of described modulated ultrasound wave relative to described terminal device.
Accompanying drawing explanation
Figure 1A is the schematic block diagram of diagram according to the terminal device of the embodiment of the present invention;
Figure 1B is the close-up schematic view of the terminal device according to the embodiment of the present invention; And
Fig. 2 is the schematic flow diagram of diagram according to the signal modulating method of the embodiment of the present invention.
Embodiment
Describe in detail with reference to the accompanying drawings according to each embodiment of the present invention.Here it is to be noted that it in the accompanying drawings, identical Reference numeral is given there is identical or similar structures and function ingredient substantially, and the repeated description of will omit about them.
Below, with reference to Fig. 1, the terminal device according to the embodiment of the present invention is described.Here, according to the terminal device of the embodiment of the present invention can be the terminal device of such as smart mobile phone, panel computer, intelligent desktop, notebook, PC and so on.
According to one embodiment of present invention, as shown in Figure 1A, terminal device 1 can comprise housing 10, signal source 11 and signal madulation unit 12.
Housing 10 can be made up of arbitrary material.
Signal source 11, signal source 11 can be arranged in the particular surface of housing 10, and may be used for broadcast singal.
Signal madulation unit 12 can correspondingly with signal source 11 be arranged.According to embodiments of the invention, signal madulation unit 12 may be used under signal emission mode, the signal that signal source 11 is launched is modulated, make have predetermined interval, relative on the multiple default direction of propagation of signal source 11, modulated signal comprises the unique identification information relevant to the corresponding direction of propagation.
Particularly, will be infrared light supply with signal source for example is described.
According to one embodiment of present invention, signal source 11 can be infrared light supply.Here, infrared light supply can be the infrared light supply of such as infrared lamp and so on, and can produce (broadcast) infrared light.According to the present embodiment, as shown in Figure 1A, signal source 11 can be arranged on the side frame place, lower right side of terminal device 1 (e.g., in Figure 1A) of terminal device.
As shown in Figure 1B, according to the present embodiment, signal madulation unit 12 can comprise: the liquid crystal layer/panel 121 arranged around infrared light sources and control module 122.The curvature of liquid crystal layer/panel 121 can be configured, make liquid crystal layer/panel 121 wrap up this signal source 11.Liquid crystal layer 121 can have multiple pixel.Here, because the position of the different pixels in liquid crystal layer 121 is different, each pixel in liquid crystal layer 121 can be corresponding respectively with multiple default direction of propagation respectively.According to embodiments of the invention, signal source 11 can be arranged on terminal device 1 lower right side (as, the bottom right frame of terminal device 1 is inner), and liquid crystal layer 121 can be arranged on position corresponding with the position of signal source 11 on the front surface of terminal device 1, rear surface and frame, with around signal source 11.In addition, liquid crystal layer 121 can also realize (in spherical calotte or curved surface) by flexible screen technology, and surrounds signal source 11.By such configuration, can the coverage of signal that sends of signal source 11 large as much as possible.In addition, the present invention is not limited thereto, in order to realize the coverage of 360 degree, other signal source 11 and signal madulation unit 12 can also be set in other position.Such as, can also another signal source and signal madulation unit be set for the side frame place that take of terminal device 1 in figure ia.In addition, can also a signal source and signal madulation unit be set respectively in the front and rear surfaces of terminal device 1, or signalization source and signal madulation unit can also be distinguished with the coverage in maximum signal source on the left and right of terminal device 1 and/or upper and lower side frame.
Control module 122 can be arbitrary processor or microprocessor, and control module 122 is connected with liquid crystal layer, and can control the transmission/non-transmissive state of each pixel cell on liquid crystal layer 121.Here, the function of control module 122 by the processor of liquid crystal panel controller or terminal device 1 based on the software simulating preset in the firmware be preset in wherein or terminal device 1, and can perform according to firmware wherein or default software the function preset.According to embodiments of the invention, start signal emission mode at terminal device 1 (to be inputted by user or specific applications trigger, and for equipment room location) when, control module 122 for each direction of propagation in multiple default direction of propagation, can control the transmission/non-transmissive state of pixel corresponding with each direction of propagation on liquid crystal layer 121 respectively with different type of drive.Here, transmission/non-transmissive state due to each pixel on liquid crystal layer 121 can cause passing through/shielding of the infrared light being irradiated to this pixel, and the passing through of infrared light/shielding can make infrared light comprise coded message (using infrared light as the coding of carrier), therefore, can configure/compile the transmission/non-transmissive state of software to each pixel on liquid crystal layer 121 preset in the firmware or terminal device 1 be preset in wherein to control, make within the predetermined cycle, the coded signal that the transmission/non-transmissive state of each pixel on liquid crystal layer 121 alternately causes infrared light (pass through/shield) to comprise is unique, different coded signals is made to correspond respectively to pixels different on liquid crystal layer 121, and correspond respectively to the different directions of propagation of infrared light.That is, on multiple default direction of propagation through modulation (by/shielding) infrared light comprise different coded messages as unique identification information.Such as, suppose liquid crystal layer 121 there are 256 pixels, then can arrange 256 different 8 activation bits (as, 1 represents pixel transmission state, 0 represents pixel non-transmissive state), transmission/the non-transmissive state of each pixel on liquid crystal layer 121 within the predetermined cycle (e.g., 0.1 second) is made to replace rule all different, with the direction of propagation (256 directions) of the unique identification infrared light corresponding with this pixel.In addition, if liquid crystal layer 121 there are 1024 pixels, then can arrange 1024 different 10 activation bits makes the coded message of the infrared light of the different pixels corresponded on liquid crystal layer 121 all different, with the direction of propagation (256 directions) of the unique identification infrared light corresponding with this pixel.Here, can need according to concrete precision to arrange the pixel quantity on liquid crystal layer 121, and the activation bit of corresponding figure place is provided based on the pixel quantity on liquid crystal layer 121, thus the coded message of the infrared light of the different pixels corresponded on liquid crystal layer 121 can be made all different.
According to the present embodiment, when modulated infrared light is received by another terminal device, unique identification information that this another terminal device can comprise based on modulated infrared light determines the direction of another terminal device relative to terminal device 1.Particularly, this another terminal device can comprise and can be arranged on (usually in front) infrared light receiving element on the arbitrary surfaces of another terminal device.In this case, another terminal device receives the infrared light comprising unique identification information by infrared light receiving element.Here, as previously described, because the infrared light on the different direction of propagation comprises the identification information of uniquely (difference), therefore this another terminal device can calculate the source direction of infrared light by this unique identification information, thus can determine the direction of this another terminal device relative to terminal device 1.Here, if terminal device 1(its also can comprise infrared light receiving element) and this another terminal device be same brand or support uniform product, then can preset in terminal device 1 with another terminal device when dispatching from the factory the information relevant to the direction of propagation of the infrared light representated by multiple unique identification (as, map the mapping table of unique identification and the direction of propagation), terminal device 1 and another terminal device all can determine the direction of propagation of received infrared light according to the information preset thus.In addition, terminal device 1 and the pairing of another terminal device (as, by bluetooth or WIFI) period, above-mentioned information can also be shared between, with the direction of propagation making terminal device 1 and another terminal device can determine received infrared light according to the information shared.
In addition, when the infrared light receiving element (due to its receiving area) of another terminal device receives the infrared light on the different direction of propagation, another terminal device can obtain multiple direction of propagation based on the unique identification of the infrared light on the plurality of direction of propagation, and come the direction (such as, get the intermediate value of multiple directions or third side to) of computing terminal equipment 1 relative to another terminal device based on multiple direction of propagation.In addition, when the infrared light receiving element of another terminal device receives the infrared light on the different direction of propagation, another terminal device by the unique identification in the infrared light received the earliest to determine the direction of propagation of this infrared light, can determine the direction of this another terminal device relative to terminal device 1 thus.Do the generation can avoiding the false judgment caused when multiple reflections (e.g., wall reflection) arrives another terminal device at infrared light like this.
In addition, according to another embodiment of the invention, the signal source 11(infrared light supply to terminal device 1 can also be prestored in another terminal device) the relevant information of power.Here, the intensity due to infrared light is relevant to the length of the power of signal source 11 and the travel path of infrared light.In this case, when the infrared light propagated in particular directions is received by the infrared light receiving element of another terminal device, the intensity of infrared light that this another terminal device can receive according to infrared light receiving element and the power of signal source 11 calculate the distance (range finding) between this another terminal device and terminal device 1.In addition, terminal device 1 and the pairing of another terminal device (as, by bluetooth or WIFI) period, above-mentioned power information can also be shared between, with the distance making another terminal device can determine between terminal device 1 and this another terminal device according to this power information.
By above-mentioned configuration, terminal device 1 by providing unique mark on the different directions of propagation of the signal of signal source 11, the unique identification that other terminal device receiving signal can be comprised based on signal determines the orientation between itself and terminal device 1, and the distance can determining therebetween based on signal intensity.Here, because terminal device 1 and other terminal device do not need multiple receiving element to determine orientation therebetween and distance, can be applied to thus on the terminal device of miniaturization.
In addition, according to another embodiment of the invention, signal source can also be ultrasonic wave generator unit, and it can produce ultrasound wave.Here, signal madulation unit can comprise: beam forming unit and control module.Similar with the description for Fig. 1, beam forming unit is around (encirclement) ultrasonic wave generator unit.Beam forming unit can be Multibeam synthesis unit, and it can modulate the hyperacoustic coding on multiple default direction of propagation.In addition, control module can be realized by arbitrary processor or microprocessor, and can control the modulation of this beam forming unit.
Similar with the description for Fig. 1, the function of control module by the processor of liquid crystal panel controller or terminal device 1 based on the software simulating preset in the firmware be preset in wherein or terminal device 1, and can perform according to firmware wherein or default software the function preset.(inputted by user or specific applications trigger when terminal device 1 starts signal emission mode, for equipment room location), control module can for each direction of propagation in multiple default direction of propagation, the hyperacoustic coding on each direction of propagation is modulated at different type of drive control beam forming unit, make preset cycle (as, 0.1 second) on, the modulated ultrasound wave packages on multiple default direction of propagation contains different coded messages as unique identification information.Here, can by using multi-beam Formation Technologies, the coding for the different direction of propagation according to presetting drives beam forming unit, makes on the multiple different direction of propagation of presetting, and hyperacoustic coded message is all different from this direction of propagation of unique identification.
Then, according to the present embodiment, when modulated ultrasound wave is received by another terminal device, this another terminal device determines the direction of another terminal device relative to terminal device 1 based on unique identification information that modulated ultrasound wave comprises.Particularly, this another terminal device can comprise can be arranged on another terminal device arbitrary surfaces (being generally front) on ultrasonic wave receive unit.In this case, another terminal device receives the ultrasound wave comprising unique identification information by ultrasonic wave receive unit.Here, as previously described, because the ultrasound wave packages on the different direction of propagation is containing the identification information of unique (difference), therefore this another terminal device can calculate hyperacoustic source direction by this unique identification information, thus can determine the direction of this another terminal device relative to terminal device 1.Here, can preset in terminal device 1 with another terminal device when dispatching from the factory the information relevant to the hyperacoustic direction of propagation representated by multiple unique identification (as, map the mapping table of unique identification and the direction of propagation), terminal device 1 and another terminal device all can determine received hyperacoustic direction of propagation according to the information preset thus.In addition, terminal device 1 and the pairing of another terminal device (as, by bluetooth or WIFI) period, above-mentioned information can also be shared between, received hyperacoustic direction of propagation can be determined according to the information preset to make terminal device 1 and another terminal device.
In addition, in hyperacoustic situation that the ultrasonic wave receive unit of another terminal device receives on the different direction of propagation, another terminal device by the unique identification in the ultrasound wave received the earliest to determine this hyperacoustic direction of propagation, can determine the direction of this another terminal device relative to terminal device 1 thus.Do the generation can avoiding the false judgment caused when multiple reflections (e.g., wall reflection) arrives another terminal device at ultrasound wave like this.In addition, similarly, the signal source 11(ultrasound wave generating unit to terminal device 1 can also be prestored in another terminal device) the relevant information of power.Here, because hyperacoustic intensity is relevant to the power of signal source 11 and the length of hyperacoustic travel path.In this case, when the ultrasound wave propagated in particular directions is received by the ultrasonic wave receive unit of another terminal device, the power of hyperacoustic intensity that this another terminal device can receive according to ultrasonic wave receive unit and signal source 11 calculates the distance (range finding) between this another terminal device and terminal device 1.In addition, terminal device 1 and the pairing of another terminal device (as, by bluetooth or WIFI) period, above-mentioned power information can also be shared between, with the distance making another terminal device can determine between terminal device 1 and this another terminal device according to this power information.
Below, with reference to Fig. 2, the signal modulating method according to the embodiment of the present invention is described.Here, the signal modulating method of Fig. 2 can be applied on terminal device as shown in Figure 1.This terminal device can comprise: housing; Be arranged at least one signal source in the particular surface of housing; The signal madulation unit that arrange corresponding at least one signal source.
As shown in Figure 2, in step S201, judge the present mode of terminal device.
Particularly, control module 122 can determine whether terminal device 1 starts signal emission mode.Here, this signal emission mode can be inputted (e.g., touch button) or specific application (position application) triggering by user.Here, if control module 122 detects above-mentioned triggering, then control module 122 judges to need enabling signal emission mode.
Then, in step S202, if terminal device is in signal emission mode, then the signal that signal source is launched is modulated, make have predetermined interval, relative on the multiple default direction of propagation of at least one signal source, modulated signal comprises the unique identification information relevant to the corresponding direction of propagation.
Particularly, be that in the embodiment of infrared light supply, signal madulation unit 12 comprises in signal source 11: the liquid crystal layer/panel 121 arranged around infrared light sources and control module 122.Liquid crystal layer/panel 121 wraps up this signal source 11.Here, liquid crystal layer 121 has multiple pixel, and its each pixel can be corresponding respectively with multiple default direction of propagation respectively.Such as, signal source 11 can be arranged on the lower right side (e.g., the bottom right frame of terminal device 1 is inner) of terminal device 1, and liquid crystal layer 121 surrounds signal source 11 on the position of correspondence.In addition, liquid crystal layer 121 can also realize (in spherical calotte or curved surface) by flexible screen technology, and surrounds signal source 11.In addition, other signal source 11 and signal madulation unit 12 can also be set in other position.
Control module 122 is connected with liquid crystal layer, and can control the transmission/non-transmissive state of each pixel cell on liquid crystal layer 121.In this case, step S302 may further include: control module is for each direction of propagation in multiple default direction of propagation, control the transmission/non-transmissive state of pixel corresponding with each direction of propagation on liquid crystal layer with different type of drive respectively, make the modulated infrared light on multiple default direction of propagation comprise different coded messages as unique identification information.
Particularly, transmission/non-transmissive state due to each pixel on liquid crystal layer 121 can cause passing through/shielding of the infrared light being irradiated to this pixel, and the passing through of infrared light/shielding can make infrared light comprise coded message (using infrared light as the coding of carrier), therefore, under terminal device is in signal emission mode, transmission/the non-transmissive state of each pixel on control module 122 pairs of liquid crystal layers 121 controls, make within the predetermined cycle, the coded signal that the transmission/non-transmissive state of each pixel on liquid crystal layer 121 alternately causes infrared light (pass through/shield) to comprise is unique, different coded signals is made to correspond respectively to pixels different on liquid crystal layer 121, and correspond respectively to the different directions of propagation of infrared light.That is, the infrared light through modulation (by/shielding) on multiple default direction of propagation comprises different coded messages as unique identification information, and this unique identification is used to indicate the direction of modulated infrared light relative to terminal device 1.Such as, suppose liquid crystal layer 121 there are 256 pixels, then can arrange 256 different 8 activation bits (as, 1 represents pixel transmission state, 0 represents pixel non-transmissive state), transmission/the non-transmissive state of each pixel on liquid crystal layer 121 within the predetermined cycle (e.g., 0.1 second) is made to replace rule all different, with the direction of propagation (256 directions) of the unique identification infrared light corresponding with this pixel.Here, can need according to concrete precision to arrange the pixel quantity on liquid crystal layer 121, and the activation bit of corresponding figure place is provided based on the pixel quantity on liquid crystal layer 121, thus the coded message of the infrared light of the different pixels corresponded on liquid crystal layer 121 can be made all different.
In this case, when modulated infrared light is received by another terminal device, unique identification information that this another terminal device can comprise based on modulated infrared light determines the direction of another terminal device relative to terminal device 1.Here, can arrange in another terminal device in advance the information relevant to the direction of propagation of the infrared light representated by multiple unique identification (as, map the mapping table of unique identification and the direction of propagation), another terminal device all can determine the direction of propagation of received infrared light according to the information preset thus.In addition, terminal device 1 and the pairing of another terminal device (as, by bluetooth or WIFI) period, above-mentioned information can also be shared between, with the direction of propagation making terminal device 1 and another terminal device can determine received infrared light according to the information shared.In addition, (can be arranged on the arbitrary surfaces of another terminal device at the infrared light receiving element of another terminal device, be generally front) when receiving the infrared light on the different direction of propagation, another terminal device can obtain multiple direction of propagation based on the unique identification of the infrared light on the plurality of direction of propagation, and come the direction (such as, get the intermediate value of multiple directions or third side to) of computing terminal equipment 1 relative to another terminal device based on multiple direction of propagation.In addition, when the infrared light receiving element of another terminal device receives the infrared light on the different direction of propagation, another terminal device by the unique identification in the infrared light received the earliest to determine the direction of propagation of this infrared light, can determine the direction of this another terminal device relative to terminal device 1 thus.Do the generation can avoiding the false judgment caused when multiple reflections (e.g., wall reflection) arrives another terminal device at infrared light like this.In addition, according to another embodiment of the invention, the signal source 11(infrared light supply to terminal device 1 can also be prestored in another terminal device) the relevant information of power.In this case, when the infrared light propagated in particular directions is received by the infrared light receiving element of another terminal device, the intensity of infrared light that this another terminal device can receive according to infrared light receiving element and the power of signal source 11 calculate the distance (range finding) between this another terminal device and terminal device 1.In addition, above-mentioned power information can be shared at terminal device 1 and another terminal device pairing (e.g., by bluetooth or WIFI) period.
In addition, be that in the embodiment of ultrasonic wave generator unit, signal madulation unit can comprise in signal source 11: beam forming unit and control module.Here, beam forming unit is around (encirclement) ultrasonic wave generator unit.Beam forming unit can be Multibeam synthesis unit, and it can modulate the hyperacoustic coding on multiple default direction of propagation.In addition, control module can control the modulation of this beam forming unit.
In this case, step S202 may further include: control module is for each direction of propagation in multiple default direction of propagation, the hyperacoustic coding on each direction of propagation is modulated at different type of drive control beam forming unit, make preset cycle (as, 0.1 second) on, the modulated ultrasound wave packages on multiple default direction of propagation contains different coded messages as unique identification information.Here, can by using multi-beam Formation Technologies, the coding for the different direction of propagation according to presetting drives beam forming unit, make on the multiple different direction of propagation of presetting, hyperacoustic coded message is all different from this direction of propagation of unique identification, namely, unique identification information that modulated ultrasound wave comprises may be used for the direction indicating modulated ultrasound wave relative to terminal device 1.
In this case, when modulated ultrasound wave is received by another terminal device, unique identification information that this another terminal device can comprise based on modulated ultrasound wave determines the direction of another terminal device relative to terminal device 1.Here, can preset in terminal device 1 with another terminal device when dispatching from the factory the information relevant to the hyperacoustic direction of propagation representated by multiple unique identification (as, map the mapping table of unique identification and the direction of propagation), thus, another terminal device all can determine received hyperacoustic direction of propagation according to the information preset.In addition, terminal device 1 and the pairing of another terminal device (as, by bluetooth or WIFI) period, above-mentioned information can also be shared between, received hyperacoustic direction of propagation can be determined according to the information preset to make terminal device 1 and another terminal device.In addition, in hyperacoustic situation that the ultrasonic wave receive unit of another terminal device receives on the different direction of propagation, another terminal device by the unique identification in the ultrasound wave received the earliest to determine this hyperacoustic direction of propagation, can determine the direction of this another terminal device relative to terminal device 1 thus.Do the generation can avoiding the false judgment caused when multiple reflections (e.g., wall reflection) arrives another terminal device at ultrasound wave like this.In addition, similarly, the signal source 11(ultrasound wave generating unit to terminal device 1 can also be prestored in another terminal device) the relevant information of power.Here, because hyperacoustic intensity is relevant to the power of signal source 11 and the length of hyperacoustic travel path.In this case, when the ultrasound wave propagated in particular directions is received by the ultrasonic wave receive unit of another terminal device, the power of hyperacoustic intensity that this another terminal device can receive according to ultrasonic wave receive unit and signal source 11 calculates the distance (range finding) between this another terminal device and terminal device 1.In addition, terminal device 1 and the pairing of another terminal device (as, by bluetooth or WIFI) period, above-mentioned power information can also be shared between, with the distance making another terminal device can determine between terminal device 1 and this another terminal device according to this power information.
Each embodiment of the present invention is described in detail above.But, it should be appreciated by those skilled in the art that without departing from the principles and spirit of the present invention, various amendment can be carried out to these embodiments, combination or sub-portfolio, and such amendment should fall within the scope of the present invention.
Claims (16)
1. a terminal device, comprising:
Housing;
At least one signal source, is arranged at least first surface of described housing, and configuration carrys out broadcast singal;
The signal madulation unit that arrange corresponding at least one signal source described, configuration comes under signal emission mode, the signal that signal source is launched is modulated, make have predetermined interval, relative on the multiple default direction of propagation of at least one signal source described, described modulated signal comprises the unique identification information relevant to the corresponding direction of propagation.
2. terminal device as claimed in claim 1, wherein
At least one signal source described is infrared light supply, and configuration produces infrared light; And
Described signal madulation unit, comprising:
Around the liquid crystal layer that described infrared light sources is arranged, described liquid crystal layer has multiple pixel, and the pixel cell of described multiple default directions of propagation respectively from different is corresponding; And
Control module, configuration controls the transmission/non-transmissive state of each pixel cell on described liquid crystal layer.
3. terminal device as claimed in claim 2, wherein
Described control module is for each direction of propagation in described multiple default direction of propagation, control the transmission/non-transmissive state of pixel corresponding with each direction of propagation described on described liquid crystal layer with different coded systems respectively, make the modulated infrared light on multiple default direction of propagation comprise different coded messages as unique identification information.
4. terminal device as claimed in claim 3, wherein
When described modulated infrared light is received by another terminal device, another terminal device described determines the direction of another terminal device described relative to described terminal device based on unique identification information that described modulated infrared light comprises.
5. terminal device as claimed in claim 4, wherein
Another terminal device described prestores the information relevant to the power of described infrared light supply; And
When being received by another terminal device described, the intensity of described infrared light is for judging described distance between another terminal device and described terminal device.
6. terminal device as claimed in claim 1, wherein
At least one signal source described is ultrasonic wave generator unit, and configuration produces ultrasound wave; And
Described signal madulation unit, comprising:
Around the beam forming unit of described ultrasonic wave generator unit, configure the hyperacoustic coding modulated on multiple default direction of propagation; And
Control module, configuration controls the modulation of described beam forming unit.
7. terminal device as claimed in claim 6, wherein
Described control module is for each direction of propagation in described multiple default direction of propagation, control described beam forming unit with different coded systems and be modulated at hyperacoustic coding on each direction of propagation described, make the modulated ultrasound wave packages on multiple default direction of propagation containing different coded messages as unique identification information.
8. terminal device as claimed in claim 7, wherein
When described modulated ultrasound wave is received by another terminal device, another terminal device described determines the direction of another terminal device described relative to described terminal device based on unique identification information that described modulated ultrasound wave comprises.
9. terminal device as claimed in claim 8, wherein
Another terminal device described prestores the information relevant to the power that described ultrasound wave produces; And
When being received by another terminal device described, described hyperacoustic intensity is for judging described distance between another terminal device and described terminal device.
10. a signal modulating method, is applied to terminal device, and described terminal device comprises: housing; At least one signal source, is arranged at least first surface of described housing; The signal madulation unit that arrange corresponding at least one signal source described, described signal modulating method comprises:
Judge the present mode of described terminal device;
If described terminal device is in signal emission mode, then the signal that signal source is launched is modulated, make have predetermined interval, relative on the multiple default direction of propagation of at least one signal source described, described modulated signal comprises the unique identification information relevant to the corresponding direction of propagation.
11. methods as claimed in claim 10, wherein
At least one signal source described is infrared light supply, and configuration produces infrared light; And
Described signal madulation unit comprises the liquid crystal layer arranged around described infrared light sources, and described liquid crystal layer has multiple pixel, and the pixel cell of described multiple default directions of propagation respectively from different is corresponding; And control module, configuration controls the transmission/non-transmissive state of each pixel cell on described liquid crystal layer.
12. signal modulating methods as claimed in claim 11, the step that the signal wherein launched signal source is modulated comprises further:
Described control module is for each direction of propagation in described multiple default direction of propagation, control the transmission/non-transmissive state of pixel corresponding with each direction of propagation described on described liquid crystal layer with different coded systems respectively, make the modulated infrared light on multiple default direction of propagation comprise different coded messages as unique identification information.
13. methods as claimed in claim 12, wherein
Unique identification information that described modulated infrared light comprises is used to indicate the direction of described modulated infrared light relative to described terminal device.
14. methods as claimed in claim 10, wherein
At least one signal source described is ultrasonic wave generator unit, and configuration produces ultrasound wave; And
Described signal madulation unit comprises the beam forming unit around described ultrasonic wave generator unit, configures the hyperacoustic coding modulated on multiple default direction of propagation; And control module, configuration controls the modulation of described beam forming unit.
15. methods as claimed in claim 11, the step that the signal wherein launched signal source is modulated comprises further:
Described control module is for each direction of propagation in described multiple default direction of propagation, control described beam forming unit with different coded systems and be modulated at hyperacoustic coding on each direction of propagation described, make the modulated ultrasound wave packages on multiple default direction of propagation containing different coded messages as unique identification information.
16. methods as claimed in claim 15, wherein
Unique identification information that described modulated ultrasound wave comprises is used to indicate the direction of described modulated ultrasound wave relative to described terminal device.
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| CN201310403596.5A CN104422920B (en) | 2013-09-06 | 2013-09-06 | Terminal equipment and signal modulating method thereof |
| US14/090,151 US9575590B2 (en) | 2012-11-27 | 2013-11-26 | Input method and input apparatus |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101884248A (en) * | 2007-06-18 | 2010-11-10 | 皇家飞利浦电子股份有限公司 | Direction controllable lighting unit |
| CN101989379A (en) * | 2009-07-31 | 2011-03-23 | 宁波家天下智能系统有限公司 | Learning method and transmitting method of infrared cod signal and remote controller |
| CN102055836A (en) * | 2009-11-04 | 2011-05-11 | Tcl集团股份有限公司 | Mobile terminal with action recognition function and action recognition method thereof |
| US20110128254A1 (en) * | 2009-05-29 | 2011-06-02 | Sony Corporation | Touch sensor, display and electronic device |
| WO2012066541A2 (en) * | 2010-11-16 | 2012-05-24 | Epos Development Ltd. | System and method for object position estimation based on ultrasonic reflected signals |
-
2013
- 2013-09-06 CN CN201310403596.5A patent/CN104422920B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101884248A (en) * | 2007-06-18 | 2010-11-10 | 皇家飞利浦电子股份有限公司 | Direction controllable lighting unit |
| US20110128254A1 (en) * | 2009-05-29 | 2011-06-02 | Sony Corporation | Touch sensor, display and electronic device |
| CN101989379A (en) * | 2009-07-31 | 2011-03-23 | 宁波家天下智能系统有限公司 | Learning method and transmitting method of infrared cod signal and remote controller |
| CN102055836A (en) * | 2009-11-04 | 2011-05-11 | Tcl集团股份有限公司 | Mobile terminal with action recognition function and action recognition method thereof |
| WO2012066541A2 (en) * | 2010-11-16 | 2012-05-24 | Epos Development Ltd. | System and method for object position estimation based on ultrasonic reflected signals |
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