CN104422920B - Terminal equipment and signal modulating method thereof - Google Patents
Terminal equipment and signal modulating method thereof Download PDFInfo
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- CN104422920B CN104422920B CN201310403596.5A CN201310403596A CN104422920B CN 104422920 B CN104422920 B CN 104422920B CN 201310403596 A CN201310403596 A CN 201310403596A CN 104422920 B CN104422920 B CN 104422920B
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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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- Computer Networks & Wireless Communication (AREA)
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- Radar, Positioning & Navigation (AREA)
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Abstract
The invention discloses terminal equipment and a signal modulating method. 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 its signal modulating method.
Background technology
Currently, with the development of equipment room interaction technique, accurately the mutual location technology of equipment becomes more and more important.Existing
Have in technology and a kind of ultrasonic technology has been proposed, wherein setting the reception of at least two ultrasonic waves on specific terminal device
Unit, sends super by the distance of at least two ultrasonic waves receiving unit, the two time for receiving signal or intensity to calculate
The orientation of another equipment of acoustic signals.However, the technology depends on the distance between at least two ultrasonic waves receiving unit,
If distance therebetween is close, the orientation of another equipment cannot be precisely calculated.Accordingly, it would be desirable to this at least two is surpassed
The distance between acoustic receiver unit is set must be than larger.In this case, the technology cannot be applied on small-size equipment
It is accurately positioned with to miscellaneous equipment.
The content of the invention
In order to solve above-mentioned technical problem of the prior art, according to an aspect of the present invention, there is provided a kind of terminal device,
Including：Housing；At least one signal source, is arranged at least first surface of the housing, and configuration carrys out broadcast singal；With it is described
The signal modulation unit that at least one signal source is correspondingly arranged, configuration comes under signal emission mode, to the letter of signal source transmitting
Number be modulated so that it is with predetermined interval, preset on the direction of propagation relative to the multiple of at least one signal source,
The modulated signal includes the unique identification information related to the corresponding direction of propagation.
Additionally, according to one embodiment of present invention, wherein at least one signal source is infrared light supply, configuring to produce
Raw infrared light；And the signal modulation unit, including：Around the liquid crystal layer that the infrared light sources are set, the liquid crystal layer
With multiple pixels, and the multiple default direction of propagation is corresponding from different pixel cells respectively；And control unit, match somebody with somebody
Put to control the transmission/non-transmissive state of each pixel cell on the liquid crystal layer.
Additionally, according to one embodiment of present invention, wherein described control unit is directed to the multiple default direction of propagation
In each direction of propagation, with different coded systems control respectively on the liquid crystal layer with described each direction of propagation pair
Transmission/the non-transmissive state of the pixel answered so that the modulated infrared light on the default direction of propagation of multiple is comprising different
Coding information is used as unique identification information.
Additionally, according to one embodiment of present invention, wherein being connect by another terminal device in the modulated infrared light
Time receiving, another terminal device is determined described another based on unique identification information that the modulated infrared light is included
Direction of the terminal device relative to the terminal device.
Additionally, according to one embodiment of present invention, wherein another terminal device is prestored and the infrared light
The related information of the power in source；And when being received by another terminal device, the intensity of the infrared light is used to judge institute
State the distance between another terminal device and described terminal device.
Additionally, according to one embodiment of present invention, wherein at least one signal source is ultrasonic wave generator unit, matching somebody with somebody
Put to produce ultrasonic wave；And the signal modulation unit, including：Around the Wave beam forming list of the ultrasonic wave generator unit
Unit, configures to modulate the codings of the ultrasonic wave on multiple default directions of propagation；And control unit, configure to control the wave beam
Form the modulation of unit.
Additionally, according to one embodiment of present invention, wherein described control unit is directed to the multiple default direction of propagation
In each direction of propagation, control the beam forming unit to be modulated at described each propagation side with different coded system
The coding of upward ultrasonic wave so that the modulated ultrasound wave packages on the default direction of propagation of multiple contain different coding informations
As unique identification information.
Additionally, according to one embodiment of present invention, wherein being connect by another terminal device in the modulated ultrasonic wave
Time receiving, another terminal device is determined described another based on unique identification information that the modulated ultrasonic wave is included
Direction of the terminal device relative to the terminal device.
Additionally, according to one embodiment of present invention, wherein another terminal device is prestored and the ultrasonic wave
The related information of the power of generation；And when being received by another terminal device, the intensity of the ultrasonic wave is used to judge
The distance between another terminal device and described terminal device.
In addition, according to another aspect of the present invention, there is provided a kind of signal modulating method, terminal device, the end are applied to
End equipment includes：Housing；At least one signal source, is arranged at least first surface of the housing；With described at least one
The signal modulation unit that signal source is correspondingly arranged, the signal modulating method includes：Judge the present mode of the terminal device；
If the terminal device is in signal emission mode, the signal that signal source is launched is carried out by the signal modulation signal
Modulation so that it is with predetermined interval, relative at least one signal source multiple preset the direction of propagation on, the warp
The signal of modulation includes the unique identification information related to the corresponding direction of propagation.
Additionally, according to one embodiment of present invention, wherein at least one signal source is infrared light supply, configuring to produce
Raw infrared light；And the signal modulation unit includes the liquid crystal layer set around the infrared light sources, the liquid crystal layer tool
There are multiple pixels, and the multiple default direction of propagation is corresponding from different pixel cells respectively；And control unit, configuration
To control the transmission/non-transmissive state of each pixel cell on the liquid crystal layer.
Additionally, according to one embodiment of present invention, wherein the letter launched signal source by the signal modulation signal
The step of number being modulated further includes：Described control unit is for each propagation in the multiple default direction of propagation
Direction, the saturating of pixel corresponding with described each direction of propagation on the liquid crystal layer is controlled with different coded systems respectively
Penetrate/non-transmissive state so that the modulated infrared light on the default direction of propagation of multiple includes different coding information conducts
Unique identification information.
Additionally, according to one embodiment of present invention, wherein unique mark that the modulated infrared light is included
Information is used to indicate the modulated infrared light relative to the direction of the terminal device.
Additionally, according to one embodiment of present invention, wherein at least one signal source is ultrasonic wave generator unit, matching somebody with somebody
Put to produce ultrasonic wave；And the signal modulation unit includes the beam forming unit around the ultrasonic wave generator unit,
Configure to modulate the coding of the ultrasonic wave on multiple default directions of propagation；And control unit, configure to control the wave beam shape
Into the modulation of unit.
Additionally, according to one embodiment of present invention, wherein the letter launched signal source by the signal modulation signal
The step of number being modulated further includes：Described control unit is for each propagation in the multiple default direction of propagation
Direction, the ultrasonic wave being modulated at the different coded system control beam forming units on described each direction of propagation
Coding so that the modulated ultrasound wave packages on the default direction of propagation of multiple are containing different coding informations as unique mark
Information.
Additionally, according to one embodiment of present invention, wherein unique mark that the modulated ultrasonic wave is included
Information is used to indicate the modulated ultrasonic wave relative to the direction of the terminal device.
Brief description of the drawings
Figure 1A is the schematic block diagram of diagram terminal device according to embodiments of the present invention；
Figure 1B is the close-up schematic view of terminal device according to embodiments of the present invention；And
Fig. 2 is the schematic flow diagram of diagram signal modulating method according to embodiments of the present invention.
Specific embodiment
Will be described in detail with reference to the accompanying drawings each embodiment of the invention.Here it is to be noted that it in the accompanying drawings,
The substantially part with same or like 26S Proteasome Structure and Function is assigned by identical reference, and will be omitted on it
Repeated description.
Terminal device according to embodiments of the present invention is described next, with reference to Fig. 1.Here, it is according to embodiments of the present invention
Terminal device can be the terminal device of such as smart mobile phone, panel computer, intelligence desktop, notebook, PC etc.
According to one embodiment of present invention, as shown in Figure 1A, terminal device 1 can include housing 10, signal source 11 with
And signal modulation 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 can be used for broadcast singal.
Signal modulation unit 12 can be correspondingly arranged with signal source 11.Embodiments in accordance with the present invention, signal modulation unit
12 can be used under signal emission mode, to signal source 11 transmitting signal be modulated so that it is with predetermined interval,
Multiple relative to signal source 11 is preset on the direction of propagation, and modulated signal is comprising related to the corresponding direction of propagation unique
Identification information.
Specifically, will be described so that signal source is as infrared light supply as an example.
According to one embodiment of present invention, signal source 11 can be infrared light supply.Here, infrared light supply can be such as
The infrared light supply of infrared lamp etc, 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 of terminal device（Such as, in Figure 1A at the bottom right side frame of terminal device 1）.
As shown in Figure 1B, according to the present embodiment, signal modulation unit 12 can include：Around the liquid that infrared light sources are set
Crystal layer/panel 121 and control unit 122.The curvature of liquid crystal layer/panel 121 can be configured so that liquid crystal layer/panel 121 is wrapped
Wrap up in the signal source 11.Liquid crystal layer 121 can have multiple pixels.Here, due to the different pixels in liquid crystal layer 121 position not
Together, each pixel in liquid crystal layer 121 can be corresponding respectively with the default direction of propagation of multiple respectively.Implementation of the invention
Example, signal source 11 can be arranged on the lower right side of terminal device 1（Such as, inside the bottom right frame of terminal device 1）, and liquid crystal
Layer 121 can be arranged on position corresponding with the position of signal source 11 on the preceding surface of terminal device 1, rear surface and frame
On, with around signal source 11.Additionally, liquid crystal layer 121 can also be realized by flexible screen technology（In spherical calotte or curved surface）,
And surround signal source 11.By being configured so that, the coverage of the signal that can be sent with signal source 11 is big as far as possible.This
Outward, the invention is not restricted to this, in order to realize 360 degree of coverage, other signal sources 11 can also be set in other positions
And signal modulation unit 12.For example, it is also possible in figure ia terminal device 1 take at side frame set another signal source with
And signal modulation unit.Further, it is also possible to be respectively provided with a signal source and signal modulation in the front and rear surfaces of terminal device 1
Unit, or signal source and signal modulation unit can also be respectively provided with the left and right of terminal device 1 and/or upper and lower side frame
To maximize the coverage of signal source.
Control unit 122 can be arbitrary processor or microprocessor, and control unit 122 is connected with liquid crystal layer, and
Transmission/the non-transmissive state of each pixel cell on liquid crystal layer 121 can be controlled.Here, the function of control unit 122 can be with
It is default soft in being based on being preset in firmware therein or terminal device 1 by the processor of liquid crystal panel controller or terminal device 1
Part is realized, and can perform default function according to firmware therein or default software.Embodiments in accordance with the present invention,
Terminal device 1 starts signal emission mode（By user input or specific applications trigger, and for equipment room positioning）Feelings
Under condition, control unit 122 can be directed to each direction of propagation in multiple default directions of propagation, with different type of drive point
Not Kong Zhi on liquid crystal layer 121 pixel corresponding with each direction of propagation transmission/non-transmissive state.Here, due to liquid crystal layer
Transmission/the non-transmissive state of each pixel on 121 can cause to be irradiated to passing through/shielding for the infrared light of the pixel, and
The passing through/shield of infrared light can make infrared light include coding information（Using infrared light as the coding of carrier）, therefore, it can match somebody with somebody
Default software in being preset in firmware therein or terminal device 1 is put/compiles to come to the saturating of each pixel on liquid crystal layer 121
Penetrate/non-transmissive state is controlled so that and within the predetermined cycle, the transmission of each pixel on liquid crystal layer 121/non-transmissive
State alternately causes infrared light（Pass through/shield）Comprising encoded signal be unique so that different encoded signal difference
Corresponding to pixel different on liquid crystal layer 121, and correspond respectively to the different directions of propagation of infrared light.That is, many
It is modulated on the individual default direction of propagation（Pass through/shield）Infrared light believe as unique mark comprising different coding informations
Breath.For example, it is assumed that there are 256 pixels on liquid crystal layer 121, then 256 different 8 activation bits can be set（Such as, 1 represent
Pixel transmission state, 0 represents pixel non-transmissive state）So that each pixel on liquid crystal layer 121 is in the predetermined cycle（Such as,
0.1 second）Interior transmission/non-transmissive state alternating rule is different, with the propagation of unique mark infrared light corresponding with the pixel
Direction（256 directions）.In addition, if there are 1024 pixels on liquid crystal layer 121, then 1024 different 10 can be set and driven
Dynamic information cause correspond to liquid crystal layer 121 on different pixels infrared light coding information it is different, with unique mark with should
The direction of propagation of the corresponding infrared light of pixel（256 directions）.Here it is possible to be needed to set liquid crystal layer according to specific precision
Pixel quantity on 121, and the activation bit of correspondence digit is provided based on the pixel quantity on liquid crystal layer 121 such that it is able to
Make the coding information of the infrared light for corresponding to the different pixels on liquid crystal layer 121 different.
According to the present embodiment, when modulated infrared light is received by another terminal device, another terminal device can be with
Side of another terminal device relative to terminal device 1 is determined based on unique identification information that modulated infrared light is included
To.Specifically, another terminal device can be included and may be provided on the arbitrary surfaces of another terminal device（Generally in front）
Infrared light receiving unit.In this case, another terminal device is received comprising unique mark by infrared light receiving unit
The infrared light of information.Here, as previously described, because the infrared light on the different directions of propagation is comprising unique（It is different）
Identification information, therefore another terminal device can by the unique identification information calculate infrared light source direction so that
Direction of another terminal device relative to terminal device 1 can be determined.Here, if terminal device 1（It can also include red
Outer light receiving unit）And another terminal device is same brand or supports uniform product, then can be when dispatching from the factory
The letter related to the direction of propagation of the infrared light representated by multiple unique marks is preset in terminal device 1 and another terminal device
Breath（Such as, the mapping table of mapping unique mark and the direction of propagation）, thus terminal device 1 and another terminal device can be according to default
Information come the direction of propagation of the infrared light received by determining.In addition, being matched in terminal device 1 and another terminal device（Such as,
By bluetooth or WIFI）Period, above- mentioned information can also be between shared, to cause that terminal device 1 and another terminal set
It is standby can be determined according to shared information received by infrared light the direction of propagation.
Additionally, in the infrared light receiving unit of another terminal device（Due to its receiving area）Receive in different propagation sides
In the case of upward infrared light, another terminal device can be based on the plurality of direction of propagation on infrared light unique mark come
Obtain multiple directions of propagation, and the direction based on multiple directions of propagation come computing terminal equipment 1 relative to another terminal device
（For example, taking the median of multiple directions or middle direction）.In addition, the infrared light receiving unit in another terminal device is received
It is unique in the infrared light that another terminal device will can be received earliest in the case of infrared light on the different directions of propagation
Identify to determine the direction of propagation of the infrared light, thereby determine that direction of another terminal device relative to terminal device 1.So
Doing to avoid in infrared light by multiple reflections（Such as, wall reflection）Reach caused false judgment during another terminal device
Occur.
Additionally, according to another embodiment of the invention, can also be prestored in another terminal device and be set with terminal
Standby 1 signal source 11（Infrared light supply）The related information of power.Here, due to the intensity and the power of signal source 11 of infrared light
And the length of the propagation path of infrared light is related.In this case, the infrared light propagated in particular directions is by another end
When the infrared light receiving unit of end equipment is received, the infrared light that another terminal device can be received according to infrared light receiving unit
Intensity and the power of signal source 11 calculate the distance between another terminal device and terminal device 1（Range finding）.Additionally,
Matched in terminal device 1 and another terminal device（Such as, by bluetooth or WIFI）Period, can also between share above-mentioned
Power information, terminal device 1 and another terminal device are determined to enable another terminal device according to the power information
The distance between.
It is unique by being provided on the different directions of propagation that above-mentioned configuration, terminal device 1 pass through the signal in signal source 11
Mark so that receive unique mark that other terminal devices of signal can be included based on signal and set with terminal determining it
Orientation between standby 1, and it is also based on signal intensity determination distance therebetween.Here, due to terminal device 1 and
Other terminal devices do not need multiple receiving units to determine orientation and distance therebetween, it is possible thereby to be applied to small-sized
On the terminal device of change.
Additionally, according to another embodiment of the invention, signal source can also be ultrasonic wave generator unit, and it can be produced
Ultrasonic wave.Here, signal modulation unit can include：Beam forming unit and control unit.With the description class for Fig. 1
Seemingly, beam forming unit around（Surround）Ultrasonic wave generator unit.Beam forming unit can be Multibeam synthesis unit, and it can
To modulate the coding of the ultrasonic wave on multiple default directions of propagation.Additionally, control unit can be by arbitrary processor or micro-
Reason device is realized, and can control the modulation of the beam forming unit.
Similar with the description for Fig. 1, the function of control unit can be by liquid crystal panel controller or terminal device 1
Reason device is based on being preset in default software in firmware therein or terminal device 1 and realizes, and can according to firmware therein or
Default software performs default function.In the case where terminal device 1 starts signal emission mode（By user input or spy
Fixed applications trigger, for equipment room positioning）, control unit can be for each the propagation side in multiple default directions of propagation
To with the coding of ultrasonic wave of the different type of drive control Wave beam forming cells modulates on each direction of propagation so that
In the default cycle（Such as, 0.1 second）On, the modulated ultrasound wave packages on the default direction of propagation of multiple are believed containing different codings
Breath is used as unique identification information.Here it is possible to by using multi-beam Formation Technologies, according to default for different propagation sides
To coding drive beam forming unit so that on the different direction of propagation of default multiple, the coding information of ultrasonic wave
Difference is with the unique mark direction of propagation.
Then, according to the present embodiment, when modulated ultrasonic wave is received by another terminal device, another terminal device
Side of another terminal device relative to terminal device 1 is determined based on unique identification information that modulated ultrasonic wave is included
To.Specifically, another terminal device can include the arbitrary surfaces that may be provided at another terminal device（Usually front）On
Ultrasonic wave receiving unit.In this case, another terminal device is received comprising unique mark by ultrasonic wave receiving unit
The ultrasonic wave of knowledge information.Here, as previously described, because the ultrasound wave packages on the different directions of propagation are containing unique（No
Together）Identification information, therefore another terminal device can by the unique identification information calculate ultrasonic wave source direction, from
And direction of another terminal device relative to terminal device 1 can be determined.Here it is possible to when dispatching from the factory in the He of terminal device 1
The information related to the direction of propagation of the ultrasonic wave representated by multiple unique marks is preset in another terminal device（Such as, map only
One mark and the mapping table of the direction of propagation）, thus terminal device 1 and another terminal device can determine according to default information
The direction of propagation of received ultrasonic wave.In addition, being matched in terminal device 1 and another terminal device（Such as, by bluetooth or
WIFI）Period, can also between share above- mentioned information, with enable terminal device 1 and another terminal device according to
Default information is come the direction of propagation of the ultrasonic wave received by determining.
Additionally, the ultrasonic wave receiving unit in another terminal device receives the feelings of the ultrasonic wave on the different directions of propagation
Under condition, unique mark in the ultrasonic wave that another terminal device will can be received earliest determines the propagation side of the ultrasonic wave
To thereby determining that direction of another terminal device relative to terminal device 1.Do so can be avoided in ultrasonic wave by multiple
Reflection（Such as, wall reflection）Reach the generation of caused false judgment during another terminal device.Additionally, similarly, can also be another
The signal source 11 with terminal device 1 is prestored in one terminal device（Ultrasonic wave generating unit）The related information of power.This
In, because the intensity of ultrasonic wave is related to the length of the propagation path of the power and ultrasonic wave of signal source 11.In such case
Under, when the ultrasonic wave propagated in particular directions is received by the ultrasonic wave receiving unit of another terminal device, another terminal sets
It is standby another terminal to be calculated according to the intensity of ultrasonic wave of ultrasonic wave receiving unit reception and the power of signal source 11
The distance between equipment and terminal device 1（Range finding）.Additionally, being matched in terminal device 1 and another terminal device（Such as, by indigo plant
Tooth or WIFI）Period, above-mentioned power information can also be between shared, to enable another terminal device according to the work(
Rate information determines the distance between terminal device 1 and another terminal device.
Signal modulating method according to embodiments of the present invention is described next, with reference to Fig. 2.Here, the signal modulation side of Fig. 2
Method can apply on terminal device as shown in Figure 1.The terminal device can include：Housing；It is arranged on the specific table of housing
At least one signal source on face；The signal modulation unit being correspondingly arranged with least one signal source.
As shown in Fig. 2 in step S201, judging the present mode of terminal device.
Specifically, control unit 122 can determine whether terminal device 1 starts signal emission mode.Here, the signal
Emission mode can be by user input（Such as, touch button）Or specific application（Positioning application）Triggering.Here, if control is single
Unit 122 detects above-mentioned triggering, then control unit 122 judges to need enabling signal emission mode.
Then, in step S202, if terminal device is in signal emission mode, the signal to signal source transmitting is carried out
Modulation so that it is with predetermined interval, relative at least one signal source multiple preset the direction of propagation on, modulated letter
Number include the unique identification information related to the corresponding direction of propagation.
Specifically, be in signal source 11 infrared light supply embodiment in, signal modulation unit 12 includes：Around infrared ray
Liquid crystal layer/panel 121 and control unit 122 that source is set.Liquid crystal layer/panel 121 wraps up the signal source 11.Here, liquid crystal
Layer 121 has multiple pixels, and each of which pixel can be corresponding respectively with the default direction of propagation of multiple respectively.For example, letter
Number source 11 can be arranged on the lower right side of terminal device 1（Such as, inside the bottom right frame of terminal device 1）, and liquid crystal layer 121 exists
Signal source 11 is surrounded on corresponding position.Additionally, liquid crystal layer 121 can also be realized by flexible screen technology（In spherical calotte
Or curved surface）, and surround signal source 11.Further, it is also possible to set other signal sources 11 and signal modulation in other positions
Unit 12.
Control unit 122 is connected with liquid crystal layer, and can control the transmission of each pixel cell on liquid crystal layer 121/
Non-transmissive state.In this case, step S302 may further include：Control unit is in multiple default directions of propagation
Each direction of propagation, pixel corresponding with each direction of propagation on liquid crystal layer is controlled with different type of drive respectively
Transmission/non-transmissive state so that the modulated infrared light on the default direction of propagation of multiple is made comprising different coding informations
It is unique identification information.
Specifically, because the transmission/non-transmissive state of each pixel on liquid crystal layer 121 can cause to be irradiated to the pixel
Infrared light pass through/shield, and infrared light pass through/shield the infrared light is included coding information（Using infrared light as
The coding of carrier）, therefore, it is under signal emission mode in terminal device, control unit 122 is to each on liquid crystal layer 121
Transmission/the non-transmissive state of individual pixel is controlled so that within the predetermined cycle, each pixel on liquid crystal layer 121
Transmission/non-transmissive state alternately causes infrared light（Pass through/shield）Comprising encoded signal be unique so that different volumes
Code signal corresponds respectively to pixels different on liquid crystal layer 121, and corresponds respectively to the different directions of propagation of infrared light.Also
It is to say, it is modulated on the default direction of propagation of multiple（Pass through/shield）Infrared light comprising different coding informations as only
One identification information, and the unique mark is for indicating modulated infrared light relative to the direction of terminal device 1.For example,
Assuming that there are 256 pixels on liquid crystal layer 121, then 256 different 8 activation bits can be set（Such as, 1 pixel transmission is represented
State, 0 represents pixel non-transmissive state）So that each pixel on liquid crystal layer 121 is in the predetermined cycle（Such as, 0.1 second）It is interior
Transmission/non-transmissive state to replace rule different, with the direction of propagation of unique mark infrared light corresponding with the pixel（256
Individual direction）.Here it is possible to needed to set the pixel quantity on liquid crystal layer 121 according to specific precision, and based on liquid crystal layer
Pixel quantity on 121 provides the activation bit of correspondence digit such that it is able to make corresponding to the different pixels on liquid crystal layer 121
The coding information of infrared light is different.
In this case, when modulated infrared light is received by another terminal device, another terminal device can be with
Side of another terminal device relative to terminal device 1 is determined based on unique identification information that modulated infrared light is included
To.Here it is possible to the direction of propagation phase with the infrared light representated by multiple unique marks is set in another terminal device in advance
The information of pass（Such as, the mapping table of mapping unique mark and the direction of propagation）, thus another terminal device can be according to default letter
Cease come the direction of propagation of the infrared light received by determining.In addition, being matched in terminal device 1 and another terminal device（Such as, pass through
Bluetooth or WIFI）Period, above- mentioned information can also be between shared, to enable terminal device 1 and another terminal device
The direction of propagation of the infrared light received by enough being determined according to shared information.Additionally, in the infrared light of another terminal device
Receiving unit（May be provided on the arbitrary surfaces of another terminal device, usually front）Receive on the different directions of propagation
In the case of infrared light, another terminal device can obtain many based on the unique mark of the infrared light on the plurality of direction of propagation
The individual direction of propagation, and the direction based on multiple directions of propagation come computing terminal equipment 1 relative to another terminal device（For example,
Take the median of multiple directions or middle direction）.In addition, the infrared light receiving unit in another terminal device is received in difference
In the case of infrared light on the direction of propagation, the unique mark in the infrared light that another terminal device will can be received earliest is come
Determine the direction of propagation of the infrared light, thereby determine that direction of another terminal device relative to terminal device 1.Do so can be with
Avoid in infrared light by multiple reflections（Such as, wall reflection）Reach the generation of caused false judgment during another terminal device.
In addition, according to another embodiment of the invention, the signal with terminal device 1 can also be prestored in another terminal device
Source 11（Infrared light supply）The related information of power.In this case, the infrared light propagated in particular directions is by another end
When the infrared light receiving unit of end equipment is received, the infrared light that another terminal device can be received according to infrared light receiving unit
Intensity and the power of signal source 11 calculate the distance between another terminal device and terminal device 1（Range finding）.Additionally,
Above-mentioned power information can be matched in terminal device 1 and another terminal device（Such as, by bluetooth or WIFI）Period shares.
Additionally, in signal source 11 is the embodiment of ultrasonic wave generator unit, signal modulation unit can include：Wave beam shape
Into unit and control unit.Here, beam forming unit around（Surround）Ultrasonic wave generator unit.Beam forming unit can be with
It is Multibeam synthesis unit, its coding that can modulate the ultrasonic wave on multiple default directions of propagation.Additionally, control unit can be with
Control the modulation of the beam forming unit.
In this case, step S202 may further include：Control unit is in multiple default directions of propagation
Each direction of propagation, with ultrasonic wave of the different type of drive control Wave beam forming cells modulates on each direction of propagation
Coding so that in the default cycle（Such as, 0.1 second）On, the modulated ultrasound wave packages on the default direction of propagation of multiple contain
Different coding informations is used as unique identification information.Here it is possible to by using multi-beam Formation Technologies, according to default pin
Beam forming unit is driven to the coding of the different directions of propagation so that on the different direction of propagation of default multiple, ultrasound
The coding information of ripple is different with the unique mark direction of propagation, it is, unique mark that modulated ultrasonic wave is included
Knowledge information can serve to indicate that direction of the modulated ultrasonic wave relative to terminal device 1.
In this case, when modulated ultrasonic wave is received by another terminal device, another terminal device can be with
Side of another terminal device relative to terminal device 1 is determined based on unique identification information that modulated ultrasonic wave is included
To.Here it is possible to be preset and the ultrasound representated by multiple unique marks in terminal device 1 and another terminal device when dispatching from the factory
The related information in the direction of propagation of ripple（Such as, the mapping table of mapping unique mark and the direction of propagation）, thus, another terminal device is equal
The direction of propagation of the ultrasonic wave received by being determined according to default information.In addition, being set in terminal device 1 and another terminal
Standby pairing（Such as, by bluetooth or WIFI）Period, above- mentioned information can also be between shared, to cause the He of terminal device 1
Another terminal device can be determined according to default information received by ultrasonic wave the direction of propagation.Additionally, at another end
In the case that the ultrasonic wave receiving unit of end equipment receives the ultrasonic wave on the different directions of propagation, another terminal device can be with
Unique mark in the ultrasonic wave that will be received earliest determines the direction of propagation of the ultrasonic wave, thereby determines that another terminal sets
The standby direction relative to terminal device 1.Do so can be avoided in ultrasonic wave by multiple reflections（Such as, wall reflection）Reach another
The generation of caused false judgment during one terminal device.Additionally, similarly, can be being prestored and end in another terminal device
The signal source 11 of end equipment 1（Ultrasonic wave generating unit）The related information of power.Here, due to the intensity and signal of ultrasonic wave
The length of the power in source 11 and the propagation path of ultrasonic wave is related.In this case, the ultrasound propagated in particular directions
When ripple is received by the ultrasonic wave receiving unit of another terminal device, another terminal device can connect according to ultrasonic wave receiving unit
The intensity of the ultrasonic wave of receipts and the power of signal source 11 calculate the distance between another terminal device and terminal device 1
（Range finding）.Additionally, being matched in terminal device 1 and another terminal device（Such as, by bluetooth or WIFI）Period, can also be at the two
Between share above-mentioned power information, terminal device 1 and this are determined to enable another terminal device according to the power information
The distance between another terminal device.
Each embodiment of the invention has been described in detail above.However, it should be appreciated by those skilled in the art that not taking off
In the case of principle of the invention and spirit, these embodiments can be carried out with various modifications, combination or sub-portfolio, and so
Modification should fall within the scope of the present invention.
Claims (16)
1. a kind of terminal device, including：
Housing；
At least one signal source, is arranged at least first surface of the housing, and configuration carrys out broadcast singal；
The signal modulation unit being correspondingly arranged with least one signal source, configuration comes under signal emission mode, to signal
The signal of source transmitting is modulated so that with predetermined interval, default relative to the multiple of at least one signal source
On the direction of propagation, modulated signal includes the unique identification information related to the corresponding direction of propagation.
2. terminal device as claimed in claim 1, wherein
At least one signal source is infrared light supply, configures to produce infrared light；And
The signal modulation unit, including：
Around the liquid crystal layer that the infrared light sources are set, the liquid crystal layer has multiple pixels, and the multiple default biography
Broadcast direction corresponding from different pixel cells respectively；And
Control unit, configures to control the transmission/non-transmissive state of each pixel cell on the liquid crystal layer.
3. terminal device as claimed in claim 2, wherein
Described control unit is divided for each direction of propagation in the multiple default direction of propagation with different coded systems
Transmission/the non-transmissive state of pixel corresponding with described each direction of propagation on the liquid crystal layer is not controlled so that in multiple
Modulated infrared light on the default direction of propagation is comprising different coding informations as unique identification information.
4. terminal device as claimed in claim 3, wherein
When the modulated infrared light is received by another terminal device, another terminal device is based on described modulated
Unique identification information that infrared light is included determines direction of another terminal device relative to the terminal device.
5. terminal device as claimed in claim 4, wherein
Another terminal device prestores the information related to the power of the infrared light supply；And
When being received by another terminal device, the intensity of the infrared light be used to judging another terminal device with it is described
The distance between terminal device.
6. terminal device as claimed in claim 1, wherein
At least one signal source is ultrasonic wave generator unit, configures to produce ultrasonic wave；And
The signal modulation unit, including：
Around the beam forming unit of the ultrasonic wave generator unit, configure to modulate the ultrasonic waves on multiple default directions of propagation
Coding；And
Control unit, configures to control the modulation of the beam forming unit.
7. terminal device as claimed in claim 6, wherein
Described control unit is directed to each direction of propagation in the multiple default direction of propagation, with different coded system controls
Make the coding of the ultrasonic wave that the beam forming unit is modulated on described each direction of propagation so that in the default propagation of multiple
Modulated ultrasound wave packages on direction are containing different coding informations as unique identification information.
8. terminal device as claimed in claim 7, wherein
When the modulated ultrasonic wave is received by another terminal device, another terminal device is based on described modulated
Unique identification information that ultrasonic wave is included determines direction of another terminal device relative to the terminal device.
9. terminal device as claimed in claim 8, wherein
Another terminal device prestores the information related to the power of ultrasonic wave generation；And
When being received by another terminal device, the intensity of the ultrasonic wave be used to judging another terminal device with it is described
The distance between terminal device.
10. a kind of signal modulating method, is applied to terminal device, and the terminal device includes：Housing；At least one signal source,
It is arranged at least first surface of the housing；The signal modulation unit being correspondingly arranged with least one signal source, institute
Stating signal modulating method includes：
Judge the present mode of the terminal device；
If the terminal device is in signal emission mode, the signal to signal source transmitting is modulated so that have
Predetermined interval, relative at least one signal source multiple preset the direction of propagation on, modulated signal include with it is right
The unique identification information of the direction of propagation correlation answered.
11. methods as claimed in claim 10, wherein
At least one signal source is infrared light supply, configures to produce infrared light；And
The signal modulation unit includes the liquid crystal layer set around the infrared light sources, and the liquid crystal layer has multiple pictures
Element, and the multiple default direction of propagation is corresponding from different pixel cells respectively；And control unit, configure to control
State the transmission/non-transmissive state of each pixel cell on liquid crystal layer.
12. signal modulating methods as claimed in claim 11, wherein the step of being modulated to the signal that signal source is launched is entered
One step includes：
Described control unit is divided for each direction of propagation in the multiple default direction of propagation with different coded systems
Transmission/the non-transmissive state of pixel corresponding with described each direction of propagation on the liquid crystal layer is not controlled so that in multiple
Modulated infrared light on the default direction of propagation is comprising different coding informations as unique identification information.
13. methods as claimed in claim 12, wherein
Unique identification information that the modulated infrared light is included be used for indicate the modulated infrared light relative to
The direction of the terminal device.
14. methods as claimed in claim 10, wherein
At least one signal source is ultrasonic wave generator unit, configures to produce ultrasonic wave；And
The signal modulation unit includes the beam forming unit around the ultrasonic wave generator unit, and configuration is multiple pre- to modulate
If the coding of the ultrasonic wave on the direction of propagation；And control unit, configure to control the modulation of the beam forming unit.
15. methods as claimed in claim 14, wherein the step of being modulated to the signal that signal source is launched further includes：
Described control unit is directed to each direction of propagation in the multiple default direction of propagation, with different coded system controls
Make the coding of the ultrasonic wave that the beam forming unit is modulated on described each direction of propagation so that in the default propagation of multiple
Modulated ultrasound wave packages on direction are containing different coding informations as unique identification information.
16. methods as claimed in claim 15, wherein
Unique identification information that the modulated ultrasonic wave is included be used for indicate the modulated ultrasonic wave relative to
The direction of the terminal device.
Priority Applications (2)
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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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| CN201310403596.5A CN104422920B (en) | 2013-09-06 | 2013-09-06 | Terminal equipment and signal modulating method thereof |
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| CN104422920B true CN104422920B (en) | 2017-05-24 |
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| 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 |
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| TWI431362B (en) * | 2009-05-29 | 2014-03-21 | Japan Display West Inc | Touch sensor, display and electronic device |
| US9810784B2 (en) * | 2010-11-16 | 2017-11-07 | Qualcomm Incorporated | System and method for object position estimation based on ultrasonic reflected signals |
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|---|---|---|---|---|
| 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 |
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