CN105704289B - Mobile terminal and working method thereof - Google Patents
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- CN105704289B CN105704289B CN201410681755.2A CN201410681755A CN105704289B CN 105704289 B CN105704289 B CN 105704289B CN 201410681755 A CN201410681755 A CN 201410681755A CN 105704289 B CN105704289 B CN 105704289B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
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Abstract
The invention provides a mobile terminal and a working method thereof, relates to the field of communication, and aims to solve the problem that people are inconvenient to utilize ultrasonic waves and infrasonic waves in the prior art. The mobile terminal includes: a transduction part, an acoustic wave encoding and decoding part and a central processing part; the energy conversion part is connected with the sound wave coding and decoding part and is used for converting sound wave signals into analog electric signals and transmitting the analog electric signals to the sound wave coding and decoding part; the sound wave signal comprises at least one of an infrasound wave signal, an audible wave signal and an ultrasonic wave signal; the sound wave coding and decoding part is respectively connected with the energy conversion part and the central processing part and is used for converting the analog electric signal from the energy conversion part into a digital electric signal and transmitting the digital electric signal to the central processing part; the central processing part is connected with the sound wave coding and decoding part and is used for processing the digital electric signals from the sound wave coding and decoding part.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a mobile terminal and a working method thereof.
Background
With the development of smart phone technology, various software applied to mobile phones is also in the coming. However, in various audio applications such as mobile phone communication and entertainment, the frequency of sound is generally limited to the range that human ears can receive (20 Hz-20000Hz), i.e. listening.
However, in reality, there are infrasonic waves (sound waves having a frequency of less than 20 Hz) and ultrasonic waves (sound waves having a frequency of more than 20000Hz) in addition to sounds (audible waves) audible to the human ear in the sound waves of nature. For example, offshore storms, volcanic eruptions, tsunamis, tornadoes, earthquakes, magnetic storms, etc. may be accompanied by infrasonic waves. The vibration of human organs, such as elephant, crocodile, tiger, etc., can also generate infrasonic waves. The presence and application of ultrasound is more well known. For example, a dolphin can perform "echo localization" using shouts of ultrasonic waves with frequencies above 200-350kHz, and a bat can perform echo localization using ultrasonic waves with frequencies between 27kHz and 54 kHz.
Ultrasonic waves and infrasonic waves have great value in the aspects of medical treatment, industry and scientific research, and the problem to be solved in the field is urgent how to enable people to more conveniently utilize the ultrasonic waves and the infrasonic waves.
Disclosure of Invention
The invention aims to provide a mobile terminal and a working method thereof, which are used for solving the problem that people are inconvenient to utilize ultrasonic waves and infrasonic waves in the prior art.
The present invention provides a mobile terminal, comprising: a transduction part, an acoustic wave encoding and decoding part and a central processing part; the energy conversion part is connected with the sound wave coding and decoding part and is used for converting sound signals into analog electric signals and transmitting the analog electric signals to the sound wave coding and decoding part; the acoustic signal comprises at least one of an ultrasonic signal, an infrasonic signal, and an audible acoustic signal; the sound wave coding and decoding part is respectively connected with the energy conversion part and the central processing part and is used for converting the analog electric signal from the energy conversion part into a digital electric signal and transmitting the digital electric signal to the central processing part; the central processing part is connected with the sound wave coding and decoding part and is used for processing the digital electric signals from the sound wave coding and decoding part.
Optionally, the transduction portion includes: ultrasonic transducers, secondary transducers, and audible transducers.
Optionally, the ultrasonic transducer, the secondary transducer and the audible transducer are connected to the sound wave encoding and decoding part through a multi-way switch.
Furthermore, the sound wave encoding and decoding part is also used for converting the digital electric signal of the central processing part into an analog electric signal and transmitting the analog electric signal to the audible wave transducer; the audible wave transducer is also used for converting the analog electric signals from the sound wave encoding and decoding part into audible sound and outputting the audible sound.
Optionally, the central processing unit is specifically configured to process the digital electrical signal from the acoustic wave encoding and decoding unit to obtain an amplitude-frequency characteristic and a phase-frequency characteristic of the digital electrical signal.
Further, the mobile terminal further comprises a display part, wherein the display part is connected with the central processing part and is used for displaying the data processed by the central processing part.
Optionally, the mobile terminal includes one of a mobile phone, a tablet computer, and a personal digital assistant.
On the other hand, the invention also provides a working method of the mobile terminal, which comprises the following steps: converting the acoustic signal into an analog electric signal through the energy conversion part of the mobile terminal and transmitting the analog electric signal to the sound wave encoding and decoding part; the acoustic signal comprises at least one of an ultrasonic signal, an infrasonic signal, and an audible acoustic signal; the sound wave coding and decoding part is used for converting the analog electric signal from the energy conversion part into a digital electric signal and then transmitting the digital electric signal to the central processing part; the digital electric signals from the acoustic wave codec unit are processed by the central processing unit.
Optionally, the transduction portion includes: ultrasonic transducers, secondary transducers, and audible transducers.
Further, after the digital electric signals from the acoustic wave codec unit are processed by the central processing unit, the method further includes: the sound wave coding and decoding part is used for converting the digital electric signal of the central processing part into an analog electric signal and then transmitting the analog electric signal to the audible wave transducer; and converting the analog electric signal from the sound wave encoding and decoding part into audible sound through the audible wave transducer and outputting the audible sound.
According to the mobile terminal and the working method thereof provided by the embodiment of the invention, the transduction part can convert any one of the ultrasonic signal, the infrasonic signal and the audible sound signal into the analog electric signal, and the analog electric signal can be coded and subjected to analog-to-digital conversion by the sound wave coding and decoding part and then processed by the central processing part to form a series of digital electric signals, so that the conversion between the three types of sound signals and the electric signals is realized on the mobile terminal such as a common mobile phone, a tablet computer or a personal digital assistant, and convenience is provided for the application of ultrasonic waves and infrasonic waves by people.
Drawings
Fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a mobile phone according to an embodiment of the present invention;
FIG. 3 is a flow chart for controlling a handset by operating an input device;
FIG. 4 is another flow chart for controlling a handset by operating an input device;
fig. 5 is a flowchart of a working method of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1, an embodiment of the present invention provides a mobile terminal, including: a transducer unit 1, an acoustic wave encoding/decoding unit 2, and a central processing unit 3;
the energy conversion part 1 is connected with the sound wave coding and decoding part 2 and is used for converting sound signals into analog electric signals and transmitting the analog electric signals to the sound wave coding and decoding part 2; the acoustic signal comprises at least one of an ultrasonic signal, an infrasonic signal, and an audible acoustic signal;
the sound wave coding and decoding part 2 is respectively connected with the energy conversion part 1 and the central processing part 3 and is used for converting the analog electric signal from the energy conversion part 1 into a digital electric signal and transmitting the digital electric signal to the central processing part 3;
the central processing unit 3 is connected to the acoustic codec unit 2, and processes the digital electrical signal from the acoustic codec unit 2.
In the mobile terminal provided by the embodiment of the invention, the transduction part 1 can convert any one of the ultrasonic signal, the infrasonic signal and the audible sound signal into the analog electric signal, and the analog electric signal can be coded and subjected to analog-to-digital conversion by the sound wave coding and decoding part 2 and then processed by the central processing part 3 to form a series of digital electric signals, so that the conversion between the three types of sound signals and the electric signals is realized on the mobile terminal such as a common mobile phone, a tablet computer or a personal digital assistant, and convenience is provided for the application of ultrasonic waves and infrasonic waves by people.
Since the transducer part 1 is responsible for the conversion between three acoustic signals and electrical signals, in order to successfully complete the acoustic conversion in each frequency band, the transducer part 1 may optionally include three types of transducers, i.e., an ultrasonic transducer, a secondary transducer and an audible transducer, and preferably, each type of transducer may further include a different frequency response portion. For example, the ultrasonic transducer may be a piezoelectric ceramic with various frequency response characteristics, the audible transducer may be a microphone, the secondary transducer may be a capacitive infrasonic sensor, and the like. The ultrasonic transducer, the secondary transducer and the audible transducer can be connected with the sound wave encoding and decoding part 2 through a multi-way switch, so that the sound signals of different frequency bands can be converted through controlling the multi-way switch.
The acoustic wave codec unit 2 can convert an analog electrical signal into a digital electrical signal, and the digital electrical signal is supplied to the central processing unit 3 for digital signal processing.
Specifically, the central processing unit 3 can perform various processes on the digital electric signal transmitted from the acoustic wave decoding unit 2 so as to obtain various characteristics of the acoustic signal corresponding to the digital electric signal. For example, in one embodiment of the present invention, the central processing portion 3 may be configured to process the digital electrical signal from the acoustic wave codec portion 2 so as to obtain the amplitude-frequency characteristic and the phase-frequency characteristic of the digital electrical signal.
Further, the mobile terminal provided in the embodiment of the present invention may further include a display unit, where the display unit may be connected to the central processing unit 3 and configured to display the data processed by the central processing unit 3. For example, the display unit may be configured to display a characteristic curve of the amplitude-frequency characteristic and the phase-frequency characteristic of the digital electric signal.
Therefore, although people cannot hear the ultrasonic sound and the infrasound, the mobile terminal provided by the invention can detect the external ultrasonic signal and the infrasound signal and display the amplitude-frequency characteristic and the phase-frequency characteristic of the detected ultrasonic signal and the infrasound signal, so that a user can more deeply research the characteristic and the law of an object which emits the ultrasonic sound or the infrasound. For example, the law of aurora activity can be studied by using infrasonic waves generated by aurora; the position, size, etc. of the sound source can be detected using the received infrasonic waves generated by the sound source to be detected. In addition, many disastrous natural phenomena, such as volcanic eruptions, tornadoes, typhoons, etc., may radiate infrasound waves before occurrence, and these infrasound precursors may be used to predict and forecast the occurrence of these disastrous natural events. Some organs of human body and other living things can also emit weak infrasonic waves, and the activity of the human body or other biological corresponding organs can also be known by measuring the infrasonic waves emitted by the organs.
Furthermore, the sound wave encoding and decoding part 2 can convert the analog electric signal into the digital electric signal for the central processing part 3, and can also be used for converting the digital electric signal of the central processing part 3 into the analog electric signal and transmitting the analog electric signal to the audible wave transducer; the acoustic transducer is also used to convert the analog electrical signal from the acoustic codec unit 2 into an acoustic sound and output the acoustic sound, that is, the electrical signal can be converted into an acoustic sound signal, and has an electro-acoustic conversion function.
The technical solutions of the embodiments of the present invention are described in detail by specific embodiments below. As shown in fig. 2, an embodiment of the present invention provides a mobile phone 4, including: an acoustic-electric conversion device 11, an acoustic wave codec device 12, a central processing unit 13, an image display device 14, an electro-acoustic transducer device 15, and an input device 16.
The sound-electricity conversion device 11 can receive a wide-frequency sound signal (including an infrasonic frequency sound signal, an audible frequency sound signal, and an ultrasonic frequency sound signal), convert the wide-frequency sound signal into an analog electric signal, and transmit the analog electric signal to the sound wave encoding and decoding device 12. The sound wave encoding and decoding device 12 can amplify, convert and encode the analog electric signal to form a digital signal for the central processing unit 13. The central processor 13 is able to analyze the digital signal and extract therefrom a frequency and amplitude signal. The digital signal processed by the central processing unit 13 can be transmitted to the image display device 14 for feature display, or transmitted to the sound wave encoding and decoding device 12 for sound wave output through the electroacoustic transducer device 15, or both. Specifically, the method may be implemented by a user by operating an input device. Wherein the sound wave output can be realized in the form of audio playing for sound signals of audible frequency.
Fig. 3 and 4 are flowcharts of the user controlling the mobile phone 4 by operating the input device, respectively. Fig. 3 is a flow of switching control of the acoustic frequency switch, and fig. 4 is a flow of data output control of the cpu.
As can be seen from fig. 2 and 3, when the sound wave frequency switch switching program is started, the information acquired by the input device 16 is first determined, and the switching control of the electroacoustic transducer device 11 is performed based on the information acquired by the input device 16. For example, if the information acquired by the input device 16 is switched to the ultrasonic wave frequency, the passage of the acoustic-electric conversion device 11 is switched to the ultrasonic acoustic-electric conversion device, and if the information acquired by the input device 16 is switched to the audible acoustic signal frequency or the infrasonic signal frequency, similar processing is performed, and the corresponding transducer device is turned on. And if the information acquired by the input device is exit, ending the sound wave frequency switch switching program.
As can be seen from fig. 2 and 4, after the data output control program is started, the information of the input device 16 is first determined, if the information acquired by the input device 16 is that the audio data information is only displayed by an image, the data from the central processing unit 13 to the image display device is turned on, and the digital audio data displays the frequency and amplitude of the signal through the image display device 14; if the information obtained by the input device 16 is that the audio data information is only output through audio, the data from the central processing unit 13 to the sound wave coding and decoding device 12 is opened, the data is sent to the sound wave coding and decoding device 12, the sound wave coding and decoding device 12 decodes the digital voice signal, and the digital voice signal is output to the electroacoustic transducer 15 after digital-to-analog conversion; if the image display and the sound wave output are selected to be simultaneously opened, the data of the image display and the sound wave output are both opened; if the selection is quit, ending the CPU data output control program.
It should be noted that, in the embodiment, a mobile phone is taken as an example to describe the mobile terminal provided by the present invention, but the mobile terminal provided by the present invention is not limited thereto, and may also be other mobile devices such as a tablet computer, a personal digital assistant, and the like, and the embodiment of the present invention is not limited thereto.
Correspondingly, an embodiment of the present invention further provides an operating method of a mobile terminal, as shown in fig. 5, the method includes:
s11, converting the acoustic signal into analog electric signal by the transduction part of the mobile terminal and transmitting the analog electric signal to the sound wave coding and decoding part; the acoustic signal comprises at least one of an ultrasonic signal, an infrasonic signal, and an audible acoustic signal;
s12, converting the analog electrical signal from the transducer into a digital electrical signal by the sound wave codec, and transmitting the digital electrical signal to a central processing unit;
s13, the central processing unit processes the digital electric signal from the sound wave codec unit.
According to the working method of the mobile terminal provided by the embodiment of the invention, any one of the ultrasonic signal, the infrasonic signal and the audible sound signal can be converted into the analog electric signal through the energy conversion part, and the analog electric signal can be coded and subjected to analog-to-digital conversion through the sound wave coding and decoding part and then processed by the central processing part to form a series of digital electric signals, so that the conversion between the three types of sound signals and the electric signals is realized on the mobile terminals such as common mobile phones, tablet computers and personal digital assistants, and convenience is provided for people to apply ultrasonic waves and infrasonic waves.
Optionally, the transduction portion includes: ultrasonic transducers, secondary transducers, and audible transducers.
Further, in step S13, after the central processing unit processes the digital electrical signal from the sound wave encoding and decoding unit, the method for operating a mobile terminal according to the embodiment of the present invention may further include:
the digital electric signal of the central processing part is converted into an analog electric signal by the sound wave coding and decoding part and then transmitted to the audible wave transducer;
the analog electric signal from the sound wave codec unit is converted into audible sound by an audible sound transducer and output.
Furthermore, as for the data processed by the central processing unit, the data may be output not only by an audio output device, but also by a display unit connected to the central processing unit, some acoustic frequency characteristics embodied by the data may be displayed in the form of an image, which is not limited in the embodiment of the present invention.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.
Claims (6)
1. A mobile terminal, comprising: a transduction part, an acoustic wave encoding and decoding part and a central processing part;
the energy conversion part is connected with the sound wave coding and decoding part and is used for converting sound signals into analog electric signals and transmitting the analog electric signals to the sound wave coding and decoding part; the acoustic signal comprises at least one of an ultrasonic signal, an infrasonic signal, and an audible acoustic signal;
the sound wave coding and decoding part is respectively connected with the energy conversion part and the central processing part and is used for converting the analog electric signal from the energy conversion part into a digital electric signal and transmitting the digital electric signal to the central processing part;
the central processing part is connected with the sound wave coding and decoding part and is used for processing the digital electric signals from the sound wave coding and decoding part to obtain the amplitude-frequency characteristic and the phase-frequency characteristic of the digital electric signals;
wherein the transduction portion includes: ultrasonic transducers, secondary transducers and audible wave transducers; the ultrasonic transducer, the secondary transducer and the audible transducer are connected with the sound wave encoding and decoding part through a multi-way switch.
2. The terminal according to claim 1, wherein the sound wave encoding and decoding part is further configured to convert the digital electrical signal of the central processing part into an analog electrical signal and transmit the analog electrical signal to the audible wave transducer;
the audible wave transducer is also used for converting the analog electric signals from the sound wave encoding and decoding part into audible sound and outputting the audible sound.
3. The terminal according to any one of claims 1 to 2, further comprising a display part connected to the central processing part for displaying the data processed by the central processing part.
4. The terminal according to any of claims 1 to 2, wherein the mobile terminal comprises one of a cell phone, a tablet, a personal digital assistant.
5. An operating method of a mobile terminal, comprising:
converting the acoustic signal into an analog electric signal through the energy conversion part of the mobile terminal and transmitting the analog electric signal to the sound wave coding and decoding part; the acoustic signal comprises at least one of an ultrasonic signal, an infrasonic signal, and an audible acoustic signal;
the sound wave coding and decoding part is used for converting the analog electric signal from the energy conversion part into a digital electric signal and then transmitting the digital electric signal to the central processing part;
processing, by the central processing unit, the digital electrical signal from the acoustic wave codec unit to obtain an amplitude-frequency characteristic and a phase-frequency characteristic of the digital electrical signal;
wherein the transduction portion includes: ultrasonic transducers, secondary transducers and audible wave transducers; the ultrasonic transducer, the secondary transducer and the audible transducer are connected with the sound wave encoding and decoding part through a multi-way switch.
6. The method according to claim 5, wherein after the digital electric signals from the acoustic wave codec section are processed by the central processing section, the method further comprises:
the sound wave coding and decoding part is used for converting the digital electric signal of the central processing part into an analog electric signal and then transmitting the analog electric signal to the audible wave transducer;
and converting the analog electric signal from the sound wave encoding and decoding part into audible sound through the audible wave transducer and outputting the audible sound.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410681755.2A CN105704289B (en) | 2014-11-24 | 2014-11-24 | Mobile terminal and working method thereof |
| PCT/CN2015/072312 WO2016082333A1 (en) | 2014-11-24 | 2015-02-05 | Mobile terminal and working method therefor, and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410681755.2A CN105704289B (en) | 2014-11-24 | 2014-11-24 | Mobile terminal and working method thereof |
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| CN105704289A CN105704289A (en) | 2016-06-22 |
| CN105704289B true CN105704289B (en) | 2020-11-27 |
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| CN201410681755.2A Active CN105704289B (en) | 2014-11-24 | 2014-11-24 | Mobile terminal and working method thereof |
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| WO (1) | WO2016082333A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012005624A (en) * | 2010-06-24 | 2012-01-12 | Fujifilm Corp | Ultrasonic photoacoustic imaging apparatus and operation method of the same |
| JP5250064B2 (en) * | 2011-03-03 | 2013-07-31 | 富士フイルム株式会社 | Ultrasonic diagnostic apparatus and ultrasonic image generation method |
| CN202043190U (en) * | 2011-03-23 | 2011-11-16 | 上海优熠电子科技有限公司 | Cellphone with ultrasonic hand input function |
| EP2557763A1 (en) * | 2011-08-10 | 2013-02-13 | Research In Motion Limited | Remote control of a portable electronic device and method therefor |
| US20140200054A1 (en) * | 2013-01-14 | 2014-07-17 | Fraden Corp. | Sensing case for a mobile communication device |
| CN103278842B (en) * | 2013-05-23 | 2015-04-08 | 朱江 | Earthquake predicting and pre-warning system based on ground source ultrasonic wave monitoring and analysis |
| CN103888566A (en) * | 2014-04-03 | 2014-06-25 | 杜晨林 | Mobile terminal |
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- 2014-11-24 CN CN201410681755.2A patent/CN105704289B/en active Active
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| Publication number | Publication date |
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| WO2016082333A1 (en) | 2016-06-02 |
| CN105704289A (en) | 2016-06-22 |
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