WO2016026134A1

WO2016026134A1 - Sound or vibration-producing device and method of handheld electronic device

Info

Publication number: WO2016026134A1
Application number: PCT/CN2014/085005
Authority: WO
Inventors: 李定为; 王家章; 谢金孟
Original assignee: 志丰电子股份有限公司
Priority date: 2014-08-22
Filing date: 2014-08-22
Publication date: 2016-02-25

Abstract

Disclosed are a sound or vibration-producing device and method of a handheld electronic device, comprising a handheld electronic device; the handheld electronic device is provided with a piezoelectric vibration unit, a drive chip, a microprocessor, an operation interface and a memory; the operation interface displays three function modes to a user for selection, such as a music/ringtone playing mode, a talk mode and a touch feedback mode; according to the selected function mode, the microprocessor directly outputs vibration waveform information to the drive chip so as to drive the piezoelectric vibration unit, or transmits a music/ringtone file or a vibration waveform file via the memory to enable the drive chip to drive the piezoelectric vibration unit to generate a required sound or vibration.

Description

Pronunciation or vibration device and method for handheld electronic device

Technical field

The present invention relates to the field of handheld electronic devices, and more particularly to a sounding or vibration device disposed in a handheld electronic device. The device has multiple functional modes, and can select a sounding or vibration function, and the sounding or vibration device and method provided by the present invention. The handheld electronic device has an optimal operating experience.

Background technique

Handheld electronic devices are one of the most popular products at present. With the help of network connection, communication between people can be communicated not only to face-to-face communication, but also to thousands of miles. And with the popularization of technology, the threshold for people to obtain handheld electronic devices has also fallen sharply. It has almost reached the situation of one-handed machine, and the market has huge business opportunities, which has also driven the vigorous development of related industries.

Since the handheld electronic device is a portable product, most of the time, except for use, it is placed inside an individual's body such as a backpack, a pocket, etc., and then taken out when needed. Therefore, when there is an incoming call, the handheld electronic device must actively inform the user. The existing handheld electronic device notifies the user with a simple sound, but because the user may interfere with other events, the incoming call is often missed. Therefore, most handheld electronic devices have a vibration function, and various reminders are used to remind the user. To reduce the occurrence of missed calls.

In order to achieve the above notification function, sound related parts must be placed in the existing handheld electronic device to emit sound, and a vibration motor must be placed to generate vibration. However, the existing handheld electronic devices were originally designed for portable, so the volume and weight are the design priorities, and adding too many parts will reduce the portableness of the products. And the increase of parts will increase the difficulty of design and increase the probability of non-performing rate. Moreover, all parts will lose energy. For existing handheld electronic devices, the battery life is also an important aspect of the product's advantages and disadvantages. Excessive parts will definitely reduce the time of continuous use. In addition, the traditional vibration is generated by the vibration motor, and the vibration motor has more space and power requirements than the general electronic components, which is definitely not conducive to the portability of the existing handheld electronic devices.

The inventors of the present application have considered the above disadvantages, and then conducted research and improved and innovated, and considered using other methods to realize the pronunciation or vibration of the handheld electronic device.

After the inventors studied, a piezoelectric (Piezo) vibrator was used as a function source of pronunciation or vibration. The piezoelectric vibrator is a miniature electronic component that generates mechanical vibration by energization. It has the advantages of small size, power saving, and low price. It is especially suitable as a sounding or vibration device for portable small electronic products. However, piezoelectric vibrators can only control the vibration frequency in a very narrow range. For example, as a buzzer, the application range is narrow and can only be applied in a few fields.

technical problem

The main object of the present invention is to provide a sounding or vibration device and method for a handheld electronic device. The vibration device has multiple functional modes, and the user can switch vibration, sound, and even music playing functions at any time.

Technical solution

Another object of the present invention is to provide a sounding or vibration device and method for a handheld electronic device, which is small in size and light in weight, and contributes to miniaturization of the handheld electronic device, thereby being within a limited space of the handheld electronic device. Set up more extra features.

It is still another object of the present invention to provide a sounding or vibrating apparatus and method for a handheld electronic device that saves power requirements and is particularly suitable for long-term use of handheld electronic devices.

Another object of the present invention is to provide a sounding or vibrating device for a handheld electronic device, which can replace the sound and vibration device of the handheld electronic device, replacing the two devices with a single component, in addition to simplifying the design and saving cost.

A sounding or vibration device for a handheld electronic device, which comprises the above-mentioned object, comprising a handheld electronic device provided with a piezoelectric vibration unit, a driving chip, a microprocessor, an operation interface and a memory, to which the driving chip is connected a piezoelectric vibration unit, the microprocessor is connected to the driving chip, the operation interface is connected to the microprocessor, and the operation interface is displayed outside the handheld electronic device, the memory is connected to the microprocessor, the music/ringtone file or the vibration waveform file Stored in memory.

The pronunciation or vibration device of the handheld electronic device provides three functional modes, namely, a music playing/calling ringing mode, a call mode, a touch feedback mode, and three kinds of the function modes are displayed on the operation interface on the operation interface to provide select.

After the function mode is selected through the operation interface, the microprocessor directly outputs vibration waveform information to the driving chip to drive the piezoelectric vibration unit according to the selected function mode; or the microprocessor is configured according to the selected functional mode. The memory transmits the music/ringtone file or the vibration waveform file to cause the driver chip to drive the piezoelectric vibration unit.

DRAWINGS

1 is a schematic structural view of a sounding or vibration device of a handheld electronic device according to the present invention;

2 is a schematic diagram showing the structure of a first functional mode of the pronunciation or vibration device of the handheld electronic device;

Figure 3 is a schematic diagram showing the structure of a second functional mode of the sounding or vibration device of the handheld electronic device;

Figure 4 is a schematic diagram showing the structure of a third functional mode of the sounding or vibration device of the handheld electronic device.

Embodiments of the invention

In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the present invention will be further described in detail with reference to the accompanying drawings.

Please refer to FIG. 1 to FIG. 4 , which illustrate a sounding or vibration device of a handheld electronic device 1 according to the present invention, including a handheld electronic device 1 , such as a mobile phone, a tablet, etc.; the handheld electronic device 1 is provided with Piezoelectric vibration unit 11, drive chip 12, microprocessor 13, operation interface 14 and memory 15, the drive chip 12 is connected to the piezoelectric vibration unit 11, the microprocessor 13 is connected to the driving chip 12, the operation interface 14 is connected to the microprocessor 13, and the operation interface 14 is displayed outside the handheld electronic device 1, and the memory 15 is connected to the microprocessor 13, and the memory 15 stores a music/ringtone file 151 or a vibration waveform file. 152.

The piezoelectric vibration unit 11 generates mechanical vibration by energization, the driving chip 12 is used to drive the piezoelectric vibration unit 11 to generate vibration, and the operation interface 14 displays a plurality of functional modes 2 for the user to select, and the microprocessor 13 is based on the user. The selected function mode 2 directly outputs vibration waveform information to the driving chip 12 to drive the piezoelectric vibration unit 11; or the microprocessor 13 transmits the music/ring pattern file 151 via the memory 15 according to the selected functional mode 2 or The vibration waveform file 152 causes the driving chip 12 to drive the piezoelectric vibration unit 11.

The present invention mainly provides three functional modes 2, namely, a music playing/calling ringing mode 21, a call mode 22, and a touch feedback mode 23, and the three functional modes 2 are built in the microprocessor 13 through a circuit or a software program. The menu screen 141 is displayed on the operation interface 14 to provide the user with three selections of the function mode 2.

Please refer to FIG. 2. As shown in the figure, when the user selects the function mode 2 to play the music/calling ring pattern 21, the microprocessor 13 drives the piezoelectric vibration unit 11 through the driving chip 12, the piezoelectric The vibration frequency of the vibration unit 11 ranges from 20 Hz to 20 kHz, so that an audio signal conforming to the human ear can be generated; and the content to be played can be generated by the microprocessor 13, or the music/caller stored in the memory 15 Ringtone file.

Referring to FIG. 3, as shown in the figure, when the function mode 2 selected by the user is the call mode 22, the vibration frequency range of the piezoelectric vibration unit 11 is controlled in a voice frequency band of 300 Hz to 7.4 kHz, and a receiver or a bone conduction receiver is generated. The feature allows the user to make a general voice call.

Please refer to FIG. 4. As shown in the figure, when the function mode 2 selected by the user is the touch feedback mode 23, the vibration frequency of the piezoelectric vibration unit 11 ranges from 100 Hz to 300 Hz, and the frequency range is a fixed frequency or a frequency sweep. The frequency range of the signal waveform of the internal load modulation signal, the required vibration waveform can be generated by the microprocessor 13, or the vibration waveform file 152 stored in the memory 15, and the vibration of the motor is adjusted by the vibration waveform adjustment. Features.

The sounding or vibration device and method of the handheld electronic device provided by the present invention have the following advantages when compared with the prior art:

1. The invention adopts a piezoelectric vibration unit, which has the advantages of small volume and light weight, can greatly reduce the volume of the handheld electronic device without special design, and can reduce the manufacturing cost of the handheld electronic device.

2. The invention has simple design and can replace the sound and vibration structure of the handheld electronic product at the same time, which not only simplifies the design but is more durable.

3. The present invention can further reduce power demand and greatly extend the charging use time of the handheld electronic device.

4. The present invention provides various functional modes, and the user can switch vibration, sound, and even music playing functions at any time, and has powerful functions.

The detailed description of the present invention is intended to be illustrative of a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. The scope of protection of this case.

Claims

A method for sounding or vibrating a handheld electronic device, characterized in that:

The handheld electronic device displays an operation interface, and the operation interface is provided with a function mode. After selecting a specific function mode, the microprocessor directly outputs vibration waveform information to the driving chip to drive the piezoelectric vibration unit according to the selected function mode; or The microprocessor causes the driving chip to drive the piezoelectric vibration unit via a memory to transmit a music/ringtone file or a vibration waveform file according to the selected function mode; generating the pronunciation of the handheld electronic device by using the piezoelectric vibration unit Or vibration function.
The method for sounding or vibrating a handheld electronic device according to claim 1, wherein the operation interface displays a menu screen of three function modes of playing a music/calling ring pattern, a call mode, and a touch feedback mode to provide a selection. Controlling, by the microprocessor, the driving chip to drive the piezoelectric vibration unit according to the selected functional mode.
The method for sounding or vibrating a handheld electronic device according to claim 2, wherein when the selected function mode is a music playing/calling ringing mode, the vibration frequency of the piezoelectric vibration unit ranges from 20 Hz to 20 kHz.
The method for sounding or vibrating a handheld electronic device according to claim 1, wherein when the selected functional mode is the call mode, the vibration frequency of the piezoelectric vibration unit ranges from 300 Hz to 7.4 kHz.
The method for sounding or vibrating the handheld electronic device according to claim 1, wherein when the selected functional mode is the touch feedback mode, the vibration frequency of the piezoelectric vibration unit ranges from 100 Hz to 300 Hz, and the vibration waveform is passed. The adjustment achieves the same vibration function as the motor.
A sounding or vibration device for a handheld electronic device, characterized in that:

a piezoelectric vibration unit disposed on the handheld electronic device;

Driving a chip connected to the piezoelectric vibration unit;

a microprocessor connected to the driver chip;

An operation interface connected to the microprocessor, the operation interface being displayed outside the handheld electronic device;

a memory connected to the microprocessor, the memory storing a music/ringtone file or a vibration waveform file;

The operation interface display function mode allows the user to select, the microprocessor directly outputs vibration waveform information to the driving chip to drive the piezoelectric vibration unit according to the selected function mode; or the microprocessor according to the selected function The mode transmits the music/ringtone file or the vibration waveform file via the memory to cause the driving chip to drive the piezoelectric vibration unit.
The sounding or vibration device of the handheld electronic device according to claim 6, wherein the operation interface displays a menu screen of three of the function modes of playing a music/calling ringing mode, a call mode, and a touch feedback mode. Provide a choice.
The sounding or vibration device of the handheld electronic device according to claim 6, wherein the piezoelectric vibration unit has a vibration frequency ranging from 20 Hz to 20 kHz.
The sounding or vibration device of the handheld electronic device according to claim 6, wherein the piezoelectric vibration unit has a vibration frequency ranging from 300 Hz to 7.4 kHz.
The sounding or vibration device of the handheld electronic device according to claim 6, wherein the piezoelectric vibration unit has a vibration frequency ranging from 100 Hz to 300 Hz.