CN203522988U

CN203522988U - Microphone apparatus and terminal

Info

Publication number: CN203522988U
Application number: CN201320596297.3U
Authority: CN
Inventors: 邱辉
Original assignee: Shenzhen Jinli Communication Equipment Co Ltd
Current assignee: Sun Qingfeng
Priority date: 2013-09-26
Filing date: 2013-09-26
Publication date: 2014-04-02
Anticipated expiration: 2023-09-26

Abstract

The embodiment of the utility model discloses a microphone apparatus including a microphone circuit, a housing and an acoustic panel. The microphone circuit includes a first voice to electricity converter, a second voice to electricity converter, and a signal processor. The acoustic panel separates the housing to a first cavity and a second cavity, the first voice to electricity converter is disposed in the first cavity, and the second voice to electricity converter is disposed in the second cavity. The embodiment of the utility model further discloses a terminal. By adopting the microphone apparatus and the terminal, stack design space of a structure and a panel arranging space are saved.

Description

A kind of microphone apparatus and terminal

Technical field

The utility model relates to electronic technology field, relates in particular to a kind of microphone apparatus and terminal.

Background technology

Raising along with people's life requirement, people are also more and more higher to the requirement of the speech processes aspect of terminal equipment, therefore, some terminal hardware equipment as the design process of microphone in, tend to increase the demand that a plurality of microphones reach various types of voice processing aspect, for example, by the combination of four microphones, realize the functions such as diamylose de-noising, directed recording, stereophonic recording and gesture induction.

In the prior art, the combination of a plurality of microphones is mainly by connecting to realize specific function with connecting line between a plurality of single microphones, be not an integral body truly, and the line between each microphone is complicated, volume whole after combination is larger, take more space, be unfavorable for the miniaturization of equipment, the development trend of ultrathin.

Utility model content

The utility model embodiment provides a kind of microphone apparatus and terminal, can realize the integrated of microphone combination, and saving takes up room.

The utility model embodiment provides a kind of microphone apparatus, comprises microphone circuit, housing and sound panel;

Described microphone circuit comprises first sound electric transducer, rising tone electric transducer and signal processor;

Described sound panel is divided into the first cavity and the second cavity by described housing, and described first sound electric transducer is arranged in described the first cavity, and described rising tone electric transducer is arranged in described the second cavity;

On the chamber wall of described the first cavity and described the second cavity, be respectively arranged with the first through hole and the second through hole, described first sound electric transducer receives voice signal by described the first through hole, and described rising tone electric transducer receives voice signal by described the second through hole;

Described first sound electric transducer is connected with described signal processor respectively with described rising tone electric transducer, and described signal processor exports central processing unit to for after the signal of described first sound electric transducer and described rising tone electric transducer is processed.

The utility model embodiment also provides a kind of terminal, comprises microphone apparatus as above and motherboard circuit, and described microphone apparatus is connected with described motherboard circuit.

Implement the utility model embodiment, at least two acoustical-electrical transducers and signal processor are integrated to as a whole microphone combination, compare with traditional microphone apparatus being formed by a plurality of single microphone combination, saved structure stack design space and cloth board space.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the electrical block diagram of a kind of embodiment of the utility model microphone apparatus;

Fig. 2 is the structural representation of the signal processor of the utility model embodiment;

Fig. 3 is the structural representation of a kind of embodiment of the utility model microphone apparatus.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.

Please also refer to Fig. 1, Fig. 2 and Fig. 3, be circuit diagram and the structural representation of a kind of embodiment of the utility model microphone apparatus, comprise microphone circuit 1, housing 2, at least two sound panels and central processing units 3.

Microphone circuit 1 comprises first sound electric transducer 111, rising tone electric transducer 112, signal processor 12 and Voltagre regulator module 13, sound panel comprises the first sound panel 31, the first sound panel 31 is divided into the first cavity 21 and the second cavity 22 by housing 2, first sound electric transducer 111 is arranged in the first cavity 21, the second acoustic-electric is changed 112 modules and is arranged in the second cavity 22, on the chamber wall of the first cavity 21 and the second cavity 22, be respectively arranged with the first through hole 210 and the second through hole 220, first sound electric transducer receives voice signal by the first through hole 210, rising tone electric transducer 112 receives voice signal by the second through hole 220, first sound electric transducer 111 is connected with signal processor 12 respectively with rising tone electric transducer 112, signal processor 12 exports central processing unit 3 to after the signal of first sound electric transducer 111 and rising tone electric transducer 112 is processed.

It should be noted that, according to actual functional requirement, also can increase the quantity of acoustical-electrical transducer, to realize, abate the noise, the function such as directed recording or stereophonic recording.In the utility model embodiment, microphone circuit also comprises the 3rd acoustical-electrical transducer 113, sound panel also comprises the second sound panel 32, the first sound panel 31, the second sound panel 32 are divided into the first cavity 21, the second cavity 22 and the 3rd cavity 23 by housing 2, on the chamber wall of the 3rd cavity, be provided with third through-hole 230, the 3rd acoustical-electrical transducer 113 receives voice signal by third through-hole 230, the 3rd acoustical-electrical transducer is connected with signal processor 12, and the signal of 12 pairs of the 3rd acoustical-electrical transducers 113 of signal processor exports central processing unit 14 to after processing.

Housing 2 comprises first surface, second surface and the 3rd surface, the first through hole, the second through hole and third through-hole are arranged at respectively on first surface, second surface and the 3rd surface, for receiving the voice signal from different directions, and send respectively voice signal to the first cavity 21, the second cavity 22 and the 3rd cavity 23 built-in first sound electric transducer 111, rising tone electric transducer 112 and the 3rd acoustical-electrical transducer 113.Housing 2 can adopt metal material to make, and to avoid electromagnetic interference, affects the tonequality of microphone.Further, the first sound panel 31 is every being located between the first cavity 21 and the second cavity 22, and the second sound panel 32 is respectively every being located between the 3rd cavity 23 and the first cavity 21, the second cavity 22, and the first sound panel 31 is mutually vertical with the second sound panel 32.Such space structure is conducive to each microphone to be arranged on more compactly in housing 2, has reduced and has taken up room.

First sound electric transducer 111, rising tone electric transducer 112 and the 3rd acoustical-electrical transducer 113 are for being converted to the signal of telecommunication by the above-mentioned voice signal from different directions, concrete, it can be comprised of metal cladding film and back pole plate, or is comprised of silicon base vibrative membrane and silicon-based backing electrode plate.

Signal processor 12 comprises the first preamplifier 121, the second preamplifier 122, the 3rd preamplifier 123, the first analog to digital converter 124, the second analog to digital converter 125, the 3rd analog to digital converter 126 and interface control module 127, described interface control module 127 comprises first input end 1271, the second input 1272, the 3rd input 1273 and output 1274, and concrete annexation is as follows:

First sound electric transducer 111, the first preamplifier 121, the first analog to digital converter 124 are connected successively with first input end 1271;

Rising tone electric transducer 112, the second preamplifier 122, the second analog to digital converter 125 are connected successively with the second input 1272;

The 3rd acoustical-electrical transducer 113, the 3rd preamplifier 123, the 3rd analog to digital converter 126 are connected successively with the 3rd input 1273;

In interface control module 127 control first input end 1271, the second input 1272 and the 3rd inputs 1273, at least the signal of one end exports central processing unit 3 to.

Concrete, the first preamplifier 121, the second preamplifier 122 and the 3rd preamplifier 123 can be the amplification control circuits consisting of technotron, the signal that is respectively used to first sound electric transducer 111, rising tone electric transducer 112 and the 3rd acoustical-electrical transducer 113 to transmit is amplified to rated voltage, normally about 1V, and can carry out various tonequality control to original sound source signal, to modify and to beautify sound, reach the tonequality of high-fidelity or user's requirement.

The first analog to digital converter 124, the second analog to digital converter 125, the 3rd analog to digital converter 126 are for converting analog signal to digital signal, in the present embodiment, it can be delta modulation type analog to digital converter, delta modulation type analog to digital converter comprises differential amplifier, integrator, comparator and 1bit DAC(Digital Audio Compress, digital audio compression form), the circuit unit such as wave digital lowpass filter forms, delta modulation type analog to digital converter has that circuit structure is simple, tonequality and the feature such as anti-channel error code signal is good.Certainly, in other embodiments, also can adopt the analog to digital converter of pulse code modulation type.

Interface control module 127 adopts time division multiplexer, time division multiplexer comprises clock signal input terminal and control signal input, central processing unit 3 is for passing through clock signal input terminal CLK to time division multiplexer transmit clock signal, and by control signal input to time division multiplexer input control signal, control signal for control time division multiplexer by first input end 1271, the second input 1272 and the 3rd input 1273 at least the signal of one end export.In the present embodiment, time division multiplexer has adopted the multiplexed technology of synchronous time division, it adopts the fixed time slicing method of salary distribution, the time of signal transmission is divided into the specific time period (one-period) continuously by length-specific, again be divided into a plurality of time slots of equal length each time period, each time slot is distributed to each railway digital signal in a fixed manner, and each railway digital signal is at each time period order-assigned to time slot all.The signal that interface control module 127 receives a plurality of acoustical-electrical transducers is transferred to central processing unit 3 by its signal output part DATA by signal, has saved the circuit of transfer of data, is conducive to the cabling of printed circuit board (PCB), has reduced the area of cabling.Clock signal is provided by central processing unit 3, to guarantee to transmit the synchronism of data.In addition, the control signal input CTR of interface control module 127, can provide input control signal by universal input/output GPIO of central processing unit 3, according to the difference of applied signal voltage, can realize various modes: voltage is 0 pattern between 0～1V, only transmit the voice signal of an acoustical-electrical transducer; Voltage is 1 pattern between 1～2V, the voice signal of two acoustical-electrical transducers of transmission; Voltage is 2 patterns between 2～3V, can transmit the voice signal of three acoustical-electrical transducers simultaneously.Interface control module 127 is dressed up frame by the data of a plurality of acoustical-electrical transducers, and each frame sends in a period of time, and each time slot carries a railway digital signal, so just multiple signals can be transmitted together in same channel.Transmission when having completed microphone multiple signals.

Voltagre regulator module 13 one end are connected with power supply 4, and one end is connected with the 3rd analog to digital converter 126 with described first sound electric transducer 111, rising tone electric transducer 112, the 3rd acoustical-electrical transducer 113, the first preamplifier 121, the second preamplifier 122, the 3rd preamplifier 123, the first analog to digital converter 124, the second analog to digital converter 125 respectively.Voltagre regulator module 13 is for exporting different burning voltages according to the demand of modules, and assurance modules can normally be worked under rated voltage.

Signal processor 12 and Voltagre regulator module 13 become one by integrated circuit unit 14, and first sound electric transducer, rising tone electric transducer and the 3rd acoustical-electrical transducer are connected with integrated circuit unit by wire respectively.In order to make the connection of signal processor 12 and each acoustical-electrical transducer more simple and convenient, signal processor 12 also can be arranged in housing 2, and to make signal processor 12 when working, not produce the situation that signal interferes with each other with each acoustical-electrical transducer, sound panel also comprises the 3rd sound panel 33, the first sound panel 31, the second sound panel 32 and the 3rd sound panel 33 are divided into the first cavity 21 by housing 2, the second cavity 22 and the 3rd cavity 23 and the 4th cavity 24, the 4th cavity 24 is signal processor 12 for accommodating integrated circuit unit 14, first sound electric transducer 111, rising tone electric transducer 112 and the 3rd acoustical-electrical transducer 113 are electrically connected to integrated circuit unit 14 by wire respectively.

In the present embodiment, integrated circuit unit 14 adopts soldered balls display encapsulation BGA to be welded on pad, and BGA packaged type has that package area is little, good electrical property, reliability high.Certainly, in other embodiments, also each element in integrated circuit unit 14 can be welded on flexible PCB FPC.

By the microphone apparatus of the utility model embodiment, at least two acoustical-electrical transducers and signal processor are integrated to as a whole microphone combination, compare with traditional microphone apparatus being formed by a plurality of single microphone combination, structure stack design space and cloth board space have been saved, simplified the line of circuit, miniaturization and the ultrathin demand of terminal equipment have been met, and can be according to the actual requirements, increase acoustical-electrical transducer with and corresponding signal processor meet the demand of various types of voice processing capacity.

The utility model embodiment also provides a kind of terminal, and this terminal comprises microphone apparatus and the motherboard circuit in the corresponding embodiment of above-mentioned Fig. 1, and microphone apparatus is connected with motherboard circuit.Wherein, the specific implementation of microphone apparatus can be participated in above-described embodiment, repeats no more here.Motherboard circuit comprises the control modules such as central processor CPU, for controlling the signal transmission of microphone apparatus.

Step in the utility model embodiment method can be carried out according to actual needs order and adjusted, merges and delete.

Module or unit in the utility model embodiment terminal can merge according to actual needs, divide and delete.

Module or unit described in the utility model embodiment, can pass through universal integrated circuit, CPU(Central Processing Unit for example, central processing unit), or by ASIC(Application Specific Integrated Circuit, application-specific integrated circuit (ASIC)) realize.

One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, to come the hardware that instruction is relevant to complete by computer program, described program can be stored in a computer read/write memory medium, this program, when carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.

Above disclosed is only the utility model preferred embodiment, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim, still belongs to the scope that the utility model is contained.

Claims

1. a microphone apparatus, is characterized in that, comprises microphone circuit, housing and sound panel;

2. microphone apparatus as claimed in claim 1, is characterized in that, described microphone circuit also comprises the 3rd acoustical-electrical transducer, and described sound panel is also divided into described housing the 3rd cavity;

On the chamber wall of described the 3rd cavity, be provided with third through-hole, described the 3rd acoustical-electrical transducer receives voice signal by described third through-hole, described the 3rd acoustical-electrical transducer is connected with described signal processor, and described signal processor exports described central processing unit to for after the signal of described the 3rd acoustical-electrical transducer is processed.

3. microphone apparatus as claimed in claim 2, it is characterized in that, described housing comprises first surface, second surface and the 3rd surface, it is upper that described the first through hole, described the second through hole and described third through-hole are arranged at respectively described first surface, described second surface and described the 3rd surface, for receiving the voice signal from different directions.

4. microphone apparatus as claimed in claim 3, it is characterized in that, sound panel comprises the first sound panel and the second sound panel, described the first sound panel is every being located between described the first cavity and described the second cavity, described the second sound panel is respectively every being located between described the 3rd cavity and described the first cavity, described the second cavity, and described the first sound panel is mutually vertical with described the second sound panel.

5. the microphone apparatus as described in claim 3 or 4, it is characterized in that, described signal processor comprises the first preamplifier, the second preamplifier, the 3rd preamplifier, the first analog to digital converter, the second analog to digital converter, the 3rd analog to digital converter and interface control module, described interface control module comprises first input end, the second input, the 3rd input and output

Described first sound electric transducer, described the first preamplifier, described the first analog to digital converter are connected successively with described first input end;

Described rising tone electric transducer, described the second preamplifier, described the second analog to digital converter and described the second input are connected successively;

Described the 3rd acoustical-electrical transducer, described the 3rd preamplifier, described the 3rd analog to digital converter and described the 3rd input are connected successively;

Described interface control module for control described first input end, described the second input and described the 3rd input at least the signal of one end export described central processing unit to.

6. microphone apparatus as claimed in claim 5, is characterized in that, described interface control module adopts time division multiplexer, and described time division multiplexer comprises clock signal input terminal and control signal input;

Described central processing unit for by described clock signal input terminal to described time division multiplexer transmit clock signal, and by described control signal input to described time division multiplexer input control signal,

Described control signal for control described time division multiplexer by described first input end, described the second input and described the 3rd input at least the signal of one end export.

7. microphone apparatus as claimed in claim 6, it is characterized in that, also comprise Voltagre regulator module, described Voltagre regulator module one end is connected with power supply, and one end is connected with described first sound electric transducer, described rising tone electric transducer, described the 3rd acoustical-electrical transducer, described the first preamplifier, described the second preamplifier, described the 3rd preamplifier, described the first analog to digital converter, described the second analog to digital converter and described the 3rd analog to digital converter respectively.

8. microphone apparatus as claimed in claim 7, it is characterized in that, described signal processor and described Voltagre regulator module become one by integrated circuit unit, and described first sound electric transducer, described rising tone electric transducer and described the 3rd acoustical-electrical transducer are connected with described integrated circuit unit by wire respectively.

9. microphone apparatus as claimed in claim 8, is characterized in that, described integrated circuit unit adopts soldered ball display welded encapsulation on pad.

10. a terminal, is characterized in that, comprises as the microphone apparatus of any one in claim 1 to 9 and motherboard circuit, and described microphone apparatus is connected with described motherboard circuit.