CN216437429U

CN216437429U - Camera microphone integrated device, control circuit thereof and intelligent terminal applying camera microphone integrated device

Info

Publication number: CN216437429U
Application number: CN202122611551.XU
Authority: CN
Inventors: 杨军
Original assignee: Shenzhen Wedoinnov Co ltd
Current assignee: Shenzhen Wedoinnov Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-05-03
Anticipated expiration: 2031-10-28

Abstract

The utility model provides a camera microphone integrated device and a control circuit thereof, an intelligent terminal using the same, wherein the control circuit comprises at least one microphone unit, a DSP voice processor, a CPU processor, a HUB transponder, a camera unit, an audio output circuit unit and an externally-placed loudspeaker; the microphone unit is connected with the DSP voice processor, and the DSP voice processor passes through the I2S interface and is connected with CPU, and the HUB repeater is connected with CPU through first USB interface, and the second USB interface of HUB repeater links to each other with the camera unit, and the third USB interface links to each other with the external data line, and audio output circuit unit one end is connected with CPU, and the other end is connected with the loudspeaker of putting outward. The device can pick up sound and reduce noise at a long distance, and ensure that the power supply stably reduces the external amplification distortion; the integrated sound cavity improves the sound quality control cost; the phase guide tube improves the sound quality permeability and the heat dissipation; the tripod can be adjusted horizontally; the distance between the double microphones and the externally-placed loudspeaker is used for providing environment for the algorithm.

Description

Camera microphone integrated device, control circuit thereof and intelligent terminal applying camera microphone integrated device

Technical Field

The utility model belongs to the technical field of camera microphone integrated equipment, more specifically say, relate to a camera microphone integrated device and control circuit, use its intelligent terminal.

Background

At present, with the popularization of personal computers, small personal computers bring much convenience to people, for example, voice and video calls can be made with friends, relatives, colleagues and the like which are located at far ends in geographical distance, which requires that the personal computers have a series of functions such as microphones, cameras, loudspeaker and the like. However, at present, a desktop computer is generally not equipped with a camera, and although a microphone input interface and an earphone output interface are arranged, corresponding accessories need to be purchased additionally, so that the use cost is increased and inconvenience is caused; although the notebook computer is basically equipped with the functions, the effect of the sound output of the externally-arranged loudspeaker and the sound input of the microphone is not ideal in practical use, for example, the microphone can only support a user to speak at a distance of about 50CM from the computer, and an externally-connected common USB sound box has the condition of poor echo conversation effect, so that poor use experience is brought to the user.

Therefore, the technical problems to be solved in the art are that the traditional personal desktop computer is inconvenient to use and increases the cost due to the external connection of a camera and a microphone, the notebook computer is poor in microphone and loudspeaker effect, and the external sound box is poor in echo effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve present external camera of personal desktop computer and microphone and lead to using inconvenient and cost-push to and notebook computer from take the microphone and put the not good, the not good technical problem of external audio amplifier echo effect of loudspeaker outward, provide a camera microphone integrated device and control circuit, use its intelligent terminal.

For solving the above problem, the utility model discloses a technical scheme be: provided is a control circuit of a camera microphone integrated device, the control circuit of the camera microphone integrated device including:

the system comprises an external data line, at least one microphone unit, a DSP (digital signal processor), a CPU (central processing unit), a HUB repeater, a camera unit, an audio output circuit unit and an external loudspeaker;

the microphone unit is connected with the DSP voice processor, the DSP voice processor is connected with CPU through the I2S interface, the HUB repeater is connected with CPU through first USB interface, the second USB interface of HUB repeater links to each other with the camera unit, the HUB repeater links to each other with the external data line through the third USB interface, the one end and the CPU of audio output circuit unit are connected, the other end and the loudspeaker that play of audio output circuit unit are connected.

Further, the audio output circuit unit includes: and one end of the PA amplifying circuit is connected with the CPU, one end of the PA amplifying circuit is connected with the DCDC converter of the external data line, the other end of the DCDC converter is connected with the PA amplifying circuit, and the external loudspeaker is connected with the PA amplifying circuit.

Furthermore, the input end of the external data line is connected with a USB interface.

Preferably, there are two microphone units.

The utility model also provides a camera microphone integrated device, including adjustable bracket, integrated audio amplifier, the integrated audio amplifier is integrated with the control circuit of above-mentioned camera microphone integrated device, and integrated audio amplifier is rectangular shape, and one side along its length direction in the integrated audio amplifier is equipped with the loudspeaker outward towards the decorative hole, and its opposite side is equipped with two microphone units, and microphone unit is equipped with the sound transmission hole at the front end and the top end of integrated audio amplifier facing microphone unit; the adjustable support includes:

a base, a rear end of a top of the base being inclined downward and extending to a bottom front end of the base;

the integrated loudspeaker box comprises an L-shaped support, wherein the rear end of a supporting part of the L-shaped support is hinged with the rear end of a base, the front end of the supporting part of the L-shaped support is bent towards the base to form a bent part, and an integrated loudspeaker box is arranged at the top end of the supporting part;

the supporting part is parallel to the bottom supporting plane of the base, the tail end of the bending part far away from the supporting part extends towards the front of the base, the end face of the tail end of the bending part far away from the supporting part is superposed with the bottom supporting plane of the base, and at the moment, the adjustable support is in an initial state;

when the adjustable support is in an initial state, the supporting part rotates towards the direction of the inclined plane far away from the top end of the base until the tail end of the bending part far away from the supporting part abuts against the base, and the adjustable support is switched to an inclined state.

Preferably, when the supporting portion rotates 15 degrees in the direction away from the inclined surface at the top end of the base, the wear pad 921 of the bending portion away from the end of the supporting portion abuts against the base;

when the supporting part rotates for 15 degrees towards the direction of the inclined plane close to the top end of the base, the bending part abuts against the inclined plane at the top end of the base towards the wear pad at the bottom end of the base.

Further, still include:

one end of the phase reversal tube is connected with the loudspeaker, and the other end of the phase reversal tube is provided with a tube opening at the rear end of the integrated sound box; and the integrated sound cavity is arranged between the external loudspeaker and the decorative hole arranged at the top of the integrated sound box.

Preferably, the distance between the sound transmission holes of the two microphone units is 60 mm, and the sound transmission hole far away from the external speaker is close to one end of the integrated sound box far away from the external speaker.

Furthermore, the top end of the supporting part is provided with a rotating seat, and the bottom end of the integrated sound box is rotatably connected with the rotating seat through a supporting shaft;

the camera unit is arranged in the middle of the integrated sound box, and the camera of the camera unit is arranged at the rear end, facing the camera unit, of the integrated sound box.

The utility model also provides an intelligent terminal, including the display screen, still include foretell camera microphone integrated device, pedestal mounting is on the frame top of display screen.

Compared with the prior art, the utility model provides a camera microphone integrated device and control circuit, the intelligent terminal who uses it have following beneficial effect:

1. the utility model provides a camera microphone integrated device and control circuit, use its intelligent terminal, convenient to use connect succinctly, only need connect a USB data line, can realize the input and the output of audio frequency and video;

2. the whole machine audio link is used for transmitting collected voice data to a special voice DSP (digital signal processor) for algorithm processing by two fully directional microphones, and then performing secondary processing on the data and one path of echo cancellation signals of a main CPU and the audio DSP through an I2S interface to realize remote pickup and noise reduction, and after echo cancellation, transmitting the data to a remote end through a USB (universal serial bus) interface; in the aspect of audio output, the audio output is connected to a main CPU and an audio DSP through a HUB chip, one path is used for echo cancellation, the other path is connected to a power amplifier circuit, and then audio is output by an external loudspeaker, and a set of DCDC booster circuits is specially added for power supply of the power amplifier, so that the power stability of the power supply can be ensured, and the overall distortion of the external loudspeaker is further reduced;

3. the integrated sound box of the integrated sound box adopts an integrated sound cavity design, and an independent sound cavity is not arranged in the integrated sound box, so that the sound quality can be greatly improved, and meanwhile, the production cost is well controlled;

4. the integrated sound box adopts the design with the phase guide tube, so that the sound quality and the permeability are better, and the heat dissipation can be provided for the whole machine to a certain extent.

5. The integrated sound box can be mounted on a frame of a television or a display, supports the assembly of an adjustable tripod and can realize the inclined adjustment of a horizontal included angle of 15 degrees up and down.

6. The double microphones are distributed right in front of the left side and are separated from the right loudspeaker by a sufficient distance, so that a good physical environment is provided for algorithm implementation.

Drawings

Fig. 1 is a schematic block diagram of a control circuit of a camera microphone integrated device according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of an overall structure of an embodiment of a camera microphone integration apparatus according to the present invention;

fig. 3 is a schematic perspective view of an overall structure of an embodiment of a camera-microphone integrated device according to the present invention;

fig. 4 is a front view of an embodiment of a camera microphone assembly provided by the present invention;

fig. 5 is a rear view of an embodiment of a camera microphone assembly according to the present invention;

fig. 6 is a side view of an embodiment of a camera microphone assembly according to the present invention;

fig. 7 is a top view of an embodiment of a camera microphone assembly according to the present invention;

fig. 8 is a bottom view of an embodiment of the camera microphone assembly according to the present invention.

Wherein, in the drawings, the reference numerals are mainly as follows:

1-a microphone unit; 11-sound transmission holes; 2-DSP speech processor; 3-CPU; 4-HUB repeater; 5-a camera unit; 51-external data lines; 6-an audio output circuit unit; 63-externally placing a horn; 61-a DCDC converter; 62-PA amplifying circuit; 7-an integrated sound box; 71-a decorative hole; 72-inverter tube; 721-orifice of tube; 8-a base; 81-a rotating shaft; 9-a scaffold; 91-a support; 92-bending part; 921-wear pad; 93-a rotating base; 931-supporting the shaft.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings 1 to 8 and the embodiments.

Referring to fig. 1, the present invention provides a control circuit of a camera microphone integrated device, the control circuit of the camera microphone integrated device includes:

an external data line 51, at least one microphone unit 1 (preferably two), a DSP voice processor 2, a CPU3, a HUB repeater 4, a camera unit 5, an audio output circuit unit 6, and an external speaker 63.

In this embodiment, the overall audio link of the control circuit of the camera microphone integrated device is as follows:

the microphone unit 1 is connected with the DSP voice processor 2, and transmits the collected voice data to the special DSP voice processor 2 for algorithm processing; the DSP voice processor 2 is connected with the CPU3 through an I2S interface, so that data are secondarily processed with one path of echo cancellation signals of the CPU3 and the DSP voice processor 2 through an I2S interface, and the functions of remote sound pickup, noise reduction, echo cancellation and the like are realized; the HUB repeater 4 is connected with the CPU3 through a first USB interface, specifically, through a USB data line; then the processed data is transmitted to a far end through a USB interface; the second USB interface of the HUB repeater 4 is connected to the camera unit 5, so as to implement the function of outputting the camera video; the HUB repeater 4 is connected with the external data line 51 through a third USB interface; one end of the audio output circuit unit 6 is connected with the CPU3 and is used for echo cancellation; the other end of the audio output circuit unit 6 is connected with an external speaker 63 to realize audio output.

As a preferred embodiment, the audio output circuit unit 6 includes: a PA amplification circuit 62, one end of the PA amplification circuit 62 being connected to the CPU 3; one end of the DCDC converter 61 is connected with the external data line 51, the other end of the DCDC converter 61 is connected with the PA amplifying circuit 62, the external loudspeaker 63 is connected with the PA amplifying circuit 62, data is firstly received by a power amplifier, a set of DCDC booster circuit is specially added for power supply of the power amplifier, and the audio is output by the external loudspeaker 63 through the amplifying circuit and the booster circuit, so that the power stability of the DCDC converter can be ensured, and the overall distortion of the external loudspeaker is further reduced.

In a preferred embodiment, the input end of the external data line is connected with a USB interface.

As a preferred embodiment, there are two microphone units.

Referring to fig. 2-8, the present invention further provides a camera microphone integrated device, which includes an adjustable bracket 9 and an integrated sound box 7, wherein the integrated sound box 7 is integrated with a control circuit of the camera microphone integrated device, the integrated sound box 7 is a long strip (preferably rectangular), the top of the integrated sound box 7 is provided with a plurality of decoration holes 71, and the top of the integrated sound box 7 is preferably arc-shaped and protruded and extends over the decoration holes 71; the integrated sound box 7 is provided with an external speaker 63 facing the decoration hole 71 on one side in the length direction thereof, and two microphone units 1 on the other side thereof, wherein the microphone units 1 are preferably all-directional microphones, and the sound transmission hole 11 of the microphone unit 1 is provided at the front end of the integrated sound box 7 facing the microphone unit 1.

Referring to fig. 2-6, in the present embodiment, the adjustable support 9 includes:

a base 8, wherein the rear end of the top of the base 8 is inclined downwards and extends to the front end of the bottom of the base 8, and the top end of the base 8 forms an inclined surface which is inclined downwards (at a negative angle relative to the horizontal plane) from back to front; the rear end of the supporting portion 91 of the L-shaped bracket 9 is hinged to the rear end of the base 8 through the rotating shaft 81, the front end of the supporting portion 91 of the L-shaped bracket 9 is bent towards the base 8 to form a bent portion 92, and as an embodiment, an opening is formed in the middle of the bent portion 92, so that materials are saved, the cost is reduced, and the overall weight of the device is reduced.

In the present embodiment, the integrated sound box 7 is mounted on the top end of the support portion 91. In a preferred embodiment, a top end of the supporting portion 91 is provided with a rotating base 93, and a bottom end of the integrated sound box 7 is rotatably connected with the rotating base 93 through a supporting shaft 931, so that the integrated sound box 7 can rotate 360 degrees around a plane parallel to the top end of the supporting portion 91.

When adjustable bracket 9 is in initial condition, supporting part 91 is on a parallel with the bottom support plane of base 8, and the end that supporting part 91 was kept away from to the portion of bending 92 extends to the place ahead of base 8, and the terminal surface that supporting part 91 was kept away from to the portion of bending 92 coincide in the support plane of the bottom of base 8, and the top of supporting part 91 is on a parallel with the support plane of the bottom of base 8 this moment, and integrated audio amplifier 7 level sets up.

When the adjustable bracket 9 is in the initial state, the supporting portion 91 rotates in the direction away from the inclined surface at the top end of the base 8 until the end of the bending portion 92 away from the supporting portion 91 abuts against the base 8, and the adjustable bracket 9 is switched to the inclined state.

As a preferred embodiment, when the adjustable bracket 9 is in the initial state, and the supporting portion 91 rotates 15 degrees in the direction away from the inclined surface at the top end of the base 8, the wear pad 921 at the end of the bending portion 92 away from the supporting portion 91 abuts against the base 8, so that the adjustment angle of the adjustable bracket 9 is limited to form a positive 15-degree included angle with the horizontal plane (inclined 15 degrees upwards from the back to the front with respect to the horizontal plane), and meanwhile, the friction loss between the bending portion 92 and the base 8 is reduced;

when adjustable support was in initial condition, when the supporting part rotated 15 degrees to the direction of the inclined plane that is close to the top of base, the portion of bending was to the wearing pad 921 butt on the inclined plane on the top of base of the bottom of base for adjustable support 9's angle of regulation restriction is personally submitted negative 15 degrees contained angles (relative horizontal plane 15 degrees angles of downward sloping from back to front) with the level, alleviates the friction loss between the portion of bending 92 and the base 8 simultaneously.

Referring to fig. 3, as a preferred embodiment, the camera microphone integrated device provided by the present invention further includes:

one end of the inverter tube 72 is connected to the loudspeaker 63, and the other end of the inverter tube 72 is provided with a tube opening 721 at the rear end of the integrated sound box 7, so that the sound quality permeability of the integrated sound box 7 is better, and the heat dissipation can be provided for the whole machine to a certain extent. As a more preferred embodiment, the method further comprises the following steps: integral type sound chamber is located put loudspeaker 63 outward with between the decoration hole 71, independent sound chamber is not established to inside, can compromise control manufacturing cost when promoting tone quality.

Referring to fig. 2 and 7, as a preferred embodiment, the distance between the sound transmission holes 11 of the two microphone units 1 is 60 mm, and the sound transmission hole 11 far from the loud speaker 63 is close to one end of the integrated sound box 7 far from the loud speaker 63, that is, the two microphone units 1 are distributed right in front of the left side of the integrated sound box 7 and are separated from the loud speaker 63 on the right side by a sufficient distance, so as to provide a good physical environment for the algorithm implementation of the audio link of the whole machine.

Referring to fig. 2, 4 and 7, in the present embodiment, the camera unit 5 is disposed in the middle of the integrated sound box 7, and the camera of the camera unit 5 is disposed at the rear end of the integrated sound box 7 facing the camera unit 5.

The utility model also provides an intelligent terminal, including the display screen, still include foretell camera microphone integrated device, base 8 is installed in the frame top plane of display screen through the support plane of its bottom, makes integrated audio amplifier 7 keep the level with the frame top plane of display screen under initial condition.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A control circuit of a camera microphone integrated device, the control circuit of the camera microphone integrated device comprising:

the microphone unit is connected DSP speech processor, DSP speech processor passes through the I2S interface and is connected with CPU, the HUB repeater through first USB interface with CPU connects, the second USB interface of HUB repeater with the camera unit links to each other, the HUB repeater through the third USB interface with the external data line links to each other, the one end of audio output circuit unit with CPU connects, the other end of audio output circuit unit with loudspeaker is connected outward.

2. The control circuit according to claim 1, wherein the audio output circuit unit includes: and one end of the PA amplifying circuit is connected with the CPU, one end of the PA amplifying circuit is connected with the DCDC converter of the external data line, the other end of the DCDC converter is connected with the PA amplifying circuit, and the external loudspeaker is connected with the PA amplifying circuit.

3. The control circuit of claim 2, wherein an input terminal of the external data line is connected to a USB interface.

4. The control circuit of claim 2, wherein there are two of the microphone units.

5. The utility model provides a camera microphone integrated device, includes adjustable support, integrated audio amplifier, its characterized in that:

the integrated sound box is integrated with a control circuit of the camera and microphone integrated device as claimed in claim 1, the integrated sound box is strip-shaped, one side of the integrated sound box along the length direction is provided with the loudspeaker facing the top of the integrated sound box, the other side of the integrated sound box is provided with two microphone units, and the microphone units are provided with sound transmission holes at the front end and the top end of the integrated sound box facing the microphone units; the adjustable support includes:

a base having a top portion with a rear end inclined downward and extending to a bottom front end of the base;

the integrated loudspeaker box comprises an L-shaped support, wherein the rear end of a supporting part of the L-shaped support is hinged with the rear end of the base, the front end of the supporting part of the L-shaped support is bent towards the base to form a bent part, and the integrated loudspeaker box is installed at the top end of the supporting part;

the supporting part is parallel to a bottom supporting plane of the base, the tail end of the bending part far away from the supporting part extends towards the front of the base, the end face of the tail end of the bending part far away from the supporting part is superposed with the bottom supporting plane of the base, and at the moment, the adjustable support is in an initial state;

when the adjustable support is in an initial state, the supporting portion rotates towards the direction of the inclined plane far away from the top end of the base until the tail end, far away from the supporting portion, of the bending portion abuts against the base, and the adjustable support is switched to an inclined state.

6. The camera microphone integrated device as claimed in claim 5, wherein when the supporting portion rotates 15 degrees away from the inclined plane at the top end of the base, the wear pad at the end of the bending portion away from the supporting portion abuts against the base;

when the supporting part rotates for 15 degrees towards the direction of the inclined plane close to the top end of the base, the bending part faces the abrasion-resistant pad at the bottom end of the base and is abutted to the inclined plane at the top end of the base.

7. The camera-microphone assembly of claim 5, further comprising:

one end of the phase reversal tube is connected with the loudspeaker, and the other end of the phase reversal tube is provided with a tube orifice at the rear end of the integrated sound box;

and the integrated sound cavity is arranged between the external loudspeaker and the decorative hole arranged at the top of the integrated sound box.

8. The camera microphone integrated device according to claim 5, wherein the pitch of the sound transmission holes of the two microphone units is 60 mm, and the sound transmission hole far away from the external speaker is close to one end of the integrated sound box far away from the external speaker.

9. The camera microphone integrated device according to claim 5, wherein a rotary base is provided at a top end of the supporting portion, and a bottom end of the integrated speaker is rotatably connected to the rotary base through a supporting shaft;

the camera unit is arranged in the middle of the integrated sound box, and the camera of the camera unit is arranged at the rear end of the integrated sound box facing the camera unit.

10. An intelligent terminal, comprising a display screen, and further comprising the camera microphone integrated device as claimed in any one of claims 5 to 9, wherein the base is mounted on the top of the frame of the display screen.