CN203708324U - Shooting device with audio and video inputs and outputs - Google Patents
Shooting device with audio and video inputs and outputs Download PDFInfo
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- CN203708324U CN203708324U CN201320729743.3U CN201320729743U CN203708324U CN 203708324 U CN203708324 U CN 203708324U CN 201320729743 U CN201320729743 U CN 201320729743U CN 203708324 U CN203708324 U CN 203708324U
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- 238000003032 molecular docking Methods 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 7
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Abstract
The utility model discloses a shooting device with audio and video inputs and outputs. The shooting device comprises a shooting circuit module, a connection port, and an audio and video signal input and output control circuit module, wherein the connection port is used for connecting with an audio and video signal connection wire to input an audio signal and output audio and video signals; and the audio and video signal input and output control circuit module is connected between the shooting circuit module and the connection port, and used for detecting whether a signal connection wire is connected in or not, and identifying the audio and video signal connection wire connected in to control the input of the audio signal and the output of the audio and video signals. The shooting device with the audio and video inputs and outputs, achieves docking with external audio and video devices so as to transmit audio and video signals with each other, at the time when the audio and video connection wire is connected in the connection terminal, only by arranging the connection port, so that external space of the shooting device is saved, an internal control circuit is saved, and usage is made more convenient and fast.
Description
Technical field
The utility model relates to a kind of filming apparatus, relates in particular to the filming apparatus of a kind of tool audio-video signal input and output.
Background technology
Along with the lifting day by day of people's life, the electronic products such as such as digital camera of filming apparatus enter huge numbers of families, leave eternal memory with the life and the household that think oneself, filming apparatus in use, often want and be connected with external audio & video equipment, traditional method is that filming apparatus is by arranging two connectivity ports, utilize two signal connecting lines to realize the input and output of audio-video signal, not only increase the wiring of filming apparatus external-connected port and the space of external-connected port, and used very inconvenience.
Therefore visible, existing filming apparatus not only, at circuit-line, structure space or aspect easy to use, still exists deficiency, and urgently to be further improved.
Summary of the invention
Main purpose of the present utility model is to provide the filming apparatus of a kind of tool audio-video signal input and output, is intended to solve existing filming apparatus and need uses in the time of audio video transmission simultaneously the defect of two ports.
To achieve these goals, the utility model provides the filming apparatus of a kind of tool audio-video signal input and output, comprising: take circuit module; A connectivity port, for accessing Audio and Video Signal Cable with input audio signal and output sound vision signal; Audio-video signal input/output control circuit module, be connected between described shooting circuit module and described connectivity port, for detection of whether having signal connecting line access, and the Audio and Video Signal Cable that identification accesses is to control the input of audio signal and the output of audio-video signal.
Preferably, described connectivity port is provided with L channel end, R channel end, video end, test side and earth terminal.
Preferably, described connectivity port is the connectivity port that test side is connected with video end in the time that Audio and Video Signal Cable does not insert, test side and video end disconnect mutually in the time that Audio and Video Signal Cable inserts.
Preferably, described Audio and Video Signal Cable comprises audio signal input connecting line and audio-video signal output connecting line.
Preferably, described audio signal input connecting line is provided with the outer wheat line connector for being connected with described connectivity port, and the outer wheat line connector of described audio signal input connecting line is provided with sound channel terminal and earth terminal; Access the state of described connectivity port at described audio signal input connecting line, the sound channel terminal on described outer wheat line connector is connected with R channel end or the L channel end of described connectivity port, earth terminal on described outer wheat line connector is connected with the earth terminal of described connectivity port.
Preferably, described audio-video signal output connecting line is provided with the AV line connector for being connected with described connectivity port, and the AV line connector of described audio-video signal output connecting line is provided with L channel terminal, R channel line terminals, video line terminal and earth terminal; Access the state of described connectivity port at described audio-video signal output connecting line, the L channel terminal on described outer wheat line connector is connected with the L channel end of described connectivity port, R channel line terminals on described outer wheat line connector is connected with the R channel end of described connectivity port, video line terminal on described outer wheat line connector is connected with the video line end of described connectivity port, earth terminal on described outer wheat line connector is connected with the earth terminal of described connectivity port.
Preferably, described audio-video signal input/output control circuit module, comprising:
Whether Audio and Video Signal Cable detecting unit, for detection of having Audio and Video Signal Cable to insert connectivity port, insert as detected without connecting line, is defined as normal mode of operation; There is Audio and Video Signal Cable access as detected, be defined as signal transfer mode;
Audio-video signal input and output detecting unit, under signal transfer mode, automatically detecting the Audio and Video Signal Cable accessing is audio signal input connecting line or audio-video signal output connecting line;
Audio signal input unit, for the audio signal input connecting line recognizing according to audio-video signal input and output detecting unit, input audio signal;
Audio-video signal output unit, for the audio-video signal output connecting line recognizing according to audio-video signal input and output detecting unit, output sound vision signal.
Preferably, described Audio and Video Signal Cable detecting unit comprises processor, power supply, the 86 resistance and the 94 resistance of being located at described shooting circuit module, described power supply is connected to the audio-video switch end of described processor through described the 86 resistance, described the 94 resistance one end is connected to the audio-video switch end of described processor, the test side that the other end connects described connectivity port.
Preferably, described audio-video signal input and output detecting unit comprises the processor of being located at described shooting circuit module, power supply, the 101 resistance, the 103 resistance and the 47 electric capacity, described power supply is connected to the audio frequency and video Enable Pin of described processor through described the 101 resistance and described the 103 resistance, the node of described the 101 resistance and described the 103 resistance is connected to L channel end or the R channel end of described connectivity port, one end of described the 47 electric capacity is connected to the audio frequency and video Enable Pin of described processor, other end ground connection.
Preferably, described audio-video signal input/output control circuit module, also comprises:
Bias unit, for providing a bias voltage to audio signal;
Impedance matching unit, for carrying out impedance matching to vision signal.
The filming apparatus of the utility model tool audio-video signal input and output, by a connectivity port is set, in the time that Audio and Video Signal Cable is inserted to this connectivity port, can realize with external audio & video equipment dock with the mutual acoustic vision signal of external audio & video equipment, obtained following technique effect:
1, saved the space outerpace of taking equipment;
2, simplified internal control circuit;
3, operation is more efficient and convenient.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the filming apparatus of a kind of tool audio-video signal of the utility model input and output;
Fig. 2 is an example structure block diagram of the filming apparatus of a kind of tool audio-video signal of the utility model input and output;
Fig. 3 is the structural representation of the filming apparatus audio signal input connecting line of a kind of tool audio-video signal of the utility model input and output;
Fig. 4 is the structural representation of the filming apparatus audio-video signal output connecting line of a kind of tool audio-video signal of the utility model input and output;
Fig. 5 is the filming apparatus audio-video signal input/output control circuit module one embodiment circuit diagram of a kind of tool audio-video signal of the utility model input and output.
Embodiment
Should be appreciated that embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
With reference to Fig. 1, Fig. 1 is the circuit block diagram of the filming apparatus of a kind of tool audio-video signal input and output.
The one that the utility model provides only need to arrange a connectivity port, in the time inserting corresponding Audio and Video Signal Cable, can realize the filming apparatus inputing or outputing of audio-video signal, and it comprises: take circuit module 10; A connectivity port 30, for accessing Audio and Video Signal Cable 40 with input and output audio-video signal; Audio-video signal input/output control circuit module 20, be connected between described shooting circuit module 10 and described connectivity port 30, for detection of whether having signal connecting line access, and the Audio and Video Signal Cable 40 that identification accesses is to control the input of audio signal and the output of audio-video signal.
The filming apparatus of tool audio-video signal of the present utility model input and output is by audio-video signal input/output control circuit module 20, detect and whether have signal connecting line access, and the Audio and Video Signal Cable 40 that identification accesses is to control inputing or outputing of audio-video signal, be that filming apparatus of the present utility model only need arrange a connectivity port 30, in the time that Audio and Video Signal Cable 40 is inserted to this connectivity port 30, can realize with external audio & video equipment dock with the mutual acoustic vision signal of external audio & video equipment.
As shown in Figure 2, audio-video signal input/output control circuit module 20, comprise Audio and Video Signal Cable detecting unit 21, audio-video signal input and output detecting unit 22, audio-video signal input unit 23, audio-video signal output unit 24, Audio and Video Signal Cable 40 comprises audio signal input connecting line 41 and audio-video signal output connecting line 42.
Whether audio-video signal input/output control circuit module 20 has the type of the Audio and Video Signal Cable 40 that Audio and Video Signal Cable 40 inserts and insert by Audio and Video Signal Cable detecting unit 21 and audio-video signal input and output detecting unit 22 Intelligent Recognition, and is carried out the input of audio signal and carried out the output of audio-video signal by audio-video signal output unit 24 by audio signal input unit 23.
As shown in Figure 3, the connector of audio signal input connecting line 41 is provided with sound channel terminal 412 and earth terminal 411, the i.e. outer wheat line of audio signal input connecting line 41, it can directly be set to sound channel line terminals and ground wire terminal two lines in inside, also can reequip by AV line, its repacking mode can be: video terminal and L channel terminal short circuit ground connection.
As shown in Figure 4, the connector of audio-video signal output connecting line 42 is provided with L channel terminal 423, R channel line terminals 424, video line terminal 422 and earth terminal 421, the AV line that audio-video signal output connecting line is public domain.
As shown in Figure 5, connectivity port 30 is provided with L channel end 3, R channel end 4, video end 2, test side 5 and earth terminal 1, described connectivity port 30, in the time that Audio and Video Signal Cable 40 does not insert, test side 5 is connected with video end 2, in the time that Audio and Video Signal Cable 40 inserts, test side 5 disconnects mutually with video end 2.
Described Audio and Video Signal Cable detecting unit comprises power supply V3-3D, the 86 resistance R the 86 and the 94 resistance R 94 and is located at the processor of described shooting circuit module 10, described power supply is connected to the audio-video switch end AUDIO_SWITCH of described processor through described the 86 resistance R 86, described the 94 resistance R 94 one end are connected to the audio-video switch end AUDIO_SWITCH of described processor, the test side 5 that the other end connects described connectivity port 30.
When Audio and Video Signal Cable 40 is not inserted in connectivity port 30, the audio-video switch end AUDIO_SWITCH that takes circuit module 10 is low level, the audio frequency and video Enable Pin AUDIO-IN-DET that takes circuit module 10 is in the normal state as high level, this high level is invalid high level, and whole control circuit is not worked.Because test side 5 and the video end 2 of connectivity port 30 are communicated with, and the normality of video end VIDEO-IOR of taking circuit module 10 is low level, so audio-video switch end AUDIO_SWITCH is low level.
When the connector good contact of Audio and Video Signal Cable 40 and connectivity port 30 and Audio and Video Signal Cable 40 is inserted in connectivity port 30, the test side 5 of connectivity port 30 and video end 2 can disconnect, power supply V3-3D end draws audio-video switch end AUDIO_SWITCH into high level, and the processor of taking circuit module 10 can judge whether that by the low and high level state that detects audio-video switch end AUDIO_SWITCH Audio and Video Signal Cable 40 inserts connectivity port 30.
Described audio-video signal input and output detecting unit comprises power supply, the 101 resistance R 101, the 103 resistance R the 103 and the 47 capacitor C 47 and be located at the processor of described shooting circuit module 10, described power supply V3-3D is connected to the audio frequency and video Enable Pin AUDIO-IN-DET of described processor through described the 101 resistance R 101 and described the 103 resistance R 103, the L channel end 3(that the node of described the 101 resistance R 101 and described the 103 resistance R 103 is connected to described connectivity port 30 is understandable that, after this circuit is slightly made an amendment, this place can be: the node of described the 101 resistance R 101 and described the 103 resistance R 103 is connected to the R channel end 4 of described connectivity port 30), one end of described the 47 capacitor C 47 is connected to the audio frequency and video Enable Pin AUDIO-IN-DET of described processor, other end ground connection.
Processor has detected that Audio and Video Signal Cable 40 inserts behind connectivity port 30, needs to detect Audio and Video Signal Cable 40 types of inserting and then determines corresponding mode of operation.If what insert is audio signal input connecting line 41, L channel end 3 and video end 2 short circuits ground connection, now the L channel end AUDIO-L of processor is low level, audio frequency and video Enable Pin AUDIO-IN-DET is all low level, audio frequency and video Enable Pin AUDIO-IN-DET is consistent with the level of L channel end AUDIO-L, it is the low level that processor detects audio frequency and video Enable Pin AUDIO-IN-DET, what detect insertion is audio signal input connecting line 41, now control circuit can be inputted in audio frequency (Audio-IN) pattern, realize inputting through R channel AUDIO-R of audio process, the signal stream of the peripheral circuit under audio frequency input pattern is: power supply V3-3D → the 100 resistance R 100 → 102 resistance R 102 → the 88 resistance R 88, the 88 resistance R 88 provide bias voltage for the audio signal of input.
If what insert is audio-video signal output connecting line 42, hold at external control voltage V3-3D under the voltage applying, audio frequency and video Enable Pin AUDIO-IN-DET is high level, and in effective high level (in the situation that audio-video switch end AUDIO_SWITCH is high level, the high level of audio frequency and video Enable Pin AUDIO-IN-DET is just effective), processor can detect audio-video switch end AUDIO_SWITCH, audio frequency and video Enable Pin AUDIO-IN-DET is high level, what detect insertion is audio-video signal output connecting line 42, now control circuit is in audio frequency and video output mode (AV-OUT), realize audio frequency and video output.The signal stream of the peripheral circuit under audio frequency and video output mode is: the first via, and power supply V3-3D → the 101 resistance R 101 → the 89 resistance R 89, the 89 resistance R 89 provide bias voltage for audio frequency L channel (AUDIO-L) signal of output; The second tunnel, power supply V3-3D → the 100 resistance R 100 → the 102 resistance R 102 → the 88 resistance R 88, the 88 resistance R 88 provide bias voltage for audio frequency R channel (AUDIO-R) signal of output.
Processor judges that by the level state that detects audio-video switch end AUDIO_SWITCH whether audio frequency and video Enable Pin AUDIO-IN-DET is in effective mode of operation, can prevent user misoperation, be that audio-video switch end AUDIO_SWITCH is while being high level state, audio frequency and video Enable Pin AUDIO-IN-DET is in normal mode of operation, when audio-video switch end AUDIO_SWITCH is low level, whole control circuit exits audio frequency input (Audio-IN), audio frequency and video output (AV-OUT) pattern.
The operating voltage of circuit is directly powered by power supply independently, also can power by processor (MCU).
Audio-video signal input/output control circuit, also comprise the bias unit for audio signal being provided to a bias voltage, for the impedance matching unit that vision signal is carried out to impedance matching, the 89 resistance R the 89 and the 88 resistance R 88 forms bias unit provides gain to audio frequency R channel (AUDIO-R) signal and audio frequency L channel (AUDIO-L) signal, the 90 resistance resistance R 90 forms impedance matching unit and carries out impedance matching to vision signal, in control circuit, be provided with the 47 capacitor C 47, the 48 capacitor C 48, the 35 capacitor C 35, the 84 capacitor C 84 is as filter capacitor, put model and position for electric capacity, rationally all can.
The utility model is not limited to above execution mode, under the disclosed technology contents of above-mentioned execution mode, can also carry out various variations.Every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do, or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a filming apparatus for tool audio-video signal input and output, comprises shooting circuit module, it is characterized in that, also comprises:
A connectivity port, for accessing Audio and Video Signal Cable with input audio signal and output sound vision signal;
Audio-video signal input/output control circuit module, be connected between described shooting circuit module and described connectivity port, for detection of whether having signal connecting line access, and the Audio and Video Signal Cable that identification accesses is to control the input of audio signal and the output of audio-video signal.
2. the filming apparatus of tool audio-video signal according to claim 1 input and output, described connectivity port is provided with L channel end, R channel end, video end, test side and earth terminal.
3. the filming apparatus of tool audio-video signal according to claim 2 input and output, it is characterized in that, described connectivity port is the connectivity port that test side is connected with video end in the time that Audio and Video Signal Cable does not insert, test side and video end disconnect mutually in the time that Audio and Video Signal Cable inserts.
4. according to the filming apparatus of the tool audio-video signal input and output described in claims 1 to 3 any one, it is characterized in that, described Audio and Video Signal Cable comprises audio signal input connecting line and audio-video signal output connecting line.
5. the filming apparatus of audio frequency and video input and output according to claim 4, it is characterized in that, described audio signal input connecting line is provided with the outer wheat line connector for being connected with described connectivity port, and the outer wheat line connector of described audio signal input connecting line is provided with sound channel terminal and earth terminal; Access the state of described connectivity port at described audio signal input connecting line, the sound channel terminal on described outer wheat line connector is connected with R channel end or the L channel end of described connectivity port, earth terminal on described outer wheat line connector is connected with the earth terminal of described connectivity port.
6. the filming apparatus of tool audio-video signal according to claim 5 input and output, it is characterized in that, described audio-video signal output connecting line is provided with the AV line connector for being connected with described connectivity port, and the AV line connector of described audio-video signal output connecting line is provided with L channel terminal, R channel line terminals, video line terminal and earth terminal; Access the state of described connectivity port at described audio-video signal output connecting line, the L channel terminal on described outer wheat line connector is connected with the L channel end of described connectivity port, R channel line terminals on described outer wheat line connector is connected with the R channel end of described connectivity port, video line terminal on described outer wheat line connector is connected with the video line end of described connectivity port, earth terminal on described outer wheat line connector is connected with the earth terminal of described connectivity port.
7. the filming apparatus of audio frequency and video input and output according to claim 4, is characterized in that, described audio-video signal input/output control circuit module, comprising:
Whether Audio and Video Signal Cable detecting unit, for detection of having Audio and Video Signal Cable to insert connectivity port, insert as detected without connecting line, is defined as normal mode of operation; There is Audio and Video Signal Cable access as detected, be defined as signal transfer mode;
Audio-video signal input and output detecting unit, under signal transfer mode, automatically detecting the Audio and Video Signal Cable accessing is audio signal input connecting line or audio-video signal output connecting line;
Audio signal input unit, for the audio signal input connecting line recognizing according to audio-video signal input and output detecting unit, input audio signal;
Audio-video signal output unit, for the audio-video signal output connecting line recognizing according to audio-video signal input and output detecting unit, output sound vision signal.
8. the filming apparatus of tool audio-video signal according to claim 7 input and output, it is characterized in that, described Audio and Video Signal Cable detecting unit comprises processor, power supply, the 86 resistance and the 94 resistance of being located at described shooting circuit module, described power supply is connected to the audio-video switch end of described processor through described the 86 resistance, described the 94 resistance one end is connected to the audio-video switch end of described processor, the test side that the other end connects described connectivity port.
9. the filming apparatus of tool audio-video signal according to claim 8 input and output, it is characterized in that, described audio-video signal input and output detecting unit comprises the processor of being located at described shooting circuit module, power supply, the 101 resistance, the 103 resistance and the 47 electric capacity, described power supply is connected to the audio frequency and video Enable Pin of described processor through described the 101 resistance and described the 103 resistance, the node of described the 101 resistance and described the 103 resistance is connected to L channel end or the R channel end of described connectivity port, one end of described the 47 electric capacity is connected to the audio frequency and video Enable Pin of described processor, other end ground connection.
10. the filming apparatus of tool audio-video signal according to claim 7 input and output, is characterized in that, described audio-video signal input/output control circuit module, also comprises:
Bias unit, for providing a bias voltage to audio signal;
Impedance matching unit, for carrying out impedance matching to vision signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320729743.3U CN203708324U (en) | 2013-11-18 | 2013-11-18 | Shooting device with audio and video inputs and outputs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320729743.3U CN203708324U (en) | 2013-11-18 | 2013-11-18 | Shooting device with audio and video inputs and outputs |
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| Publication Number | Publication Date |
|---|---|
| CN203708324U true CN203708324U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320729743.3U Expired - Lifetime CN203708324U (en) | 2013-11-18 | 2013-11-18 | Shooting device with audio and video inputs and outputs |
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| CN (1) | CN203708324U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249092A (en) * | 2016-07-15 | 2016-12-21 | 深圳市骏达光电股份有限公司 | Touch screen automatic test approach and system |
-
2013
- 2013-11-18 CN CN201320729743.3U patent/CN203708324U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249092A (en) * | 2016-07-15 | 2016-12-21 | 深圳市骏达光电股份有限公司 | Touch screen automatic test approach and system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191213 Address after: Room 812, enterprise service center, No. 17, section 3, west section of Changjiang North Road, Lingang Economic Development Zone, Yibin City, Sichuan Province Patentee after: Sichuan Yidian Aviation Technology Co.,Ltd. Address before: 518108 Guangdong city of Shenzhen province Nanshan District Xili Sunshine Industrial Zone Electric Science and Technology Park Patentee before: SHENZHEN AEE TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |