CN101616275A - Image capture unit - Google Patents
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- CN101616275A CN101616275A CN200810127556A CN200810127556A CN101616275A CN 101616275 A CN101616275 A CN 101616275A CN 200810127556 A CN200810127556 A CN 200810127556A CN 200810127556 A CN200810127556 A CN 200810127556A CN 101616275 A CN101616275 A CN 101616275A
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Abstract
The present invention is relevant a kind of image capture unit, and its image sensing unit is in order to sensing one image and be converted to an analog image signal; The analog/digital conversion unit of image capture unit is a digital image signal with the analog image conversion of signals; The digital signal processing unit of image capture unit is optimized processing to digital image signal and optimizes signal of video signal to produce one; The control unit of image capture unit is according to external command signal control image sensing unit, analog/digital conversion unit and a digital signal processing unit; The transmitted in both directions interface unit of image capture unit is to be selected from the group that is made up of low pin count interface, tandem peripheral interface and 80/68 parallel interface, and can be subjected to control signal control and will optimize signal of video signal and export the outside to, transmitted in both directions interface unit also can be with the command signal Input Control Element.The present invention can cooperate the different size external device (ED) to operate, and can improve with external device (ED) to be electrically connected flexibility, and it is incompatible and can't transmit the information possibility to reduce both sides' interface.
Description
Technical field
The present invention relates to a kind of image output device, particularly relate to a kind of fechtable image and be converted to the image capture unit that digital signal is exported.
Background technology
See also shown in Figure 1, it is a system block diagrams, illustrate existing in the past complementary matal-oxide semiconductor (Complementary Metal-Oxide Semiconductor, hereinafter to be referred as CMOS) the parallel interface of a sensor and an employed Consultative Committee on International Radio (CCIR) (Consultative Committee ofInternational Radio, C IR).Existing CMOS sensor 9, comprise a CMOS array 91, an analog/digital conversion unit (is the analog/digital conversion unit, this paper all is called the analog/digital conversion unit) the parallel interface 94 of 92, one digital signal processing unit (be digital signal processing unit, this paper all is called digital signal processing unit), 93, one CCIR, a temporary storage location 95 and one 2 line sequence interfaces 96 (2-wire sequence interface).
This CMOS array 91 can get off the image capture that photographs and be converted into simulation (be analogy, this paper all is called a simulation) signal of video signal; Then, (signal is a signal with this analog image signal, this paper all is called signal) be sent to this analog/digital conversion unit 92, the analog image signal can be converted into a numeral (be numerical digit, this paper all is called numeral) signal of video signal and be delivered to this digital signal processing unit 93; The operation that this digital signal processing unit 93 generally carries out in CMOS sensor 9 inside, also can be considered signal of video signal and handle (Image Signal Processing, be called for short ISP), digital image signal can be done the processing of image optimization, for example: noise removes (de-noise), (auto-exposure is adjusted in automatic exposure, be called for short AE) and Automatic white balance adjustment (Auto-white-balance, be called for short AWB) etc., digital image signal is through behind the image optimization, become one and optimize signal of video signal, transfer to CCIR interface 94 at last again and export an external device (ED) 97 (may be Storage Media or display) to.
Two wires sequence interface 96 can hold the user command signal of 98 inputs to input to this temporary storage location 95, by this temporary storage location 95 the command signal branch of receiving is delivered to the corresponding parallel interface 94 of CMOS array 91, analog/digital conversion unit 92, digital signal processing unit 93 or CCIR again, so as to controlling their start.
The general parallel interface 94 of CCIR that uses in the past, have one and transmit the pin of vertical synchronizing signal Vsync and the pin of a transmission horizontal-drive signal Hsync signal, this binary signal can be demarcated the address (being address) of each pigment (pixel) of the optimization signal of video signal that transfers to external device (ED) 97, because each pigment all is instructed to its position, so the parallel interface of CCIR can constantly be sent optimizing signal of video signal.
But, owing to only use the parallel interface 94 of a CCIR to do the transmission of image information in the past, so more do not have elasticity in the use.
This shows that above-mentioned existing image capture unit obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.For solving the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of image capture unit of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because the defective that above-mentioned existing image capture unit exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of image capture unit of new structure, can improve general existing image capture unit, make it have more practicality.Through constantly research, design, and, create the present invention who has practical value finally through after studying sample and improvement repeatedly.
Summary of the invention
The objective of the invention is to, overcome the defective that existing image capture unit exists, and provide a kind of image capture unit of new structure, technical problem to be solved is to make it that a kind of pin that transmits vertical synchronizing signal Vsync and pin that transmits horizontal-drive signal Hsync signal of can saving is provided, to reduce the image capture unit of the complexity on the circuit, be very suitable for practicality.
Another object of the present invention is to, a kind of image capture unit of new structure is provided, technical problem to be solved is to make it can cooperate the different size external device (ED) to operate, and can improve with external device (ED) to be electrically connected flexibility, and it is incompatible and can't transmit the information possibility to reduce both sides' interface.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of image capture unit that the present invention proposes, it comprises: an image sensing unit, in order to sensing one image and be converted to an analog image signal; One analog/digital conversion unit is a digital image signal with this analog image conversion of signals; One digital signal processing unit is optimized processing to this digital image signal and optimizes signal of video signal to produce one; And a control unit, control this image sensing unit, analog/digital conversion unit and digital signal processing unit according to an external command signal; Wherein this image capture unit also comprises: a two-way tunnel interface module, be to be selected from the group that forms by low pin count interface, tandem peripheral interface and 80/68 parallel interface, and controlled by a control signal, exported the outside to and should optimize signal of video signal, this command signal also can be imported this control unit in this transmitted in both directions interface unit.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid image capture unit, wherein said transmitted in both directions interface unit is electrically connected with an external device (ED), and receives the control signal that this external device (ED) produces and should optimize signal of video signal and export this external device (ED) to.
Aforesaid image capture unit, wherein this image capture unit also comprises an one-way transmission interface unit, and this one-way transmission interface unit should be optimized signal of video signal sustainably and export the outside to, and this command signal can be inputed to this control unit.
Aforesaid image capture unit, wherein said one-way transmission interface unit comprise parallel interface of a Consultative Committee on International Radio (CCIR) (CCIR) and one 2 line sequence interfaces; The parallel interface of this Consultative Committee on International Radio (CCIR) (CCIR) should be optimized signal of video signal sustainably and export the outside to; This 2 line sequence interface can input to control unit with this command signal.
Aforesaid image capture unit, wherein said image sensing unit are a complementary matal-oxide semiconductor array or a sensitization coupling element array.
Aforesaid image capture unit, it also comprises a multiplex (MUX) unit, can select to optimize signal of video signal and export this external device (ED) to via the arbitrary interface in this transmitted in both directions interface unit.
Aforesaid image capture unit, wherein this image capture unit also comprises a multiplex (MUX) unit, can select to optimize signal of video signal and export this external device (ED) to via the parallel interface of the arbitrary interface in this transmitted in both directions interface unit or this Consultative Committee on International Radio (CCIR) (CCIR).
Aforesaid image capture unit, wherein said transmitted in both directions interface unit is one 80/68 parallel interfaces, this 80/68 parallel interface has the pin of an output waiting signal and the pin of an output interrupt signal.
The present invention compared with prior art has tangible advantage and beneficial effect.As known from the above, for reaching the above-mentioned purpose that a kind of with different in the past image capture unit is provided, according to image capture unit of the present invention, comprise an image sensing unit, an analog/digital conversion unit, a digital signal processing unit, a control unit and a two-way tunnel interface module; This image sensing unit is in order to sensing one image and be converted to an analog image signal; This analog/digital conversion unit is a digital image signal with this analog image conversion of signals; This digital signal processing unit is optimized processing to this digital image signal and optimizes signal of video signal to produce one; This control unit is controlled this image sensing unit, analog/digital conversion unit and digital signal processing unit according to an external command signal; This transmitted in both directions interface unit, be to be selected from the group that forms by low pin count interface, tandem peripheral interface and 80/68 parallel interface, and controlled by a control signal, exported the outside to and should optimize signal of video signal, this command signal also can be imported this control unit in this transmitted in both directions interface unit.
For above-mentioned another purpose that provides the external device (ED) that can cooperate various different sizes to operate is provided, image capture unit of the present invention also comprises an one-way transmission interface unit, and this one-way transmission interface unit comprises parallel interface of a CCIR and one 2 line sequence interfaces (2-wire sequence interface); The parallel interface of this CCIR should be optimized signal of video signal sustainably and export the outside to; This 2 line sequence interface can input to control unit with this command signal.
By technique scheme, image capture unit of the present invention has following advantage and beneficial effect at least: transmitted in both directions interface of the present invention unit is compared to the CCIR interface of existing in the past one-way transmission interface unit, lacked the pin that transmits vertical synchronizing signal Vsync and horizontal-drive signal Hsync signal, and increased the pin that receives from the control signal of external device (ED), therefore, when external device (ED) was sent control signal, transmitted in both directions interface unit just can begin to transmit the optimization signal of video signal; In addition, if one-way transmission interface unit and transmitted in both directions interface unit are arranged simultaneously can be exported for the image information, then the flexibility that image capture unit is electrically connected with external device (ED) can be improved, the possibility that to transmit information because both sides' interface is incompatible can be reduced.
In sum, the invention provides a kind of pin that transmits vertical synchronizing signal Vsync and pin that transmits horizontal-drive signal Hsync signal of can saving, can reduce the image capture unit of the complexity on the circuit.The present invention can also cooperate the different size external device (ED) to operate, and can improve with external device (ED) to be electrically connected flexibility, and it is incompatible and can't transmit the information possibility to reduce both sides' interface, is very suitable for practicality.The present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and more existing image capture unit has the outstanding effect of enhancement, thereby being suitable for practicality more, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is a system block diagrams, illustrates in the past CMOS sensor and the parallel interface of an employed CCIR.
Fig. 2 is a system block diagrams, illustrates first preferred embodiment and the employed one low pin count interface of image capture unit of the present invention.
Fig. 3 is a system block diagrams, illustrates second preferred embodiment and the employed multiple interface of image capture unit of the present invention.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of image capture unit, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can clearly present in the following detailed description that cooperates with reference to graphic preferred embodiment.For convenience of description, in following embodiment, similar elements is to represent with identical numbering.
Seeing also shown in Figure 2ly, is a system block diagrams, has illustrated first preferred embodiment and the employed one low pin count interface of image capture unit of the present invention.Image capture unit 1 of the present invention is to be installed in digital camera (figure does not show) or digital camera (figure does not show) etc. to utilize various electronic components to come in the machine of recording image, and with an external device (ED) 81 (shown in imaginary line among the figure, can be Storage Media or display) be electrically connected, the image capture unit of the present invention's first preferred embodiment, the transmitted in both directions interface unit 15 that comprises an image sensing unit 11, an analog/digital conversion unit 12, a digital signal processing unit 13, a control unit 14 and be electrically connected with this external device (ED) 81.
Above-mentioned image sensing unit 11, the image of sensing one object, and be that an analog image signal is delivered to analog/digital conversion unit 12 (A/D converter) again with this video conversion.In the present embodiment, image sensing unit 11 is CMOS arrays, but also can be the semiconductor element that sensitization coupling element (ChargeCoupled Device is called for short CCD) waits other fechtable images, does not exceed with present embodiment.
Above-mentioned analog/digital conversion unit 12 then is a digital image signal with this analog image conversion of signals and be sent to this digital signal processing unit 13 (Digital signal processor is called for short DSP);
Above-mentioned digital signal processing unit 13 is optimized processing to digital image signal; The operation that digital signal processing unit 13 is carried out in the present embodiment, also can be considered signal of video signal and handle (ImageSignal Processing, be called for short ISP), this type of signal of video signal is handled to be had such as: noise removes (de-noise), automatic exposure adjustment (auto-exposure, be called for short AE) and Automatic white balance adjustment (Auto-white-balance is called for short AWB) or the like; Digital image signal becomes the optimization signal of video signal, and transfers to this transmitted in both directions interface unit 15 through behind the image optimization.
Above-mentioned transmitted in both directions interface unit 15, in the present embodiment, transmitted in both directions interface unit 15 is low pin count (LPC) interface, but also can be a tandem peripheral interface (SPI) or one 80/68 parallel interfaces, does not exceed with present embodiment.The general parallel interface of CCIR that uses in the past, have one and transmit the pin of vertical synchronizing signal Vsync and the pin of a transmission horizontal-drive signal Hsync, and three kinds of examples that above-mentioned transmitted in both directions interface unit 15 is lifted (are the LPC interface, the parallel interface of tandem peripheral interface) with 80/68, all be to be subjected to just meeting start of external device (ED) 81 controls, that is transmitted in both directions interface unit 15 is to have the pin that receives Chip Select signal, and this Chip Select signal is the control signal of being supplied with by external device (ED) 81, therefore, when external device (ED) 81 is sent Chip Select signal, transmitted in both directions interface unit 15 just can begin to transmit the optimization signal of video signal, and each pigment of optimizing signal of video signal is to begin to pass in regular turn from default first position of each picture, no longer demarcate the position of each pigment, also therefore, above-mentioned transmitted in both directions interface unit 15 can save pin that transmits vertical synchronizing signal Vsync and the pin that transmits horizontal-drive signal Hsync signal, to reduce the complexity on the circuit, the employed low pin count interface of present embodiment, owing to be, reduce pin count purpose purpose so more can reach with all signal encodings and only with 4 pin transmission signals.
What deserves to be mentioned is, if transmitted in both directions interface unit 15 adopts 80/68 parallel interface, in the present embodiment because the needs on the application technology, must a newly-increased output wait for pin of (wait) signal and the pin that (interrupt) signal is interrupted in an output, this should be this area is familiar with the technical staff of this skill and knows, so do not repeat them here.
Above-mentioned control unit 14, be to hold 82 these transmitted in both directions of process to connect the command signal that face unit 15 is imported according to the user, control this image sensing unit 11, analog/digital conversion unit 12 and digital signal processing unit 13, so as to controlling their start, and control unit 14 can also read the actuator state of aforementioned each unit, is returned to the user then and holds 82.
Seeing also shown in Figure 3ly, is a system block diagrams, illustrates second preferred embodiment and the employed multiple interface of image capture unit of the present invention.The image capture unit 1 of the present invention's second preferred embodiment, compared to first preferred embodiment, second preferred embodiment has also comprised an one-way transmission interface unit 16 and a multiplex (MUX) unit 17 (multiplexer, be called for short MUX), and the transmitted in both directions interface unit 15 of second preferred embodiment has also comprised a tandem peripheral interface 152 and one 80/68 parallel interfaces 153 except low pin count interface 151.
Above-mentioned one-way transmission interface unit 16, comprised in the past and can export the parallel interface 161 of a CCIR of external device (ED) 81 to, and the user can have been held 82 command signals of importing to input to the one 2 line sequence interfaces 162 (2-wire sequence interface) of this control unit 14 optimizing signal of video signal.What deserves to be mentioned is that 2 line sequence interfaces 162 are the interfaces that possess the transmitted in both directions function, but in the present embodiment, it mainly is to be responsible for command signal is inputed to this control unit 14, so 2 line sequence interfaces 162 are classified as one-way transmission.
In the present embodiment, digital signal processing unit 13 will be optimized signal of video signal and transfer to this multiplex (MUX) unit 17 earlier, again by multiplex (MUX) unit 17, selection will be optimized signal of video signal and be sent to external device (ED) 81 by the parallel interface 161 of CCIR, tandem peripheral interface 152,80/68 parallel interface 153 or low pin count interface 151, that is to say, present embodiment can be selected different transmission interfaces will optimize signal of video signal and be sent to external device (ED) 81 according to the difference of the specification of external device (ED) 81.The user holds and same also can select specific interface that command signal is inputed to this control unit 14 by in 2 line sequence interfaces 162, tandem peripheral interface 152,80/68 parallel interface 153 or the low pin count interface 151.
In sum, the transmitted in both directions interface unit 15 that above-mentioned first embodiment of the present invention uses has reduced the pin that transmits vertical synchronizing signal Vsync and horizontal-drive signal Hsync compared to the CCIR interface of existing one-way transmission interface unit 16 in the past, and increased the pin that receives from the control signal of external device (ED) 81, therefore, when external device (ED) 81 is sent control signal, transmitted in both directions interface unit 15 just can begin to transmit the optimization signal of video signal, in other words, transmitted in both directions interface unit 15 is controlled by external device (ED) 81; In addition, above-mentioned second embodiment uses the one-way transmission interface unit 16 and the various transmission interfaces of transmitted in both directions interface unit 15 to export for the image information simultaneously, then can improve the flexibility that image capture unit 1 is electrically connected with external device (ED) 81, can reduce the possibility that to transmit information because both sides' interface is incompatible.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when utilizing above-mentioned announcement technology contents to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (8)
1, a kind of image capture unit is characterized in that it comprises:
One image sensing unit is in order to sensing one image and be converted to an analog image signal;
One analog/digital conversion unit is a digital image signal with this analog image conversion of signals;
One digital signal processing unit is optimized processing to this digital image signal and optimizes signal of video signal to produce one; And
One control unit is controlled this image sensing unit, analog/digital conversion unit and digital signal processing unit according to an external command signal;
It is characterized in that this image capture unit also comprises:
One two-way tunnel interface module, be to be selected from the group that forms by low pin count interface, tandem peripheral interface and 80/68 parallel interface, and controlled by a control signal, exported the outside to and should optimize signal of video signal, this command signal also can be imported this control unit in this transmitted in both directions interface unit.
2, image capture unit as claimed in claim 1 is characterized in that wherein said transmitted in both directions interface unit is electrically connected with an external device (ED), and receives the control signal that this external device (ED) produces and should optimize signal of video signal and export this external device (ED) to.
3, image capture unit as claimed in claim 2, it is characterized in that this image capture unit also comprises an one-way transmission interface unit, this one-way transmission interface unit should be optimized signal of video signal sustainably and export the outside to, and this command signal can be inputed to this control unit.
4, image capture unit as claimed in claim 3 is characterized in that wherein said one-way transmission interface unit comprises parallel interface of a Consultative Committee on International Radio (CCIR) and one 2 line sequence interfaces; The parallel interface of this Consultative Committee on International Radio (CCIR) should be optimized signal of video signal sustainably and export the outside to; This 2 line sequence interface can input to control unit with this command signal.
5, image capture unit as claimed in claim 4 is characterized in that wherein said image sensing unit is a complementary matal-oxide semiconductor array or a sensitization coupling element array.
6, image capture unit as claimed in claim 2 is characterized in that it also comprises a multiplex (MUX) unit, can select to optimize signal of video signal and export this external device (ED) to via the arbitrary interface in this transmitted in both directions interface unit.
7, image capture unit as claimed in claim 4, it is characterized in that this image capture unit also comprises a multiplex (MUX) unit, can select to optimize signal of video signal and export this external device (ED) to via the parallel interface of arbitrary interface or this Consultative Committee on International Radio (CCIR) in this transmitted in both directions interface unit.
8, image capture unit as claimed in claim 1 is characterized in that wherein said transmitted in both directions interface unit is one 80/68 parallel interfaces, and this 80/68 parallel interface has the pin of an output waiting signal and the pin of an output interrupt signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810127556A CN101616275A (en) | 2008-06-27 | 2008-06-27 | Image capture unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810127556A CN101616275A (en) | 2008-06-27 | 2008-06-27 | Image capture unit |
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| CN101616275A true CN101616275A (en) | 2009-12-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685360A (en) * | 2011-03-10 | 2012-09-19 | 晶相光电股份有限公司 | Integrated contact image sensing module and image scanning system |
| CN102999087A (en) * | 2011-09-08 | 2013-03-27 | 鸿富锦精密工业（深圳）有限公司 | Display device |
-
2008
- 2008-06-27 CN CN200810127556A patent/CN101616275A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685360A (en) * | 2011-03-10 | 2012-09-19 | 晶相光电股份有限公司 | Integrated contact image sensing module and image scanning system |
| CN102999087A (en) * | 2011-09-08 | 2013-03-27 | 鸿富锦精密工业（深圳）有限公司 | Display device |
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Open date: 20091230 |