CN1280742C - Image processor for mobile communication terminal having pick-up head - Google Patents
Image processor for mobile communication terminal having pick-up head Download PDFInfo
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- CN1280742C CN1280742C CN03119656.XA CN03119656A CN1280742C CN 1280742 C CN1280742 C CN 1280742C CN 03119656 A CN03119656 A CN 03119656A CN 1280742 C CN1280742 C CN 1280742C
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- 238000010295 mobile communication Methods 0.000 title abstract description 5
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
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Abstract
The present invention discloses an image processor for a mobile communication terminal having a camera head, which belongs to the field of an image processor. The present invention can cause a camera module to carry out mutual image data transmission with an LCD module without the need of a baseband module, lightens the burden of the baseband module, and eliminates delay between image display and actual picture display of the LCD module. The present invention comprises a host interface, a JPEG coding and decoding unit, an SIF/ISP unit, an image size management unit, a YUV-RGB converter, a system controller, an internal bus and an LCD control unit, wherein a host can directly control an LCD module by the LCD control unit; output signals of the system controller and the internal bus control the control unit; the LCD control unit receives image data converted by the YUV-RGB converter and sends the image data to the LCD module for display.
Description
Technical field
The present invention relates to a kind of image processor, particularly a kind of image processor that is used for having the communication terminal of camera.
Background technology
Along with the develop rapidly of digital image technology, various digital vedio recordings or Flame Image Process product have generally entered the lives of the people.Of a great variety as the image processor of digital image field core technology, function also strengthens day by day.Not only be useful on the image processor on the independent digital camera, also have and be applicable to the mobile communication terminal that has inserted camera such as the image processor on mobile phone or the individual palm PC, it not only can help mobile phone to realize the demonstration of image, more can carry out Image Acquisition and carry out multimedia communication by mobile phone, this compound mobile phone has improved the efficient of using, and also is very easy to the user.But, there is such shortcoming in the existing image processor that is used for having the mobile phone of camera: referring to Fig. 1, the mobile phone that has camera comprises functional modules such as photographing module 20 ', baseband module 30 ' and LCD module 10 ', and photographing module 20 ' wherein comprises camera lens, optical sensor and image processor.The running of baseband module 30 ' control photographing module 20 ' and LCD module 10 '.No matter be the video flowing of browsing photographing module 20 ' input by LCD module 10 ', still photographing module 20 ' is caught behind the image image by LCD module 10 ' display capture all needs to pass through baseband module 30 ' and transmits this image to LCD module 10 ' by photographing module 20 ' again.And the realization of each process also all needs master controller in the baseband module 30 ' to control and coordinate, and the burden that this has increased baseband module 30 ' has undoubtedly caused the load of baseband module excessive; And because the image that photographing module 20 ' is caught need just be sent to LCD module 10 ' through behind the baseband module 30 ', so the delay of several two field pictures is arranged between LCD module 10 ' last image that shows and real screen.The existence of these defectives makes the mobile phone that has camera can not reach gratifying result of use in practical operation, and therefore being badly in need of occurring a kind of photographing module 20 ' that can make does not need just can carry out the image processor that view data is transmitted mutually with LCD module 10 ' through baseband module 30 '.
Summary of the invention
The purpose of this invention is to provide a kind of image processor that is used for having the communication terminal of camera.It can make photographing module not need just can directly send view data to the LCD module through baseband module, has alleviated the burden of baseband module, has eliminated the delay between LCD module display image and the real screen.
In order to realize the foregoing invention purpose, technical scheme of the present invention realizes as follows:
Be used for having the image processor of the communication terminal of camera, comprise the host interface that links to each other with main frame, JPEG coding and decoding unit with the mutual Data transmission of host interface, reception is from the SIF/ISP unit of the view data of CCD/CMOS imageing sensor transmission, the view data that the SIF/ISP unit is transmitted handle and with the image size administrative unit of the mutual Data transmission in JPEG coding and decoding unit, data after the processing of image size administrative unit are carried out the YUV-RGB converter that YUV-RGB changes, system controller and internal bus, described host interface is controlled each unit by system controller and internal bus.Its design feature is, also comprise the LCD control module that can make main frame directly control the LCD module, the output signal of system controller and internal bus is used to control described LCD control module, and described LCD control module receives through the view data of YUV-RGB converter conversion and sends it to the LCD module and shows.
Above-mentioned LCD control module comprises frame buffer, LCD VIEW unit and LCD driving interface unit, described frame buffer is handled the image data transmission of YUV-RGB converter conversion to the LCDVIEW unit, the image data transmission after the LCD VIEW cell processing is to LCD driving interface unit.
Above-mentioned LCD VIEW unit comprises Gamma corrector and color depth processor, carries out color depth by the color depth processor again after view data is handled through the Gamma corrector and handles.
Image processor of the present invention also comprises the 2-D image engine that storing image data in the described frame buffer is carried out the two dimensional image operation.
Above-mentioned JPEG coding and decoding unit comprises JPEG line buffer, JPEG coding decoder and JPEG impact damper.Above-mentioned image size administrative unit comprises image size boundary of administration impact damper and image size manager.
The present invention is owing to adopted above-mentioned structure, when described image processor is used to have on the mobile communication terminal of inserted camera, photographing module is directly linked to each other with the LCD module, thereby make the delay phenomenon between display image and the real screen be able to good elimination, its optimal image of seeing that the user can at random catch; Structural design provided by the present invention makes baseband module reduce unnecessary load, has improved its utilization factor; In addition, mobile communication terminal when conversing substantially, finish target image catch with transfer operation and be independent of each other also be utilize image processor provided by the present invention can realize.
Description of drawings
Fig. 1 is to use the structured flowchart of the mobile phone of prior art image processor;
Fig. 2 is to use the structured flowchart of mobile phone of the present invention;
Fig. 3 is a structured flowchart of the present invention.
Fig. 4 is the process flow diagram of preview mode in the implementation method of the present invention;
Fig. 5 is the process flow diagram of still image acquisition mode in the implementation method of the present invention;
Fig. 6 is the process flow diagram of catching the back display mode in the implementation method of the present invention;
Fig. 7 is the process flow diagram of video capture pattern in the implementation method of the present invention.
Embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Referring to Fig. 2, the mobile phone that has camera comprises baseband module 30, LCD module 10, photographing module 20, RF module 40, power module 50, FLASH storer 60, keyboard portion 70, Sim card 80 and audio-frequency module 90.Photographing module 20 comprises optical sensor 22, camera lens 21 and image processor 23, optical sensor 22 will be converted to electrical picture signal from the light image that camera lens 21 is caught, image processor 23 electrical picture signals from optical sensor 22 inputs are converted to digital signal and will change after digital signal pass to LCD module 10 or baseband module 30 after further handling.Baseband module 30 is cores of whole mobile phone, and it links to each other with SIM card (Subscriber Identity Module Subscriber Identity Module), memory module 60, keyboard portion 70, audio-frequency module 90 and power module 50 etc.Memory module 60 is used for storing data that mobile device need store and the view data that captures from photographing module 20.Keyboard portion 70 is man-machine interface interfaces of user and this device, and the user is used for finishing the various operations that need.The voice signal of the coding that audio-frequency module 90 demodulation receive from RF module 40 and the voice signal that demodulation is provided be to loudspeaker, and coding from the electroacoustic signal of microphone and voice signal through coding is provided to RF module 40.The LCD module is used to show the basic operation state of camera phone, and the image that camera is caught or the image file in the phone storage device show.RF (radio frequency) module 40 comprises the RF processor mainly input rf signal handled, be the RF conversion of signals IF (intermediate frequency) processor of IF signal and be the IF conversion of signals baseband processor of baseband module 30 accessible base-band bit-streams.In addition, although not shown, RF module 40 is divided into receiver and transmitter.Receiver in the RF module 40 amplifies the RF signal of input and suppresses noise, and through the IF processor amplifying signal is converted to digital signal.The digital signal of conversion is provided for baseband module 30.Transmitter in the RF module 40 is amplifying according to the signal after the band modulation of providing from baseband module 30, and launches this signal through the antenna part of not describing.
Referring to Fig. 3, be used for having the image processor of the communication terminal of camera, comprise the host interface 1 that links to each other with main frame, JPEG coding and decoding unit 2 with host interface 1 mutual Data transmission, reception is from the SIF/ISP unit 8 of the YUV view data of CCD/CMOS imageing sensor transmission, the view data that SIF/ISP unit 8 is transmitted handle and with the big or small administrative unit 3 of the image of JPEG coding and decoding unit 2 mutual Data transmission, data after 3 processing of image size administrative unit are carried out the YUV-RGB converter 4 that YUV-RGB changes, system controller 9 and internal bus 10, described host interface 1 is by system controller 9 and internal bus 10 each unit of control.Also comprise the LCD control module 14 that can make main frame directly control the LCD module, the output signal of system controller 9 and internal bus 10 is used to control described LCD control module 14, and described LCD control module 14 receives through the view data of YUV-RGB converter 4 conversions and sends it to the LCD module and shows.
Above-mentioned LCD control module 14 comprises frame buffer 5, LCD VIEW unit 6 and LCD driving interface unit 7, described frame buffer 5 is handled the image data transmission of YUV-RGB converter 4 conversions to LCD VIEW unit 6, the image data transmission after LCD VIEW unit 6 is handled is to LCD driving interface unit 7.Above-mentioned LCD VIEW unit 6 comprises Gamma corrector 12 and color depth processor 13, carries out color depth by color depth processor 13 again after view data is handled through Gamma corrector 12 and handles.Image processor of the present invention also comprises the 2-D image engine 11 that storing image data in the described frame buffer 5 is carried out the two dimensional image operation.Above-mentioned JPEG coding and decoding unit 2 comprises JPEG line buffer, JPEG coding decoder and JPEG impact damper.Above-mentioned image size administrative unit 3 comprises image size boundary of administration impact damper and image size manager.
Mode of operation of the present invention comprises preview mode, still image acquisition mode, catches back display mode and Video Capture pattern.
Referring to Fig. 4, the step of preview mode is in the said method: 1) the CCD/CMOS imageing sensor sends the YUV view data to the SIF/ISP unit; 2) the SIF/ISP unit is handled image data transmission to image size administrative unit; 3) view data after image size administrative unit is handled is carried out the YUV-RGB conversion by the YUV-RGB converter; 4) view data after the conversion deposits frame buffer in; 5) frame buffer carries out Gamma correction and color depth processing with image data transmission to LCD VIEW unit; 6) image data transmission after handling is to LCD driving interface unit, and shows through the LCD module.
The step 4) of preview mode can also comprise the image data transmission in the frame buffer to 2-D image engine is carried out sending it back frame buffer after the two dimensional image operation in the said method.
Referring to Fig. 5, the step of still image acquisition mode is in the said method: 1) the CCD/CMOS imageing sensor sends the YUV view data to the SIF/ISP unit; 2) the SIF/ISP unit is handled image data transmission to image size administrative unit; 3) encode in image data transmission to the JPEG coding and decoding unit after image size administrative unit is handled; 4) encoded image data sends to host interface.
Referring to Fig. 6, the step of catching the back display mode in the said method is: 1) host interface transmission YUV view data is decoded to JPEG coding and decoding unit; 2) decoded data send to image size administrative unit and handle and deposit in frame buffer; 3) frame buffer carries out Gamma correction and color depth processing with image data transmission to LCD VIEW unit; 4) image data transmission after handling is to LCD driving interface unit, and shows through the LCD module.
Catch the step 2 of back display mode in the said method) can also comprise the image data transmission in the frame buffer to 2-D image engine is carried out sending it back frame buffer after the two dimensional image operation.
Referring to Fig. 7, the step of Video Capture pattern is in the said method: 1) the CCD/CMOS imageing sensor sends the very little multiframe YUV view data of resolution to the SIF/ISP unit; 2) the SIF/ISP unit is handled image data transmission to image size administrative unit; 3) encode in image data transmission to the JPEG coding and decoding unit after image size administrative unit is handled; 4) the multiple image data behind the coding send to host interface.
Claims (2)
1. be used for having the image processor of the communication terminal of camera, comprise the host interface (1) that links to each other with main frame, JPEG coding and decoding unit (2) with the mutual Data transmission of host interface (1), reception is from the SIF/ISP unit (8) of the view data of CCD/CMOS imageing sensor transmission, the view data that SIF/ISP unit (8) are transmitted handle and with JPEG coding and decoding unit (2) the image size administrative unit (3) of Data transmission mutually, data after image size administrative unit (3) processing are carried out the YUV-RGB converter (4) that YUV-RGB changes, system controller (9) and internal bus (10), described host interface (1) is controlled each unit by system controller (9) and internal bus (10), it is characterized in that, also comprise the LCD control module (14) that can make main frame directly control the LCD module, the output signal of system controller (9) and internal bus (10) is used to control described LCD control module (14), and described LCD control module (14) receives through the view data of YUV-RGB converter (4) conversion and sends it to the LCD module and shows;
Described LCD control module (14) comprises frame buffer (5), LCD VIEW unit (6) and LCD driving interface unit (7), described frame buffer (5) is handled the image data transmission of YUV-RGB converter (4) conversion to LCD VIEW unit (6), the image data transmission after LCD VIEW unit (6) is handled is to LCD driving interface unit (7);
Described LCD VIEW unit (6) comprises Gamma corrector (12) and color depth processor (13), carries out color depth by color depth processor (13) again after view data is handled through Gamma corrector (12) and handles.
2. image processor as claimed in claim 1 is characterized in that, also comprises the 2-D image engine (11) that storing image data in the described frame buffer (5) is carried out the two dimensional image operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03119656.XA CN1280742C (en) | 2003-03-19 | 2003-03-19 | Image processor for mobile communication terminal having pick-up head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03119656.XA CN1280742C (en) | 2003-03-19 | 2003-03-19 | Image processor for mobile communication terminal having pick-up head |
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| CN1525759A CN1525759A (en) | 2004-09-01 |
| CN1280742C true CN1280742C (en) | 2006-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN03119656.XA Expired - Fee Related CN1280742C (en) | 2003-03-19 | 2003-03-19 | Image processor for mobile communication terminal having pick-up head |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317886C (en) * | 2004-12-24 | 2007-05-23 | 北京中星微电子有限公司 | Computer pick-up head for implementing specific effect processing of dynamic image and method thereof |
| CN100413359C (en) * | 2005-01-28 | 2008-08-20 | 北京握奇数据系统有限公司 | Mobile terminal and starting method thereof |
| US8207973B2 (en) | 2008-01-11 | 2012-06-26 | Mediatek Inc. | Systems and methods for control signal and data transmission between various types of electronic modules |
| CN101483768B (en) * | 2008-01-11 | 2012-04-25 | 联发科技股份有限公司 | Electronic apparatus |
| US7937520B2 (en) | 2008-01-11 | 2011-05-03 | Mediatek Inc. | General purpose interface controller of resoure limited system |
| US8194146B2 (en) | 2008-01-11 | 2012-06-05 | Mediatek Inc. | Apparatuses for capturing and storing real-time images |
| CN101252665B (en) * | 2008-03-06 | 2010-04-14 | 华为技术有限公司 | Interface device |
| CN103456279B (en) * | 2012-06-04 | 2017-08-25 | 希姆通信息技术（上海）有限公司 | Mobile terminal and its color display |
| CN108666736A (en) * | 2018-05-10 | 2018-10-16 | Oppo广东移动通信有限公司 | Electronic equipment |
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2003
- 2003-03-19 CN CN03119656.XA patent/CN1280742C/en not_active Expired - Fee Related
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