CN1964469A - Mobile terminal - Google Patents
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- CN1964469A CN1964469A CN 200510115622 CN200510115622A CN1964469A CN 1964469 A CN1964469 A CN 1964469A CN 200510115622 CN200510115622 CN 200510115622 CN 200510115622 A CN200510115622 A CN 200510115622A CN 1964469 A CN1964469 A CN 1964469A
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Abstract
The provided mobile terminal comprises: a baseband chip for visible telephone, a camera and speech device for visible telephone, a storage device and display device, the multimedia chip controlled by last chip to convert original data into relative image data to show on the display device, and the camera for taking picture connected with the multimedia chip by interface on the chip. This invention realizes multiple functions with low cost.
Description
Technical field
The present invention relates to a kind of portable terminal, particularly relate to a kind ofly can realize taking pictures, the portable terminal of shooting and video telephone function.
Background technology
In today that communication and electronic technology are maked rapid progress, this portable communicating tool of mobile phone has become the essential items of modern everyone life.Along with cell-phone function from strength to strength with personalization, nowadays be difficult to mobile phone is defined as simple communicating terminal merely, very general as the mobile phone of being with digital camera functionality.Along with the arrival in the third generation (3G) mobile communication epoch, the wireless transmission capability of mobile phone has obtained further reinforcement, and the function that MPEG4 and visual telephone etc. are new also is applied in the mobile phone thereupon; Following mobile phone is taken pictures having simultaneously, shooting, visual telephone three big multimedia functions.
The function of existing mobile phone is comparatively simple, and the transmission of speech communication and character message mainly is provided.Correspondingly, the baseband chip in the mobile phone is also comparatively simple, generally includes digital baseband (DBB), Analog Baseband (ABB), power management (PMU) three parts.
Along with the continuous enhancing of cell-phone function, audio-visual data processing amount, the mode that multimedia realizes is variation day by day also.Present stage, in mobile phone, realize taking pictures, the method for shooting, these three kinds of multimedia functions of visual telephone function can reduce following two kinds: adopt method that baseband chip handles and the method that adopts multimedia chip to handle.
In the method that adopts baseband chip to handle, can adopt baseband chip to come processes voice signals and multi-media signal simultaneously with powerful CPU processing capacity, also can adopt single baseband chip, utilize two separate processor wherein to come processes voice signals and multi-media signal respectively with dual core (as CPU and DSP).With Fig. 1 is example, camera, speech ciphering equipment, display device (for example LCD), memory device (for example flash memory) etc. are connected with baseband chip by corresponding interface on the baseband chip respectively, utilize single baseband chip having the baseband chip of powerful CPU processing capacity or to have a dual core to realize the processing of voice signal and multi-media signal.Here, camera can be one, is used to simultaneously take pictures, shooting and video telephone, also can be two, and one is used to take pictures, make a video recording, and another is used for video telephone.
Particularly, as shown in Figure 2, when taking pictures or make a video recording, the initial data that is obtained by camera is input in the baseband chip.Particularly, this baseband chip in Fig. 2, comprise digital signal processor (Digital Signal Processor, DSP), central processing unit and modulation module.In baseband chip, the data that are input in the digital signal processor after the A/D conversion are handled by digital signal processor.For taking pictures, digital signal processor is sampled, is encoded for the picture signal of input, for example JPEG encodes, encoded image data is outputed to display device, carry out preview by display device, then when the user presses particular key and takes pictures, central processing unit (CPU, arm processor for example) sends instruction, after the instruction that receives from central processing unit, digital signal processor is imported encoded image data in the central processing unit, and by central processing unit this view data is deposited in the memory device, for example in the file system of memory device.Can picture in this document system, with the application program of taking pictures, making a video recording and video telephone is relevant, short message and telephone directory etc.
For shooting, its processing is roughly the same, and what difference was the data that shooting obtains are carried out is mpeg encoded.
When carrying out visual telephone, be input in the baseband chip by interface corresponding on the baseband chip respectively by the sound initial data of speech ciphering equipment input with by the original image data that camera obtains.Digital signal processor carries out audio coding to the sound initial data, and for example AAC coding (Advanced AudioCoding) carries out image encoding, for example mpeg encoded to original image data.Audio signal that will form after will encoding then and vision signal synchronously are input to modulation/demodulation modules and modulate under the control of central processing unit, and send to the opposing party who carries out visual telephone via network by the transmission/receiver module (figure does not show) of portable terminal.This modulation/demodulation modules will be carried out demodulation by the vision signal and the audio signal of coming the other side that automatic network receives that transmission/receiver module receives, and correspondingly decode by digital signal processor, output to speech ciphering equipment and display device at last respectively, thereby realize video telephone communications.
Above-mentioned modulation/demodulation modules can be to be stored in the memory device with form of software, when carrying out the video telephone processing, calls and carry out corresponding processing by digital signal processor.
This mode that adopts above-mentioned baseband chip to handle, its advantage is not need to adopt extra multimedia chip, so can save cost; Shortcoming is that the software code amount is big, and encoding and decoding speed is subjected to bigger restriction, and is relatively poor for the tenability of the camera of high pixel, and the pixel upgrading ability deficiency supported of terminal.
The embedded processor speed of early stage baseband chip is unhappy, and attainable function is simple, is mainly used to processes voice signals, is not enough to handle the multimedia video data.Like this multimedia chip of embedded processor just in response to and give birth to.The multimedia chip of present stage is of a great variety, and additional function also has nothing in common with each other, and the function that can match has MP3, MP4, SD/MMC card, MPEG4, visual telephone or the like at present.
With Fig. 3 is example, adopt that multimedia chip is taken pictures, in the mobile phone of shooting, visual telephone, memory device, speech ciphering equipment are connected to baseband chip by corresponding interface, camera, display device are connected with multimedia chip by corresponding interface.Here, camera can be one, is used to simultaneously take pictures and video telephone, also can be two, corresponds respectively to and takes pictures and video telephone.Simultaneously, the digital signal processor in the baseband chip only carries out the speech processes in the visual telephone here, and multimedia chip then carries out the Video processing in the video telephone.
Particularly, as shown in Figure 4, the difference of itself and Fig. 2 is to adopt multimedia chip to replace traditional baseband chip to carry out Video processing, adopts baseband chip to carry out speech processes.The video image of multimedia chip after with Video processing handled and sent by baseband chip, and, obtain video image by baseband chip from visual telephone the other side, show by display device.Wherein, baseband chip is as master chip, and its central processing unit is controlled the overall situation of entire process.Because it is more powerful that the image processing function of this multimedia chip is compared the image processing function of baseband chip, therefore, baseband chip is less relatively to the requirement of software.The advantage of this method is that size of code is less, and decoding speed is fast, can support the camera of high pixel, and upgradability is good; Shortcoming is not only will add the multimedia chip, also may need to use the camera of focusing automatically, causes cost to increase.Simultaneously, the multimedia chip that present stage has video telephone function all is high-end chip, and cost is than higher.
Summary of the invention
The objective of the invention is to, a kind of portable terminal is provided.
Portable terminal of the present invention has the baseband chip that is used to realize video telephone, the camera and the speech ciphering equipment that are used for video telephone, be used for memory file system memory device, display device, be used to realize the multimedia chip of taking pictures and making a video recording and be used to the camera of taking pictures and making a video recording.This camera, speech ciphering equipment and display device that is used for video telephone is connected to this baseband chip by interface corresponding on the baseband chip, this baseband chip will be converted into corresponding video and audio signal from the image of camera that is used for video telephone and speech ciphering equipment and the initial data of sound, and the vision signal and the audio signal of the video telephone of automatic network are converted to corresponding voice signal and video image in the future.This camera that is used to take pictures and make a video recording is connected to multimedia chip by corresponding interface on the multimedia chip, this multimedia chip will be converted to corresponding view data from the original image data of the camera that is used to take pictures and make a video recording under the control of baseband chip, and will show by display device.
Above-mentioned memory device is further used for storing the view data that multimedia chip generates.
Wherein, above-mentioned baseband chip is the combination of digital baseband chip, Analog Baseband chip or digital baseband chip and Analog Baseband chip, and this multimedia chip is OMAP chip or JPEG chip.
And in portable terminal of the present invention, the pixel that is used for the camera of video telephone is less than the pixel that is used to the camera of taking pictures and making a video recording.The pixel that is used for the camera of video telephone can be 10-400 ten thousand pixels, 300,000 pixels for example, and the pixel that is used to the camera of taking pictures and making a video recording can be 10-600 ten thousand pixels, for example 2,000,000 pixels.
The invention has the beneficial effects as follows: realize video telephone function by adopting baseband chip and connected camera, adopt multimedia chip and connected camera to realize taking pictures and camera function, thereby portable terminal can be realized video telephone function, with take pictures, the separating of camera function.And, realize video telephone by adopting low pixel camera head, realize taking pictures and making a video recording by adopting the high-pixel camera head, can avoid adopting the camera of automatic focusing, therefore, both can make full use of the video telephone function of baseband chip, also can reduce cost.
Description of drawings
Fig. 1 is for adopting baseband chip and realize video telephone and take pictures and the simplified structure diagram of the portable terminal of camera function.
Fig. 2 is the concrete structure figure of the functional module of portable terminal shown in Figure 1.
Fig. 3 is for adopting multimedia chip and realize video telephone and take pictures and the simplified structure diagram of the portable terminal of camera function.
Fig. 4 is the concrete structure figure of the functional module of portable terminal shown in Figure 3.
Fig. 5 is the simplified structure diagram of portable terminal of the present invention.
Fig. 6 is the concrete structure figure of the functional module of portable terminal shown in Figure 5.
Embodiment
Below with reference to description of drawings portable terminal of the present invention.
Fig. 5 is the simplified structure diagram of portable terminal of the present invention.This portable terminal comprises baseband chip, multimedia chip, is used to the camera of taking pictures and making a video recording, the camera that is used for video telephone and speech ciphering equipment, storage device and display device.
Wherein, be used for the camera of video telephone and speech ciphering equipment and memory device and be connected to baseband chip by interface corresponding on the baseband chip, the camera, the display device that are used to take pictures and make a video recording are connected to multimedia chip by interface corresponding on the multimedia chip.Baseband chip is as master chip, and central processing unit wherein is used for overall situation control.Alternately, this display device is connected on the baseband chip.
Particularly, as shown in Figure 6, when taking pictures or make a video recording, carry out being input to multimedia chip after the A/D conversion through the utilizing camera interface on the multimedia chip by the initial data that the camera that is used to take pictures and make a video recording obtains.For taking pictures, multimedia chip is sampled, is encoded for the picture signal of input, for example JPEG encodes, encoded image data is input to display device carries out preview, then when the user presses particular key and takes pictures, central processing unit in the baseband chip sends instruction, after the instruction that receives from central processing unit, multimedia chip is imported encoded image data in the central processing unit, and by central processing unit this view data is deposited in the memory device, for example in the file system of memory device.For shooting, its processing is roughly the same, and what difference was the data that shooting obtains are carried out is mpeg encoded.
When carrying out visual telephone, be input to baseband chip by speech interface and utilizing camera interface corresponding on the baseband chip respectively by the sound initial data of speech ciphering equipment input with by the original image data that the camera that is used for video telephone obtains.In baseband chip, digital signal processor carries out audio coding to the sound initial data, and for example AAC coding (Advanced Audio Coding) carries out image encoding, for example mpeg encoded to original image data.Voice signal that will form after will encoding then and picture signal synchronously are input to modulation/demodulation modules and modulate under the control of central processing unit, and send to the opposing party who carries out visual telephone via network by transmission/receiver module (figure does not show).This modulation/demodulation modules will send/and the vision signal and the audio signal of coming the other side that automatic network receives that receiver module receives carry out demodulation, and correspondingly decode by digital signal processor, output to speech ciphering equipment and display device at last respectively, thereby realize video telephone communications.
Above-mentioned modulation/demodulation modules can be to be stored in the memory device with form of software, when carrying out the video telephone processing, is called by digital signal processor.
Among the present invention, the above-mentioned camera that is used for video telephone is low pixel camera head, and the baseband chip that it connected can be supported the video telephone function of portable terminal.Because the needed camera pixel of video telephone is lower usually, therefore, existing most of baseband chips can both be supported video telephone.The above-mentioned camera that is used to take pictures and make a video recording is the high-pixel camera head, the multimedia chip that it connected only needs to support the high pixel of portable terminal to take pictures and camera function gets final product, do not need to support video telephone, therefore can avoid the repetition with the baseband chip function, thereby reduce the cost of the multimedia chip that is adopted.Can realize that portable terminal is taken pictures, shooting separates with the video telephone function treatment channel from hardware like this, and then the suitable camera of selection that can be respectively video telephone as required, take pictures and make a video recording, for example for video telephone, can select the camera of 10-400 ten thousand (for example 300,000) pixel, for taking pictures and making a video recording, can select the camera of 10-600 ten thousand (for example 2,000,000) pixel, concrete selection can be carried out cost-effective configuration according to the actual needs.Therefore, portable terminal of the present invention does not need to adopt the camera with automatic focusing, therefore can reduce cost.
And, portable terminal of the present invention has made full use of the multimedia processing capacity of baseband chip, can be good at realizing video telephone function, simultaneously by adopting other multimedia chip to make portable terminal on digital camera functionality, increase flexibility, can well realize high pixel camera function, both guarantee the upgradability that high pixel is taken pictures.
Above-mentioned portable terminal can be regular handset, smart mobile phone, PDA(Personal Digital Assistant), the third generation (3G) mobile phone, super 3G mobile, the 4th generation (4G) mobile phone and other have the various portable terminals of visual telephone and digital camera functionality simultaneously.Above-mentioned baseband chip can be digital baseband chip, Analog Baseband chip and their combination thereof, as the MSM6250 of Qualcomm, MSM6250A, MSM6275 family chip.Above-mentioned baseband chip can an embedded central processing unit (CPU), also can embedded one or many digital signal processors (DSP).Above-mentioned multimedia chip can be general multimedia process chip, as the OMAP family chip of TI company, also can be the special-purpose JPEG IC chip of codec chip as using always.
Therefore; the present invention is not limited to the foregoing description; those those of ordinary skills should drop within the system and method scope required for protection of claim of the present invention by reading behind the application simple modification, modification or equivalent that the present invention made.
Claims (7)
1. portable terminal, have: the baseband chip that is used to realize video telephone, the camera and the speech ciphering equipment that are used for video telephone, the memory device and the display device that are used for memory file system, this is used for the camera of video telephone, speech ciphering equipment and display device are connected to this baseband chip by interface corresponding on the baseband chip, this baseband chip will be converted into corresponding video and audio signal from the image of camera that is used for video telephone and speech ciphering equipment and the initial data of sound, and the vision signal and the audio signal of the video telephone of automatic network are converted to corresponding voice signal and video image in the future, it is characterized in that
This portable terminal further comprises the multimedia chip that is used to realize to take pictures and make a video recording, be used to the camera of taking pictures and making a video recording, this camera that is used to take pictures and make a video recording is connected to multimedia chip by corresponding interface on the multimedia chip, this multimedia chip will be converted to corresponding view data from the original image data of the camera that is used to take pictures and make a video recording under the control of baseband chip, and will show by display device.
2. portable terminal as claimed in claim 1 is characterized in that, above-mentioned memory device is further used for storing the view data that multimedia chip generates.
3. portable terminal as claimed in claim 1 or 2 is characterized in that, this baseband chip is the combination of digital baseband chip, Analog Baseband chip or digital baseband chip and Analog Baseband chip.
4. portable terminal as claimed in claim 3 is characterized in that, this multimedia chip is OMAP chip or JPEG chip.
5. portable terminal as claimed in claim 4 is characterized in that, the pixel that is used for the camera of video telephone is less than the pixel that is used to the camera of taking pictures and making a video recording.
6. portable terminal as claimed in claim 5 is characterized in that, the pixel that is used for the camera of video telephone is 10-400 ten thousand pixels, and the pixel that is used to the camera of taking pictures and making a video recording is 10-600 ten thousand pixels.
7. portable terminal as claimed in claim 6 is characterized in that, the pixel that is used for the camera of video telephone is 300,000 pixels, and the pixel that is used to the camera of taking pictures and making a video recording is 2,000,000 pixels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510115622 CN1964469A (en) | 2005-11-08 | 2005-11-08 | Mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510115622 CN1964469A (en) | 2005-11-08 | 2005-11-08 | Mobile terminal |
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| CN1964469A true CN1964469A (en) | 2007-05-16 |
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| CN 200510115622 Pending CN1964469A (en) | 2005-11-08 | 2005-11-08 | Mobile terminal |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789982B (en) * | 2009-01-23 | 2012-06-27 | 英华达(上海)电子有限公司 | Mobile terminal and image shooting control method of mobile terminal |
| US8279253B2 (en) | 2007-03-15 | 2012-10-02 | Samsung Electronics Co., Ltd. | Image communicating display apparatus and image communication method thereof |
| CN101316420B (en) * | 2008-06-30 | 2012-10-17 | 北京天语君锐科技有限公司 | Mobile terminal and communication method |
| CN101340656B (en) * | 2008-05-08 | 2014-04-09 | 北京天宇朗通通信设备股份有限公司 | Signal processing system and method |
| CN103905921A (en) * | 2012-12-28 | 2014-07-02 | 联想(北京)有限公司 | Method for transmitting multimedia data and electronic device |
-
2005
- 2005-11-08 CN CN 200510115622 patent/CN1964469A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8279253B2 (en) | 2007-03-15 | 2012-10-02 | Samsung Electronics Co., Ltd. | Image communicating display apparatus and image communication method thereof |
| CN101340656B (en) * | 2008-05-08 | 2014-04-09 | 北京天宇朗通通信设备股份有限公司 | Signal processing system and method |
| CN101316420B (en) * | 2008-06-30 | 2012-10-17 | 北京天语君锐科技有限公司 | Mobile terminal and communication method |
| CN101789982B (en) * | 2009-01-23 | 2012-06-27 | 英华达(上海)电子有限公司 | Mobile terminal and image shooting control method of mobile terminal |
| CN103905921A (en) * | 2012-12-28 | 2014-07-02 | 联想(北京)有限公司 | Method for transmitting multimedia data and electronic device |
| CN103905921B (en) * | 2012-12-28 | 2018-04-27 | 联想(北京)有限公司 | A kind of method and electronic equipment of multi-medium data transmission |
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