Summary of the invention
Technical problem to be solved by this invention is: utilize short-distance wireless communication technology to make the person of taking pictures can wireless preview shooting.
For achieving the above object, the present invention proposes a kind of wireless preview shooting method, comprise: send second portable terminal to after the preview image signal encoding that first portable terminal receives camera by the self radio module in the process of preview of taking pictures or make a video recording, second portable terminal is presented on the display screen of self after with the image signal decoding that receives, second portable terminal is pressed control button, send this control signal to first portable terminal by the self radio module, first portable terminal is received the action of taking pictures or make a video recording that triggers camera behind this signal.
Further, before shooting preview, first portable terminal and second portable terminal are opened the self radio function respectively, and finish pairing.
Further, after described pairing is finished, whether first portable terminal can prompting carry out preview image wireless synchronization transfer function before preview function is taken pictures or made a video recording in startup, after the user selects to carry out preview image wireless synchronization transfer function, in the wireless device that has searched, select second portable terminal.
Further, on the display screen of self, the back of simultaneously image information of camera collection being encoded is transferred to second portable terminal by wireless module to described first portable terminal with the image information display of camera collection.
Further, the user can be installed in tripod with first portable terminal or be fixed on certain position, and hand-held second portable terminal stands in the correct position place of the camera shooting of second portable terminal by the real-time synchronous images of watching display screen to show.
Further, the user presses the control button of second portable terminal, second portable terminal will send this control information to first portable terminal by the self radio module, first portable terminal is received the action of taking pictures or make a video recording that triggers self camera after this control information, finishes the shooting of preview image.
The present invention also proposes a kind of wireless preview shooting terminal, and it comprises baseband processing module, multimedia processing module, wireless transport module, display module, taking module; Wherein:
Baseband processing module complete operation system is to using the execution of software, protocol stack;
The multimedia processing module is finished the I/O of encoding and decoding and audio frequency and video;
Wireless transport module is in order to carry out wireless pairing with peripheral terminal, and the data behind the coding that the reception baseband processing module sends carry out by antenna data being sent after the rf modulations then; And receive the shooting instruction by antenna;
Display module is finished the demonstration of user interface and the preview of shooting picture in order to receive the view data of multimedia processing module output;
Taking module receives the collection of finishing captured image data after the shooting instruction that peripheral terminal sends.
Further, described baseband processing module also is used for the receiving and transmitting signal of radio-frequency module is carried out modulation, and control multimedia processing module is handled multi-media signal, and the control wireless transport module receives and sends data.
Further, the multimedia processing module is finished the I/O of H.264/MPEG4/H.263/MP3/MIDI encoding and decoding and audio frequency and video.
Further, described terminal has radio-frequency module, with so that described terminal as the means of communication access of radio network.
Further, described wireless transport module is bluetooth module or WiFi module or WAPI module.
To sum up, the invention discloses a kind of under the precondition that does not change existing terminal hardware, the method that wireless preview and control are mutually taken, the application of the method need not change the hardware that has portable terminal now, only need carry out function upgrading to mobile terminal software and just can realize mutual wireless preview and the function of controlling shooting between two portable terminals.The present invention has made full use of portable terminal that everybody generally carries and has realized other portable terminals are carried out wireless preview and control is taken, and has improved the experience of user in the auto heterodyne process, has enriched the function of portable terminal.
Embodiment
Technical scheme of the present invention need be upgraded to the software of existing portable terminal, makes portable terminal can have a kind of new function, and this terminal can be the terminal that mobile phone, camera, video camera etc. have camera function.After opening this new function, send second portable terminal to after the preview image signal encoding that first portable terminal receives camera by self bluetooth module in the process of shooting preview, second portable terminal is presented on the display screen of self after with the image signal decoding that receives, second portable terminal is pressed control button, bluetooth module by self sends this control signal to first portable terminal, and first portable terminal is received the shooting action that triggers camera behind this signal.This method comprises following key step:
Steps A, first portable terminal and second portable terminal are opened the Bluetooth function of self respectively, and finish pairing;
Step B, whether first portable terminal can prompting carry out preview image bluetooth synchronous transmission function before starting the shooting preview function, after the user selects to carry out preview image bluetooth synchronous transmission, in the bluetooth equipment that has searched, select second portable terminal again;
On the display screen of self, the back of simultaneously image information of camera collection being encoded is transferred to second portable terminal by bluetooth module with the image information display of camera collection for step C, first portable terminal;
Step D, the bluetooth module of second portable terminal decode after receiving the first portable terminal image transmitted information, are presented at then on the display screen of self;
Step e, the user can be installed in tripod with first portable terminal or be fixed on certain position, and hand-held second portable terminal stands in the correct position place of the camera shooting of first portable terminal by the real-time synchronous images of watching display screen to show;
Step F, the user presses the control button of second portable terminal, second portable terminal will send this control information to first portable terminal by the bluetooth module of self, and first portable terminal is received the shooting action that triggers self camera after this control information, finishes the shooting of preview image.
The portable terminal that relates to of the present invention mainly comprises with lower module:
Baseband processing module, the complete operation system is to using the execution of software, protocol stack;
The multimedia processing module is mainly finished the I/O that H.264/MPEG4/H.263/MP3/MIDI waits encoding and decoding and audio frequency and video, and the portable terminal that has does not have independent multimedia processing module, and the multimedia processing module is integrated in the baseband processing module;
The short-distance wireless module, the data in order to after carrying out the pairing of bluetooth with peripheral portable terminal and receiving the coding that baseband processing module sends send data by Bluetooth antenna.
Display module in order to receive the pictorial data of multimedia processing module output, is mainly finished the demonstration of user interface and the preview of shooting picture;
Taking module is mainly finished the collection of taking pictorial data, the pictorial data of gathering is sent to the multimedia processing module handle.
In order to further describe technical solution of the present invention, be elaborated below in conjunction with specific embodiments and the drawings.In the present embodiment, described terminal is example with the mobile phone, in other embodiments, terminal can be the terminal that has shoot function arbitrarily, and for example camera, video camera etc. are if camera, video camera, then need to add bluetooth module, make it have the short range wireless transmission function.
As shown in Figure 1, be the system module figure of embodiment of the invention terminal, mainly comprise: baseband processing module 101, power management module 102, clock module 103, multimedia processing module 104, radio-frequency module 105, Bluetooth transmission module 106, display module 107, taking module 108.
Baseband processing module 101, the execution of complete operation system and application software and protocol stack, be used for the receiving and transmitting signal of radio-frequency module 105 is carried out modulation, 104 pairs of multi-media signals of control multimedia processing module are handled, and 106 pairs of data of control Bluetooth transmission module receive and send;
Power management module 102 is used to baseband processing module 101, multimedia processing module 104, radio-frequency module 105,106 power supplies of Bluetooth transmission module of whole system, and the charging process of terminal is managed;
Clock module 103 is used to baseband processing module 101, radio-frequency module 105, Bluetooth transmission module 106 that unified clock reference is provided;
Multimedia processing module 104 is mainly finished the I/O that H.264/MPEG4/H.263/MP3/MIDI waits encoding and decoding and audio frequency and video, and the portable terminal that has is integrated into multimedia processing module 104 in the baseband processing module 101;
Radio-frequency module 105 sends to after the radiofrequency signal demodulation that receives in order to the antenna of finishing portable terminal that baseband processing module 101 is handled and the antenna by portable terminal after the data-modulated of baseband processing module 101 outputs is sent signal;
Bluetooth transmission module 106, in order to carry out the pairing of bluetooth with peripheral portable terminal, the data behind the coding that reception baseband processing module 101 sends carry out by Bluetooth antenna data being sent after the rf modulations then; And, decode sending to baseband processing module 101 after the wireless data demodulation by the Bluetooth antenna receiving radio data; In other embodiments, this Bluetooth transmission module can be other short range wireless transmission modules such as WIFI, WAPI.
Display module 107 in order to receive the view data of multimedia processing module 104 outputs, is mainly finished the demonstration of user interface and the preview of shooting picture;
Taking module 108 is mainly finished the collection of captured image data, the view data of gathering is sent to multimedia processing module 104 handle.
Fig. 2 is an embodiment of the invention implementation method schematic flow sheet.Present embodiment provides a kind of software operation flow chart that makes portable terminal A carry out wireless preview and control shooting by portable terminal B, and its concrete operations are as follows:
Step 201: portable terminal A and portable terminal B open the Bluetooth function of self respectively, and finish pairing process to each other;
Step 202: whether the prompting user opened preview image bluetooth synchronous transmission function when portable terminal A started the shooting preview function, if the user selects to need to open preview image bluetooth synchronous transmission function, then execution in step 203, otherwise execution in step 210;
Step 203: portable terminal A selects portable terminal B in the bluetooth equipment tabulation that searches and finish pairing after, the shooting preview function of portable terminal A is normally opened;
Step 204: the taking module 108 of portable terminal A sends to multimedia processing module 104 with the image information of gathering, and multimedia processing module 104 is carried out the display module 107 that sends to self behind the picture information decoding live preview of image;
Step 205: the baseband processing module 101 of portable terminal A sends to portable terminal B with the bluetooth module 106 by self after the encoding image information;
Step 206: the data that portable terminal B accepts will receive by the bluetooth module 106 of self after the bluetooth transmission request of portable terminal A send to multimedia processing module 104, and multimedia processing module 104 is carried out the display module 107 that sends to self behind the picture information decoding synchronous preview of taking module 108 images acquired of portable terminal A;
Step 207: if portable terminal B receives the shooting control information that the user triggers, then execution in step 208, otherwise execution in step 204;
Step 208: the shooting control information that portable terminal B will receive sends to portable terminal A by the bluetooth module 106 of self;
Step 209: after the bluetooth module 106 of portable terminal A is received the shooting control information of portable terminal B transmission, this is taken control information send to baseband processing module 101, execution in step 211 then;
Step 210: portable terminal A waits for that the user presses and will take control information behind self the shooting key and send to baseband processing module 101;
Step 211: the baseband processing module 101 of portable terminal A is received and is taken the shooting action that triggers taking module 108 after the control information, finishes the shooting of preview image.
To sum up, the invention discloses a kind of under the precondition that does not change existing portable terminal hardware, the method that wireless preview and control are mutually taken, the application of the method need not change the hardware that has portable terminal now, only need carry out function upgrading to mobile terminal software and just can realize mutual wireless preview and the function of controlling shooting between two portable terminals.The present invention has made full use of portable terminal that everybody generally carries and has realized other portable terminals are carried out wireless preview and control is taken, and has improved the experience of user in the auto heterodyne process, has enriched the function of portable terminal.
Certainly; the present invention also can have numerous embodiments; in the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making various corresponding changes or variation according to the present invention; in every case any modification of being done within the spirit and principles in the present invention, be equal to replacements, improvement, all should be included within protection scope of the present invention.