TW201334515A - Portable image processing apparatus, system and touch-control method thereof - Google Patents

Abstract

The instant disclosure generally relates to a portable image processing apparatus, system, and a touch-control method thereof. The portable image processing apparatus is implemented as an electronic device with functions of processing video and audio signals, and wireless communication. While the apparatus receives video and audio signals, the signals are under a preprocessing procedure in accordance with an external display's specifications. Afterward, a control program is incorporated to processing the AV signals and transmitting the signals to the display for playing. In one embodiment, the portable image processing apparatus is equipped with a touch panel, whereby a user may conduct a touch signal through a touching action. The touch signal may be interpreted as a control command for initiating an AV output function to transmit the AV signals by means a wireless communication technology.

Description

Portable image processing device, system and touch method

The invention provides a portable image processing device, a system and a touch method, and particularly provides a portable device with a video and audio transfer function, and has a touch method for starting a video output function with a touch signal.

The digitized audio and video data can be used to store a digital signal of a specific host. In order to be played on the user device, in addition to the way that the general network audio and video data can be received and played through the computer system, if it is to be displayed on a general television display. A digital video converter box called a set top box (STB) is usually used to convert the input video signal into the audio and video content that can be played on the television display.

The digital video converter box can receive the video data stream transmitted from a specific source (such as a network, a wireless/cable TV station, a satellite, a computer host), and then convert the compressed digital signal into a television content and display it on the television display. . The content received by such a digital video conversion box is in addition to the image and sound that the analog TV can provide, and is capable of receiving data content, including an electronic program guide (EPG), an internet web page, a subtitle, and the like.

Related art techniques for using the set-top box to play video and audio can refer to the schematic diagram of FIG. In this example, a set-top box 10 is connected to the television set 11 via an audio-visual signal line 101. The other end of the example is connected to a content service provider 13 via a network connection 103. The content service provider 13 can provide various audio-visual contents. The provider compresses and encodes the video and audio content to be broadcasted to the terminal device, transmits it to the network, receives it from each terminal box 10, decompresses and decodes it, and becomes a specification that can be played by the television set 11, and smoothly plays the video and audio content.

Due to the popularity of network applications, personal electronic devices with audio and video playback functions have gradually become personal portable devices, but their display screens are usually not large. In response to the demand, the present disclosure proposes a portable image processing device, system and touch. The control method can realize a mobile digital video conversion device, and the received video data stream is transmitted to another external display through wireless communication means through signal processing.

According to one embodiment, a portable image processing device connected to a network and another display includes a central processing unit for coordinating signal and signal processing in a portable image processing device, a memory module for temporarily storing signals, and a display. Display unit for audio and video and control screen, wireless network module for connecting network, audio and video processing unit for processing audio and video signals, wireless communication module for wireless connection with display, and touch mode for generating touch signals according to touch behavior The group and an instruction recognition unit that recognizes the touch signal as a control command.

The embodiment shows that the user can operate the touch display on the portable image processing device, and the generated touch signal is converted into a control command, and the video signal received by the device can be transmitted to the display for convenient sharing to other people. .

In particular, the video processing unit in the portable image processing device can adjust the image size, resolution, update frequency and color of the video signal according to the display specification of the display, and is processed by the wireless communication module to conform to a wireless high definition. A signal of the wireless HDMI specification and the transmission of audio and video signals by means of a communication protocol.

According to another embodiment of the present disclosure, the portable image processing device utilizes a touch method to implement signal processing and transfer, wherein the step includes receiving the video signal by the portable image processing device and processing the image signal (first) The video signal processing step is displayed on one of the display panels of the portable image processing device, and then a control program is started. After the display is connected, the display specification of the display is obtained, and then the corresponding audio and video processing steps are executed according to the display specifications. Two audio and video signal processing steps). Then, the user operates, the device receives a touch signal, and after recognition, generates a control command, and activates a video output function to transmit the video signal through the video processing step.

In the step of connecting the display, the related program may include: generating a scan signal by the portable image processing device, scanning a display that can obtain the right to play in the vicinity, and then receiving a response signal of a display in the range of the scan signal to obtain control of the display And obtain display specifications of the display, the display specifications may include the visible area size, resolution, update frequency and color of the display.

In response to the user's need to load video and audio data from the network, especially for a personal electronic device having audio and video playback functions, such as a tablet computer with touch function, a smart phone or an electronic device having the same function, the present invention proposes a The portable image processing device, the system and the touch method enable the electronic devices (which may have a touch function) that gradually become personal portable devices to conveniently transfer the received audio and video data streams to another external display, such as a television display. Such display screens are usually large, making it easy to view and share audio and video content to others.

The portable image processing device proposed by the disclosure can realize a mobile digital video conversion device, which transmits the received video data stream to an external display by wireless communication according to the specification of the display to be broadcasted through internal signal processing. Play.

Referring to FIG. 2 , a schematic diagram of a connection structure of the portable video processing device of the present invention is shown. The figure shows a portable audio and video processing device 20 , which can be used for a tablet computer with wireless communication capability and touch function. Smart phones do not exclude other electronic devices with similar functions.

The portable video processing device 20 is connected to the display 201 by a specific wireless communication protocol, and the other end is connected to a wireless local area network (WiFi), a mobile communication technology (3G, LTE, WiMAX, etc., a higher bandwidth mobile communication technology). Network 22. The network 22 has a plurality of providers that provide digital content, such as the illustrated content provider 203, with at least one host (not shown) that provides streaming audio and video content.

When the portable video processing device 20 obtains the digital audio and video content from the specific content provider 203, it may be displayed on the display panel on the device 20 (via the first video signal processing step), or may be subjected to the video pre-processing step (second The video signal processing step is to convert the video signal into the content of the specification suitable for playing by the display 201, and broadcast it to the display 201 by using a wireless communication means for transmitting the video signal.

In this example, the portable video processing device 20 implements a portable digital video conversion device, and further provides a touch control mode in which a user can touch a gesture to generate a control command, thereby controlling the broadcast video and audio through the touch control manner. For a portable device having a video transfer function, reference may be made to the circuit block diagram of the portable video processing device of the present invention shown in FIG.

The main circuit functions of the portable video processing device 30 are described by circuit blocks. The portable video processing device 30 is connected to the display 32 at one end and to the network 34 at the other end.

The portable video processing device 30 includes a central processing unit 301, such as a central processing unit (CPU) of the computer system, for processing signals in the portable image processing device 30, including performing operations and signals between the circuit units. The central processing unit 301 is electrically connected to other circuit units, and at least includes a display unit 302, a wireless network module 303, a wireless communication module 304, a touch module 305, a video processing unit 306, and instruction recognition. Unit 307 and memory module 308.

The memory module 308 is a signal processed by the temporary central processing unit 301, and can be implemented as a dynamic random access memory or a non-volatile memory. The memory module 308 can record a plurality of control commands corresponding to the plurality of touch signals, because the portable video processing device 30 can simultaneously perform the function of controlling the audio and video playback and the control commands generated by the various touch actions. The corresponding information, and the video playback is not limited to the display of a specific display specification, and accordingly, the memory module 308 needs to record the display specifications corresponding to different displays.

The display unit 302 includes a display panel and associated circuitry on the portable video processing device 30 for displaying internal audio and video data and displaying a control screen for remotely controlling video playback.

The wireless network module 303 is a circuit module for the portable video processing device 30 to contact an external network device, and includes a 3G/LTE/WiMAX capable of connecting to a mobile communication network or a wireless network module supporting other broadband wireless networks. The portable video processing device 30 obtains video and audio signals via the network 34 through the wireless network module 303.

After the video signal is obtained by the wireless network module 303, the digital signal will be decompressed and decoded by the video processing unit 306, and the digital signal processing (the first video signal processing step) is displayed on the device 30 for playback. The content of the panel, and the video processing unit 306 can further convert the video signal into a signal that can be played by the display 32 according to the obtained display specification of the display 32. In this embodiment, the audio processing unit 306 can adjust the image size, resolution, update frequency and color of the video signal according to the display specification of the display 32 (the second video signal processing step). The audio processing unit 306 can be implemented by a circuit in the device 30 or by a software module.

The wireless communication module 304 is a communication interface between the portable video processing device 30 and the external display 32. The related communication protocol is mainly for transmitting video signals and control commands generated by the device 30, such as wirelessly transmitting high-resolution images. Wireless HDMI (wireless High-Definition Multimedia Interface), the control command is the signal that meets this specification, and is connected to the display 32, but does not exclude other communication technologies that can realize wireless audio and video transmission, such as WiFi. , WHDI (Wireless Home Digital Interface) and so on.

The embodiment of the portable audio-visual processing device 30 described in the present disclosure may be an electronic device having a touch panel, wherein the touch module 305 includes a touch signal generated according to the touch behavior, for example, The touch panel performs a touch behavior (such as an arc, a tap action, a specified action), and the touch behavior generates a touch signal in a specific control interface, and the control unit 307 recognizes a control. The instruction, for example, corresponds to a lookup table that has been set, and a touch signal corresponds to a control command. If the control command is not valid, the touch and recognition actions are repeated until an effective control command is generated, and then The wireless communication module 304 is transmitted to the connected display 32.

The portable video processing device 30 is a device with wireless communication function and audio-video conversion. The wireless network module 303 is connected to the wireless network through the wireless network module 303, and is connected to the provider of the audio and video signal, as shown in FIG. The source host is connected to the display 32 via the wireless communication module 304 by means of a specific wireless video transmission means, and the video signal is transmitted to the display 32 by this means.

The display 32 described herein is also an electronic device with wireless communication capability, which is connected to the portable video processing device 30 by the same communication protocol, receives the control signal, and transmits and plays the audio and video content by the streaming technology.

When the portable video processing device 30 implements the above-mentioned digital video conversion technology, a corresponding control program (which can be a comprehensive description of various programs and functions) should be installed, and when the control program is executed, the connection with the external display 32 is started. Then, according to one of the embodiments, an interface for controlling video and audio playback can be displayed on the screen. In this example, a touch signal can be triggered by the touch action, and the video output function can be activated thereby.

When processing the video signal, the portable image processing device performs an initial first video signal processing step according to the specifications of the display to be broadcasted, including the connection display, obtaining the display specification, adjusting the playback size, the resolution, the update frequency, and the color. The parameters, such as the video pre-processing program (the first video signal processing step) described in FIG. 4, include a starting step S401, and after the control program in the portable video processing device is activated, the scanning signal can be generated according to the indication. A specific wireless communication technology is used to scan a range of broadcastable signals and send a request signal; the display is an electronic device having a corresponding communication protocol, and a request signal is received in the vicinity, and will respond under the specification of the communication protocol.

In the scanning process, in step S403, the control signal in the portable video processing device can receive the response signal of the near-end device, confirm the communication channel, and determine that the display can broadcast the audio-visual content, and then obtain the authorization of the control, such as In step S405, the portable video processing device obtains the authorization, and can transmit the control signal to the connected display and simultaneously obtain the display specification of the display (or its player) (step S407). After obtaining control and obtaining display specifications, the connection to the display is completed.

According to another embodiment, the video pre-processing program described in FIG. 4 may have different steps depending on the environment, such as ignoring the scanning step and directly specifying the broadcast object; or unilaterally broadcasting the video signal, and receiving the object. The image signal can be directly processed for progress playback; or the display specifications of one or more displays are recorded in the internal memory of the device, and the user selects the object to be played.

According to the embodiment of the portable image processing device, the system and the touch method of the present invention, the control program executed in the portable image processing device has the function of recognizing the touch gesture, and is particularly used for processing the control command for wirelessly broadcasting the video signal. A schematic diagram of performing a touch gesture using the portable video processing device as described in FIG. 5 can be referred to.

The portable audio and video processing device 50 is connected to the display 52 by means of wireless communication. The device 50 has a touch panel, and the user can generate a gesture by using a gesture to generate a track signal on the touch panel by using a gesture. The signal will be identified to generate a corresponding control command. The control command includes initially starting the video output function, and then transmitting the audio and video content processed according to the visible area size, resolution, update frequency and color specifications of the display to the display 52 (second The audio and video signal processing step) can then control the video and audio playback in the display 52 by using a control command, at least including starting the video output command, the play and pause command, and the forward or backward fast forward and slow forward commands.

Next, the flow shown in FIG. 6 describes the flow of the wireless audio distribution by the portable video processing device of the present invention.

Performing the digital video conversion by using the portable video processing device proposed in the disclosure, the process includes the first step S601, the device first receives the video signal, for example, receives a complete file, or preferably receives the video data stream by streaming technology. . In step S603, the portable video processing device first performs signal processing, including decoding and decompressing the video signal (the first video signal processing step), and displaying the display on the display of the portable video processing device in an appropriate manner. On the screen (step S605), at this time, the device will start the control program (step S607), the control program includes a connection driver with the external display, and can generate a control interface for the user to operate and activate the connection display. Pre-operation (step S609), one of the embodiments may send a request signal to the surrounding device, obtain control of the display that can broadcast the content, and obtain information such as display specifications, as shown in FIG.

Then, when the control program successfully connects a display and obtains (or queries through the table) the display specifications (including image size, resolution, update rate, color, etc.) of the display, the video processing steps are performed according to the specification (the first The two video signal processing steps are performed, for example, by performing audio-video conversion through the audio/video processing unit (306) implemented in hardware or software in FIG. 3, and converting the audio-visual content suitable for the display to the display (step S611).

After the foregoing pre-program, the user can view the audio-visual content by the display screen of the portable audio-visual processing device, and can also broadcast the audio-visual content to the display according to the instruction of the control program. According to an embodiment, the control program can generate a user operation interface, and the user can perform operations according to instructions provided by the control program or descriptions of the operation manual, such as generating a series of touch signals through a touch behavior. The device receives the touch signal (step S613), and the touch signal is translated into a signal for generating a control command through the in-device identification means (step S615).

Then, the touch signal is identified according to the preset command and the touch signal. After the touch signal is recognized, the program will determine whether the triggered signal is valid to generate a control command (step S617). In order to prevent the user from frequently generating the wrong action and triggering the generation of the control command, the touch signal corresponding to the control command may be designed as a relatively complex sliding track; or the control program may generate a corresponding operation interface for the user to click to generate the control command.

If the touch signal does not correspond to a valid control command or an incorrect command (No), the user can be notified of the operation through a message (text message, light number, sound, etc.), and the process returns to step S613. Standby to recognize another touch signal; if the touch signal has successfully responded to a control command (Yes), the command recognition unit (Fig. 3, 307) implemented by hardware or software is identified, for example, corresponding to a lookup table, such as steps S619, thereby generating a control command, the control command will activate the video output function of the device (step S621), and transmit the related message to the display, and transmit the video signal through the pre-recording processing step to the display through the specific wireless communication protocol (step S623). ).

In the process of playing audio and video content on the display, the user can still perform touch operation through the control interface on the portable audio and video processing device. The control program also recognizes and converts the touch signal as a control command, in addition to the above-mentioned start-up audio and video output command, General audio and video playback operations, such as playback and pause commands, as well as forward or backward fast forward and slow turn, shutdown and other instructions.

In summary, in order to achieve the purpose of broadcasting the audio and video content played by the personalized electronic device to another display, the present disclosure proposes a portable image processing device, a system and a touch method, and the portable image processing device operates as one. The portable digital video conversion device can transfer the received video and audio data stream to an external display for playing, and execute related control commands through the touch mode.

However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent structural changes that are made by using the specification and the contents of the present invention are equally included in the present invention. Within the scope, it is combined with Chen Ming.

10. . . Set-top box

11. . . TV set

13. . . Content service provider

101. . . Audio and video signal line

103. . . Network connection

20, 30, 50. . . Portable audio and video processing device

201. . . monitor

203. . . Content provider

twenty two. . . network

301. . . Central processing unit

302. . . Display unit

303. . . Wireless network module

304. . . Wireless communication module

305. . . Touch module

306. . . Video processing unit

307. . . Instruction identification unit

308. . . Memory module

32,52. . . monitor

34. . . network

Step S401~S407 Connection Display Processing Program

Steps S601~S623 Video and audio broadcast program

1 depicts a schematic diagram of a conventional technique for playing video and audio using a set-top box;

2 is a schematic diagram showing a connection structure of a portable audio and video processing apparatus according to the present invention;

3 is a block diagram showing the circuit of the portable video and audio processing device of the present invention;

The process shown in FIG. 4 describes a processing procedure of the connection display of the portable video processing device of the present invention;

FIG. 5 depicts a schematic diagram of performing a touch gesture using a portable video processing device;

The flow shown in FIG. 6 describes the flow of the wireless audio distribution by the portable video processing device of the present invention.

30. . . Portable image processing device

301. . . Central processing unit

302. . . Display unit

303. . . Wireless network module

304. . . Wireless communication module

305. . . Touch module

306. . . Video processing unit

307. . . Instruction identification unit

308. . . Memory module

32. . . monitor

34. . . network

Claims (20)

A touch method of a portable image processing device, comprising: the portable image processing device receiving an audio and video signal; displaying the video image processing device after the first video signal processing step; starting a control program, and wirelessly connecting a display of the display and a display specification of the display; performing a second video signal processing step according to the display specification of the display; receiving a touch signal; identifying the touch signal; and converting the touch signal to a control command; And transmitting, by a wireless communication means, the control command for controlling audio and video playback to the display. The touch method of the portable image processing device of claim 1, wherein the control command comprises: activating an audio and video output function, and transmitting the video signal through the second video signal processing step to the display The touch method of the portable image processing device of claim 1, wherein the first video signal processing step comprises: generating a scan signal; receiving a response signal of the display within a scan signal range; and obtaining the display Control to obtain the display specifications of the display. The touch method of the portable image processing device of claim 3, wherein the display specification comprises a visible area size, a resolution, an update frequency, and a color of the display. The touch method of the portable image processing device according to claim 3, wherein the wireless communication means conforms to a wireless high definition multimedia interface specification, and the step of generating a scan signal is to generate a wireless high definition The signal of the multimedia interface specification; the signal that the display responds to is a signal conforming to the specification of the wireless high-definition multimedia interface. The touch method of the portable image processing device according to claim 5, wherein the display is an electronic device having wireless communication capability. The touch method of the portable image processing device according to claim 1, wherein the video signal is a video stream signal loaded by the network. The touch control method of the portable image processing device of claim 1, wherein the control command converted by the touch signal includes at least the start audio and video output command, the play and pause command, and forward or backward. Fast forward and slow turn instructions. A portable image processing device includes: a central processing unit that processes signals in the portable image processing device; a memory module that temporarily stores signals processed by the central processing unit, and is electrically connected to the central processing unit; a display unit for displaying audio and video and control pictures, electrically connected to the central processing unit; a wireless network module, the portable audio and video processing device obtains audio and video signals through the network through the wireless network module, and electrical Connecting the central processing unit; a video processing unit for processing the audio and video signal, electrically connecting the central processing unit; a wireless communication module, the portable audio processing device is connected to a display through the wireless communication module, and transmitting the The audio and video signal is electrically connected to the central processing unit; a touch module that generates a touch signal according to the touch behavior is electrically connected to the central processing unit; and an instruction recognition unit that recognizes the touch signal as a control command The electrical processing unit is electrically connected. The portable image processing device of claim 9, wherein the memory module further records corresponding data of the plurality of control commands corresponding to the plurality of touch signals. The portable image processing device of claim 10, wherein the memory module further records display specifications corresponding to different displays. The portable image processing device according to claim 9, wherein the audio processing unit is a software module that adjusts an image size, a resolution, an update frequency, and a color of the video signal according to a display specification of the display. The portable image processing device of claim 9, wherein the wireless communication module is configured to process a signal conforming to a wireless high definition multimedia interface specification and thereby connect the display. The portable image processing device of claim 13, wherein the display is an electronic device having wireless communication capability. The portable image processing device of claim 9, wherein the portable image processing device is a tablet computer loaded with a touch panel, a control program, and a wireless communication function and video and audio conversion. A portable image processing system includes: a host for providing streaming audio and video content; a display having wireless video and audio receiving capability; and a portable image processing device for connecting the host by a wireless network, receiving the a video signal transmitted by the host, and transmitting the video signal to the display by a wireless video transmission device, the portable image processing device comprising: a central processing unit for processing signals in the portable image processing device; The memory module of the signal processed by the central processing unit is electrically connected to the central processing unit; a display unit for displaying audio and video and control pictures is electrically connected to the central processing unit; and a wireless network module The portable video processing device obtains the video signal through the network through the wireless network module, and is electrically connected to the central processing unit; a video processing unit that processes the audio and video signal, electrically connected to the central processing unit; and a wireless communication module The portable audio and video processing device is connected to the display through the wireless communication module, and transmits the video signal, and the electrical connection The central processing unit; a touch module that generates a touch signal according to the touch behavior, is electrically connected to the central processing unit; and an instruction recognition unit that recognizes the touch signal as a control command, and electrically connects the central unit Processing unit. The portable image processing system of the portable image processing device, wherein the image processing unit of the portable image processing device adjusts an image size, a resolution, and an update frequency of the video signal according to a display specification of the display. Software module with color. The portable image processing system of claim 16, wherein the portable image processing device is connected to the display in a wireless high definition multimedia interface specification. The portable image processing system of claim 18, wherein the display is an electronic device having wireless communication capability. The portable image processing system of claim 18, wherein the portable image processing device is a tablet computer loaded with a touch panel, a control program, and a wireless communication function and video and audio conversion.