TW201532432A - Electronic device and video/audio playing control method - Google Patents

Abstract

Electronic device and method for controlling video/audio playing system are disclosed. The method for controlling video/audio playing system includes following steps: establishing a wireless communication architecture between the electronic device and a receiving end device; transmitting a video/audio data via the wireless communication architecture; and, receiving or transmitting a control signal via a video/audio control signal transmitting channel of the wireless communication architecture.

Description

Electronic device and video playback control method

The present invention relates to an electronic device and a video playback control method, and more particularly to an electronic device and a video playback control method for transmitting or receiving a video control signal by using a video control signal transmission channel of a wireless communication architecture.

With the development of audio and video systems, in addition to traditional television sets, audio and video playback systems include more and more audio and video devices, such as digital set-top boxes, DVD players, stereos and so on. These audio and video devices are basically connected through an HDMI interface (high resolution multimedia interface) signal to form an audio and video playback environment. In order to integrate and control various audio and video devices in the audio and video playback environment, in the HDMI interface (high resolution multimedia interface), the control signals set in the Consumer Electronics Control (CEC) format are integrated to integrate the audio and video devices. The user can control each audio-visual device through a single control device, eliminating the need for the user to find out the time corresponding to the remote control device of the audio-visual device. For example, when the disc player is connected to the TV via the HDMI interface, and then in compliance with the Consumer Electronic Control Standard (CEC) mechanism, the user can directly control the disc player with the TV remote control.

With the development of wireless audio and video transmission, it has become more and more common to use wireless transmission architecture to transmit audio and video files. However, the current development focus of wireless transmission architecture is still mainly focused on audio and video file transmission, integration of human-machine interface and device. Control functions, etc., are not particularly inked, so if the electronic device itself is not connected to a television or other audio-visual device through the HDMI interface, the user cannot directly control the electronic device through the Consumer Electronic Control Standard (CEC), resulting in use. The electronic device must be manipulated separately, which is not convenient in use, so it is necessary to improve.

The main object of the present invention is to provide an electronic device for transmitting or receiving video and audio control signals by using a video control signal transmission channel of a wireless communication architecture.

Another main object of the present invention is to provide a video playback control method for transmitting or receiving video and audio control signals by using a video control signal transmission channel of a wireless communication architecture.

To achieve the above objective, the electronic device of the present invention is connected to a receiving device via a wireless communication architecture signal, wherein the wireless communication architecture includes a video control signal transmission channel. The electronic device includes a first wireless transmission/reception module, a first signal format conversion module, and a first controller. The first wireless transmission/reception module is configured to transmit a video and audio data to the receiving device, and receive or transmit an audio and video control signal through the audio and video control signal transmission channel. The first signal format conversion module signal is connected to the first wireless transmission/reception module to receive the video and audio control signal, and converts the video control signal into a first video control signal. The first controller signal is connected to the first signal format conversion module to receive the first video control signal and perform corresponding operations according to the first video control signal.

The present invention further provides an audio and video playback control method, which is applied to an electronic device, so that the electronic device can be connected to a receiving end device through a wireless communication architecture signal. The wireless communication architecture includes a video and audio control signal transmission channel, and the video and audio playback control method includes the following: Step: establishing a wireless communication architecture between the device and the receiving device; transmitting the audio and video data to the receiving device through the wireless communication architecture; and transmitting or receiving an audio and video control signal through the video control signal transmission channel.

By using the audio and video control signal transmission channel of the wireless communication architecture to transmit or receive the video and audio control signals, the devices that are not originally connected by the HDMI interface signal can also be controlled by the CEC format control signal to increase the practicality of the electronic device. The operation and convenience of the audio and video playback system.

In order to enable the reviewing committee to better understand the technical contents of the present invention, the preferred embodiments are described below.

Please refer to FIG. 1 for a hardware architecture diagram of an embodiment of an electronic device of the present invention. The electronic device 10 of the present invention is connected to a receiving device 20 via a wireless communication architecture 200. The wireless communication architecture 200 includes an audio and video control signal transmission channel 210 and an audio and video signal transmission channel 220. The electronic device 10 of the present invention can be a notebook type. A device such as a computer, a desktop computer, a smart phone, or a tablet computer, and the present invention is not limited thereto, and the electronic device 10 of the present invention can be applied to other electronic devices having wireless transmission functions. The receiving device 20 is a display in this embodiment and has an HDMI interface (high resolution multimedia interface). The wireless communication architecture 200 of the present embodiment is a Miracast wireless transmission architecture, and the signal transmission channel 210 is a user input back channel (UIBC), wherein the UIBC is designed for transmitting various types of users in the Miracast wireless transmission architecture. Enter the transmission channel of the data.

As shown in FIG. 1 , in an embodiment of the present invention, the electronic device 10 includes a first wireless transmission/reception module 11 , a first signal format conversion module 12 , and a first controller 13 , wherein the first wireless transmission The receiving module 11 is a Wi-Fi module. The first WTRU 11 transmits a video data 100 to the receiving device 20, and receives or transmits the video control signals 300, 300a through the video control signal transmission channel 210. It should be noted that the video control signals 300 and 300a of the present invention are in the Consumer Electronics Control (CEC) format, wherein the CEC format is a universal format of the HDMI interface, and the audio and video control signals are used without the HDMI interface connection. Transmission channel 210 transmits or transmits CEC format commands to control the functionality of other devices. The CEC format is a conventional technique, so it will not be further described.

The first signal format conversion module 12 is separately connected to the first wireless transmission/reception module 11 and the first controller 13. The first signal format conversion module 12 is configured to receive the video and audio control signal 300, and convert the video control signal 300 from the CEC format to the first video control signal 310 applied by the first controller 13, so that the first controller 13 receives the first The video control signal 310 performs corresponding operations according to the first video control signal 310. It should be noted that the first signal format conversion module 12 stores conversion data for converting the control signal of the CEC format into a format used by the embedded controller, as the basis of the signal format conversion, and the first signal format conversion mode. The group 12 can be an application, a hardware chip with a signal format conversion function, or a combination of the two. The first controller 13 is an embedded controller (EC), but the present invention does not The examples are limited.

Please refer to FIG. 2, which is a flow chart of steps of an embodiment of the video and audio playback control method of the present invention. It should be noted that the video playback control method of the present invention is described below with reference to the electronic device 10 shown in FIG. 1. However, the present invention is not limited thereto, and any electronic device having a wireless transmission architecture or function can be applied. The video and audio playback control method of the present invention. As shown in FIG. 2, the stylus interaction method of the present invention includes steps S1 to S8. The various steps of the method are described in detail below.

Step S1: Establish a wireless communication architecture between the device and the receiving device.

When the user wants to use the electronic device 10 to perform the video and audio playback control method of the present invention, the first wireless transmission/reception module 11 is first connected to the second wireless transmission/reception module 21 of the receiving device 20 to establish an electronic device. The wireless communication between the device 10 and the receiving device 20 causes the electronic device 10 to transmit video data or control signals. In this embodiment, the electronic device 10 is a notebook computer, the receiving device 20 is a television display screen, and the wireless communication architecture 200 is a Miracast wireless transmission architecture.

Step S2: transmitting the video and audio data to the receiving device by using a wireless communication architecture.

After the wireless communication architecture between the electronic device 10 and the receiving device 20, the first wireless transmitting/receiving module 11 transmits the audiovisual data 100 (eg, a movie file) through the audio signal transmission channel 220 in the wireless communication architecture 200. To the receiving device 20. The receiving device 20 is received by the second wireless transmission/reception module 21, and the second controller 22 displays the file on the display screen for the user to view.

Step S3: The electronic device transmits or receives the video and audio control signal?

When the electronic device 10 receives the video control signal 300 through the video control signal transmission channel 210, step S4 is performed. When the electronic device 10 transmits the video control signal 300a through the video control signal transmission channel 210, step S7 is performed.

Step S4: receiving the video and audio control signal.

During the viewing of the movie, the user may use the controller of the receiving device 20, such as a TV remote controller, to control the playing function of the audio and video player in the electronic device 10, such as: fast forward, slow turn, video playback, etc. The present invention defines such video and audio control as the video control signal 300. When the user uses the controller of the receiving device 20 to send the video control signal 300, the receiving device 20 first converts the video control signal 300 into the CEC format, and then controls the video and audio through the audio and video control signal transmission channel 210 in the wireless communication architecture 200. The signal 300 is transmitted to the electronic device 10. This embodiment is a user input back channel (UIBC).

Step S5: Converting the video control signal into the first video control signal.

After receiving the audio and video control signal 300 of the CEC format, the first wireless transmission/reception module 11 transmits the video control signal 300 to the first signal format conversion module 12, so that the first signal format conversion module 12 performs signal format conversion. The video control signal 300 is converted from the CEC format to the first video control signal 310, that is, the signal format applicable to the first controller 13, so as to control the video player in the electronic device 10.

Step S6: Perform a corresponding operation according to the first video control signal.

After the first signal format conversion module 12 converts the video control signal 300 from the CEC format to the first video control signal 310, the first video control signal 310 is transmitted to the first controller 13 so that the first controller 13 A video control signal 310 performs a corresponding operation, such as: controlling the audio and video playing program of the electronic device 10, allowing the movie to rotate, slow, and play back.

Step S7: Convert the second video control signal into a video control signal.

On the other hand, during the viewing of the movie, the user may directly use the input device (such as a mouse or a keyboard) of the electronic device 10 to control the video player in the electronic device 10, so that the movie is fast and slow. Image playback. At this time, the first controller 13 first transmits the second video control signal 320 sent by the input device (mouse or keyboard) of the electronic device 10 to the first signal format conversion module 12 for the first signal format conversion module. 12 performs signal format conversion to convert the second video control signal 320 into the video control signal 300a (CEC format).

Step S8: transmitting the video control signal through the video control signal transmission channel.

After converting the second video control signal 320 to the video control signal 300a (CEC format), the first signal format conversion module 12 transmits the video control signal 300a to the first wireless transmission/reception module 11 and through the wireless communication architecture 200. The video control signal transmission channel 210 transmits the video and audio control signal 300a to the receiving device 20, and the receiving device 20 performs the corresponding operation.

By using UIBC to transmit the control signal design of the CEC format, the devices that are not connected by the HDMI interface signal can also be controlled by the CEC format control signal to increase the practicality of the electronic device and the operation convenience of the audio and video playback system. Sex.

It should be noted that the above is only an embodiment, and is not limited to the embodiment. Therefore, those who do not depart from the basic structure of the present invention should be bound by the scope of the patent, and the scope of the patent application shall prevail.

10‧‧‧Electronic devices
100‧‧‧ audio and video materials
11‧‧‧First wireless transmission/reception module
12‧‧‧First Signal Format Conversion Module
13‧‧‧First controller
20‧‧‧ Receiving device
21‧‧‧Second wireless transmission/reception module
22‧‧‧Second controller
200‧‧‧Wireless communication architecture
210‧‧‧Video Control Signal Transmission Channel
300, 300a‧‧‧ audio and video control signals
310‧‧‧First video control signal
320‧‧‧Second video control signal
220‧‧‧Video signal transmission channel

1 is a hardware architecture diagram of an embodiment of an electronic device of the present invention. 2 is a flow chart showing the steps of an embodiment of the video and audio playback control method of the present invention.

Step S1 to step S8

Claims (8)

An electronic device is connected to a receiving device via a wireless communication architecture signal, wherein the wireless communication architecture includes a video and audio control signal transmission channel, and the electronic device includes: a first wireless transmission/reception module for transmitting a And receiving audio-visual data to the receiving device, and receiving or transmitting an audio-visual control signal through the audio-visual control signal transmission channel; a first signal format conversion module, wherein the signal is connected to the first wireless transmission/reception module to receive the And the video control signal is converted into a first video control signal; and a first controller is connected to the first signal format conversion module to receive the first video control signal and according to the The first video control signal performs the corresponding operation. The electronic device of claim 1, wherein the video control signal is a Consumer Electronics Control (CEC) format. The electronic device of claim 2, wherein the wireless communication architecture is a Miracast wireless transmission architecture; the signal transmission channel is a user input back channel (UIBC). A video playback control method is applied to an electronic device, such that the electronic device is connected to a receiving device through a wireless communication architecture signal, wherein the wireless communication architecture includes a video and audio control signal transmission channel, and the video playback control method includes the following steps. Establishing the wireless communication architecture with the receiving device; transmitting, by the wireless communication architecture, a video and audio material to the receiving device; and transmitting or receiving an audio and video control signal through the video control signal transmission channel. The video playback control method of claim 4, wherein the electronic device comprises a first wireless transmission/reception module, a first signal format conversion module, and a first controller, and the electronic device When the video control signal is received by the video control signal transmission channel, the video playback control method further includes the following steps: the first wireless transmission/reception module receives the video control signal by using the video control signal transmission channel; The first signal format conversion module converts the video control signal into a first video control signal; and the first controller performs a corresponding operation according to the first video control signal. The video playback control method of claim 4, wherein when the electronic device transmits the video control signal through the video control signal transmission channel, the video playback control method further comprises the following steps: The first signal format conversion module converts a second video control signal into the video control signal; and the first wireless transmission/reception module transmits the video control signal by using the video control signal transmission channel. The video playback control method according to claim 6, wherein the video control signal is a Consumer Electronics Control (CEC) format. The video playback control method according to claim 7, wherein the wireless communication architecture is a Miracast wireless transmission architecture; the signal transmission channel is a user input back channel (UIBC).