Audio-video playing system and method based on electronic whiteboard
An audio and video playback, electronic whiteboard technology, applied in the audio and video field, can solve problems such as increasing workload and difficulty in work
Inactive Publication Date: 2013-05-29
北京中科昊普科技有限公司
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Problems solved by technology
This undoubtedly increases the workload and difficulty of the work. Because USB is restricted by the USB protocol, the cable over five meters needs to be designed separately, but the application environment sometimes exceeds this length (for example, in the lecture hall, if the electronic whiteboard is placed on the podium One side, plus the consideration that the wiring needs to bypass the walking route)
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0019] figure 1 It is a schematic diagram of an audio and video playback system based on an electronic whiteboard according to an embodiment of the present invention; figure 1 As shown, the device includes: a storage unit 10, a transmitting board 20, a receiving board 30, a projector 40 and an electronic whiteboard 50, wherein
[0020] The transmitting board 20 is connected with the storage unit 10, the receiving board 30 is respectively connected with the pr...
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The invention discloses an audio-video playing system and method based on an electronic whiteboard. The audio-video playing method includes steps that: wireless audio-video data transmission is constructed between a storage unit and the electronic whiteboard, wherein the storage unit is connected with a transmitting board, the electronic whiteboard is connected with a receiving board, the transmitting board and the receiving board are in wireless connection, the receiving board is connected with a projector, and the projector projects images on the electronic whiteboard; a touch screen of the electronic whiteboard receives single-point or multi-point touch or writing of users, operations of the users are converted to coordinate signals and wirelessly transmitted to the transmitting board through the receiving board, and the transmitting board transmits the received signals to the storage unit for analyzing; and the storage unit takes corresponding audio-video data, the transmitting board wirelessly transmits the audio-video data to the receiving board, and the projector decodes the data and then projects the data on the electronic whiteboard for playing.
Description
technical field [0001] The present invention relates to the field of audio and video, in particular to an audio and video playing system and method based on an electronic whiteboard. Background technique [0002] In recent years, the application of electronic whiteboards in teaching has become more and more popular, and the interactive convenience brought by electronic whiteboards has also been widely recognized. As we all know, the electronic whiteboard system is composed of a projector / short-focus projector / ultra-short-focus projector and a whiteboard with touch sensing (resistive / capacitive / ultrasonic / infrared and other technologies). Model I in this product is to solve the wireless connection problem of the electronic whiteboard system formed by short-focus projection or ultra-short-focus projection and touch (including several technologies such as resistance / capacitance / ultrasonic / infrared rays) whiteboard. [0003] In the current electronic whiteboard system applicati...
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Login to View More IPC IPC(8): G09B5/06H04N7/18H04N5/76
Inventor 田国强
Owner 北京中科昊普科技有限公司