Transmission method and system of sound channel information
An information transmission system and information transmission technology, which is applied in the field of audio processing and communication, can solve the problems of unable to support the long-distance and large-capacity information transmission requirements of notebook computers, short transmission distance, and small amount of information transmitted by the acoustic carrier.
Inactive Publication Date: 2015-06-10
INST OF INFORMATION ENG CHINESE ACAD OF SCI
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Problems solved by technology
[0004] However, this voice interaction technology, the amount of information transmitted by the acoustic carrier is small, the transmission distance is short, and it cannot support the long-distance and large-capacity information transmission requirements between electronic terminals such as laptop computers.
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[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0044] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be unders...
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The invention relates to a transmission method of sound channel information and a transmission system of the sound channel information. The method comprises the following steps: S1, detecting working frequency scale of an audio sending device of a sending terminal; S2, If there is an intersected frequency scale between the working frequency scale and the preset frequency scale, coding the source information to be a digital signal, modulating the digital signal to an audio carrier within the intersected frequency scale, and sending the modulated signal to a receiving terminal through the sending terminal; demodulating and coding the received audio signal by the receiving terminal, and obtaining the source information. Through the technical scheme of the transmission method and system, signal an be modulated and emitted to the audio carrier with high frequency section from 15 kHz and 18 kHz; on the one hand, it avoids the interference to surrounding people by hearable noise generated by emitting at the low frequency section; on the other hand, it avoids the interference to the transmission signal by the existing low frequency noise in the environment, and improves the accuracy of signal transmission.
Description
technical field [0001] The present invention relates to the technical field of audio processing and communication, in particular to an acoustic channel information transmission method and an acoustic channel information transmission system. Background technique [0002] With the rapid development of modern communication technology and computer network technology, the transmission of information between computers is generally carried out through the network. The network uses optical fiber, cable, telephone line or wireless communication to enable many computers to transmit information to each other conveniently. In addition, various mobile storage media such as CDs, U disks, mobile hard disks, etc. also provide a way for computers to transmit information through data reading and writing. However, without the help of the network and all external devices, the information transmission channels between computers are very limited. [0003] Using sound waves for information trans...
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IPC IPC(8): H04B11/00
Inventor 孙德刚王晶晶石珺韦迪
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI