Multi-channel infrared system and infrared parameter setting method thereof
An infrared system, multi-channel technology, applied in the field of infrared signal processing, can solve problems such as mutual interference, inability to watch, 3D glasses out of sync, etc.
Active Publication Date: 2014-06-18
SHENZHEN TCL DIGITAL TECH CO LTD
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Problems solved by technology
However, the glasses infrared system of 3D TV is a continuous, real-time and uninterrupted transmission and reception. If the same infrared wavelength or carrier frequency is used with the local remote control system, it is very easy to cause mutual interference between the two
On the one hand, the field synchronous infrared emission system of the 3D TV will interfere with the local remote control system and other infrared devices, causing the remote control to fail or other infrared devices to work abnormally; on the other hand, the original local infrared remote control system of the 3D TV or other infrared devices The remote control of the device is also likely to cause interference to the infrared receiving system of the 3D glasses, causing the 3D glasses to be out of sync, causing the glasses to flicker, affecting the 3D viewing effect, or even unable to watch
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[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0033] The technical solution provided by the present invention is: by configuring different infrared emission wavelengths and carrier modulation frequencies for multiple infrared emission and reception channels in the same device, so that the infrared emission and reception channels can be distinguished in terms of spectrum and carrier frequency, so as to avoid mutual interference.
[0034] refer to figure 1 , the preferred embodiment of the multi-channel infrared system of the present invention is a 3D TV 10, the 3D TV 10 includes a processor 12, an infrared receiving module 14, a parameter sett...
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The invention provides a multi-channel infrared system which comprises an infrared receiving module used for receiving infrared signals through a first infrared channel, and is characterized by also comprising at least one infrared transmitting module and a corresponding parameter setting module, wherein the infrared transmitting module is used for transmitting infrared signals through a corresponding second infrared channel, and the parameter setting module is used for setting the infrared parameter for the second infrared channel corresponding to the infrared transmitting module. The multi-channel infrared system is provided with different infrared parameters, thus multiple infrared channels are not interfered mutually, and the infrared signals can be transmitted normally.
Description
technical field [0001] The invention relates to infrared signal processing technology. Background technique [0002] Infrared rays are characterized by non-penetration and strong directivity, and are not easy to affect the surrounding environment, so they are widely used in household appliances suitable for point-to-point and short-distance remote control. Common household appliances, such as TV sets, set-top boxes, air conditioners, DVDs, etc., all use infrared remote control. Infrared remote control technology also has the advantages of simple circuit debugging and low cost. [0003] In common household appliances, the infrared system usually only has one infrared signal, that is, one infrared channel, using one wavelength and carrier frequency, but in systems such as shutter glasses 3D TV, multiple sets of infrared systems are often required to complete the transmission of remote control signals And the transmission of the field synchronization signal, because in the shu...
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IPC IPC(8): H04N13/00G08C23/04
Inventor 杨福军张晓东
Owner SHENZHEN TCL DIGITAL TECH CO LTD