Optical communication transmission and reception device and method, and optical communication system and method
A transmission device and optical communication technology, applied in image communication, TV system components, free space transmission, etc., can solve the problems of low frame rate of image sensor, low bandwidth of LED, etc.
Active Publication Date: 2017-10-27
IND TECH RES INST
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Problems solved by technology
However, the frequency response of the LED has a low bandwidth, and the image sensor has a low frame rate due to the shared ADC
Therefore, there are still many challenges for the solution of high data transmission rate of visible light communication
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Embodiment Construction
[0073] Embodiments of the present invention provide an optical communication technology that increases a data transmission rate (data rate). This technique detects optical regions of interest (ROIs) and drastically reduces the sampling rate of one or more shared ADCs in the image sensor. Once the receiver determines the ROI, the ADC can only be used for pixels in the region of interest. Compared with the existing optical communication technology, the embodiment of the present invention can greatly increase the frame rate, and can also greatly reduce the acquisition time for performing optical communication. To accomplish this feature, a transmitter can emit light in one or more patterns, and the one or more patterns can form one or more shapes to determine the reference area. This emitted light can be, but is not limited to, X-rays, ultraviolet light, visible light, or from 10 9 Hz to 10 19 Infrared rays in the Hz frequency range. The transmitter can then transmit a signal...
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The invention provides an optical communication transmitting and receiving device and method, and an optical communication system and method. According to an embodiment, an optical communication system includes a transmitting device and a receiving device. The transmission device generates one or more patterns of light to determine at least one reference area, and transmits signals by emitting light in the at least one reference area determined by the one or more patterns. the receiving device detects the one or more patterns of light by taking fewer measurements than a total number of pixels in a sensed image, and determines at least one region of interest based on the one or more detected patterns, and then Optical communications are processed using all signals of light in the at least one region of interest, and a smaller number of measurements than a total of pixels in the at least one tracking region are taken to track the one or more patterns of light emitted by the delivery device.
Description
technical field [0001] The invention relates to an optical communication transmission and reception device and method, and an optical communication system and method. Background technique [0002] Optical communication is a wireless communication technology that uses light to communicate, where the light can be sensed by one or more photo diodes, or an image sensor. For example, the light can be, but is not limited to, X-rays, ultra-violet light, visible light, or from 10 9 Hz to 10 19 Infrared (infrared) in the frequency range of Hz. Radio wave (RF) bandwidth is a precious resource. Therefore, optical communication can provide an alternative technology to wireless communication that meets strong demand. For example, visible light emitted from one or more light-emitting diodes (LEDs) is widely used in homes and offices, so it makes visible light emitted from one or more LEDs sufficient for ubiquitous data transmitters . Cameras are already commonly used in cell phones,...
Claims
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IPC IPC(8): H04N19/00H04N5/378H04B10/11
Inventor 陈佳蘋萧昌龙陈仁智
Owner IND TECH RES INST