Patent ID: 8130263

Claim:
A analog signal model of head mounted visual display device for low-vision aid, including at least: an analog video extractor that captures analog video signal of video data; a video decoder that receives the analog video signal from the video extractor and extract the analog video signal from the video; a ITU-R.656 decoder that receives the analog video signal extracted from the video decoder and converts the analog video signal into digital video signal; a de-interlacing unit that receives the digital video signal converted by the ITU-R.656 decoder and de-interlace the digital video signal so that the signal will appear in sequence; a wireless communication unit that provides digital signal of information on internet using wireless internet access; a video processor that receives the digital video signal of information on internet that is provided by the wireless communication unit and is de-interlaced by the de-interlacing unit, filters the received digital video signal into an enhanced digital video signal and then set the bidirectional output of the digital video signal; two YCbCr to RGB converters that simultaneously receive the two digital video signals of the bidirectional output from the video processor and convert the YCbCr signal from the two digital video signal into RGB signal; two color enhancement units that simultaneously receive the RGB digital video signals converted by the two YCbCr to RGB converters and enhance the color contrast of the digital signals; two digital/analog (D/A) converters that simultaneously receive the two color-contrast-enhanced digital video signal from the two color enhancement units and convert to digital or analog according to the display unit; a head mounted display unit that simultaneously receives the two analog signals converted by the two D/A converters or the digital signals and provides simultaneously the video of the two video signals; a signal voltage controller with bi-directional electrical connection to the video decoder provides the signal control (I 2 C) of the circuit system bus and the detection of voltage, when a low-voltage is detected, a alerting signal is sent to the head mounted display unit and the circuit system.