Patent ID: 8340529
Filing Date: 2012-12-25
Classification: G09G,H04N

Abstract:
1. An active high definition multimedia interface (HDMI) cable connection for transmitting a plurality of transition modified data signals (TMDS) associated with audio and video information (TMDS 0 , TMDS 1 , TMDS 2 ), a TMDS clock signal and associated control and power signals, the active HMDI cable connection comprising: a phase alignment element responsive to the plurality of TMDS information signals and the TMDS clock signal to generate a plurality of phase-aligned information signals; an optical modulator responsive to the plurality of phase-aligned information signals generated by the phase alignment element to create a phase-amplitude modulated (PAM) optical information signal representative of the plurality of TMDS information signals; a single optical fiber coupled at a first end thereof to the output of the optical modulator for supporting the propagation of the PAM optical information signal therealong; a plurality of electrical signal conductors for transmitting the TMDS clock signal and a plurality of HMDI electrical control signals; an optical-to-electrical (O/E) conversion element coupled to a second, opposing end of the single optical fiber for receiving the propagating PAM optical information signal and converting the received PAM optical information signal into an electrical representation; an analog-to-digital conversion (ADC) element responsive to the electrical representation of the PAM optical signal and the received TMDS clock signal to recover therefrom the phase-aligned information signals; and a plurality of TMDS driver elements responsive to the phase-aligned information signals to generate the TMDS information signals.