Patent ID: 9042437
Filing Date: 2015-05-26
Classification: G09G,H04L

Abstract:
1. A method for improving signal quality in an active HDMI cable connecting a source device that will actually be used with the cable as installed to a sink device that will actually be used with the cable as installed, comprising: a. providing an active HDMI cable, including, b. providing a programmable equalizer in said active HDMI cable proximate said sink connector, said programmable equalizer including, c. providing a measurement unit configured to measure a signal on each of said TMDS conductors proximate said sink connector; d. providing a microcontroller connected to said programmable equalizer, said microcontroller having the ability to set said programmable parameters for each of said equalizers, said microcontroller having an associated memory storing a predefined set of performance criteria for each of said TMDS conductors; e. connecting said source connector in said active HDMI cable to said source device and said sink connector to said sink device; f. activating said source device and said sink device so that signals from said source device are sent through said active HDMI cable and received by said sink device; g. while said signal is passing through said active HDMI cable from said source device to said sink device, using said measurement unit to measure a signal on each of said TMDS conductors; h. using said microcontroller in said programmable equalizer to vary said set of programmable parameters in order to vary the gain in each of said equalizers while said measurement unit measures an output signal emerging from each of said equalizers in order to determine an optimum configuration for all of said programmable parameters; i. using said microcontroller to set said optimum configuration for all of said programmable parameters; j. determining a total amount of power available for said equalizers by,