Patent ID: 9179136
Filing Date: 2015-11-03
Classification: H04N

Abstract:
1. A method for communication in a 3D video viewing shutter device that is wirelessly coupled to a 3D video display device, the method comprising: generating a slave clock based on a master clock generated in said 3D video display device; maintaining synchronization of said slave clock with said master clock; receiving, from said 3D video display device, a time interval associated with display of 3D video frames and a time offset with respect to said time interval for delaying opening and/or closing of left and/or right shutters of said 3D video viewing shutter device, said time interval being based upon a frame synchronization signal generated by said 3D video display device, said frame synchronization signal being at a positive value of a square wave indicating a left frame is to be displayed by said 3D video viewing shutter device or at a negative value of said square wave indicating a right frame is to be displayed by said 3D video viewing shutter device; and opening and/or closing said left and/or right shutters of said 3D video viewing shutter device to correspond to a time of said display of said 3D video frames based on said generated slave clock, said time interval, and said time offset.