Patent ID: 6072532
Filing Date: 2000-06-06
Classification: H04N

Abstract:
A system for manipulating and de-manipulating Vertical Blanking Interval (VBI) data having an original format, comprising in combination:a. an encoder coupled to receive said VBI data having said original data format and to manipulate said original VBI format into a general VBI format;b. a transmission medium operatively connected to said encoder to receive said VBI data having said general VBI format; andc. a decoder coupled to receive said VBI data having said general VBI format from said transmission medium and to de-manipulate said general VBI format of said VBI data into said original VBI format, said encoder comprisinga. a synchronization circuit coupled to receive said VBI data having said original format to produce synchronization information,b. a data slicer coupled to receive said synchronization information and said VBI data having said original format to demodulate said VBI data having said original format in accordance with said synchronization information and producing a demodulated signal, andc. a formatter coupled to receive said demodulated signal to convert said demodulated signal into said VBI data having said general VBI data format.