Coding method for television signal

Abstract

Abstract PURPOSE:To prevent a picture from being damaged significantly in case of the absence of a synchronizing word or address word, by synchronizing words and address words into bit patterns having the least balanced DC components. CONSTITUTION:An input analog television signal is supplied through a sampling circuit 2 to a coder 3, which converts each sample into a PCM code also resulting to obtain an 8-bit data word. This data word is supplied to a block memory 4. The data word is also supplied to a digital synchronizing word generator 5 and also supplied to an address word generator 6; a synchronizing word from the generator 5 is supplied to the block memory 4, and an address word from the generator 6 is suuplied to the block memory 4 through an encoder 7. The block memory 4 adds the balanced synchronizing word and balanced address word to a data block.

Inventors

• 👤 Hetsudorei Uirukinson Jieemusu
• 👤 ジエ−ムス・ヘツドレイ・ウイルキンソン

Bibliographic Details