Title:
【発明の名称】ビデオ信号の閲覧可能部分においてデータを送信する方法
Document Type and Number:
Japanese Patent JP2003505952
Kind Code:
A
Abstract:
A method of encoding data (21) in the visible portion of a transmitted video signal (11) without degrading display of the received video signal, and for decoding (11) the data in the received video signal (13). Each group of data bits to be transmitted, referred to a data symbol (21), is associated with o ne of a number of longer predetermined sequences of chips (23). Each chip sequence is divided into a multiplicity of lines of chips (23), and each lin e of chips together with its inverse are embedded, in pairwise fashion, in respective pairs of line operated upon to detect the lines of chips they represent, and each of the number of chip sequences is correlated with the detected line of chips to derive a correlation magnitude. The chip sequence with the largest correlation magnitude is selected as the chip sequence whos e data symbol was transmitted.
Inventors:
Siaduro, Daniel Andrew
Cosbar, Kurt Lewis
Chap, Christopher Eric
Cosbar, Kurt Lewis
Chap, Christopher Eric
Application Number:
JP2001511099A
Publication Date:
February 12, 2003
Filing Date:
July 14, 1999
Export Citation:
Assignee:
Copler Interactive Systems International
International Classes:
H04N7/08; H04B15/00; H04K1/02; H04L7/08; H04N7/081; (IPC1-7): H04N7/08; H04N7/081
Attorney, Agent or Firm:
Soga Doteru (6 people outside)