Method and apparatus for transmitting a signal, method and...

Details Method and apparatus for transmitting a signal, method and... Method and apparatus for transmitting a signal, method and...

2007-06-26

2007-06-26

Tran, Thai Q. (Department: 2621)

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

C386S349000, C386S349000, C386S349000, C360S060000, C380S201000, C380S204000, C705S059000

Reexamination Certificate

active

09841845

ABSTRACT:
Additional information is transmitted by means of assigning a code to a particular scanning line in a VBI (vertical blanking interval). An initial value of a CRCC (Cyclic Redundancy Check Code) or a formula used to generate a CRCC is switched depending upon the type of additional information inserted in a data frame so that a difference in the initial value causes additional information other than CGMS-A (Copy Generation Management System-Analog) to be regarded as invalid, and thus the additional information does not cause an erroneous operation. However, CGMS-A has to be transmitted in the same manner in any country. To meet this requirement, the same initial value is used when CGMS-A is transmitted. This makes it possible to transmit data in a peculiar format without causing a problem regardless of a country in which transmission is performed. Besides, it is possible to transmit CGMS-A in the same manner regardless of the country.

REFERENCES:
patent: 5418853 (1995-05-01), Kanota et al.
patent: 5673357 (1997-09-01), Shima
patent: 5710771 (1998-01-01), Ueno
patent: 5822425 (1998-10-01), Ezaki et al.
patent: 6750917 (2004-06-01), Yamada et al.

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