Monitoring apparatus

Television – Monitoring – testing – or measuring – Transmission path testing

Reexamination Certificate

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Details

C348S193000

Reexamination Certificate

active

07605843

ABSTRACT:
A monitoring method for monitoring a video/audio signal transmitted from a transmission source to a transmission destination has a step of storing the video/audio signal transmitted from the transmission source to the transmission destination repeatedly for a predetermined time period, a step of comparing a first characteristic amount extracted from the video/audio signal before the transmission and a second characteristic amount extracted from the video/audio signal after the transmission in real time, a step of determining an error occurrence when there is a difference of a predetermined value or more between the first characteristic amount and the second characteristic amount, and a step of transmitting the stored video/audio signal to a predetermined destination when an error occurrence is determined.

REFERENCES:
patent: 5473361 (1995-12-01), Penney
patent: 6246435 (2001-06-01), Patel
patent: 6496221 (2002-12-01), Wolf et al.
patent: 6943827 (2005-09-01), Kawada et al.
patent: 7154533 (2006-12-01), Sheldon et al.
patent: 7161617 (2007-01-01), Moote et al.
patent: 7385627 (2008-06-01), Sugimoto et al.
patent: 7478004 (2009-01-01), Chan et al.
patent: 2002/0184645 (2002-12-01), Austin et al.
patent: 2007/0088516 (2007-04-01), Wolf et al.
patent: 2003-204562 (2003-07-01), None
English Patent Abstract of JP2003204562, from esp@cenet, published on Jul. 18, 2003, 1 page.

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