06184937 is referenced by 61 patents and cites 14 patents.

A system and method (

40

) of altering the audio portion of a live television broadcast signal substantially in real time. The system is used to enhance the effects of live video insertion systems. The broadcast signal is received and separated into a pattern recognition unit (

72

) in order to recognize predetermined events. The broadcast audio is then altered based on the occurrence of said events. Alterations (

68, 70

) include modifications to attributes such as volume, tone, pitch, synchronization, echo, reverberation, and frequency profile. Once altered, the audio is re-synchronized (

80

) with the video channel which has undergone its own modification.

Title
Audio enhanced electronic insertion of indicia into video
Application Number
9/171941
Publication Number
6184937 (B2)
Application Date
October 29, 1998
Publication Date
February 6, 2001
Inventor
Roy J Rosser
Princeton
NJ, US
Brown F Williams
Princeton
NJ, US
Agent
Woodbridge & Associates P C
US
Agent
Richard C Woodbridge
US
Assignee
Princeton Video Image
NJ, US
IPC
H04N 9/475
View Original Source