Interactive video distribution systems – Program – message – or commercial insertion or substitution – Insertion of local commercial or local program at headend or...
Reexamination Certificate
2001-06-18
2009-10-06
Shang, Annan Q (Department: 2424)
Interactive video distribution systems
Program, message, or commercial insertion or substitution
Insertion of local commercial or local program at headend or...
C725S040000, C725S060000, C709S217000
Reexamination Certificate
active
07600239
ABSTRACT:
A method and system are provided which allow for automatic execution of applications on a receiving station (109). As applications may provide their own interface, this interferes with the desired consistent interface a user has when “zapping” from channel to channel. Therefore, execution of applications is disabled when a user selects a channel, and enabled whenever it is determined that the user is actively viewing the selected channel. This happens when, for example, the channel identifier (202) is removed from the screen, or the last element of a menu bar (203) or other on-screen display element is erased. A timer, reset whenever the user provides input, and increased every second, can also be used. When the timer exceeds a certain value, it can be assumed the user wants to view the selected channel, and application execution can be enabled.
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J.Muhlbach, “Open TV—Vom Pionier Zum Marktfuhrer”.
De Lange Alphonsius Anthonius Jozef
Schlueper Marcus Franciscus Maria
Wijma Abel Koenraad
Koninklijke Philips Electronics , N.V.
Shang Annan Q
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