Multiplex communications – Communication over free space – Repeater
Reexamination Certificate
2005-12-27
2005-12-27
Lee, Andy (Department: 2663)
Multiplex communications
Communication over free space
Repeater
C370S325000, C455S003020, C725S069000
Reexamination Certificate
active
06980529
ABSTRACT:
A system for determining which of several satellites to tune an integrated receiver/decoder (IRD) to for receiving electronic program guide data is described. The system scans a plurality of multi-switch ports attempting to acquire a digital marker associated with a predetermined network identifier and polarity. The acquired marker contains information representing a satellite network and a satellite transponder number. In this manner, the system automatically configures the IRD to present electronic program guide information associated with available satellites while excluding guide information associated with unavailable satellites.
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Grunebach Georgann S.
Lee Andy
The Directv Group, Inc.
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