Appeal 2007-1094
Application 09/844,976
A program delivery system 200 includes an operations center 202 where
program packaging and control information are created and assembled in the
form of digital data. (Col. 7, ll. 12-17; Fig. 1). The digital data is mapped
into digital signals for satellite transmission to the cable headend 208. (Col.
7, ll. 18-21). These signals are received by the cable headend 208 and may
be decoded, demultiplexed, managed by a local central distribution and
switching mechanism, combined and then transmitted to the set top terminal
220 located in each subscriber's home over a cable system 210. (Col. 7, ll.
24-29).
Hendricks teaches that "[a]lthough concatenated cable systems 210
are the most prevalent transmission media to the home, telephone lines,
cellular networks, fiberoptics, Personal Communication Networks and
similar technology for transmitting to the home can be used interchangeably
with this program delivery system 200." (Col. 7, ll. 29-34).
Hendricks also discloses that analog signals may be transmitted over
the communications media 216 linking the cable headend 208 and the
subscriber's home. (Col. 10, ll. 20-25; Fig. 3).
Kim describes an image signal processor, specifically a hyper text
markup language (HTML) data transmitting/receiving apparatus that
selectively inserts an NTSC broadcasting signal and an HTML signal into a
VHF or UHF broadcast channel. (Col. 1, ll. 9-13; Figs. 1, 3). In one
embodiment, an HTML data signal may be transmitted by being loaded in
the Vertical Blanking Interval (VBI) of a TV broadcast signal. (Col. 5, ll.
28-31). In a section entitled "Description of the Conventional Art," Kim
also describes prior art systems that insert and transmit information in the
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