Appeal No. 95-3891
Application 08/066,405
(e.g., sound level or channel selection) or an appliance control
signal (e.g., lamp on or off). If it is the latter, the decoder
controls the appliance via a control signal sent over the AC
power line to an appliance control module 55 (Fig. 1). As
explained at column 2, line 33 et seq., the remote control
transmitter is put into the appliance control mode by pressing
key "9," after which one of keys "1" through "6" is pressed to
identify which appliance is to be controlled. Next, the type of
control (e.g., on or off) is indicated by pressing one of keys
"7," "8," "9," "CHANNEL UP," or "CHANNEL DOWN." The appliance
control mode is terminated manually by pressing the "RECALL" key
or automatically if sixteen seconds pass without activation of a
key.
Harger discloses a microcontroller circuit that can be
used in various types of remote control transmitters, including a
TV remote control transmitter 10a (Fig. 1), a VCR remote control
transmitter 12a (Fig. 1), a video disc player (VD) remote control
transmitter 14a (Fig. 1), and a "unified" transmitter 20 for
remotely controlling all three types of devices (Fig. 2).
Referring to Figure 3, depending on the type of transmitter in
which it is being used, microcontroller output terminals "OUT 1,"
"OUT 2," and "IN" are strapped to ground (binary "0") or a source
-9-
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Last modified: November 3, 2007