Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral adapting
Reexamination Certificate
2008-07-07
2011-12-06
Alford, Kindred (Department: 2181)
Electrical computers and digital data processing systems: input/
Input/output data processing
Peripheral adapting
C348S725000
Reexamination Certificate
active
08073998
ABSTRACT:
If a device non-compatible with CEC is contained in an input path when a display apparatus is HDMI-connected hierarchically to a plurality of external devices, an external device which has transmitted <Active Source> is selected as an operation object device. A TV (100) is HDMI-connected hierarchically to external devices (an AV amplifier (20a), recorders (10a,10c), a DVD player (10b)) in a tree shape. The TV (100) receives <Active Source> indicating an active state capable of video output from the DVD player (10b) and transmits <Set Stream Path> for switching the input path to the DVD player (10b). When a device non-compatible with CEC (AV amplifier (20a)) is contained in the input path which transmits <Set Stream Path>, the TV (100) selects the DVD player (10b) specified <Active Source> as an operation object device.
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Ohnuma Atsushi
Yoshida Tatsuya
Alford Kindred
Birch & Stewart Kolasch & Birch, LLP
Sharp Kabushiki Kaisha
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