Telecommunications – Transmitter and receiver at separate stations – Frequency or phase modulation
Reexamination Certificate
2005-07-05
2005-07-05
Vo, Nguyen T. (Department: 2685)
Telecommunications
Transmitter and receiver at separate stations
Frequency or phase modulation
C455S093000, C455S142000, C455S352000
Reexamination Certificate
active
06915109
ABSTRACT:
In a method of operating a remote control system and in such a system comprising an RF transmission and receiving system and an IR transmission device the sub-carrier information of the IR signal is transmitted in the RF signal in a signal separate from the envelope information of the IR signal which is contained in a envelope signal.
REFERENCES:
patent: 5636264 (1997-06-01), Sulavuori et al.
patent: 5815108 (1998-09-01), Terk
patent: 2004/0162108 (2004-08-01), Fu et al.
Lambrechts Marc Emiel Celine
Nickson Robert Edmond Victor A.
Phuah Chookhoon
Wouters Johan Agnes Emile
Goodman Edward W.
Koninklijke Philips Electronics , N.V.
Vo Nguyen T.
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