Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1989-08-18
1991-03-19
Eisenzopf, Reinhard J.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455352, 381 25, 3581941, H04B 106
Patent
active
050017748
ABSTRACT:
A remote control circuit for remotely controlling a power source and a volume of a main set from a stereo-headphone composed of a remote control transmitting circuit arranged in a headphone, and a remote control receiving circuit arranged in a mainset.
REFERENCES:
patent: 3714579 (1973-01-01), Valdes et al.
patent: 4375651 (1983-03-01), Templin et al.
patent: 4433209 (1984-02-01), Kurosawa et al.
patent: 4549179 (1985-10-01), Stenardo
patent: 4807052 (1989-02-01), Amano
patent: 4829571 (1989-05-01), Kakiuchi et al.
patent: 4845751 (1989-07-01), Schwab
Bushnell Robert E.
Charouel Lisa
Eisenzopf Reinhard J.
Samsung Electronics Co,. Ltd.
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