Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2007-11-13
2007-11-13
Kincaid, Lester G. (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S420000, C455S419000, C455S567000, C455S070000
Reexamination Certificate
active
10911985
ABSTRACT:
A device for ring tone output. The device comprises a phone speaker, a ringing speaker, a receiver, a switching device and a micro-controller. The receiver acquires audio data via a traffic channel. The audio data comprises a ring tone. The switching device receives the ring tone and selectively transmits the ring tone to the phone speaker and the ringing speaker. The micro-controller directs the switching device to transmit the ring tone to the ringing speaker.
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patent: 2004/0266401 (2004-12-01), Krishnan
Cheng Yi-Wen
Du Ben-Chuan
Fan Chen-Huang
Benq Corporation
Kincaid Lester G.
Thomas Kayden Horstemeyer & Risley
Zewari Sayed T.
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