Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Reexamination Certificate
2006-04-11
2006-04-11
Tsang, Fan (Department: 2645)
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
C455S078000, C455S570000, C370S282000, C375S257000, C343S704000, C333S149000, C379S388020, C330S051000
Reexamination Certificate
active
07027790
ABSTRACT:
A transceiver front-end provides an interface between a transmission medium and transmitter, and between a transmission medium and receiver. The transceiver front-end includes a hybrid circuit, a high-pass filter, and a gain stage, that permits the reduction or the complete elimination of buffer amplifiers. Buffer amplifiers can be eliminated because the hybrid circuit and/or the high-pass filter are adapted so that they can be directly connected to each other, without a loss in circuit performance. Furthermore, the high-pass filter and/or the gain stage are also adapted so they can be directly connected. As such, the transceiver front-end can be constructed using all passive components, reducing or eliminating excess heat generation.
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Lin Chi-Hung
van de Plassche Rudy J.
Westra Jan R.
Broadcom Corporation
Elahee Md S.
Sterne Kessler Goldstein & Fox P.L.L.C.
Tsang Fan
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