High frequency receiver

Telecommunications – Receiver or analog modulated signal frequency converter

Reexamination Certificate

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Details

C455S318000, C455S324000, C455S326000, C455S339000, C348S725000, C348S729000, C348S731000

Reexamination Certificate

active

10695825

ABSTRACT:
A high frequency receiver of the present invention has a mixer of which one input part is connected to an output part of a filter and the other input part is connected to an output part of a frequency-variable local oscillator, and an output terminal connected to an output part of the mixer. The mixer is an image rejection mixer. The filter has a moderated damping characteristic in a frequency where the image rejection mixer reduces an image. Therefore, a high performance filter is not required, and hence a low price is realized.

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patent: 1 195 889 (2002-04-01), None
patent: 7-297682 (1995-11-01), None
Baumberger, Werner, “A Single-Chip Image Rejecting Receiver for the 2.44 GHz Band Using Commercial GaAs-MESFET-Technology”,IEEE, vol. 29, No. 10, Oct. 1994, pp. 1244-1249.

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