Radio-frequency receiving apparatus

Details Radio-frequency receiving apparatus Radio-frequency receiving apparatus

2007-09-11

2007-09-11

Nguyen, Simon (Department: 2618)

Telecommunications

Radiotelephone system

C455S067140, C455S115200, C455S226100

Reexamination Certificate

active

10899060

ABSTRACT:
The subject invention provides a radio-frequency receiving apparatus including a built-in test signal source for producing a radio-frequency test signal. This structure achieves cost reduction, as well as an increase of the yield, since an expensive test signal source is not required. Further, the built-in test signal source creates a test signal by using signals from a VCO and an oscillator, that are used for creating a local oscillation signal for frequency conversion. Thus, the test can be performed inside the integrated circuit with minimum increase of circuit scale.

REFERENCES:
patent: 5835850 (1998-11-01), Kumar
patent: 6088581 (2000-07-01), Bickley et al.
patent: 6259314 (2001-07-01), Liu et al.
patent: 6380748 (2002-04-01), Kang et al.
patent: 7050778 (2006-05-01), Olson
patent: 2001/0046845 (2001-11-01), Schetelig et al.
patent: 2005/0164648 (2005-07-01), Gannholm
patent: 57-20045 (1982-02-01), None
patent: 2002-232498 (2002-08-01), None

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