Band converted signal generator and band extender

Details Band converted signal generator and band extender Band converted signal generator and band extender

2011-08-16

2011-08-16

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

C327S114000, C327S115000, C327S117000

Reexamination Certificate

active

07999580

ABSTRACT:
A band converted signal generator includes a low range characteristic application section (16) as a component emphasis means emphasizing only one or more specific frequency components selected from among frequency components of an input signal; and a low pass filter (17) as a component extraction means extracting a signal component of a desired frequency band from an output signal supplied from the low range characteristic application section (16). A band extender (1000) includes the above-mentioned band converted signal generator, and an adder (15) adding the input signal, a certain frequency band of which is suppressed, and a signal including at least one component generated within the certain frequency band which is suppressed.

REFERENCES:
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patent: 1535459 (2004-10-01), None
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patent: 2003-256000 (2003-09-01), None
patent: 2005-173476 (2005-06-01), None
patent: WO-2004/077408 (2004-09-01), None
Yuki Yoshida et al., “Codebook Mapping ni yoru Kyotaiiki Onsei kara Kotaiiki Onsei no Fukugenho” IEICE Technical Report, Aug. 1993, SP93-61, pp. 31-38.

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