Apparatus and methods of accessing all channels of a superheterodyne receiver simultaneously
US-2015381213-A1 · Dec 31, 2015 · US
Signal receiving device and signal receiving method
US9166642B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9166642-B2 |
| Application number | US-201213404343-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 24, 2012 |
| Priority date | Feb 28, 2011 |
| Publication date | Oct 20, 2015 |
| Grant date | Oct 20, 2015 |
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Abstract
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A signal receiving device and signal receiving method to pass a desired frequency component of an intermediate frequency signal by using an IF filter without increasing a chip area. The signal receiving device comprises: a mixer to mix a received frequency signal with a local oscillation frequency signal to generate an intermediate frequency signal; an IF filter to pass a predetermined frequency component of the intermediate frequency signal; a controlling part which adjusts, according to a frequency band of the intermediate frequency signal, the frequency band of the IF filter, and adjust, according to a center frequency set in the IF filter that fluctuates with the adjustment, a center frequency of the intermediate frequency signal to be inputted in the IF filter; and a demodulating part to demodulate a frequency component of the intermediate frequency signal outputted after passing through the IF filter.
First claim
Opening claim text (preview).
What is claimed is: 1. A frequency signal receiving device comprising: a mixer generating an intermediate frequency which has a predetermined center frequency by mixing a received frequency signal with a local oscillation frequency signal generated by a local oscillator, and outputting the intermediate frequency signal; an IF filter comprising a high-pass filter and a low-pass filter connected in series to each other each of which includes a resistance and condenser block that i…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04B1/28Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9166642B2 cover?
- A signal receiving device and signal receiving method to pass a desired frequency component of an intermediate frequency signal by using an IF filter without increasing a chip area. The signal receiving device comprises: a mixer to mix a received frequency signal with a local oscillation frequency signal to generate an intermediate frequency signal; an IF filter to pass a predetermined frequenc…
- Who is the assignee on this patent?
- Ochiai Toshiyuki, Lapis Semiconductor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04B1/28. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 20 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).