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Apparatus for converting frequency and rf transmitter comprising same
US2016149598A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016149598-A1 |
| Application number | US-201514946255-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 19, 2015 |
| Priority date | Nov 20, 2014 |
| Publication date | May 26, 2016 |
| Grant date | — |
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Abstract
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Disclosed is an apparatus for converting a frequency. The apparatus includes: an oscillator configured to generate a first oscillation signal having a first oscillation frequency which is obtained by subtracting an input frequency from a carrier frequency of any one carrier signal among a first to a n-th carrier signals (n is a natural number), and generate a second oscillation signal having a second oscillation frequency which is obtained by adding the input frequency to a carrier frequency of any one carrier signal among a (n+1)-th to a 2n-th carrier signals; and a mixer configured to mix and output the first oscillation signal or the second oscillation signal with an input signal having the input frequency.
First claim
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What is claimed is: 1 . An apparatus for converting a frequency, the apparatus comprising: an oscillator configured to generate a first oscillation signal having a first oscillation frequency which is obtained by subtracting an input frequency from a carrier frequency of any one carrier signal among a first to a n-th carrier signals (n is a natural number), and generate a second oscillation signal having a second oscillation frequency which is obtained by adding the input frequency to a carrier frequency of any one carrier signal among a (n+1)-th to a 2n-th carrier signals; and a mixer configured to mix and output the first oscillation signal or the second oscillation signal with an input signal having the input frequency. 2 . The apparatus of claim 1 , wherein the input frequency is an intermediate frequency. 3 . The apparatus of claim 1 , wherein the mixer adds and outputs the input signal to the first oscillation signal. 4 . The apparatus of claim 3 , wherein the mixer subtracts and outputs the input signal from the second oscillator signal. 5 . An RF transmitter comprising: an oscillator configured to generate a first oscillation signal having a first oscillation frequency which is obtained by subtracting an input frequency from a carrier frequency of any one carrier signal among a first to a n-th carrier signals (n is a natural number), and generate a second oscillation signal having a second oscillation frequency which is obtained by adding the input frequency to a carrier frequency of any one carrier signal among a (n+1)-th to a 2n-th carrier signals; a mixer configured to mix and output the first oscillation signal or the second oscillation signal with an input signal having the input frequency; and a filter configured to filter a signal output from the mixer. 6 . The RF transmitter of claim 5 , wherein the filter is a band pass filter. 7 . The RF transmitter of claim 6 , wherein the band pass filter has a bandwidth defined based on a product of a bandwidth of the input signal and the 2n (n is a natural number). 8 . The RF transmitter of claim 5 , wherein the mixer adds and outputs the input signal to the first oscillation signal. 9 . The RF transmitter of claim 5 , wherein the mixer subtracts and outputs the input signal from the second oscillator signal.
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- What does patent US2016149598A1 cover?
- Disclosed is an apparatus for converting a frequency. The apparatus includes: an oscillator configured to generate a first oscillation signal having a first oscillation frequency which is obtained by subtracting an input frequency from a carrier frequency of any one carrier signal among a first to a n-th carrier signals (n is a natural number), and generate a second oscillation signal having a …
- Who is the assignee on this patent?
- Korea Electronics Telecomm
- What technology area does this patent fall under?
- Primary CPC classification H04B1/04. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu May 26 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).