Multi-mixer system and associated receiver and signal processing method
US-9847754-B2 · Dec 19, 2017 · US
Frequency translation filter apparatus and method
US9112450B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9112450-B2 |
| Application number | US-201213983079-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 8, 2012 |
| Priority date | Feb 11, 2011 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
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A frequency translation filter 500 is configured to receive a radio frequency (RF) signal 501 comprising first and second non-contiguous carriers or non-contiguous frequency ranges. The frequency translation filter comprises a mixer 503 configured to mix the RF signal 501 received on a first input with a local oscillator (LO) signal 505 received on a second input. A filter 507 comprises a frequency dependent load impedance, the filter having band-pass characteristics which, when frequency translated using the mixer 503 , contain first and second pass-bands corresponding to the first and second non-contiguous carriers or non-contiguous frequency ranges. The first and second pass-bands are centered about the local oscillator frequency.
First claim
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The invention claimed is: 1. A frequency translation filter for handling carrier aggregation in a radio receiver, the frequency translation filter receiving a radio frequency signal comprising first and second non-contiguous carriers or first and second non-contiguous frequency ranges, the frequency translation filter comprising: a mixer configured to mix the radio frequency signal received on a first input with a local oscillator signal received on a second input and having a loc…
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- What does patent US9112450B2 cover?
- A frequency translation filter 500 is configured to receive a radio frequency (RF) signal 501 comprising first and second non-contiguous carriers or non-contiguous frequency ranges. The frequency translation filter comprises a mixer 503 configured to mix the RF signal 501 received on a first input with a local oscillator (LO) signal 505 received on a second input. A filter 507 compr…
- Who is the assignee on this patent?
- Sundström Lars, Mattisson Sven, Ericsson Telefon Ab L M
- What technology area does this patent fall under?
- Primary CPC classification H03D7/16. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 18 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).