Resilient channel and broadcast modulation
US-9225576-B1 · Dec 29, 2015 · US
Quadrature power amplifier having increased efficiency
US9106501B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9106501-B2 |
| Application number | US-201313856206-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 3, 2013 |
| Priority date | Apr 3, 2013 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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A method and system for achieving increased efficiency in a quadrature modulated power amplifier ( 11 ) are disclosed. In some embodiments, a supply path ( 36, 40 ) and a gain path ( 38, 42 ) are provided in each of an I-channel and a Q-channel. The supply path ( 36, 40 ) produces a variable voltage and the gain path ( 38, 42 ) produces a gain control signal. The variable voltage and gain control signal are used by a variable gain power amplifier ( 44, 46 ) to modulate a local oscillator signal to produce a modulated radio signal.
First claim
Opening claim text (preview).
What is claimed is: 1. A power amplifier subsystem, comprising: a first channel circuit, comprising: a first channel supply path configured to process a first channel input signal to produce a first channel variable voltage based on the first channel input signal; a first channel gain path configured to process the first channel input signal to produce a first channel gain control signal; and a first channel variable gain amplifier configured to: receive the first channel va…
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Electricity · mapped topic
- H04L27/362Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9106501B2 cover?
- A method and system for achieving increased efficiency in a quadrature modulated power amplifier ( 11 ) are disclosed. In some embodiments, a supply path ( 36, 40 ) and a gain path ( 38, 42 ) are provided in each of an I-channel and a Q-channel. The supply path ( 36, 40 ) produces a variable voltage and the gain path ( 38, 42 ) produces a gain control signal. The variable voltage and gain contr…
- Who is the assignee on this patent?
- Ericsson Telefon Ab L M
- What technology area does this patent fall under?
- Primary CPC classification H04L27/362. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 11 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).