| 发明名称 |
DYNAMIC ENVELOPE ELIMINATION AND RESTORATION POLAR TRANSMITTER |
| 摘要 |
Devices and methods for increasing and maximizing power efficiency in polar and Cartesian transmitters are provided. By way of example, an electronic device includes a transmitter configured to receive an in-phase/quadrature (I/Q) signal, generate an amplitude envelope signal based on the I/Q signal, decompose the amplitude envelope signal into an envelope amplitude portion and an envelope phase portion, and to dynamically switch between performing a polar modulation of the I/Q signal and performing an I/Q modulation of the I/Q signal based at least in part on an amplitude value of the envelope phase portion. |
| 申请公布号 |
US2017005854(A1) |
申请公布日期 |
2017.01.05 |
| 申请号 |
US201514601935 |
申请日期 |
2015.01.21 |
| 申请人 |
APPLE INC. |
发明人 |
Wolberg Dan;Blonskey Ofer |
| 分类号 |
H04L27/36;H04W52/02 |
主分类号 |
H04L27/36 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An electronic device, comprising:
a transmitter configured to:
receive an in-phase/quadrature (I/Q) signal;generate an amplitude envelope signal based on the I/Q signal;decompose the amplitude envelope signal into an envelope amplitude portion and an envelope phase portion; anddynamically switch between performing a polar modulation of the I/Q signal and performing an I/Q modulation of the I/Q signal based at least in part on an amplitude value of the envelope phase portion. |
| 地址 |
Cupertino CA US |
