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US 2014/0209680 A1Published application
Apparatus and method for radio frequency transmission
AssigneeSamsung Electronics Co., Ltd.
InventorsChol Su Yoon, Hyoung Hwan Roh, IL Jong Song
Life of this patent
Estimating the term…
Abstract
A radio frequency (RF) transmission circuit includes an antenna connection terminal, a plurality of amplifiers connected to the antenna connection terminal in parallel, a plurality of drivers for driving the plurality of amplifiers, and a control circuit configured to control operation of the plurality of drivers based on information indicating a characteristic of a RF signal to be transmitted through the antenna connection terminal.
Claims19
A RF transmission circuit comprising:
- an antenna connection terminal;
- a plurality of amplifiers connected to the antenna connection terminal in parallel;
- a plurality of drivers for driving the plurality of amplifiers;
- and
- a control circuit controlling the operation of the plurality of drivers based on characteristic information indicating a characteristic of a radio frequency (RF) signal to be transmitted through the antenna connection terminal.
2 more elements
A RF transmission circuit comprising:
- an antenna connection terminal;
- a plurality of amplifiers connected to the antenna connection terminal in parallel;
- a plurality of drivers for driving the plurality of amplifiers;
- a measuring circuit to measure a characteristic of a radio frequency (RF) signal to be transmitted through the antenna connection terminal, and to output a plurality of measuring signals;
- and
- a control circuit to control operation of the plurality of drivers based on the plurality of measuring signals.
3 more elements
A contactless smart card reader, comprising:
- an antenna connection terminal;
- a plurality of amplifiers connected in parallel to the antenna connection terminal;
- a controller configured to control the plurality of amplifiers based on characteristics of a signal to be transmitted by the contactless smart card reader.
Dependencies are inferred from the claim text.