Linear amplifying device, input signal supplying method, and origin avoiding circuit used therein
US10819292B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | May 29, 2017 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Aug 7, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2201/3236
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Ringing of a signal after passing through a low pass filter in an LINC type linear amplifier is remedied. A linear amplifying device includes the linear amplifier including the low pass filter for removing high-frequency components; and an origin avoiding circuit which receives an original input signal and is provided upstream of the linear amplifier. If the original input signal is sampled in the vicinity of an origin, the origin avoiding circuit modifies a sampled value so at to replace the sampled value with a fixed value, and supplies the modified input signal to the linear amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.