Yunfei Shi

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San Diego, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Dynamic headroom for envelope tracking
- Patent number 9,537,450
- Issue date Jan 3, 2017
- QUALCOMM Incorporated
- Lennart Karl-Axel Mathe
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Programmable frequency range for boost converter clocks
- Patent number 9,372,492
- Issue date Jun 21, 2016
- QUALCOMM Incorporated
- Song S Shi
- G05 - CONTROLLING REGULATING
Information Patent Grant
Control logic for switches coupled to an inductor
- Patent number 9,130,457
- Issue date Sep 8, 2015
- QUALCOMM Incorporated
- Song S Shi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Dynamic headroom for envelope tracking
- Patent number 8,866,547
- Issue date Oct 21, 2014
- QUALCOMM Incorporated
- Lennart Karl-Axel Mathe
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Boost converter control for envelope tracking
- Patent number 8,754,707
- Issue date Jun 17, 2014
- QUALCOMM Incorporated
- Lennart Karl-Axel Mathe
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
DYNAMIC HEADROOM FOR ENVELOPE TRACKING
- Publication number 20150002235
- Publication date Jan 1, 2015
- QUALCOMM Incorporated
- Lennart Karl-Axel Mathe
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
ENVELOPE TRACKER WITH VARIABLE BOOSTED SUPPLY VOLTAGE
- Publication number 20140361830
- Publication date Dec 11, 2014
- Lennart Karl-Axel Mathe
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
DYNAMIC HEADROOM FOR ENVELOPE TRACKING
- Publication number 20140210559
- Publication date Jul 31, 2014
- QUALCOMM Incorporated
- Lennart Karl-Axel Mathe
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
PROGRAMMABLE FREQUENCY RANGE FOR BOOST CONVERTER CLOCKS
- Publication number 20140197814
- Publication date Jul 17, 2014
- QUALCOMM Incorporated
- Song S. Shi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BOOST CONVERTER CONTROL FOR ENVELOPE TRACKING
- Publication number 20140111276
- Publication date Apr 24, 2014
- QUALCOMM Incorporated
- Lennart Karl-Axel Mathe
- H03 - BASIC ELECTRONIC CIRCUITRY