Inventor

TANG YIWU

US44 patents

⚠️ This page may combine multiple inventors who share the name “TANG YIWU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TANG YIWU

QUALCOMM INC

Differential digital-to-time converter for even-order INL cancellation and supply noise/disturbance rejection

Multi-way diversity receiver with multiple synthesizers in a carrier aggregation transceiver

Distortion cancellation for dual stage carrier-aggregation (CA) low noise amplifier (LNA) non-linear second order products

Dual stage carrier-aggregation (CA) low noise amplifier (LNA) having harmonic rejection and high linearity

Programmable varactor for VCO gain compensation and phase noise reduction

Fractional-N phase locked loop delta sigma modulator noise reduction using charge pump interpolation

Sampling phase-locked loop (PLL)

Multiplex modules for carrier aggregation receivers

Dynamic local oscillator (LO) scheme and switchable receive (RX) chain for carrier aggregation

Reconfigurable multi-mode transceiver

Glitch free bandwidth-switching scheme for an analog phase-locked loop (PLL)

Radio frequency (RF) front end having multiple low noise amplifier modules

Current-efficient low noise amplifier (LNA)

Programmable frequency divider for local oscillator generation

Low power digital-to-time converter (DTC) linearization

Sampling phase-locked loop

System and method for maintaining local oscillator (LO) phase continuity

Phase-locked loop (PLL) with multiple error determiners

Low power current re-using transformer-based dual-band voltage controlled oscillator

Prescaler for a frequency divider

Frequency divider functionality detection and adjustment

Ring oscillator based frequency divider

Multimode frequency multiplier

P-type metal-oxide-semiconductor (PMOS) low drop-out (LDO) regulator

Apparatus and method for generating an oscillating output signal

Phase tracking and correction architecture

Multi-capacitor energy harvesting

Multiplex modules for carrier aggregation receivers

Multi-way diversity receiver with multiple synthesizers in a carrier aggregation transceiver

Avoiding spurious responses with reconfigurable LO dividers

VCO-coupling mitigation in a multiple-carrier, carrier aggregation receiver

Programmable clock divider for radio frequency (RF) mixers

Oscillation signal production

Hybrid voltage controlled oscillator

Phase interpolation-based fractional-N sampling phase-locked loop

Locking multiple voltage-controlled oscillators with a single phase-locked loop

TANG YIWU

High Q transformer disposed at least partly in a non-semiconductor substrate

Varactorless tunable oscillator

Spur cancellation in a digital baseband transmit signal using cancelling tones

Methods and apparatus for implementing phase rotation at baseband frequency for transmit diversity

System and method of determining an oscillator gain

LI GUANSHENG

Wideband multi-mode VCO

FAN BIN

Buffer input impedance compensation in a reference clock signal buffer

JOSEFOSKY JOHN T

Transformer within wafer test probe