Inventor

BOERSTLER DAVID WILLIAM

US90 patents

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

BOERSTLER DAVID WILLIAM

IBM

Adaptive method and apparatus to control loop bandwidth of a phase lock loop

Self-resetting phase/frequency detector with reduced dead zone

Process variation monitor for integrated circuits

CMOS process compensation circuit

CMOS high-speed differential to single-ended converter circuit

Multiphase clock recovery using D-type phase detector

High-frequency low-voltage multiphase voltage-controlled oscillator

Delayed matching signal generator and frequency multiplier using scaled delay networks

Low-voltage reference circuit

High frequency phase-locked loop circuit having reduced jitter

Processor clock circuit

Low gain voltage-controlled oscillator

Noise generator for evaluating mixed signal integrated circuits

Interleaved feedforward VCO and PLL

Dynamic duty cycle adjuster

Differential charge-pump with improved linearity

Power consumption control mechanism and method therefor

System for synchronizing nodes in a heterogeneous computer system by using multistage frequency synthesizer to dynamically adjust clock frequency of the nodes

Multiphase clock generator

Duty cycle measurement method and apparatus that operates in a calibration mode and a test mode

Method and apparatus for measuring the relative duty cycle of a clock signal

System and method for automatic calibration of a reference voltage

Circuit to reduce power supply fluctuations in high frequency/ high power circuits

Digital circuit to measure and/or correct duty cycles

Method and apparatus for correcting the duty cycle of a digital signal

Oscillator array with row and column control

Method and system for clock/data recovery for self-clocked high speed interconnects

Self-correcting multiphase clock recovery

Apparatus and method for clock skew measurement

Multiphase voltage controlled oscillator with variable gain and range

Temperature monitor/compensation circuit for integrated circuits

Differential voltage controlled oscillator, and method therefor

Apparatus and method for high resolution frequency adjustment in a multistage frequency synthesizer

Apparatus and method for dynamic frequency adjustment in a frequency synthesizer

Charge leakage correction circuit for applications in PLLs

Method to reduce transient current swings during mode transitions of high frequency/high power chips

Method and apparatus for on-chip duty cycle measurement

Method and apparatus for measuring the duty cycle of a digital signal

Method of functionality testing for a ring oscillator

Thermal sensing method and system

Circuit for minimizing filter capacitance leakage induced jitter in phase locked loops (PPLs)

Highly scalable glitch-free frequency divider

High-frequency phase/frequency detector with improved reset mechanism

Interleaved VCO with balanced feedforward

Method and apparatus for latching a clocked data signal

Differential charge pump and filter with common-mode voltage control

CMOS low voltage current reference

TOSHIBA KK

Thermal sensing circuit using bandgap voltage reference generators without trimming circuitry

BOERSTLER DAVID WILLIAM

Self-biased high speed level shifter circuit

TOSHIBA AMERICAN ELECTRONIC CO

Thermal sensing circuits using bandgap voltage reference generators without trimming circuitry