Inventor

BOERSTLER DAVID W

US50 patents

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

BOERSTLER DAVID W

IBM

Dynamically scalable low voltage clock generation system

Apparatus and method for automatically self-calibrating a duty cycle circuit for maximum chip performance

Apparatus and method for verifying glitch-free operation of a multiplexer

Apparatus and method for providing a reprogrammable electrically programmable fuse

Clock signal selector circuit with reduced probability of erroneous output due to metastability

Lock detectors having a narrow sensitivity range

Multi-mode VCO

Glitch-less clock selector

Clock divider with bypass and stop clock

Fiber optic mode conditioner

Dual-mode laser diode transmitter

Structure for a duty cycle correction circuit

Structure for a phase locked loop with adjustable voltage based on temperature

Duty cycle correction circuit whose operation is largely independent of operating voltage and process

Adjusting voltage for a phase locked loop based on temperature

Highly scalable methods and apparatus for multiplexing signals

Duty cycle correction circuit whose operation is largely independent of operating voltage and process

Apparatus and method for automatically self-calibrating a duty cycle circuit for maximum chip performance

Level shifter apparatus and method for minimizing duty cycle distortion

Method and apparatus for measuring and adjusting the duty cycle of a high speed clock

Method and apparatus for semi-automatic extraction and monitoring of diode ideality in a manufacturing environment

Dual mode charge pump

Systems and methods for initializing PLLs and measuring VCO characteristics

Structure for interleaved voltage controlled oscillator

Interleaved voltage controlled oscillator

Capacitively cross-coupled DCS emitter-follower output stage

Structure for an absolute duty cycle measurement circuit

Structure for a programmable interpolative voltage controlled oscillator with adjustable range

Structure for a duty cycle measurement circuit

Absolute duty cycle measurement

Apparatus and method for extracting a maximum pulse width of a pulse width limiter

High frequency circuit capable of error detection and correction of code patterns running at full speed

Level shifter system and method to minimize duty cycle error due to voltage differences across power domains

Duty cycle measurement apparatus and method

Adaptive phase locked loop

Interleaved voltage controlled oscillator

Low signal margin detect circuit

System and method for examining high-frequency clock-masking signal patterns at full speed

Interleaved voltage controlled oscillator

Structure for a duty cycle correction circuit

Design structure for a phase locked loop with stabilized dynamic response

Duty cycle measurement for various signals throughout an integrated circuit device

Phase locked loop with temperature and process compensation

Thermal sensing method and apparatus using existing ESD devices

Enhanced differential current switch compensating upshift circuit

TOSHIBA KK

Systems and methods for level shifting using AC coupling

Systems and methods for PLL linearity measurement, PLL output duty cycle measurement and duty cycle correction

Systems and methods for PLL linearity measurement, PLL output duty cycle measurement and duty cycle correction

QI JIEMING

Variable gain amplifier with reduced power consumption

BOERSTLER DAVID W

Structure for a circuit obtaining desired phase locked loop duty cycle without pre-scaler