Inventor

SCARPA CARL G

US19 patents

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

SCARPA CARL G

HITACHI AMERICA LTD

Method and apparatus for NTSC signal interference cancellation using recursive digital notch filters

Narrowband interference cancellation through the use of digital recursive notch filters

Apparatus for NTSC signal interference cancellation through the use of digital recursive notch filters

Method and apparatus for demodulating QAM and VSB signals

Shared resource modulator-demodulator circuits for use with vestigial sideband signals

Methods of performing interpolation using frequency shifting operations and filters

Shared resources modulator-demodulator circuits for use with quadrature amplitude modulated signals

Automatic VSB/QAM modulation recognition method and apparatus

Apparatus and method for varying the slew rate of a digital automatic gain control circuit

Automatic frequency control using split-band signal strength measurements

Digital timing recovery circuit

Methods and apparatus for implementing a digital modulator

Digital interpolation up sampling circuit and digital modulator using same

Automatic television signal detector to differentiate NTSC signals from HDJV/AJV signals

Synchronous pulse generator

Apparatus for NTSC signal interference cancellation through the use of digital recursive notch filters

Methods and apparatus for implementing and controlling a digital modulator

HITACHI LTD

Robust OFDM carrier recovery methods and apparatus

Methods and apparatus for spectral filtering channel estimates