Inventor

HECK JOSEPH P

US38 patents

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

HECK JOSEPH P

MOTOROLA INC

Direct current (DC) offset compensation method and apparatus

Zero intermediate frequency receiver having an automatic gain control circuit

Integratable DC blocking circuit

Dual conversion FM receiver using phase locked direct conversion IF

Zero intermediate frequency noise blanker

Balanced mixer circuit with improved linearity

Two-port synthesizer modulation system employing an improved reference phase modulator

Generating transmit injection from receiver first and second injections

Wide tuning range operational transconductance amplifiers

Method and apparatus to correct for in-phase and quadrature-phase gain imbalance in communication circuitry

Method and apparatus for providing DC offset correction and hold capability

Method and apparatus providing improved intermodulation distortion protection

Method and apparatus for compensating phase locked receivers

Decoder circuit for phase modulated signals

Compensated digital frequency synthesizer

Transient suppression circuit for a time domain duplex transceiver

Frequency modulated synthesizer using low frequency offset mixed VCO

Dual port FM demodulation in phase locked receivers

Method and apparatus providing improved mixer performance for radio receivers

Frequency synthesizer

Sideband receiver with pilot lock

Sample-and-hold phase detector for use in a phase locked loop

VCO range shift and modulation device

Null initiated method and system for monitoring a priority channel

Radio having a combined PLL and AFC loop and method of operating same

Continuous transmission mode radio with control information monitoring capability

Variable gain control circuit for a receiver and method therefor

Adaptive correction of DC error transients

Delay locked loop synthesizer with multiple outputs and digital modulation

Receiver with chopper stabilization and method thereof

MOTOROLA SOLUTIONS INC

Tunable multi-path filter

Method and apparatus for in-channel interference cancellation

Method and apparatus for implementing a low noise amplifier with associated gain and input impedance

System and method for processing radiofrequency signals using modulation duty cycle scaling

Method, device, and system for setting an operating parameter of a radio receiver based on a predicted radio signal environment

Systems for and methods of using a mirrored wideband baseband current for automatic gain control of an RF receiver

HECK JOSEPH P

Heterodyne commutating mixer apparatus

PINDER ELLIS A

Method to facilitate late joining of a call