Inventor

MA JOHN Y

US21 patents

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

MA JOHN Y

CAPETRONIC BSR LTD

TVRD receiver system with automatic bandwidth adjustment

TVRO earth station receiver for reducing interference and improving picture quality

Satellite seeking system for earth-station antennas for TVRO systems

TVRO receiver system with low-cost video-noise reduction filter

TVRO receiver system for locating audio subcarriers

Automatic polarization control system for TVRO receivers

TVRO receiver system with low-cost video-noise reduction filter

ZENITH RADIO CORP

Television receiver with tuner capable of receiving air and CATV signals

Signal overload protection circuit for varactor tuner

Non-proportionate AFC system

Television tuning system with precision substrate switch assembly

Abrupt junction varactor diode television tuner

Television receiver automatic frequency control system

MA JOHN Y

Digitally temperature compensated voltage-controlled oscillator

Ferrite-core antenna

TVRO receiver system with tracking filter for rejection of image frequencies

BPSK demodulator and FM receiver for digital data pagers

TVRO receiver with surface mounted high frequency voltage-controlled oscillator

ASTEC INT LTD

Printed circuit transformer

Interference filter with high degree of selectivity for tvro receiver system

(unassigned)

Digitally temperature compensated voltage-controlled oscillator tunable to different frequency channels