Inventor
SIWIAK KAZIMIERZ
US41 patents
⚠️ This page may combine multiple inventors who share the name “SIWIAK KAZIMIERZ”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MOTOROLA INC
30 patentsUS5276912AJan 4, 1994
Radio frequency power amplifier having variable output power
MOTOROLA INC223 citations99
US4882579ANov 21, 1989
Code division multiplexed acknowledge back paging system
MOTOROLA INC209 citations99
US4823123AApr 18, 1989
Knowledge back pager with frequency control apparatus
MOTOROLA INC172 citations99
US4504834AMar 12, 1985
Coaxial dipole antenna with extended effective aperture
MOTOROLA INC153 citations99
US4875038AOct 17, 1989
Frequency division multiplexed acknowledge back paging system
MOTOROLA INC239 citations98
US5920840AJul 6, 1999
Communication system and method using a speaker dependent time-scaling technique
MOTOROLA INC120 citations97
US4825193AApr 25, 1989
Acknowledge back pager with adaptive variable transmitter output power
MOTOROLA INC129 citations97
US5640166AJun 17, 1997
Method for compensating for doppler frequency shifts for satellite communication systems
MOTOROLA INC61 citations96
US5537398AJul 16, 1996
Apparatus for multi-rate simulcast communications
MOTOROLA INC82 citations96
US5446922AAug 29, 1995
Method and apparatus for switched diversity reception of a radio signal
MOTOROLA INC61 citations96
US5410749AApr 25, 1995
Radio communication device having a microstrip antenna with integral receiver systems
MOTOROLA INC76 citations96
US5325403AJun 28, 1994
Method and apparatus for dual-channel diversity reception of a radio signal
MOTOROLA INC82 citations96
US5239306AAug 24, 1993
Dual mode receiver having battery saving capability
MOTOROLA INC87 citations96
US4578628AMar 25, 1986
Portable battery powered electrical apparatus with improved battery pack protected against inadvertent short circuit of the battery terminals
MOTOROLA INC109 citations96
US4442438AApr 10, 1984
Helical antenna structure capable of resonating at two different frequencies
MOTOROLA INC81 citations96
US4313119AJan 26, 1982
Dual mode transceiver antenna
MOTOROLA INC136 citations96
US5689440ANov 18, 1997
Voice compression method and apparatus in a communication system
MOTOROLA INC61 citations95
US5420596AMay 30, 1995
Quarter-wave gap-coupled tunable strip antenna
MOTOROLA INC83 citations95
US4891637AJan 2, 1990
Acknowledge back pager with apparatus for controlling transmit frequency
MOTOROLA INC118 citations95
US5432521AJul 11, 1995
Satellite receiver system having doppler frequency shift tracking
MOTOROLA INC46 citations92
US5113196AMay 12, 1992
Loop antenna with transmission line feed
MOTOROLA INC50 citations92
US5109544AApr 28, 1992
Paging receiver with automatic frequency control
MOTOROLA INC50 citations92
US4725395AFeb 16, 1988
Antenna and method of manufacturing an antenna
MOTOROLA INC67 citations92
US4847626AJul 11, 1989
Microstrip balun-antenna
MOTOROLA INC74 citations91
US4737797AApr 12, 1988
Microstrip balun-antenna apparatus
MOTOROLA INC70 citations91
US4516127AMay 7, 1985
Three element low profile antenna
MOTOROLA INC25 citations82
US5537683AJul 16, 1996
Radio paging system with antenna pattern exhibiting high diversity gain
MOTOROLA INC11 citations74
US5668923ASep 16, 1997
Voice messaging system and method making efficient use of orthogonal modulation components
MOTOROLA INC11 citations73
US5448253ASep 5, 1995
Antenna with integral transmission line section
MOTOROLA INC17 citations69
US4574290AMar 4, 1986
High gain vertically polarized antenna structure
MOTOROLA INC4 citations63
ALEREON INC
4 patentsUS7206334B2Apr 17, 2007
Ultra-wideband high data-rate communication apparatus and associated methods
ALEREON INC132 citations99
US7787513B2Aug 31, 2010
Transmitting and receiving spread spectrum signals using continuous waveforms
ALEREON INC56 citations98
US7190729B2Mar 13, 2007
Ultra-wideband high data-rate communications
ALEREON INC137 citations98
US7394846B2Jul 1, 2008
Ultra-wideband high data-rate communication apparatus and methods
ALEREON INC5 citations63