P

Inventor

IMAGAWA YASUMI

JP11 patents
⚠️ This page may combine multiple inventors who share the name “IMAGAWA YASUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

8 patents
US5361408ANov 1, 1994

Direct conversion receiver especially suitable for frequency shift keying (FSK) modulated signals

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD114 citations98
US6275542B1Aug 14, 2001

Direct conversion receiver including mixer down-converting incoming signal, and demodulator operating on downconverted signal

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD73 citations96
US5293408AMar 8, 1994

FSK data receiving system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD61 citations96
US6693977B2Feb 17, 2004

Portable radio device with direct conversion receiver including mixer down-converting incoming signal, and demodulator operating on downconverted signal

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations92
US5513387AApr 30, 1996

Automatic gain control circuit

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations92
US5448774ASep 5, 1995

Intermittent operation receiver

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD40 citations92
US5387820AFeb 7, 1995

Power supply circuit

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 citations92
US5894499AApr 13, 1999

Direct conversion receiver having filter with cut-off frequency switching means

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations74

TOSHIBA KK

1 patent
US5179727AJan 12, 1993

Automatic adjusting circuit for an analog filter

TOSHIBA KK27 citations92

PANASONIC CORP

1 patent
US8000673B2Aug 16, 2011

Diversity receiving device and receiving scheme switching method

PANASONIC CORP2 citations59

IMAGAWA YASUMI

1 patent
US8059770B2Nov 15, 2011

Diversity receiving device

IMAGAWA YASUMI4 citations57