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1. (JP2001527722 )

Office : Japan
Application Number: 54826598T Application Date: 30.04.1998
Publication Number: 2001527722 Publication Date: 25.12.2001
Publication Kind : A
Prior PCT appl.: Application Number:WOUS9808893 ; Publication Number: Click to see the data
IPC:
H03F 3/68
H03F 1/2
H03F 3/60
H04B 1/4
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
3
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
68
Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
1
Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
02
Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
3
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
60
Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
02
Transmitters
04
Circuits
CPC:
H03F 3/602
H03F 1/0294
Applicants:
Inventors:
Priority Data: 85054197 02.05.1997 US
US9808893 30.04.1998 WO
Title:
Abstract: front page image
Also published as:
KR1020010012138EP0979551CN1254453AU1998072769WO/1998/051007