Demodulators – Amplitude modulation demodulator – Having specific distortion – noise or other interference...
Reexamination Certificate
2005-08-09
2005-08-09
Kinkead, Arnold (Department: 2817)
Demodulators
Amplitude modulation demodulator
Having specific distortion, noise or other interference...
C329S316000, C329S361000, C329S357000, C329S358000, C455S130000, C375S324000
Reexamination Certificate
active
06927623
ABSTRACT:
To improve the quality of the demodulated signal without altering the form in which an AM radio wave is transmitted, the received amplitude-modulated signal is converted to a single-sideband signal, and the information signal demodulated from the phase term of this converted single-sideband signal.
REFERENCES:
patent: 4307347 (1981-12-01), Thomson
patent: 4945313 (1990-07-01), Brilka et al.
patent: 5548243 (1996-08-01), Sun et al.
patent: PCT/IL00/00723 (2001-05-01), None
German Patent Document DE4404888A1, Sep. 1, 1994.
Ando Takashi
Daikoku Kazuhiro
Hosoya Shinichi
Ito Yasuhiro
Nishida Yasuaki
Japan Kyastem Co., Ltd.
Kinkead Arnold
NHK Engineering Services, Inc.
Nippon Hoso Kyokai
RCOM Corporation
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