Telecommunications – Receiver or analog modulated signal frequency converter – Plural receivers
Patent
1997-08-27
2000-11-14
Urban, Edward F.
Telecommunications
Receiver or analog modulated signal frequency converter
Plural receivers
455273, 375347, H04B 1702
Patent
active
061481866
ABSTRACT:
Detection outputs 103 and 104 of phase-detection sections 9 and 19 of two reception circuits are input to phase difference detection sections 10 and 20, respectively. A detection output 103 indicating an instantaneous phase amount of each symbol as each phase output of a QPSK received signal is converted into phase difference detection outputs 105 and 106 each indicating a difference between the respective symbols. The output is input to a combination process section 23 where amplitude signals 101 and 102 are operated as weighting factors and vector combination so as to obtain a combination signal.
REFERENCES:
patent: 3934204 (1976-01-01), Hill
patent: 4373207 (1983-02-01), Hecken
patent: 4397036 (1983-08-01), Hirade et al.
patent: 4752941 (1988-06-01), Takahara et al.
patent: 4805229 (1989-02-01), Mobley
patent: 5109392 (1992-04-01), McDonald
patent: 5203023 (1993-04-01), Saito et al.
patent: 5461646 (1995-10-01), Anvari
patent: 5465271 (1995-11-01), Hladik et al.
patent: 5761252 (1998-06-01), Iinuma
patent: 5787112 (1998-08-01), Murai
patent: 5889826 (1999-03-01), Takahashi
NEC Corporation
Tran Congvan
Urban Edward F.
LandOfFree
Method of combining received signal of diversity type radio devi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of combining received signal of diversity type radio devi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of combining received signal of diversity type radio devi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2074263