Telecommunications – Receiver or analog modulated signal frequency converter – Plural receivers
Patent
1999-03-19
2000-12-12
Maung, Nay
Telecommunications
Receiver or analog modulated signal frequency converter
Plural receivers
455139, 455273, 4552761, 375347, H04B 1702
Patent
active
061610011
ABSTRACT:
A diversity reception device which weights in proportion to the reception level and combines a plurality of reception signals, includes a phase demodulator for demodulating the phase of the reception signal, a converter to output the sine and cosine elements of the reception signal, a sine element adder to add up sine element of each reception signal, and a cosine element adder to add up cosine element of each reception signal. The converter fetches and outputs predetermined values on sine and cosine elements of the reception signal upon input of the reception signal's reception level and phase data that is sent from phase demodulator. Therefore, the present device does not require expensive electronic circuits and can be made of small digital circuits suitable for IC including a memory.
REFERENCES:
patent: 4015205 (1977-03-01), Ikeda et al.
patent: 4270210 (1981-05-01), Tan et al.
patent: 5280637 (1994-01-01), Larosa et al.
patent: 5321850 (1994-06-01), Backstrom et al.
patent: 5461646 (1995-10-01), Anvari
patent: 5465271 (1995-11-01), Hladik
patent: 5761252 (1998-06-01), Iinuma
patent: 5901187 (1999-05-01), Iinuma
"Postdetection Phase Combining Diversity," Masaharu Ikura et al., IEEE Transactions on Vehicular Technology, May 1994, vol. 43, No. 2, pp. 298-302.
Maung Nay
Sanyo Electric Co,. Ltd.
Trinh Sonny
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