Title:
DIVERSITY RECEIVER
Document Type and Number:
Japanese Patent JP3604859
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain excellent reception sensitivity without losing a diversity effect even when effect of disturbing wave is received externally in a maximum ratio synthesis diversity method.
SOLUTION: Each of disturbing wave detection circuits 41, 42, 43 detects presence of effect of a disturbing wave by antennas based on a demodulation signal processed via each of antennas 1, 2, 3, each of reception circuits 11, 12, 13 and each of demodulation circuits 21, 22, 23 and each of control circuits 61, 62, 63 uses a weighting circuit to exclude the demodulated signal from diversity processing when the effect of the disturbing wave is detected. On the other hand, each control circuit allows the weighting circuit to include the demodulation signal to the diversity processing when the effect of the disturbing wave is not detected.
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Inventors:
Takeshi Fukunaga
Application Number:
JP6809097A
Publication Date:
December 22, 2004
Filing Date:
March 21, 1997
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G01S3/72; H04B7/08; H04L1/06; (IPC1-7): H04B7/08; G01S3/72; H04L1/06
Domestic Patent References:
| JP294715A | ||||
| JP846557A |
Attorney, Agent or Firm:
Shogo Takahashi
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka